MICRON IC Integrated Circuit Chip MT47H128M16RT-25E AIT:C

08/17/2020

Too high or too low oil pressure of industrial chillers affects normal operation

When using industrial chillers, regular inspection and maintenance work is essential. In the absence of basic maintenance and regular inspections, many industrial chillers are prone to different failures.

09/21/2020

Development and application of centrifugal compressor for 10000m3h air separation plant

Since the advent of screw compressors in 1934, after decades of technological improvement, screw compressors have been widely used, especially in refrigeration.

07/21/2020

Ten basic performance parameters of refrigeration compressors (technology sharing)

　　Under a certain working condition, the gas mass delivered from the suction end to the discharge end per unit time is called the compressor mass air delivery under this working condition, and the unit is. If calculated according to the volume of the inhalation state, the volume of the air delivery is, and the unit is then

08/18/2020

Reasons for the high low pressure value of the chiller

In the application of industrial refrigeration, the chiller is used in conjunction with production and processing equipment, so it runs for a long time. If the customer lacks professional maintenance and routine equipment maintenance for the chiller in daily life

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

09/10/2020

Types and characteristics of air compressors and their application choices

Air compressor (English: aircompressor) is the main body of the air source device. It is a device that converts the mechanical energy of the prime mover (usually an electric motor) into gas pressure energy, and is a pressure generating device for compressed air.

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.

07/18/2020

The core heart of the chiller-compressor

Power compressor is indispensable when refrigeration equipment is cooling. Such as chillers, chromatography freezers, ice machines, ultra-low temperature refrigerators, etc., their driving force is the refrigeration compressor, the entire refrigerant cycle is the refrigeration compressor

05/17/2022

Comparison Between Air Cylinder and Electric Cylinder?

As we all know, compared with electric cylinder, air cylinders can work reliably under harsh conditions. And it is easy to operate and basically does not need maintenance.

06/14/2020

Internal balance type thermal expansion valve

Internal balance type thermal expansion valve The internal balance type thermal expansion valve is composed of valve body, push rod, valve seat, valve needle, spring, adjusting rod, temperature sensor, connecting pipe, sensing diaphragm and other compone器