There are many kinds of refrigeration methods, such as gas expansion refrigeration, liquid gasification refrigeration, vortex tube refrigeration and thermoelectric refrigeration. Among them, liquid gasification refrigeration is the most widely used, and its working principle is to realize refrigeration by using the heat absorption of liquid gasification.In combination with these conditions, solar hvac It can still let us see good development and bring fresh vitality to the whole market. https://puremind.com/product-category/puremind-air-conditioner/solar-air-conditioner/

　　

　　1, the working principle of air conditioning (mainly refrigeration, heating on the contrary):

　　

　　The high-temperature and high-pressure refrigerant discharged from the compressor flows through the outdoor heat exchanger through the four-way valve, and dissipates heat to the outdoor air through heating transfer, and the refrigerant changes from gaseous state to liquid state-throttles and depressurizes through capillary (or solenoid valve)-one-way valve-filter-two-way valve (outdoor high-pressure pipe)-enters the indoor heat exchanger to absorb heat (realize refrigeration)-outdoor three-way valve (outdoor low-pressure pipe). Complete a single-loop refrigeration cycle.

　　

　　2. Types of components in refrigeration system:

　　

　　The air conditioning refrigeration system is mainly composed of four parts and some auxiliary equipment in the refrigeration system.

　　

　　The four major pieces are:

　　

　　compressor

　　

　　condenser

　　

　　Throttle mechanism

　　

　　Evaporator composition.

　　

　　Auxiliary equipment:

　　

　　Oil separator;

　　

　　Drying filter;

　　

　　Liquid storage tank;

　　

　　Electromagnetic four-way reversing valve;

　　

　　Solenoid valve; Check valve

　　

　　3, the working principle of each component

　　

　　Compressor: As the “heart” of refrigeration system, it has an important influence on the performance, noise, energy consumption, vibration and service life of air conditioning. According to the principle of thermodynamics, it can be divided into volumetric type and velocity type.

　　

　　Volumetric type: a certain volume of gas is sucked into the cylinder and the internal volume of the cylinder is changed to realize gas compression and forced discharge.

　　

　　Speed type: make the inhaled gas get a certain speed, and then slow down, so that kinetic energy can be converted into pressure energy and then discharged. The growth of gas is converted from speed.

　　

　　one

　　

　　Scroll compressor: It is formed by meshing two vortexes of stator and rotor.

　　

　　Rotor compressor: it consists of spindle with eccentric wheel, cylinder, sleeve, air inlet, slide plate, spring, exhaust valve and exhaust port.

　　

　　Condenser: The condenser transfers the refrigerating capacity of the evaporator in the refrigeration system to the environmental medium (cooling water or air) together with the power consumption of the compressor. According to cooling, it can be divided into air-cooled type, water-cooled type and evaporative type. When cooling, it mainly radiates heat to the outside, and when heating, it absorbs heat to the outside.

　　

　　Evaporator: The main function of the evaporator is to boil and evaporate the low-temperature and low-pressure refrigerant liquid that has entered the throttle in the evaporator, absorb the heat of the cooled medium, and then become low-pressure saturated (usually overheated) vapor itself, which is continuously sucked away by the compressor. In other words, the evaporator is a heat exchange device that absorbs heat (that is, outputs cold energy).

　　

　　Throttle element: Throttle element is one of the four main elements in the refrigeration system. Its main function is to throttle and reduce the pressure of high-pressure liquid refrigerant, ensure the pressure difference between condenser and evaporator, and make the refrigerant entering the evaporator absorb heat and evaporate at the required low pressure, thus achieving the purpose of refrigeration and cooling. Adjust the refrigerant flow into the evaporator to adapt to the load change of the evaporator and make the system run normally.

　　

　　Capillary: It is a very thin tube, usually with an inner diameter of 0.5 ~ 2.5 mm and a length of 1 ~ 5 m.. When the refrigerant flows in the tube, it is necessary to overcome the resistance in the tube, which naturally produces a certain pressure drop.

　　

　　Capillary characteristics: Because it is in the normally open state, when the compressor stops, the high and low pressure can be quickly balanced, which is conducive to the compressor starting again. Simple structure, convenient manufacture and low price. For the heat pump system, there is no import and export problem in the throttling process of refrigerant in capillary [this article source: refrigeration encyclopedia WeChat official account” target=_blank>. Using capillary refrigeration system, the performance of the unit is very sensitive to the refrigerant charge. When the operating conditions of the refrigeration system change, the capillary tube has poor ability to adjust the refrigerant flow. Due to the small inner diameter of capillary and long pipeline, it is easy to be blocked, so attention should be paid to the drying and cleaning of the system. Generally, a dry filter is set in front of the capillary to prevent clogging.

　　

　　Thermal expansion valve: the regulating valve that controls the liquid supply of evaporator, and it is also the throttle valve of refrigeration device. Thermal expansion valve uses the change of superheat of refrigerant at evaporator outlet to adjust the flow. According to different structures, it can be divided into internal balance type and external balance type.

　　

　　Disadvantages of thermal expansion valve: low control precision and limited adjustment range. The diaphragm deformation of valve body is limited, which makes the change range of valve needle opening smaller, so the adjustment range of flow is small. When large flow regulation is required, it cannot be met. The high-temperature gas at the place where the signal feedback has a lag evaporator must first heat the shell of the temperature sensor, which has a large thermal inertia, leading to the lag of the reaction.

　　

　　2

　　

　　Electronic expansion valve: the application of electronic expansion valve overcomes the shortcomings of thermal expansion valve and provides conditions for the intelligence of refrigeration device. The electric signal generated by adjusting parameters is mainly used to control the voltage or current applied to the expansion valve, so as to achieve the purpose of adjustment, so that the control system of the electronic expansion valve is complicated and the price is high.

　　

　　Electronic expansion valve classification:

　　

　　Electromagnetic electronic expansion valve;

　　

　　Electric electronic expansion valve.

　　

　　4. Auxiliary equipment of refrigeration system

　　

　　Oil separator: The high-pressure gas (gaseous working medium and lubricating oil) from the compressor enters the oil separator to separate the lubricating oil from the working medium gas and flows down along the inner wall of the cylinder. The working gas is led out of the oil separator from the central pipe through the porous baffle. The separated lubricating oil is concentrated in the lower part of the oil separator and can be discharged regularly, or the lubricating oil can be automatically returned to the crankcase of the compressor by using the ball valve.

　　

　　Drying filter: The function of drying filter is to absorb moisture in refrigeration system, prevent impurities in the system from passing through, and prevent the pipeline of refrigeration system from being blocked by ice and dirt. Because the most easily blocked part of the system is the capillary (or expansion valve), the drying filter is usually installed between the condenser and the capillary (or expansion valve).

　　

　　Liquid storage tank: During the operation of the refrigeration system, the circulating amount of refrigerant in the system will change due to the change of working conditions or the adjustment of refrigeration capacity. Setting the liquid storage tank can balance and stabilize the refrigerant circulation in the system by using the liquid storage capacity of the liquid storage tank, so that the refrigeration system can be in normal operation. In addition, when a component in the refrigeration system fails and needs to be dismantled and repaired, the system refrigerant can be recovered to the liquid storage tank through certain operation methods.

　　

　　The liquid storage tank is generally arranged between the condenser and the throttling element, so that the refrigerant liquid in the condenser can smoothly enter the liquid storage tank. The position of the liquid storage tank should be lower than that of the condenser.

　　

　　Electromagnetic four-way reversing valve: after the electromagnetic coil is energized, it changes the action direction of the valve block in the valve body and changes the flow direction of the refrigerant. So as to achieve the purpose of cooling or heating.

　　

　　three

　　

　　Solenoid valve: Solenoid valve is usually installed in front of the expansion valve to directly control the amount of refrigerant entering the evaporator. It can also be installed before the compressor unloading cylinder to control the unloading of the compressor cylinder.

　　

　　There are two kinds:

　　

　　Direct opening and closing solenoid valve;

　　

　　Indirect solenoid valve.

　　

　　One-way valve: The one-way valve is usually connected in parallel with the auxiliary capillary, and the two are connected in series with the main capillary. One-way valve is a tubular element with a movable spherical or hemispherical plug made of stainless steel or nylon. Combined with capillary tube, it can adapt to two different operating conditions of refrigeration and heating.

　　

　　5. Types and States of Refrigerant

　　

　　Air conditioning refrigerants mainly include R22, R410A and R32.

　　

　　R22 is a medium-temperature refrigerant, with the standard of -40.8 degrees, the solubility of water in R22 is very small, and it is mutually soluble with mineral oil, and R22 does not burn or explode, with little toxicity and strong permeability.

　　

　　R410A is a HFC refrigerant which is composed of R32 and R125 by 50% and 50% by mass. [This article comes from WeChat official account, a refrigeration encyclopedia” target=_blank>, which belongs to a near azeotrope, and its thermodynamic properties are very close to that of a single refrigerant. Compared with R22, R410A’s condensation pressure is increased by 1.6 times, and it is a high-pressure refrigerant, so it is necessary to improve the compression strength of the system.

　　

　　R32 is the abbreviation of difluoromethane, which is a kind of coolant with zero ozone loss potential. It is a gas at room temperature and a colorless and transparent liquid under its own pressure. It is soluble in oil and insoluble in water, and it is an energy-saving and carbon-reducing environment-friendly non-toxic refrigerant, but it is flammable and explosive!

　　

　　6. Refrigerant status

　　

　　Saturated refrigerant: Vapor-liquid conversion in saturated refrigerant is in transport equilibrium, and liquid and gas at this time are in saturation.

　　

　　There is a one-to-one correspondence between saturation temperature and saturation pressure, and the saturation pressure increases with the increase of saturation temperature, and one of them will change and the other will change accordingly. In the system, the refrigerant in the evaporator absorbs heat and the refrigerant in the condenser releases heat, where the refrigerant is saturated.

　　

　　Superheat: Under a certain pressure, the temperature of superheated steam exceeds the saturation temperature.

　　

　　Overheating: the temperature of refrigerant vapor in superheated refrigerant is higher than the saturation temperature under the corresponding saturation pressure, and the liquid refrigerant will overheat after evaporation. In the case of overheating, there is no one-to-one correspondence between the temperature and pressure of refrigerant gas.

　　

　　Near the outlet of the evaporator, the refrigerant continues to absorb heat after complete evaporation and becomes superheated refrigerant with a temperature higher than the saturation temperature. The refrigerant enters the compressor through the suction pipe in case of overheating.

　　

　　Supercooling: The liquid temperature of the supercooled refrigerant is lower than the saturation temperature at the corresponding saturation pressure, and supercooling will only occur when there is no steam in the fluid refrigerant. In the case of supercooling, there is no one-to-one correspondence between the temperature and pressure of refrigerant liquid.

　　

　　Between the outlet of the condenser and the throttle valve, the refrigerant may continue to cool exothermically and become supercooled after condensing into saturated liquid.

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The medical profession in South Korea has been playing a game with the government for more than half a month, the general election is just around the corner, and the doctors’ strike is escalating.

According to Yonhap news agency quoted by the Global Times, 430 professors from Seoul University School of Medicine attended the meeting on the 11th to issue an ultimatum: if the government does not come up with a sincere and reasonable solution to the situation of interns and residents’ collective resignation, all professors will submit their resignations on the 18th. South Korean media commented that the medical front line is likely to fall into greater chaos.

The South Korean government does not intend to compromise, and responded on the 12th, expressing serious concern about this. South Korean President Yoon Yue issued a directive on the 12th, calling for the rapid promotion of health care reform measures, including expanding the enrollment of medical schools, in accordance with the principles.

In addition, the South Korean government has sent license revocation notices to nearly 5000 doctors who refused to return to work, and decided to send 20 military medical officers and 138public health doctors to 20 hospitals from the same day to meet their urgent needs.

With the intensification of aging, the demand for medical resources in Korean society is increasing day by day. The South Korean government announced plans to expand the enrollment of medical students in early February: the enrollment of medical schools in colleges and universities increased from 3058 at this stage to 5058 in the 2025 academic year. According to South Korean health authorities, if the current enrollment scale remains unchanged, there will be a shortfall of 150000 South Korean doctors by 2035.

But the plan to expand enrollment has drawn strong opposition from doctors’ groups and medical students. They believe that the move will lead to excessive health care, strain the funding of the health care system, and lead to a decline in the quality of medical education. Moreover, South Korea lacks the mechanism to regulate the choice of departments for medical graduates, and blindly increases the number of medical students, which will lead to the accumulation of medical resources in big cities. Some medical staff are also worried that the plan to expand enrollment will lead to a reduction in the income of doctors.

Recently, medical professors at a number of South Korean universities are planning to resign collectively. On the 7th of this month, the Emergency response Committee of the Association of professors of Ulsan University Medical College agreed that the professor would submit his resignation on his own. The Association of Professors of Yonsei University School of Medicine set up an emergency response committee on the 12th, and the Association of professors of Cheng Junkuan University School of Medicine held a meeting on the same day. The School of Medicine of Katuli University will meet this week to discuss whether to take collective action.

In response to the possible collective resignation of medical professors, Oval Office officials insisted that since the president demanded rapid progress in accordance with principles, even professors were no exception for collective actions that left the front line of health care in violation of the Medical Law.

As of the 11th, the South Korean government has sent advance notice of administrative sanctions such as revocation of medical licenses to 5556 interns and residents who have left their posts.

Cao Guihong, head of South Korea’s Ministry of Health and Welfare, said at a meeting on the 12th that the decision of the professor’s collective resignation from the Medical College of Seoul University threatened the lives and health of patients, and that the government would do its utmost to maintain the emergency diagnosis and treatment response system and solve the problem of disorder in the medical scene. He called on professors to protect the lives of patients and work with the government to bring outgoing internships and residents back to the medical front line.

On the 12th, the faculty of Seoul University School of Medicine proposed a compromise. They held a press conference in the Korean National Assembly, saying that both the government and the Korean Physicians Association should abandon their inherent position and entrust overseas authorities and institutions recognized by all parties to analyze South Korea’s health and medical indexes. and according to the results of the analysis to decide whether to increase the number of medical school enrollment, at the same time to build a dialogue mechanism with the participation of the government, medical association, government and opposition, national representatives, professors, internships and residents. Formulate practical basic medical, community and public health policies in the coming year.

However, according to Yonhap news agency, an official from the South Korean President’s Office confirmed on the 12th that the plan to expand the enrollment of medical schools by 2000 students a year will not be adjusted. This figure is scientific, and the government’s determination to promote health care reform has not changed.

Less than a month before South Korea’s parliamentary election on April 10, South Korea’s ruling party has regained a lot of support for its policy of expanding enrollment in medical schools. The results of an opinion poll released by Gallup in South Korea on March 8 showed that the good rate of President Yoon Yue’s administration performance was 39%, and the bad rate was 54%. As for the reasons for praise, the answer to the expansion of medical school enrollment accounted for the largest proportion, accounting for 28%, followed by prompt decision, courage and perseverance (9%). According to an opinion poll released by the agency on February 23, Yin Yue’s good evaluation rate was 34%, and the poor evaluation rate was 58%.

For this protracted standoff, some Japanese media commented that the demand for reconciliation in South Korea is growing day by day. Doctors and the government should not be in the boxing ring. People’s patience is disappearing. We must find a way out of this quagmire through dialogue.

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　　The frequency of air conditioning is increasing.

　　

　　Hot summer day

　　

　　Is it advisable to stay in an air-conditioned room for a long time?

　　

　　Do I need to open the window to ventilate the air conditioner?

　　

　　The answer is coming ◎

　　

　　Turning on the air conditioner should not close the doors and windows.

　　

　　A set of experiments will show you.

　　

　　Many people have been in air-conditioned rooms for a long time.

　　

　　I will feel dizzy and sleepy.

　　

　　This may be that the indoor carbon dioxide concentration exceeds the standard.

　　

　　Experts said

　　

　　National standard of indoor carbon dioxide concentration

　　

　　The general requirement is below 1000ppm.

　　

　　For shopping malls, schools and other densely populated places

　　

　　Generally, the concentration of carbon dioxide is required to be below 1500ppm.

　　

　　When the indoor carbon dioxide concentration reaches 2000ppm

　　

　　The human body often feels dizzy and uncomfortable.

　　

　　There are only two or three people in the family.

　　

　　Why does the concentration of carbon dioxide exceed the standard?

　　

　　Two experimenters are in a 13-square-meter bedroom

　　

　　Close the doors and windows and turn on the air conditioner.

　　

　　By placing a good observer

　　

　　Real-time observation of indoor carbon dioxide concentration changes

　　

　　Over time

　　

　　The concentration of carbon dioxide keeps rising.

　　

　　Just half an hour.

　　

　　It has already exceeded 1500ppm.

　　

　　Experts said

　　

　　For the home environment

　　

　　This concentration has exceeded the standard

　　

　　after an hour

　　

　　The concentration of carbon dioxide in the air

　　

　　More than 2000ppm

　　

　　And it’s rising

　　

　　The experimenter opened the window for ventilation.

　　

　　After 15 minutes.

　　

　　Indoor carbon dioxide concentration

　　

　　Slowly dropped below 1000ppm.

　　

　　It can be seen that the doors and windows are closed and the air conditioner is turned on for 1 hour.

　　

　　It may cause the indoor carbon dioxide concentration to exceed the standard.

　　

　　If you sleep in this environment for one night,

　　

　　It is very likely that lack of oxygen will bring health risks.

　　

　　It is recommended to turn on the air conditioner.

　　

　　Open the window properly to get some air.

　　

　　For families that are inconvenient to open windows

　　

　　Consider purchasing a new fan.

　　

　　Instead of window ventilation

　　

　　Air-conditioned rooms should not stay long.

　　

　　Beware of “air conditioning disease”

　　

　　It is hot and hot in summer.

　　

　　Stay in an air-conditioned room for a long time

　　

　　Not only dizziness, headache

　　

　　It may also induce “air conditioning disease”

　　

　　Knowledge of small science popularization

　　

　　”Air-conditioning disease” is a series of diseases induced by long-term use of air conditioning. When using air conditioning, the space is relatively closed, the air is not circulating, pathogenic microorganisms are easy to breed, and the temperature difference between indoor and outdoor is large, so the body is not well adapted, so a series of symptoms will appear.

　　

　　Abdominal pain and diarrhea

　　

　　The stomach and intestines are very sensitive to the stimulation of temperature.

　　

　　Excessive indoor and outdoor temperature difference

　　

　　Accelerated gastrointestinal peristalsis

　　

　　Cause digestive dysfunction

　　

　　Cause abdominal pain and diarrhea

　　

　　catch a cold and have a fever

　　

　　Enter the room with low temperature from the hot outdoor.

　　

　　Easy to catch a cold and cough.

　　

　　Even induce asthma and pneumonia.

　　

　　Serious illness

　　

　　neck shoulder lumbocrural pain

　　

　　Thin clothes in summer

　　

　　Shoulder, knee, waist, etc.

　　

　　Exposed to the cool breeze for a long time

　　

　　It is easy to cause symptoms such as joint and muscle pain.

　　

　　It is easy to cause cervical spondylosis and scapulohumeral periarthritis.

　　

　　cardiac infarction

　　

　　From low temperature indoor to high temperature outdoor.

　　

　　Switch like this

　　

　　Will make blood vessels suddenly contract and expand.

　　

　　Repeated fluctuation of blood pressure may induce myocardial infarction.

　　

　　For the elderly with fragile blood vessels,

　　

　　be highly dangerous

　　

　　How to blow air conditioning healthily?

　　

　　Pay attention to these points!

　　

　　Air conditioning should be cleaned regularly.

　　

　　Whether it’s central air conditioning

　　

　　Or a stand-alone air conditioner at home

　　

　　It should be cleaned before use.

　　

　　It is recommended to clean it once every 1~2 months after use.

　　

　　Window ventilation is essential.

　　

　　Turn on the air conditioner

　　

　　Attention should be paid to frequent ventilation.

　　

　　It is recommended that every 2~3 hours.

　　

　　Just ventilate the room once.

　　

　　Ventilation for 10 to 15 minutes each time.

　　

　　Air conditioning wind blows upward.

　　

　　The temperature should not be too low.

　　

　　Cold air will stimulate sweat pores to contract suddenly.

　　

　　It is easy to cause dizziness, headache, runny nose,

　　

　　Symptoms such as joint pain.

　　

　　It is suggested that the temperature of air conditioner should be adjusted to 26≧

　　

　　The temperature difference between indoor and outdoor should not exceed 7≧

　　

　　When the air conditioner is turned on, the cold air sinks.

　　

　　So the wind had better blow upward.

　　

　　Avoid cold air blowing directly on your body.

　　

　　Drink more warm water.

　　

　　To prevent water loss from the body

　　

　　Causes dry skin and itchy throat.

　　

　　Drink plenty of warm water.

　　

　　Drink chrysanthemum tea, etc

　　

　　Eat more fresh fruits rich in vitamins.

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Seoul, May 15: Comprehensive KCNA News Agency reported that Kim Jong-un, General Secretary of the Workers ‘Party of Korea and Chairman of the State Councilor, has recently continuously inspected the production of important weapons and equipment, and has required military enterprises to complete arms production plans to the letter.

According to a report by the Korean Central News Agency on the 15th, Kim Jong-un learned about the tactical missile weapon system that the country’s missile force will newly install on the 14th, and stressed that all military enterprises must complete this year’s arms production plan to the letter, so that our military’s war preparations can achieve epoch-making changes.

According to previous reports from KCNA, Kim Jong-un also recently inspected cutting-edge precision military equipment production companies and major gun production companies, and learned about the production of the new version of the 240mm rocket launcher vehicle. During this period, he also required important military companies to complete military production plans with high quality.

　　It’s getting hot, and it’s time to turn on the air conditioner. But can you really use air conditioning? Is it only cooling in summer and heating in winter? Air-conditioning remote controllers are generally equipped with a variety of use modes, and different modes have different use effects. Let’s take a look at it.precisely because Puremind Marine Air Conditioners The rapid development of, so also brought new opportunities to the industry. https://puremind.com/puremind-hot-sale/

　　

　　Cool feeling mode

　　

　　Applicable people: afraid of heat and cold.

　　

　　Blowing the air conditioner in summer is cool, because the room temperature is lowered, and because the cold air blown by the air conditioner blows on the body, it plays the role of an electric fan.

　　

　　The principle of the “cool feeling” function is simple: control the angle and speed of the air outlet to prevent the air conditioner from blowing at people-the traditional way is to adjust the angle of the air deflector and the speed of the fan, and the new air conditioner is even equipped with an infrared probe to prevent the wind from blowing directly at people, which is very friendly to people who are afraid of cold stars.

　　

　　Air supply mode

　　

　　Applicable scenario: when it is not too hot

　　

　　Air conditioning is a combination of “cooling/heating+fan”, and the “air supply” function is to turn on the fan instead of starting the compressor, electric heating wire and other temperature-related components of the air conditioning.

　　

　　If you want to improve the air quality, breathe and smell, you need air conditioning with fresh air system.

　　

　　Eco mode

　　

　　Applicable scene: before going to sleep

　　

　　”eco”, the abbreviation of economic, is also called “energy saving” mode.

　　

　　It is suggested that the air conditioner can be changed to this mode before going to bed. When you fall asleep at a comfortable room temperature, the air conditioner will change the temperature, increasing it in summer and decreasing it in winter. In short, it will reduce the power consumption until it is completely turned off, that is, the “sleep” mode.

　　

　　Dehumidification mode

　　

　　Applicable scene: hot and humid weather

　　

　　Both “dehumidification” and “refrigeration” modes will produce refrigeration effect. The difference is that after the “dehumidification” mode is turned on, the air conditioner will appropriately cool the indoor air, let the water vapor condense into water, and then discharge it to the outside-reducing the indoor humidity, and people’s body temperature will be cooler. The main purpose of the “refrigeration” mode is to reduce the indoor temperature, and the water vapor in the condensed air is an incidental effect.

　　

　　From the effect point of view, after opening the “dehumidification” mode, although the air conditioning temperature is not very low and it does not consume too much electricity, it will be more comfortable.

　　

　　It should be noted that this function is only effective in areas with humid climate. If you live in a dry area, this function is not recommended.

　　

　　Automatic mode

　　

　　Applicable people: people who need indoor constant temperature and people who use company air conditioning.

　　

　　To choose this mode, you need to set a temperature first, say 26 degrees Celsius. If the room temperature is lower than 26 degrees Celsius, the air conditioner will start heating; If the room temperature is higher than 26 degrees Celsius, the air conditioner will start to cool.

　　

　　Auxiliary heating mode

　　

　　Applicable scene: when you just enter the house in winter and are about to be frozen.

　　

　　There are two ways to heat by air conditioning. One is a porter who relies on heat-compressor. From the thermodynamic point of view, using compression mechanism to save heat and electricity, but the heating speed is slow, and when it is particularly cold outdoors, such as below 0 degrees Celsius, the heating efficiency will become low.

　　

　　The other is the producer of heat-electric heating wire. “Auxiliary heating” is the option of turning on the electric heating wire, which can assist the compressor to achieve the effect of rapid heating. After the room temperature reaches the set temperature, just keep the temperature by the compression mechanism. At this time, the “auxiliary heating” function can be turned off in order to save electricity.

　　

　　Everyone can use these functions as much as possible. After all, we spent thousands of dollars to buy an air conditioner, and if we don’t drain all its functions, we will lose money!

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According to a report by the Hindustan Times on March 12, a Shine fighter jet of the Indian Air Force crashed near Jaysermer during a combat flight training on the 12th. The pilot ejected and escaped before the crash.

The Indian Air Force said in a statement: During today’s combat flight training, an Indian Air Force Shine fighter plane encountered an accident in Jaysermer. Pilot ejected safely (escape). The Indian Air Force has established a court of inquiry to find out the cause of the accident.

According to Reuters, this was the first such crash since the Korn fighter jet was installed in the Indian Air Force in 2016. An Indian Air Force officer told Reuters that the crash on the 12th broke the aircraft’s safe flight record since its first test flight more than 20 years ago.

The Hindustan Times reported that the Shining Fighter is an Indian-made supersonic aircraft. In 1984, the light fighter plan proposed by the Indian government prompted India to establish the Aviation Development Authority to take charge of its research and development. Hindustan Aviation Limited leads the design and development of this aircraft. (Compiled by Xu Yanhong)

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　　In the highly competitive market for tea sales, packaging plays a crucial role. Not only does it protect your delicate leaves, but it also communicates your brand image and elevates the consumer experience. China is known for its tea culture and manufacturing prowess, and Bowang is a leading supplier of high-quality empty metal tea cans. This guide will help you navigate the Chinese market and find the perfect metal tea cans for your brand.

　　

　　Why Choose Metal Tea Cans?

　　

　　Durability: Metal tin cans provide superior protection against moisture, air, and light, which can effectively preserve the freshness and aroma of tea.

　　

　　Sustainability: Metal tinplate cans are highly recyclable and environmentally friendly materials, in line with the growing demand for sustainable packaging.

　　

　　Branding: Metal tinplate tea canisters provide a premium look and feel, increase the perceived value of tea to customers and enhance your brand image.

　　

　　Key Considerations When Choosing a Supplier

　　

　　Quality Control: Ask suppliers about quality control measures, certifications (e.g., ISO, FDA), and customer reviews.

　　

　　Customization options: Look for suppliers that offer customization options, such as printing, embossing, and unique shapes, to align with your brand identity.

　　

　　Minimum Order Quantity (MOQ): Consider your production needs and suppliers¨ MOQs to avoid unnecessary inventory.

　　

　　Lead time: Discuss production and delivery schedules to ensure timely access to the market.

　　

　　Communication: Choose a vendor with excellent communication and responsiveness to effectively address your concerns and inquiries.

　　

　　Choosing the Right Metal Tea Tin Can

　　

　　Shape and size: Choose a shape and size that complements with your tea type and brand aesthetic. Consider factors such as ease of storage and consumer convenience.

　　

　　Lining: Consider adding a protective lining to prevent oxidation of the tea leaves and maintain freshness.

　　

　　Surface Finishes: Explore a variety of finish options, such as matte, glossy, or metallic finishes, to create a visually appealing tactile experience.

　　

　　By carefully choosing a reputable Bowang tin box factory and choosing the right metal tea cans, you can elevate your tea brand and provide your customers with a quality and memorable experience. Remember to prioritize quality, sustainability, and brand consistency in your decision-making.

　　In today¨s packaging world, tinplate boxes are the perfect blend of functionality and artistry. These versatile containers have been used for centuries not only to protect and preserve their contents, but also to captivate with their aesthetic appeal. The art of tinplate design is a fascinating journey into the confluence of creativity, craftsmanship and utility. In this blog post, we¨ll explore the aesthetics of tinplate box design and how you can use it to boost your brand or personal project.contemporaneity square tea tins Our competitors have not made large-scale improvements, so we should get ahead of everyone in the project. https://tinboxmate.com/

　　

　　The Timeless Appeal of Tinplate

　　

　　Tinplate, a thin sheet metal material coated with tin, is a durable and environmentally friendly material that has been a favorite among packaging enthusiasts since the 19th century. Its malleability allows for complex designs, while its material ensures a long service life. From vintage tea cans to modern luxury gift boxes, tinplate boxes have a unique charm that transcends trends.

　　

　　The Role of Aesthetics in Tinplate Box Design

　　

　　Aesthetics play a crucial role in tinplate box design, as they affect the consumer¨s perception of the product and their desire to buy. A well-designed tinplate box can evoke emotion, tell a story, and leave a lasting impression on consumers. Here are some key elements to consider when exploring the design aesthetic of tinplate boxes:

　　

　　1.Shape and structure

　　

　　The shape of the tinplate box first catches people¨s attention. Whether it¨s a classic rectangular box, a cylindrical jar, or a custom geometric design, the structure sets the foundation for the overall aesthetic. Unique shapes can make your items stand out on the shelf and create a memorable unboxing experience.

　　

　　2.Color and surface finish

　　

　　Color is a powerful tool in design to evoke emotions and convey a brand image. Tinplate boxes can be painted in a variety of colors, from bold and vibrant to pastel. Additionally, finishes such as matte, glossy, or metallic can add depth and texture to enhance the visual appeal.

　　

　　3. Graphics and Typography

　　

　　Illustrations and typography on tinplate boxes are essential to tell the story of the brand. Intricate illustrations, minimalist patterns, or bold logos can convey a brand¨s personality and values. High-quality printing techniques, such as offset or digital printing, ensure that the design is clear and vibrant.

　　

　　4. Texture and Embellishments

　　

　　Adding texture or decoration can enhance the tactile experience of a tinplate box. Embossed or translucent stamps can create a luxurious feel, while laser cutting or perforation can add a touch of sophistication. These details make the box more than just a container, but a work of art.

　　

　　The Intersection of Tradition and Innovation

　　

　　While tinplate design has been rooted in tradition, modern technology has opened up new possibilities for Bowang tin box creativity. Digital design tools, advanced printing technology, and sustainable manufacturing processes enable designers to push the boundaries of difference. The fusion of traditional craftsmanship with innovative technology results in truly unique and captivating designs.

　　

　　Why Tinplate Boxes Matter for Your Brand

　　

　　In a competitive sales market, packaging is often the first point of contact between a brand and its customers. A well-designed tinplate box can enhance customer brand recognition, increase product value, and foster customer loyalty. It¨s not just a container, it¨s a statement.

　　

　　The art of tinplate box design is a celebration of aesthetics, functionality and creativity. By focusing on shapes, colors, graphics, and textures, you can also create packaging that not only protects your product, but also tells a story and leaves a lasting impression. Whether you¨re a brand owner or an aesthetic designer, exploring the aesthetics of tinplate box design is a fantastic journey that combines tradition with innovation.

　　

　　Embrace the art of tinplate box design and let your packaging speak volumes about your brand¨s identity and values. After all, in the world of design, beauty is not just superficial, but more a reflection of craftsmanship and care.

　　In today¨s competitive snack business market, brands need to constantly look for innovative ways to stand out. One packaging solution that has stood the test of time is biscuit tinplate can packaging. Versatile, durable, and aesthetically pleasing, these containers aren¨t just great for storing cookies, they¨re a powerful branding tool that combines nostalgia with modern appeal. Whether you¨re looking for a round tin cookie box, a custom tin box, or a metal gift jar, the cookie tin box offers endless possibilities for businesses looking to elevate their packaging game.precisely because square tea tins The rapid development of, so also brought new opportunities to the industry. https://tinboxmate.com/

　　

　　Why Choose Cookie Tin Boxes?

　　

　　Biscuits have been a staple snack in homes for decades, and for good reason. Tinplate cookie tin cans¨ sturdy metal construction ensures your products stay fresh and protected, while their reusable properties make them a favorite among environmentally conscious consumers. From promotional jar boxes to high-end metal gift jars, these containers are perfect for making a lasting impression.

　　

　　The Versatility of Round Tin Cookie Boxes

　　

　　The round tin cookie box is a classic packaging choice that exudes elegance and charm. Its shape is not only visually appealing, but also practical, making it perfect for wrapping cookies, sweets, teas, and even small gifts. The rounded design makes it easy to stack and store, while the smooth surface provides plenty of room for custom branding. Whether you¨re a small bakery or a large corporation, round canned cookie boxes can help you create a memorable unboxing experience for your customers.

　　

　　Custom Tin Boxes: A Branding Powerhouse

　　

　　In a world where first impressions matter, custom tin boxes offer a unique opportunity to showcase your brand¨s personality. With different customization options, you can choose the size, shape, color, and design that best represents your brand. Add your logo, tagline, or artwork to create a one-of-a-kind packaging solution that resonates with your target audience. Custom tin boxes are more than just containers, they reflect your brand identity and values.

　　

　　Metal Gift Tins: Perfect for Special Occasions

　　

　　Are you still looking for a wrapping solution that doubles as a gift? Metal gift jars are the answer. These jars are perfect for festivals, corporate events, or special promotions. Fill them with cookies, chocolates, or other treats, and you get a gift that¨s both practical and luxurious. The durability of the metal ensures that the jar can be reused long after the contents have run out, making it a sustainable choice for gifting.

　　

　　Promotion Tin Boxes: Boost Your Marketing Efforts

　　

　　If you¨re planning a promotion, a promotional tin box can be a game-changer. These cans are not only eye-catching, but also powerful. Use them to package limited-edition products, freebies, or samples, and watch them become the talk of the town among customers. The reusable nature of the tin box ensures that your brand will remain at the top of people¨s minds long after the sale is over.

　　

　　Biscuit cans are more than just packaging, they¨re a timeless solution that combines functionality, sustainability, and style. Whether you choose a round tin cookie box, a custom tin box, or a metal gift jar, these containers offer endless opportunities to enhance your brand appeal. For businesses looking to make a lasting impression, investing in promotional tin boxes or other metal packaging solutions is a decision that will pay off in the long run.

　　

　　Embrace the charm of the cookie tin box and give your brand the packaging it deserves. After all, in a world where packaging speaks, why not let your brand¨s voice be heard loud and clear? Please contact Bowang tin box factory.

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Washington, March 12 (Reporters Xiong Maoling and Hu Yousong) According to calculations and reports from many mainstream media in the United States, current President Biden confirmed the Democratic presidential nomination for the 2024 U.S. presidential election on the 12th.

Biden won the Democratic primaries in Georgia and Mississippi that day, and more than half of the total number of delegates to this year’s Democratic National Convention has been locked. That means he will be the Democratic presidential candidate again. Biden issued a statement thanking voters for once again letting him represent the Democratic Party, while attacking Republican opponent, former President Trump.

According to calculations by US media, Trump won the Republican primaries in Georgia and Mississippi. He is close to locking in this year’s Republican presidential nomination and is expected to face Biden again in the general election. Biden won the 2020 U.S. presidential election, but Trump refused to admit defeat and claimed large-scale electoral fraud.

On the 12th, primary elections were held in Georgia, Mississippi, Washington and other states and territories. As of press time, the U.S. media have not released the results of primary elections in places other than Georgia and Mississippi.

Trump and Biden recently held respective campaign events in Georgia, attacking each other and kicking off the showdown. The New York Times article wrote: The duel between the two officially begins, which will be a painful, cruel and lengthy competition.

The primary election is the first phase of the U.S. presidential election and will last until June. After the primary election, the Democratic Party and the Republican Party will each hold a national convention to formally nominate the presidential and vice presidential candidates. The polling day for this year’s U.S. election is November 5. (Participating reporter: Sun Ding)