Danfoss Compressor SH140B3ACI

09/05/2020

Buy screw air compressor You should understand these two points first

When choosing to buy a screw air compressor, users’ main questions are: "How much does it cost to buy a screw air compressor?" But when we asked customers how big a screw air compressor they needed, many customers asked Can't answer.

07/01/2020

Talking about the advantages of compressor enthalpy increasing technology

Talking about the advantages of compressor enthalpy increasing technology The air-jet enthalpy-increasing compressor adopts two-stage throttling intermediate air-jet technology, and uses a flash evaporator to separate gas and liquid to achieve an enthalpy-increasing effect. This compressor jet enthalpy increasing technology has many advantages, as follows:

06/14/2020

What are the models of refrigeration compressors

What are the models of refrigeration compressors As we all know, there are refrigeration compressors in the refrigerators and air conditioners that we commonly use. The core of the air conditioner and refrigerator is it. Whenever it is, the air condition器2䀀
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09/03/2020

Selection of air inlet filter cartridge

The selection of the inlet filter cartridge actually involves many aspects, not only the cartridge itself, but also the entire system design. Therefore, when selecting a filter cartridge, you should refer to the processing air volume, surrounding environment, pre-filtration, etc.:

08/26/2020

Features of scroll refrigeration compressor

Features of scroll refrigeration compressor Advantages of scroll refrigeration compressors:

12/14/2023

Comprehensive Guide to 32 Various Refrigerants (Summary of Characteristics＆ Uses of Commonly Used Refrigerants)

0HFC Series Refrigerants: R134a, R410A, R407C, R417A, R404A, R507, R23, R508A, R508B, R152a

08/24/2020

Where is the safety boundary of cold chain logistics what are the risks How to ensure safety

Following the detection of the new crown virus from the cutting board of imported salmon in Beijing Xinfadi Market, the topic of how the virus is transmitted has become a focus.

06/20/2020

What are the causes of air conditioning trip

What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire. 　　Here are two formulas involved: 　　①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required. 　　② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current. 　　 So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit. 　　 Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle. 　　 2. Leakage 　　During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip. 　　Why does the electric leakage cause the MCB to trip? There are two situations. 　　 ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close. 　　②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open. 　　How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter. 　　 ① Measure the voltage at the input and output to see if there is a significant change in voltage drop. 　　②Measure whether the output current exceeds the standard. 　　 So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.

06/29/2020

Compression ratio of American Copeland compressor

08/09/2020

How to recycle Freon when the air conditioner is moved What should I pay attention to when moving the air conditioner

The price of buying an air conditioner is not low, so many people will definitely remove the air conditioner when moving. When moving the air conditioner, it is necessary to recycle the Freon.