CN202734627U - Plate-type heat exchanger - Google Patents
Plate-type heat exchanger Download PDFInfo
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- CN202734627U CN202734627U CN 201220402237 CN201220402237U CN202734627U CN 202734627 U CN202734627 U CN 202734627U CN 201220402237 CN201220402237 CN 201220402237 CN 201220402237 U CN201220402237 U CN 201220402237U CN 202734627 U CN202734627 U CN 202734627U
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Abstract
The utility model provides a plate-type heat exchanger. The plate-type heat exchanger comprises at least three piled up plates to form at least two runners. At least one layer of strengthened plate is arranged in at least one runner. The strengthened plates are arranged in a plate form, a perforated plate form or a screen form. The plate heat exchanger is capable of increasing the flow area of one side with low convective heat transfer coefficient and the actual heat exchange area pointedly on the basis that the turbulence intensity of the plate-type heat exchanger is kept unchanging or even improved, and therefore the total heat transfer coefficient of the plate-type heat exchanger is improved. The heat transfer efficiency of the plate-type heat exchanger in the process of liquid-to-liquid heat transfer, gas-to-liquid heat transfer and gas-to-gas heat transfer, especially for gas-to-liquid heat transfer, is improved. Then the applied range of the plate-type heat exchanger is widened.
Description
Technical field
The utility model relates to a kind of heat exchanger, relates more specifically to a kind of plate type heat exchanger.
Background technology
Plate type heat exchanger is a kind of new and effective, the compact heat exchanger that obtains in recent decades developing rapidly with extensive use, is to be formed by a series of plate closed assemblies with certain bellows-shaped, as shown in Figure 1.Fig. 1 has provided a cross sectional shape of common herringbone wave's card runner, form first flow 4 between the first plate 1 and the second plate 2, form the second runner 5 between the second plate 2 and the 3rd plate 3 so that cold fluid and hot fluid is separated, the plate 1,2,3 that is closed assembly forms two runners 4,5, cold fluid and hot fluid is flowed in the runner 4,5 of plate 2 both sides respectively, carry out exchange heat by plate 2.Because runner is a runner that shape of cross section is changeable, tortuous between its plate, it makes the fluid turbulization effectively, and heat convection is strengthened, thereby has reduced the thermal resistance of fluid.The thin plate manufacturing of plate 2 usefulness 0.5～1.5mm has reduced the wall thermal resistance; Simultaneously because of flow regime for highly turbulent, make dirt as thin as a wafer, its corresponding thermal resistance is also little.Plate type heat exchanger has a series of advantage: 1. overall heat-transfer coefficient is high; Its overall heat-transfer coefficient is about 3～5 times of shell and tube exchanger.2. lightweight, volume is little, compact conformation; Heat exchange area in its unit volume is about 3～5 times of shell-tube type, and floor space only is 1/5～1/6 of shell-tube type.3. be easy to realize pure adverse current, and terminal temperature difference can be very little, can realize little different transfer of heat.4. maximization and miniaturization are all very convenient.5. easy to manufacture, selection is various etc.
But, plate type heat exchanger also has some intrinsic shortcomings, because the mean gap of runner is 2～8mm between plate, for the heat transferring medium that contains larger particles or fiber, runner stops up easily, occurred forming various asymmetric runners with special plate for this reason, Fig. 2 has provided the schematic diagram of asymmetric runner, wherein, this plate type heat exchanger is depicted as the plate 1` that has certain bellows-shaped by three equally, 2`, the 3` closed assembly forms, and the cross-sectional area of the second runner 5` of plate 2` both sides can reach about 2 times with the ratio of the cross-sectional area of first flow 4`; Analyze the structure of various asymmetric runners, they all are only applicable to the situation that wide runner is high-pressure fluid; To when the pressure difference at cold fluid and hot fluid two ends is larger (when particularly the pressure of narrow runner is larger), can not bring into play the superiority of plate type heat exchanger.Because existing on one side phase transformation or specific heat capacity larger, under the condition of economic velocity, cause the temperature rise gap of cold fluid and hot fluid to approach or when surpassing 1 order of magnitude (can arrive 2 orders of magnitude such as the temperature rise of water and air).Plate type heat exchanger is difficult to the image tube shell heat exchanger like that by increasing fin in addition, changes heat transfer area, also, makes the heat transfer area of both sides unequal.This also is a large amount of various air coolers that use of each industrial trade and vapor compression refrigeration device hollow cold type condenser and evaporimeter and do not have one of reason of fine use plate type heat exchanger.
The utility model content
Solution when using plate type heat exchanger to carry out heat exchange when the purpose of this utility model is to provide a kind of thermal capacity that can be applied to cold fluid and hot fluid to differ larger.
(are phase-change heat-exchanges of water vapour and air such as a large amount of air coolers that use of air cooling power plant when differing larger for the thermal capacity of cold fluid and hot fluid, wherein water vapour is the fluid that is condensed, air is cooling fluid) heat exchanger, the technical solution of the utility model is: a kind of plate type heat exchanger, comprise that the plate of at least three closed assemblies to form at least two runners, is provided with at least one deck reinforcement sheet at least one runner.
Described reinforcement sheet is plate form, perforated plate form or screen cloth form.
Described reinforcement sheet contacts with described plate.
Described reinforcement sheet is straight perforated plate or screen cloth.
Described reinforcement sheet is herringbone wave's card, vertical corrugated plating or the straight corrugated plating of level.
The shape of described reinforcement sheet is identical or basically identical from the shape of plate or fully different.
Adjacent described plate does not contact.
Described reinforcement sheet does not contact with described plate.
Described plate type heat exchanger is full welded type, half welded type or disassemble plate type heat-exchanger.
The form of the reinforcement sheet of heat exchanger of the present utility model can be various common plate and the special plate that uses at present.The material of strengthening sheet can be metal or other any suitable materials.Pore quantity on the reinforcement sheet, position and large I are according to operating position, processing and other conditional decisions.The monnolithic case of strengthening sheet can be straight, or basically identical from adjacent plate or identical or fully different.The number of plies of strengthening sheet can be one or more layers.Strengthen between the sheet, strengthen between sheet and the adjacent plate close contact can be arranged, or do not have close contact.
Pass through technique scheme, plate type heat exchanger provided by the utility model is under the identical conditions of work such as heat exchange amount, install additional and strengthen circulation area and the actual heat exchange area that sheet can improve little that side of convection transfer rate (such as air side) targetedly, improve surface film thermal conductance, thereby improve the Composite Walls of plate type heat exchanger, the efficient of plate type heat exchanger when liquid-liquid, solution-air, gas-gas heat exchange (particularly solution-air heat exchange) is improved, has widened the range of application of plate type heat exchanger.On the other hand, strengthen the actual internal area that sheet can increase this side (such as air side) runner by increasing at less that side of thermal capacity (such as air side) runner, significantly improved the total flow of thermal capacity smaller side (such as air side), also namely improved the thermal capacity of this side, avoided because the significantly rising of the too high power that causes of thermal capacity smaller side (such as air side) flow velocity.Further, there is being the phase transformation side to install additional to strengthen the sheet can be when increasing effective heat exchange area, significantly reducing the fluid film thickness of condensation or evaporation of plate, further improving heat exchange efficiency.
Description of drawings
Fig. 1 is the runner schematic diagram of common plate type heat exchanger;
Fig. 2 is the runner schematic diagram of asymmetric plate type heat exchanger or unequal section plate type heat exchanger;
Fig. 3 is the runner schematic diagram that installs straight screen cloth in a runner of heat exchanger additional according to preferred embodiment structure of the present utility model;
Fig. 4 installs the straight perforated plate of one deck according to what a preferred embodiment of the present utility model was constructed additional in runner of heat exchanger, install two-layer straight perforated plate and the runner schematic diagram of one deck and identical another perforated plate 64 of plate 1 shape in another runner additional;
The runner schematic diagram of the perforated plate that the perforated plate that Fig. 5 is two-layer according to installing additional in runner of heat exchanger of preferred embodiment structure of the present utility model and the adjacent plate shape is basically identical and one deck are straight;
Fig. 6 be according to preferred embodiment structure of the present utility model in runner of heat exchanger, install additional four layers with the straight perforated plate of the basically identical perforated plate of adjacent plate shape and one deck;
Fig. 7 is the runner schematic diagram that only installs one deck and the identical perforated plate 64` of the first plate 1 shape in runner of heat exchanger additional according to preferred embodiment structure of the present utility model;
Fig. 8 similarly schemes with Fig. 7, wherein perforated plate 64a and the adjacent discontiguous runner schematic diagram of plate;
Fig. 9 only installs additional two-layer in runner of heat exchanger and the runner schematic diagram identical perforated plate of plate shape according to what a preferred embodiment of the present utility model was constructed, when the shape of all plates was identical, then the ratio of the circulation area of two runners was 1:3.
The specific embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present utility model, and be described in detail, enable to understand better function, the characteristics of plate type heat exchanger of the present utility model.
In this article, screen cloth refers to the web-shaped product with penetrability that punching by braiding wiry, plate etc. is made.
In this article, perforated plate refers to the plate that plate is provided with at least one perforation.Wherein, the shape of plate can be adjusted according to practical application, and the shape of perforation, quantity, position and size all can be adjusted according to operating position, processing conditions and other conditions.
In this article, the way of contact between the adjacent plate comprises two kinds: if the reinforcement sheet is not set between the adjacent plate, then plate and plate can have direct physical contact point, and then adjacent plate realizes directly contact; If be provided with the reinforcement sheet between the adjacent plate, and this reinforcement sheet and this adjacent plate all have direct physical contact point, and then adjacent plate is strengthened sheet by this and realized mediate contact.
In following examples, plate type heat exchanger can be full welded type, half welded type or detachable, because this full welded type, half welded type or disassemble plate type heat-exchanger are those skilled in the art's known technology, does not repeat them here.
In following examples, plate type heat exchanger comprises at least three plates (after this being called as the first plate 1, the second plate 2, the 3rd plate 3) of closed assembly, form at least two runners (after this being called as first flow 4, the second runner 5), be provided with at least one at least one described runner and strengthen sheet.When this reinforcement sheet is the plate form, be called as the 4th plate, the 5th plate When this reinforcement sheet is the perforated plate form, be called as the first perforated plate, the second perforated plate When this reinforcement sheet is the screen cloth form, be called as the first screen cloth, the second screen cloth ...
Specifically with reference to the accompanying drawings 3 as can be known, the plate type heat exchanger according to preferred embodiment structure of the present utility model is a kind of high-performance heat exchanger that is formed by a series of plate closed assemblies with certain bellows-shaped.Its three plates only are shown, i.e. the first plate 1, the second plate 2 and the 3rd plate 3 in Fig. 3.Form first flow 4 between the first plate 1 and the second plate 2, form the second runner 5 between the second plate 2 and the 3rd plate 3 so that cold fluid and hot fluid is separated, this cold fluid and hot fluid is flowed in the runner 4,5 of the second plate 2 both sides respectively, carry out exchange heat by the second plate 2.
In the second runner 5, be provided with a straight screen cloth 6 and form the reinforcement sheet.
In the present embodiment, the second plate 2 and straight screen cloth 6, the 3rd plate 3 have close contact 7 with straight screen cloth 6.
Increase by the turbulent extent in these straight screen cloth 6, the second runners 5, thereby improve the coefficient of heat transfer.And the effect of the similar fin of these screen cloth 6 main performances, increase heat exchange area, further improve total heat exchange efficiency.
Those skilled in the art will appreciate that the screen cloth in the present embodiment can replace with perforated plate.
Specifically with reference to the accompanying drawings 4 as can be known, the plate type heat exchanger according to preferred embodiment structure of the present utility model is a kind of high-performance heat exchanger that is formed by a series of plate closed assemblies with certain bellows-shaped.Its three plates only are shown, i.e. the first plate 1, the second plate 2 and the 3rd plate 3 in Fig. 4.Form first flow 4 between the first plate 1 and the second plate 2, form the second runner 5 between the second plate 2 and the 3rd plate 3 so that cold fluid and hot fluid is separated, it is flowed in the runner 4,5 of the second plate 2 both sides respectively, carry out the exchange heat of cold fluid and hot fluid by the second plate 2 or the 3rd plate 3.
Plate type heat exchanger according to the present embodiment structure comprises as the first perforated plate 61, the second perforated plate 62, the 3rd perforated plate 63 and the 4th plate 64 of strengthening sheet.
In first flow 4, be provided with first a straight perforated plate 61.In the present embodiment, the first plate 1 and the second plate 2 have the first close contact 71, and this first perforated plate 61 passes described the first close contact 71 successively.
In the second runner 5, be provided with second, third straight perforated plate 62,63, between this second perforated plate 62 and the 3rd perforated plate 63, be provided with the 4th plate 64.
In the present embodiment, it is identical with the first plate 1 that the shape of the 4th plate 64 is depicted as, the 4th plate 64 in the second runner 5 with the second plate 2, the 3rd plate 3 closed assemblies, so that the 4th plate 64 and the second plate 2 have the second close contact 72, the 4th plate 65 and the 3rd plate 3 have the 3rd close contact 73, this second perforated plate 62 passes successively described the second close contact 72, the three perforated plates 63 and passes successively described the 3rd close contact 73.
In the present embodiment, the 4th plate 64 can not have perforated design, this second runner 5 is divided into upper flow passage 51 and lower flow passage 52, wherein, fluid in the upper flow passage 51 carries out the exchange heat of cold fluid and hot fluid by the second plate 2, and the fluid in the lower flow passage 52 carries out the exchange heat of cold fluid and hot fluid by the 3rd plate 3.Certainly, the 4th plate 64 also can be perforated plate or screen cloth.
Effect by the similar fin of the first perforated plate 61 main performances increases heat exchange area, improves the coefficient of heat transfer of this side.Effect by the second perforated plate 62, the 3rd perforated plate 63 and the similar fin of the 4th plate 64 performances therebetween increases heat exchange area, improves the coefficient of heat transfer of this side; Further, the installing of this second perforated plate 62, the 3rd perforated plate 63 and the 4th plate 64 therebetween so that the distance between the second plate 2 and the 3rd plate 3 increase, thereby significantly improve the valid circulation area of the second runner 5.
Those skilled in the art will appreciate that the perforated plate in the present embodiment can replace with screen cloth.
Specifically with reference to the accompanying drawings 5 as can be known, the plate type heat exchanger according to preferred embodiment structure of the present utility model is a kind of high-performance heat exchanger that is formed by a series of plate closed assemblies with certain bellows-shaped.Its three plates only are shown, i.e. the first plate 1, the second plate 2 and the 3rd plate 3 in Fig. 4.Form first flow 4 between the first plate 1 and the second plate 2, form the second runner 5 between the second plate 2 and the 3rd plate 3 so that cold fluid and hot fluid is separated, it is flowed in the runner 4,5 of the second plate 2 both sides respectively, carry out the exchange heat of cold fluid and hot fluid by the second plate 2.
Plate type heat exchanger according to the present embodiment structure comprises as the first, second, third perforated plate 61`, 62`, the 63` that strengthen sheet.
In the second runner 5, be provided with successively first, second, third perforated plate 61`, 62`, 63`.Wherein, this second perforated plate 62` is depicted as straight perforated plate; And the shape of the shape of the first perforated plate 61`, 63` and adjacent the second plate 2 is basically identical, the so-called basically identical bellows-shaped that refers to perforated plate, spacing etc. and second, third plate 2,3 identical, and only the ripple height is different.Namely the wave height of the waveform that has of the first, the 3rd perforated plate 61`, 63` is lower than respectively waveform that the second plate 2, the 3rd plate 3 have in the wave height of relevant position.In the present embodiment, the second plate 2 and the 3rd plate 3 have close contact 7`, and first, second, third perforated plate 61`, 62`, 63` all pass described close contact 7` and arrange.
By first, second, third perforated plate 61`, 62`, 63`, mainly bring into play the effect of similar fin, increase heat exchange area, to improve this side coefficient of heat transfer.
Those skilled in the art will appreciate that the perforated plate in the present embodiment can replace with screen cloth.
Specifically with reference to the accompanying drawings 6 as can be known, similar to Example 3 according to the plate type heat exchanger of the preferred embodiment structure of the present utility model, its difference only is the number of perforated plate.In the present embodiment, the number of perforated plate is depicted as 5.
Specifically with reference to the accompanying drawings 7 as can be known, similar to Example 2 according to the plate type heat exchanger of preferred embodiment structure of the present utility model, its difference only is to omit straight perforated plate wherein, only keeps as the 4th plate 64` that strengthens sheet.
In the present embodiment, can not have perforated design on the 4th plate 64`, this second runner 5 is divided into upper flow passage 51` and lower flow passage 52`, wherein, fluid among the upper flow passage 51` carries out the exchange heat of cold fluid and hot fluid by the second plate 2, and the fluid among the lower flow passage 52` carries out the exchange heat of cold fluid and hot fluid by the 3rd plate 3.
In the present embodiment, can have perforated design on the 4th plate 64`, the fluid in the second runner 5 carries out the exchange heat of cold fluid and hot fluid by the second plate 2.
Specifically with reference to the accompanying drawings 8 as can be known, plate type heat exchanger according to preferred embodiment structure of the present utility model is similar to Example 5, wherein, the 4th plate 64a can not form close contact with the second plate 2, the 3rd plate 3, thereby the circulation area of runner 5 is arbitrarily increased, with the flow of suitable increase runner 5 inner fluids.This moment, flow-disturbing plate 64a only worked to strengthen turbulent flow.Should be appreciated that the shape of the 4th plate of this moment can be identical or basically identical from the shape of adjacent panel or fully different.
Embodiment 7
Specifically with reference to the accompanying drawings 9 as can be known, the plate type heat exchanger according to preferred embodiment structure of the present utility model is a kind of high-performance heat exchanger that is formed by a series of plate closed assemblies with certain bellows-shaped.Its three plates only are shown, i.e. the first plate 1, the second plate 2 and the 3rd plate 3 in Fig. 4.Form first flow 4 between the first plate 1 and the second plate 2, form the second runner 5 between the second plate 2 and the 3rd plate 3 so that cold fluid and hot fluid is separated, it is flowed in the runner 4,5 of the second plate 2 both sides respectively, carry out the exchange heat of cold fluid and hot fluid by the second plate 2.
Plate type heat exchanger according to the present embodiment structure comprises as first, second perforated plate 61``, the 62`` that strengthen sheet.
In the second runner 5, be provided with successively first, second perforated plate 61``, 62``.Wherein, first, second perforated plate 61``, 62`` in the second runner 5 with the second plate 2, the 3rd plate 3 closed assemblies, so that the first perforated plate 61`` and the second plate 2 have the first close contact 71``, the first perforated plate 61`` and the second perforated plate 62`` have the first close contact 72``, and the second perforated plate 62`` and the 3rd plate 3 have the 3rd close contact 73``.When the shape of first, second perforated plate 61``, 62`` and the first plate 1, when the second plate 2 is identical, the ratio of the circulation area of first flow 4 and the second runner 5 is 1:3.
Embodiment 8
In the concrete application of embodiment 6, be depicted as the embodiment of certain marine generator air cooling device, cooling water side is identical with common plate type heat exchanger, the air that is cooled has installed two-layer and plate 1,2, the identical perforated plate 61`` of 3 shapes, 62`` additional, adopting the effective heat transfer area of monolithic is the herringbone corrugated cardboard sheet of 0.18m2, and its ripple height is 4.5mm.The runner pattern is cross-flow.The fin-tube type air cooler that is about this kind plate type heat exchanger replacement heat exchange area 60m2 copper pipe copper fin of 6m2 with total heat conduction area (cooling water side).Slightly be better than at heat transfer effect under the condition of fin-tube type air cooler of copper pipe copper fin, volume and weight all only is half of fin-tube type air cooler of copper pipe copper fin, and this has huge superiority for mobile unit.
Above-described, be preferred embodiment of the present utility model only, be not to limit scope of the present utility model, above-described embodiment of the present utility model can also make a variety of changes.Be that simple, the equivalence that every claims according to the utility model application and description are done changes and modification, all fall into the claim protection domain of the utility model patent.The utility model not detailed description be the routine techniques content.
Claims (9)
1. a plate type heat exchanger comprises that the plate of at least three closed assemblies to form two runners, is characterized in that at least, is provided with at least one deck reinforcement sheet at least one runner.
2. plate type heat exchanger as claimed in claim 1 is characterized in that, described reinforcement sheet is plate form, perforated plate form or screen cloth form.
3. plate type heat exchanger as claimed in claim 1 is characterized in that, described reinforcement sheet contacts with described plate.
4. plate type heat exchanger as claimed in claim 1 is characterized in that, described reinforcement sheet is straight perforated plate or screen cloth.
5. plate type heat exchanger as claimed in claim 1 is characterized in that, described reinforcement sheet is herringbone wave's card, vertical corrugated plating or the straight corrugated plating of level.
6. plate type heat exchanger as claimed in claim 1 is characterized in that, the shape of described reinforcement sheet is identical or basically identical from the shape of plate or fully different.
7. plate type heat exchanger as claimed in claim 1 is characterized in that, adjacent described plate does not contact.
8. plate type heat exchanger as claimed in claim 1 is characterized in that, described reinforcement sheet does not contact with described plate.
9. plate type heat exchanger as claimed in claim 1 is characterized in that, described plate type heat exchanger is full welded type, half welded type or disassemble plate type heat-exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402237 CN202734627U (en) | 2012-08-14 | 2012-08-14 | Plate-type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402237 CN202734627U (en) | 2012-08-14 | 2012-08-14 | Plate-type heat exchanger |
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| CN202734627U true CN202734627U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220402237 Expired - Fee Related CN202734627U (en) | 2012-08-14 | 2012-08-14 | Plate-type heat exchanger |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767979A (en) * | 2012-08-14 | 2012-11-07 | 覃新川 | Plate type heat exchanger |
| CN103697737A (en) * | 2014-01-06 | 2014-04-02 | 昌图县八面城镇百道尔热风炉厂 | Baffling fin of heat exchanger |
| CN104033881A (en) * | 2013-03-04 | 2014-09-10 | 同济大学 | Plate-and-shell type coal economizer |
| CN104236350A (en) * | 2014-09-25 | 2014-12-24 | 德艾柯工程技术（上海）有限公司 | Vertical type evaporator |
| CN105222624A (en) * | 2015-11-10 | 2016-01-06 | 洛阳瑞昌石油化工设备有限公司 | A kind of gas phase and liquid phase heat exchange high-pressure resisting plate heat exchanger |
| WO2018141245A1 (en) * | 2017-02-03 | 2018-08-09 | 孟莫克化工成套设备(上海)有限公司 | Plate-type gas-to-gas heat exchanger |
-
2012
- 2012-08-14 CN CN 201220402237 patent/CN202734627U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767979A (en) * | 2012-08-14 | 2012-11-07 | 覃新川 | Plate type heat exchanger |
| CN104033881A (en) * | 2013-03-04 | 2014-09-10 | 同济大学 | Plate-and-shell type coal economizer |
| CN104033881B (en) * | 2013-03-04 | 2016-08-03 | 同济大学 | A kind of shell-and-plate economizer |
| CN103697737A (en) * | 2014-01-06 | 2014-04-02 | 昌图县八面城镇百道尔热风炉厂 | Baffling fin of heat exchanger |
| CN104236350A (en) * | 2014-09-25 | 2014-12-24 | 德艾柯工程技术（上海）有限公司 | Vertical type evaporator |
| CN105222624A (en) * | 2015-11-10 | 2016-01-06 | 洛阳瑞昌石油化工设备有限公司 | A kind of gas phase and liquid phase heat exchange high-pressure resisting plate heat exchanger |
| WO2018141245A1 (en) * | 2017-02-03 | 2018-08-09 | 孟莫克化工成套设备(上海)有限公司 | Plate-type gas-to-gas heat exchanger |
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