CN104930757B - Parallel flow heat exchanger - Google Patents
Parallel flow heat exchanger Download PDFInfo
- Publication number
- CN104930757B CN104930757B CN201510359659.0A CN201510359659A CN104930757B CN 104930757 B CN104930757 B CN 104930757B CN 201510359659 A CN201510359659 A CN 201510359659A CN 104930757 B CN104930757 B CN 104930757B
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- Prior art keywords
- flat tube
- liquid
- tube
- collector
- parallel
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A parallel flow heat exchanger comprises liquid collection devices, liquid distributing devices and a flat tube bundle which is connected with the liquid collection pipes, wherein the liquid collection devices are arranged on the two sides of the flat tube bundle, the liquid distributing devices are connected with the liquid collection devices on the two sides of the flat tube bundle respectively, the liquid collection devices are liquid collection pipes with divided chambers, the liquid distributing devices are liquid distributers or built-in liquid distributing pipes, and a plurality of bundling flat tubes are attached to two ends of the flat tube bundle. According to the parallel flow heat exchanger, two liquid collection devices and two liquid distributing devices are combined, the filling amount of a refrigerant is reduced, flowing of the refrigerant in the flat tubes is facilitated, and the heat exchange efficiency is improved.
Description
Technical field
The present invention relates to a kind of technology of art of refrigeration units, specifically a kind of parallel-flow heat exchanger.
Background technology
At present, for parallel-flow heat exchanger, header is the principal element for influenceing its charging amount.Segmentation afflux tube chamber makes
The design that is incorporated into a header of feed tube and drain pipe can greatly reduce space in header to account for whole system empty
Between ratio, reduce refrigerant charging and then can directly reduce the discharge of refrigerant, increase security of system, be conducive to ring
Protect in border.
In heat transfer process, heating power and the mobility influence of the assignment of traffic heat exchanging device of refrigerant are obvious, on its point
Research with characteristic is also the focus and difficult point of current research.Flow pattern in two-phase flow distributing uniformity and header has very
Important Relations, while also being influenceed by structural parameters, header direction, flat tube intubating length.It has been investigated that, in inlet collecting
Interior barometric gradient clearly, causes to drop very small away from the flat tube pressure at two ends of porch, and rate of flow of fluid is slower, heat exchange property
It is very poor.
Found by the retrieval to prior art, Chinese patent literature CN203785333U, publication date 2014.8.20,
A kind of heat exchanger and air-conditioner are disclosed, including：Left discharge, right discharge with inner chamber and between connect vertically according to
Multiple flat tubes of secondary setting, be provided with each flat tube by the inner chamber of left discharge and right discharge be interconnected it is multiple micro- lead to
Arranged successively along the transverse direction of flat tube road, each microchannel in flat tube；The inner chamber of right discharge includes：Point sap cavity for mutually separating
With liquid collecting cavity, the refrigerant input pipe of point sap cavity, and the refrigerant efferent duct for connecting transfusing chamber are communicated with right discharge；Each leads to
The cross section ovalize in road, and the short-axis direction of the oval cross section of each microchannel and the transverse direction of flat tube are in preset angle
Degree.But microchannel is arranged in order in the technology, there is interval, refrigerant distribution is uneven, and point sap cavity for separating makes with liquid collecting cavity
Refrigerant flow rates are unstable, and space is underused.
The content of the invention
The present invention is directed to deficiencies of the prior art, proposes a kind of parallel-flow heat exchanger, is fitted using end
Flat tube beam, makes refrigerant evenly distributed, the collector tube design of sub-chamber, can reduce the barometric gradient of entrance collector tube, accelerates
Flow velocity, lifts heat exchange property.
The present invention is achieved by the following technical solutions：
The present invention includes：Liquid collector, liquid distributing device and the flat tube beam being connected with liquid collector, wherein：Liquid collector pair
Title is arranged at the both sides of flat tube beam, and liquid collector of the liquid distributing device respectively with flat tube beam both sides is connected.
Described flat tube beam includes：Several parallel flat tubes and fin, wherein：Flat tube two ends are affixed after bending respectively
Close, the intermediate parallel part interval setting of fin and flat tube.
The radial diameter that the end of described flat tube is formed is less than the radial diameter that the parallel portion of flat tube is formed.
Technique effect
Compared with prior art, the present invention uses the flat tube beam of end laminating, the collector tube of interior dispensing channel with built-in point
Liquid pipe and knockout are combined so that refrigerant is evenly distributed in flat tube, reduce charging amount of the refrigerant in collector tube, are improved
Operating efficiency.
Brief description of the drawings
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is collector tube schematic diagram；
Fig. 3 is built-in separating tube schematic diagram；
Fig. 4 is space bar schematic diagram；
Fig. 5 is schematic diagram of the present invention two；
Fig. 6 is knockout schematic diagram；
Fig. 7 is schematic diagram of the present invention three；
In figure：1st, 11,19 and 24 is collector tube, and 2 and 20 is built-in separating tube, and 3 and 22 is space bar, and 4,14 and 21 is flat
Tube bank, 5 is flat tube beam access port, and 6 is built-in separating tube access port, and 7 is a point fluid apertures, and 8 is protrusion, and 9 is separating tube hole, and 10 are
Chamfering, 12 and 18 is knockout, and 13 and 23 is a point sap cavity room, and 15 is liquid-dividing head, and 16 is external separating tube, and 17 is external separating tube
Interface.
Specific embodiment
Embodiments of the invention are elaborated below, the present embodiment is carried out under premised on technical solution of the present invention
Implement, give detailed implementation method and specific operating process, but protection scope of the present invention is not limited to following implementations
Example.
Embodiment 1
As shown in figure 1, the present embodiment includes：Liquid collector, built-in separating tube 2 and the flat tube beam 4 being connected with liquid collector,
Wherein, liquid collector is symmetricly set in the both sides of flat tube beam 4, and built-in separating tube 2 is set in parallel in corresponding liquid collector.
Described flat tube beam 4 includes：Several parallel flat tubes and fin, wherein：Flat tube two ends are affixed after bending respectively
Close, the intermediate parallel part interval setting of fin and flat tube.
The radial diameter that the end of described flat tube is formed is less than the radial diameter that the parallel portion of flat tube is formed.
Described liquid collector includes：Collector tube 1 and several space bars 3, wherein：Collector tube 1 and several space bars 3
Form several chambers.
As shown in Fig. 2 described chamber includes：Point sap cavity room being connected with flat tube beam 4 and the plenum chamber of closing, wherein：
Divide sap cavity room and plenum chamber interval setting.
A described point sap cavity room side is provided with the flat tube access port 5 being connected with flat tube beam 4.
As shown in figure 3, the described side of built-in separating tube 2 is provided with point fluid apertures 7.
Described point fluid apertures 7 is corresponded with described point sap cavity room.
Described adjacent chamber junction is provided with the built-in separating tube access port 6 being connected with built-in separating tube 2.
As shown in figure 4, the butt end of described space bar 3 is conformed with part 8, centre is provided with and described built-in separating tube
The 2 separating tube holes 9 being engaged, both sides are provided with chamfering 10.
Described space bar 3 is pyriform.
Described protrusion 8 is wedge shape.
Internal diameter of the blunt end external diameter of described space bar 3 more than described collector tube 1.
When parallel-flow heat exchanger works, refrigerant enters collector tube 1 from the built-in separating tube 2 of the side of flat tube beam 4, passes through
Point fluid apertures 7 on built-in separating tube 2 enters a point sap cavity room, enters from one end of flat tube beam 4, the other end discharge of flat tube beam 4, enters
Enter point sap cavity room with the collector tube 1 of refrigerant outlet homonymy, import in built-in separating tube 2 and discharge.
Embodiment 2
As shown in figure 5, the present embodiment includes：Collector tube 11, knockout 12 and the flat tube beam 14 being connected with collector tube 11, its
In：Collector tube 11 is symmetricly set in the both sides of flat tube beam 14, and knockout 12 is connected with collector tube 11 respectively.
Several point of sap cavity room 13, the collection of the opposite side of flat tube beam 14 are provided with the collector tube 11 of the described side of flat tube beam 14
The hole being connected with the knockout 12 of homonymy is provided with liquid pipe 11.
A described point sap cavity room 13 is connected with flat tube beam 14 respectively.
Described knockout 12 includes：Liquid-dividing head 15 and several external separating tubes 16, wherein：The one end of external separating tube 16
It is connected with liquid-dividing head 15 respectively, the other end is connected with a described point sap cavity room 13 respectively.
As shown in fig. 6, the described head of liquid-dividing head 15 is provided with the separating tube being engaged with described external separating tube 16 connecing
Mouth 17.
When parallel-flow heat exchanger works, refrigerant enters collector tube 11 from the knockout 12 of the side of flat tube beam 14, passes through
Point sap cavity room 13 enters from one end of flat tube beam 14, the other end discharge of flat tube beam 14, into refrigerant outlet homonymy
Collector tube 11 simultaneously imports corresponding knockout 12.
Embodiment 3
As shown in fig. 7, the present embodiment includes：Collector tube 19, liquid distributing device and the flat tube beam 21 being connected with liquid collector, its
In：Liquid collector is symmetricly set in the both sides of flat tube beam 21, and liquid collector of the liquid distributing device respectively with the both sides of flat tube beam 21 is connected.
Described flat tube beam 21 includes：Several parallel flat tubes and fin, wherein：Flat tube two ends are affixed after bending respectively
Close, the intermediate parallel part interval setting of fin and flat tube.
The radial diameter that the end of described flat tube is formed is less than the radial diameter that the parallel portion of flat tube is formed.
The collector tube 24 of the described side of flat tube beam 21 is provided with several point of sap cavity room 23, if the collector tube 19 of opposite side with
Dry space bar 22 constitutes several chambers.
Described liquid distributing device includes：Knockout 18 or built-in separating tube 20, wherein：Knockout 18 and the phase of collector tube 24
Even, built-in separating tube 20 is set in parallel in collector tube 19.
The described end of flat tube beam 4 laminating, enables multiple flat tubes to be nested in same point of chamber portion, compact conformation.
The described correspondence point of built-in separating tube 2 and 20 sap cavity room is provided with point fluid apertures 7, shunts refrigerant, and the side of flowing
To parallel with the parallel portion of described flat tube beam 4, the flow resistance of refrigerant is reduced.
The chamfering 10 of wedge-shaped projection part 8 and both sides on described space bar 3 and 22 with the composition of collector tube 1 and 19 to dividing
Sap cavity room serves sealing function, and the presence of plenum chamber reduces the charging amount of refrigerant.
A point sap cavity room inside described collector tube 1,11,19 and 24 is connected with built-in separating tube 2,20 or knockout respectively
12nd, 18, the barometric gradient of the arrival end of flat tube beam 4 is reduced, be conducive to lifting heat exchange property.
Claims (3)
1. a kind of parallel-flow heat exchanger, it is characterised in that including：Liquid collector, liquid distributing device and be connected with liquid collector it is flat
Tube bank, wherein：Liquid collector is symmetricly set in the both sides of flat tube beam, liquid distributing device respectively with the liquid collector phase of flat tube beam both sides
Even；
Described flat tube beam includes：Several parallel flat tubes and fin, wherein：Flat tube two ends fit after bending respectively, wing
The intermediate parallel part interval setting of piece and flat tube, the radial diameter that the end of flat tube is formed is formed less than the parallel portion of flat tube
Radial diameter；
Described liquid collector includes：Collector tube and several space bars, wherein：Collector tube forms some with several space bars
Individual chamber, the chamber includes：Point sap cavity room and the plenum chamber of closing with described flat tube Shu Xianglian, wherein：Point sap cavity room with
Plenum chamber interval setting；
Described liquid distributing device includes：Liquid-dividing head and several external separating tubes, wherein：External separating tube one end respectively with a point liquid
Head is connected, and the other end is connected with a described point sap cavity room respectively.
2. parallel-flow heat exchanger according to claim 1, it is characterized in that, one end of described space bar is provided with wedge-shaped projection
Part.
3. parallel-flow heat exchanger according to claim 2, it is characterized in that, described space bar both sides are provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359659.0A CN104930757B (en) | 2015-06-26 | 2015-06-26 | Parallel flow heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359659.0A CN104930757B (en) | 2015-06-26 | 2015-06-26 | Parallel flow heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104930757A CN104930757A (en) | 2015-09-23 |
| CN104930757B true CN104930757B (en) | 2017-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510359659.0A Active CN104930757B (en) | 2015-06-26 | 2015-06-26 | Parallel flow heat exchanger |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111520934A (en) * | 2020-05-18 | 2020-08-11 | 浙江盾安热工科技有限公司 | Heat exchanger and air conditioner with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201488410U (en) * | 2009-08-28 | 2010-05-26 | 周泽生 | Multi-stage shunting condenser |
| CN101782295A (en) * | 2009-01-20 | 2010-07-21 | 三花丹佛斯（杭州）微通道换热器有限公司 | Loop structure of bidirectional microchannel heat exchanger |
| CN203375769U (en) * | 2013-05-31 | 2014-01-01 | 广东美的制冷设备有限公司 | Parallel flow type condenser and air conditioner |
| CN203908123U (en) * | 2014-04-15 | 2014-10-29 | 上海理工大学 | Parallel flow condenser |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3216960B2 (en) * | 1994-09-19 | 2001-10-09 | 株式会社日立製作所 | Outdoor unit and indoor unit of air conditioner and refrigerant distributor used for them |
| JP4023459B2 (en) * | 2004-03-04 | 2007-12-19 | 株式会社デンソー | Heat exchanger |
-
2015
- 2015-06-26 CN CN201510359659.0A patent/CN104930757B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782295A (en) * | 2009-01-20 | 2010-07-21 | 三花丹佛斯（杭州）微通道换热器有限公司 | Loop structure of bidirectional microchannel heat exchanger |
| CN201488410U (en) * | 2009-08-28 | 2010-05-26 | 周泽生 | Multi-stage shunting condenser |
| CN203375769U (en) * | 2013-05-31 | 2014-01-01 | 广东美的制冷设备有限公司 | Parallel flow type condenser and air conditioner |
| CN203908123U (en) * | 2014-04-15 | 2014-10-29 | 上海理工大学 | Parallel flow condenser |
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| Publication number | Publication date |
|---|---|
| CN104930757A (en) | 2015-09-23 |
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