CN101493293A - Plate type heat exchanger - Google Patents
Plate type heat exchanger Download PDFInfo
- Publication number
- CN101493293A CN101493293A CNA2008100933499A CN200810093349A CN101493293A CN 101493293 A CN101493293 A CN 101493293A CN A2008100933499 A CNA2008100933499 A CN A2008100933499A CN 200810093349 A CN200810093349 A CN 200810093349A CN 101493293 A CN101493293 A CN 101493293A
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- China
- Prior art keywords
- heat
- exchangers
- plate
- plate type
- heat transfer
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
- F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
- F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a plate heat exchanger with a low-pressure fall characteristic, capable of reducing a damnification of a heat transferring board caused by heat distortion to a minimum, wherein the heat distortion is caused by the temperature of a working fluid. The plate heat exchangers of the invention are jointed in a mutual superposition status, and the space between two neighboring exchangers is provided with a plurality of heat transferring plates (1) with flow passages for working fluid. Each heat transferring plate (1) is provided with a plurality of chevron or elliptic convex parts (2) and coves (3) in a prescribed interval formed on its surface in turn, and the heat transferring plates are jointed by welding their external edge. In the plate heat exchanger, by means of reducing the flowed friction of the working fluid, it is able to ensure the plate heat exchanger have low-pressure fall characteristic and reduce the damnification of the heat transferring plate caused by the heat distortion to a minimum.
Description
Technical field
The present invention relates to a kind of heat-exchangers of the plate type, relate in particular to a kind of heat-exchangers of the plate type of in absorption refrigerating machine, carrying out heat exchange between the liquid and liquid of being particularly suitable for.
Background technology
Heat exchanger in the absorption refrigerating machine is by carrying out heat exchange with the weak solution of low temperature and the concentrated solution of high temperature, heating flows to the weak solution of regenerator, reduce the required heat energy of solution in the reboiler with this, and the temperature of the high temperature concentrated solution by reducing inflow absorber, reduce the cooling heat in the absorber, thereby improve the thermal efficiency consumption rate of control fuel the time.On the other hand, because under the situation of double effect absorption refrigerator, regenerator is divided into high-temp regenerator and low-temperature regenerator, therefore also have two heat exchangers.To flow into the weak solution of high-temp regenerator and be called high-temperature solution heat exchanger, will flow into the weak solution of low-temperature regenerator and be called the cryogenic fluid heat exchanger from the heat exchanger that the concentrated solution that low-temperature regenerator flows out is carried out heat exchange from the heat exchanger that the concentrated solution that high-temp regenerator flows out is carried out heat exchange.Under the situation of high-temperature solution heat exchanger, the temperature of working fluid is more than 150 ℃, thereby operating temperature is very high.
In the past, absorption refrigerating machine mainly adopted shell-and-tube (shell and tube) heat exchanger with heat exchanger.But, because shell-and-tube exchanger heat exchanger effectiveness on the characteristic of absorption refrigerating machine descends, so adopt the situation of heat-exchangers of the plate type to increase gradually in recent years.
An example as this heat-exchangers of the plate type, can enumerate soldering (brazing) heat-exchangers of the plate type, make this brazed-plate heat exchanger by the following method, promptly, under the state of the overlapped a pair of heat transfer plate that is formed with concavo-convex continuously herringbone pattern (herringbone pattern), by the periphery of welding heat transfer plate it is engaged, and the herringbone pattern by the soldered joint heat transfer plate intersects the contact-making surface that generates mutually.The working fluid of high temperature and the working fluid of low temperature flow through and carry out heat exchange (with reference to patent documentation 1) when being formed on each other space of heat transfer plate.
Yet, in this brazed-plate heat exchanger, owing on whole of heat transfer plate, be formed with concavo-convex herringbone pattern continuously, therefore the contact area between the heat transfer plate is big, gap between the heat transfer plate is little in view of the above, thereby is flowing in the big problem of pressure decline of heat transfer plate working fluid each other.In addition, under the high situation of the temperature of working fluid, exist thermal deformation easily to cause the problem that on heat transfer plate, cracks.Particularly, the temperature difference between the working fluid of the working fluid of Yin Gaowen and low temperature and easily cracking at the junction surface of the soldering of heat transfer plate inside.
The international open WO2006/024340 communique of patent documentation 1:PCT
Summary of the invention
The present invention proposes in view of the existing problem of above-mentioned existing brazed-plate heat exchanger, its purpose is to provide a kind of heat-exchangers of the plate type, it has the low-pressure dropping characteristic, and the damage of the heat transfer plate that thermal deformation can be caused is reduced to minimum, and above-mentioned thermal deformation is produced by the temperature of working fluid.
Aforesaidly the object of the present invention is to provide a kind of heat-exchangers of the plate type, it has many heat transfer plates, above-mentioned many heat transfer plates engage with overlapped state, and be formed with the runner of working fluid in the space between them, on the surface of each Zhang Shangshu heat transfer plate, have a plurality of protuberances and the recess that form in the mode that repeats across predetermined distance.
Heat-exchangers of the plate type according to one embodiment of the present invention is characterized in that, each Zhang Shangshu heat transfer plate is bonded with each other in its periphery.
In addition, the heat-exchangers of the plate type according to one embodiment of the present invention is characterized in that, raised part and above-mentioned recess are arranged into a pair of protuberance and recess in the vertical, and above-mentioned a pair of protuberance and recess repeat to be formed on vertically and reach transversely.
In addition, the heat-exchangers of the plate type according to one embodiment of the present invention is characterized in that, paired raised part and above-mentioned recess are staggered mutually with zigzag in the vertical.
Also have, according to the heat-exchangers of the plate type of one embodiment of the present invention, raised part and above-mentioned recess can be the herringbone shapes, and raised part and above-mentioned recess can have the symmetric shape of Rotate 180 ° at a row with the other row of this row adjacency.
In addition, according to the heat-exchangers of the plate type of another embodiment of the present invention, raised part and above-mentioned recess can be elliptical shapes.
Heat-exchangers of the plate type of the present invention is because protuberance is spaced with recess and heat transfer plate contact area each other is also relative less, therefore compare the resistance that is subjected to when working fluid flows with existing brazed-plate heat exchanger little, and heat-exchangers of the plate type of the present invention thus has the low-pressure dropping characteristic.
In addition, in heat-exchangers of the plate type of the present invention, because do not weld on the inboard of the heat transfer plate that directly contacts with working fluid, so the damage of the heat transfer plate that thermal deformation can be caused is reduced to minimum, this thermal deformation is by the temperature generation of working fluid.
Description of drawings
Fig. 1 is the vertical view of heat transfer plate of the heat-exchangers of the plate type of one embodiment of the present invention.
The state that protuberance and recess intersect under the state of Fig. 2 two heat transfer plates that to be illustrated in overlapped shown in Figure 1.
Fig. 3 is the cutaway view of cutting open along the A-A line of Fig. 2 under the state of overlapping three heat transfer plates shown in Figure 1.
Fig. 4 is the chart of the pressure dropping characteristic of heat-exchangers of the plate type more shown in Figure 1 and existing brazed-plate heat exchanger.
Fig. 5 is the vertical view of heat transfer plate of the heat-exchangers of the plate type of another embodiment of the invention.
The state that protuberance and recess intersect under the state of Fig. 6 two heat transfer plates that to be illustrated in overlapped shown in Figure 5.
Fig. 7 is the cutaway view of cutting open along the B-B line of Fig. 6 under the state of overlapping 3 heat transfer plates shown in Figure 5.
The specific embodiment
Below, the embodiment that present invention will be described in detail with reference to the accompanying.
Fig. 1 is the vertical view of heat transfer plate 1 of the heat-exchangers of the plate type of one embodiment of the present invention.
As shown in Figure 1, heat transfer plate 1 has a plurality of protuberances 2 and the recess of arranging across the predetermined distance systematicness 3.In the present embodiment, protuberance 2 and recess 3 have the chevron shape of prescribed level.Specifically, protuberance 2 and recess 3 vertically are arranged into a pair of, by vertically and transversely repeat to form this a pair of protuberance 2 and recess 3, thereby finish the shape of heat transfer plate 1.In addition, a row and with the another one row of this row adjacency in, a pair of protuberance 2 and recess 3 Rotate 180s ° and form symmetric shape and in the vertical with zigzag arrangement mutually with staggering.
Form heat-exchangers of the plate type by overlapping above-mentioned heat transfer plate 1 in the opposite direction.Fig. 2 is the state that protuberance and recess intersect under the state of two heat transfer plates that to be illustrated in overlapped shown in Figure 1.As shown in Figure 2,1 of two heat transfer plate is in contact with one another in the intersect each other part (part of representing with hachure in Fig. 2) of fork of recess 3.Therefore, in the heat-exchangers of the plate type of present embodiment, heat transfer plate 1 each other between contact area and existing brazed-plate heat exchanger in compare very little.
Make the heat-exchangers of the plate type of present embodiment by following method, promptly, mold pressing is processed after a plurality of protuberances 2 and the recess 3 on plate material, not (not promptly at heat transfer plate 1 inboard contact-making surface each other, the crosspoint of recess 1) welds on, and only weld in the periphery of heat transfer plate 1.
Fig. 3 is the cutaway view of cutting open along the A-A line of Fig. 2 under the state of overlapping three heat transfer plates 1 shown in Figure 1.As shown in Figure 3, in heat transfer plate 1 space each other, the runner that the working fluid of formation high temperature and the working fluid of low temperature can flow.The working fluid of high temperature and the working fluid of low temperature carry out heat exchange (with reference to the arrow of Fig. 3) mutually when heat transfer plate 1 runner each other flows round about.
Because protuberance 2 and recess 3 separate, working fluid so also can flow in the space between it, and heat transfer plate 1 contact area each other is also less relatively, so compare the resistance that is subjected to when working fluid flows with existing brazed-plate heat exchanger little, the heat-exchangers of the plate type of present embodiment has the low-pressure dropping characteristic thus.
In addition, in the heat-exchangers of the plate type of present embodiment, because do not weld on the inboard of the heat transfer plate 1 that directly contacts with working fluid, so the damage of the heat transfer plate 1 that thermal deformation can be caused is reduced to minimum, this thermal deformation is produced by the temperature of working fluid.
Fig. 4 is the chart of the pressure dropping characteristic of heat-exchangers of the plate type more shown in Figure 1 and existing brazed-plate heat exchanger.
As shown in Figure 4, under the condition of identical working fluid flow and temperature, the results of comparative experiment that the heat-exchangers of the plate type and the existing brazed-plate heat exchanger of present embodiment carried out the differential pressure characteristic, the heat-exchangers of the plate type of present embodiment is compared with existing brazed-plate heat exchanger, and the flow of working fluid increases the pressure dropping characteristic with regard to showing low 2～3 times more more.
Fig. 5 is the vertical view of heat transfer plate of the heat-exchangers of the plate type of another embodiment of the invention.
As shown in Figure 5, heat transfer plate 10 has a plurality of protuberances 11 and the recess of arranging across the predetermined distance systematicness 12.In the present embodiment, protuberance 11 and recess 12 elliptical shape with prescribed level.Specifically, protuberance 11 and recess 12 vertically are arranged into a pair of, thereby by vertically and transversely repeat to form the shape that this a pair of protuberance 11 and recess 12 are finished heat transfer plate 10.In addition, a pair of protuberance 11 and recess 12 zigzag and arrangement mutually in the vertical with staggering.
The state that protuberance 11 and recess 12 intersect under the state of Fig. 6 two heat transfer plates 10 that to be illustrated in overlapped shown in Figure 5.As shown in Figure 6, two heat transfer plates 10 only are in contact with one another in the intersect each other part (part of representing with hachure in Fig. 6) of fork of recess 12.Therefore, in the heat-exchangers of the plate type of present embodiment, comparing in heat transfer plate 10 contact area each other and the embodiment shown in Figure 1 is big, but with existing brazed-plate heat exchanger in compare little.
Fig. 7 cuts cutaway view open along the B-B line of Fig. 6 under the state of overlapping three heat transfer plates 10 shown in Figure 5.As shown in Figure 7, in heat transfer plate 10 space each other, the runner that the working fluid of formation high temperature and the working fluid of low temperature can flow.The working fluid of high temperature and the working fluid of low temperature carry out heat exchange (with reference to the arrow of Fig. 6) mutually when heat transfer plate 10 runner each other flows round about.
It also is the heat-exchangers of the plate type of making present embodiment by following method, promptly, mold pressing is processed after a plurality of protuberances 11 and the recess 12 on plate material, not (not promptly at heat transfer plate 10 inboard contact-making surface each other, the part that recess 12 is overlapping) welds on, and only weld in the periphery of heat transfer plate 10.
In addition, in the heat-exchangers of the plate type of present embodiment, working fluid also can flow in the space that protuberance 11 and recess 12 separate each other, and heat transfer plate 10 contact area each other is relatively little, therefore compare the resistance that is subjected to when working fluid flows with existing brazed-plate heat exchanger little, and the heat-exchangers of the plate type of present embodiment has the low-pressure dropping characteristic thus.
In addition, in the heat-exchangers of the plate type of present embodiment, also because do not weld on the inboard of the heat transfer plate 10 that directly contacts with working fluid, so the damage of the heat transfer plate 10 that thermal deformation can be caused is reduced to minimum, this thermal deformation is by the temperature generation of working fluid.
As described above, the preferred implementation that the present invention is specific has not only been carried out diagram but also has been illustrated, but the present invention is not limited to above-mentioned embodiment, in the scope that does not exceed aim of the present invention in the technical scheme, as long as have the people of the general knowledge of the technical field of the invention, no matter anyone can both carry out various distortion.
Particularly, in the above-described embodiment, for the example of herringbone shape and elliptical shape, but the shape of protuberance and recess is not limited to this, for example, also can be different shapes such as square or circle as the shape of protuberance and recess.
Claims (7)
1. a heat-exchangers of the plate type has many heat transfer plates, and above-mentioned many heat transfer plates engage with overlapped state, and are formed with the runner of working fluid in the space between them, it is characterized in that,
On the surface of each Zhang Shangshu heat transfer plate, have a plurality of protuberances and the recess that form in the mode that repeats across predetermined distance.
2. heat-exchangers of the plate type as claimed in claim 1 is characterized in that, each Zhang Shangshu heat transfer plate is bonded with each other in its periphery.
3. heat-exchangers of the plate type as claimed in claim 1 is characterized in that, raised part and above-mentioned recess are arranged into a pair of protuberance and recess in the vertical, and above-mentioned a pair of protuberance and recess repeat to be formed on vertically and reach transversely.
4. heat-exchangers of the plate type as claimed in claim 3 is characterized in that, paired raised part and above-mentioned recess are staggered mutually with zigzag in the vertical.
5. heat-exchangers of the plate type as claimed in claim 1 is characterized in that, raised part and above-mentioned recess are the herringbone shapes.
6. heat-exchangers of the plate type as claimed in claim 5 is characterized in that, raised part and above-mentioned recess a row and with the other row of this row adjacency, have the symmetric shape of Rotate 180 °.
7. heat-exchangers of the plate type as claimed in claim 1 is characterized in that, raised part and above-mentioned recess are elliptical shapes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080006779A KR20090080808A (en) | 2008-01-22 | 2008-01-22 | Plate Heat Exchanger |
| KR1020080006779 | 2008-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101493293A true CN101493293A (en) | 2009-07-29 |
Family
ID=40924005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100933499A Pending CN101493293A (en) | 2008-01-22 | 2008-04-18 | Plate type heat exchanger |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2009174841A (en) |
| KR (1) | KR20090080808A (en) |
| CN (1) | CN101493293A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644757A (en) * | 2013-12-17 | 2014-03-19 | 上海电气电站设备有限公司 | Heat exchange plate and heat exchange plate core for plate heat exchanger |
| CN104807361A (en) * | 2014-01-29 | 2015-07-29 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanging plate and plate heat exchanger comprising heat exchanging plate |
| WO2017140851A1 (en) * | 2016-02-19 | 2017-08-24 | Valeo Termico, S.A. | Circulation duct for conveying a fluid of a heat exchanger, and heat exchanger |
| CN110470163A (en) * | 2019-09-11 | 2019-11-19 | 陕西益信伟创智能科技有限公司 | Heat exchanger core body and heat exchanger with flow-disturbing skin texture |
| CN110926256A (en) * | 2019-11-06 | 2020-03-27 | 华为技术有限公司 | Heat exchange plate and heat exchanger comprising same |
| CN112601927A (en) * | 2018-08-29 | 2021-04-02 | 株式会社日阪制作所 | Plate heat exchanger |
| FR3130360A1 (en) * | 2021-12-10 | 2023-06-16 | Naval Group | Corrugated exchange surface |
| WO2023116296A1 (en) * | 2021-12-22 | 2023-06-29 | 丹佛斯有限公司 | Plate heat exchanger |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2502932C2 (en) * | 2010-11-19 | 2013-12-27 | Данфосс А/С | Heat exchanger |
| JP2012207858A (en) * | 2011-03-30 | 2012-10-25 | Kamekawa Kogyo Kk | Heating medium evaporation reduction device in solar hot water system |
| KR101670939B1 (en) | 2015-04-14 | 2016-10-31 | (주)일렉콤 | Driving method of virtual reality walking platform system |
| IL259897A (en) * | 2018-06-07 | 2018-07-31 | Pessach Seidel | Plate heat exchanger with increased heat transfer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5030145A (en) * | 1973-07-19 | 1975-03-26 | ||
| JPS55105791U (en) * | 1979-01-18 | 1980-07-24 | ||
| SE528629C2 (en) * | 2004-09-08 | 2007-01-09 | Ep Technology Ab | Groove pattern for heat exchanger |
-
2008
- 2008-01-22 KR KR1020080006779A patent/KR20090080808A/en not_active Application Discontinuation
- 2008-04-11 JP JP2008103760A patent/JP2009174841A/en active Pending
- 2008-04-18 CN CNA2008100933499A patent/CN101493293A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644757A (en) * | 2013-12-17 | 2014-03-19 | 上海电气电站设备有限公司 | Heat exchange plate and heat exchange plate core for plate heat exchanger |
| CN111238266A (en) * | 2014-01-29 | 2020-06-05 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanger plate and plate heat exchanger with the same |
| EP3101376A4 (en) * | 2014-01-29 | 2017-11-22 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Heat exchanging board and board-type heat exchanger provided with heat exchanging board |
| RU2643999C1 (en) * | 2014-01-29 | 2018-02-06 | Данфосс Майкро Ченл Хит Иксчейнджер (Цзясин) Ко., Лтд. | Heat exchange panel and panel type heat exchanger, supplied with heat exchanger panel |
| US10274261B2 (en) | 2014-01-29 | 2019-04-30 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd | Heat exchanging board and board-type heat exchanger provided with heat exchanging board |
| WO2015113468A1 (en) * | 2014-01-29 | 2015-08-06 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanging board and board-type heat exchanger provided with heat exchanging board |
| CN104807361A (en) * | 2014-01-29 | 2015-07-29 | 丹佛斯微通道换热器（嘉兴）有限公司 | Heat exchanging plate and plate heat exchanger comprising heat exchanging plate |
| WO2017140851A1 (en) * | 2016-02-19 | 2017-08-24 | Valeo Termico, S.A. | Circulation duct for conveying a fluid of a heat exchanger, and heat exchanger |
| CN112601927A (en) * | 2018-08-29 | 2021-04-02 | 株式会社日阪制作所 | Plate heat exchanger |
| CN110470163A (en) * | 2019-09-11 | 2019-11-19 | 陕西益信伟创智能科技有限公司 | Heat exchanger core body and heat exchanger with flow-disturbing skin texture |
| CN110926256A (en) * | 2019-11-06 | 2020-03-27 | 华为技术有限公司 | Heat exchange plate and heat exchanger comprising same |
| WO2021088940A1 (en) * | 2019-11-06 | 2021-05-14 | 华为技术有限公司 | Heat exchange plate and heat exchanger containing same |
| CN110926256B (en) * | 2019-11-06 | 2022-03-08 | 华为数字能源技术有限公司 | Heat exchange plate and heat exchanger comprising same |
| FR3130360A1 (en) * | 2021-12-10 | 2023-06-16 | Naval Group | Corrugated exchange surface |
| WO2023116296A1 (en) * | 2021-12-22 | 2023-06-29 | 丹佛斯有限公司 | Plate heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009174841A (en) | 2009-08-06 |
| KR20090080808A (en) | 2009-07-27 |
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Open date: 20090729 |