CN202993670U - Heat exchanger flow path structure and indoor heat exchanger - Google Patents
Heat exchanger flow path structure and indoor heat exchanger Download PDFInfo
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- CN202993670U CN202993670U CN 201220614627 CN201220614627U CN202993670U CN 202993670 U CN202993670 U CN 202993670U CN 201220614627 CN201220614627 CN 201220614627 CN 201220614627 U CN201220614627 U CN 201220614627U CN 202993670 U CN202993670 U CN 202993670U
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Abstract
The utility model discloses a heat exchanger flow path structure and an indoor heat exchanger. The heat exchanger flow structure comprises a front heat exchanger and a rear heat exchanger. The pipe diameter of a heat exchanging pipe in the front heat exchanger is smaller than the pipe diameter of a heat exchanging pipe in the rear heat exchanger. Due to the fact that a relatively small diameter is utilized in the front heat exchanger and a relatively big diameter is utilized in the rear heat exchanger and according to heat exchanging characteristics of different flow states of cooling agent in different pipes with different pipe diameters, the small pipe diameter and relatively more flow paths are sufficiently utilized to improve the heat exchanging property of the cooling agent in a two-phrase region, and the big pipe diameter and relatively fewer flow paths increase the pipe flow speed of the cooling agent to improve the heat exchanging property of a single-phrase region in a gas phrase region. Accordingly, the defects that heat exchanging efficiency is not high, a die does not has a universality function, cost is high and a flow path is complicated in the prior art are overcome.
Description
Technical field
The utility model relates to air-conditioning technical field, relates in particular to a kind of heat-exchanger flow-path structure and indoor heat exchanger.
Background technology
Traditional air-conditioning indoor heat exchanger, the wall-hanging indoor heat exchanger of domestic air conditioning particularly, mostly adopt at present heat exchanger structure as shown in Figure 1, wherein, indoor heat exchanger is the caliber of unified specification substantially, as 7mm, 6mm, 6.35mm, 5mm etc., the characteristics of this unified specification caliber are to carry out the difference setting of arranging in the heat exchange characteristic of different flow regions according to different tube diameters, cause thus air-conditioning indoor heat exchanger overall heat exchange poor-performing.
At present, the indoor heat exchanger that employing arc form different tube diameters combination is as shown in Figure 2 also arranged, this indoor heat exchanger can the heat exchange characteristic in different tube diameters be arranged according to cold-producing medium, has very high heat exchange efficiency, still, in this heat exchanger structure, fin and pipe expanding equipment are monoblock types, do not possess versatility, and fin and the expand tube Die price very high, corresponding common type seems that cost is higher, is difficult for large-scale application.
In addition, along with the continuous lifting of domestic and international air-conditioning Energy Efficiency Standard, need to strengthen indoor heat exchanger on the basis of traditional indoor heat exchanger, as increase Tube Sheet of Heat Exchanger number or heat exchanger length, under this kind situation, for the larger pipe of caliber (as 7mm), cost can sharply increase; For the pipe (as 5mm) of caliber less, because the heat exchanger flow path resistance is relatively large, stream and pipe arrangement are very complicated, and each stream also is not easy distributed uniform simultaneously.
The utility model content
Main purpose of the present utility model is to provide heat-exchanger flow-path structure and the indoor heat exchanger that a kind of cost is low, stream is simple, versatility is good and heat exchange efficiency is high.
In order to achieve the above object, the utility model proposes a kind of heat-exchanger flow-path structure, comprising: front heat exchanger and rear heat exchanger, in described front heat exchanger, the caliber of heat exchanger tube is less than the caliber of heat exchanger tube in rear heat exchanger.
Preferably, in described rear heat exchanger, the caliber of heat exchanger tube is 6-8mm, and in described front heat exchanger, the caliber of heat exchanger tube is 3-6mm.
Preferably, in described front heat exchanger, the caliber of heat exchanger tube is 5mm, and in described rear heat exchanger, the caliber of heat exchanger tube is 7mm.
Preferably, described front heat exchanger is many folding heat exchangers.
Preferably, described rear heat exchanger is provided with general import and general export, under cooling condition, cold-producing medium enters described rear heat exchanger by described general import, first pass through described after one to two, front row, the windward side heat exchanger tube of heat exchanger, a minute multichannel enters described front heat exchanger again, through gather after heat exchange enter described after heat exchanger, flowed out by described general export; Under heating condition, the stream mode of cold-producing medium is opposite with said process.
Preferably, this heat-exchanger flow-path structure also comprises two distributors, and two distributors all are connected between described front heat exchanger and rear heat exchanger; Under cooling condition, cold-producing medium enters described rear heat exchanger by described general import, first pass through described after two heat exchanger tubes of heat exchanger windward side, divide four the tunnel to enter described front heat exchanger by a distributor wherein again, through heat exchange, after gathering by another distributor, a minute two-way enters described rear heat exchanger again, is discharged by described general export; Under heating condition, the stream mode of cold-producing medium is opposite with said process.
Preferably, described rear heat exchanger is provided with general export, and under cooling condition, a cold-producing medium first minute multichannel enters described front heat exchanger, through enter again after heat exchange described after heat exchanger, flowed out by described general export.
Preferably, this heat-exchanger flow-path structure also comprises two distributors, and wherein a distributor is connected with front heat exchanger, and another distributor is connected between described front heat exchanger and rear heat exchanger; Under cooling condition, cold-producing medium first divides four the tunnel to enter front heat exchanger through a distributor wherein, through after heat exchange, then after another distributor gathers minute two-way enter described after the front-seat heat exchanger tube of windward side of heat exchanger, flowed out by described general export.
The utility model also proposes a kind of indoor heat exchanger, comprises heat-exchanger flow-path structure as above.
A kind of heat-exchanger flow-path structure and the indoor heat exchanger that the utility model proposes, front heat exchanger part and rear heat exchanger part at heat exchanger arrange respectively different tube diameters, then adjust in the different tube diameters heat exchange characteristic heat exchange efficiency that stream promotes whole heat exchanger according to cold-producing medium; Because each heat exchange tube diameter of front heat exchanger is identical, each heat exchanger caliber of rear heat exchanger is identical, makes the fin of heat exchanger tube and expand tube can directly use existing mould, satisfies thus the large-scale low-cost production requirement simultaneously; In addition, owing to partly adopting than pipe with small pipe diameter at front heat exchanger, partly adopt than Large Diameter Pipeline at rear heat exchanger, flow regimes different from cold-producing medium are in the different tube diameters heat exchange characteristic, at two-phase section, take full advantage of pipe with small pipe diameter and more stream and promote cold-producing medium at the two-phase section heat exchange property; In gas phase zone, take full advantage of than Large Diameter Pipeline and less stream and promote cold-producing medium flowing velocity lifting monophase field heat exchange property in pipe, can overcome thus the weak point that in prior art, heat exchange efficiency is not high, mould does not have versatility and cost and stream complexity.
Description of drawings
Fig. 1 is existing a kind of indoor heat exchanger structural representation;
Fig. 2 is existing another kind of indoor heat exchanger structural representation;
Fig. 3 is the structural representation of the utility model heat-exchanger flow-path structure the first embodiment;
Fig. 4 is the structural representation of the utility model heat-exchanger flow-path structure the second embodiment.
In order to make the technical solution of the utility model clearer, clear, be described in further detail below in conjunction with accompanying drawing.
The specific embodiment
Please refer to Fig. 3, Fig. 3 is the structural representation of the utility model heat-exchanger flow-path structure the first embodiment.
As shown in Figure 3, the present embodiment proposes a kind of heat-exchanger flow-path structure, comprise: front heat exchanger 1 and rear heat exchanger 2 and two distributors 3, two distributors 3 all are connected between described front heat exchanger 1 and rear heat exchanger 2, and in described front heat exchanger 1, the caliber D1 of heat exchanger tube is less than the caliber D2 of heat exchanger tube in rear heat exchanger 2.
The present embodiment arranges respectively different tube diameters in front heat exchanger 1 part and rear heat exchanger 2 parts of indoor heat exchanger, then adjusts stream according to cold-producing medium in the different tube diameters heat exchange characteristic, to promote the heat exchange efficiency of whole indoor heat exchanger.
Particularly, in the present embodiment, front heat exchanger 1 adopts many folding heat exchangers, and it comprises two Heat exchanger sheets at least.
Wherein, as a kind of preferred embodiment, in rear heat exchanger 2, the caliber D2 of heat exchanger tube is 6-8mm, and in front heat exchanger 1, the caliber D1 of heat exchanger tube is 3-6mm.
In the former heat exchanger 1 of the present embodiment, the caliber D1 of heat exchanger tube is 5mm, and in rear heat exchanger 2, the caliber D2 of heat exchanger tube is that 7mm illustrates.
As shown in Figure 3, the present embodiment is provided with general import (as shown in arrow A in Fig. 3) and general export (as shown in arrow B in Fig. 3) at rear heat exchanger 2, the stream mode of cold-producing medium under cooling condition is: cold-producing medium enters described rear heat exchanger 2 by described general import, first warp is front-seat one to two heat exchanger tube in windward side (as shown in wind direction arrow in figure) of heat exchanger 2 later, a minute multichannel enters front heat exchanger 1 again, through gather after heat exchange enter after heat exchanger 2, flowed out by general export; Under heating condition, the stream mode of cold-producing medium is opposite with said process, and above-mentioned general import becomes general export; Above-mentioned general export becomes general import.
More specifically, as a kind of preferred embodiment, the heat exchange tube diameter D1 of former heat exchanger 1 is 5mm, and the heat exchange tube diameter D2 of rear heat exchanger 2 is that 7mm is example, under cooling condition, cold-producing medium enters described rear heat exchanger 2 by described general import, first pass through described after two heat exchanger tubes of heat exchanger 2 windward side, then entered front heat exchanger 1 in 3 minutes four the tunnel by a distributor wherein, through after abundant heat exchange, after gathering by another distributor 3, a minute two-way enters described rear heat exchanger 2 again, is discharged by described general export; Under heating condition, the stream mode of cold-producing medium is opposite with said process, and last two caliber D2 heat exchanger tubes out are supercooling tube, can promote the heating effect of indoor heat exchanger.The flow arrangement mode of this indoor heat exchanger of the present embodiment is suitable for refrigeration and heats having relatively high expectations, and the high-end indoor set that disposes the isothermal dehumidifying function.
The present embodiment is by such scheme, in front heat exchanger 1 part and the rear steaming heat exchanger part of indoor heat exchanger, different tube diameters is set respectively, then adjusts in the different tube diameters heat exchange characteristic heat exchange efficiency that stream promotes whole indoor heat exchanger according to cold-producing medium; Simultaneously because the caliber of each heat exchanger tube in front heat exchanger 1 is identical, the caliber of each heat exchanger of rear heat exchanger 2 is identical, make fin and expand tube in heat exchanger can directly use traditional mould, thereby satisfied the large-scale low-cost production requirement, meanwhile, owing to adopting than pipe with small pipe diameter in front heat exchanger 1 part, adopt than Large Diameter Pipeline in rear heat exchanger 2 parts, can overcome the weak point that in prior art, heat exchange efficiency is not high, mould does not have versatility, cost and stream complexity.
Please refer to Fig. 4, Fig. 4 is the structural representation of the utility model heat-exchanger flow-path structure the second embodiment.
As shown in Figure 4, the present embodiment proposes a kind of heat-exchanger flow-path structure, similar to above-mentioned the first embodiment, include front heat exchanger 1, rear heat exchanger 2 and two distributors 3, the caliber D2 of the little D1 of caliber heat exchanger tube in rear heat exchanger 2 of heat exchanger tube in described front heat exchanger 1, its difference is, in the present embodiment, wherein a distributor 3 is connected with front heat exchanger 1, and another distributor 3 is connected between front heat exchanger 1 and rear heat exchanger 2; Simultaneously, the stream mode of cold-producing medium in indoor heat exchanger is also different.
Particularly, the present embodiment is provided with general export (as shown in arrow B in Fig. 4) on rear heat exchanger 2, the stream mode of cold-producing medium under cooling condition is: cold-producing medium first by Fig. 4 in arrow A punishment multichannel enter front heat exchanger 1, through heat exchanger 2 after entering again after abundant heat exchange, flowed out by the general export on rear heat exchanger 2 at last, at heating condition, the stream mode of cold-producing medium is opposite with said process.
More specifically, as a kind of preferred embodiment, the heat exchange tube diameter D1 of heat exchanger 1 was 5mm in the past, the heat exchange tube diameter D2 of rear heat exchanger 2 is that 7mm is example, under cooling condition, cold-producing medium first entered front heat exchanger 1 in 3 minutes four the tunnel through a distributor wherein, through after heat exchange, again after another distributor 3 gathers minute two-way enter described after the 7mm heat exchanger tube at windward side front row of heat exchanger 2, flowed out by described general export; At heating condition, the stream mode of cold-producing medium is opposite with said process.The flow arrangement mode technique of this indoor heat exchanger of the present embodiment is relative with stream simple, is fit to do the low and middle-end machine.
The present embodiment is by such scheme, in front heat exchanger 1 part and the rear steaming heat exchanger part of indoor heat exchanger, different tube diameters is set respectively, then adjusts in the different tube diameters heat exchange characteristic heat exchange efficiency that stream promotes whole indoor heat exchanger according to cold-producing medium; Simultaneously because the caliber of each heat exchanger tube in front heat exchanger 1 is identical, the caliber of each heat exchanger of rear heat exchanger 2 is identical, make fin and expand tube in heat exchanger can directly use traditional mould, thereby satisfied the large-scale low-cost production requirement, meanwhile, owing to adopting than pipe with small pipe diameter in front heat exchanger 1 part, adopt than Large Diameter Pipeline in rear heat exchanger 2 parts, can overcome the weak point that in prior art, heat exchange efficiency is not high, mould does not have versatility, cost and stream complexity.
The utility model is compared with existing conventional art and is had the following advantages:
Can according to the heat exchange characteristic of the different flow regimes of cold-producing medium in different tube diameters, at two-phase section, take full advantage of pipe with small pipe diameter and more stream and promote cold-producing medium at the two-phase section heat exchange property; In gas phase zone, take full advantage of than Large Diameter Pipeline and less stream and promote cold-producing medium flowing velocity in pipe, promote the monophase field heat exchange property.It has more versatility with respect to existing arc form expander die, can adjust according to demand to satisfy senior middle school's low side different product requirement.
In addition, the utility model also proposes a kind of indoor heat exchanger, and this indoor heat exchanger comprises the described heat-exchanger flow-path structure of above-described embodiment, does not repeat them here.
Indoor heat exchanger in above-described embodiment is specifically as follows indoor evaporator.
The above is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in scope of patent protection of the present utility model.
Claims (9)
1. a heat-exchanger flow-path structure, is characterized in that, comprising: front heat exchanger and rear heat exchanger, in described front heat exchanger, the caliber of heat exchanger tube is less than the caliber of heat exchanger tube in rear heat exchanger.
2. heat-exchanger flow-path structure according to claim 1, is characterized in that, in described rear heat exchanger, the caliber of heat exchanger tube is 6-8mm, and in described front heat exchanger, the caliber of heat exchanger tube is 3-6mm.
3. heat-exchanger flow-path structure according to claim 2, is characterized in that, in described front heat exchanger, the caliber of heat exchanger tube is 5mm, and in described rear heat exchanger, the caliber of heat exchanger tube is 7mm.
4. heat-exchanger flow-path structure according to claim 1, is characterized in that, described front heat exchanger is many folding heat exchangers.
5. the described heat-exchanger flow-path structure of any one according to claim 1-4, it is characterized in that, described rear heat exchanger is provided with general import and general export, under cooling condition, cold-producing medium enters described rear heat exchanger by described general import, first pass through described after one to two, front row, the windward side heat exchanger tube of heat exchanger, then a minute multichannel enters described front heat exchanger, through gather after heat exchange enter described after heat exchanger, flowed out by described general export; Under heating condition, the stream mode of cold-producing medium is opposite with said process.
6. heat-exchanger flow-path structure according to claim 5, is characterized in that, also comprises two distributors, and two distributors all are connected between described front heat exchanger and rear heat exchanger; Under cooling condition, cold-producing medium enters described rear heat exchanger by described general import, first pass through described after two heat exchanger tubes of heat exchanger windward side, divide four the tunnel to enter described front heat exchanger by a distributor wherein again, through heat exchange, after gathering by another distributor, a minute two-way enters described rear heat exchanger again, is discharged by described general export; Under heating condition, the stream mode of cold-producing medium is opposite with said process.
7. the described heat-exchanger flow-path structure of any one according to claim 1-4, is characterized in that, described rear heat exchanger is provided with general export, under cooling condition, a cold-producing medium first minute multichannel enters described front heat exchanger, through enter again after heat exchange described after heat exchanger, flowed out by described general export.
8. heat-exchanger flow-path structure according to claim 7, is characterized in that, also comprises two distributors, and wherein a distributor is connected with front heat exchanger, and another distributor is connected between described front heat exchanger and rear heat exchanger; Under cooling condition, cold-producing medium first divides four the tunnel to enter front heat exchanger through a distributor wherein, through after heat exchange, then after another distributor gathers minute two-way enter described after the front-seat heat exchanger tube of windward side of heat exchanger, flowed out by described general export.
9. an indoor heat exchanger, is characterized in that, comprises the described heat-exchanger flow-path structure of any one in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614627 CN202993670U (en) | 2012-11-19 | 2012-11-19 | Heat exchanger flow path structure and indoor heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614627 CN202993670U (en) | 2012-11-19 | 2012-11-19 | Heat exchanger flow path structure and indoor heat exchanger |
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| CN202993670U true CN202993670U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220614627 Expired - Lifetime CN202993670U (en) | 2012-11-19 | 2012-11-19 | Heat exchanger flow path structure and indoor heat exchanger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949404A (en) * | 2015-07-09 | 2015-09-30 | 广东志高空调有限公司 | Foldable heat exchanger |
| CN103438620B (en) * | 2013-08-27 | 2016-01-06 | 海尔集团公司 | High-efficiency evaporator |
| CN106403394A (en) * | 2016-11-29 | 2017-02-15 | 美的集团武汉制冷设备有限公司 | Pipe of evaporator, evaporator and air conditioner |
| CN106802027A (en) * | 2015-11-26 | 2017-06-06 | 同方人工环境有限公司 | A kind of composite wind-cooled fin-tube type heat exchanger structure |
| CN106871496A (en) * | 2017-04-01 | 2017-06-20 | 青岛海尔空调器有限总公司 | Indoor heat exchanger and air-conditioner |
| WO2018098991A1 (en) * | 2016-11-29 | 2018-06-07 | 美的集团武汉制冷设备有限公司 | Evaporator pipeline, evaporator, and air conditioner |
-
2012
- 2012-11-19 CN CN 201220614627 patent/CN202993670U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438620B (en) * | 2013-08-27 | 2016-01-06 | 海尔集团公司 | High-efficiency evaporator |
| CN104949404A (en) * | 2015-07-09 | 2015-09-30 | 广东志高空调有限公司 | Foldable heat exchanger |
| CN106802027A (en) * | 2015-11-26 | 2017-06-06 | 同方人工环境有限公司 | A kind of composite wind-cooled fin-tube type heat exchanger structure |
| CN106403394A (en) * | 2016-11-29 | 2017-02-15 | 美的集团武汉制冷设备有限公司 | Pipe of evaporator, evaporator and air conditioner |
| WO2018098991A1 (en) * | 2016-11-29 | 2018-06-07 | 美的集团武汉制冷设备有限公司 | Evaporator pipeline, evaporator, and air conditioner |
| CN106871496A (en) * | 2017-04-01 | 2017-06-20 | 青岛海尔空调器有限总公司 | Indoor heat exchanger and air-conditioner |
| CN106871496B (en) * | 2017-04-01 | 2019-12-31 | 青岛海尔空调器有限总公司 | Indoor heat exchanger and air conditioner |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131129 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: GD MIDEA HOLDING CD., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
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| CX01 | Expiry of patent term |