CN113048811A - Bending type parallel flow heat exchanger - Google Patents
Bending type parallel flow heat exchanger Download PDFInfo
- Publication number
- CN113048811A CN113048811A CN201911383576.XA CN201911383576A CN113048811A CN 113048811 A CN113048811 A CN 113048811A CN 201911383576 A CN201911383576 A CN 201911383576A CN 113048811 A CN113048811 A CN 113048811A
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- CN
- China
- Prior art keywords
- end plate
- refrigerant
- heat exchanger
- flat
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05358—Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
Abstract
The invention discloses a bending type parallel flow heat exchanger, which comprises an upper end plate and a lower end plate, wherein a plurality of parallel flat pipes are fixed between the upper end plate and the lower end plate, a plurality of parallel flow channels are arranged in the flat pipes, a refrigerant inlet and an upper drainage groove are arranged in the upper end plate, a refrigerant outlet and a lower drainage groove are arranged in the lower end plate, a refrigerant enters the upper drainage groove through the refrigerant inlet of the upper end plate, flows into the flat pipes, reaches the lower drainage groove at the lower end plate through the parallel flow channels in the flat pipes, then flows into the upper end plate through the flat pipes, changes the direction after reaching the upper drainage groove of the upper end plate, then enters the flat pipes, reaches the lower end plate, and finally flows out from the refrigerant outlet of. The S-shaped parallel flow heat exchanger can replace the traditional parallel flow heat exchanger, so that the temperature difference between the S-shaped parallel flow heat exchanger and the heat exchanger is more uniform in the gas heat exchange process, the overall performance of the heat exchanger can be effectively improved, and the heat exchange efficiency of the heat exchanger is greatly improved.
Description
Technical Field
The present invention relates to a heat exchanger.
Background
The existing parallel flow heat exchanger is generally in a parallel structure. The heat exchange type has large heat exchange temperature difference and low heat exchange coefficient, so that the heat exchange coefficient of the whole heat exchanger cannot meet the ideal requirement.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a bending parallel flow heat exchange device which can ensure that the heat exchange temperature difference is more uniform and the heat exchange coefficient can be improved.
The technical scheme provided by the invention is as follows:
the utility model provides a bent type parallel flow heat exchanger, including the upper end plate, the lower end plate, be fixed with a plurality of parallel arrangement's flat pipe between upper end plate and the lower end plate, flat intraductal a plurality of parallel flow channels that set up that sets up, be provided with refrigerant import and last drainage groove in the upper end plate, be provided with refrigerant export and lower drainage groove in the lower end plate, the refrigerant import that the refrigerant passes through the upper end plate gets into last drainage groove, flow in flat pipe, parallel flow channel through flat pipe reachs the lower drainage groove of lower end plate department, reentrant flat pipe flow is to the upper end plate afterwards, the last drainage groove redirecting that reachs the upper end plate reachs flat pipe, arrive the lower end plate, the refrigerant export from.
The utility model provides a formula of bending parallel flow heat exchanger, including the upper end plate, the lower end plate, be fixed with a plurality of parallel arrangement' S flat intraductal S type runner that sets up between upper end plate and the lower end plate, flat tub of lower extreme is provided with the refrigerant and advances the pipe, flat tub of upper end is provided with the refrigerant exit tube, the refrigerant advances and all is provided with a plurality of quad slit on pipe and the refrigerant exit tube, the refrigerant advances every quad slit on the pipe and corresponds the refrigerant import on every flat pipe, every quad slit on the refrigerant exit tube corresponds the refrigerant export on every flat pipe, the refrigerant advances the quad slit in the pipe through the refrigerant and flows in flat pipe, the refrigerant flows out from flat pipe through the quad slit in.
The S-shaped parallel flow heat exchanger can replace the traditional parallel flow heat exchanger, so that the temperature difference between the S-shaped parallel flow heat exchanger and the heat exchanger is more uniform in the gas heat exchange process, the overall performance of the heat exchanger can be effectively improved, and the heat exchange efficiency of the heat exchanger is greatly improved.
Drawings
Fig. 1 is a schematic structural view of a heat exchanger according to embodiment 1 of the present invention.
Fig. 2 is a schematic view of the structure of the flat tube in example 1.
Fig. 3 is a schematic view of the lower endplate structure in example 1.
Fig. 4 is a front view of example 1.
Fig. 5 is a sectional view a-a of fig. 4.
Fig. 6 is a schematic structural diagram of a heat exchanger in embodiment 2 of the present invention.
Fig. 7 is a schematic view of a refrigerant pipe in example 2.
Fig. 8 is a cross-sectional view of the flat tube and the refrigerant run in example 2.
Detailed Description
The present invention is described in further detail below with reference to the attached drawings.
Example 1
As shown in fig. 1, a bent type parallel flow heat exchanger, including upper end plate 1, lower end plate 3, be fixed with a plurality of parallel arrangement's flat pipe 2 between upper end plate 1 and the lower end plate 3, set up a plurality of parallel runner 21 in the flat pipe 2, be provided with refrigerant import 11 and last drainage groove (not drawn in the figure) in the upper end plate 1, be provided with refrigerant export 31 and lower drainage groove 32 in the lower end plate 3, the refrigerant gets into the upper drainage groove through the refrigerant import 11 of upper end plate 1, flow into flat pipe 2, parallel runner 21 in through flat pipe 2 reaches the lower drainage groove 32 of lower end plate 3 department, reentrant flat pipe 2 flows to upper end plate 1 afterwards, the last drainage groove that reaches upper end plate 1 changes the direction and reentries flat pipe 2, reach lower end plate 3, at last refrigerant export 31 from lower end plate 3 flows out.
The upper end plate 1 and the lower end plate 3 of the heat exchanger play a role in installing and fixing the flat tubes 2; because the flow channel in the flat tube 2 is a parallel straight flow channel, the flow direction of the refrigerant in the flat tube is changed through the drainage grooves in the upper end plate 1 and the lower end plate 3, and the parallel flow is changed into a segmented parallel S-shaped flow mode; the flat tubes 2 are arranged in parallel, air passes through the heat exchanger through gaps between the flat tubes and the flat tubes, and the air carries out heat convection in the heat exchanger; air enters the heat exchanger from the direction of one side (the side with lower temperature of the flat pipe in the heat exchanger) close to the outlet and penetrates out of the heat exchanger from one side (the side with higher temperature of the flat pipe in the heat exchanger) close to the inlet, so that the effect of uniform temperature difference is achieved; the flow direction in the flat tube is shown in fig. 5. The flow direction of the refrigerant in the flat pipes is changed, the S-shaped flow channel is achieved, the temperature of the flat pipes is divided into a high part, a middle part and a low part, and air enters from the lower part of the temperature, so that the effect of uniform temperature difference is achieved in the heat exchange process, and the heat exchange efficiency is improved.
In the direction perpendicular to the flow plane of the refrigerant, air is forced to flow by a fan, and the air and the flat tubes exchange heat through gaps among the flat tubes, so that the refrigerant is cooled by reducing the temperature of the flat tubes; because the coolant in the flat pipe flows in an S-shaped manner, the temperature of the refrigerant is gradually reduced in the process of passing through the S-shaped flow channel, so that the temperature of the flat pipe is gradually reduced, the temperature difference between the air and the flat pipe is uniform in the process that the air passes through the flat pipe at different temperatures, the temperature difference is uniform, the heat exchange efficiency is improved, and the overall heat exchange coefficient of the heat exchanger is improved.
Example 2
As shown in fig. 6, a bent type parallel flow heat exchanger, including upper end plate 1, lower end plate 3, be fixed with a plurality of parallel arrangement' S flat pipe 2 between upper end plate 1 and the lower end plate 3, set up S type runner 21 in the flat pipe 2, flat pipe 2 lower extreme is provided with the refrigerant and advances pipe 5, flat pipe 2 upper end is provided with refrigerant exit tube 4, the refrigerant advances to all be provided with a plurality of quad slit 6 on pipe 5 and the refrigerant exit tube 4, the refrigerant advances every quad slit 6 on pipe 5 and corresponds the refrigerant import 23 on every flat pipe 2, every quad slit 6 on refrigerant exit tube 4 corresponds the refrigerant export 23 on every flat pipe 2.
The upper end plate 1 and the lower end plate 3 of the heat exchanger play a role in installing and fixing the flat tubes 2; the flow channel type in the flat tube 2 is an S-shaped slender single channel, and the refrigerant flows in the flow channel in an S shape; the refrigerant flows into the flat tube 2 through the square hole 6 in the refrigerant inlet tube 5, and then flows out of the flat tube 2 through the square hole 6 in the refrigerant outlet tube 4; the flat tubes 2 are arranged in parallel, air passes through the heat exchanger through gaps between the flat tubes 2 and the flat tubes 2, and the air carries out heat convection in the heat exchanger; the air gets into the heat exchanger from the direction of the one side (the lower side of flat pipe 2 temperature in the heat exchanger) that is close to the export, wears out the heat exchanger from the one side (the higher side of flat pipe 2 temperature in the heat exchanger) that is close to the entry to reach the even effect of difference in temperature. The difference from embodiment 1 is that the flat tube 2 in embodiment 2 is provided with an S-shaped flow channel, and a diversion trench is not needed to divert the refrigerant.
Claims (2)
1. A bending type parallel flow heat exchanger is characterized by comprising an upper end plate (1) and a lower end plate (3), wherein a plurality of parallel flat pipes (2) are fixed between the upper end plate (1) and the lower end plate (3), a plurality of parallel flow channels (21) are arranged in the flat pipes (2), a refrigerant inlet (11) and an upper drainage groove are arranged in the upper end plate (1), a refrigerant outlet (31) and a lower drainage groove (32) are arranged in the lower end plate (3), a refrigerant enters the upper drainage groove through the refrigerant inlet (11) of the upper end plate (1), flows into the flat pipes (2), reaches the lower drainage groove (32) at the lower end plate (3) through the parallel flow channels (21) in the flat pipes (2), then flows into the upper end plate (1) through the flat pipes (2), and then enters the flat pipes (2) through the upper drainage grooves (12) of the upper end plate (1) to change direction, and then enters the flat pipes (2) to, and finally flows out of the refrigerant outlet (31) of the lower end plate (3).
2. A bent parallel flow heat exchanger is characterized by comprising an upper end plate (1) and a lower end plate (3), wherein a plurality of parallel flat pipes (2) are fixed between the upper end plate (1) and the lower end plate (3), an S-shaped flow channel (21) is arranged in each flat pipe (2), a refrigerant inlet pipe (5) is arranged at the lower end of each flat pipe (2), a refrigerant outlet pipe (4) is arranged at the upper end of each flat pipe (2), a plurality of square holes (6) are arranged on each refrigerant inlet pipe (5) and each refrigerant outlet pipe (4), each square hole (6) on each refrigerant inlet pipe (5) corresponds to a refrigerant inlet (22) on each flat pipe (2), each square hole (6) on each refrigerant outlet pipe (4) corresponds to a refrigerant outlet (23) on each flat pipe (2), and refrigerant flows into the flat pipes (2) through the square holes (6) in the refrigerant inlet pipes (5), then the refrigerant flows out of the flat pipe (2) through a square hole (6) in the refrigerant outlet pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911383576.XA CN113048811A (en) | 2019-12-27 | 2019-12-27 | Bending type parallel flow heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911383576.XA CN113048811A (en) | 2019-12-27 | 2019-12-27 | Bending type parallel flow heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113048811A true CN113048811A (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911383576.XA Pending CN113048811A (en) | 2019-12-27 | 2019-12-27 | Bending type parallel flow heat exchanger |
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| CN (1) | CN113048811A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419002A (en) * | 2008-09-04 | 2009-04-29 | 王磊 | Parallel flow heat exchanger and use |
| CN102032720A (en) * | 2010-01-07 | 2011-04-27 | 上海交通大学 | Throttle evaporator |
| CN103017579A (en) * | 2012-12-18 | 2013-04-03 | 中国科学院理化技术研究所 | Plate-fin type heat exchanger with fluid being flowing back and forth in channel |
| CN104389683A (en) * | 2014-11-05 | 2015-03-04 | 中国船舶重工集团公司第七�三研究所 | Compact heat regenerator |
| CN106091784A (en) * | 2015-04-23 | 2016-11-09 | 山东大学 | A kind of heat exchange plate of Cu alloy material |
| CN106403670A (en) * | 2016-11-30 | 2017-02-15 | 洛阳瑞昌石油化工设备有限公司 | Non-welded type pure countercurrent plate heat exchanger |
-
2019
- 2019-12-27 CN CN201911383576.XA patent/CN113048811A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101419002A (en) * | 2008-09-04 | 2009-04-29 | 王磊 | Parallel flow heat exchanger and use |
| CN102032720A (en) * | 2010-01-07 | 2011-04-27 | 上海交通大学 | Throttle evaporator |
| CN103017579A (en) * | 2012-12-18 | 2013-04-03 | 中国科学院理化技术研究所 | Plate-fin type heat exchanger with fluid being flowing back and forth in channel |
| CN104389683A (en) * | 2014-11-05 | 2015-03-04 | 中国船舶重工集团公司第七�三研究所 | Compact heat regenerator |
| CN106091784A (en) * | 2015-04-23 | 2016-11-09 | 山东大学 | A kind of heat exchange plate of Cu alloy material |
| CN106403670A (en) * | 2016-11-30 | 2017-02-15 | 洛阳瑞昌石油化工设备有限公司 | Non-welded type pure countercurrent plate heat exchanger |
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Application publication date: 20210629 |