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A heat exchanger core

A heat exchanger and core technology, used in heat exchange equipment, lighting and heating equipment, damage protection, etc., can solve the problems of different cleanliness, reduced service life of heat exchangers, and higher requirements for fluid working fluid cleanliness , to achieve the effect of large transmission energy and reduced requirements

Active Publication Date: 2019-03-26
AEROSPACE HIWING HARBIN TITANIUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the narrowness of the microchannel pipes, the cleanliness of the fluid working medium is high. At present, the cleanliness of the fluid working medium used in the heat exchanger is different. When the cleanliness of the working medium is not high, it often occurs Scale, or the diameter of particles in the working fluid is too large and blocked, which reduces the service life of the heat exchanger

Method used

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  • A heat exchanger core
  • A heat exchanger core
  • A heat exchanger core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] combine Figure 1-4 , this embodiment provides a heat exchanger core, including a first fluid heat exchange plate 1 and a second fluid heat exchange plate 2; the first fluid heat exchange plate 1 and the second fluid heat exchange plate 2 alternately Placement; the first fluid heat exchange plate 1 carries the first heat exchange fluid; the second fluid heat exchange plate 2 carries the second heat exchange fluid; the first fluid heat exchange plate 1 and the second fluid heat exchange plate 2 are etched with etching channels 3; the etching channels 3 include heat exchange channels 31 and guide channels 32, wherein: the heat exchange channels 31 include alternately arranged straight channels 311 and elliptical channels 312; 31 communicates with the elliptical flow channel 312; the major axis of the elliptical flow channel 312 and the central axis of the straight channel 311 along the liquid flow direction are on the same straight line; the guide flow channel 32 connects...

Embodiment 2

[0046] The difference between this embodiment and Embodiment 1 is that: the direct flow channel 311 is a parallel channel with a width of 2 mm; the oval flow channel 312 has a major axis of 10 mm and a minor axis of 4 mm; The distance between the central axes of two adjacent heat exchange channels 31 along the fluid flow direction is 3 mm.

Embodiment 3

[0048] The difference between this embodiment and Embodiment 1 is that: the direct flow channel 111 is a parallel channel with a width of 10 mm; the oval flow channel 112 has a major axis of 30 mm and a minor axis of 15 mm; The distance between the central axes of two adjacent heat exchange channels 11 along the fluid flow direction is 15 mm.

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Abstract

The invention discloses a novel heat exchanger core, and belongs to the technical field of machine design. The novel heat exchanger core comprises n first fluid heat exchange plates and m second fluid heat exchange plates. The n first fluid heat exchange plates and the m second fluid heat exchange plates are arranged alternately. The first fluid heat exchange plates carry first heat exchange fluid, and the second fluid heat exchange plates carry second heat exchange fluid. Etching channels are etched in the first fluid heat exchange plates and the second fluid heat exchange plates correspondingly. Each etching channel comprises a heat exchange channel and a guide channel. Each heat exchange channel comprises straight channel bodies and oval channel bodies which are arranged alternately, wherein the straight channel bodies communicate with the oval channel bodies, and the long axes of the oval channel bodies and the center axes, in the fluid flowing direction, of the straight channel bodies are located on the same straight line. The guide channels are connected with the heat exchange channels and extend to the edges of the plates. According to the heat exchanger core, a gradual-contracting and gradual-expanding structure is adopted so that the heat exchanger core can adapt to a using condition with low working medium cleanliness, and the requirement for the cleanliness of fluid working media is lowered.

Description

technical field [0001] The invention relates to a 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 ships, automobiles, air-conditioning and other industries. Due to their small size and light weight, micro-channel heat exchangers have become an important new direction of heat exchanger research and development. Due to the narrowness of the microchannel pipes, the cleanliness of the fluid working medium is high. At present, the cleanliness of the fluid working medium used in the heat exchanger is different. When the cleanliness of the working medium is not high, it often occurs Scale, or the diameter of particles in the working fluid is too large and blocked, which reduces the service life of the heat exchanger. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the present invention provides a heat exchanger c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F3/00F28F19/00
CPCF28F3/00F28F19/00F28F2260/02
Inventor 韩芳明刘俊秀肖波刘莹崔庆龙王文博李雪梅
Owner AEROSPACE HIWING HARBIN TITANIUM IND