CN108195212A - A kind of brazing plate type heat exchanger - Google Patents
A kind of brazing plate type heat exchanger Download PDFInfo
- Publication number
- CN108195212A CN108195212A CN201810155283.5A CN201810155283A CN108195212A CN 108195212 A CN108195212 A CN 108195212A CN 201810155283 A CN201810155283 A CN 201810155283A CN 108195212 A CN108195212 A CN 108195212A
- Authority
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- China
- Prior art keywords
- heat exchanger
- fluid distributor
- fluid
- exchanger fin
- hemispherical
- 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.)
- Granted
Links
- 238000005219 brazing Methods 0.000 title claims description 23
- 239000012530 fluid Substances 0.000 claims abstract description 107
- 238000009826 distribution Methods 0.000 claims abstract description 42
- 238000004080 punching Methods 0.000 claims abstract description 17
- 238000005476 soldering Methods 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 24
- 210000002105 tongue Anatomy 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 14
- 238000005493 welding type Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F28D9/0031—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 the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—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 the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—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 the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- 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
Landscapes
- 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 invention discloses be respectively lower heat exchanger fin, fluid distributor and upper heat exchanger fin from bottom to up;Fluid distributor is respectively fluid distributor lower sheeting, fluid distributor lower position block, fluid distribution pipe, tabletting on fluid distributor upper limit position block and fluid distributor from bottom to up;The upper and lower tabletting of fluid distributor is connect respectively with upper and lower heat exchanger fin using integral type punching press technical battery;Fluid distributor upper and lower limit block and fluid distribution pipe are connect respectively with the upper and lower tabletting of fluid distributor using soldering tech.The present invention has many advantages, such as that small, heat exchange efficiency is high, flow control is accurate, is not easy to plug.
Description
Technical field
The present invention relates to the heat exchanger fins and fluid distributor in plate heat exchanger more particularly to brazing plate type heat exchanger.
Background technology
Plate heat exchanger is that liquid-liquid, liquid-vapour carry out the ideal equipment of heat exchange, with heat exchanger effectiveness it is high,
The series of advantages such as heat loss is small, advantages of compact and light structure, floor space are small, service life length, thus be widely used in it is metallurgical,
The departments such as mine, oil, chemical industry, electric power, medicine, food, chemical fibre, papermaking, light textile, ship, heat supply.Also, it can be used for adding
The various situations such as heat, cooling, evaporation, condensation, sterilizing, waste heat recovery.Plate heat exchanger mainly has detachable and welding
Two major class of formula, in comparison, welding type heat exchanger have many advantages, such as to hold that temperature, bearing capacity are strong, and resistance to corrosion is good, thus weld
Formula heat exchanger use scope is more extensive.
Welding type heat exchanger can be divided into half welding type heat exchanger, full welding type heat exchanger, plate visitor's formula heat exchanger, brazing sheet again
Formula heat exchanger.Since soldering has, heating temperature is relatively low, connector is smooth, tissue and mechanical performance change small, workpiece size
The advantages that accurate, brazing plate type heat exchanger can be used as condenser and evaporator in refrigeration industry, and alcohol can be used as in chemical industry
The operating temperature range of cooler ... the pricker welded type heat exchanger of fermentation etc. is -160 DEG C~+225 DEG C, and working pressure range is
0.01MPa~3.2MPa.
Although brazing plate type heat exchanger have the advantages that it is above-mentioned, with the products such as household electrical appliances miniaturization, intelligent requirements it is more next
Higher, brazing plate type heat exchanger is as a component in these products, with volume is big, flow control is inaccurate, distribution
The problems such as block easily blocks.How accurately ensure heat exchange efficiency while reduce brazing plate type heat exchanger volume, be in industry
Problem.
At present, brazing plate type heat exchanger heat exchanger fin surface is frequently with herringbone ripple, vertical bar shaped ripple and knurl shape ripple,
Respectively there are advantage and disadvantage.But from the point of view of the surface area shared by unit volume, these three ripples are not so good as spherical ripple, therefore brazing-sheet type
Heat exchanger heat exchanger fin can effectively reduce heat exchanger volume using spherical ripple.However, though heat exchanger fin can be effective using spherical ripple
Increase unit volume heat exchange area, but there is also fluid flow resistance it is big the shortcomings of, requirement rationally design fluid distribute
Device is to improve disadvantages mentioned above.Thus, there is an urgent need for improve brazing plate type heat exchanger heat exchanger fin and fluid distributor simultaneously.
Invention content
The technical problem to be solved in the present invention is, for common brazing plate type heat exchanger volume is big, fluid distributor stream
The shortcomings of amount control is inaccurate proposes a kind of novel brazing plate type heat exchanger.
The technical solution that a kind of pricker welded type heat exchanger proposed by the present invention is taken is:A kind of brazing plate type heat exchanger, from
Under it is supreme be respectively lower heat exchanger fin, fluid distributor and upper heat exchanger fin;Fluid distributor is respectively fluid distributor from bottom to up
Tabletting on lower sheeting, fluid distributor lower position block, fluid distribution pipe, fluid distributor upper limit position block and fluid distributor;Stream
The upper and lower tabletting of body distributor is connect respectively with upper and lower heat exchanger fin using integral type punching press technical battery;Fluid distributor upper and lower limit
Block and fluid distribution pipe are connect respectively with the upper and lower tabletting of fluid distributor using soldering tech.
Preferably, the lower heat exchanger fin surface has hemispherical bumps and transition convex block;The lower heat exchanger fin surface according to
The distribution density of hemispherical bumps is divided into close quarters and sparse region, the centre of sphere spacing dimension of hemispherical bumps in close quarters
For 6.5~7.5mm, the centre of sphere spacing dimension of hemispherical bumps is 5.5~6.1mm in sparse region, hemispherical bumps radius model
It encloses for 1.5~2.5mm;The transition convex block is distributed in the gap that close quarters hemispherical bumps are surrounded, and shape is hands over
Cross burr is pitched, according to whether extending to hemispherical bumps can use a variety of different distributions schemes;The cross burr is wide
Degree size is 0.4~0.6mm, and the cross burr punching press angle is 110 °~120 °, the cross burr punching press
Highly it is 0.4~0.6mm.
Preferably, the upper heat exchanger fin surface has hemispherical dimples and transition pit;The upper heat exchanger fin surface according to
The distribution density of hemispherical dimples is divided into close quarters and sparse region, the centre of sphere spacing dimension of hemispherical dimples in close quarters
For 6.5~7.5mm, the centre of sphere spacing dimension of hemispherical dimples is 5.5~6.1mm in sparse region, and hemispherical dimples radius is
1.5~2.5mm;In the gap that the transition pit distribution is surrounded in close quarters hemispherical dimples, shape is intersects ten
Word dimpled grain, according to whether extending to hemispherical dimples can use a variety of different distributions schemes;The cross dimpled grain broad-ruler
Very little is 0.4~0.6mm, and the cross dimpled grain punching press angular range is 110 °~120 °, the cross dimpled grain punching press
Depth is 0.4~0.6mm.
Preferably, lower heat exchanger fin and upper heat exchanger fin surface texture are symmetrical, and corresponding size value is identical.
Preferably, the fluid distributor lower sheeting surface is uniformly distributed multiple semicolumn grooves, the semicolumn groove
Equal subangle is 30 °~60 °, and the semicolumn groove diameter is 3~5mm;Above-mentioned fluid distributor lower sheeting surface has ring
Shape protrusion, the annular protrusion punching press angle are 80 °~100 °, and the annular protrusion press height size is 1.5~2.5mm,
2.0~2.4mm of the annular protrusion width dimensions.
Preferably, wafer surface is uniformly distributed multiple semicolumn tongues on fluid distributor, and the semicolumn tongue is divided equally
Angle is 30 °~60 °, a diameter of 3~5mm of semicolumn tongue;Wafer surface has annular recessed on above-mentioned fluid distributor
It falls into, the ring-shaped depression punching press angle is 80 °~100 °, and the ring-shaped depression press height size is 1.5~2.5mm, described
2.0~2.4mm of ring-shaped depression width dimensions.
Preferably, tabletting is symmetrical structure on fluid distributor lower sheeting and fluid distributor, corresponding size value
It is identical.
Preferably, the fluid distribution pipe has cone-shaped inner hole;The fluid distribution pipe liquid outlet a diameter of 0.7~
1.3mm, the fluid distribution pipe overall diameter are 2.9~4.9mm, and the fluid distribution pipe cone-shaped inner hole taper is 1:12~1:
10, the fluid distribution length of tube is 6~7mm.
Compared with prior art, the advantage of the invention is that:
1. hemispherical dimples and hemispherical bumps, the closed cavity of composition is respectively adopted in upper and lower heat exchanger fin in the present invention
Region heat exchange area is big.
2. in the present invention upper and lower heat exchanger fin hemispherical dimples and hemispherical bumps gap be respectively adopted cross dimpled grain and
Cross burr, further increases heat exchange area, improves heat exchanger fin rigidity.
3. the hemispherical dimples that upper and lower heat exchanger fin of the invention uses, cross dimpled grain, hemispherical bumps cross are convex
Line can make fluid generate turbulent flow under relatively low Reynolds number, and heat exchange efficiency is high.
4. the upper and lower tabletting of fluid distributor uses integral type stamping technology, manufacturing process with upper and lower heat exchanger fin in the present invention
Simply, cost is relatively low;
5. numerical control machining or essence casting, accurate size, thus fluid distributor flow control can be used in distribution pipe in the present invention
System is accurate.
6. fluid distribution pipe uses cone-shaped inner hole structure in the present invention, impurities in liquid is not easy to deposit, and fluid is in fluid
Distributor liquid outlet speed increases, and fluid is more also easy to produce turbulent flow in heat exchanger fin cavity.
7. the present invention uses more fluid distribution pipes, heat exchanger fin cavity flow resistance is effectively overcome, distributor is less susceptible to block.
Description of the drawings
Fig. 1 is the structure diagram of the present invention, wherein 1 being lower cover, 2 being fluid distribution pipe, 3 being upper cover plate.
Fig. 2 is the assembling schematic diagram of the present invention, and wherein A is feed liquor corner apertures, B is closing corner apertures, C is closing corner apertures, D is
Liquid corner apertures.
Fig. 3 is lower cover schematic diagram in the present invention, wherein 1.1 be fluid distributor lower cover, 1.2 be lower heat exchanger fin,
1.2.1 it is lower heat exchanger fin hemispherical bumps, 1.2.2 is lower heat exchanger fin transition convex block.
Fig. 4 is lower heat exchanger fin hemispherical bumps cross-section diagram in the present invention.
Fig. 5 is lower heat exchanger fin transition convex block arrangement I in the present invention (transition convex block is not extend to hemispherical bumps).
Fig. 6 is lower heat exchanger fin transition convex block arrangement II in the present invention (transition convex block extends to hemispherical bumps).
Fig. 7 is lower heat exchanger fin transition convex block cross-section diagram in the present invention.
Fig. 8 is fluid distributor lower cover schematic diagram in the present invention, and wherein 1.1.1 is fluid distributor lower sheeting, 1.1.2
For fluid distributor lower position block.
Fig. 9 is fluid distributor lower sheeting front view in the present invention.
Figure 10 is fluid distributor lower cover cross-section diagram in the present invention.
Figure 11 is upper cover plate schematic diagram in the present invention, wherein 3.1 be fluid distributor upper cover plate, 3.2 be upper heat exchanger fin,
3.2.1 it is upper heat exchanger fin hemispherical dimples, 3.2.2 is upper heat exchanger fin transition pit.
Figure 12 is upper heat exchanger fin hemispherical dimples cross-section diagram in the present invention.
Figure 13 is upper heat exchanger fin transition pit arrangement I in the present invention (transition pit is not extend to hemispherical dimples).
Figure 14 is upper heat exchanger fin transition pit arrangement II in the present invention (transition pit is verified to hemispherical dimples).
Figure 15 is upper heat exchanger fin transition pit cross-section diagram in the present invention.
Figure 16 is fluid distributor upper cover plate schematic diagram in the present invention, and wherein 3.1.1 is tabletting on fluid distributor.
Figure 17 is tabletting front view on fluid distributor in the present invention.
Figure 18 is fluid distributor upper cover plate cross-section diagram in the present invention, wherein 3.1.1 is tabletting on fluid distributor,
3.1.2 for fluid distributor upper limit position block.
Figure 19 is fluid distribution pipe sectional view in the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing.
A kind of brazing plate type heat exchanger proposed by the present invention, the specific technical solution taken are:Including stacking gradually pricker
The heat exchanger plates being welded together, and fluid distributor is equipped between two neighboring heat exchanger plates, entire heat exchanger is with about two pieces prickers
The heat exchanger plates of weldering and the unit of fluid distributor are formed, and are respectively lower cover 1, fluid distribution pipe 2 and upper cover plate from bottom to up
3, as shown in Figure 1.Fluid distribution pipe 2 is connect respectively with lower cover 1 and upper cover plate 2 using brazing mode, as shown in Fig. 2, wherein A
For feed liquor corner apertures, B be closing corner apertures, C is closing corner apertures, D is liquid corner apertures.
Above-mentioned lower cover includes fluid distributor lower cover 1.1 and lower heat exchanger fin 1.2, as shown in Figure 3.The lower heat exchanger fin
There are hemispherical bumps 1.2.1 and transition convex block 1.2.2 in 1.2 surfaces.Above-mentioned 1.2 surface of lower heat exchanger fin is according to hemispherical bumps
1.2.1 distribution density is divided into tri- regions of X, Y, Z, X, Z region hemispherical bumps 1.2.1 centre of sphere spacing dimension bX、Z=
The centre of sphere spacing dimension b of 7mm, Y region hemispherical bumps 1.2.1Y=5.8mm, the radius a=of above-mentioned hemispherical bumps 1.2.1
2mm, as shown in Figure 4.Above-mentioned transition convex block 1.2.2 is distributed in the gap that Y regions hemispherical bumps 1.2.1 is surrounded.Above-mentioned mistake
Convex block 1.2.2 vertical views are crossed as cross burr, according to whether extending to hemispherical bumps 1.2.1, Fig. 5 and figure can be divided into
6 two schemes.The width dimensions c=0.5mm of above-mentioned cross burr, d=110 ° of punching press angle, press height e=
0.5mm, as shown in Fig. 5, Fig. 6, Fig. 7.Above-mentioned fluid distributor lower cover 1.1 includes fluid distributor lower sheeting 1.1.1 and stream
Body distributor lower position block 1.1.2, fluid distributor lower sheeting 1.1.1 use integral type stamping technology with lower heat exchanger fin 1.2, and
Distributor lower position block 1.1.2 is connect using soldering tech with fluid distributor lower sheeting 1.1.1, as shown in Figure 8.Above-mentioned fluid
As shown in Figure 9 and Figure 10, above-mentioned fluid distributor lower sheeting 1.1.1 is uniform for distributor lower sheeting 1.1.1 front views and cross-section diagram
It is distributed 3 semicolumn grooves, equal f=45 ° of the subangle of semicolumn groove, the semicolumn groove diameter g=4mm;It is above-mentioned
Fluid distributor lower sheeting 1.1.1 has annular protrusion, h=90 ° of the annular protrusion punching press angle, the annular protrusion punching press
Height dimension i=2mm, the annular protrusion width dimensions j=2.2mm.
Above-mentioned upper cover plate includes fluid distributor upper cover plate 3.1 and lower heat exchanger fin 3.2, as shown in figure 11.The upper heat exchange
There are hemispherical dimples 3.2.1 and transition pit 3.2.2 in 3.2 surface of piece.Above-mentioned 3.2 surface of upper heat exchanger fin is according to hemispherical dimples
3.2.1 distribution density is divided into tri- regions of U, V, W, U, W area hemispherical dimples 3.2.1 centre of sphere spacing dimension lU、W=
The centre of sphere spacing dimension l of 7mm, V region hemispherical dimples 3.2.1V=5.8mm, the radius k=of above-mentioned hemispherical dimples 3.2.1
2mm, as shown in figure 12.Above-mentioned transition pit 3.2.2 is distributed in the gap that V regions hemispherical dimples 3.2.1 is surrounded, above-mentioned mistake
Pit 3.2.2 vertical views are crossed as cross dimpled grain, according to whether extend to hemispherical dimples 3.2.1, can be divided into Figure 13 and
Figure 14 two schemes.The width dimensions m=0.5mm of above-mentioned cross dimpled grain, n=110 ° of punching press angle, press depth o=
0.5mm, as shown in Figure 13, Figure 14, Figure 15.Above-mentioned fluid distributor upper cover plate 3.1 include fluid distributor on tabletting 3.1.1 and
Fluid distributor upper limit position block 3.1.2, tabletting 3.1.1 uses integral type stamping technology with upper heat exchanger fin 3.2 on fluid distributor,
And distributor upper limit position block 3.1.2 is connect using soldering tech with tabletting 3.1.1 on fluid distributor, such as Figure 16 and Figure 18 institutes
Show.Tabletting 3.1.1 front views and cross-section diagram as shown in Figure 17 and Figure 18, are pressed on above-mentioned fluid distributor on above-mentioned fluid distributor
Piece 3.1.1 is uniformly distributed 3 semicolumn tongues, equal p=45 ° of the subangle of semicolumn tongue, the semicolumn tongue diameter q
=4mm;Tabletting 1.1.1 has ring-shaped depression, r=90 ° of the ring-shaped depression punching press angle, the ring on above-mentioned fluid distributor
Shape recess press depth size s=2mm, the ring-shaped depression width dimensions t=2.2mm.
Above-mentioned fluid distribution pipe orifice is cone-shaped inner hole, as shown in figure 19.Above-mentioned fluid distribution pipe liquid outlet diameter u=
1mm;Above-mentioned fluid distribution pipe overall diameter v=3.9mm;Above-mentioned fluid distribution pipe bellmouth taper w=1:11;Above-mentioned fluid distribution
Length of tube x=6.6mm.
The foregoing is merely illustrative of the preferred embodiments of the present invention, it will be understood by those skilled in the art that not departing from the present invention
Spirit and scope in the case of, various changes or equivalent replacement can be carried out to these features and embodiment.In addition, in this hair
Under bright introduction, it can modify to adapt to particular situation and material without departing from this hair to these features and embodiment
Bright spirit and scope.Therefore, the present invention is not limited to the particular embodiment disclosed, and falls with the power of the application
Embodiment in sharp claimed range belongs to protection scope of the present invention.
Claims (8)
1. a kind of brazing plate type heat exchanger, it is characterised in that:It is respectively lower heat exchanger fin, fluid distributor and upper heat exchange from bottom to up
Piece;Fluid distributor is respectively fluid distributor lower sheeting, fluid distributor lower position block, fluid distribution pipe, stream from bottom to up
Tabletting on body distributor upper limit position block and fluid distributor;The upper and lower tabletting of fluid distributor uses one with upper and lower heat exchanger fin respectively
Body formula stamping technology connects;Fluid distributor upper and lower limit block and fluid distribution pipe are adopted respectively with the upper and lower tabletting of fluid distributor
It is connected with soldering tech.
2. a kind of brazing plate type heat exchanger according to claim 1, it is characterised in that:The lower heat exchanger fin surface has half
Spherical protrusions and transition convex block;The lower heat exchanger fin surface is divided into close quarters and sparse according to the distribution density of hemispherical bumps
Region, the centre of sphere spacing dimension of hemispherical bumps is 6.5~7.5mm in close quarters, the ball of hemispherical bumps in sparse region
Heart spacing dimension is 5.5~6.1mm, and hemispherical bumps radius is 1.5~2.5mm;The transition convex block is distributed in intensive
In the gap that region hemispherical bumps are surrounded, shape is cross burr, according to whether extending to hemispherical bumps
It can use a variety of different distributions schemes;The cross burr width dimensions are 0.4~0.6mm, the cross burr punching
It is 110 °~120 ° to press angle, and the cross burr press height is 0.4~0.6mm.
3. a kind of brazing plate type heat exchanger according to claim 1, it is characterised in that:The upper heat exchanger fin surface has half
Spherical pit and transition pit;The upper heat exchanger fin surface is divided into close quarters and sparse according to the distribution density of hemispherical dimples
Region, the centre of sphere spacing dimension of hemispherical dimples is 6.5~7.5mm in close quarters, the ball of hemispherical dimples in sparse region
Heart spacing dimension is 5.5~6.1mm, and hemispherical dimples radius is 1.5~2.5mm;The transition pit distribution is in close quarters
In the gap that hemispherical dimples are surrounded, shape is cross dimpled grain, be can use according to whether extending to hemispherical dimples
A variety of different distributions schemes;The cross dimpled grain width dimensions be 0.4~0.6mm, the cross dimpled grain punching press angle
Ranging from 110 °~120 ° of degree, the cross dimpled grain press depth are 0.4~0.6mm.
4. a kind of brazing plate type heat exchanger according to Claims 2 or 3, it is characterised in that:Lower heat exchanger fin and upper heat exchanger fin
Surface texture is symmetrical, and corresponding size value is identical.
5. a kind of brazing plate type heat exchanger according to claim 1, it is characterised in that:The fluid distributor lower sheeting table
Face is uniformly distributed multiple semicolumn grooves, and the equal subangle of semicolumn groove is 30 °~60 °, the semicolumn groove diameter
For 3~5mm;Above-mentioned fluid distributor lower sheeting surface have annular protrusion, the annular protrusion punching press angle for 80 °~
100 °, the annular protrusion press height size is 1.5~2.5mm, 2.0~2.4mm of the annular protrusion width dimensions.
6. a kind of brazing plate type heat exchanger according to claim 1, it is characterised in that:Wafer surface is equal on fluid distributor
The even multiple semicolumn tongues of distribution, the equal subangle of semicolumn tongue are 30 °~60 °, the semicolumn tongue a diameter of 3~
5mm;Wafer surface has ring-shaped depression on above-mentioned fluid distributor, and the ring-shaped depression punching press angle is 80 °~100 °, described
Ring-shaped depression press height size is 1.5~2.5mm, 2.0~2.4mm of the ring-shaped depression width dimensions.
7. a kind of brazing plate type heat exchanger according to claim 5 or 6, it is characterised in that:Fluid distributor lower sheeting with
Tabletting is symmetrical structure on fluid distributor, and corresponding size value is identical.
8. a kind of brazing plate type heat exchanger according to claim 1, it is characterised in that:The fluid distribution pipe has taper
Endoporus;A diameter of 0.7~the 1.3mm of fluid distribution pipe liquid outlet, the fluid distribution pipe overall diameter be 2.9~4.9mm, institute
It is 1 to state fluid distribution pipe cone-shaped inner hole taper:12~1:10, the fluid distribution length of tube is 6~7mm.
Priority Applications (1)
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CN201810155283.5A CN108195212B (en) | 2018-02-23 | 2018-02-23 | Brazing plate type heat exchanger |
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CN108195212B CN108195212B (en) | 2024-05-14 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU200477U1 (en) * | 2020-08-04 | 2020-10-27 | федеральное государственное бюджетное образовательное учреждение высшего образования «Белгородский государственный технологический университет им. В.Г. Шухова» | HEAT EXCHANGER PLATE |
US20220187031A1 (en) * | 2020-12-10 | 2022-06-16 | Danfoss Micro Channel Heat Exchanger (Jiaxing) Co., Ltd. | Distributor for plate heat exchanger and plate heat exchanger |
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