Core body structure for high-pressure-resistant heat exchanger

Abstract

The invention relates to a core body structure for a high-pressure-resistant heat exchanger. The tow ends of a core body are respectively provided with a pair of sealing heads and a plurality of pairs of sealing strips, wherein the sealing strips and the sealing heads are fixedly connected into a whole. The upper side of each sealing strip and the lower side of each sealing strip are fixedly connected with partition plates respectively. The core body structure for the high-pressure-resistant heat exchanger is characterized in that a plurality of reinforcing ribs are evenly distributed between the two sealing strips of each pair of sealing strips, fins are arranged between the reinforcing ribs and between the reinforcing ribs and the sealing strips, the reinforcing ribs and the partition plate arranged on the upper layer and the partition plate arranged on the lower layer are fixedly connected into a whole, and the side wall, fixedly connected with one sealing head, of each sealing strip is provided with a groove. The high-pressure-resistant heat exchanger is simple in structure, high in reliability, and capable of effectively avoiding the leakage, caused by the broken partition plates, of an inner channel.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a core body applied to heat exchangers of large cubic compressors. Background technique [0002] At present, plate-fin heat exchangers have been widely used in the compressor industry, but some large-scale heat exchangers also have shortcomings during use. The temperature difference at the outlet is large, the stress at the end seal of the core body and the partition is concentrated, the thermal deformation is serious, and sometimes even the partition is broken, and the inner channel leaks. In addition, in some high-pressure environments, due to the lack of penetration of the weld seam between the head and the core body, the strength of the weld seam is not enough, and the weld seam will tear when it cannot withstand high pressure, and the product will fail to leak; the seal and the clapboard are welded together, The distance between the fin and the seal is relatively cl...

AI Technical Summary

Problems solved by technology

[0002] At present, plate-fin heat exchangers have been widely used in the compressor industry, but some large-scale heat exchangers also have shortcomings during use. The temperature difference at the outlet is large, the stress concentration at the end seal of the core body and the partition, the thermal deformation is serious, and sometimes even the partition is broken, and the inner channel leaks

In addition, in some high-pressure environments, due to the lack of penetration of the weld seam between the head and the core body, the strength of the weld seam is not enough, and the weld seam will tear when it cannot withstand high pressure, and the product will fail to leak; the seal and the clapboard are welded together, The distance between the fin and the seal is relatively close, and the fin is easy to be burned; in some high-pressure equipment environments, when the product needs to withstand high pressure, the contact surface between the fin and the partition inside the channel is small, so it is easy to be swollen. Crack separation, resulting in product leakage

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