A preheating preheating board for air -changing heat exchanging heat

Abstract

The invention discloses a countercurrent corrugated preheating plate exchanger for air-gas heat exchange, which includes several heat exchange sections, separators, a first inlet pipe, a first outlet pipe, a second inlet pipe and a second outlet pipe, The heat exchange section includes a joint shell and a heat exchange plate. The joint shell is ring-shaped with both ends open, and the two ends of the joint shell are closed with partitions. It is a hot chamber and a cold chamber. The first inlet pipe and the first outlet pipe respectively pass through the wall of the joint shell to connect to the hot chamber, and the second inlet pipe and the second outlet pipe respectively pass through the wall of the joint shell to connect to the cold chamber. The counter-flow corrugated preheating plate exchange also includes rotating parts, and the heat exchange section also includes air valves, which are respectively arranged at the connection between the first inlet pipe, the first outlet pipe, the second inlet pipe, the second outlet pipe and the wall surface of the section shell. At the position, the rotating part penetrates into the heat exchange section and drives the heat exchange plate to slide, and the rotation of the rotating part also drives the air valve to open and close.

Description

technical field [0001] The invention relates to the field of heat exchangers, in particular to a countercurrent corrugated preheating plate exchanger for gas-gas heat exchange. Background technique [0002] A heat exchanger is a commonly used device in industry, which exchanges heat between two-way component media without media contact in order to achieve specific process conditions or heat recovery. [0003] The plate heat exchanger is a relatively efficient heat exchanger. The medium on both sides of the heat exchange plate performs heat exchange through the heat exchange plate, and the heat exchange plate is made thinner. [0004] In the prior art, the effect of the heat exchanger is basically improved by increasing the heat exchange area. Due to the thermal resistance of the heat exchange plate, the temperature difference on both sides is not uniform, and the medium temperature difference on both sides is small. In this case, the heat transfer power drops significantly,...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the effect of the heat exchanger is basically improved by increasing the heat exchange area. Due to the thermal resistance of the heat exchange plate, the temperature difference on both sides is not uniform, and the medium temperature difference on both sides is small. In this case, the heat transfer power drops significantly. Even if the heat transfer area is increased, the heat transfer effect is still limited.

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