Heat exchanger

Abstract

The invention discloses a heat exchanger. The heat exchanger comprises a base and a heat exchange assembly, wherein the base is used as a bearing device of the whole heat exchanger; the heat exchange assembly comprises a shell, two heat exchange cores, a medium inlet and a medium outlet; the shell is fixedly welded on the base and is provided with two cavities; the two heat exchange cores are arranged in the cavities of the shell; the medium inlet and the medium outlet is in cyclic circulation with the heat exchange cores; an inner cavity of the shell is divided into a first cavity and a second cavity by a partitioning plate; a gap flow channel is formed between the partitioning plate and the bottom of the shell; the first cavity and the second cavity of the shell are communicated by the gas flow channel; and the two heat exchange cores are respectively and fixedly arranged in the first cavity and the second cavity of the shell. The heat exchanger disclosed by the invention is compact and sealed in structure, capable of switching single or double heat exchange cores, remarkable in the heat exchange effect and is simple and convenient to maintain. The heat exchanger disclosed by the invention also has the advantages of low cost, pressure and corrosion resistance, long service life and the like.

Description

Technical field: [0001] The invention relates to the technical field of heat exchangers, in particular to a heat exchanger with compact structure, sealed structure, switchable single and double heat exchange cores, remarkable heat exchange effect and easy maintenance. Background technique: [0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. There are many types of heat exchangers, but according to the principle and method of heat exchange between cold and hot fluids, they can basically be divided into three categories: partition type, hybrid type and heat storage type. Among the three types of heat exchangers, partition wall heat exchangers are the most widely used. [0003] Common dividing wall heat exchangers include the following: [0004] 1. Jacketed heat exchanger. This kind of heat exchanger is made by installing a jacket on the outer wall of the container, and the structure is simple;...

AI Technical Summary

Problems solved by technology

[0008] 5. Plate heat exchanger, which is a typical partition heat exchanger, is widely used, but the traditional plate heat exchanger has poor sealing and is easy to leak; the gasket needs to be replaced frequently, which is troublesome; the use pressure Subject to certain restrictions; the use temperature is limited by the temperature resistance of the gasket material; it is inconvenient to clean and easy to maintain, so it is gradually eliminated

[0009] The welding technology of the above-mentioned heat exchangers all adopts solder welding, so that there are defects such as insufficient welding, so that the inside of the heat exchanger is not tight, and there is a risk of leakage, which reduces the quality of the heat exchanger

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