CN108592666B - Herringbone plate of plate heat exchanger - Google Patents
Herringbone plate of plate heat exchanger Download PDFInfo
- Publication number
- CN108592666B CN108592666B CN201810406163.8A CN201810406163A CN108592666B CN 108592666 B CN108592666 B CN 108592666B CN 201810406163 A CN201810406163 A CN 201810406163A CN 108592666 B CN108592666 B CN 108592666B
- Authority
- CN
- China
- Prior art keywords
- plate
- herringbone
- heat exchange
- small
- corrugation
- 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.)
- Active
Links
Images
Classifications
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- 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
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a herringbone plate of a plate heat exchanger, which comprises a plate main body, wherein an angle hole, a flow guide area, a flow distribution area and a heat exchange area are arranged on the plate main body, herringbone ripples are arranged on the heat exchange area along the flow direction of a heat exchange medium, one surface of the herringbone ripples facing the flow direction of the heat exchange medium is provided with a groove-shaped front small ripple, the other surface of the herringbone ripples is provided with a convex rear small ripple, and the front small ripple and the rear small ripple are identical in shape.
Description
Technical Field
The invention relates to a heat exchanger plate technology, in particular to a plate type heat exchanger plate with semi-cylindrical bulges.
Background
The world energy crisis in the last 70 s of the century has strongly promoted the development of heat transfer enhancement technology. In order to save energy, reduce consumption and improve production economic benefits, high-efficiency heat exchange plates suitable for different requirements are required to be developed. In recent years, with the progress of manufacturing technology, the development of heat transfer elements is enhanced, so that the research on novel efficient heat exchangers is greatly developed, novel heat exchange plates with different structural forms are designed and manufactured according to different process conditions and heat exchange working conditions, and the novel heat exchange plates are applied and popularized in various industries, so that great economic benefits are obtained. Therefore, development and research of heat exchange plates have been the subject of attention over the years. The plate heat exchanger has the advantages of high heat transfer coefficient, large logarithmic mean temperature difference, small terminal temperature difference, small occupied area, light weight, low price, convenient manufacture, easy cleaning, small heat loss, difficult scaling and the like, and is often used in the fields of urban heating and refrigeration, petrochemical industry, waste heat recovery, food processing and the like. The plate of the plate heat exchanger is the most important part of the plate heat exchanger, and the design of the plate directly influences the heat exchange effect of the whole plate heat exchanger.
The plate heat exchanger plates are the main components affecting the performance of the plate heat exchanger. At present, the corrugated shape of the plates of plate heat exchangers is numerous: herringbone corrugations, straight corrugations, trapezoidal straight corrugations, zigzag corrugations, and the like. The corrugated shapes of the heat exchange areas of the plates are different, but the corrugated shapes only perform one-time heat transfer enhancement on the heat exchange areas. Therefore, the invention researches secondary enhanced heat transfer on the basis of the original plate.
The plate heat exchanger is formed by combining a plurality of same plates according to a certain sequence, generally adopting herringbone plates as shown in figure 1, wherein the plates comprise positioning holes 1, corner holes 2, flow guide areas 3, flow splitting areas 4, heat exchange areas 5, front small corrugations 6, rear small corrugations 7 and large corrugations 8. When fluid flows into the plate through the angular holes 2, passes through the flow guide area 3 and the flow splitting area 4, flows into the heat exchange area 5, and heat exchange is carried out on the plate provided with the corrugations, namely the heat exchange area 5. And the fluid after heat exchange flows to the corner hole on the other side, and is converged and flows into the next group of plates. Meanwhile, the other fluid flows in the opposite direction on the other side of the plate and exchanges heat, and the fluid after heat exchange flows to the next group of plates.
The heat transfer zone 5, also called corrugated zone, is provided with herringbone corrugations. The corrugated structure of the traditional herringbone plate is shown in fig. 2, the normal cross section of the corrugation is trapezoidal, the same period is adopted between adjacent corrugations, and the heights of the peaks of the corrugations are consistent. Although the plate heat exchanger adopting the herringbone plate has a good heat exchange effect, the corrugation of the traditional herringbone plate causes relatively large flow resistance, so that the flow distribution is uneven, and the further improvement of the comprehensive performance and the further expansion of the application range of the plate heat exchanger are influenced.
Disclosure of Invention
The invention aims to provide a herringbone plate of a plate heat exchanger, which can reduce resistance in the flowing process, increase the heat exchange area, strengthen the heat exchange effect and further improve the comprehensive performance of the plate heat exchanger.
The technical scheme for realizing the purpose of the invention is as follows: a herringbone plate of a plate heat exchanger comprises a plate main body, wherein an angle hole, a flow guide area, a flow dividing area and a heat exchange area are arranged on the plate main body, herringbone ripples are arranged on the heat exchange area along the flow direction of a heat exchange medium, one surface, facing the flow direction of the heat exchange medium, of the herringbone ripples is provided with groove-shaped front small ripples, the other surface of the herringbone ripples is provided with convex rear small ripples, and the front small ripples and the rear small ripples are identical in shape.
The invention arranges the bulge and the groove at the two sides of the wave crest of the big ripple, the groove is arranged at one side of the big ripple facing to the incoming flow direction, and the bulge is arranged at one side of the big ripple back to the incoming flow direction. The design of the groove enables the fluid to increase disturbance in the flowing process, turbulence is generated when the fluid flows through the groove, and even a small amount of backflow exists, so that the fluid heat exchange is more thorough. The small-scale turbulence under the condition that the main flow is not changed strengthens the heat exchange capability of the fluid, and the integral heat exchange capability of the plate is secondarily strengthened. The positions of the grooves and the projections cannot be reversed. If the bulge is arranged on one side of the large ripple facing the incoming flow direction, although a certain streaming effect can be achieved, the resistance is obviously increased more; the big ripple one side that is the back of to the incoming flow direction sets up the recess, and the secondary strengthening effect can weaken a lot. The arrangement of the grooves and the bulges strengthens the heat transfer effect, so that the comprehensive performance of the plate heat exchanger is further improved.
The invention is further described below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a chevron plate of a prior art plate heat exchanger.
FIG. 2 is a corrugated schematic of a conventional chevron sheet.
Fig. 3 is a structural schematic diagram of the novel herringbone sheet composite corrugation of the invention.
Detailed Description
Referring to fig. 3, the plate sheet with the semi-cylindrical protrusions for the plate heat exchanger comprises a sheet main body, wherein the sheet main body is provided with a positioning hole 1, an angle hole 2, a flow guide area 3, a flow distribution area 4 and a heat exchange area 5. The positioning holes 1 are positioned at two ends of the plate body to play a positioning role. Four corner holes 2 are respectively arranged at four corners of the plate body, and the heat exchange medium flows through the corner holes 2. The flow guiding zone 3 guides the heat exchange medium to the dividing zone 4. The dividing zone 4 divides the heat transfer medium to different zones of the heat transfer zone 5. The heat exchange area 5 is provided with corrugations 11 along the flow direction of the heat exchange medium, the corrugations are symmetrically arranged, namely, the identical plates are completely pressed together after being rotated by 180 degrees.
One surface of the herringbone corrugation 11 facing the flowing direction of the heat exchange medium is provided with a groove-shaped front small corrugation 6, the other surface of the herringbone corrugation 11 is provided with a convex rear small corrugation 7, and the shape of the front small corrugation 6 is the same as that of the rear small corrugation 7. The inclination of the herringbone corrugations 11 is the same as the inclination of the small corrugations. The wave heights of all the small ripples are the same, the wave heights of the small ripples are one sixth to two thirds of the wave heights of the large ripples, and the inclination angles of the large ripples and the small ripples are consistent and are both 40-60 degrees. The wave height of the small ripple is mainly set according to the wave height of the large ripple, the inclination angle of the ripple is not too large or too small, the too large increases the flow resistance, and the too small does not have obvious strengthening effect.
The corrugation of the plate is of a large and small corrugation composite structure, the front and the rear small corrugations which are the same are added on the large corrugation, the flowing direction of a heat exchange medium is blocked due to the existence of the large and small corrugations, the fluid has a strong scouring effect on the plate, the flowing direction of the medium is changed and moves in an accelerating mode, secondary flow is generated in the flowing direction, the medium generates strong movement at the large and small corrugations, secondary vortex is generated, and heat transfer is enhanced due to the generation of the secondary vortex. Meanwhile, the composite corrugation formed by the large corrugation and the small corrugation can reduce strong scouring on the front surface of the plate when fluid flows, so that the generation of large vortex and the sharp increase of local flow velocity are avoided, and the flow resistance is effectively reduced. The existence of the big and small ripples also increases the heat exchange area and strengthens the heat transfer, so that higher heat transfer effect can be achieved under the same volume space.
Claims (4)
1. A herringbone plate of a plate heat exchanger comprises a plate main body, wherein the plate main body is provided with an angle hole (2), a flow guide area (3), a flow distribution area (4) and a heat exchange area (5),
herringbone ripples (11) are arranged on the heat exchange area (5) along the flow direction of the heat exchange medium,
the side of the herringbone corrugation (11) facing the flow direction of the heat exchange medium is provided with a groove-shaped front small corrugation (6),
the other surface of the herringbone corrugation (11) is provided with a convex rear small corrugation (7),
the front small corrugation (6) and the rear small corrugation (7) are the same in shape.
2. Plate according to claim 1, characterized in that the inclination of the herringbone corrugations (11) corresponds to the inclination of the small corrugations.
3. A plate sheet according to claim 1, characterized in that the inclination of the herringbone corrugations (11) and the small corrugations is 40 ° to 60 °.
4. The plate sheet according to claim 1, wherein the wave heights of the small waves are the same, and the wave heights of the small waves are 1/6-2/3 of the large wave heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406163.8A CN108592666B (en) | 2018-04-30 | 2018-04-30 | Herringbone plate of plate heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810406163.8A CN108592666B (en) | 2018-04-30 | 2018-04-30 | Herringbone plate of plate heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108592666A CN108592666A (en) | 2018-09-28 |
| CN108592666B true CN108592666B (en) | 2020-04-07 |
Family
ID=63619369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810406163.8A Active CN108592666B (en) | 2018-04-30 | 2018-04-30 | Herringbone plate of plate heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108592666B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006277A (en) * | 2019-05-06 | 2019-07-12 | 南通文鼎换热设备科技有限公司 | A kind of waveform fluid channel heat exchanger fin of plate heat exchanger |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6991025B2 (en) * | 2004-03-17 | 2006-01-31 | Dana Canada Corporation | Cross-over rib pair for heat exchanger |
| CN105387741B (en) * | 2015-12-15 | 2018-03-06 | 浙江鸿远制冷设备有限公司 | A kind of heat exchanger plate group of Novel asymmetric channel design |
| EP3225947A1 (en) * | 2016-03-30 | 2017-10-04 | Alfa Laval Corporate AB | Heat transfer plate and plate heat exchanger comprising a plurality of such heat transfer plates |
| CN205784792U (en) * | 2016-05-30 | 2016-12-07 | 江阴市亚龙换热设备有限公司 | Heat-exchanger rig |
-
2018
- 2018-04-30 CN CN201810406163.8A patent/CN108592666B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108592666A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2828711Y (en) | Corrugation heat exchanging blade for plate heat exchanger | |
| CN101158561A (en) | Plate heat exchanger composite corrugated plate bind | |
| CN111059929A (en) | Novel micro-channel heat exchanger with fin structure | |
| CN112033192A (en) | High-pressure-resistant high-heat-exchange-rate brazed heat exchanger | |
| CN202734627U (en) | Plate-type heat exchanger | |
| CN102767982B (en) | Louver fin and heat exchanger adopting louver fins | |
| CN108592666B (en) | Herringbone plate of plate heat exchanger | |
| CN108827057A (en) | A kind of plate heat exchanger composite corrugated plate card piece of novel fishbone | |
| CN110793016A (en) | Axially-through elliptical finned tube | |
| CN108801035A (en) | Novel fishbone adds the plate-type heat exchanger slab of semi-cylindrical protrusion | |
| CN211451981U (en) | Plate heat exchanger | |
| CN203454887U (en) | Heat exchanging plate and plate type heat exchanger | |
| CN110530179B (en) | Symmetrical bubbling type plate heat transfer element | |
| CN108645267A (en) | Novel fishbone adds the plate-type heat exchanger slab of fusiformis protrusion | |
| CN205482512U (en) | Sinusoidal ripple heat transfer board | |
| CN209945088U (en) | Raised variable cross-section fluid channel heat exchange fin of plate heat exchanger | |
| CN210321332U (en) | Double-torsional-flow heat exchanger | |
| CN109612300B (en) | Micro-through plate | |
| CN114199068A (en) | Continuous H-shaped finned tube with airflow partitions | |
| CN202793137U (en) | Plate heat exchanger sheet bar with double-corrugation with different depths | |
| CN209910471U (en) | Herringbone plate type heat exchanger plate with built-in double turbulence columns | |
| CN2809567Y (en) | Soft and hard corrugated board structure | |
| CN217636945U (en) | Heat exchange plate sheet of rotary heat exchanger | |
| CN212300043U (en) | Brazed heat exchanger with high heat exchange rate | |
| CN112762741A (en) | Plate heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |