Reverse flow type corrugated preheating plate type heat exchanger for gas-gas heat exchange

Abstract

The invention discloses a reverse flow type corrugated preheating plate type heat exchanger for gas-gas heat exchange. The reverse flow type corrugated preheating plate type heat exchanger comprises aplurality of heat exchange sections, partition plates, a first inlet pipe, a first outlet pipe, a second inlet pipe and a second outlet pipe. Each heat exchange section comprises a section shell anda heat exchange plate, the section shell is in an annular shape, two ends of which is opened, two ends of the section shell are closed by the partition plates, a heat exchange plate is arranged in each section shell and slides along the inner wall to partition the section shell into a hot cavity and a cold cavity, the first inlet pipe and the first outlet pipe penetrate the wall surface of each section shell separately to be connected to the hot cavity, and the second inlet pipe and the second outlet pipe penetrate the wall surface of each section shell separately to be connected to the cold cavity. The reverse flow type corrugated preheating plate type heat exchanger also comprises a rotating part. Each heat exchange section also comprises a gas valve, the gas vales are separately arranged at connections of the first inlet pipe, the first outlet pipe, the second inlet pipe and the second outlet pipe and the wall surface of each section shell, the rotating part penetrates into each heat exchange section and drives the heat exchange plate to slide, and the rotating part rotates to further drive the gas 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,...

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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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