Microchannel heat exchanger with shunting modes inside and outside pipe and air conditioner

A technology of micro-channel heat exchangers and flow dividers, which is applied in household heating, household heating, heating methods, etc., can solve the problems of poor heat exchange performance of heat exchangers, uneven distribution of micro-channel heat exchangers, etc. Achieve the effect of improving gas-liquid uniformity, simple structure and processing technology, and good shunting effect

Pending Publication Date: 2020-03-17
GREE ELECTRIC APPLIANCES INC
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention proposes a micro-channel heat exchanger with flow splitting inside and outside the tube, which mainly solves the problems of uneven flow distribution of the micro-channel heat exchanger and poor heat transfer performance of the heat pump air-conditioning system , and the structure and processing technology are simple, the cost is low, and the diversion effect is good

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Microchannel heat exchanger with shunting modes inside and outside pipe and air conditioner
  • Microchannel heat exchanger with shunting modes inside and outside pipe and air conditioner
  • Microchannel heat exchanger with shunting modes inside and outside pipe and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: A microchannel heat exchanger with internal and external flow splitting.

[0025] Such as figure 1 As shown, a microchannel heat exchanger with internal and external flow splitting of tubes includes: a first header 1, a second header 2, flat tubes 3 and fins 4, the first header 1 and the second header The headers 2 are connected through the flat tubes 3, the fins 4 are arranged on the flat tubes 3, and several separation mechanisms are arranged in the first header 1; as Figure 4 As shown, the partition mechanism divides the first header 1 into several first cavities 6, the partition mechanism includes a first partition 7 and a second partition 8, between the first partition 1 and the second partition 8 The second cavity 12 is formed, the first spacer 7 is provided with openings, the second spacer 8 is provided with holes, and the holes are correspondingly arranged close to the pipe wall of the first header 1, and the first cavity 6 is provided with Ther...

Embodiment 2

[0030] Embodiment 2: an air conditioner.

[0031] An air conditioner, comprising an indoor unit and an outdoor unit, the indoor unit and the outdoor unit are connected by pipes, the outdoor unit is provided with a heat exchanger, and the heat exchanger is specifically as described in Embodiment 1 with internal and external shunts microchannel heat exchanger.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a microchannel heat exchanger with shunting modes inside and outside a pipe and air conditioner. The microchannel heat exchanger comprises a first flow collecting pipe, a secondflow collecting pipe, a pipe body and fins, wherein the first flow collecting pipe and the second flow collecting pipe are connected through the pipe body, the fins are arranged on the pipe body, thefirst flow collecting pipe is divided into a plurality of first cavities, an injector hole pipe is formed in each first cavity, a shunting mechanism is arranged at the bottom of the first flow collecting pipe, and a refrigerant enters a plurality of first cavities after being shunted by the shunting mechanism. The two shunting modes outside and inside the pipe are combined, the shunting mechanismis firstly used for shunting outside the first collecting pipe, so that the flow of the refrigerant entering each first cavity is approximately the same, and then the injector hole pipe with an ejection function is used for further shunting inside each first cavity, so that the gas-liquid uniformity of the microchannel heat exchanger is improved, and the heat exchange capacity of the microchannelheat exchanger is improved.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a micro-channel heat exchanger and an air conditioner with internal and external diversion of tubes. Background technique [0002] The micro-channel heat exchanger is a new type of high-efficiency heat exchanger, which has the advantages of high heat transfer efficiency, small size, light weight, and less charge. It has already been popularized and applied in large quantities in outdoor single coolers. The technology of heat pump models is not yet mature, and there are mainly problems such as uneven distribution of gas-liquid two-phase, difficulty in balancing cooling and heating flow paths, and easy frosting when the outdoor unit is used as a heat pump, making it difficult for heat pump micro-channel heat exchangers to enter practical stage. [0003] At present, two ways of shunting outside the pipe or shunting inside the pipe are generally used to solve the problem of ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): F24F13/30
CPCF24F13/30
Inventor康宁李兆宇李潇高彩辰陈华英
OwnerGREE ELECTRIC APPLIANCES INC