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Structure capable of reducing heating effect of air inflow of single-screw compressor

A single-screw compressor and heating effect technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve the problems of reducing energy efficiency of single-screw compressors, heating intake air, etc., to reduce energy consumption and increase intake air Mass flow, reducing the effect of intake air heating

Inactive Publication Date: 2012-07-18
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The star wheel chamber is connected with the intake chamber and has a large flow area. Especially under the high-speed rotation of the star wheel, the high-temperature gas in the star wheel chamber is fully mixed with the intake air, thereby heating the intake air and reducing the single-screw compressor. energy efficiency

Method used

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  • Structure capable of reducing heating effect of air inflow of single-screw compressor
  • Structure capable of reducing heating effect of air inflow of single-screw compressor
  • Structure capable of reducing heating effect of air inflow of single-screw compressor

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Embodiment Construction

[0016] figure 1 It is a typical oil injection lubricated single-screw compressor structure, the intake chamber 3 at the end of the rotor in the casing is open and communicated with the star wheel chambers 4 on both sides, and the volume between the teeth of the screw rotor 6 rotor slots is also directly connected to the The star wheel room is directly connected. The gas in the star wheel chamber is heated by factors such as the casing 8, lubricating oil, and leakage gas, and the temperature is higher than the intake air temperature. The star wheel chamber communicates with the air intake chamber and has a large communication area, especially under the high-speed rotation of the star wheel and its bracket 7, the high temperature gas in the star wheel chamber is fully mixed with the intake air, and the intake air is heated.

[0017] Such as figure 2 As shown, an example of the structure of the present invention is to use the intake partition wall 12 to isolate the communicati...

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PUM

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Abstract

The invention discloses a structure capable of reducing a heating effect of air inflow of a single-screw compressor. The structure is characterized in that an isolation wall surface is arranged in a shell of the single-screw compressor so that an axial air feeding chamber and two planetary wheel chambers of the compressor are isolated, fresh air entering through an air inlet directly enters spaces among teeth of a screw rotor of the single-screw compressor, the situation that preheated air enters the planetary wheel chambers and is compressed in compression volumes is reduced, the inhalation temperature is close to the temperature of environment as far as possible, the air feed mass flow is increased, and the energy consumption is reduced; and in the planetary wheel chambers at two sides, high-pressure lubrication cooling liquid with low temperature is introduced through a nozzle or an injector to reduce the temperature of heated air in the planetary wheel chambers.

Description

technical field [0001] The invention relates to a structure capable of reducing the heating effect of the intake air of a single-screw compressor. Background technique [0002] According to the basic design theory of the compressor, for every 3°C increase in the intake air temperature, the indicated power of the compressor will increase by 1%. Therefore, trying to reduce the temperature of the inhaled gas is an important measure for the compressor to save energy. In the existing single-screw compressors at home and abroad, the screw rotor suction chamber and the star wheel chamber are open to each other, and a large part of the fresh gas sucked into the compressor enters the star wheel chamber, and is absorbed by the high temperature star wheel, high temperature casing and leakage. The high-temperature oil that comes out is heated and then compressed in the compression volume. This reduces the density of the inhaled gas, reduces the mass flow rate, but does not reduce the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/04
Inventor 李健李挺余小玲吴伟烽冯全科
Owner XI AN JIAOTONG UNIV
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