CN104344607A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- CN104344607A CN104344607A CN201310343780.5A CN201310343780A CN104344607A CN 104344607 A CN104344607 A CN 104344607A CN 201310343780 A CN201310343780 A CN 201310343780A CN 104344607 A CN104344607 A CN 104344607A
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- CN
- China
- Prior art keywords
- heat exchanger
- baffle plate
- header
- tube
- ebb interval
- 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.)
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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
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a heat exchanger which comprises a collecting pipe, flat tubes, a fin and a refrigerant distribution device; the flat tubes are distributed in the length direction of the collecting pipe; the fin is positioned between the two lines of flat tubes; the refrigerant distribution device comprises a liquid distribution pipe and a baffle; the baffle is arranged in the length direction of the collecting pipe and divides the interior of the collecting pipe into an upper cavity and a lower cavity; the flat tubes are inserted in the upper cavity of the collecting pipe; the liquid distribution pipe is inserted in the lower cavity of the collecting pipe and penetrates through the collecting pipe in the length direction of the collecting pipe; a liquid outlet allowing a refrigerant to be fed into the lower cavity is formed in the side wall of the liquid distribution pipe; a flowing clearance is formed between one side in the width direction of the baffle at least and the pipe wall of the collecting pipe; the refrigerant flows out through the liquid outlet and enters the upper cavity through the flowing clearance. After flowing through the liquid outlet, the refrigerant is well mixed in the lower cavity and then enters the upper cavity through the flowing clearance, so that the technical problem in the prior art that a perforated plate or a perforated pipe is used, and after the refrigerant flows out through the perforated plate, secondary liquid distribution is non-uniform can be solved. The invention is applied to the field of air-conditioning heat exchangers.
Description
[technical field]
The present invention is applied to air-condition heat exchanger field, is specifically related to a kind of heat exchanger.
[background technology]
As shown in Figure 1, publication number is in the U.S. Patent application of US_20100089559_A1, disclose a kind of mode at header interpolation distributing pipe and solve cold-producing medium assignment problem, distributing pipe has aperture, cold-producing medium is flowed out through aperture by distributing pipe again, but because flow of refrigerant has inertia, several aperture flows near entrance side can be less than several aperture flows below by the cold-producing medium impact of inertial flow backward, caliber is less, flow velocity is larger, suffered inertia effects is larger, and limit by processing cost, aperture limited amount on distributing pipe, cold-producing medium is difficult to flow in every root flat tube uniformly after outflow aperture, there is the uneven problem of secondary distribution.Application number is in the Chinese patent document of CN200910002438.2, disclose and insert a porous plate in header, header is separated into upper and lower two cavitys, as shown in Figure 2, this structure due to header lower chamber volume larger, therefore refrigerant flow rates is low, effect of inertia is little, but the local flow velocity of entrance is larger, therefore the aperture place refrigerant flow near entrance is little, and aperture faces flat tube on porous plate, equally due to aperture limited amount, also there is the uneven problem of secondary separatory in cold-producing medium after outflow porous plate.
[summary of the invention]
Problem to be solved by this invention is just to provide can a kind of heat exchanger of uniform distribution refrigerating fluid.
For solving the problems of the technologies described above, the present invention adopts following technical scheme, a kind of heat exchanger, comprise header, flat tube, fin and refrigerant distributing device, described flat tube is along header lengths directional spreding, described fin is between adjacent two row flat tubes, refrigerant distributing device comprises separating tube and baffle plate, described baffle plate arranges along header lengths direction and is epicoele and cavity of resorption by header interior separation, described flat tube inserts the epicoele of header, separating tube inserts header cavity of resorption and runs through header along header lengths direction, the pipe sidewall of separating tube is provided with the fluid hole leading to cold-producing medium to cavity of resorption, at least formed ebb interval between the side in barrier width direction and header tube wall, cold-producing medium is flowed out by fluid hole and passed through ebb interval and enters epicoele.
Further, described heat exchanger is vertically installed, and the both sides of described separating tube are respectively provided with baffle plate, and the baffle plate of separating tube both sides all and between header tube wall formed ebb interval;
Or described heat exchanger is vertically installed, the both sides of described separating tube width are provided with baffle plate, wherein form ebb interval between the baffle plate of side and header tube wall.
Further, the fluid direction of described fluid hole is consistent with gravity direction.
Further, heat exchanger is vertically installed, and described baffle plate is arranged at above separating tube, and baffle plate both sides all and between header tube wall formed ebb interval;
Or heat exchanger is vertically installed, described baffle plate is arranged at above separating tube, and baffle plate wherein formed ebb interval between side and header tube wall.
Further, described heat exchanger tilts to install, and the both sides of described separating tube are respectively provided with baffle plate, and the baffle plate of separating tube both sides is obliquely installed and is arranged on differing heights place, the windward side baffle plate of heat exchanger is installed lower, wherein forms ebb interval between the baffle plate that sets low of installation position and header tube wall.
Further, the baffle plate that sets high near installation position of described fluid hole.
Further, described heat exchanger tilts to install, and described baffle plate is obliquely installed above separating tube, and the windward side baffle plate of heat exchanger is installed lower, forms ebb interval between the low level side in barrier width direction and header tube wall.
Further, described fluid hole is near the high-order side in barrier width direction.
Further, at least the side in barrier width direction does not contact with header tube wall, crosses ebb interval to form continuous print;
Or at least the side in barrier width direction touches header tube wall and arranges some breach in this compartment of terrain, side, to form interrupted ebb interval excessively.
Further, the described width crossing ebb interval is 0.5mm ~ 5mm.
Beneficial effect of the present invention:
Heat exchanger of the present invention, cold-producing medium, after the fluid hole ejection on separating tube, collides with afflux tube wall, flows to flat tube after mixing by overcurrent gap uniformity.Because baffle plate does not have perforate, cold-producing medium is subject to baffle after separating tube ejection, directly do not flow to flat tube, but flow to flat tube along crossing ebb interval, eliminate effect of inertia, run through whole header owing to crossing ebb interval simultaneously, therefore improve the discharge uniformity that header inner refrigerant flows to flat tube.
These features of the present invention and advantage will detailed description of the invention below, exposure detailed in accompanying drawing.
[accompanying drawing explanation]
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 and Fig. 2 is cold-producing medium distribution structure schematic diagram in prior art;
Fig. 3 is embodiment one structural representation of a kind of heat exchanger of the present invention;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the refrigerant distributing device schematic diagram in Fig. 3;
Fig. 6 is embodiment two structural representation of a kind of heat exchanger of the present invention;
Fig. 7 is embodiment three structural representation of a kind of heat exchanger of the present invention;
Fig. 8 is embodiment four structural representation of a kind of heat exchanger of the present invention;
Fig. 9 is embodiment five structural representation of a kind of heat exchanger of the present invention;
Figure 10 is embodiment one structural representation of the baffle plate in the present invention;
Figure 11 is embodiment two structural representation of the baffle plate in the present invention.
[detailed description of the invention]
The invention provides a kind of heat exchanger, comprise header, flat tube, fin and refrigerant distributing device, described flat tube is along header lengths directional spreding, described fin is between adjacent two row flat tubes, refrigerant distributing device comprises separating tube and baffle plate, described baffle plate arranges along header lengths direction and is epicoele and cavity of resorption by header interior separation, described flat tube inserts the epicoele of header, separating tube inserts header cavity of resorption and runs through header along header lengths direction, the pipe sidewall of separating tube is provided with the fluid hole leading to cold-producing medium to cavity of resorption, at least formed ebb interval between the side in barrier width direction and header tube wall, cold-producing medium is flowed out by fluid hole and passed through ebb interval and enters epicoele.Cold-producing medium, after the primary distribution of the fluid hole on separating tube and the secondary distribution of mistake ebb interval, flows into epicoele and also enters flat tube, therefore improve the discharge uniformity that header inner refrigerant flows to flat tube.
The technical scheme of accompanying drawing to the embodiment of the present invention below in conjunction with the embodiment of the present invention is explained and illustrated, but following embodiment is only the preferred embodiments of the present invention, and not all.Based on the embodiment in embodiment, those skilled in the art under the prerequisite not making creative work obtain other embodiments, all belong to protection scope of the present invention.
Embodiment one:
With reference to Fig. 3 to Fig. 5, for a kind of heat exchanger of the present invention, comprise header 1, flat tube 2, fin 3 and refrigerant distributing device, described flat tube 2 distributes along header 1 length direction, described fin 3 is between adjacent two row flat tubes 2, refrigerant distributing device comprises separating tube 4 and baffle plate 5, described baffle plate 5 arranges along header 1 length direction and is epicoele 11 and cavity of resorption 12 by header 1 interior separation, described flat tube 2 inserts the epicoele of header, separating tube 4 inserts header cavity of resorption and runs through header 1 along header 1 length direction, the pipe sidewall of separating tube 4 is provided with fluid hole 41, heat exchanger is vertically installed, the both sides of described separating tube 4 width are respectively provided with baffle plate 5, the baffle plate 5 of separating tube both sides all and between header 1 tube wall formed ebb interval 51, the fluid direction of described fluid hole 41 is consistent with gravity direction.After cold-producing medium sprays straight down along fluid hole 41, successively with the diapire of header 1, sidewall and baffle plate collide fully, after mixing, ebb interval 51 of crossing along both sides passes into epicoele 11, because the refrigerant inlet position distribution of flat tube is at the zone line of header 1 epicoele 11, cross the fringe region that ebb interval 51 is positioned at epicoele 11, thus cold-producing medium is just from when ebb interval 51 passes into epicoele excessively, also the fringe region of epicoele is positioned at, in epicoele 11, cold-producing medium flows into the process of flat tube from crossing ebb interval 51, in fact also there is the Homogenization Process of cold-producing medium, from first and last, through said process, cold-producing medium passes into flat tube after fully mixing, optimize the serviceability of heat exchanger.
Embodiment two:
Please refer to Fig. 6, the difference of the present embodiment is: heat exchanger is vertically installed, the both sides of described separating tube 4 width are provided with baffle plate 5, wherein formed ebb interval 51 between the baffle plate 5 of side and header 1 tube wall, this side is the windward side of heat exchanger, in figure, the direction of arrow is wind direction, windward side is arranged on owing to crossing ebb interval 51, the microchannel pore in the flat tube 2 of side, windward side is made to be assigned to more cold-producing mediums compared to the microchannel pore of the flat tube 2 away from side, windward side, and the heat exchange efficiency of windward side cold-producing medium is higher than leeward side cold-producing medium, therefore improve the heat exchange efficiency of heat exchanger entirety.The fluid direction of described fluid hole 41 is consistent with gravity direction.In addition, the fluid direction of fluid hole 41 can also be other directions, as: the air line distance that liquid outlet 41 has been ebb interval is maximum, and now, cold-producing medium is through-flow distance, is conducive to abundant mixing.
Embodiment three:
Please refer to Fig. 7, the difference of the present embodiment is: heat exchanger is vertically installed, described baffle plate 5 is arranged at above separating tube 4, and baffle plate 5 both sides all and between header 1 tube wall formed ebb interval 51, and the fluid direction of described fluid hole 41 is towards ten o'clock direction, in addition, the fluid direction of fluid hole 41 can also be other directions, and preferably liquid outlet 41 has been the air line distance of ebb interval is maximum, now, cold-producing medium is through-flow distance, is conducive to abundant mixing.
Embodiment four:
Please refer to Fig. 8, the difference of the present embodiment is: described heat exchanger tilts to install (in actual use, heat exchanger understands slant setting usually, is beneficial to draining),
2 length directions are horizontal by α angle, the both sides of described separating tube 4 are respectively provided with baffle plate 5, the baffle plate 5 of separating tube 4 both sides is obliquely installed and is arranged on differing heights place, the windward side baffle plate 5 of heat exchanger is installed lower, wherein forms ebb interval 51 between the baffle plate 5 that sets low of installation position and header tube wall.The baffle plate that described fluid hole 41 sets high near installation position, cold-producing medium is due to self gravitation reason, more easily can evenly flow to flat tube 2 from the gap of baffle plate 5 header, little flow resistance, meanwhile, cold-producing medium flows into raw gas-liquid separation after header 1 through fluid hole 41, have the cold-producing medium A of gas bag and pure liquid refrigerant B two states, due to Action of Gravity Field, pure liquid refrigerant B preferentially evenly flows into flat tube from the gap of baffle plate and header, optimizes heat transfer effect.Simultaneously, this side is the windward side of heat exchanger, in figure, the direction of arrow is wind direction, windward side is arranged on owing to crossing ebb interval 51, the microchannel pore in the flat tube 2 of side, windward side is made to be assigned to more cold-producing mediums compared to the microchannel pore of the flat tube 2 away from side, windward side, and the heat exchange efficiency of windward side cold-producing medium is higher than leeward side cold-producing medium, therefore improve the heat exchange efficiency of heat exchanger entirety.
Embodiment five:
Please refer to Fig. 9, the difference of the present embodiment is: described heat exchanger tilts to install, described baffle plate 5 is obliquely installed above separating tube 4, and the windward side baffle plate 5 of heat exchanger is installed lower, forms ebb interval 51 between the low level side of baffle plate 5 width and header tube wall.Described fluid hole 41 is near the high-order side in barrier width direction.Now, the air line distance that liquid outlet 41 has been ebb interval is for comparatively large, and cold-producing medium is through-flow distance, is conducive to abundant mixing.
In above-described embodiment one to embodiment five, fluid hole can along length direction distribution one row or the multiple row of separating tube, and the line of point fluid apertures of same row linearly or broken line, can adjust according to the actual needs, cold-producing medium be distributed more even.
Please refer to Figure 10, be embodiment one structural representation of the baffle plate 5 in the present invention, the side of baffle plate 5 width does not contact with header 1 tube wall, crosses ebb interval 51 to form continuous print;
Or, please refer to Figure 11, for embodiment two structural representation of the baffle plate 5 in the present invention, at least the side of baffle plate 5 width touches header 1 tube wall and arranges some breach in this compartment of terrain, side, to form interrupted ebb interval 51 excessively, the shape of described breach can be circular, semicircle, square or triangle.
The structure of the baffle plate 5 in Figure 10 and Figure 11 is applicable to embodiment one to the embodiment five of above-mentioned heat exchanger.
The width crossing ebb interval 51 described in above-mentioned all embodiments is L is 0.5mm ~ 5mm.
The embodiment of the present invention is applied to air-condition heat exchanger field, relates to a kind of heat exchanger.
By above-described embodiment, object of the present invention is reached by fully effective.The personage being familiar with this skill should be understood that and the present invention includes but the content being not limited to accompanying drawing and describing in detailed description of the invention above.Any amendment not departing from function and structure principle of the present invention all will comprise within the scope of the appended claims.
Claims (10)
1. a heat exchanger, comprise header, flat tube, fin and refrigerant distributing device, described flat tube is along header lengths directional spreding, described fin is between adjacent two row flat tubes, it is characterized in that: refrigerant distributing device comprises separating tube and baffle plate, described baffle plate arranges along header lengths direction and is epicoele and cavity of resorption by header interior separation, described flat tube inserts the epicoele of header, separating tube inserts header cavity of resorption and runs through header along header lengths direction, the pipe sidewall of separating tube is provided with the fluid hole leading to cold-producing medium to cavity of resorption, at least formed ebb interval between the side in barrier width direction and header tube wall, cold-producing medium is flowed out by fluid hole and passed through ebb interval and enters epicoele.
2. a kind of heat exchanger as claimed in claim 1, it is characterized in that: described heat exchanger is vertically installed, the both sides of described separating tube are respectively provided with baffle plate, and the baffle plate of separating tube both sides all and between header tube wall formed ebb interval;
Or described heat exchanger is vertically installed, the both sides of described separating tube width are provided with baffle plate, wherein form ebb interval between the baffle plate of side and header tube wall.
3. a kind of heat exchanger as claimed in claim 2, is characterized in that: the fluid direction of described fluid hole is consistent with gravity direction.
4. a kind of heat exchanger as claimed in claim 1, is characterized in that: heat exchanger is vertically installed, and described baffle plate is arranged at above separating tube, and baffle plate both sides all and between header tube wall formed ebb interval;
Or heat exchanger is vertically installed, described baffle plate is arranged at above separating tube, and baffle plate wherein formed ebb interval between side and header tube wall.
5. a kind of heat exchanger as claimed in claim 1, it is characterized in that: described heat exchanger tilts to install, the both sides of described separating tube are respectively provided with baffle plate, the baffle plate of separating tube both sides is obliquely installed and is arranged on differing heights place, the windward side baffle plate of heat exchanger is installed lower, wherein forms ebb interval between the baffle plate that sets low of installation position and header tube wall.
6. a kind of heat exchanger as claimed in claim 5, is characterized in that: the baffle plate that described fluid hole sets high near installation position.
7. a kind of heat exchanger as claimed in claim 1, it is characterized in that: described heat exchanger tilts to install, described baffle plate is obliquely installed above separating tube, and the windward side baffle plate of heat exchanger is installed lower, forms ebb interval between the low level side in barrier width direction and header tube wall.
8. a kind of heat exchanger as claimed in claim 7, is characterized in that: described fluid hole is near the high-order side in barrier width direction.
9. a kind of heat exchanger as claimed in any of claims 1 to 8 in one of claims, is characterized in that: at least the side in barrier width direction does not contact with header tube wall, crosses ebb interval to form continuous print;
Or at least the side in barrier width direction touches header tube wall and arranges some breach in this compartment of terrain, side, to form interrupted ebb interval excessively.
10. a kind of heat exchanger as claimed in any of claims 1 to 8 in one of claims, is characterized in that: the described width crossing ebb interval is 0.5mm ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310343780.5A CN104344607B (en) | 2013-08-08 | 2013-08-08 | A kind of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310343780.5A CN104344607B (en) | 2013-08-08 | 2013-08-08 | A kind of heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104344607A true CN104344607A (en) | 2015-02-11 |
| CN104344607B CN104344607B (en) | 2018-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310343780.5A Active CN104344607B (en) | 2013-08-08 | 2013-08-08 | A kind of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104344607B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271999A (en) * | 2018-12-04 | 2020-06-12 | 浙江三花智能控制股份有限公司 | Heat exchanger |
| CN111595100A (en) * | 2019-02-21 | 2020-08-28 | 佛山市顺德区美的饮水机制造有限公司 | Temperature-adjusting type separable storage drinking liquid refrigerating system and refrigerating equipment |
| CN112824769A (en) * | 2019-11-20 | 2021-05-21 | 青岛海信日立空调系统有限公司 | Air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455693A (en) * | 1990-06-21 | 1992-02-24 | Mitsubishi Electric Corp | Multi-tube type heat exchanger |
| JPH06159983A (en) * | 1992-11-20 | 1994-06-07 | Showa Alum Corp | Heat exchanger |
| EP1767887A2 (en) * | 2005-09-23 | 2007-03-28 | Valeo Klimasysteme GmbH | Internal heat exchanger for refrigerant circuit of air conditioning system |
| WO2008048251A2 (en) * | 2006-10-13 | 2008-04-24 | Carrier Corporation | Method and apparatus for improving distribution of fluid in a heat exchanger |
| US20110226005A1 (en) * | 2010-03-17 | 2011-09-22 | Hyung Jun Lee | Distributor, and evaporator and refrigerating machine with the same |
| CN102564204A (en) * | 2010-12-08 | 2012-07-11 | 三花丹佛斯（杭州）微通道换热器有限公司 | Refrigerant distributing device and heat exchanger comprising same |
-
2013
- 2013-08-08 CN CN201310343780.5A patent/CN104344607B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455693A (en) * | 1990-06-21 | 1992-02-24 | Mitsubishi Electric Corp | Multi-tube type heat exchanger |
| JPH06159983A (en) * | 1992-11-20 | 1994-06-07 | Showa Alum Corp | Heat exchanger |
| EP1767887A2 (en) * | 2005-09-23 | 2007-03-28 | Valeo Klimasysteme GmbH | Internal heat exchanger for refrigerant circuit of air conditioning system |
| WO2008048251A2 (en) * | 2006-10-13 | 2008-04-24 | Carrier Corporation | Method and apparatus for improving distribution of fluid in a heat exchanger |
| US20110226005A1 (en) * | 2010-03-17 | 2011-09-22 | Hyung Jun Lee | Distributor, and evaporator and refrigerating machine with the same |
| CN102564204A (en) * | 2010-12-08 | 2012-07-11 | 三花丹佛斯（杭州）微通道换热器有限公司 | Refrigerant distributing device and heat exchanger comprising same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271999A (en) * | 2018-12-04 | 2020-06-12 | 浙江三花智能控制股份有限公司 | Heat exchanger |
| CN111595100A (en) * | 2019-02-21 | 2020-08-28 | 佛山市顺德区美的饮水机制造有限公司 | Temperature-adjusting type separable storage drinking liquid refrigerating system and refrigerating equipment |
| CN112824769A (en) * | 2019-11-20 | 2021-05-21 | 青岛海信日立空调系统有限公司 | Air conditioner |
| US12173964B2 (en) | 2019-11-20 | 2024-12-24 | Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd. | Air conditioner |
| CN112824769B (en) * | 2019-11-20 | 2025-01-03 | 青岛海信日立空调系统有限公司 | An air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104344607B (en) | 2018-07-06 |
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