Micro-channel heat exchanger and flat pipe thereof
A micro-channel heat exchanger and micro-channel technology, applied in the direction of heat exchangers, indirect heat exchangers, tubular elements, etc., can solve the large pressure drop of the working fluid, affect the heat transfer performance of the heat exchanger, and hinder the internal flow of the header. To reduce the pressure drop and improve the heat exchange efficiency
Inactive Publication Date: 2014-04-02
SANHUA(HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO LTD +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the insertion of the flat tube into the header also brings problems. The main problem is that the end of the flat tube inserted into the header hinders the flow of the working fluid in the header, resulting in a large pressure drop of the working fluid, and finally Affect the heat transfer performance of the heat exchanger
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be noted that the embodiments described below are only for the purpose of illustrating the present invention, and are not intended to limit the present invention.
[0017] first refer to attached Figure 1-3 A preferred embodiment of the microchannel heat exchanger of the present invention will be described. In this embodiment, the microchannel heat exchanger includes an upper header, a lower header ( figure 1 One header 2), a plurality of flat tubes 1 (see figure 1 ) and fins (not shown) fixed on the flat tube 1. The flat tube 1 is located between the upper header and the lower header and is perpendicular to them. The opposite sides of the upper header and the lower header are respectively provided with a plurality of parallel grooves 21 corresponding to a plurality of flat tubes 1 (see image 3 ) for the end 12 of the flat tube 1 (see...
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
Login to View More Abstract
The invention provides a flat pipe for a micro-channel heat exchanger. The flat pipe is provided with two end parts suitable to be inserted in a collecting pipe of the micro-channel heat exchanger; a plurality of micro-channels are arranged in the flat pipe; and a lateral wall of at least one end part is provided with a plurality of small holes communicated with the plurality of micro-channels. The lateral wall of the end part of the flat pipe inserted in the collecting pipe is provided with a plurality of small holes along which working mediums in the collecting pipe flow into the micro-channels in each direction rather than converge to flow into the micro-channels from the end surface of the end part of the flat pipe, so the pressure drop of the working mediums is reduced, and heat exchange efficiency of the micro-channel heat exchanger is improved correspondingly. The invention also provides the micro-channel heat exchanger with the flat pipe.
Description
technical field [0001] The invention relates to a heat exchanger, in particular to a microchannel heat exchanger and a flat tube thereof. Background technique [0002] Compared with traditional heat exchangers, microchannel heat exchangers have the advantages of high heat exchange efficiency and less working fluid consumption. As people's requirements for environmental protection and energy conservation are getting higher and higher, micro-channel heat exchangers will be widely used in many industries by virtue of their own advantages, such as air-conditioning industry, automobile industry, and chemical machinery industry. The Chinese patent application whose publication number is CN101298951 discloses such a microchannel heat exchanger. The heat exchanger is composed of an upper header, a lower header, microchannel flat tubes arranged between the upper and lower headers, and fins between adjacent microchannel flat tubes. The two ends of the microchannel flat tube are resp...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F28D1/04F28F1/00
Inventor 刘华钊
Owner SANHUA(HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO LTD