CN104344607B - A kind of heat exchanger - Google Patents
A kind of heat exchanger Download PDFInfo
- Publication number
- CN104344607B CN104344607B CN201310343780.5A CN201310343780A CN104344607B CN 104344607 B CN104344607 B CN 104344607B CN 201310343780 A CN201310343780 A CN 201310343780A CN 104344607 B CN104344607 B CN 104344607B
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- CN
- China
- Prior art keywords
- heat exchanger
- baffle
- header
- tube
- refrigerant
- 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
Abstract
The invention discloses a kind of heat exchangers, including header, flat tube, fin and refrigerant distributing device, flat tube is along header lengths directional spreding, fin is between adjacent two row flat tube, refrigerant distributing device includes separating tube and baffle, baffle sets along header lengths direction and will be divided into epicoele and cavity of resorption inside header, flat tube is inserted into the epicoele of header, separating tube is inserted into header cavity of resorption and runs through header along header lengths direction, the pipe side wall of separating tube is equipped with the fluid hole for leading to refrigerant to cavity of resorption, at least ebb interval was formed between the side in barrier width direction and afflux tube wall, refrigerant, which is flowed out by fluid hole and passed through ebb interval, enters epicoele.Refrigerant enters epicoele by crossing ebb interval after mixing after by fluid hole in cavity of resorption, solves in the prior art, and using porous plate or antipriming pipe, refrigerant is liquid separation secondary after flowing out porous plate is uneven the technical issues of.The present invention is used for air-conditioning heat exchanger field.
Description
【Technical field】
The present invention is applied to air-conditioning heat exchanger field, and in particular to a kind of heat exchanger.
【Background technology】
As shown in Figure 1, in the U.S. Patent application of Publication No. US_20100089559_A1, one kind is disclosed in afflux
The mode of pipe interpolation distribution pipe solves refrigerant assignment problem, aperture is provided in distribution pipe, refrigerant is by distribution pipe again through small
Hole is flowed out, but since refrigerant flowing has inertia, and several aperture flows close to entrance side can be by refrigerant inertial flow backward
Influence and it is smaller than several aperture flows below, caliber is smaller, and flow velocity is bigger, and suffered inertia effects are bigger, and is added
Work cost limits, aperture limited amount in distribution pipe, and refrigerant is difficult uniformly to flow into every flat tube after aperture is flowed out, and is deposited
In secondary distribution unevenness problem.Application No. is in the Chinese patent document of CN200910002438.2, disclose in header
A porous plate is inserted into, header is separated into two cavitys up and down, as shown in Fig. 2, the structure is due to header lower chamber body
Product is larger, therefore refrigerant flow rates are low, and effect of inertia is small, but the local flow velocity of entrance is larger, therefore at the aperture of entrance
Refrigerant flow is small, and aperture faces flat tube on porous plate, also due to aperture limited amount, refrigerant is porous in outflow
There is also secondary liquid separation unevenness problems after plate.
【Invention content】
Problem to be solved by this invention is just to provide a kind of heat exchanger that can evenly distribute refrigerating fluid.
In order to solve the above technical problems, the present invention adopts the following technical scheme that, a kind of heat exchanger, including header, flat tube,
Fin and refrigerant distributing device, for the flat tube along header lengths directional spreding, it is flat that the fin is located at adjacent two row
Between pipe, refrigerant distributing device includes separating tube and baffle, and the baffle sets along header lengths direction and by afflux
Epicoele and cavity of resorption are divided into inside pipe, the flat tube is inserted into the epicoele of header, and separating tube is inserted into header cavity of resorption and along collection
Flow tube length direction runs through header, and the pipe side wall of separating tube is equipped with the fluid hole for leading to refrigerant to cavity of resorption, and at least baffle is wide
Formed ebb interval between the degree side in direction and afflux tube wall, refrigerant flowed out by fluid hole and passed through ebb interval into
Enter epicoele.
Further, the heat exchanger is vertically-mounted, and the both sides of the separating tube are each provided with baffle, separating tube both sides
Baffle formed ebb interval between afflux tube wall；
Or the heat exchanger is vertically-mounted, the both sides of the separating tube width direction are provided with baffle, wherein side
Ebb interval was formed between baffle and afflux tube wall.
Further, the fluid hole to go out liquid direction consistent with gravity direction.
Further, heat exchanger is vertically-mounted, the baffle plate setting above separating tube, baffle both sides with header pipe
Ebb interval was formed between wall；
Or heat exchanger is vertically-mounted, the baffle plate setting is above separating tube, baffle wherein side and afflux tube wall
Between formed ebb interval.
Further, the heat exchanger tilts installation, and the both sides of the separating tube are each provided with baffle, separating tube both sides
Baffle is obliquely installed and at different height, and the installation of side shield windward of heat exchanger is relatively low, and wherein installation position is set low
Ebb interval was formed between baffle and afflux tube wall.
Further, the fluid hole is close to the high baffle of installation site.
Further, the heat exchanger tilts installation, and the baffle is obliquely installed above separating tube, and heat exchanger is windward
Side shield installation is relatively low, and ebb interval was formed between the low level side in barrier width direction and afflux tube wall.
Further, the fluid hole is close to the high-order side in barrier width direction.
Further, at least the side in barrier width direction is not contacted with afflux tube wall, to be formed between continuous overcurrent
Gap；
Or the side at least barrier width direction touches afflux tube wall and several lack is positioned apart from the side
Mouthful, to form interrupted ebb interval excessively.
Further, the width for crossing ebb interval is 0.5mm~5mm.
Beneficial effects of the present invention：
The heat exchanger of the present invention, refrigerant collide after the fluid hole on separating tube sprays with afflux tube wall, and mixing is equal
Flat tube is flowed to by overcurrent gap uniformity after even.Because there is no trepanning on baffle, refrigerant after separating tube ejection by baffle,
Flat tube is not flowed directly into, but flat tube is flowed to along ebb interval is crossed, eliminates effect of inertia, simultaneously because crossing ebb interval through whole
A header, therefore improve the discharge uniformity that afflux tube refrigerant flows to flat tube.
The present invention these features and advantages will be detailed in following specific embodiment, attached drawing exposure.
【Description of the drawings】
The present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 and Fig. 2 is refrigerant distribution structure schematic diagram in the prior art；
Fig. 3 is a kind of one structure diagram of embodiment 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 a kind of two structure diagram of embodiment of heat exchanger of the present invention；
Fig. 7 is a kind of three structure diagram of embodiment of heat exchanger of the present invention；
Fig. 8 is a kind of example IV structure diagram of heat exchanger of the present invention；
Fig. 9 is a kind of five structure diagram of embodiment of heat exchanger of the present invention；
Figure 10 is one structure diagram of embodiment of the baffle in the present invention；
Figure 11 is two structure diagram of embodiment of the baffle in the present invention.
【Specific embodiment】
The present invention provides a kind of heat exchanger, including header, flat tube, fin and refrigerant distributing device, the flat tube
Along header lengths directional spreding, for the fin between adjacent two row flat tube, refrigerant distributing device includes separating tube
And baffle, the baffle set along header lengths direction and epicoele and cavity of resorption, the flat tube will be divided into inside header
The epicoele of header is inserted into, separating tube is inserted into header cavity of resorption and runs through header along header lengths direction, separating tube
Pipe side wall is equipped with the fluid hole for leading to refrigerant to cavity of resorption, is at least formed between the side in barrier width direction and afflux tube wall
Ebb interval is crossed, refrigerant, which is flowed out by fluid hole and passed through ebb interval, enters epicoele.Refrigerant on separating tube by going out liquid
The primary distribution in hole and after crossing the secondary distribution of ebb interval, flows into epicoele and simultaneously enters flat tube, therefore improve in header and freeze
Agent flows to the discharge uniformity of flat tube.
The technical solution of the embodiment of the present invention is explained and illustrated with reference to the attached drawing of the embodiment of the present invention, but under
It is only the preferred embodiment of the present invention to state embodiment, and not all.Based on the embodiment in embodiment, people in the art
Member obtains other embodiment under the premise of creative work is not made, and belongs 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, distributed including header 1, flat tube 2, fin 3 and refrigerant
Device, the flat tube 2 are distributed along 1 length direction of header, and the fin 3 is between adjacent two row flat tube 2, refrigerant point
With device include separating tube 4 and baffle 5, the baffle 5 along 1 length direction of header set and by 1 inside points of header every
For epicoele 11 and cavity of resorption 12, the flat tube 2 is inserted into the epicoele of header, and separating tube 4 is inserted into header cavity of resorption and along header 1
Length direction runs through header 1, and the pipe side wall of separating tube 4 is equipped with fluid hole 41, and heat exchanger is vertically-mounted, the separating tube 4
The both sides of width direction are each provided with baffle 5, and the baffle 5 of separating tube both sides formed ebb interval between 1 tube wall of header
51, the fluid hole 41 to go out liquid direction consistent with gravity direction.After refrigerant sprays straight down along fluid hole 41, first
It is adequately collided with the bottom wall, side wall and baffle of header 1, after mixing, is led to along the ebb interval 51 of crossing of both sides afterwards
Enter epicoele 11, since the refrigerant inlet position distribution of flat tube is in the intermediate region of 1 epicoele 11 of header, ebb interval 51 excessively is located at
The fringe region of epicoele 11 so as to which refrigerant is just from when ebb interval 51 is passed through epicoele excessively, also is located at the fringe region of epicoele, upper
In chamber 11, refrigerant is from crossing during ebb interval 51 flows into flat tube, actually there is also the Homogenization Process of refrigerant, from whole
Apparently, by the above process, refrigerant is passed through flat tube to body after being sufficiently mixed uniformly, optimizes the performance of heat exchanger.
Embodiment two：
Please refer to Fig. 6, the present embodiment the difference lies in：Heat exchanger is vertically-mounted, 4 width direction of separating tube
Both sides are provided with baffle 5, wherein form ebb interval 51 between 1 tube wall of the baffle 5 of side and header, this side is heat exchanger
Windward side, arrow direction is wind direction in figure, is arranged on windward side due to crossing ebb interval 51 so that close to the flat of windward side side
Microchannel pore in pipe 2 is assigned to more refrigerants compared to the microchannel pore of the flat tube 2 far from windward side side, and windward side
The heat exchange efficiency of refrigerant is higher than leeward side refrigerant, therefore improves the heat exchange efficiency of heat exchanger entirety.The fluid hole 41
To go out liquid direction consistent with gravity direction.In addition to this, the liquid direction that goes out of fluid hole 41 can also be other directions, such as：Go out
The air line distance that liquid mouth 41 arrived ebb interval is maximum value, at this point, the through-flow distance of refrigerant, is conducive to be sufficiently mixed.
Embodiment three：
Please refer to Fig. 7, the present embodiment the difference lies in：Heat exchanger is vertically-mounted, and the baffle 5 is set to separating tube
4 tops, 5 both sides of baffle formed ebb interval 51 between 1 tube wall of header, and the fluid hole 41 goes out liquid direction towards ten
O'clock direction, in addition to this, the liquid direction that goes out of fluid hole 41 can also be other directions, and preferably liquid outlet 41 arrived ebb interval
Air line distance for maximum value, at this point, the through-flow distance of refrigerant, is conducive to be sufficiently mixed.
Example IV：
Please refer to Fig. 8, the present embodiment the difference lies in：The heat exchanger tilts installation（In actual use, heat exchanger
Would generally slant setting, in favor of draining）, 2 length direction of flat tube respectively sets horizontal by α angles, the both sides of the separating tube 4
Baffle 5 is equipped with, the baffle 5 of 4 both sides of separating tube is obliquely installed and at different height, side shield 5 windward of heat exchanger
It installs relatively low, ebb interval 51 was formed between baffle 5 and afflux tube wall that wherein installation position is set low.The fluid hole 41 is close
The high baffle of installation site, refrigerant, can be more easily uniform at the gap of 5 header of baffle due to its own gravity
Flow to flat tube 2, small flow resistance, meanwhile, refrigerant raw gas-liquid separation after fluid hole 41 flows into header 1, there are
The refrigerant A of gas bag and pure liquid refrigerant B two states, due to gravity, pure liquid refrigerant B is preferentially from baffle and collection
Flat tube is uniformly flowed into the gap of flow tube, optimizes heat transfer effect.Meanwhile the windward side that this side is heat exchanger, arrow side in figure
To for wind direction, it is arranged on windward side due to crossing ebb interval 51 so that the microchannel pore in the flat tube 2 of windward side side is compared
More refrigerants are assigned in the microchannel pore of the flat tube 2 far from windward side side, and the heat exchange efficiency of windward side refrigerant is high
In leeward side refrigerant, therefore improve the heat exchange efficiency of heat exchanger entirety.
Embodiment five：
Please refer to Fig. 9, the present embodiment the difference lies in：The heat exchanger tilts installation, and the baffle 5 is obliquely installed
Above separating tube 4, the side shield windward 5 of heat exchanger install it is relatively low, the low level side and afflux tube wall of 5 width direction of baffle it
Between formed ebb interval 51.The fluid hole 41 is close to the high-order side in barrier width direction.At this point, liquid outlet 41 arrived ebb interval
Air line distance to be larger, refrigerant is through-flow distance is conducive to be sufficiently mixed.
In above-described embodiment one to embodiment five, fluid hole can be distributed a row or more along the length direction of separating tube
Row, the line in the liquid separation hole of same row linearly or broken line, can be adjusted so that refrigerant point according to the actual needs
With more uniformly.
Figure 10 is please referred to, for one structure diagram of embodiment of the baffle 5 in the present invention, the side of 5 width direction of baffle
It is not contacted with 1 tube wall of header, to form continuous ebb interval 51 excessively；
Alternatively, Figure 11 is please referred to, for two structure diagram of embodiment of the baffle 5 in the present invention, at least 5 width side of baffle
To side touch 1 tube wall of header and be positioned apart from several notches in the side, with formed it is interrupted cross ebb interval 51,
The shape of the notch can be round, semicircle, rectangular or triangle.
The structure of baffle 5 in Figure 10 and Figure 11 is applicable to the embodiment one of above-mentioned heat exchanger to embodiment five.
It is 0.5mm~5mm that the width for crossing ebb interval 51 described in above-mentioned all embodiments, which is L,.
The embodiment of the present invention is applied to air-conditioning heat exchanger field, is related to a kind of heat exchanger.
By above-described embodiment, the purpose of the present invention is completely and effectively reached.It is familiar with the personage of this skill
It should be understood that the present invention includes but not limited to attached drawing and the above content described in specific embodiment.It is any without departing from the present invention
The modification of function and structure principle be intended to be included in the range of claims.
Claims (10)
1. a kind of heat exchanger, including header, flat tube, fin and refrigerant distributing device, the flat tube is along afflux pipe range
Directional spreding is spent, the fin is between adjacent two row flat tube, it is characterised in that：Refrigerant distributing device include separating tube and
Baffle, the baffle set along header lengths direction and epicoele and cavity of resorption will be divided into inside header, and the flat tube is inserted
Enter the epicoele of header, separating tube is inserted into header cavity of resorption and along header lengths direction through header, the pipe of separating tube
Side wall is equipped with the fluid hole for leading to refrigerant to cavity of resorption, is at least formed between the side in barrier width direction and afflux tube wall
Ebb interval crosses ebb interval through entire header, and refrigerant, which is flowed out by fluid hole and passed through ebb interval, enters epicoele.
2. a kind of heat exchanger as described in claim 1, it is characterised in that：The heat exchanger is vertically-mounted, the separating tube
Both sides are each provided with baffle, and the baffle of separating tube both sides formed ebb interval between afflux tube wall；
Or the heat exchanger is vertically-mounted, the both sides of the separating tube width direction are provided with the baffle of baffle, wherein side
Ebb interval was formed between afflux tube wall.
3. a kind of heat exchanger as claimed in claim 2, it is characterised in that：The fluid hole goes out liquid direction and gravity direction phase
Unanimously.
4. a kind of heat exchanger as described in claim 1, it is characterised in that：Heat exchanger is vertically-mounted, the baffle plate setting in point
Above liquid pipe, baffle both sides formed ebb interval between afflux tube wall；
Or heat exchanger is vertically-mounted, the baffle plate setting is above separating tube, between baffle wherein side and afflux tube wall
Formed ebb interval.
5. a kind of heat exchanger as described in claim 1, it is characterised in that：The heat exchanger tilts installation, the separating tube
Both sides are each provided with baffle, and the baffle of separating tube both sides is obliquely installed and at different height, the windward side of heat exchanger
Baffle installation is relatively low, and ebb interval was formed between baffle and afflux tube wall that wherein installation position is set low.
6. a kind of heat exchanger as claimed in claim 5, it is characterised in that：The fluid hole is close to the high baffle of installation site.
7. a kind of heat exchanger as described in claim 1, it is characterised in that：The heat exchanger tilts installation, and the baffle tilts
It is set to above separating tube, the installation of side shield windward of heat exchanger is relatively low, low level side and the afflux tube wall in barrier width direction
Between formed ebb interval.
8. a kind of heat exchanger as claimed in claim 7, it is characterised in that：The fluid hole is close to the high position in barrier width direction
Side.
9. a kind of heat exchanger as claimed in any of claims 1 to 8 in one of claims, it is characterised in that：At least barrier width direction
Side is not contacted with afflux tube wall, to form continuous ebb interval excessively；
Or the side at least barrier width direction touches afflux tube wall and is positioned apart from several notches in the side, with
Form interrupted ebb interval excessively.
10. a kind of heat exchanger as claimed in any of claims 1 to 8 in one of claims, it is characterised in that：The width for crossing ebb interval
For 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 CN104344607A (en) | 2015-02-11 |
| CN104344607B true CN104344607B (en) | 2018-07-06 |
Family
ID=52500739
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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111271999B (en) * | 2018-12-04 | 2021-04-27 | 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 |
Citations (5)
| 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 |
| WO2008048251A3 (en) * | 2006-10-13 | 2009-04-30 | Carrier Corp | Method and apparatus for improving distribution of fluid in a heat exchanger |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110104667A (en) * | 2010-03-17 | 2011-09-23 | 엘지전자 주식회사 | Distributor, evaporator and refrigerating machine with the same |
-
2013
- 2013-08-08 CN CN201310343780.5A patent/CN104344607B/en active Active
Patent Citations (5)
| 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 |
| WO2008048251A3 (en) * | 2006-10-13 | 2009-04-30 | Carrier Corp | Method and apparatus for improving distribution of fluid in a heat exchanger |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104344607A (en) | 2015-02-11 |
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