CN203731744U - Stable parallel flow heat exchanger - Google Patents

Stable parallel flow heat exchanger Download PDF

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Publication number
CN203731744U
CN203731744U CN201320876523.3U CN201320876523U CN203731744U CN 203731744 U CN203731744 U CN 203731744U CN 201320876523 U CN201320876523 U CN 201320876523U CN 203731744 U CN203731744 U CN 203731744U
Authority
CN
China
Prior art keywords
heat exchanger
isosceles trapezoid
parallel
flat tube
adjacent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201320876523.3U
Other languages
Chinese (zh)
Inventor
鲁文龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI JIALONG HEAT EXCHANGER STOCK Co Ltd
Original Assignee
WUXI JIALONG HEAT EXCHANGER STOCK Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WUXI JIALONG HEAT EXCHANGER STOCK Co Ltd filed Critical WUXI JIALONG HEAT EXCHANGER STOCK Co Ltd
Priority to CN201320876523.3U priority Critical patent/CN203731744U/en
Application granted granted Critical
Publication of CN203731744U publication Critical patent/CN203731744U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a stable parallel flow heat exchanger which comprises two collecting mains, multiple flat pipes which are arranged between the two collecting mains and are identical in structure and fins arranged between the adjacent flat pipes. Micro-channels in the flat pipes are communicated with the collecting mains at the two ends. The cross section of each flat pipe is of a first isosceles trapezoid shape. The narrow ends of every two adjacent flat pipes are arranged in a staggered mode, so that the two opposite faces between the two adjacent flat pipes are parallel. According to the technical scheme, separation and horizontal displacement of the fins between the flat pipes can be well prevented, generated condensate water can be discharged along the outer walls of the trapezoidal flat pipes, and performance of the heat exchanger is enhanced.

Description

A kind of firm parallel-flow heat exchanger
Technical field
The utility model relates to field of heat exchangers, relates in particular to a kind of firm parallel-flow heat exchanger.
Background technology
Among air-cooled heat exchanger, parallel-flow heat exchanger is to manifest the equipment that between cold fluid and hot fluid, heat transmits, and is widely used in the fields such as HVAC.Conventionally the basic structure form of parallel-flow heat exchanger is: two headers that are parallel to each other, be arranged on the consistent parallel flat tube of some structures between header, and soldering between adjacent flat tube for the fin of heat exchange.So-called fin is: be arranged on and need to carry out heat exchanger surface, have the heat transfer sheet area that thermal conductivity is strong, increase heat exchanger, improve the sheet metal of the functions such as heat exchange efficiency, fin can be corrugated or venetian blind type.
In prior art, flat tube is to be provided with flat structure passage, even thickness, easily occurs phenomenon, especially some large-scale heat exchangers such as fin disengaging, displacement of welding in use, affects the service behaviour of heat exchanger.
Utility model content
The purpose of this utility model is to propose a kind of firm parallel-flow heat exchanger, can improve heat exchange efficiency, and reduces the phenomenon that fin comes off, is shifted.
For reaching this object, the utility model by the following technical solutions:
A kind of firm parallel-flow heat exchanger, comprise two headers, be arranged on some flat tubes that structure between two headers is identical and be located at the fin between adjacent flat tube, the header at the connection two ends, microchannel in flat tube, the cross section of described flat tube is the first isosceles trapezoid, narrower one end of adjacent two flat tubes is crisscross arranged, so that relative two faces are parallel between adjacent two flat tubes.
Wherein, the waist of described the first isosceles trapezoid and the angle on base are more than or equal to 60 degree and are less than 90 degree.
Wherein, described flat tube comprises some microchannels, and the cross section of each microchannel is all the second isosceles trapezoid, and the waist of described the second isosceles trapezoid is parallel with the waist of the first isosceles trapezoid, and the end of described the second isosceles trapezoid is parallel with the end of the first isosceles trapezoid.
Wherein, the thickness between the waist of described each the second isosceles trapezoid and flat tube outer wall equates, the spacing in same flat tube between adjacent two microchannels equals described thickness.
Wherein, from Dao compare Zhai one end, the wider one end of described flat tube, the geometric sequence that the area of each the second isosceles trapezoid that the cross section of each microchannel is tapers off successively.
Implement the utility model embodiment, there is following beneficial effect:
The utility model embodiment is trapezoidal flat tube by adopting cross section, and the mechanism that is crisscross arranged of narrower one end of adjacent two flat tubes, and the height at the fin two ends between adjacent two flat tubes is equated.Prevented preferably disengaging and the horizontal shift of fin between flat tube, the condensed water that is also conducive to produce is got rid of along trapezoidal flat tube outer wall simultaneously, has strengthened the performance of heat exchanger.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing described below is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the parallel-flow heat exchanger embodiment of the utility model embodiment.
Fig. 2 is the flat tube of parallel-flow heat exchanger and the schematic diagram of fin of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, technical scheme in the utility model embodiment is carried out to clear, complete description, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belongs to the scope that the utility model is protected.
In conjunction with Fig. 1-2, a kind of firm parallel-flow heat exchanger of the utility model embodiment is done to description below.
Comprise two headers 1 at the heat exchanger of the utility model embodiment, be arranged on some flat tubes 2 that structure between two headers 1 is identical and be located at the fin 3 between adjacent flat tube 2, flat tube 2 is provided with some microchannels 4, and microchannel 4 in flat tube 2 is communicated with the header at two ends.Further, in the present embodiment, the cross section of flat tube 2 is the first isosceles trapezoid, and the height of flat tube 2 one sides is greater than the height of flat tube 2 another sides, makes end face and the Jun Cheng inclined plane, bottom surface of flat tube 2.Further, in the present embodiment, a narrower side of adjacent two flat tubes 2 is crisscross arranged, so that relative two faces are parallel between adjacent two flat tubes 2, this structure is conducive to dwindle the overall volume of heat exchanger.
Further, in the present embodiment heat exchanger, the cross section of flat tube 2 is the first isosceles trapezoid, and the waist of this first isosceles trapezoid and the angle on base are more than or equal to 60 degree and are less than 90 degree, are preferably 75 degree.The cross section of each microchannel 4 of described flat tube 2 is all the second isosceles trapezoid, and the waist of described the second isosceles trapezoid is parallel with the waist of the first isosceles trapezoid; The end of described the second isosceles trapezoid, is parallel with the end of the first isosceles trapezoid.
Preferably, in the present embodiment, the wall thickness of each microchannel 4 of flat tube 2 is identical, be that thickness L1 between waist and flat tube 2 outer walls of each the second isosceles trapezoid that in the present embodiment, the each microchannel of flat tube 24 cross sections are equates, spacing L2 in same flat tube 2 between adjacent two microchannels 4 equals described thickness L1, is conducive to microchannel 4 interior stream matchmaker's heat exchange.
As a preferred embodiment of the present utility model, the height of each the second isosceles trapezoid that in the heat exchanger of the present embodiment, the each microchannel of flat tube 24 cross sections are equates, makes the heat transfer effect of heat exchanger more even.
As another preferred embodiment of the present utility model, in the heat exchanger of the present embodiment, from Dao compare Zhai one end, the wider one end of flat tube 2, the geometric sequence that the area of each the second isosceles trapezoid that the cross section of each microchannel 4 is tapers off successively, the i.e. geometric sequence of sequence (S1, S2, S3, S4, S5, S6, S7) for successively decreasing.
The parallel-flow heat exchanger of above-described embodiment, is trapezoidal flat tube by adopting cross section, and the mechanism that is crisscross arranged of narrower one end of adjacent two flat tubes, and the height at the fin two ends between adjacent two flat tubes is equated.Prevented preferably disengaging and the horizontal shift of fin between flat tube, the condensed water that is also conducive to produce is got rid of along trapezoidal flat tube outer wall simultaneously, has strengthened the performance of heat exchanger.
Above disclosed is only the utility model preferred embodiment, certainly can not limit with this claim scope of the utility model, therefore, all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., still belong to the scope that the utility model is contained.

Claims (5)

1. a firm parallel-flow heat exchanger, comprise two headers (1), be arranged on some flat tubes (2) that between two headers (1), structure is identical and be located at the fin (3) between adjacent flat tube (2), microchannel (4) in flat tube (2) is communicated with the header at two ends, it is characterized in that, the cross section of described flat tube (2) is the first isosceles trapezoid, narrower one end of adjacent two flat tubes (2) is crisscross arranged, so that relative two faces are parallel between adjacent two flat tubes (2).
2. parallel-flow heat exchanger according to claim 1, is characterized in that, the waist of described the first isosceles trapezoid and the angle on base are more than or equal to 60 degree and are less than 90 degree.
3. parallel-flow heat exchanger according to claim 2, it is characterized in that, described flat tube (2) comprises some microchannels (4), the cross section of each microchannel (4) is all the second isosceles trapezoid, the waist of described the second isosceles trapezoid is parallel with the waist of described the first isosceles trapezoid, and the end of described the second isosceles trapezoid is parallel with the end of described the first isosceles trapezoid.
4. parallel-flow heat exchanger according to claim 3, it is characterized in that, thickness between the waist of the second isosceles trapezoid that described each microchannel (4) cross section is and flat tube (2) outer wall equates, the spacing in same flat tube (2) between adjacent two microchannels (4) equals described thickness.
5. parallel-flow heat exchanger according to claim 3, is characterized in that, from Dao compare Zhai one end, the wider one end of described flat tube (2), the geometric sequence that the area of the second isosceles trapezoid that each microchannel (4) cross section is tapers off successively.
CN201320876523.3U 2013-12-27 2013-12-27 Stable parallel flow heat exchanger Withdrawn - After Issue CN203731744U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320876523.3U CN203731744U (en) 2013-12-27 2013-12-27 Stable parallel flow heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320876523.3U CN203731744U (en) 2013-12-27 2013-12-27 Stable parallel flow heat exchanger

Publications (1)

Publication Number Publication Date
CN203731744U true CN203731744U (en) 2014-07-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320876523.3U Withdrawn - After Issue CN203731744U (en) 2013-12-27 2013-12-27 Stable parallel flow heat exchanger

Country Status (1)

Country Link
CN (1) CN203731744U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697634A (en) * 2013-12-27 2014-04-02 无锡佳龙换热器制造有限公司 Stable parallel-flow heat exchanger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103697634A (en) * 2013-12-27 2014-04-02 无锡佳龙换热器制造有限公司 Stable parallel-flow heat exchanger
CN103697634B (en) * 2013-12-27 2016-03-23 无锡佳龙换热器股份有限公司 A kind of firm parallel-flow heat exchanger

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140723

Termination date: 20141227

EXPY Termination of patent right or utility model
AV01 Patent right actively abandoned

Granted publication date: 20140723

Effective date of abandoning: 20160323

C25 Abandonment of patent right or utility model to avoid double patenting