Compressor oil cooling system, compressor and refrigeration equipment
A technology for refrigeration equipment and compressors, which is applied in the field of compressors, and can solve problems such as complex external pipelines and insufficient vaporization of refrigerant cooling motors, so as to achieve the effects of reducing external pipelines, preventing suction from carrying liquid, and improving energy efficiency
Pending Publication Date: 2022-01-28
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Problems solved by technology
[0005] In order to solve the problems of complex external pipelines of existing compressors and insufficient vaporization of refrigerant cooling motors, the present invention proposes a compressor cooling oil system, a compressor and refrigeration equipment. The compressor cooling oil system can simplify the compressor external pipelines structure, optimize the anti-seismic performance of the compressor, and make the lubricating oil fully cooled, the refrigerant fully vaporized, and improve the energy efficiency of the compressor
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[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0026] Such as figure 1 , 2 As shown, the present invention proposes a compressor cooling oil system suitable for lubricating oil cooling of compressors, especially centrifugal compressors. Compressor 1 generally has casing 10, motor 11 and oil tank etc., and casing 10 is provided with compression chamber 12 and at least one oil return chamber 13, and motor 11 is installed in casing 10, and the cooling chamber where compressor 1 is located is provided by motor 11. The loop provides power. The main shaft 111 of the motor 11 is supported by a bearing, and the lubr...
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The invention discloses a compressor oil cooling system, a compressor and refrigeration equipment. The compressor oil cooling system comprises at least one oil return cavity, a motor cooling flow channel formed in a machine shell of the compressor, a pre-cooling pipe arranged in the oil return cavity, a pre-cooling drainage branch for guiding a refrigerant flowing out of the motor cooling flow channel to the pre-cooling pipe, and a heat exchange device connected with the pre-cooling pipe and the oil return cavity. A refrigerant flowing out of the pre-cooling pipe and lubricating oil flowing out of the oil return cavity are subjected to heat exchange in the heat exchange device, the pre-cooling drainage branch is arranged on a machine shell of the compressor, and the motor cooling flow channel is further connected with a cooling drainage branch guiding the refrigerant to the heat exchange device. A refrigerant flowing out of the cooling drainage branch and a refrigerant flowing out of the pre-cooling pipe are converged in the heat exchange device. The external pipeline structure of the compressor can be simplified, the anti-seismic performance of the compressor is optimized, lubricating oil can be fully cooled, a refrigerant is fully vaporized, the compressor is prevented from sucking air and carrying liquid, and the energy efficiency of the compressor is improved.
Description
technical field [0001] The invention relates to the technical field of compressors, in particular to compressor cooling oil systems, compressors and refrigeration equipment. Background technique [0002] When the compressor is working, under high-speed conditions, the bearing uses the high-pressure oil film generated by the significant dynamic pressure effect to support the rotating body. Due to the viscosity of the lubricating oil, the oil film consumes mechanical work and heats up during the movement. Especially in the case of high speed and heavy load, the temperature of the oil film will rise to form a non-uniform temperature field, and the temperature rise will cause the viscosity of the lubricating oil to drop, resulting in the formation of a non-uniform viscosity field of the oil film, and the temperature change It will also bring a series of problems such as bearing deformation, which will affect the operating characteristics of the entire shafting. It can be seen t...
Claims
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Login to View More IPC IPC(8): F04D29/58F04D29/063F28D7/00
CPCF04D29/5806F04D29/5826F04D29/063F28D7/00
Inventor 庞晓阳亓静利蒋楠胡铁
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI