Maintenance and repair of refrigeration compressors

Maintenance and repair of refrigeration compressors 1.Pay attention to the oil surface of the oil mirror of the compressor, and ensure that the oil surface is within the range specified by the oil mirror. If the compressor lacks oil, it will cause chain failures such as seizure, shaft wrapping and burning motor. 2.The refrigeration cycle system must be dry under strict conditions. When the seamless steel tube is used as the evaporator, there must be no rust, and no organic compounds, metal impurities, detergents, acids and moisture should be left. 3. The lack of voltage phase, overload, current protection, delay protection, sensitivity and quality of the electrical components of the protection function must be installed in the refrigeration system, which directly affects the life of the compressor. Refrigeration system installation and debugging, the temperature is controlled by the controller and the pressure controller, so that the number of compressors on and off within 1 hour is less than 6 times, one operation is more than 5 minutes, and one stop time is not less than 3 minutes. 4. After the refrigeration system is in operation, pay attention to the oil level in time. The frozen oil should be replaced for the first month after the operation, and once every year thereafter. 5. When the compressor is out of service for a long time, the refrigerant should be recovered into the liquid reservoir, and the exhaust shut-off valve should be closed. 6.Check the power supply voltage and whether the ambient temperature is within the specified range. 7. The volume of non-condensable gas (air and nitrogen) in the refrigeration system does not exceed 2%, and the vacuum cannot be operated by itself. Use a vacuum pump to evacuate the high-pressure end (exhaust valve) of the system for more than 20 minutes. 7.8. Reliability and sensitivity of electrical design control elements, temperature and pressure controllers are reliable and reduce compressor failure.

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06/14/2020

Maintenance and repair of refrigeration compressors

1.Pay attention to the oil surface of the oil mirror of the compressor, and ensure that the oil surface is within the range specified by the oil mirror. If the compressor lacks oil, it will cause chain failures such as seizure, shaft wrapping and burning 器2

06/14/2020

Installation of ammonia refrigeration system in brewery

Installation of ammonia refrigeration system in brewery 1. Installation of ammonia refrigeration compressor unit Installation process flow: basic inspection and treatment of equipment → refrigeration compressor rough flat car → equipment in place → re器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔǅ༬皧奖ི

06/14/2020

Centrifugal compressor2

Centrifugal compressors, also known as turbine compressors, are mainly used to compress gas. They are mainly composed of a rotor and a stator: the rotor includes an impeller and a shaft, and the impeller has blades, a balance disk, and a part of the shaft器2䀀ￜ皥䖒皦즠Ʋ焬क़㲈Ʋ䌁皦ᮔǅ༬皧然क़Ѐ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥

06/14/2020

The structure of the central air conditioner is relatively complicated

The structure of the central air conditioner is relatively complicated. During use, the compressor noise is often accompanied by vibration. The vibration will increase the decibel of the noise, and the two affect each other. However, if the sound of vibra器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔǅ༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ

06/14/2020

Axial compressor

Axial compressors and centrifugal compressors are both speed type compressors and are called turbo compressors. The meaning of speed type compressors is that their working principle relies on the blades to work on the gas, and the flow speed of the gas ca器2䀀ￜ皥䖒皦즠Ʋ焬क़㲈Ʋ䌁皦ᮔǅ༬皧然क़Ѐ呄ᠾ鹨់༹皧ࠄ00령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

06/14/2020

Air-conditioning compressor failure judgment and case analysis

The compressor is the energy core of the air conditioning refrigeration (heat) system. In the refrigeration system, it mainly compresses the refrigerant and promotes the continuous circulation of the refrigeration oil. In the air conditioning system, the 器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔǅ༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령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

06/14/2020

After the Mitsubishi air conditioner is turned on, the indoor compressor does not rotate and cannot be cooled

Fault phenomenon: After a Mitsubishi SRC285cENF air conditioner is turned on, the indoor fan operates normally, and the indoor compressor does not rotate and cannot be cooled.

06/14/2020

Analysis of the causes of air compressor operation failure

The main medium conveyed by the air compressor is air, which provides compressed air to the ventilator, which is the basic condition for keeping the ventilator working normally. The main part of the air compressor is generally composed of driving steam tu器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔǅ༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령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׼識�僬㣢ᐲ臆S㥲ᐲᬄğ識理艏S杴識杴㥲ᐲ

06/14/2020

Is there any difference between refrigeration compressor, air compressor and air pump

Air compressor ≠ refrigeration compressor. Refrigeration compressor: It is a driven fluid machinery that raises the bottom pressure vapor to high pressure vapor. There are many types, such as nitrogen making equipment, refrigerant machine, air compress器2䀀ￜ皥䖒皦즠Ʋ焬क़㲈Ʋ䌁皦ᮔǅ༬皧然क़Ѐ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁

06/14/2020

Two methods of evacuating the refrigeration system

Vacuuming is an indispensable important process before charging refrigerant in the production or maintenance of refrigeration equipment. That is, the process of removing the non-condensable gas and moisture in the system pipeline by connecting the vacuum 器2䀀ￜ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔǅ༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘

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Maintenance and repair of refrigeration compressors

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