Wide-passage and equal-cross-section flow passage spiral plate type cooler

Abstract

The invention discloses a wide-passage and equal-cross-section flow passage spiral plate type cooler, which comprises an inner winding drum body, spiral plates and a plurality of spacing posts, wherein a cooling liquid passage and a hot liquid passage are formed between the spiral plates, the spacing posts are uniformly distributed in the cooling liquid passage and the hot liquid passage, a cold liquid inlet is formed in the top end of the inner winding drum body, a plurality of side wall through holes are formed in a way of surrounding the side wall of the inner winding drum body, the inner winding drum body is communicated with the cooling liquid passage through each side wall through hole, the two adjacent lines of spacing posts are mutually staggered in the cooling liquid passage, and in the hot liquid passage, the distance between two adjacent spacing posts distributed in the length direction of the spiral plates is greater than the distance between the two adjacent spacing posts distributed in the width direction of the spiral plates. The wide-passage and equal-cross-section flow passage spiral plate type cooler has the advantages that the problem of non-tight spiral plate rolling pasting due to hot liquid passage widening is avoided, the cooling liquid turbulent flow effect is enhanced, the total heat transfer coefficient is improved, the stability of the flow speed of the cooling liquid and the hot liquid is ensured, and no dead corner is ensured.

Description

[0001] technical field [0002] The invention relates to the technical field of cooling equipment, in particular to a spiral plate cooler with wide channels and equal cross-section flow channels. Background technique [0003] The cooler is a device that transfers part of the heat of the hot fluid to the cold fluid. It is a general-purpose device widely used in industries such as petroleum, chemical industry, metallurgy, electric power, medicine, food, and urban heating. Usually in petrochemical equipment, it accounts for about 10% to 20% of the total investment, and plays a vital role in the petrochemical production process. [0004] At present, shell-and-tube and plate coolers, which are widely used in the non-ferrous metallurgy industry, occupy a large area and have low heat exchange efficiency; There are many sealing rubber pads, low temperature resistance, easy to corrode, easy to wear, and there are many dead corners in the fully welded plate channel, easy to scale, an...

AI Technical Summary

Problems solved by technology

[0004] At present, shell-and-tube coolers and plate coolers, which are widely used in the non-ferrous metallurgy industry, occupy a large area and have low heat transfer efficiency; The plate is thin (generally 0.5-1.2mm), there are many detachable sealing rubber pads, low temperature resistance, easy to corrode, easy to wear, and there are many dead corners in the fully welded plate channel, easy to scale, and inconvenient to clean, while the spiral plate The characteristics of the cooler are between the two, but the flow rate of the spiral plate is small, the channel cross-section is more and more uneven, and the scope of use is very limited.

[0005] Traditional shell-and-tube coolers widely used in petrochemical

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