CN203298645U - Heat exchange tube and heat exchanger - Google Patents
Heat exchange tube and heat exchanger Download PDFInfo
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- CN203298645U CN203298645U CN2013202098325U CN201320209832U CN203298645U CN 203298645 U CN203298645 U CN 203298645U CN 2013202098325 U CN2013202098325 U CN 2013202098325U CN 201320209832 U CN201320209832 U CN 201320209832U CN 203298645 U CN203298645 U CN 203298645U
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- heat exchanger
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Abstract
The utility model discloses a heat exchange tube and a heat exchanger. The heat exchange tube comprises an outer tube layer and at least one inner tube layer sleeved with the outer tube layer, wherein the outer tube layer and the inner tube layer are connected through a spoke. A refrigerant channel is formed in the cavity formed by enclosure of the outer wall of the inner tube layer and the inner wall of the outer tube layer. According to the heat exchange tube, the interior, parallel with the axial direction, of the heat exchange tube is divided into at least two spaces. The space close to the outer tube layer is the refrigerant channel, and therefore most of heat exchange, inside the heat exchange tube, of refrigerant is carried out on the tube wall surface, the heat exchange performance of a system is guaranteed, the hollow position in the inner tube layer is plugged, the refrigerant does not occupy the ineffective volume of the portion, and the operation refrigerant amount in an air conditioning system is reduced greatly. In addition, due to tiny ribs on the inner wall of the outer tube layer, the outer wall surface of the inner tube layer and the tiny ribs on the outer wall surface of the inner tube layer, the heat exchange area of the inner surface of the heat exchange tube is increased, and the heat exchange performance is improved beneficially.
Description
Technical field
The utility model relates to air-conditioning technical field, relates in particular to heat exchanger tube and heat exchanger that a kind of fin-tube type heat exchanger is used.
Background technology
At present, to adapt to energy-conserving and environment-protective and to promote the development trend of air-conditioning efficiency, heat exchanger tube adds the technique direction development such as strong disturbance heat exchange towards pipe with small pipe diameter, high tooth are multiple tooth for the heat exchange efficiency that promotes air-condition heat exchanger.The new cooling medias such as R290, R32 that in addition, can significantly reduce GWP and ODP ambient influnence also are applied gradually.Wherein, the new cooling media application safety requires to reduce as far as possible the coolant quantity in air-conditioning system, and most refrigerant is all to be stored in the heat exchanger tube of heat exchanger, and the internal volume that therefore reduces in heat exchanger tube is most important to the development of new cooling media application.
At present, in the product of new cooling media application, using maximum is 5mm small-pipe diameter heat exchanger and micro-channel parallel flow heat exchanger, and it has reduced the operation coolant quantity of air-conditioning system to a certain extent, but has simultaneously some adverse effects.Because the 5mm small-pipe diameter heat exchanger is conducive to condensing heat-exchange, and is unfavorable for evaporation and heat-exchange, so conventional pipe diameter heat exchanger will reduce the air-conditioning heat exchange property on year-on-year basis; And for micro-channel parallel flow heat exchanger, although the internal volume of minim channel flat tube significantly dwindles, but the invalid content of header is long-pending excessive, greatly have influence on and reduce the coolant quantity effect, and heat pump air conditioner application parallel-flow heat exchanger also needs balance refrigeration and the different coolant quantity demands that heat, and makes its application very limited.
The utility model content
Main purpose of the present utility model is to provide a kind of heat exchanger tube and heat exchanger, when being intended to guarantee the air-conditioning heat transfer effect, reduces the air-conditioning system coolant quantity.
In order to achieve the above object, the utility model proposes a kind of heat exchanger tube, comprising: between external tube layer and be enclosed within least one inner tube layer in described external tube layer, described external tube layer and inner tube layer, by spoke, be connected; The cavity that surrounds between the outer wall of described inner tube layer and the inwall of external tube layer forms refrigerant passage.
Preferably, described inner tube layer is the hollow tube layer, and its two ends mouth of pipe seals by capping.
Preferably, the mouth of pipe of described capping and described inner tube layer welding.
Preferably, in described external tube layer, be arranged with an inner tube layer, described inner tube layer and described external tube layer coaxially arrange.
Preferably, in described external tube layer, be arranged with at least two inner tube layers, the axis of described inner tube layer is parallel with the axis of described external tube layer.
Preferably, the inwall of the outer wall of described inner tube layer and/or external tube layer is provided with some micro-ribs.
Preferably, the axis parallel of described micro-rib and/or spoke and heat exchanger tube or become predetermined angular to extend spirally.
Preferably, the micro-rib on the inwall of the outer wall of described inner tube layer and/or external tube layer is 20～100; Tooth depth 0.01～the 0.5mm of described micro-rib.
The utility model also proposes a kind of heat exchanger, comprises some heat exchanger tubes and is arranged on the fin between described heat exchanger tube, and described heat exchanger tube is heat exchanger tube as above.
Preferably, this heat exchanger also comprises side plate, semi-circular tube, input pipe and efferent duct, and described side plate is arranged on the both sides of heat exchanger; Described input pipe is connected with the heat exchanger tube that is positioned at heat exchanger one edge, and described efferent duct is connected with the heat exchanger tube that is positioned at another edge of heat exchanger, and described semi-circular tube is connected between every two heat exchanger tubes at heat exchanger middle part.
A kind of heat exchanger tube and the heat exchanger that the utility model proposes, by in pipe, being parallel to, axially be divided at least two spaces, space near external tube layer is refrigerant passage, make the most heat exchanges of refrigerant in heat exchanger tube all occur in tube wall face place, assurance system heat exchange property, to be in the hollow position shutoff in the inner tube layer, and not allow refrigerant occupy this partial invalidity volume, thereby greatly reduce the operation coolant quantity in air-conditioning system; In addition, the micro-rib on the external tube layer inwall, inner tube layer outside wall surface with and the existing of upper micro-rib, more increased the heat exchange area of inner surface in the pipe, favourable raising heat exchange property.
The accompanying drawing explanation
Fig. 1 is the schematic cross-section of the utility model heat exchanger tube the first embodiment;
Fig. 2 is the assembling schematic diagram of the utility model embodiment heat exchanger tube on heat exchanger;
Fig. 3 is the local enlarged diagram in A place shown in Figure 2;
Fig. 4 is the heat exchanger component assembled front view of the utility model embodiment heat exchanger tube;
Fig. 5 is the schematic cross-section of the utility model heat exchanger tube the second embodiment.
In order to make the technical solution of the utility model clearer, clear, below in conjunction with accompanying drawing, be described in further detail.
The specific embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model embodiment considers: because the heat exchange overwhelming majority of refrigerant in heat exchanger tube and pipe occurs near the inside pipe wall face, particularly evaporate under operating mode, the surrounding tube internal face tiling under the flow at high speed state of liquid phase refrigerant is come, by the micro-rib flow-disturbing on the inside pipe wall face, promote the refrigerant phase-change heat-exchange, to obtain maximum heat exchange efficiency.Therefore the utility model embodiment provides the heat exchange of a kind of energy enhanced tube internal face, eliminates the heat exchanger tube of Iinvalid volume in pipe, and is applied on heat exchanger, to reach the purpose that reduces the air-conditioning system coolant quantity.
Particularly, as shown in Figure 1 to Figure 3, the utility model the first embodiment proposes a kind of heat exchanger tube 2, comprising: external tube layer 21 and the inner tube layer 23 that is enclosed within described external tube layer 21, described inner tube layer 23 coaxially arranges with external tube layer 21, between external tube layer 21 and inner tube layer 23, by spoke 22, is connected; The cavity that surrounds between the inwall of the outer wall of described inner tube layer 23 and external tube layer 21 forms refrigerant passage 25.
The layer of inner tube described in the present embodiment 23 is the hollow tube layer, the cavity 26 of this hollow tube layer is not stored and is passed through any refrigerant fluid, and its two ends mouth of pipe, by capping 1 welded seal, stops refrigerant to enter, to eliminate the intraductal heat exchange Iinvalid volume, be welded with the heat exchanger tube 2 of capping 1 as shown in Figure 2.
Compare traditional heat exchanger tube 2, the present embodiment axially is divided into inside and outside two spaces by in heat exchanger tube 2, being parallel to, space near external tube layer 21 is refrigerant passage 25, due to the outer wall that has increased inner tube layer 23, make the most heat exchanges of refrigerant in heat exchanger tube 2 all occur in tube wall face place, guaranteed the heat exchange property of air-conditioning system, and will be in hollow position capping 1 shutoff in inner tube, do not allow refrigerant occupy this partial invalidity volume, thereby greatly reduce the operation coolant quantity in air-conditioning system.
Further, in the present embodiment, in order to improve the heat exchange property of air-conditioning system, on the inwall of the outer wall of inner tube layer 23 and external tube layer 21, be equipped with some micro-ribs 24, the existence of micro-rib 24 has increased inner surface heat exchange area in pipe, favourable raising system heat exchange property.
Above-mentioned micro-rib 24 and spoke 22 can with the axis parallel setting of heat exchanger tube 2, can also become extending spirally of predetermined angular.
As a kind of preferred embodiment, the quantity of the micro-rib 24 on the inwall of the outer wall of described inner tube layer 23 and external tube layer 21 can be 20～100; Tooth depth 0.01～the 0.5mm of described micro-rib 24.
It should be noted that, in other embodiments, can also be as required only on the inwall of the outer wall of inner tube layer 23 or external tube layer 21, micro-rib 24 be set; The tooth depth of the quantity of micro-rib 24 and micro-rib 24 can arrange as required.
The present embodiment is by such scheme, but Iinvalid volume in pipe is eliminated in the heat exchange of enhanced tube internal face, is applied on heat exchanger and can reduces the air-conditioning system coolant quantity.
The above-mentioned heat exchanger tube 2 of the present embodiment can adopt aluminum alloy material, can be applicable on the aluminium-alloy pipe fin heat exchanger, and as shown in Figure 2, the heat exchanger tube 2 that is arranged on heat exchanger be arranged in parallel, and is provided with fin 4 between heat exchanger tube 2.
The heat exchanger structure of application the present embodiment heat exchanger tube 2 specifically as shown in Figure 4, this heat exchanger comprises some heat exchanger tubes 2 that are welded with capping 1, is arranged on the fin 4 between described heat exchanger tube 2, and side plate 8, semi-circular tube 5, input pipe 6 and efferent duct 7, described side plate 8 is arranged on the both sides of heat exchanger; Described input pipe 6 is connected with the heat exchanger tube 2 that is positioned at heat exchanger one edge, described efferent duct 7 is connected with the heat exchanger tube 2 that is positioned at another edge of heat exchanger, described semi-circular tube 5 is connected between every two heat exchanger tubes 2 at heat exchanger middle part, when assembling, can adopt the Integral welded moulding, its structure can be a row or multi-row.
As shown in Figure 5, the utility model the second embodiment proposes a kind of heat exchanger tube, and different from above-mentioned the first embodiment is, in the present embodiment heat exchanger tube, in described external tube layer 21, be arranged with two inner tube layers 23, the axis of described inner tube layer 23 is parallel with the axis of described external tube layer 21.
By said structure, in heat exchanger tube, can manufacture larger heat exchange area, improve overall heat exchange efficiency.The contents such as heat exchanger tube is applied in heat exchanger assembling, moulding are identical with last embodiment, do not repeat them here.
It should be noted that, in other embodiments, can also to reduce the system coolant quantity, and improve the system heat exchange property at the interior sheathed more inner tube layers 23 of external tube layer 21, do not repeat them here.
In addition, as shown in Figures 2 and 4, the utility model also proposes a kind of heat exchanger, and comprise some heat exchanger tubes 2, be arranged on the fin 4 between described heat exchanger tube 2, and side plate 8, semi-circular tube 5, input pipe 6 and efferent duct 7, described side plate 8 is arranged on the both sides of heat exchanger; Described input pipe 6 is connected with the heat exchanger tube 2 that is positioned at heat exchanger one edge, described efferent duct 7 is connected with the heat exchanger tube 2 that is positioned at another edge of heat exchanger, described semi-circular tube 5 is connected between every two heat exchanger tubes 2 at heat exchanger middle part, when assembling, can adopt the Integral welded moulding, its structure can be a row or multi-row.
Described heat exchanger tube 2 can adopt the described heat exchanger tube of the various embodiments described above, and its design feature please refer to the various embodiments described above, does not repeat them here.
The utility model embodiment heat exchanger tube and heat exchanger, by in pipe, being parallel to, axially be divided at least two spaces, space near external tube layer 21 is refrigerant passage 25, make the most heat exchanges of refrigerant in heat exchanger tube 2 all occur in tube wall face place, do not damage heat exchange property, to be in the hollow position shutoff in the inner tube layer, and not allow refrigerant occupy this partial invalidity volume, thereby greatly reduce the operation coolant quantity in air-conditioning system; In addition, the micro-rib 24 on external tube layer 21 inwalls, inner tube layer 23 outside wall surface with and the existing of upper micro-rib 24, more increased the heat exchange area of inner surface in the pipe, favourable raising heat exchange property.
Above are 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 (10)
1. a heat exchanger tube, is characterized in that, comprising: between external tube layer and be enclosed within least one inner tube layer in described external tube layer, described external tube layer and inner tube layer, by spoke, be connected; The cavity that surrounds between the outer wall of described inner tube layer and the inwall of external tube layer forms refrigerant passage.
2. heat exchanger tube according to claim 1, is characterized in that, described inner tube layer is the hollow tube layer, and its two ends mouth of pipe seals by capping.
3. heat exchanger tube according to claim 2, is characterized in that, the mouth of pipe welding of described capping and described inner tube layer.
4. heat exchanger tube according to claim 1, is characterized in that, in described external tube layer, is arranged with an inner tube layer, and described inner tube layer and described external tube layer coaxially arrange.
5. heat exchanger tube according to claim 1, is characterized in that, in described external tube layer, is arranged with at least two inner tube layers, and the axis of described inner tube layer is parallel with the axis of described external tube layer.
6. the described heat exchanger tube of any one according to claim 1-5, is characterized in that, the outer wall of described inner tube layer and/or the inwall of external tube layer are provided with some micro-ribs.
7. heat exchanger tube according to claim 6, is characterized in that, the axis parallel of described micro-rib and/or spoke and heat exchanger tube or become predetermined angular to extend spirally.
8. heat exchanger tube according to claim 6, is characterized in that, the micro-rib on the outer wall of described inner tube layer and/or the inwall of external tube layer is 20 ~ 100; Tooth depth 0.01 ~ the 0.5mm of described micro-rib.
9. a heat exchanger, comprise some heat exchanger tubes and be arranged on the fin between described heat exchanger tube, it is characterized in that, described heat exchanger tube is the described heat exchanger tube of any one in claim 1-8.
10. heat exchanger according to claim 9, is characterized in that, also comprises side plate, semi-circular tube, input pipe and efferent duct, and described side plate is arranged on the both sides of heat exchanger; Described input pipe is connected with the heat exchanger tube that is positioned at heat exchanger one edge, and described efferent duct is connected with the heat exchanger tube that is positioned at another edge of heat exchanger, and described semi-circular tube is connected between every two heat exchanger tubes at heat exchanger middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202098325U CN203298645U (en) | 2013-04-23 | 2013-04-23 | Heat exchange tube and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202098325U CN203298645U (en) | 2013-04-23 | 2013-04-23 | Heat exchange tube and heat exchanger |
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| Publication Number | Publication Date |
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| CN203298645U true CN203298645U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202098325U Expired - Lifetime CN203298645U (en) | 2013-04-23 | 2013-04-23 | Heat exchange tube and heat exchanger |
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| CN (1) | CN203298645U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369890A (en) * | 2016-10-31 | 2017-02-01 | 合肥美的电冰箱有限公司 | Spiral-fin condenser and refrigerator with same |
| CN108613437A (en) * | 2018-05-03 | 2018-10-02 | 珠海格力电器股份有限公司 | Heat exchange device and air conditioner with same |
| CN110425912A (en) * | 2019-08-30 | 2019-11-08 | 中国科学院理化技术研究所 | A kind of defrosting sleeve heat exchange structure and its control method |
| CN110595114A (en) * | 2019-10-15 | 2019-12-20 | 春意环境科技有限公司 | Micro-channel condenser for circulating air source heat pump water heater |
| CN112923606A (en) * | 2021-01-15 | 2021-06-08 | 西安交通大学 | Phase-change cold/heat accumulation fin sleeve heat exchanger and working method thereof |
-
2013
- 2013-04-23 CN CN2013202098325U patent/CN203298645U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369890A (en) * | 2016-10-31 | 2017-02-01 | 合肥美的电冰箱有限公司 | Spiral-fin condenser and refrigerator with same |
| CN108613437A (en) * | 2018-05-03 | 2018-10-02 | 珠海格力电器股份有限公司 | Heat exchange device and air conditioner with same |
| CN110425912A (en) * | 2019-08-30 | 2019-11-08 | 中国科学院理化技术研究所 | A kind of defrosting sleeve heat exchange structure and its control method |
| CN110425912B (en) * | 2019-08-30 | 2024-04-16 | 中国科学院理化技术研究所 | Defrosting sleeve heat exchange structure and control method thereof |
| CN110595114A (en) * | 2019-10-15 | 2019-12-20 | 春意环境科技有限公司 | Micro-channel condenser for circulating air source heat pump water heater |
| CN112923606A (en) * | 2021-01-15 | 2021-06-08 | 西安交通大学 | Phase-change cold/heat accumulation fin sleeve heat exchanger and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20131202 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: GD MIDEA AIR-CONDITIONING EQUIPMENT Co.,Ltd. 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. Patentee before: GD MIDEA AIR-CONDITIONING EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
|
| CX01 | Expiry of patent term |