A kind of air compression equipment and its heat exchange system

Abstract

The invention discloses a heat exchange system, which includes a heat exchanger used for heat exchange of compressed gas, a water storage tank connected with the heat exchanger, used to store the condensed water of the heat exchanger, and a water storage tank used for Condensed water is sprayed into the gas inlet section of the heat exchanger to cool down the compressed gas. The invention also discloses an air compression device comprising the above-mentioned heat exchange system. The above-mentioned heat exchange system quickly cools down the compressed gas through the latent heat of evaporation of the condensed water. At the same time, the above-mentioned operation can make the over-dry gas reach the steam saturation state, thereby greatly improving the heat exchange rate, which can further reduce the heat exchange area or reduce the secondary The suction temperature of the compressor can improve the compression efficiency of the compression equipment.

Description

technical field [0001] The invention relates to the technical field of heat exchange equipment, in particular to a heat exchange system. The invention also relates to an air compression device with the heat exchange system. Background technique [0002] Industrial gas sometimes requires higher pressure, therefore, it is necessary to adopt multi-stage compression to gradually increase the pressure of the gas. After each compression, the gas is generally cooled to close to the original temperature by a heat exchanger, and then secondary compression is performed, and as the required pressure increases, the number of stages of the compressor also increases. [0003] Existing heat exchangers mainly include air-cooled and water-cooled types. The air-cooled type is combined with multiple fins on the heat sink, and the fins are used to expand the area of ​​the heat sink that contacts the air, thereby exchanging heat from the heat sink. into the air to achieve the cooling effect of...

AI Technical Summary

Problems solved by technology

However, the heat exchange effect of the existing air-cooled heat exchanger is worse than that of the water-cooled heat exchanger, and the water-cooled heat exchanger is only in contact with the wall surface inside the heat dissipation plate or the heat dissipation pipe due to the flow of the working fluid. The area of ​​conduction flow cannot be effectively increased, resulting in that the heat dissipation effect of heat exchange cannot be effectively further improved

In addition, most of the heat exchangers in the prior art are closed heat exchanges, and the high-temperature gas must exchange heat with the external cooling medium (air or water, etc.) through the tube wall and (or) fins of the heat exchange pipeline. For multi-stage compressors, the low heat exchange rate of the heat exchange equipment will lead to an increase in the heat exchange area or the inability to reduce the suction temperature of the secondary compressor, resulting in low compression efficiency of the compressor

[0004] Therefore, how to avoid the low compression efficiency of the compressor due to the low heat exchange rate is a technical problem to be solved by those skilled in the art

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