CN202792697U - Parallel flow heat exchanger - Google Patents
Parallel flow heat exchanger Download PDFInfo
- Publication number
- CN202792697U CN202792697U CN 201220173774 CN201220173774U CN202792697U CN 202792697 U CN202792697 U CN 202792697U CN 201220173774 CN201220173774 CN 201220173774 CN 201220173774 U CN201220173774 U CN 201220173774U CN 202792697 U CN202792697 U CN 202792697U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- fluid
- tube
- pipe
- inlet collecting
- 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.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims abstract description 52
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 24
- 239000004411 aluminium Substances 0.000 claims description 24
- 229910052782 aluminium Inorganic materials 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 11
- 239000002023 wood Substances 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 239000003507 refrigerant Substances 0.000 abstract description 33
- 239000007921 spray Substances 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Abstract
The utility model discloses a parallel flow heat exchanger sets up the fluid distribution pipe of intercommunication input tube in its entry pressure manifold, and the fluid distribution pipe is provided with a plurality of fluid jet apertures along entry pressure manifold extending direction. The fluid sent by the input pipe firstly enters the fluid distribution pipe and then is sprayed out to the cavity body of the inlet collecting pipe communicated with the flat pipe through the fluid spraying small holes. The fluid distribution pipe can simultaneously spray fluid to the far-end flat pipe and the near-end flat pipe, so that the refrigerant resistance between the far-end flat pipe and the near-end flat pipe is balanced, the uniformity of refrigerant distribution of the far-end flat pipe and the near-end flat pipe is improved, and the heat exchange performance of the parallel flow porous heat exchanger is improved.
Description
Technical field
The present invention relates to heat-exchange apparatus, particularly a kind of parallel-flow heat exchanger.
Background technology
Along with the rise of copper material price and the raising of air-conditioning Energy Efficiency Standard, become the inexorable trend of air-condition heat exchanger development with aluminium substitution copper.As the extremely good a kind of full aluminium heater of heat exchange property, parallel-flow heat exchanger is used as the new type heat exchanger of air-conditioning just more and more widely.
Yet existing parallel-flow heat exchanger all only welds an input, output refrigerant pipe on its input, the output header.After refrigerant entered input, output header, its distance to each flat tube was different, and we claim to be called the near-end flat tube near the flat tube of input, output refrigerant pipe, are called the far-end flat tube away from input, output refrigerant pipe.Because after cold-producing medium enters header, can be subject to the interference of flat tube in header inside, whirlpool appears along journey, flow resistance is very large, this is so that far-end flat tube cold-producing medium circulation is far smaller than the circulation of near-end flat tube, the inhomogeneous of medium side occurs easily flows, caused the refrigerant of part flat tube more abundant, and the cold medium flux of part flat tube is not enough, will certainly cause concurrent flow porous heat transfer apparatus even at the temperature distributing disproportionation of diverse location, make the reduction of heat exchange efficiency of parallel flow heat exchanger device.
Therefore, how to reduce the friction loss of the header of heat exchanger, and make the refrigerant distributed uniform of every flat tube, take full advantage of the inboard heat exchange area of flat tube, improve concurrent flow porous heat exchanger device heat exchange property, thereby improving refrigeration, the heating capacity of room air conditioner, is that those skilled in the art needs a technical solution difficult problem at present.
Summary of the invention
The present invention is intended to provide the parallel-flow heat exchanger of the cold medium flux distributed uniform that a kind of header on-way resistance is little, each flat tube is interior, to take full advantage of the heat exchange area of flat tube inboard, improves the heat exchange property of heat exchanger.
Parallel-flow heat exchanger of the present invention comprises inlet collecting and outlet header,
Between inlet collecting and outlet headerSome flat tubes with center-aisle are set, be provided with fin between flat tube, one end of flat tube communicates with inlet collecting, the other end of flat tube communicates with the outlet header, it is characterized in that: be provided with dispense tube in the inlet collecting, be communicated with input pipe by dispense tube, dispense tube is being provided with a plurality of Fluid injection apertures along the inlet collecting bearing of trend.
Parallel-flow heat exchanger of the present invention, input pipe is sent refrigerant here and is not directly entered into the cavity that inlet collecting and each flat tube directly are communicated with, but be introduced into dispense tube, be ejected in the cavity that inlet collecting is direct with flat tube communicates by the Fluid injection aperture of arranging along the inlet collecting bearing of trend on the dispense tube again.Refrigerant because of the tube wall isolation, can not be subject to the interference of flat tube whirlpool along in the process that flows in the dispense tube, and flow resistance is little, and fluid can be distributed in the whole dispense tube uniformly; The Fluid injection aperture is arranged along the inlet collecting bearing of trend, fluid in the dispense tube can be simultaneously sprays refrigerant from the different parts of inlet collecting bearing of trend to inlet collecting with the cavity that flat tube directly communicates, also is that dispense tube can be sprayed fluid to far-end flat tube and near-end flat tube the while uniformly.Therefore, parallel-flow heat exchanger of the present invention not only reduces the flow resistance of refrigerant in inlet collecting, but also improves the uniformity that refrigerant flows; Its balance the refrigerant resistance between far-end and the near-end flat tube, the refrigerant that has significantly improved far-end flat tube and near-end flat tube distributes, make fluid can be assigned to uniformly among each flat tube, fully effectively utilize the inboard heat exchange area of flat tube, thereby significantly improve concurrent flow porous heat exchanger heat exchange property.By improving the heat exchange property of heat exchanger, also just can improve and use its refrigeration as the room air conditioner of heat exchanger, heating capacity, make its heat exchanger as room air conditioner preferably.
In addition, Fluid injection hole diameter on the dispense tube is less, heat exchanger applications is in the room air conditioner time, the Fluid injection aperture not only plays the uniform purpose of shunting, also play certain throttling action, this is equivalent in the again throttling of room air conditioner inboard, and it can reduce the energy loss of refrigerant, has further improved the performance of room air conditioner.
Parallel-flow heat exchanger of the present invention, the aperture of the aperture of the injection fluid on the distributing pipe, quantity and layout can arrange as required, by aperture, hole count and the layout of selecting suitable aperture, the good refrigerant resistance between balance far-end and the near-end flat tube, thus the refrigerant that improves far-end flat tube and near-end flat tube distributes.It can solve the gas-liquid lamination and cause cold-producing medium to distribute uneven problem, can adapt to the needs that it uses as evaporimeter.
The pore diameter range of described Fluid injection aperture can be controlled in the 1mm to 3mm.Its size, quantity, and in the position of refrigerant passage, can according to heat exchanger inner refrigerant assignment of traffic uniformity, carry out suitable change.
Parallel-flow heat exchanger of the present invention, its outlet header also can arrange the structure identical with inlet collecting.Namely in the outlet header dispense tube is set equally, dispense tube is communicated with efferent duct, and a plurality of Fluid injection apertures of arranging along outlet header bearing of trend are set on the dispense tube.By said structure, make parallel-flow heat exchanger, can adapt to the two-way flow of liquid, when the liquid reverse flow, can have equally above-mentioned fluid distributed uniform, the advantage that heat exchange property is good.
Description of drawings
[0003] Fig. 1 is the structural representation of a kind of parallel-flow heat exchanger of embodiment 1.
Fig. 2 is the structural representation of a kind of parallel-flow heat exchanger of embodiment 2.
Fig. 3 is the structural representation of inlet collecting.
Fig. 4 is the schematic diagram after inlet collecting is removed end cap.
Fig. 5 is the structural representation of a kind of parallel-flow heat exchanger of embodiment 3.
Fig. 6 is a kind of sectional view of inlet collecting.
Fig. 7 is a kind of sectional view of inlet collecting.
Fig. 8 is a kind of sectional view of inlet collecting.
Fig. 9 is a kind of sectional view of inlet collecting.
The specific embodiment
Embodiment 1, a kind of parallel-flow heat exchanger, such as Fig. 1, comprise inlet collecting 1 and outlet header 2, between input header and output header some flat tubes 3 with center-aisle are set, be provided with fin 4 between flat tube, one end of flat tube communicates with inlet collecting, the other end of flat tube communicates with the outlet header, also be provided with dispense tube 5 in the inlet collecting, described dispense tube is communicated with input pipe 6, and dispense tube is being provided with a plurality of Fluid injection apertures 7 along the inlet collecting bearing of trend.
The refrigerant that input pipe 6 is sent here, be introduced in the dispense tube 5 of inlet collecting 1 interior setting, be ejected in the cavity 8 that inlet collecting communicates with flat tube by a plurality of Fluid injection apertures 7 that arrange on the distributing pipe again, then enter into each flat tube 3 by this cavity, after the flat tube heat exchange, flow out in the outlet header 2, flow out to efferent duct 9 by the outlet header again, sent by efferent duct.Its refrigerant sprays into cavity 8 at the aperture 7 by dispense tube after entering dispense tube, the position of aperture is arranged along the direction of inlet collecting, refrigerant can be respectively sprays into from the diverse location of inlet collecting, the direction that sprays into again can be over against flat tube, therefore, the refrigerant that enters flat tube is even, and the heat exchange property of heat exchanger is good.
The parallel-flow heat exchanger of present embodiment, can adapt to the two-way flow of refrigerant, when the liquid reverse flow, refrigerant enters into the dispense tube 10 that arranges in the outlet header by efferent duct 9 first, the Fluid injection aperture 7 that edge outlet header bearing of trend is not known on dispense tube 10 again, to the cavity 12 interior ejections that communicate with flat tube 3 of outlet header, then enter into again flat tube, after the heat exchange, flowed out to by the flat tube other end in the cavity 8 of inlet collecting, then, again by cavity 8 in Fluid injection aperture 7 enters into the dispense tube 5 that arranges in the inlet collecting, flow out from input pipe 6 again.Said structure makes by efferent duct 9 liquid of inflow heat exchangers in the other direction, can be assigned to uniformly in each flat tube equally, guarantees the again heat exchange property during the refrigerant reverse flow of heat exchanger.Thereby make heat exchanger can be good at adapting to the need of work of refrigerant two-way flow, the heat exchanger that can be used as heat pump air conditioner uses.
Described inlet collecting 1 such as Fig. 3, Fig. 4, can comprise aluminium composite wood A and the aluminium section bar B of mutual fastening, and the end cap C that covers at they two ends; Described aluminium composite wood is the flute profile bent plate, its outside, middle part has punching 13 to connect flat tube, aluminium section bar B also is the flute profile bent plate, its middle part is inboard to arrange the passage of tubulose as dispense tube 5, be provided with a plurality of Fluid injection apertures 7 on the dispense tube, the two ends of aluminium section bar B arrange the groove 14 that connects aluminium composite wood A, and the two ends of aluminium composite wood A are inserted into respectively in the groove 14, and end cap C covers the two ends at aluminium composite wood A and aluminium section bar B.By soldering oven that the end cap at the aluminium composite wood A, the aluminium section bar B that assemble and two ends is welded, can obtain inlet collecting.
It is two various possible shapes such as circle that square, oval, concave shape or middle part are communicated with that aluminium section bar B inboard can be designed to the interface as the dispense tube of refrigerant passage, can arrange simultaneously on the dispense tube can be towards the Fluid injection aperture of different directions, such as Fig. 6, Fig. 7, Fig. 8, Fig. 9.
The refrigerant of being come in by input pipe, at first enter in the first fluid distributing pipe 51 of first half of inlet collecting 1, evenly be ejected in inlet collecting first half 101 and the cavity that flat tube directly communicates by the Fluid injection aperture 7 on the first fluid distributing pipe 51, entered into the flat tube of the front portion of its correspondence by cavity, after the flat tube heat exchange, enter into the first half 201 of outlet header 2, entered in the second fluid distributing pipe 52 of outlet header latter half of 202 by outlet header first half again, again by Fluid injection aperture 7 ejections on this second fluid distributing pipe 50, in outlet header latter half of 202 and cavity that flat tube directly communicates, enter into again its corresponding rear portion flat tube, after the flat tube heat exchange of rear portion, enter into the latter half of 102 of inlet collecting, again by sending with the latter half of drain pipe that is communicated with of inlet collecting.In the present embodiment, refrigerant forms " U " word stream at flat tube, has formed double-flow, improves the heat transfer effect of refrigerant.Simultaneously, it has carried out second diffluence to refrigerant, shunts more evenly, and flow resistance is less, and heat transfer effect is more excellent.
Claims (6)
1. a parallel-flow heat exchanger comprises inlet collecting (1) and outlet header (2),
Between inlet collecting and outlet headerSome flat tubes (3) with center-aisle are set, be provided with fin (4) between flat tube, one end of flat tube communicates with inlet collecting, the other end of flat tube communicates with the outlet header, it is characterized in that: be provided with dispense tube (5) in the inlet collecting, be communicated with input pipe (6) by dispense tube, dispense tube is being provided with a plurality of Fluid injection apertures (7) along the inlet collecting bearing of trend.
2. parallel-flow heat exchanger according to claim 1, it is characterized in that: in the outlet header dispense tube (10) is set equally, dispense tube is communicated with efferent duct (9), and a plurality of Fluid injection apertures (7) of arranging along outlet header bearing of trend are set on the dispense tube.
3. parallel-flow heat exchanger according to claim 1, it is characterized in that: inlet collecting (1) is spaced at its bearing of trend and is two halves, be provided with first fluid distributing pipe (51) in the first half (101), a plurality of Fluid injection apertures (7) are set on the first fluid distributing pipe, and input pipe (6) is connected to first fluid distributing pipe (51); Latter half of (102) directly are communicated with flat tube; Outlet header then first half (201) directly is communicated with flat tube, be provided with the second fluid distributing pipe (52) of the first half that is communicated with the outlet header in latter half of (202), a plurality of Fluid injection apertures (7) are set on the second fluid distributing pipe.
4. any one described parallel-flow heat exchanger in 3 according to claim 1, it is characterized in that: the pore diameter range of described Fluid injection aperture is controlled in the 1mm to 3mm.
5. any one described parallel-flow heat exchanger in 3 according to claim 1, it is characterized in that: described inlet collecting (1) comprises aluminium composite wood (A) and the aluminium section bar (B) of mutual fastening, and cover end cap (C) at they two ends, described aluminium composite wood is the flute profile bent plate, its outside, middle part has punching (13) to connect flat tube, aluminium section bar also is the flute profile bent plate, its middle part is inboard to arrange the passage of tubulose as dispense tube (5), be provided with a plurality of Fluid injection apertures (7) on the dispense tube, the two ends of aluminium section bar arrange the groove (14) that connects the aluminium composite wood, the two ends of aluminium composite wood are inserted into respectively in the groove, and end cap covers the two ends at aluminium composite wood and aluminium section bar.
6. parallel-flow heat exchanger according to claim 5 is characterized in that: the inboard dispense tube cross section as passage of aluminium section bar (B) is two circles of square, oval, concave shape or middle part connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173774 CN202792697U (en) | 2012-04-23 | 2012-04-23 | Parallel flow heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173774 CN202792697U (en) | 2012-04-23 | 2012-04-23 | Parallel flow heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202792697U true CN202792697U (en) | 2013-03-13 |
Family
ID=47819949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220173774 Expired - Lifetime CN202792697U (en) | 2012-04-23 | 2012-04-23 | Parallel flow heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202792697U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206885A (en) * | 2013-03-27 | 2013-07-17 | 广东美的电器股份有限公司 | Header pipe, parallel flow heat exchanger and air conditioner |
| CN103743158A (en) * | 2014-01-06 | 2014-04-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN103983126A (en) * | 2014-05-28 | 2014-08-13 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN104764255A (en) * | 2015-03-26 | 2015-07-08 | 广东美的制冷设备有限公司 | Parallel flow heat exchanger |
| CN104807349A (en) * | 2015-04-03 | 2015-07-29 | 中国科学院理化技术研究所 | Horizontal-flow multimedium heat exchanger |
| CN104807356A (en) * | 2015-04-03 | 2015-07-29 | 中国科学院理化技术研究所 | Horizontal-flow multimedium heat exchanger |
| CN107796256A (en) * | 2017-07-13 | 2018-03-13 | 杭州三花研究院有限公司 | Header and the heat exchanger with the header |
| CN111964512A (en) * | 2020-08-27 | 2020-11-20 | 江苏康泰热交换设备工程有限公司 | All-aluminum heat exchanger of indoor unit of air conditioner |
| CN113819774A (en) * | 2021-08-30 | 2021-12-21 | 南京航空航天大学 | Heat exchange device for improving flow uniformity |
-
2012
- 2012-04-23 CN CN 201220173774 patent/CN202792697U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206885A (en) * | 2013-03-27 | 2013-07-17 | 广东美的电器股份有限公司 | Header pipe, parallel flow heat exchanger and air conditioner |
| CN103743158A (en) * | 2014-01-06 | 2014-04-23 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN103743158B (en) * | 2014-01-06 | 2017-03-01 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN103983126A (en) * | 2014-05-28 | 2014-08-13 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| CN103983126B (en) * | 2014-05-28 | 2016-08-24 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger |
| US10591227B2 (en) | 2014-05-28 | 2020-03-17 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Heat exchanger including a mixing and redistribution header |
| CN104764255A (en) * | 2015-03-26 | 2015-07-08 | 广东美的制冷设备有限公司 | Parallel flow heat exchanger |
| CN104807349A (en) * | 2015-04-03 | 2015-07-29 | 中国科学院理化技术研究所 | Horizontal-flow multimedium heat exchanger |
| CN104807356A (en) * | 2015-04-03 | 2015-07-29 | 中国科学院理化技术研究所 | Horizontal-flow multimedium heat exchanger |
| CN107796256A (en) * | 2017-07-13 | 2018-03-13 | 杭州三花研究院有限公司 | Header and the heat exchanger with the header |
| CN111964512A (en) * | 2020-08-27 | 2020-11-20 | 江苏康泰热交换设备工程有限公司 | All-aluminum heat exchanger of indoor unit of air conditioner |
| CN113819774A (en) * | 2021-08-30 | 2021-12-21 | 南京航空航天大学 | Heat exchange device for improving flow uniformity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER NAME: MEIDI GROUP CO. LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: MIDEA GROUP Co.,Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: Midea Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |