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Air-separation pre-cooling system

A chilled water system and pre-cooling technology, applied in water shower coolers, direct contact heat exchangers, heat exchanger types, etc., can solve problems such as crystal blockage of calcium and magnesium ions, to solve crystal blockage, reduce load and The effect of energy consumption and huge economic benefits

Pending Publication Date: 2018-07-10
安阳九天精细化工有限责任公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of calcium and magnesium ion crystallization blockage in the prior art, thereby providing an air separation precooling system

Method used

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Embodiment 1

[0015] Such as figure 1 As shown, an air separation pre-cooling system, an air cooling tower 10, a chilled water system and a circulating water system, the air cooling tower 10 is provided with a distributor and a gas-water separation device 8 in the middle to separate the air cooling tower into the upper section 1 of the air cooling tower and the air cooling tower In the lower section 2, the chilled water system is used for heat exchange in the upper section 1 of the air cooling tower, and the circulating water system is used for heat exchange in the lower section 2 of the air cooling tower, wherein the distributor and the gas-water separation device are integrated.

[0016] Wherein, the chilled water system includes the upper section 1 of the air cooling tower, the refrigeration pump 4, the refrigeration unit 5, the liquid seal tank 9, and the water cooling tower 3. The outlet of the water cooling tower 3 is connected to the inlet of the refrigerating pump 4, and the outlet of t...

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Abstract

The invention belongs to the technical field of air pre-cooling and discloses an air-separation pre-cooling system. The air-separation pre-cooling system comprises an air cooling tower, a chilled water system and a circulating water system. A distributor and an air-water separation device are arranged in the middle of the air cooling tower to separate the air cooling tower into an air cooling tower upper section and an air cooling tower lower section. The chilled water system is used for conducting heat exchanging on the air cooling tower upper section, and the circulating water system is usedfor conducting heat exchanging on the air cooling tower lower section. A water sealing groove preventing air backflow is additionally arranged outside the air cooling tower, and through the differential pressure, chilled water subjected to heat exchanging is led into the air cooling tower so as to recover the cooling capacity of nitrogen. High-temperature air, washed through circulating water, atthe air cooling tower lower section rises to the air cooling tower upper section to be continuously cooled through the chilled water, and part of water vapor is condensed as supplementary water of the chilled water system. The water quality of the chilled water system in the air-separation pre-cooling system is ensured, and the problem that the content of calcium and magnesium ions in the chilledwater is increased, and thus crystallization plugging occurs to the air-separation pre-cooling system is solved.

Description

Technical field [0001] The invention belongs to the technical field of air pre-cooling, and specifically relates to an air separation pre-cooling system. Background technique [0002] The current process of cryogenic oxygen production air separation pre-cooling system is: circulating water-water cooling tower-refrigeration pump-refrigeration unit-air cooling tower-distributor-circulating pool, because the circulating water contains calcium and magnesium ions, calcium The solubility of magnesium ions decreases with the decrease of temperature. When its concentration is higher than the solubility at this temperature, calcium and magnesium ions will precipitate and block the sieve of the distributor. After the sieve of the distributor is blocked, the air cooling water is not uniformly distributed and the gas and liquid are not sufficient. Heat exchange, air temperature rises, and moisture content in the air increases, which affects the adsorption effect of the molecular sieve of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28C1/00F28F25/00F28F25/02
CPCF28C1/00F28F25/00F28F25/02F28C2001/006F28F2025/005
Inventor 程建军周宏轩徐爱军陈义全刘言信贾艳霞殷颖慧杜刚徐德进刘淑杰刘岭峰贾志远邢璐亮穆盾赵利利
Owner 安阳九天精细化工有限责任公司
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