Novel heat exchanger core

A heat exchanger and core technology, applied in heat exchange equipment, lighting and heating equipment, damage protection, etc., can solve the problems of reduced service life of heat exchanger, uneven cleanliness, fouling, etc. Avoid mixed flow between fluids, good heat exchange effect
CN106440913AActive Publication Date: 2017-02-22AEROSPACE HIWING HARBIN TITANIUM IND
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
AEROSPACE HIWING HARBIN TITANIUM IND
Publication Date
2017-02-22

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Abstract

The invention provides a novel heat exchanger core. The novel heat exchanger core comprises a cover plate, a first heat exchange plate set, a second heat exchange plate set, ..., and a nth heat exchange plate set. The heat exchange plate sets are stacked, the cover plate is stacked on the outer side of the heat exchange plate sets, and each heat exchange plate set comprises more than one same heat exchange plate; each heat exchange plate is composed of a base body and a heat exchange flow passage processed in the base body in a chemical-etching mode, and the projection of flow inlets and flow outlets of different heat exchange plate sets in the direction perpendicular to the heat exchange plates is not overlapped with each other; each heat exchange flow passage is composed of straight flow passage bodies and oval flow passage bodies which are alternately arranged; the straight flow passage bodies are communicated with the oval flow passage bodies; the long axes of the oval flow passage bodies and the center axes of the straight flow passage bodies in the liquid flowing direction are located on the same straight lines; n is a positive integer larger than or equal to three. According to the novel heat exchanger core, the narrowing and widening flow passages are adopted, the flow passages are prevented from being blocked, and the novel heat exchanger core is particularly suitable for the working procedure of cooling natural gas on a sea working platform.
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Description

Technical field

[0001] The invention relates to a new type of heat exchanger core and belongs to the technical field of heat exchange design. Background technique

[0002] At present, micro-channel heat exchangers have been widely used in shipbuilding, automobile, air-conditioning and other industries. Because of their small size and light weight, micro-channel heat exchangers have become an important new direction for heat exchanger research. Due to the narrowness of the microchannel pipes, the cleanliness of the fluid working medium is relatively high. At present, the cleanliness of the fluid working medium used in heat exchangers is different. When the working medium with low cleanliness is used, the internal structure of the flow channel often occurs. Fouling, or the occurrence of blockage due to excessive diameter of particles in the working fluid, reduces the service life of the heat exchanger. Summary of the invention

[0003] In order to solve the above problems, the pres...

Claims

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