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A compressed air method and system with self-precooling function

A compressed air, self-precooling technology, applied in the field of compressed air, can solve the problem of excessively high temperature of the inhaled air, and achieve the effect of reducing moisture content and good operating conditions

Active Publication Date: 2016-08-17
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the traditional air compressor unit, the present invention can not only effectively recover and utilize inter-stage heat, but also cool the air before each stage, thus effectively solving various problems caused by excessively high intake air temperature

Method used

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  • A compressed air method and system with self-precooling function
  • A compressed air method and system with self-precooling function

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Embodiment Construction

[0046] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be noted that the following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0047] Such as figure 1 As shown, this embodiment is a medium-scale air compressor unit. The exhaust pressure of the device is 8.1MPa, and the gas output is 1000Nm 3 / h.

[0048] The device consists of three parts: compressor unit gas circuit subsystem, compressor unit liquid circuit subsystem and absorption chiller subsystem. The main function of the compressor air circuit subsystem is to pre-cool the air to be compressed and to compress the pre-cooled air. The subsystem consists of 4 stages in series, each stage consists of the pre-cooler of the absorption chiller, ...

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Abstract

The invention discloses an air compression method and system with a self-precooling function. According to the method, air is compressed by multi-stage compression and interstage cooling, a cooling medium is used for recycling interstage compression heat and exergy, the recycled heat is used as a heat source, and cooling capacity is generated by an absorption refrigeration method and is used for precooling to-be-compressed air before each stage. The system mainly comprises three parts, i.e., a compressor unit gas circuit subsystem, a compressor unit water route subsystem and an absorption refrigeration machine subsystem. The air compression method and system are particularly suitable for being used in summer or high temperature environment; when the air is compressed by the air compression method and system, the gas production rate of the compressed air can be ensured, the moisture content of the compressed air is reduced, the pressure ratio of a compressor in each stage is increased, and power consumption in the compression process of each stage is obviously reduced; besides, the interstage compression heat and exergy of all the stages are fully utilized, and the energy usage ratio of the system is further improved.

Description

Technical field [0001] The present invention relates to a method and system for compressing air, and in particular to a method and system for compressing air that can reduce the intake air temperature and power consumption of compressors at all levels without providing additional energy. Background technique [0002] The function of an air compressor is a device that compresses air to a certain pressure and is widely used in various fields such as industry and agriculture, transportation, national defense, and daily life. There are many structural forms of air compressors, one of which is a piston compressor unit. At present, a piston compressor unit is usually composed of several stages of compressors and interstage coolers. The function of each stage compressor is to compress the air sucked into the cylinder, and the function of the interstage cooler is to reduce the temperature of the air through the cooling medium, in preparation for entering the next stage compressor for co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B39/06
Inventor 杨征陈海生左志涛陈宗衍谭春青
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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