CN111678365A - Tai Ji-shaped heat exchange fin and plate heat exchanger - Google Patents

Tai Ji-shaped heat exchange fin and plate heat exchanger Download PDF

Info

Publication number
CN111678365A
CN111678365A CN202010620587.1A CN202010620587A CN111678365A CN 111678365 A CN111678365 A CN 111678365A CN 202010620587 A CN202010620587 A CN 202010620587A CN 111678365 A CN111678365 A CN 111678365A
Authority
CN
China
Prior art keywords
heat exchange
fluid
plate
heat exchanger
concave surface
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.)
Pending
Application number
CN202010620587.1A
Other languages
Chinese (zh)
Inventor
周成樑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Feks Heat Transfer Technology Co ltd
Original Assignee
Jiangsu Feks Heat Transfer Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Feks Heat Transfer Technology Co ltd filed Critical Jiangsu Feks Heat Transfer Technology Co ltd
Priority to CN202010620587.1A priority Critical patent/CN111678365A/en
Publication of CN111678365A publication Critical patent/CN111678365A/en
Pending legal-status Critical Current

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
    • F28D9/04—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 being formed by spirally-wound plates or laminae
    • 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

Abstract

The invention discloses a Tai Ji-shaped heat exchange fin and a plate heat exchanger, and relates to the field of heat exchange between fluids. Two ends of the Tai Ji-shaped heat exchange plate are respectively provided with a first fluid inlet and a second fluid outlet, and the center of the heat exchange plate is provided with the first fluid outlet and the second fluid inlet; the front surface of the heat exchange plate is provided with a spiral first concave surface, the outermost end of the first concave surface is smoothly communicated with the first fluid inlet, and the central end of the first concave surface is smoothly communicated with the first fluid outlet; the reverse surface of the heat exchange plate is provided with a spiral second concave surface, the outermost end of the second concave surface is smoothly communicated with the second fluid outlet, and the central end of the second concave surface is smoothly communicated with the second fluid inlet. The Tai Ji-shaped heat exchange plate does not have a transition plane, the concave surface is smoothly communicated with the fluid inlet and the fluid outlet, the flowing dead angle is not easy to generate, the flowing speed of the fluid is accelerated, and the heat exchange efficiency is high.

Description

Tai Ji-shaped heat exchange fin and plate heat exchanger
Technical Field
The invention relates to the field of heat exchange between fluids, in particular to a Tai Ji-shaped heat exchange plate and a plate heat exchanger.
Background
The traditional Spiral Plate Heat Exchanger (SPHE) has thick plate wall, wide flow channel, lower heat transfer efficiency than a Brazing Plate Heat Exchanger (BPHE) and lower operating pressure than 2.5 MPa. The pressure bearing of the common brazing plate type heat exchanger is higher than that of a spiral plate type heat exchanger, the operating pressure is lower than 4MPa, and the shape of a plate sheet comprises vertical corrugations, transverse corrugations, herringbone corrugations, point corrugations and the like. The contact between the corrugations is the main welding surface, and the corrugations all generate dead corners. The brazed plate heat exchanger adopts a single-flow structure and cannot be blocked, and when the brazed plate heat exchanger adopts a multi-flow structure, medium fluid is easy to block.
Diffusion welding is mainly applied to dissimilar metals and composite materials, a printed circuit board heat exchanger (PCHE) is manufactured by adopting a chemical etching and diffusion welding process, the pressure bearing is higher than that of the BPHE, but the manufacturing cost is too high, and the PCHE can only be applied to certain industries such as ocean engineering, energy development, nuclear power and petrifaction in 2020 now.
Disclosure of Invention
The invention provides a Tai Ji-shaped heat exchange sheet and a plate heat exchanger, which are not easy to generate flowing dead angles, accelerate the flowing speed of fluid and have high heat exchange efficiency.
The two end parts of the Tai Ji-shaped heat exchange plate are respectively provided with a first fluid inlet and a second fluid outlet, and the center of the heat exchange plate is provided with the first fluid outlet and the second fluid inlet; the front surface of the heat exchange plate is provided with a spiral first concave surface, the outermost end of the first concave surface is smoothly communicated with the first fluid inlet, and the central end of the first concave surface is smoothly communicated with the first fluid outlet; the reverse surface of the heat exchange plate is provided with a spiral second concave surface, the outermost end of the second concave surface is smoothly communicated with the second fluid outlet, and the central end of the second concave surface is smoothly communicated with the second fluid inlet.
The Tai Ji-shaped heat exchange plate does not have a transition plane, the concave surface is smoothly communicated with the fluid inlet and the fluid outlet, and a flowing dead angle is not easy to generate in the flowing of the first fluid and the second fluid, so that the flowing speed of the first fluid and the second fluid is accelerated, and the heat exchange efficiency is high.
Further, the first concave surface, the first fluid inlet and the first fluid outlet are located on the same plane, the width of the outermost end of the first concave surface is gradually increased to be not smaller than the diameter of the first fluid inlet, and the width of the central end of the first concave surface is gradually increased to be not smaller than the diameter of the first fluid outlet; the second concave surface, the second fluid inlet and the second fluid outlet are located on the same plane, the width of the outermost end of the second concave surface is gradually increased to be not smaller than the diameter of the second fluid outlet, and the width of the central end of the second concave surface is gradually increased to be not smaller than the diameter of the second fluid inlet.
Furthermore, the first concave surface of the front surface of the heat exchange plate correspondingly forms a first convex surface of the back surface of the heat exchange plate, the second concave surface of the back surface of the heat exchange plate correspondingly forms a second convex surface of the front surface of the heat exchange plate, and the first concave surface and the second convex surface of the front surface of the heat exchange plate share a side wall. The Taiji-shaped heat exchange plate is formed by one-time cold stamping of the die, and is thin and low in cost.
Furthermore, the cross section that first concave surface and the lateral wall of both sides formed is isosceles trapezoid, the cross section that second convex surface and the lateral wall of both sides formed is isosceles trapezoid, and space utilization is high, and flow resistance is little.
Furthermore, the first fluid inlet and the second fluid outlet are symmetrically arranged, and the first fluid outlet and the second fluid inlet are symmetrically arranged, so that the structure is compact, and the installation is convenient.
The plate heat exchanger comprises an upper cover plate, a lower cover plate and a plurality of superposed heat exchange sheets, wherein the heat exchange sheets comprise an A-type heat exchange sheet and a B-type heat exchange sheet, the A-type heat exchange sheet is the Taiji-shaped heat exchange sheet, the back surface of the A-type heat exchange sheet is in mirror symmetry with the front surface of the B-type heat exchange sheet, and the front surface of the A-type heat exchange sheet is in mirror symmetry with the back surface of the B-type heat exchange sheet; the back surface of the B-type heat exchange plate is superposed on the front surface of the A-type heat exchange plate to form a first flow passage, and the back surface of the A-type heat exchange plate is superposed on the front surface of the B-type heat exchange plate to form a second flow passage; through holes corresponding to the first fluid outlet and the second fluid inlet are reserved on the upper cover plate of the heat exchanger, through holes corresponding to the first fluid inlet and the second fluid outlet are reserved on the lower cover plate of the heat exchanger, and the first fluid inlets, the first fluid outlets, the second fluid inlets and the second fluid outlets of the heat exchange sheets are communicated with each other. The single-flow plate heat exchanger adopts the Taiji-shaped heat exchange fins, so that fluid flows more smoothly without dead angles, the pressure bearing capacity is enhanced, and the heat exchange effect is good.
Furthermore, through holes corresponding to the first fluid outlet and the second fluid inlet are reserved in the upper cover plate and the lower cover plate of the heat exchanger respectively, sealing pieces are arranged among the first fluid inlets, the first fluid outlets, the second fluid inlets and the second fluid outlets of the plurality of heat exchange fins respectively, the sealing pieces of the first fluid inlets and the sealing pieces of the first fluid outlets are arranged on different heat exchange fins, and the sealing pieces of the second fluid inlets and the sealing pieces of the second fluid outlets are arranged on different heat exchange fins. The multi-flow plate heat exchanger adopts the Taiji-shaped heat exchange fins, so that the flow rate of the first fluid and the second fluid can be increased, the problem of blockage of a multi-flow structure of a common brazed plate heat exchanger is solved, and the heat exchange temperature difference is further increased.
Furthermore, the sealing piece of the first fluid inlet and the sealing piece of the first fluid outlet are uniformly spaced, and the sealing piece of the second fluid inlet and the sealing piece of the second fluid outlet are uniformly spaced, so that uniform heat exchange between the first fluid and the second fluid is facilitated.
Furthermore, the heat exchanger is arranged laterally, so that shutdown liquid drainage is facilitated; the heat exchanger is placed in the forward direction, and full heat exchange is facilitated.
Compared with the traditional spiral plate type heat exchanger, the invention reduces the wall thickness of the heat exchange plate, increases the heat transfer efficiency, reduces the section size of the flow channel and improves the flow speed; compared with the common brazed plate heat exchanger, the invention removes the transition plane of the heat exchange sheet, is not easy to generate flow dead angles, accelerates the flow rate of fluid and has high heat exchange efficiency; the multi-flow plate heat exchanger adopts the Taiji-shaped heat exchange fins, so that the flow rate of the first fluid and the second fluid can be increased, the fluid flows more smoothly, the problem of blockage of a multi-flow structure of a common brazed plate heat exchanger is solved, and the heat exchange temperature difference is further increased.
Drawings
FIG. 1 is a schematic plan view and a sectional view of an A-type heat exchanger plate;
FIG. 2 is a schematic plan view and a sectional view of a type B heat exchanger plate;
FIG. 3 is a schematic plan view of a conventional heat exchanger plate;
FIG. 4 is a schematic view of alternate stacking of type A and type B plates;
FIG. 5 is a schematic cross-sectional view of a single-pass plate heat exchanger;
FIG. 6 is a schematic flow diagram of fluid in a single pass plate heat exchanger;
FIG. 7 is a schematic cross-sectional structure of a multi-pass plate heat exchanger;
FIG. 8 is a schematic flow diagram of a fluid in a multi-pass plate heat exchanger;
FIG. 9 is a schematic view of a plate heat exchanger in a side-to-side arrangement;
fig. 10 is a schematic view of a plate heat exchanger in a forward position.
Reference numerals: 1. the sealing piece comprises a first fluid inlet, 2, a first fluid outlet, 3, a second fluid inlet, 4, a second fluid outlet, 5, a concave surface, 6, a convex surface, 7, a flow channel, 8, a welding surface, 9, a side wall, 10, a transition plane, 11, a through hole, 12, a through hole, 13, 14, a through hole, 15, an upper cover plate, 16, a lower cover plate and 17.
Detailed Description
The invention is further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 and 2, the tai chi heat exchanger plate of the present invention includes an a-type heat exchanger plate and a B-type heat exchanger plate, and is formed by one-step cold stamping with a die, and the front and back surfaces of the plate form spiral high and low planes. Fig. 1 shows an a-shaped plate, in which the spiral plane of the shaded portion of the front surface of the plate is a concave surface 5, the spiral plane of the blank portion of the front surface of the plate is a convex surface 6, and the concave surface 5 and the convex surface 6 are spaced apart. Correspondingly, a convex surface 6 on the reverse side of the plate is formed at a position corresponding to the concave surface 5 on the front side of the plate, and a concave surface 5 on the reverse side of the plate is formed at a position corresponding to the convex surface 6 on the front side of the plate.
As shown in fig. 1, a first fluid inlet 1 and a second fluid outlet 4 are respectively arranged at two ends of an a-type heat exchanger plate, a first fluid outlet 2 and a second fluid inlet 3 are arranged at the center of the a-type heat exchanger plate, and a first fluid can flow from the first fluid inlet 1 to the first fluid outlet 2 on the front surface of the a-type heat exchanger plate; on the opposite side of the plate type a, the second fluid may flow from the second fluid inlet 3 to the second fluid outlet 4. The first fluid and the second fluid perform countercurrent heat exchange, and the heat exchange efficiency is improved.
As shown in fig. 1 and 2, the back surface of the a-type heat exchanger plate is mirror-symmetrical to the front surface of the B-type heat exchanger plate, and the front surface of the a-type heat exchanger plate is mirror-symmetrical to the back surface of the B-type heat exchanger plate, that is, the a-type heat exchanger plate and the B-type heat exchanger plate are symmetrical. As shown in fig. 2, on the front side of the type B plate, the second fluid may flow from the second fluid inlet 3 to the second fluid outlet 4; on the opposite side of the plate type B, the first fluid may flow from the first fluid inlet 1 to the first fluid outlet 2.
As shown in fig. 3, the conventional plate is provided with a transition plane 10 between the first fluid inlet and the concave or convex surface, and between the second fluid inlet and the concave or convex surface, and the transition plane 10 is used for guiding the first fluid or the second fluid from the wider fluid inlet to the narrower concave or convex surface. However, due to the existence of the transition plane 10, the first fluid or the second fluid may flow in the existing heat exchanger plate to cause a dead flow angle, thereby affecting the heat exchange effect. As shown in fig. 1 and 2, transition planes do not exist on the front and back surfaces of the a-type plate and the B-type plate, the concave surface 5, the first fluid inlet 1 and the first fluid outlet 2 are located on the same plane, the width of the outermost end of the concave surface 5 is gradually increased to be slightly larger than the diameter of the first fluid inlet 1, and the width of the central end of the concave surface 5 is gradually increased to be slightly larger than the diameter of the first fluid outlet 2; similarly, the convex surface 6, the second fluid inlet 3 and the second fluid outlet 4 are positioned on the same plane, the width of the outermost end of the convex surface 6 is gradually increased to be slightly larger than the diameter of the second fluid outlet 4, and the width of the central end of the convex surface 6 is gradually increased to be slightly larger than the diameter of the second fluid inlet 3; that is, the outermost end of the concave surface 5 is smoothly communicated with the first fluid inlet 1, the central end of the concave surface 5 is smoothly communicated with the first fluid outlet 2, the outermost end of the convex surface 6 is smoothly communicated with the second fluid outlet 4, and the central end of the convex surface 6 is smoothly communicated with the second fluid inlet 3, so that the flow rate of the first fluid and the second fluid is increased, and the heat exchange effect is better.
As shown in fig. 4, a plurality of a-type heat exchange plates and B-type heat exchange plates are alternately stacked, the back surfaces of the a-type heat exchange plates are stacked on the front surfaces of the B-type heat exchange plates, the back surfaces of the B-type heat exchange plates are stacked on the front surfaces of the a-type heat exchange plates, so that a complete flow channel 7 is formed, the flow channel 7 is enclosed by a concave surface 5, a convex surface 6 and side walls 9 at two sides, the cross section of the flow channel 7 is an approximate hexagon enclosed by two isosceles trapezoids, and a first fluid or a second fluid flows in the flow channel 7. The welding surface 8 of the A-type heat exchange plate and the welding surface 8 of the B-type heat exchange plate are welded into a whole through vacuum brazing, so that the plate heat exchanger is high in pressure bearing capacity.
As shown in fig. 5 and 6, the single-pass plate heat exchanger of the present invention includes an upper cover plate 15, a lower cover plate 16, and a plurality of a-type heat exchanger fins and B-type heat exchanger fins, wherein the upper cover plate 15 has through holes 12 and 13 corresponding to the first fluid inlet 2 and the second fluid inlet 3, respectively, and the lower cover plate 16 has through holes 11 and 14 corresponding to the first fluid inlet 1 and the second fluid outlet 4, respectively. The first fluid inlets 1 of the heat exchange plates are communicated, and the first fluid outlets 2 of the heat exchange plates are communicated.
The first fluid flows into the flow channels 7 of each layer from the through holes 11 of the lower cover plate 16, exchanges heat with the second fluid at each layer, and finally flows out of the heat exchanger from the through holes 12 of the upper cover plate 15. Similarly, the second fluid inlets 3 of the heat exchange plates are communicated, the second fluid outlets 4 of the heat exchange plates are communicated, the second fluid flows into the flow channels 7 of each layer from the through holes 13 of the upper cover plate 15, exchanges heat with the first fluid at each layer, and finally flows out of the heat exchanger from the through holes 14 of the lower cover plate 16.
As shown in fig. 7 and 8, the multi-flow plate heat exchanger of the present invention includes an upper cover plate 15, a lower cover plate 16, and a plurality of a-type heat exchanger fins and B-type heat exchanger fins, wherein the upper cover plate 15 and the lower cover plate 16 are provided with through holes 12 and 13 corresponding to the first fluid outlet 2 and the second fluid inlet 3, respectively. The sealing piece 17 is arranged between the heat exchange plates, specifically, the sealing piece 17 is arranged between the first fluid inlets 1 or the first fluid outlets 2 of two adjacent heat exchange plates, so that the effect of sealing the first fluid inlets 1 or the first fluid outlets 2 is achieved, but the sealing piece 17 cannot be arranged between the first fluid inlets 1 and the first fluid outlets 2 of the two heat exchange plates at the same time, and fluid blockage is avoided. In other embodiments of the present invention, the number of the sealing members 17 may be set according to the number of the heat exchange fins and the heat exchange condition.
The first fluid flows into the flow channels 7 of each layer from the through holes 12 of the lower cover plate 16, and due to the obstruction of the sealing piece 17, the first fluid cannot directly flow out of the heat exchanger from the through holes 11 of the upper cover plate 15, but continuously changes the flow direction between the first fluid inlet 1 and the first fluid outlet 2 of each layer of heat exchange fins, exchanges heat with the second fluid, enhances the heat exchange effect, and finally flows out of the heat exchanger from the through holes 12 of the upper cover plate 15. Similarly, the sealing members 17 are respectively arranged between the second fluid inlets 3 and the second fluid outlets 4 of two adjacent heat exchange plates of the multi-flow plate heat exchanger. The second fluid flows into the flow channels 7 of each layer from the through holes 13 of the upper cover plate 15, and due to the obstruction of the sealing piece 17, the flow direction of the second fluid is continuously changed between the second fluid inlets 3 and the second fluid outlets 4 of the heat exchange plates of each layer, the second fluid exchanges heat with the first fluid, and finally the second fluid flows out of the heat exchanger from the through holes 13 of the lower cover plate 16.
As mentioned above, transition planes do not exist on the front and back surfaces of the A-type heat exchange plate and the B-type heat exchange plate, and the spiral flow channel 7 is not easy to generate a flow dead angle, so that the multi-flow plate heat exchanger formed by the multi-flow plate heat exchanger can accelerate the flow rate of the first fluid and the second fluid, solve the problem of blockage of a multi-flow structure of a common brazed plate heat exchanger, and further increase the heat exchange temperature difference of the multi-flow plate heat exchanger.
The plate heat exchanger of the invention has the typical flow structures of the single-flow and multi-flow, but is not limited to the two structures. In the present embodiment, the sealing members 17 between the first fluid inlets 1 and the sealing members 17 between the first fluid outlets 2 in the multi-flow plate heat exchanger are spaced by the same number of heat exchange fins, that is, uniformly spaced; in other embodiments, the seals 17 between the first fluid inlets 1 and the seals 17 between the first fluid outlets 2 in a multi-plate heat exchanger may be unevenly spaced. Furthermore, in other embodiments, welding may be used to close the first fluid inlet 1 or the first fluid outlet 2 of the plate to serve the same function as the seal 17.
The plate heat exchanger has a plurality of layers of spiral flow channels, the flow velocity of fluid in each layer is high, collision and friction are continuously generated in the flowing process, turbulence is easily formed, and the heat transfer effect is ensured. The plate heat exchanger of the invention provides two mounting modes, one is laterally arranged, as shown in figure 9, which is beneficial to stopping and draining liquid, and the other is positively arranged, as shown in figure 10, which is beneficial to fully exchanging heat.
The above examples are only preferred embodiments of the present invention, it should be noted that: it will be apparent to those skilled in the art that various modifications and equivalents can be made without departing from the spirit of the invention, and it is intended that all such modifications and equivalents fall within the scope of the invention as defined in the claims.

Claims (9)

1. A taiji shape heat exchanger fin which characterized in that: a first fluid inlet and a second fluid outlet are respectively arranged at two ends of the heat exchange plate, and a first fluid outlet and a second fluid inlet are arranged at the center of the heat exchange plate; the front surface of the heat exchange plate is provided with a spiral first concave surface, the outermost end of the first concave surface is smoothly communicated with the first fluid inlet, and the central end of the first concave surface is smoothly communicated with the first fluid outlet; the reverse surface of the heat exchange plate is provided with a spiral second concave surface, the outermost end of the second concave surface is smoothly communicated with the second fluid outlet, and the central end of the second concave surface is smoothly communicated with the second fluid inlet.
2. The tai chi heat exchanger plate of claim 1, wherein: the first concave surface, the first fluid inlet and the first fluid outlet are positioned on the same plane, the width of the outermost end of the first concave surface is gradually increased to be not smaller than the diameter of the first fluid inlet, and the width of the central end of the first concave surface is gradually increased to be not smaller than the diameter of the first fluid outlet; the second concave surface, the second fluid inlet and the second fluid outlet are located on the same plane, the width of the outermost end of the second concave surface is gradually increased to be not smaller than the diameter of the second fluid outlet, and the width of the central end of the second concave surface is gradually increased to be not smaller than the diameter of the second fluid inlet.
3. The tai chi heat exchanger plate of claim 1, wherein: the heat exchange plate comprises a heat exchange plate body, wherein a first concave surface on the front side of the heat exchange plate body correspondingly forms a first convex surface on the back side of the heat exchange plate body, a second concave surface on the back side of the heat exchange plate body correspondingly forms a second convex surface on the front side of the heat exchange plate body, and a side wall is shared between the first concave surface and the second convex surface on the front side of the heat exchange plate body.
4. A tai chi heat exchanger plate according to claim 3, wherein: the cross section that first concave surface and the lateral wall of both sides formed is isosceles trapezoid, the cross section that second convex surface and the lateral wall of both sides formed is isosceles trapezoid.
5. A Tai Chi heat exchanger plate according to any one of claims 1-4, wherein: the first fluid inlet and the second fluid outlet are symmetrically arranged, and the first fluid outlet and the second fluid inlet are symmetrically arranged.
6. The utility model provides a plate heat exchanger, includes upper cover plate, lower apron and polylith superimposed heat exchanger fin, its characterized in that: the heat exchange plates comprise an A-type heat exchange plate and a B-type heat exchange plate, the A-type heat exchange plate is the Tai Ji-shaped heat exchange plate in any one of claims 1 to 4, the back surface of the A-type heat exchange plate is in mirror symmetry with the front surface of the B-type heat exchange plate, and the front surface of the A-type heat exchange plate is in mirror symmetry with the back surface of the B-type heat exchange plate; the back surface of the B-type heat exchange plate is superposed on the front surface of the A-type heat exchange plate to form a first flow passage, and the back surface of the A-type heat exchange plate is superposed on the front surface of the B-type heat exchange plate to form a second flow passage; through holes corresponding to the first fluid outlet and the second fluid inlet are reserved on the upper cover plate of the heat exchanger, through holes corresponding to the first fluid inlet and the second fluid outlet are reserved on the lower cover plate of the heat exchanger, and the first fluid inlets, the first fluid outlets, the second fluid inlets and the second fluid outlets of the heat exchange sheets are communicated with each other.
7. A plate heat exchanger according to claim 6, wherein: the heat exchanger is characterized in that the upper cover plate and the lower cover plate of the heat exchanger are only provided with through holes corresponding to the first fluid outlet and the second fluid inlet respectively, sealing pieces are arranged among the first fluid inlets, the first fluid outlets, the second fluid inlets and the second fluid outlets of the plurality of heat exchange fins respectively, the sealing pieces of the first fluid inlets and the sealing pieces of the first fluid outlets are arranged on different heat exchange fins, and the sealing pieces of the second fluid inlets and the sealing pieces of the second fluid outlets are arranged on different heat exchange fins.
8. A plate heat exchanger according to claim 7, wherein: the sealing pieces of the first fluid inlet and the first fluid outlet are evenly spaced, and the sealing pieces of the second fluid inlet and the second fluid outlet are evenly spaced.
9. A plate heat exchanger according to any one of claims 6-8, wherein: the heat exchanger is placed laterally or forwardly.
CN202010620587.1A 2020-06-30 2020-06-30 Tai Ji-shaped heat exchange fin and plate heat exchanger Pending CN111678365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010620587.1A CN111678365A (en) 2020-06-30 2020-06-30 Tai Ji-shaped heat exchange fin and plate heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010620587.1A CN111678365A (en) 2020-06-30 2020-06-30 Tai Ji-shaped heat exchange fin and plate heat exchanger

Publications (1)

Publication Number Publication Date
CN111678365A true CN111678365A (en) 2020-09-18

Family

ID=72456970

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010620587.1A Pending CN111678365A (en) 2020-06-30 2020-06-30 Tai Ji-shaped heat exchange fin and plate heat exchanger

Country Status (1)

Country Link
CN (1) CN111678365A (en)

Similar Documents

Publication Publication Date Title
US7334631B2 (en) Heat exchanger
US9250019B2 (en) Plate heat exchanger
CN104896977A (en) Integrated primary surface micro-channel compact heat exchanger
EP1998132A1 (en) Rib plate type heat exchanger
US20120125583A1 (en) Heat exchanger
CN102395853A (en) Plate heat exchanger
CN112097552A (en) Combined compact heat exchanger core
CN111059934A (en) Composite construction printed circuit board formula heat exchanger core
CN115183609A (en) Heat exchanger core and printed circuit board type heat exchanger comprising same
CN113154915A (en) Discontinuous S-shaped fin heat exchange plate and PCHE core body
CN111457753B (en) Plate condenser capable of discharging liquid in middle
US20110180247A1 (en) Heat exchanger
JP5414502B2 (en) Plate heat exchanger and heat pump device
CN212320501U (en) Tai Ji-shaped heat exchange fin and plate heat exchanger
CN111678365A (en) Tai Ji-shaped heat exchange fin and plate heat exchanger
CN215832535U (en) Mixed rib heat exchanger core and heat exchanger
CN115979028A (en) Efficient compact diffusion welding heat exchanger core
CN210833173U (en) Heat exchanger plate bundle for phase change heat exchange
CN108548437B (en) Bionic-based fishbone-type micro-staggered alveolar heat exchanger core and heat exchanger
CN112629295A (en) Novel printed circuit board type heat exchanger core body of three-dimensional spiral winding type runner
CN218480949U (en) Heat exchanger core and printed circuit board type heat exchanger comprising same
CN220472395U (en) Plate heat exchanger with high-efficient profile of tooth
CN215930645U (en) Discontinuous S-shaped fin heat exchange plate and PCHE core body
CN219572764U (en) Brazed heat exchanger
CN113701545B (en) Heat exchange plate group and 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