CN211012599U - Multi-stage flow-dividing brazing heat exchanger plate set - Google Patents
Multi-stage flow-dividing brazing heat exchanger plate set Download PDFInfo
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- CN211012599U CN211012599U CN201922183303.2U CN201922183303U CN211012599U CN 211012599 U CN211012599 U CN 211012599U CN 201922183303 U CN201922183303 U CN 201922183303U CN 211012599 U CN211012599 U CN 211012599U
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- 238000005219 brazing Methods 0.000 title claims abstract description 10
- 238000009826 distribution Methods 0.000 claims abstract description 8
- 238000012546 transfer Methods 0.000 abstract description 28
- 210000003205 muscle Anatomy 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of the heat exchanger, concretely relates to multistage reposition of redundant personnel's heat exchanger plate group of brazing, including at least two pairs of unit plate groups, it is every right unit plate group is including the first slab and the second slab of range upon range of setting, first slab and second slab all include main panel and baffle on every side, the main panel includes diffluence zone, main heat transfer district and converges the district, between diffluence zone and the main heat transfer district and converge and all be equipped with the reposition of redundant personnel muscle for it is even to flow into the medium in main heat transfer district and flow into the medium distribution that converges the district from main heat transfer district from the diffluence zone. The utility model discloses set up diffluence area, main heat transfer district and the district that converges on the main panel of heat transfer slab to set up the reposition of redundant personnel muscle between diffluence area and main heat transfer district and converge between the district, do benefit to the evenly distributed of medium, be favorable to improving the heat transfer performance and the heat transfer stability of heat exchanger.
Description
Technical Field
The utility model belongs to the technical field of the heat exchanger, concretely relates to heat exchanger plate group of brazing of multistage reposition of redundant personnel.
Background
The brazed plate heat exchanger is one efficient heat exchanger produced through brazing and includes one series of corrugated metal sheets. The various plates form channels between them through which heat is exchanged. Compared with the conventional shell-and-tube heat exchanger, the heat transfer coefficient of the heat exchanger is much higher under the condition of the same flow resistance and pump power consumption, and the heat exchanger tends to replace the shell-and-tube heat exchanger in an applicable range.
In the design process of the brazed plate heat exchanger in the market at present, the circulation performance of media near the middle part of a plate sheet is not considered due to the circulation performance of the media at two ends of the heat exchanger, and the condition that the media in the heat exchanger circulate unevenly is aggravated along with the increase of the distance, so that the performance of the heat exchanger is reduced or is not stable enough.
SUMMERY OF THE UTILITY MODEL
Poor in order to solve the medium circulation homogeneity of current heat exchanger to lead to heat exchanger performance to descend or the problem of stablizing inadequately, the utility model discloses a brazing heat exchanger plate group of multistage reposition of redundant personnel through set up the subregion, main heat transfer district and the district that converges on the main board at the heat transfer plate, and set up the reposition of redundant personnel muscle between subregion and main heat transfer district and between main heat transfer district and the district that converges, do benefit to the evenly distributed of medium, be favorable to improving the heat transfer performance and the heat transfer stability of heat exchanger.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the multi-stage flow dividing brazing heat exchanger plate set comprises at least two pairs of unit plate sets, each pair of unit plate sets comprises a first plate and a second plate which are arranged in a stacked mode, each first plate and each second plate comprises a main panel and surrounding baffle plates, each main panel comprises a flow dividing region, a main heat exchange region and a flow converging region, and flow dividing ribs are arranged between the flow dividing regions and the main heat exchange regions and between the main heat exchange regions and the flow converging regions and used for uniformly distributing media flowing into the main heat exchange regions from the flow dividing regions and media flowing into the flow converging regions from the main heat exchange regions.
Preferably, the flow splitting region is provided with a plurality of first convex ridges, valley I is formed between adjacent first convex ridges, the included angle between the first convex ridges and the flow splitting ribs is α, the main heat exchange region is provided with a plurality of second convex ridges, valley II is formed between adjacent second convex ridges, the included angle between the second convex ridges and the flow splitting ribs is β, the flow converging region is provided with a plurality of third convex ridges, valley III is formed between adjacent third convex ridges, the included angle between the third convex ridges and the flow splitting ribs is gamma, the α is not equal to β, and the β is not equal to gamma.
Preferably, the brazed heat exchanger plate package described above is used in an evaporator, said α being equal to γ and being between 30 and 45 ° and β being between 20 and 30 °.
Preferably, the brazed heat exchanger plate package described above is used in a condenser, said α being equal to γ and being 20-30 ° and β being 30-45 °.
Preferably, the first ridge, the second ridge and the third ridge are inclined towards the same direction; the second plate is rotated 180 ° with respect to the first plate; the heights of the first raised ridge, the second raised ridge and the third raised ridge are equal and equal to twice the height of the flow dividing rib.
Preferably, the second valley of the first plate is provided with a plurality of convex grooves protruding towards the second direction of the convex ridge, and the second convex ridge of the second plate is provided with a plurality of concave grooves recessed towards the second direction of the concave valley.
Preferably, the convex grooves and the concave grooves have the same size and are respectively and uniformly distributed on the corresponding second valleys and the corresponding second ridges.
Preferably, the second raised ridge of the first plate is provided with a raised ridge recess recessed towards the second valley direction along the top of the second raised ridge, and the second valley of the second plate is provided with a valley projection protruding towards the second raised ridge direction along the bottom of the second raised ridge, so that the turbulence of the medium in the flow channel is increased.
Preferably, the heights of the ridge depressions and the valley projections are equal to each other and equal to half of the height of the second ridge.
Preferably, the top of the second ridge of the first plate is divided into a first second ridge and a second ridge by the ridge recess, the bottom of the second valley of the second plate is divided into a first second valley and a second valley by the valley projection, the top width of the first second ridge, the top width of the second ridge, the bottom width of the second valley of the first plate, the bottom width of the first valley, the bottom width of the second valley and the top width of the ridge of the second plate are all equal, the bottom width of the ridge recess and the top width of the valley projection are equal, and the top width of the first ridge is greater than the top width of the valley projection.
The utility model discloses following beneficial effect has:
(1) the utility model discloses set up the diffluence area on the main panel of heat transfer slab, main heat transfer district and converge the district, and set up the reposition of redundant personnel muscle between diffluence area and main heat transfer district and between main heat transfer district and the district that converges, the setting up of reposition of redundant personnel muscle can make the medium that flows to main heat transfer district from the diffluence area carry out the uniform distribution at reposition of redundant personnel muscle department, do benefit to the medium and flow into main heat transfer district evenly, after the medium accomplishes the heat exchange in main heat transfer district, again through the diffluence muscle between main heat transfer district and the district that converges and carry out the secondary distribution, evenly converge together, flow to the exit position through the district that converges, in the whole process, the medium has undergone twice uniform distribution, can make the medium circulate more evenly in the whole runner, be favorable to improving heat transfer and forming;
(2) the heat exchange plate sheet of the utility model can adjust the flow velocity of the medium in three different areas by adjusting the size of the included angle α between the first convex ridge and the shunting rib, the included angle β between the second convex ridge and the shunting rib and the included angle gamma between the third convex ridge and the shunting rib, and the size of β is adjusted to determine that the heat exchange plate sheet is used for an evaporator or a condenser;
(3) the heat exchange plate of the utility model is provided with the convex groove on the second valley and the groove on the second convex ridge, and the arrangement of the convex groove and the groove is beneficial to reducing the pressure drop in the flow passage and is beneficial to the faster and more uniform circulation of the medium, thereby improving the heat exchange performance;
(4) the utility model discloses it is sunken to be equipped with sunken convex ridge at two tops of convex ridge of first slab to be equipped with convex valley arch in two bottoms of valley of second slab, be convenient for increase the torrent of medium in the runner, not only be favorable to improving heat exchange efficiency, can also effectively avoid the accumulation of dirt, play good antifouling dirt effect.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a heat exchange plate group of the present invention;
fig. 2 is a schematic structural view of a first sheet of the present invention;
FIG. 3 is an enlarged view of a portion a of FIG. 2;
FIG. 4 is an enlarged view of portion b of FIG. 2;
fig. 5 is a schematic structural view of a second sheet of the present invention;
FIG. 6 is an enlarged view of portion c of FIG. 5;
FIG. 7 is an enlarged view of portion d of FIG. 5;
FIG. 8 is a top view of a pair of cell plate sets according to the present invention;
FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;
FIG. 10 is a cross-sectional view taken along line B-B of FIG. 8;
in the figure: 1. a first sheet; 2. a second sheet; 3. a baffle plate; 41. a shunting region; 411. a first convex ridge; 412. a valley I; 42. a main heat exchange zone; 421. a second convex ridge; 4211. a second ridge; 4212. a second ridge two; 422. a second valley; 4221. a second valley; 4222. a second valley two; 423. a convex groove; 424. a groove; 425. the convex ridge is concave; 426. the valley is convex; 43. a converging region; 431. a third convex ridge; 432. valley three; 44. and (4) distributing ribs.
Detailed Description
The present invention will now be described in further detail with reference to examples.
A multi-stage shunting brazing heat exchanger plate group comprises at least two pairs of unit plate groups, each pair of unit plate groups comprises a first plate 1 and a second plate 2 which are arranged in a stacking mode, each first plate 1 and each second plate 2 comprise a main panel and a surrounding baffle 3, and the multi-stage shunting brazing heat exchanger plate group is characterized in that: the main panel comprises a diversion area 41, a main heat exchange area 42 and a confluence area 43, wherein diversion ribs 44 are arranged between the diversion area 41 and the main heat exchange area 42 and between the main heat exchange area 42 and the confluence area 43, and are used for uniformly distributing media flowing into the main heat exchange area 42 from the diversion area 41 and media flowing into the confluence area 43 from the main heat exchange area 42. The arrangement of the flow dividing ribs 44 can enable the medium flowing from the flow dividing region 41 to the main heat exchange region 42 to be uniformly distributed at the flow dividing ribs 44, so that the medium can uniformly flow into the main heat exchange region 42, and after the medium completes heat exchange in the main heat exchange region 42, the medium is secondarily distributed through the flow dividing ribs 44 between the main heat exchange region 42 and the flow converging region 43, uniformly converged together, and flows to an outlet position through the flow converging region 43. In the whole process, the medium is uniformly distributed on two sides, so that the medium can more uniformly circulate in the whole flow channel, the heat exchange is favorably improved, and the long-term heat exchange stability is ensured.
In addition, because the main panel of the heat exchange plate is provided with a plurality of corrugated convex ridges and valleys, the heat exchange plate is easy to deform, and the arrangement of the flow dividing ribs 44 can provide effective support for the whole heat exchange plate, thereby improving the panel strength and being beneficial to improving the problem of processing deformation.
In a specific embodiment, as shown in fig. 2-8, the diversion area 41 is provided with a plurality of first ridges 411, a valley 412 is formed between adjacent first ridges 411, an included angle between the first ridges 411 and the diversion ribs 44 is α, the main heat transfer area 42 is provided with a plurality of second ridges 421, a valley 422 is formed between adjacent second ridges 421, an included angle between the second ridge 421 and the diversion ribs 44 is β, the confluence area 43 is provided with a plurality of third ridges 431, a valley 432 is formed between adjacent third ridges 431, an included angle between the third ridge 431 and the diversion ribs 44 is γ, α is not equal to β, β is not equal to γ, α is not equal to β, so that the medium does not directly flow from the diversion area 41 to the main heat transfer area 42, but first passes through the distribution of the diversion ribs 44 and then enters the main heat transfer area 42, β is not equal to γ, and the medium can also pass through the distribution and then enters the confluence area 43.
In one particular embodiment, as shown in fig. 8, where a brazed heat exchanger plate stack is used in an evaporator, α is equal to γ, 30-45 ° and β is 20-30 °. since evaporation is the process of converting liquid to vapor, setting the α (or γ) angle at a larger angle is more favorable for the liquid (or vapor) to rapidly flow into (or rapidly evaporate out of) the main heat exchange zone 42, thereby enhancing evaporation performance.
In one particular embodiment, as shown in fig. 8, where the brazed heat exchanger plate package is used in a condenser, α is equal to γ, which is 20-30 ° and β is 30-45 °. since condensation is the process of converting vapor to liquid, setting the α (or γ) angle at a larger angle is more favorable for the vapor (or liquid) to flow rapidly into (or out of) the primary heat exchange zone 42, thereby improving condensation performance.
In a specific embodiment, as shown in fig. 1, 9 and 10, the first ridge 411, the second ridge 421 and the third ridge 431 are all inclined toward the same direction; the second plate 2 is rotated 180 ° with respect to the first plate 1; the heights of the first ridge 411, the second ridge 421 and the third ridge 431 are all equal and equal to twice the height of the flow dividing rib 44.
In a specific embodiment, as shown in fig. 3-4 and fig. 6-7, the second valley 422 of the first plate 1 is provided with a plurality of convex grooves 423 protruding toward the second ridge 421, and the second ridge 421 of the second plate 2 is provided with a plurality of concave grooves 424 recessed toward the second valley 422. The convex groove 423 arranged on the second valley 422 and the concave groove 424 arranged on the second convex ridge 421 are beneficial to reducing pressure drop, and are beneficial to faster and more uniform circulation of the medium, and the heat exchange performance is improved.
In one embodiment, as shown in fig. 2 and 5, the grooves 423 and the grooves 424 are equal in size and are uniformly distributed on the corresponding valleys 422 and ridges 421.
In a specific embodiment, as shown in fig. 3-4 and 6-7, the second ridges 421 of the first plate 1 have along the top thereof ridge depressions 425 that are depressed in the direction of the second valleys 422, and the second valleys 422 of the second plate 2 have along the bottom thereof valley protrusions 426 that are raised in the direction of the second ridges 421, so as to increase turbulence of the medium in the flow channels. As shown by the dotted line with an arrow in fig. 9, the medium can form turbulent flow in the flow channel, which is not only beneficial to improving the heat exchange efficiency, but also can effectively avoid the accumulation of dirt, and has good dirt-proof effect.
In one particular embodiment, as shown in fig. 9-10, the ridge recesses 425 and the valley protrusions 426 have equal heights and are equal to one-half the height of the ridge two 421.
In a particular embodiment, as shown in fig. 3-4, 6-7, and 9-10, the top of the second ridge 421 of the first plate 1 is divided into a first second ridge 4211 and a second ridge 4212 by the ridge recesses 425, the bottom of the second valley 422 of the second plate 2 is divided into a first second valley 4221 and a second valley 4222 by the valley protrusions 426, the top width of the first second ridge 4211, the top width of the second ridge 4212, the bottom width of the second valley 422 of the first plate 1, the bottom width of the first second valley 4221, the bottom width of the second valley 4222, and the top width of the second ridge 421 of the second plate 2 are all equal, the bottom width of the ridge recesses 425 and the top width of the valley protrusions 426 are equal, and the top width of the first second ridge 4211 is greater than the top width of the valley protrusions 426.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A multi-stage shunting brazed heat exchanger plate group comprises at least two pairs of unit plate groups, each pair of unit plate groups comprises a first plate (1) and a second plate (2) which are arranged in a stacked mode, the first plate (1) and the second plate (2) respectively comprise a main panel and surrounding baffle plates (3), and the multi-stage shunting brazed heat exchanger plate group is characterized in that: the main panel comprises a flow distribution area (41), a main heat exchange area (42) and a confluence area (43), wherein flow distribution ribs (44) are arranged between the flow distribution area (41) and the main heat exchange area (42) and between the main heat exchange area (42) and the confluence area (43) and are used for uniformly distributing media flowing into the main heat exchange area (42) from the flow distribution area (41) and media flowing into the confluence area (43) from the main heat exchange area (42).
2. The multi-stage flow dividing brazing heat exchanger plate group according to claim 1, wherein the flow dividing region (41) is provided with a plurality of first ridges (411), first valleys (412) are formed between adjacent first ridges (411), an included angle between each first ridge (411) and each flow dividing rib (44) is α, the main heat exchange region (42) is provided with a plurality of second ridges (421), second valleys (422) are formed between adjacent second ridges (421), an included angle between each second ridge (421) and each flow dividing rib (44) is β, the flow converging region (43) is provided with a plurality of third ridges (431), third valleys (432) are formed between adjacent third ridges (431), an included angle between each third ridge (431) and each flow dividing rib (44) is gamma, α is not equal to β, and β is not equal to gamma.
3. The multi-split flow brazed heat exchanger plate pack according to claim 2, wherein the brazed heat exchanger plate pack is for an evaporator, wherein α is equal to γ, and is 30-45 ° and β is 20-30 °.
4. The multi-split brazed heat exchanger plate package of claim 2, wherein the brazed heat exchanger plate package is for a condenser, the α is equal to γ, is 20-30 °, and the β is 30-45 °.
5. The multi-stage flow-splitting brazed heat exchanger plate pack of claim 2, wherein: the first ridge (411), the second ridge (421) and the third ridge (431) are inclined towards the same direction; the second plate (2) is rotated 180 ° with respect to the first plate (1); the heights of the first ridge (411), the second ridge (421) and the third ridge (431) are all equal and equal to twice the height of the flow dividing rib (44).
6. The multi-stage flow-splitting brazed heat exchanger plate pack of claim 2, wherein: the second concave groove (422) of the first plate (1) is provided with a plurality of convex grooves (423) protruding towards the second convex ridge (421), and the second convex ridge (421) of the second plate (2) is provided with a plurality of concave grooves (424) recessed towards the second concave groove (422).
7. The multi-stage flow-splitting brazed heat exchanger plate pack of claim 6, wherein: the convex grooves (423) and the concave grooves (424) are equal in size and are respectively and uniformly distributed on the corresponding second valleys (422) and the corresponding second ridges (421).
8. The multi-stage flow-splitting brazed heat exchanger plate pack of claim 2, wherein: the second raised ridge (421) of the first plate (1) is provided with a raised ridge recess (425) recessed towards the second recessed valley (422) along the top of the second raised ridge, and the second recessed valley (422) of the second plate (2) is provided with a recessed valley protrusion (426) protruding towards the second raised ridge (421) along the bottom of the second raised ridge, so that the turbulence of the medium in the flow channel is increased.
9. The multi-stage flow splitting brazed heat exchanger plate pack of claim 8, wherein: the ridge depressions (425) and the valley protrusions (426) have the same height and are equal to half the height of the second ridge (421).
10. The multi-stage flow splitting brazed heat exchanger plate pack of claim 8, wherein: the top of the second ridge (421) of the first plate (1) is divided into a first second ridge (4211) and a second ridge (4212) by the ridge recess (425), the bottom of the second valley (422) of the second plate (2) is divided into a first valley two (4221) and a second valley two (4222) by a valley protrusion (426), the top width of the first ridge II (4211), the top width of the second ridge II (4212), the bottom width of the valley II (422) of the first plate (1), the bottom width of the first valley II (4221), the bottom width of the second valley II (4222) and the top width of the ridge II (421) of the second plate (2) are all equal, the width of the bottom of the ridge recess (425) is equal to the width of the top of the valley protrusion (426), the top width of the second ridge (4211) is larger than that of the valley protrusion (426).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922183303.2U CN211012599U (en) | 2019-12-06 | 2019-12-06 | Multi-stage flow-dividing brazing heat exchanger plate set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922183303.2U CN211012599U (en) | 2019-12-06 | 2019-12-06 | Multi-stage flow-dividing brazing heat exchanger plate set |
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| CN211012599U true CN211012599U (en) | 2020-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749215A (en) * | 2019-12-06 | 2020-02-04 | 江苏唯益换热器有限公司 | Multi-stage flow-dividing brazing heat exchanger plate set |
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- 2019-12-06 CN CN201922183303.2U patent/CN211012599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749215A (en) * | 2019-12-06 | 2020-02-04 | 江苏唯益换热器有限公司 | Multi-stage flow-dividing brazing heat exchanger plate set |
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