Condenser, evaporator operation rules and precautions

1. Operation of the condenser 1) When the refrigeration system is running, all the other valves of the condenser should be opened except the oil drain valve and the air drain valve are closed. 2) The maximum condensing pressure of the water-cooled condenser should not exceed 1.5MPa, otherwise the cause should be found out and eliminated in time. The water supply to the condenser can be stopped only after the compressors are all shut down for 15 minutes. When stopping work for a long time in winter, the stored water should be drained to avoid freezing damage to the equipment.

Condenser cleaning determination, method and operation

"After long-term use of the condenser, it is easy to form scale in the pipeline. If it is not dealt with in time, these scales will affect the heat exchange effect, resulting in an increase in the condensing temperature of the unit, which in turn leads to a decrease in the cooling capacity and an increase in the power consumption of the unit. So the condenser should be descaled frequently.”

Analysis of the status quo of the automotive air-conditioning compressor industry can bring development opportunities

The air-conditioning compressor is an important part of the automobile air-conditioning system. The automobile air-conditioning system is mainly composed of four parts: the compressor, the condenser, the restrictor (expansion device) and the evaporator. The automotive air-conditioning compressor is the heart of the automotive air-conditioning refrigeration system, and is the power source for the refrigerant to circulate in the system. The structure of the condenser and the evaporator is similar. They are a row of curved pipes covered with metal sheets for heat dissipation, which exchange heat with the outside world. The principle is similar to the heat dissipation water tank of the engine. The main function of the expansion valve is to throttle and adjust the refrigerant flow. After the high temperature and high pressure liquid refrigerant is throttled through the expansion valve, the volume becomes larger, and the pressure and temperature of the refrigerant drop sharply.

The size of the impeller of the centrifugal fan determines the working conclusion rate of the machine

Centrifugal fan is a type of fan with relatively high power, that is, with this, it can be used in many fields. Then someone will ask, what does such a centrifugal fan rely on to improve the rate smoothly?

Car air conditioning cleaning and maintenance is good or bad for you to weigh

As the popularity of automobiles increases year by year, the probability of car air conditioners becoming a transmission channel for infectious diseases is also increasing year by year. Every summer, the number of people who replace air conditioners and the infectious diseases transmitted by air conditioner channels is increasing, which seriously endangers people. of health.

How car air conditioners work

The automotive air conditioning and refrigeration system consists of a compressor, a condenser, a liquid receiver dryer, an expansion valve, an evaporator and a blower. The components are connected by copper pipes (or aluminum pipes) and high-pressure rubber pipes to form a closed system. When the refrigeration system is working, the refrigerant circulates in this closed system in different states, and each cycle has four basic processes: 1. Compression process: the compressor sucks the low-temperature and low-pressure refrigerant gas at the outlet of the evaporator, puts it into The gas compressed into high temperature and high pressure is discharged from the compressor. 2. Heat dissipation process: The superheated refrigerant gas of high temperature and high pressure enters the condenser. Due to the decrease of pressure and temperature, the refrigerant gas condenses into liquid and discharges a large amount of heat. 3. Throttling process: After the refrigerant liquid with high temperature and pressure passes through the expansion device, the volume becomes larger, the pressure and temperature drop sharply, and it is discharged from the expansion device in the form of mist (fine droplets). 4. Endothermic process: The mist refrigerant liquid enters the evaporator, so the boiling point of the refrigerant is much lower than the temperature in the evaporator, so the refrigerant liquid evaporates into a gas. During the evaporation process, a large amount of surrounding heat is absorbed, and then the low-temperature and low-pressure refrigerant vapor enters the compressor. The above process is carried out over and over again to achieve the purpose of reducing the air temperature around the evaporator. The functions of automatic air conditioning include automatic adjustment of temperature and humidity in the car, automatic control of return air and supply air modes, and control of operation mode and ventilation volume. The electronic control unit will automatically operate the air conditioning system according to the settings made by the driver or passenger through the buttons on the air conditioning display control panel, and adjust the supply air temperature and air supply speed in time according to the signals input by various sensors. Keep the air environment in the car in the best condition.

Car Air Conditioning | Heaters: Where Does Warmth Come From? ​

You are smiling like a flower in the sunshine in the south; I tremble in the cold winter in the north; your warmth is self-evident, my cold is unparalleled; where is the warmth in winter? In the sun, in the room, and even in the car air conditioner heater. But do you know where this warmth comes from? Ted Car Air Conditioning will analyze the principle of car air conditioning heater, so as to help you use it better.

How to use car air conditioner heater

In the severe winter, many car owners are accustomed to turn on the warm air to warm their hands and feet after getting in the car, creating a warm and comfortable driving environment. However, unlike the use of air-conditioning cold air in summer, the use of warm air, in the opinion of some car owners, either feels ineffective or brings too many side effects, such as "the temperature never rises", "more power consumption", "dry mouth , feeling unwell” is not uncommon. So you need to know more about how to use the heater of the car air conditioner.

How to use the air conditioner in the car correctly?

Correct use of the air conditioner in the car can prolong the service life of the air conditioner. The following is a diagram of the use of the air conditioner in the car.