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Refrigeration screw compressor with air suction port in shell shaft seal end

A technology for screw compressors and suction ports, which is applied to parts of pumping devices for elastic fluids, liquid fuel engines, mechanical equipment, etc., which can solve the leakage of refrigerant and lubricating oil and reduce the mechanical life of compressor shaft seals and other problems, to achieve the effect of increasing viscosity, lowering temperature, and reasonable compression process

Inactive Publication Date: 2013-05-15
FUJIAN SNOWMAN COMPRESSOR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the compressor is working, the shaft seal not only bears high pressure, but also bears high temperature. When the compressor of this structure is working, the shaft seal end is prone to leakage of refrigerant and lubricating oil.
Reduced mechanical life of compressor shaft seals

Method used

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  • Refrigeration screw compressor with air suction port in shell shaft seal end

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] Such as figure 1 The schematic diagram of the present invention is shown, and the present invention includes a housing (1), a drive shaft (2), a shaft seal (3), a shaft seal sealing cover (4) and a housing shaft seal end (5), and is characterized in that: An air suction seat (6) is formed on the shaft seal end (5) of the housing, and an air suction port (7) is formed on the air suction seat (6).

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Abstract

The invention relates to an F25B refrigeration machine, a refrigeration device or system class in international patent classification (IPC) through searching, and particularly belongs to a refrigeration screw compressor with an air suction port in a shell shaft seal end. According to the technical scheme provided by the invention, the refrigeration screw compressor comprises a shell (1), a drive shaft (2), a shaft seal (3), a shaft seal cover (4) and a shell shaft seal end (5) and is characterized in that an air suction base (6) is made on the shell shaft seal end (5), and an air suction hole (7) is formed in the air suction base (6). The refrigeration screw compressor has the beneficial effects that the defects of the conventional structure design of the compressor are overcome to ensure that the pressure borne by the shaft seal when the compressor works is reduced, and the temperature is lowered, and thus the temperature of lubricating oil is reduced, the viscosity of the lubricating oil is increased, the lubricating effect of the shaft seal is improved, and the service life of the compressor shaft seal is prolonged.

Description

[0001] technical field [0002] After retrieval, the present invention relates to the category of F25B refrigerator, refrigeration equipment or system on the International Patent Classification (IPC), especially belongs to the refrigeration screw compressor whose suction port is located at the shaft seal end of the shell. Background technique [0003] The suction seat and shaft seal of existing screw compressors are usually located at the two ends of the screw of the compressor respectively. After the low-pressure and low-temperature refrigerant gas is compressed by the screw, the high-temperature and high-pressure gas is discharged from the exhaust port at one end of the shaft seal. This structure compresses The shaft seal of the motor drive shaft is located at the exhaust port of the compressor, where the pressure and temperature are high. When the compressor is working, the shaft seal not only bears high pressure, but also bears high temperature. When the compressor o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C29/12F04D29/02
Inventor 林汝捷魏德强
Owner FUJIAN SNOWMAN COMPRESSOR TECH
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