Danfoss Compressor SH301B7AAP

01/06/2021

How Refrigeration & Air Conditioning Reciprocating Compressors Work?

How Refrigeration & Air Conditioning Reciprocating Compressors Work? Reciprocating Compressors Reciprocating Compressors are one of the most widely used types of compressors for refrigeration and air conditioning applications. The reciprocating compress器2䀀
ￜ皥
䖒皦즠Ʋ㎄ᰙ㲈Ʋ
䌁皦
ᮔDž༬皧㎎ᰙЀ呄ᠾ鹨់༹皧
ࠄ
00령ꐱ댁珵뛐珵Љ
䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ
瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥
ب巠皱㙲皦忈皱੨皦柘皱
즠Ʋǜ勁皦즠ƲبǜV /펔B䌁皦
ᮔDž'鱤džၜ먢䇨珵呈ᠾ뤂ᐱ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲᠾ
랖僧Ҧ識�僬㣢ᐲ臆S㥲ᐲᬄğ識理艏S杴 識杴 

06/14/2020

Several safety protection methods for compressors in industrial chillers

Several safety protection methods for compressors in industrial chillers In industrial chillers, the quality of the compressor determines whether the working efficiency of the chiller is good. At the same time, the compressor also plays an important role器2䀀
ￜ皥
䖒皦즠Ʋ嫜ི㲈Ʋ
䌁皦
ᮔDž༬皧嫦ིЀ呄ᠾ鹨់༹皧
ࠄ
00령ꐱ댁珵뛐珵Љ
䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ
瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥
ب巠皱㙲皦忈皱੨皦柘皱
즠Ʋǜ勁皦즠ƲبǜV /펔B䌁皦
ᮔDž'鱤džၜ먢䇨珵呈ᠾ뤂ᐱ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲᠾ
랖僧ѐ識

09/06/2024

Types of Central ACs and Introduction to Their 18 Components (Part 2)

The function of the evaporator is to use the principle that the liquid low-temperature refrigerant evaporates easily under low pressure, turns into steam and absorbs the heat of the cooled medium to achieve the purpose of refrigeration.

08/11/2020

Selection of cold storage electrical control system and other design considerations

Selection of cold storage electrical control system and other design considerations<br></br> The refrigeration electrical control system is a necessary condition to ensure that the cold storage always automatically works within the set range. Its main work flow includes:

09/07/2020

What should be paid attention to when choosing an adsorption dryer

With the rapid development of China's industrial economy, compressed air has become the second safest energy source after electricity, which is called air source; as compressed air post-processing equipment, dryers have also developed rapidly.

06/29/2020

Several causes of compressor burning

07/13/2020

Danfoss training-scroll compressor

Danfoss medium temperature refrigeration compressor M series Danfoss MLZ/MLM compressors are specially designed for medium temperature refrigeration applications, using a unique scroll design, providing a variety of refrigerant options (R404A, R134a, R507, R22) cooling capacity covers 2 to 10 horsepower.

03/01/2023

The Structure and Basic Working Principle of Air Cylinder

Air cylinder is composed of cylinder barrel, end cap, piston, piston rod, and sealing ring.

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.

06/27/2020

Common faults and solutions of compressors

A compressor is a machine that compresses gas to increase gas pressure or transport gas, and is widely used. In the mining industry, metallurgy industry, machinery manufacturing, civil engineering, petrochemical industry, refrigeration and gas separation engineering, and defense industry, compressors are one of the indispensable key equipment.