CN102788522A - Parallel flow heat exchanger and air conditioner - Google Patents
Parallel flow heat exchanger and air conditioner Download PDFInfo
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- CN102788522A CN102788522A CN2012102654383A CN201210265438A CN102788522A CN 102788522 A CN102788522 A CN 102788522A CN 2012102654383 A CN2012102654383 A CN 2012102654383A CN 201210265438 A CN201210265438 A CN 201210265438A CN 102788522 A CN102788522 A CN 102788522A
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Abstract
The invention discloses a parallel flow heat exchanger and an air conditioner. The parallel flow heat exchanger includes multiple flat tubes, multiple fins, a first collecting pipe and a second collecting pipe, wherein the first collecting pipe is provided with a first open cavity and a second open cavity that are mutually separated; a third open cavity is arranged on the second collecting pipe; first passages and second passages penetrate two ends of the flat tubes are arranged on two sides of the flat tubes; one ends of the first passages are communicated with the first open cavity, and one ends of the second passages are communicated with the second open cavity; and the other ends of both the first passages and the second passages are communicated with the second open cavity. A refrigerant enters the third open cavity from the first open cavity along the first passages on one side of each of the flat tubes, and is mixed in the third open cavity for secondary distribution. Therefore, the uneven temperature of the outlet air caused by the primary uneven distribution of the refrigerant can be avoided.
Description
Technical field
The present invention relates to air-conditioning technical field, especially relate to a kind of parallel-flow heat exchanger and air-conditioner.
Background technology
In air-conditioning technical field, micro-channel parallel flow heat exchanger has become the focus of research at present.Traditional parallel-flow heat exchanger owing to only refrigerant is once shunted, when coolant distribution is uneven, will cause leaving air temp uneven.For head it off, present solution is to adopt double rows parallel flow heat exchanger.As shown in Figure 1; So-called double rows parallel flow heat exchanger promptly is that two traditional parallel-flow heat exchangers are superposeed side by side, weld together; Wherein each parallel-flow heat exchanger is made up of some flat tube 1, two headers 2 being connected in the fin 3 between the flat tube 1 and being connected in flat tube 1 two ends; Then its two headers 2 are side by side at one end linked together through tube connector 4, refrigerant just passes through the header 2 of tube connector 4 entering flat tubes 1 opposite side at this end from the header 2 of flat tube 1 one sides, and carries out second diffluence after in this header 2, mixing; Thereby improved the uneven problem of coolant distribution, made that its leaving air temp is even.Yet complicated on this double rows parallel flow heat exchanger structure, cost is higher, and it is bigger to take up space.And double rows parallel flow heat exchanger has the fin of two row stacks, causes windage bigger, reduced air output.
Summary of the invention
Main purpose of the present invention is to provide a kind of parallel-flow heat exchanger and air-conditioner, is intended to lower cost, compact structure more, solves the uneven problem of parallel-flow heat exchanger leaving air temp.
In order to realize above purpose; The present invention proposes a kind of parallel-flow heat exchanger; This parallel-flow heat exchanger comprises: some flat tubes, some fins, first header and second header, and wherein, first header is provided with first atrium and second atrium of mutual isolation; Second header is provided with the 3rd atrium; The flat tube both sides are provided with first passage and the second channel that vertically runs through the flat tube two ends; And an end of first passage is communicated with said first atrium; One end of second channel is communicated with said second atrium, and the other end of first passage and second channel all is communicated with the 3rd atrium.
Preferably, the sidewall of said first atrium is provided with some first intercommunicating pores that are communicated with first atrium, and the sidewall of second atrium is provided with some second intercommunicating pores that are communicated with second atrium; The sidewall of the 3rd atrium is provided with some third connecting holes that are communicated with the 3rd atrium; The both sides of said flat tube one end are inserted first intercommunicating pore and second intercommunicating pore respectively, and the other end inserts the third connecting hole.
Preferably, said flat tube one end also be provided with one supply adaptive insertion first intercommunicating pore of flat tube and second intercommunicating pore breach, and this breach one side is provided with said first passage, opposite side is provided with said second channel.
Preferably, said flat tube comprises first flat tube and second flat tube that split is provided with, and first flat tube is provided with said first passage, and second flat tube is provided with said second channel; Said third connecting hole comprises two groups, and wherein one group is connected with first flat tube, and another group is connected with second flat tube.
Preferably, the cross-sectional area of said first passage and second channel is unequal.
Preferably, said first passage and second channel are some through holes that are arranged side by side.
Preferably, said first atrium is or/and second atrium is the through hole that vertically runs through first header, and said the 3rd atrium is for vertically running through the through hole of second header.
Preferably, said first header comprises plat part and arc sections, and said first intercommunicating pore and second intercommunicating pore are located on the plat part of first header.
Preferably, said second header comprises plat part and arc sections, and said third connecting hole is located on the plat part of this second header.
The present invention proposes a kind of air-conditioner simultaneously; This air-conditioner comprises a parallel-flow heat exchanger; This parallel-flow heat exchanger comprises: some flat tubes, some fins, first header and second header, and wherein, first header is provided with first atrium and second atrium of mutual isolation; Second header is provided with the 3rd atrium; The flat tube both sides are provided with first passage and the second channel that vertically runs through the flat tube two ends; And an end of first passage is communicated with said first atrium; One end of second channel is communicated with said second atrium, and the other end of first passage and second channel all is communicated with the 3rd atrium.
Preferably, the sidewall of said first atrium is provided with some first intercommunicating pores that are communicated with first atrium, and the sidewall of second atrium is provided with some second intercommunicating pores that are communicated with second atrium; The sidewall of the 3rd atrium is provided with some third connecting holes that are communicated with the 3rd atrium; The both sides of said flat tube one end are inserted first intercommunicating pore and second intercommunicating pore respectively, and the other end inserts the third connecting hole.
Preferably, said flat tube one end also be provided with one supply adaptive insertion first intercommunicating pore of flat tube and second intercommunicating pore breach, and this breach one side is provided with said first passage, opposite side is provided with said second channel.
Preferably, said flat tube comprises first flat tube and second flat tube that split is provided with, and first flat tube is provided with said first passage, and second flat tube is provided with said second channel; Said third connecting hole comprises two groups, and wherein one group is connected with first flat tube, and another group is connected with second flat tube.
Preferably, the cross-sectional area of said first passage and second channel is unequal.
Preferably, said first passage and second channel are some through holes that are arranged side by side.
Preferably, said first atrium is or/and second atrium is the through hole that vertically runs through first header, and said the 3rd atrium is for vertically running through the through hole of second header.
Preferably, said first header comprises plat part and arc sections, and said first intercommunicating pore and second intercommunicating pore are located on the plat part of first header.
Preferably, said second header comprises plat part and arc sections, and said third connecting hole is located on the plat part of this second header.
A kind of parallel-flow heat exchanger provided by the present invention and air-conditioner; Owing on first header, be provided with first atrium and second atrium of mutual isolation; On second header, be provided with the 3rd atrium; Make refrigerant at first get into the first passage of flat tube one side, realize the shunting first time of refrigerant from first atrium; Get into the 3rd atrium along first passage then, mix the second channel that the back gets into the flat tube opposite side at this, realize the shunting second time of refrigerant, last refrigerant is discharged from second atrium.Thereby avoided refrigerant because of once the uneven leaving air temp that causes of shunting is uneven, and this parallel-flow heat exchanger compact conformation, production cost is lower.
Description of drawings
Fig. 1 is the structural representation of double rows parallel flow heat exchanger in the prior art;
Fig. 2 is the explosive view of first embodiment of parallel-flow heat exchanger of the present invention;
Fig. 3 is the installation diagram of first embodiment of parallel-flow heat exchanger of the present invention;
Fig. 4 is the structural representation of flat tube among first embodiment of parallel-flow heat exchanger of the present invention;
Fig. 5 is the structural representation of second header among first embodiment of parallel-flow heat exchanger of the present invention;
Fig. 6 is the explosive view of second embodiment of parallel-flow heat exchanger of the present invention;
Fig. 7 is the installation diagram of second embodiment of parallel-flow heat exchanger of the present invention;
Fig. 8 is the structural representation of flat tube among second embodiment of parallel-flow heat exchanger of the present invention;
Fig. 9 is the explosive view of the 3rd embodiment of parallel-flow heat exchanger of the present invention;
Figure 10 is the structural representation of flat tube among the 3rd embodiment of parallel-flow heat exchanger of the present invention;
Figure 11 is the structural representation of fin among the 3rd embodiment of parallel-flow heat exchanger of the present invention;
Figure 12 is the structural representation of flat tube one embodiment of parallel-flow heat exchanger of the present invention;
Figure 13 is the explosive view of the 4th embodiment of parallel-flow heat exchanger of the present invention;
Figure 14 is the structural representation of second header among the 4th embodiment of parallel-flow heat exchanger of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Referring to Fig. 2-Fig. 5, first embodiment of parallel-flow heat exchanger of the present invention is proposed.Wherein, Fig. 2 is the explosive view of first embodiment of parallel-flow heat exchanger of the present invention; Fig. 3 is the installation diagram of first embodiment of parallel-flow heat exchanger of the present invention; Fig. 4 is the structural representation of flat tube among first embodiment of parallel-flow heat exchanger of the present invention; Fig. 5 is the structural representation of second header among first embodiment of parallel-flow heat exchanger of the present invention.Referring to Fig. 2, the parallel-flow heat exchanger of present embodiment comprises some flat tube 100, some fins 400, first header 200 and one second header 300.Referring to Fig. 4; Wherein the middle part of flat tube 100 1 ends is provided with a breach 130; These breach 130 both sides are provided with some through holes that vertically run through along flat tube 100; These through holes are the first passage 111 and second channel 121 that the cooling matchmaker is flowed and passed through, and the cross-sectional area of the first passage of breach 130 both sides and second channel equates in the present embodiment; First header 200 is provided with two through holes of isolating each other, also vertically running through the first header two ends; Also be about to the atrium that refrigerant imports and discharges; Be respectively first atrium 211 and second atrium 212; Have a dividing plate 230 that two atriums are kept apart in the middle of them, the thickness of dividing plate and above-mentioned breach 130 are adaptive, and two atrium sizes are identical.The cross section of first header 200 is the D font; Also promptly comprise arc sections 210 and plat part 220; Plat part 220 is provided with some first intercommunicating pores 221 that are communicated with first atrium 211; And second intercommunicating pore, 222, the first intercommunicating pores 221 and second intercommunicating pore 222 that are communicated with second atrium 212 be arranged side by side, and middlely separated by dividing plate 230.The size of said first intercommunicating pore 221 and second intercommunicating pore 22 is adapted for suitable with an end that is provided with breach 130 with above-mentioned flat tube 100.Certainly, above-mentioned first intercommunicating pore and second is communicated with also can be located at arc sections, but considers on the plat part punching and install more conveniently that so present embodiment selects to be arranged at plat part.
Referring to Fig. 5, also be provided with on second header 300 one run through the second header two ends through hole, also i.e. the 3rd atrium 311.This second header 300 also is the D font; Comprise arc sections 310 and plat part 320; Plat part 320 is provided with and first intercommunicating pore 221 and second intercommunicating pore, 222 corresponding third connecting holes 321, and this third connecting hole 321 does not have an end of breach adaptive with flat tube 100.Certainly, the third connecting hole also can be arranged at arc sections.During assembling; The end that flat tube 100 is provided with breach 130 is aimed at first intercommunicating pore 221 and second intercommunicating pore 222 of first header 200; Flat tube 100 with breach 130 both sides inserts first atrium 211 and second atrium 212 through first intercommunicating pore 221 and second intercommunicating pore 222 respectively subsequently; Then the other end of flat tube 100 is aimed at the third connecting hole 321 and the insertion of second header 300, made its other end get into the 3rd atrium 311.Thereby, make first passage 111 two ends of flat tube 100 1 sides be communicated with first atrium 211 of first header 200 and the 3rd atrium 311 of second header 300 respectively, form the passage that refrigerant flows; Second channel 121 two ends of flat tube 100 opposite sides are communicated with second atrium 212 of first header 200 and the 3rd atrium 311 of second header 300 respectively, form another passage that refrigerant flows.In like manner, some flat tubes 100 are inserted first header 200 and second header 300 respectively, at last fin 400 is welded between the adjacent flat pipe 100, finally accomplished the assembling (the assembling back is as shown in Figure 3) of the parallel heat exchanger of present embodiment.During this parallel heat exchanger operation, refrigerant at first gets into first atrium 211 of first header 200, and gets into the first passage 111 on flat tubes 100 right sides from this first atrium 211, and refrigerant has been carried out shunting for the first time; Get into the 3rd atrium 311 of second header 300 along first passage 111; After mixing herein, refrigerant carries out the shunting second time; Get back to first header 200 along the second channel 121 in flat tube 100 left sides; Get into second atrium 212 of first header 200, from second atrium 212, discharge at last.
In the present embodiment, owing to, avoided the uneven leaving air temp that causes of once shunting uneven to having carried out shunting for the second time after the refrigerant mixing.And, with respect to existing double rows parallel flow heat exchanger, the parallel-flow heat exchanger compact conformation of present embodiment, take up space for a short time, processing cost is low; And the fin of the parallel-flow heat exchanger of present embodiment has only a row and unlike the such two row's fins stacks of double rows parallel flow heat exchanger, so windage is less, and air quantity is bigger.
Referring to Fig. 6-Fig. 8, second embodiment of parallel-flow heat exchanger of the present invention is proposed.Wherein, Fig. 6 is the explosive view of second embodiment of parallel-flow heat exchanger of the present invention; Fig. 7 is the installation diagram of second embodiment of parallel-flow heat exchanger of the present invention; Fig. 8 is the structural representation of flat tube among second embodiment of parallel-flow heat exchanger of the present invention.This enforcement is with the difference of first embodiment: the breach 130 of flat tube 100 1 ends is not at the middle part, but the deflection left side makes that the cross-sectional area of left side second channel 121 is littler than the cross-sectional area of right side first passage 111.Accordingly, first atrium 211 of first header 200 and the size of second atrium 212 are also inequality, and also adjust accordingly with adaptive first intercommunicating pore 221 in the end of flat tube 100 breach 130 both sides and the size of second intercommunicating pore 222.Second header 300 is a pipe, but not D font pipe, third connecting hole 321 directly is located on the tube wall.The assembling of the parallel-flow heat exchanger of present embodiment is identical with first embodiment, repeats no more at this.
Because the cross-sectional area of first passage of flat tube 100 breach 130 both sides 111 and second channel 121 is unequal, so the parallel-flow heat exchanger of present embodiment both can make evaporimeter, also can make condenser.When this parallel-flow heat exchanger is used as evaporimeter; Refrigerant gets into from the second less atrium 212 of volume; And carrying out dividing for the first time the second channel 121 that flows into flat tube 100 left sides, the 3rd atrium 311 along second channel 121 entering second header 300 mixes the first passage 111 that the back gets into flat tube 100 right sides in here; Realized secondary shunting to refrigerant; Get into first atrium 211 and the discharge of first header 200 at last along first passage 111, the benefit of this stream is that the refrigerant flowing space increases gradually, helps the evaporation of refrigerant.When this parallel-flow heat exchanger was used as condenser, stream was then just opposite, and the refrigerant flowing space reduces gradually, helps the condensation of refrigerant.
Referring to Fig. 9-Figure 11, the 3rd embodiment of parallel-flow heat exchanger of the present invention is proposed.Wherein, Fig. 9 is the explosive view of the 3rd embodiment of parallel-flow heat exchanger of the present invention; Figure 10 is the structural representation of flat tube among the 3rd embodiment of parallel-flow heat exchanger of the present invention; Figure 11 is the structural representation of fin among the 3rd embodiment of parallel-flow heat exchanger of the present invention.Present embodiment is the same with second embodiment; The cross-sectional area of first passage 111 and second channel 121 is unequal; But implementation is distinguished to some extent: flat tube 100 two sides are not parallel; It is trapezoidal that its cross section roughly is, and the shape and the size in the third connecting hole 321 on first intercommunicating pore 221 on first header, 200 tube walls and second intercommunicating pore 222 and second header, 300 tube walls also adjust accordingly, with adaptive with flat tube 100.In addition; Because the two sides of flat tube 100 are not parallel; So preferred fin 400 shown in figure 12 of this parallel-flow heat exchanger; This fin 400 comprises some blades 410 and the brace 420 that some blades 410 are serially connected, and the space between the adjacent blades 410 is adaptive is held on flat tube 100 two sides.Because the first passage 111 of flat tube 100 breach 130 both sides of present embodiment is also inequality with second channel 121 cross-sectional areas; Therefore the parallel-flow heat exchanger of present embodiment also can be as second embodiment; Both evaporimeter can be used as, also condenser can be used as.
Referring to Figure 12, Figure 12 is the structural representation of flat tube one embodiment of parallel-flow heat exchanger of the present invention.The flat tube 100 of present embodiment is with 100 differences of the flat tube of the foregoing description: extend a groove 140 along breach 130 to the other end on the flat tube 100, also promptly reduced the thickness of this part.Because refrigerant is not transmitted at breach 130 places, thus passage need be set, thereby can reduce its thickness, reduce material cost.
Further, referring to Figure 13, Figure 14, propose the 4th embodiment of parallel-flow heat exchanger of the present invention, Figure 13 is the explosive view of the 4th embodiment of parallel-flow heat exchanger of the present invention; Figure 14 is the structural representation of second header among the 4th embodiment of parallel-flow heat exchanger of the present invention.The maximum difference of present embodiment and the foregoing description is: the flat tube 100 of present embodiment comprises first flat tube 110 and second flat tube 120 that split is provided with; First flat tube 110 is provided with first passage 111, the second flat tubes 120 that vertically run through first flat tube, 110 two ends and is provided with the second channel 121 that vertically runs through second flat tube, 120 two ends; And the third connecting hole 311 on second header 300 comprises independent side by side two groups of being provided with, and wherein one group of third connecting hole 3211, the right is connected with first flat tube 110, and one group of third connecting hole 3212, the left side is connected with second flat tube 120.
During assembling, first flat tube, 110 1 ends insert first intercommunicating pore 221, and the other end inserts one group of third connecting hole 3211, the right; Said second flat tube, 120 1 ends insert second intercommunicating pore 222, and the other end inserts one group of third connecting hole 3212, the left side.During the parallel-flow heat exchanger operation, refrigerant gets into first atrium 211 of first header 200, after shunting for the first time, gets into first flat tube 110; Get into the 3rd atrium 311 of second header 300 along the first passage 111 of first flat tube 110; And the mixing in the 3rd atrium 311 places, get into second flat tube 120 then, realize the shunting second time of refrigerant; Last refrigerant gets into second atrium 212 of first header 200 along second channel 121, and discharges parallel-flow heat exchanger.Certainly, in the present embodiment cross-sectional area of the passage on first header and second header can equate also can be unequal.
Present embodiment proposes a kind of air-conditioner simultaneously; This air-conditioner comprises a parallel-flow heat exchanger; This parallel-flow heat exchanger comprises: some flat tubes, some fins, first header and second header, and wherein, first header is provided with first atrium and second atrium of mutual isolation; Second header is provided with the 3rd atrium; The flat tube both sides are provided with first passage and the second channel that vertically runs through the flat tube two ends; And an end of first passage is communicated with said first atrium; One end of second channel is communicated with said second atrium, and the other end of first passage and second channel all is communicated with the 3rd atrium.Parallel-flow heat exchanger described in the present embodiment repeats no more at this for the related parallel-flow heat exchanger of the foregoing description among the present invention.
Should be understood that; More than be merely the preferred embodiments of the present invention; Can not therefore limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a parallel-flow heat exchanger is characterized in that, comprising: some flat tubes, some fins, first header and second header, and wherein, first header is provided with first atrium and second atrium of mutual isolation; Second header is provided with the 3rd atrium; The flat tube both sides are provided with first passage and the second channel that vertically runs through the flat tube two ends; And an end of first passage is communicated with said first atrium; One end of second channel is communicated with said second atrium, and the other end of first passage and second channel all is communicated with the 3rd atrium.
2. parallel-flow heat exchanger according to claim 1; It is characterized in that; The sidewall of said first atrium is provided with some first intercommunicating pores that are communicated with first atrium, and the sidewall of second atrium is provided with some second intercommunicating pores that are communicated with second atrium; The sidewall of the 3rd atrium is provided with some third connecting holes that are communicated with the 3rd atrium; The both sides of said flat tube one end are inserted first intercommunicating pore and second intercommunicating pore respectively, and the other end inserts the third connecting hole.
3. parallel-flow heat exchanger according to claim 2; It is characterized in that; Said flat tube one end also be provided with one supply adaptive insertion first intercommunicating pore of flat tube and second intercommunicating pore breach, and this breach one side is provided with said first passage, opposite side is provided with said second channel.
4. parallel-flow heat exchanger according to claim 2 is characterized in that, said flat tube comprises first flat tube and second flat tube that split is provided with, and first flat tube is provided with said first passage, and second flat tube is provided with said second channel; Said third connecting hole comprises two groups, and wherein one group is connected with first flat tube, and another group is connected with second flat tube.
5. parallel-flow heat exchanger according to claim 1 is characterized in that the cross-sectional area of said first passage and second channel is unequal.
6. according to each described parallel-flow heat exchanger of claim 1-5, it is characterized in that said first passage and second channel are some through holes that are arranged side by side.
7. according to each described parallel-flow heat exchanger of claim 1-5, it is characterized in that said first atrium is or/and second atrium is the through hole that vertically runs through first header, said the 3rd atrium is for vertically running through the through hole of second header.
8. according to each described parallel-flow heat exchanger of claim 2-5, it is characterized in that said first header comprises plat part and arc sections, said first intercommunicating pore and second intercommunicating pore are located on the plat part of first header.
9. according to each described parallel-flow heat exchanger of claim 2-5, it is characterized in that said second header comprises plat part and arc sections, said third connecting hole is located on the plat part of this second header.
10. an air-conditioner comprises a parallel-flow heat exchanger, it is characterized in that, said parallel-flow heat exchanger is like each described parallel-flow heat exchanger of claim 1-9.
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| CN2012102654383A CN102788522A (en) | 2012-07-27 | 2012-07-27 | Parallel flow heat exchanger and air conditioner |
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| CN2012102654383A CN102788522A (en) | 2012-07-27 | 2012-07-27 | Parallel flow heat exchanger and air conditioner |
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| CN104132482A (en) * | 2014-07-30 | 2014-11-05 | 广州涉外经济职业技术学院 | Parallel flow type heat exchanger |
| CN104154801A (en) * | 2014-08-14 | 2014-11-19 | 丹佛斯微通道换热器（嘉兴）有限公司 | Collecting pipe and heat exchanger |
| CN104457383A (en) * | 2014-12-15 | 2015-03-25 | 重庆东京散热器有限公司 | Oil chamber for oil cooler |
| CN106196740A (en) * | 2016-07-19 | 2016-12-07 | 上海交通大学 | U-shaped connector type parallel-flow evaporator |
| CN106196739A (en) * | 2016-07-19 | 2016-12-07 | 上海交通大学 | Arch deflector parallel-flow evaporator |
| CN104279709B (en) * | 2014-10-08 | 2017-12-19 | 美的集团股份有限公司 | Control method, device and the air conditioner of air conditioner |
| CN110462324A (en) * | 2017-03-27 | 2019-11-15 | 大金工业株式会社 | Heat Exchangers and Freezers |
| CN113790549A (en) * | 2021-09-01 | 2021-12-14 | 中山富雪泰制冷设备有限公司 | Novel efficient and energy-saving condensation unit and air conditioner |
| WO2022057536A1 (en) * | 2020-09-17 | 2022-03-24 | 浙江盾安人工环境股份有限公司 | Collecting tube and heat exchanger having same |
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