Air inlet cooling system and method of air separation air compressor

A technology of air intake cooling and air compressor, which is applied in energy-saving heating/cooling, mechanical equipment, cold treatment separation, etc., can solve the problems of lack of air compressor consumption reduction, large proportion, etc., and achieve compact design, budget reduction, and load reduction Effect

Active Publication Date: 2020-09-01
陕西秦风气体股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that in the existing air separation unit system flow, the energy consumption of the air compressor accounts for a large proportion of the total energy consumption of the air separation system, but lack

Method used

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  • Air inlet cooling system and method of air separation air compressor
  • Air inlet cooling system and method of air separation air compressor
  • Air inlet cooling system and method of air separation air compressor

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0033] Such as figure 1 , an air-separation air compressor inlet cooling system, comprising an air-separation precooling system lithium bromide unit 1, a surface cooler 2, an air compressor 3, a circulating water system 4 and a hot water type lithium bromide unit 6.

[0034] The heat source inlet of the lithium bromide unit 1 of the air separation precooling system is connected to the heat energy generated by the air separation system unit 7 and the by-product steam of the steel plant 8, wherein the heat energy generated by the air separation system unit 7 is specifically the cooling heat of the steam turbine, the air compressor The interstage compression heat of the nitrogen compressor, the interstage compression heat of the nitrogen compressor, and the interstage compression heat of the argon compressor.

[0035] The steam condensed water produced by the lithium bromide unit 1 of the air separation precooling system enters the hot water type lithium bromide unit 6 as a heat ...

Embodiment 2

[0038] Such as figure 2 , an air-separation air compressor inlet cooling system, comprising an air-separation precooling system lithium bromide unit 1, a surface cooler 2, an air compressor 3, a circulating water system 4 and a hot water type lithium bromide unit 6.

[0039] The heat source inlet of the lithium bromide unit 1 of the air separation precooling system is connected to the heat energy generated by the air separation system unit 7, wherein the heat energy generated by the air separation system unit 7 is specifically the cooling heat of the steam turbine, the interstage compression heat of the air compressor, and the nitrogen compressor. Interstage compression heat and interstage compression heat of argon compressor.

[0040] The steam condensed water produced by the lithium bromide unit 1 of the air separation precooling system enters the hot water type lithium bromide unit 6 as a heat source, and the steam condensed water produced by the hot water type lithium bro...

Embodiment 3

[0043] Such as image 3 , an air-separation air compressor inlet cooling system, comprising an air-separation precooling system lithium bromide unit 1, a surface cooler 2, an air compressor 3, a circulating water system 4 and a hot water type lithium bromide unit 6.

[0044] The heat source inlet of the lithium bromide unit 1 of the air separation precooling system is connected to the by-product steam of the steelmaking plant 8 .

[0045] The steam condensed water produced by the lithium bromide unit 1 of the air separation precooling system enters the hot water type lithium bromide unit 6 as a heat source, and the steam condensed water produced by the hot water type lithium bromide unit 6 enters the condensed water recovery device 5 and then enters the circulating water system 4 .

[0046] The chilled water produced by the lithium bromide unit 1 of the air separation precooling system enters the surface cooler 2 as a cooling medium to cool the air in the surface cooler 2; the...

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Abstract

The invention belongs to an air compressor efficiency-improving and energy-saving system and method, and provides an air inlet cooling system and method of an air separation air compressor in order tosolve the problems of a cooling system that energy consumption of an air compressor occupies a large proportion of total energy consumption of an air separation system, consumption reduction of the air compressor is reduced, and especially the temperature of air entering the air compressor is lowered. The system comprises an air separation pre-cooling system lithium bromide unit, a surface air cooler, the air compressor and a circulating water system. A heat source inlet of the air separation pre-cooling system lithium bromide unit is connected with external heat energy, steam condensate generated by the air separation pre-cooling system lithium bromide unit enters the circulating water system through a condensate recovery device, chilled water generated by the air separation pre-coolingsystem lithium bromide unit enters the surface air cooler to serve as a cooling medium for cooling the air in the surface air cooler, chilled water having exchanged heat in the surface air cooler is recovered to the circulating water system, and cooled air enters the air compressor. The method cools the air entering the air compressor by means of the air separation pre-cooling system lithium bromide unit on the basis of the system.

Description

technical field [0001] The invention belongs to an air compressor efficiency-enhancing and energy-saving system and method, in particular to an air-separation air compressor intake cooling system and method. Background technique [0002] At present, the raw air for the system flow of the air separation unit is provided by the air compressor. The energy consumption of the air compressor accounts for nearly 60% of the energy consumption of the entire system of the air separation system. Therefore, reducing the energy consumption of the air compressor is particularly important for reducing the overall energy consumption of the air separation system. From the comparison of the actual operating conditions of the air compressor in summer and winter, it can be seen that the temperature of the air is very important to the energy consumption of the air compressor, but the existing air compressor still lacks an efficient and energy-saving system that can cool the air . Contents of ...

Claims

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Application Information

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IPC IPC(8): F04B39/06F25J3/04
CPCF04B39/06F25J3/04157F25J3/04018F25J2230/02F25J2270/906F25J2240/70F25J3/04612
Inventor 朱远远武文张群林国彬
Owner 陕西秦风气体股份有限公司
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