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Flue gas heat exchanger beneficial to cleaning

A flue gas heat exchanger and flue gas technology, which is applied in the direction of cleaning heat transfer devices, heat exchange equipment, non-rotating equipment cleaning, etc., can solve the problems of reducing the working efficiency of the flue gas heat exchanger and shutting down.

Active Publication Date: 2019-05-10
北京永安多谱检测科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Although these existing patents all provide highly efficient and easy-to-clean flue gas heat exchangers, their disadvantages are that the cleaning of the flue gas heat exchangers requires shutting down the entire system. No matter how convenient and efficient the cleaning process is, existing The technology still needs to shut down the flue gas heat exchanger more frequently, which reduces the working efficiency of the flue gas heat exchanger

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Embodiment Construction

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] The present invention involves a large number of descriptions of turbulent flow and laminar flow, where both turbulent flow and laminar flow are fluid flow states. The fluid flows in layers and does not mix with each other, which is called laminar flow, also known as steady flow or sheet flow; when the streamlines are no longer clearly discernible, there are many small eddies in the flow field, and the laminar flow is destroyed. There is not only sliding, but also mixing. At this time, the fluid moves irregularly and has a component velocity perpendicular to the axis of the flow tube. This movement is called turbulent flow, also known as turbulent flow, turbulent flow, disturbed flow or turbulent flow. Laminar and turbulent flow can be di...

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Abstract

The invention discloses a flue gas heat exchanger beneficial to cleaning. The flue gas heat exchanger comprises a shell, a flue gas circulation channel is arranged in the shell, the flue gas circulation channel extends along the first direction, and a heat exchange assembly is arranged in the flue gas circulation channel, wherein the heat exchange assembly comprises a plurality of heat exchange plates which are arranged in parallel, each heat exchange plate is internally provided with a liquid flow channel; for the two heat exchange plates which are arranged random and oppositely, at least oneof the two opposite side surfaces is a turbulence flow surface, the turbulent flow surface is a plane, and the turbulence flow surface is parallel to the first direction, a turbulent flow plate is arranged on each turbulence flow surface, and the turbulent flow plates are inclined or vertically arranged in the first direction. According to the flue gas heat exchanger beneficial to cleaning, the turbulent flow surface is parallel to the first direction of the flue gas flowing to reduce the dust accumulation probability of the flue gas; in addition, the air flow can repeatedly impact the heat exchange plates, and the dust accumulation probability of the flue gas is further reduced, the shutdown cleaning times of the flue gas heat exchanger is reduced.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a flue gas heat exchanger which is convenient for cleaning. Background technique [0002] Flue gas heat exchangers are widely used in various chemical fields such as petroleum, coal, and power. They are used to convert the heat energy of high-temperature flue gas generated by combustion into liquid heat energy, such as hot water. Because the dust content in the flue gas is generally high, after a period of use, the flue gas heat exchanger will accumulate dust seriously, and the dust accumulation will cause the heat exchange efficiency of the heat exchanger to drop significantly, ranging from 10% to 20%. , the weight ranges from 30% to 50%, so it is necessary to perform dust removal operations on the flue gas heat exchanger more frequently. [0003] The traditional dust removal operation is shutting down and disassembling, cleaning the dust-accumulated parts in the flue gas heat exchanger an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F3/02F28G1/16
Inventor 丁以瑟
Owner 北京永安多谱检测科技有限公司
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