Gas-to-gas full-welding plate type heat exchanger

Abstract

The invention relates to a gas-to-gas full-welding plate type heat exchanger. The gas-to-gas full-welding plate type heat exchanger is that a vertically-positioned quadrate heat transfer plate set module is used as a heat transfer element; dust and impurities of a heat exchange medium, attached on a plate can fall down due to the gravity effect; the surface of the plate is smooth and free of flowing dead area, so that the dust can be conveniently blown away, the daily maintenance and cleaning of the device can be conveniently carried out, and the problem of dust accumulating in the device can be completely solved; the quadrate heat transfer plate set module is pure reversed-flowing corrugated plate; a heat medium and a cold medium purely flows in reversed directions at two sides of the plate; the corrugating part of the plate has the effects of guiding and supporting, besides reinforcing heat transfer; the plate can be overlapped to respectively form a heat medium channel and a cold medium channel at two sides, and the corrugating parts are in contact with each other; the structure of mutual supporting has the effect of improving the plate pressure bearing capacity meanwhile, the device is compact in structure, small in size, and low in manufacturing cost.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a gas-gas fully welded plate heat exchanger, which is suitable for exchanging heat between a high-temperature gas-phase medium and a low-temperature gas-phase medium in petrochemical and other devices to realize heat recovery and utilization. Background technique [0002] At present, gas-gas heat exchangers are mostly heat transfer between two media. For example, common gas-gas heat exchangers include heat pipe type, shell and tube type, heat storage type and plate-fin type. This type of heat exchanger generally has heat exchange Low efficiency, bulky, high equipment cost, large floor area and high investment cost. The existing heat exchanger is easy to accumulate dust, and it is difficult to clean once the dust accumulates. With the development of science and technology, heat exchange equipment using corrugated plates as heat transfer elements has gradually matured. Due to its irreplaceable ...

AI Technical Summary

Problems solved by technology

[0002] At present, gas-gas heat exchangers are mostly heat transfer between two media. For example, common gas-gas heat exchangers include heat pipe type, shell and tube type, heat storage type and plate-fin type. This type of heat exchanger generally has heat exchange Low efficiency, bulky, high equipment cost, large floor area and high investment cost

The existing heat exchanger is easy to accumulate dust, and once the dust accumulates, it is difficult to clean

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