End cover and compressor

An end cover and compression device technology, applied in the field of compression, can solve the problems of large oil output of the compressor, unstable oil level, low airflow velocity, etc., to reduce pressure drop loss, improve oil and gas separation efficiency, and reduce resistance to resistance. Effect

Active Publication Date: 2021-05-25
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
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  • Application Information

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Problems solved by technology

However, this kind of centrifugal oil-gas separation space is relatively small, and the separation efficiency is low. Especially when the compressor is running at low frequency, the air velocity is low, and the separation effect is the worst at this time. The oil-gas separation device cannot effectively separate oil and gas, resulting in compression The oil discharge volume of the machine is large, and the oil level is unstable.

Method used

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  • End cover and compressor
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Embodiment Construction

[0024] In order to better understand the purpose, structure and function of the present invention, an end cover and a compressor of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, the compressor of the present invention, the scroll compressor, includes a movable disk and a static disk that are meshed with each other. Compression is performed, and the oil-air mixture enters the separation chamber 12 from the air inlet 14 on the end cover 1 . In the separation chamber 12, the oil and gas separation device separates the oil and gas, and the separated gas is discharged from the exhaust port 111 at one end of the exhaust channel 11, and the separated oil passes through the oil storage tank through the oil return port 112 at the other end of the exhaust channel 11. 13 flows back to the pump body for lubrication.

[0026] In order to adjust the flow rate of the air inlet 14 according ...

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Abstract

The invention discloses an end cover and a and compressor. The end cover comprises an air inlet hole, a compressed oil-gas mixture enters a separation cavity from an air inlet hole to be subjected to oil-gas separation, a speed regulating valve is arranged on the air inlet hole, the speed regulating valve is provided with a valve port connected to the air inlet hole in series, when the frequency of a compression device is reduced, the speed regulating valve shrinks a valve port to increase the flow speed, and after the frequency of the compression device is increased, the speed regulating valve expands the valve port to reduce the resistance. According to the end cover and the compressor, the oil-gas separation efficiency of the compressor under different operation frequencies is improved, so that heat transfer of an evaporator in a refrigerating system is not affected, and an oil film lubrication state is kept among kinematic pair parts in the compressor as well.

Description

technical field [0001] The invention belongs to the field of compression, in particular to an end cover and a compressor. Background technique [0002] Scroll compressors have many advantages such as small size, light weight, continuous and stable suction and exhaust, low vibration, low noise, low energy consumption, etc., and are widely used in air conditioning and refrigeration, power engineering, transportation and other fields. Among them, the electric vehicle air-conditioning scroll compressor is becoming a hot spot and focus of research and development with the vigorous development of electric vehicles. [0003] Existing scroll compressors need to install an oil-gas separator on the exhaust hole to separate the vaporized refrigerating machine oil in the gas or refrigerant. However, this kind of centrifugal oil-gas separation space is relatively small, and the separation efficiency is low. Especially when the compressor is running at low frequency, the air velocity is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/00F04C29/12F04C28/24F04C29/02F04C18/02
CPCF04C29/00F04C29/124F04C28/24F04C29/026F04C18/0215F04C2240/30
Inventor 李业林徐嘉史正良陈晓晓贾波郑慧芸
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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