CN115265242A - Heat exchanger and manufacturing method - Google Patents
Heat exchanger and manufacturing method Download PDFInfo
- Publication number
- CN115265242A CN115265242A CN202211169723.5A CN202211169723A CN115265242A CN 115265242 A CN115265242 A CN 115265242A CN 202211169723 A CN202211169723 A CN 202211169723A CN 115265242 A CN115265242 A CN 115265242A
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- Prior art keywords
- plates
- flow channel
- plate
- skirt
- runner
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- 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
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/268—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by permanent joints, e.g. by welding
Abstract
The invention provides a heat exchanger, which comprises at least one heat exchange unit, wherein the heat exchange unit comprises a pair of runner plates, the runner plates are provided with a first surface and a second surface, and the first surface and the second surface are oppositely arranged; the first surface is provided with a skirt edge and a first coating part, the skirt edge is arranged on the periphery of the edge of the first surface, and the first coating part is formed by surrounding the skirt edge; the first coating portion is adapted to coat a solder resist; the pair of flow channel plates are attached, and the first surfaces of the pair of flow channel plates are arranged oppositely; welding the skirt edges of the pair of runner plates by diffusion welding; and under the action of external force, the two second surfaces are stretched towards opposite directions, so that an internal liquid flow channel is formed between the two flow channel plates. The structure is suitable for being manufactured by adopting a drawing process after flat sheet plates are welded, and the processing cost is greatly reduced. The invention further provides a manufacturing method of the heat exchanger.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a heat exchanger and a manufacturing method thereof.
Background
The heat exchangers in the prior art have more types, but are all manufactured by combining and manufacturing molded heat exchange tubes or heat exchange plates, and the manufacture is more complex. In the plate heat exchanger, generally, a flow channel is manufactured on a plate by pressing or etching and the like, and then a plurality of plates are stacked and assembled to form the heat exchanger. Diffusion welding refers to a welding mode that the surfaces of materials which are in contact with each other approach each other under the action of temperature and pressure, local plastic deformation occurs, mutual diffusion occurs among atoms, and a new diffusion layer is formed at an interface, so that reliable connection is realized. When the plate heat exchanger is subjected to diffusion welding, the stacked plates are integrally conveyed into a diffusion welding furnace for welding, but a plurality of hollow flow channels exist in the heat exchanger, so that the effective volume in the diffusion welding furnace is occupied, the number of the heat exchangers placed into the diffusion welding furnace in the same batch is small, and the welding cost is high.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of complex manufacturing and higher welding cost in the prior art.
In order to solve the technical problem, the technical scheme adopted by the application is as follows:
a heat exchanger comprises at least one heat exchange unit, wherein the heat exchange unit comprises a pair of runner plates, the runner plates are provided with a first surface and a second surface, and the first surface and the second surface are oppositely arranged;
the first surface is provided with a skirt edge and a first coating part, the skirt edge is arranged on the periphery of the edge of the first surface, and the first coating part is formed by surrounding the skirt edge; the first coating portion is adapted to coat a solder resist;
the pair of flow channel plates are attached, and the first surfaces of the pair of flow channel plates are arranged oppositely; welding the skirt edges of the pair of runner plates by diffusion welding; and under the action of external force, the two second surfaces are stretched towards opposite directions, so that an internal liquid flow channel is formed between the two flow channel plates.
Optionally, a central portion is arranged in a middle area of the second surface, and the second surface is further provided with a second coating portion, wherein the second coating portion is formed by an area, which is not the central portion, on the second surface;
a plurality of heat exchange units are stacked in the vertical direction; the second surfaces of two adjacent heat exchange units are overlapped; and welding the central parts of two adjacent heat exchange units by diffusion welding.
Optionally, a plurality of heat exchange units are sequentially connected in the horizontal direction, and horizontally adjacent heat exchange units are connected through the skirt.
Optionally, after the inner liquid flow channel is formed between the two flow channel plates, the opposite skirt rims are welded to form a skirt edge region, the central portion is a flow channel top wall, the second coating portion is a flow channel side wall, and the flow channel side wall is in a slope surface shape and is connected between the outer edge of the flow channel top wall and the inner edge of the skirt edge region.
Optionally, a flow passage hole is formed in the top wall of the flow passage, and the inner flow passages adjacent to each other in the vertical direction are communicated through the flow passage hole; flow passage holes are arranged at both ends of the inner liquid flow passage.
Optionally, the skirt edge region comprises two skirt edge body portions and skirt edge end portions connected to two ends of the skirt edge body portions, the two skirt edge body portions are parallel to each other, and the skirt edge end portions are in an angle shape or an arc shape.
Optionally, the runner plates of two adjacent heat exchange units in the same row are integrally formed by the skirt body parts close to each other.
Optionally, the heat exchange units are arranged in rows and columns in an array structure, the adjacent runner side walls and skirt edge regions of four adjacent heat exchange units jointly enclose an outer liquid runner, and the end part of the outer liquid runner is in an open structure.
A method of manufacturing a heat exchanger, comprising the steps of:
s1: preparing more than two flat-plate-shaped runner plates;
s2: dividing a central part and a second coating part on the second surface of the flow channel plate, and coating the second coating part with the solder-resisting agent;
s3: dividing a skirt edge and a first coating part on the first surface of the runner plate, wherein the skirt edge is positioned on the outer side of the runner plate and is in a continuous annular shape, the outline of the inner edge of the skirt edge is larger than that of the outer contour of the central part, and the first coating part is coated with a solder stopping agent;
s4: one of the following two stacking modes is selected: the first is to distribute the flow channel plates coated with the anti-welding agent in pairs, wherein one pair of flow channel plates comprises a first plate and a second plate, the first surface of the first plate and the first surface of the second plate in the same pair are opposite, and the first plate and the second plate are superposed, so that the skirts of the first plate and the second plate are aligned and attached; the second method is that the runner plate coated with the solder stop is used as a first plate, the runner plate not coated with the solder stop is used as a second plate, the first plate and the second plate are alternately stacked in pairs, and the second surface of the first plate faces to the same direction;
s5: welding the superposed runner plates by adopting diffusion welding; welding the areas of the adjacent runner plates which are not coated with the anti-welding agent together;
s6: and taking out the welded runner plate assembly, stretching the welded runner plate assembly through the central part corresponding to the outermost runner plate, wherein the stretching direction is outward along the superposition direction of the runner plates, so that a runner side wall in a slope is stretched between the adjacent central part and the skirt edge, and the adjacent central part, skirt edge and runner side wall jointly enclose an inner runner.
Alternatively,
in step S1, when preparing the flow field plates, a plurality of flow field plates arranged side by side are integrally formed, and a plurality of flow field plates having the same number of side by side are prepared;
in step S2, on the second surface of the flow channel plate, dividing the corresponding central portion and the second coating portions in parallel number, adjacent second coating portions being connected;
in step S3, dividing corresponding skirt edges and first coating parts according to the number of the skirt edges in parallel on the first surface of the flow channel plate, wherein the adjacent skirt edges are connected;
in step S4, when the first stacking method is adopted, the second surface of the first plate and the second surface of the second plate between different pairs are opposite to each other, and the two plates are stacked, so that the central portions of the two plates are aligned and attached.
By adopting the technical scheme, the invention has the following technical effects:
1. the heat exchanger provided by the invention is made of plastic materials, and is very suitable for being manufactured by welding the flat sheet plates and then adopting a drawing process due to the unique structure, the flat sheet plates do not need to be processed in the modes of rolling, stamping, cutting or etching and the like the traditional mode, and the processing cost is greatly reduced. In addition, the heat exchangers can be stacked into the furnace in a flat manner, but the existing heat exchangers enter the furnace in a state of carrying a plurality of hollow structures, so that the welding space is saved, more heat exchangers can be placed in the same batch, the utilization rate of the diffusion welding furnace is improved, the production efficiency is improved, and the production cost is reduced. In addition, the heat exchanger with the structure has certain variable elasticity on the inner wall of the flow channel and is a flow channel with a variable cross section to a certain extent, so that the heat exchanger can adapt to even if fluid in the flow channel freezes and expands, and the problem that the heat exchanger is damaged by expansion of the frozen fluid in the existing heat exchanger is solved.
2. The heat exchanger manufacturing method provided by the invention has the advantages that the effective volume in the diffusion welding furnace is efficiently utilized, and the whole cost of batch welding is reduced. In addition, the stretching process after welding is simple and easy, the forming is reliable, and compared with the existing processing methods in the modes of rolling, stamping, cutting or etching and the like, the method can reduce the comprehensive cost of the product under the condition of ensuring the quality of the product.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a second surface of a flow field plate according to a first embodiment of an example of the present invention;
fig. 2 is a schematic structural view of a first surface of a flow field plate according to a first embodiment of an example of the present invention;
FIG. 3 is a schematic perspective view of a first embodiment of the present invention;
FIG. 4 is a schematic perspective sectional view of the first embodiment of the present invention;
FIG. 5 is a schematic structural view of a second surface of a flow field plate according to a second embodiment of the present invention;
fig. 6 is a schematic structural view of a first surface of a flow field plate according to a second embodiment of the example of the present invention;
FIG. 7 is a schematic view of a stacking method of plates according to a second embodiment of the present invention;
FIG. 8 is a schematic perspective view of a second embodiment of the present invention;
FIG. 9 is a schematic perspective sectional view of a second embodiment of the present invention;
fig. 10 is a schematic flow diagram of a heat exchange fluid according to a second embodiment of the present invention.
Description of reference numerals:
1-flow passage hole, 2-skirt edge, 3-first coating part, 4-skirt edge body part, 5-skirt edge end part, 6-second coating part, 7-center part, 8-positioning hole, 9-first plate, 10-second plate, 11-inner liquid flow passage, 12-skirt edge area, 13-flow passage side wall, 14-flow passage top wall and 15-outer liquid flow passage.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The present embodiment provides a heat exchanger.
In one embodiment, as shown in fig. 1-4, it comprises at least one heat exchange unit comprising a pair of flow channel plates provided with a first face and a second face, the first face and the second face being oppositely disposed.
The first surface is provided with a skirt edge 2 and a first coating part 3, and the skirt edge 2 is arranged at the edge periphery of the first surface, namely is positioned at the outer side of the runner plate and is in a continuous ring shape; the first coating portion 3 is formed by being surrounded by the skirt 2; the first coating portion 3 is adapted to coat a solder resist.
The pair of flow channel plates are attached, and the first surfaces of the pair of flow channel plates are arranged oppositely; welding the skirt edges 2 of the pair of flow passage plates by diffusion welding; and under the action of external force, the two second surfaces are stretched towards opposite directions, so that an internal liquid runner 11 is formed between the two runner plates.
The heat exchanger can be manufactured by the following method steps:
s1: more than two flow field plates in the form of flat plates are prepared using a plastic material.
S2: the center portion 7 and the second coating portion 6 are defined on the second surface of the flow channel plate, and the second coating portion 6 is coated with a solder resist.
S3: a skirt edge 2 and a first coating portion 3 are divided from a first surface of the flow channel plate, the skirt edge 2 is positioned outside the flow channel plate and is in a continuous ring shape, the outline of the inner edge of the skirt edge 2 is larger than the outline of the central portion 7, and a solder stopping agent is coated on the first coating portion 3.
S4: one of the following two stacking modes is selected: the first is to distribute the flow channel plates coated with the solder-stop agent in pairs, wherein one pair of flow channel plates comprises a first plate 9 and a second plate 10, the first surface of the first plate 9 and the first surface of the second plate 10 in the same pair are opposite, and the first plate and the second plate are superposed, so that the skirts 2 of the two plates are aligned and attached; the second is to use a runner plate coated with a solder resist as the first plate 9 and a runner plate uncoated with a solder resist as the second plate 10, and to stack the first plate 9 and the second plate 10 alternately in pairs with the second surface of the first plate 9 facing uniformly. Although the second stacking method has the advantages of relatively reducing the labor hours for coating and identifying the orientation and being suitable for efficient production, the first method of coating the solder on both plates can reduce the rejection rate of welding due to the fact that the solder-resistant layer is accidentally thinner. In addition, although three pairs of flow field plates are stacked in the embodiment of fig. 3, at least one pair of flow field plates can be stacked to form an effective heat exchange unit as a heat exchanger.
S5: welding the superposed runner plates by adopting diffusion welding; because the adjacent runner plates are provided with the anti-welding agent in a part of the area, the two plates are prevented from being welded together, and the areas of the adjacent runner plates which are not coated with the anti-welding agent are welded together.
S6: the welded runner plate assembly is removed and the welded runner plate assembly is stretched through the central portion 7 corresponding to the outermost runner plate (the outermost runner plate without flux coating corresponds to the central portion 7 adjacent to the flux-coated plate), the stretching direction being outward in the stacking direction of the runner plates, so that the runner side wall 13 is stretched between the adjacent central portion 7 and the skirt 2. Finally, the adjacent central portion 7, skirt 2 and channel side wall 13 together enclose an inner liquid channel 11.
The above embodiment may further: after the inner liquid flow channel 11 is formed between the two flow channel plates, the opposite skirt edges 2 are welded to form a skirt edge area 12, the central part 7 becomes a flow channel top wall 14, the second coating part 6 becomes a flow channel side wall 13, and the flow channel side wall 13 is connected between the outer edge of the flow channel top wall 14 and the inner edge of the skirt edge area 12 in a sloping manner. Compared with the structure of a vertical surface, the flow channel side wall 13 with the slope surface can form the section of the inner liquid flow channel 11 as large as possible by using limited materials.
The specific method of the aforementioned stretching may be implemented in various ways, for example, corresponding pulling members such as welding hooks or connecting columns may be provided on the outermost central portion 7, but in order to ensure the shape of the outermost central portion 7 after stretching, it is preferable to spot-weld the outermost central portion 7 with a stretching tool having the same shape as the central portion 7, and then grind off the welding points after stretching is completed by pulling the tool, so as to remove the tool.
It should be noted that the present manufacturing method does not require that all the flow field plates before being unstretched have the same shape, and it can be produced using the first plate 9 and the second plate 10 which are not completely uniform in outer shape. It is preferable that all the flow field plates before being unstretched have the same shape, but the present manufacturing method can be applied to the flow field plates as long as the first plate 9 and the second plate 10 have the connecting portions of the skirt 2, the central portion 7, and the like which are fit together, and the shape and structure of the other portions of the two plates can be completely different. Likewise, the first plates 9 do not have to be identical in shape between different heat exchange units, as do the second plates 10.
When the heat exchanger is used, liquid to be radiated can be communicated and flows through the inner liquid flow channel 11, and then the heat exchange unit is soaked in the cooling pool or placed in the flowing cooling liquid channel, so that the heat exchanger becomes a radiator; or the liquid to be heated is taken away from the inner liquid flow channel 11, and the liquid with high temperature is taken out from the outer part, so that the heater is formed.
Due to the unique structure, the heat exchanger is very suitable for being manufactured by welding the flat sheet-shaped plastic plate and then adopting a drawing process, the flat sheet plate does not need to be processed in the modes of rolling, stamping, cutting or etching and the like the traditional mode, and the processing cost is greatly reduced. In addition, the heat exchangers can be stacked into the furnace in a flat manner, but the existing heat exchangers enter the furnace in a state of carrying a plurality of hollow structures, so that the welding space is saved, more heat exchangers can be placed in the same batch, the utilization rate of the diffusion welding furnace is improved, the production efficiency is improved, and the production cost is reduced. In addition, the heat exchanger with the structure has certain variable elasticity on the inner wall of the flow channel and is a flow channel with a variable cross section to a certain extent, so that the heat exchanger can adapt to even the expansion of fluid in the flow channel caused by freezing, and the problem that the heat exchanger is damaged by expansion of the frozen fluid in the conventional heat exchanger is solved.
In a preferred embodiment, based on the above embodiment, as shown in fig. 1 to 4, a central portion 7 is provided in the middle region of the second surface, and a second coated portion 6 is further provided on the second surface, the second coated portion 6 being formed by a region of the second surface excluding the central portion 7. A plurality of heat exchange units are stacked in the vertical direction; the second surfaces of two vertically adjacent heat exchange units are overlapped; the central parts 7 of two vertically adjacent heat exchange units are welded by diffusion welding.
The heat exchange units arranged in a row can be uniformly stretched after being welded once, and the heat exchanger comprising a plurality of heat exchange units is formed once, so that the heat exchanger is simpler to manufacture and has low cost. It should be noted that, in the present embodiment, the central portion 7 or the molded flow channel top wall 14 is not particularly limited to a wall surface having a certain area, and the main function is to form the inner liquid flow channel 11 by performing stretch molding, so that only the connection and fixation function is performed, and in particular, the flow channel top wall may have a linear or point-like connection structure, and does not necessarily have to form a planar structure. Or the cross section of the inner fluid flow channel 11 may have a hexagonal structure as shown or a rhombic structure.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 1 to 4, for two adjacent heat exchange units in the same row, the adjacent top wall 14 of the flow channel is attached to each other and hermetically welded, and the vertically adjacent inner liquid flow channels 11 are communicated with each other through the flow channel holes 1 formed in the top wall 14 of the flow channel. Because the runner top walls 14 of the two adjacent heat exchange units are welded in a sealing manner, the two heat exchange units can be conveniently communicated only by arranging the communicated runner holes 1 on the runner top walls 14, so that the related structure of the heat exchange units which need to be connected by a running pipe is simplified, the product structure is compact, and the manufacture is simpler. Further, flow channel holes 1 are provided at both ends of the inner flow channel 11. The runner plate subassembly of a plurality of heat transfer units that arrange in line like this plugs up two runner holes 1 of the oblique other side in outermost side after stretching, for example runner hole 1 of preceding top and back below, alright make the liquid of treating the heat transfer get into the heat exchanger by runner hole 1 of preceding below, later flow equally through runner hole 1 between each layer to evenly flow from each heat transfer unit and carry out the heat transfer, later assemble the runner hole 1 outflow of back top again. Compared with the mode that the inner liquid flows in the heat exchange unit layer by layer in a snake-shaped trend, the mode can enhance the heat exchange effect especially under the condition that the outer liquid and the inner liquid of the heat exchanger are in counter flow, namely the flow directions of the outer liquid and the inner liquid are opposite.
Based on the above embodiment, in a preferred embodiment, as shown in fig. 1 to 4, the skirt region 12 includes two skirt body portions 4 and skirt end portions 5 connected to both ends of the skirt body portions 4, the two skirt body portions 4 are parallel to each other, and the skirt end portions 5 are in an angular shape or an arc shape.
Since the skirt region 12 or skirt 2 before shaping can usually be considered as the outermost part of the flow field plate, its outer contour substantially represents the shape of the entire flow field plate. Under the condition that the two skirt body parts 4 are parallel to each other and the skirt end parts 5 are in an angle shape or an arc shape, when the welded runner plate assembly is stretched, the two parallel skirt body parts 4 are close to each other, and meanwhile, the joint ends at the two sides of the angle-shaped or arc-shaped skirt end part 5 are folded inwards to form a sharper angle shape or a flattened arc shape, and finally a sloping runner side wall 13 is formed.
Based on the above embodiment, in another embodiment, as shown in fig. 8 to 10, a plurality of heat exchange units are connected in sequence along the horizontal direction, and horizontally adjacent heat exchange units are connected through the skirt edge 2, that is, the formed skirt edge region 12. The heat exchange units arranged in rows horizontally can increase the heat exchange efficiency of the device.
Based on the above embodiment, in another preferred embodiment, as shown in fig. 8 to 10, the flow channel plates of two horizontally adjacent heat exchange units are integrally formed by the skirt body parts 4 being close to each other. The structure ensures that the skirt edge end part 5 does not need to be connected, so that a proper shape beneficial to plastic deformation can be selected, and finally the tensile force required by the forming process is reduced; the flow passage plates which are integrally formed side by side have the advantages of simplified working procedures and simple manufacture, and are beneficial to reducing the product cost.
On the basis of the above embodiment, in a preferred embodiment, the heat exchange units are arranged in rows and columns in an array structure, the adjacent channel side walls 13 and skirt areas 12 of four adjacent heat exchange units jointly enclose the outer liquid channel 15, and the end of the outer liquid channel 15 is in an open structure.
The heat exchange units arranged in rows and arrays facilitate efficient heat exchange between the two liquids, and in use, as shown in fig. 10, the first fluid shown in solid lines flows from the outside of the heat sink, and a portion of the first fluid also passes through the external fluid flow channel 15 from the open opening. And the second liquid, shown in phantom, flows in reverse from the inner flow channel 11 and eventually converges from the flow channel orifice 1 to the desired conduit. Therefore, the heat exchange efficiency of the device is very high under the condition that the heat is exchanged in a large-area countercurrent way by the two liquids. And the heat exchanger with the structure can be formed by one-time welding and one-time stretching, and has simple and convenient manufacture and low cost.
The method for manufacturing the heat exchanger particularly includes the following steps in addition to the manufacturing steps described above:
in step S1, in preparing the runner plate, a plurality of runner plates arranged side by side are integrally molded, and a plurality of runner plates having the same number of side by side are prepared.
In step S2, as shown in fig. 5, on the second surface of the flow field plate, the respective central portions 7 and the second coated portions 6 are divided by the number of side-by-side, and the adjacent second coated portions 6 are connected to form a common region.
In step S3, as shown in fig. 6, on the first surface of the flow field plate, the respective skirts 2 and the first coated portions 3 are divided in a side-by-side number, and the adjacent skirts 2 are connected to form a common region.
In step S4, when the first stacking method is adopted, the second surfaces of the first plates 9 and the second surfaces of the second plates 10 in different pairs are opposite to each other, and the two plates are stacked together, so that the central portions 7 of the two plates are aligned and attached, and the stacking method can be referred to fig. 7.
In order to prevent the overlapped runner plates from being deviated and displaced during the feeding process, it is preferable that positioning holes 8 are provided in the skirt 2 of the runner plate, as shown in fig. 5 to 7, so that the plate members are positioned by the positioning posts during the overlapping process and kept positioned during the feeding process, thereby reducing the manufacturing deviation and the defective rate.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A heat exchanger, comprising:
the heat exchange unit comprises a pair of runner plates, the runner plates are provided with a first surface and a second surface, and the first surface and the second surface are oppositely arranged;
the first surface is provided with a skirt edge (2) and a first coating part (3), the skirt edge (2) is arranged on the periphery of the edge of the first surface, and the first coating part (3) is formed by surrounding the skirt edge (2); the first coating portion (3) is adapted to coat a solder-stop agent;
the pair of flow channel plates are attached, and the first surfaces of the pair of flow channel plates are arranged oppositely; welding the skirts (2) of the pair of runner plates by diffusion welding; and under the action of external force, the two second surfaces are stretched towards opposite directions, so that an internal liquid flow channel (11) is formed between the two flow channel plates.
2. The heat exchanger according to claim 1, characterized in that the intermediate area of the second face is provided with a central portion (7), the second face being further provided with a second coating (6), the second coating (6) being constituted by an area of the second face other than the central portion (7);
a plurality of heat exchange units are stacked in the vertical direction; the second surfaces of two vertically adjacent heat exchange units are overlapped; the central parts (7) of two vertically adjacent heat exchange units are welded through diffusion welding.
3. The heat exchanger according to claim 2, characterized in that a plurality of the heat exchange units are connected in sequence along the horizontal direction, and horizontally adjacent heat exchange units are connected through the skirt (2).
4. A heat exchanger according to claim 2 or 3, characterised in that after the inner liquid flow channel (11) has been formed between two of said flow channel plates, the opposite skirts (2) are welded to form skirt regions (12), said central portion (7) forming a channel top wall (14), and said second coated portions (6) forming channel side walls (13), said channel side walls (13) being bevelled between the outer edge of the channel top wall (14) and the inner edge of the skirt regions (12).
5. The heat exchanger according to claim 4, characterized in that the flow channel top wall (14) is provided with flow channel holes (1), and the vertically adjacent inner liquid flow channels (11) are communicated through the flow channel holes (1); flow passage holes (1) are arranged at both ends of the inner liquid flow passage (11).
6. The heat exchanger according to claim 4, characterized in that the skirt section (12) comprises two skirt body portions (4) and skirt end portions (5) connected to both ends of the skirt body portions (4), the two skirt body portions (4) being parallel to each other, the skirt end portions (5) being angled or curved.
7. The heat exchanger according to claim 6, characterized in that the flow channel plates of two horizontally adjacent heat exchange units are integrally formed by adjacent skirt body portions (4).
8. The heat exchanger according to claim 7, wherein the heat exchange units are arranged in rows and columns in an array structure, adjacent flow channel side walls (13) and skirt edge regions (12) of four adjacent heat exchange units jointly enclose an outer liquid flow channel (15), and the end part of the outer liquid flow channel (15) is in an open structure.
9. A method of manufacturing a heat exchanger, comprising the steps of:
s1: preparing more than two flat-plate-shaped runner plates;
s2: dividing the second surface of the flow channel plate into a central part (7) and a second coating part (6), and coating the second coating part (6) with a solder-stop agent;
s3: dividing a skirt edge (2) and a first coating part (3) from the first surface of the flow channel plate, wherein the skirt edge (2) is positioned outside the flow channel plate and is in a continuous annular shape, the outline of the inner edge of the skirt edge (2) is larger than the outline of the central part (7), and a solder stopping agent is coated on the first coating part (3);
s4: one of the following two stacking modes is selected: the first method is to distribute the flow channel plates coated with the solder-stop agent in pairs, wherein one pair of flow channel plates comprises a first plate (9) and a second plate (10), the first surface of the first plate (9) and the first surface of the second plate (10) in the same pair are opposite to each other and are overlapped, and the skirts (2) of the two plates are aligned and attached; the second method is that a runner plate coated with the anti-soldering agent is used as a first plate (9), a runner plate not coated with the anti-soldering agent is used as a second plate (10), the first plate (9) and the second plate (10) are alternately stacked in pairs, and the second surface of the first plate (9) is in the same direction;
s5: welding the superposed runner plates by adopting diffusion welding; welding the areas of the adjacent runner plates which are not coated with the anti-welding agent together;
s6: and taking out the welded runner plate component, stretching the welded runner plate component through the central part (7) corresponding to the outermost runner plate, wherein the stretching direction is outward along the superposition direction of the runner plates, so that a runner side wall (13) with a slope surface is stretched between the adjacent central part (7) and the skirt edge (2), and the adjacent central part (7), the skirt edge (2) and the runner side wall (13) jointly enclose an inner runner (11).
10. The method of manufacturing a heat exchanger according to claim 9,
in step S1, when preparing the flow field plates, a plurality of flow field plates arranged side by side are integrally formed, and a plurality of flow field plates having the same number of side by side are prepared;
in step S2, dividing the corresponding central part (7) and the second coating parts (6) according to the number of the parallel parts on the second surface of the flow channel plate, and connecting the adjacent second coating parts (6);
in step S3, dividing corresponding skirt edges (2) and first coating parts (3) on the first surface of the flow channel plate according to the number of the skirt edges in parallel, wherein the adjacent skirt edges (2) are connected;
in step S4, when the first stacking mode is adopted, the second surface of the first plate (9) and the second surface of the second plate (10) between different pairs are opposite, and the two plates are stacked, so that the central parts (7) of the two plates are aligned and attached.
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| CN202211169723.5A CN115265242A (en) | 2022-09-26 | 2022-09-26 | Heat exchanger and manufacturing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117190743A (en) * | 2023-11-08 | 2023-12-08 | 中国核动力研究设计院 | Adjustable radiator and use method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07189420A (en) * | 1993-12-27 | 1995-07-28 | Hitachi Ltd | Manufacture of brazed honeycomb panel |
| US20040188078A1 (en) * | 2003-03-24 | 2004-09-30 | Wu Alan Ka-Ming | Lateral plate surface cooled heat exchanger |
| US20070245560A1 (en) * | 2006-03-30 | 2007-10-25 | Xenesys Inc. | Method for manufacturing a heat exchanger |
| JP2008036650A (en) * | 2006-08-02 | 2008-02-21 | Denso Corp | Method of manufacturing heat exchanger |
| CN101634381A (en) * | 2008-12-29 | 2010-01-27 | 北京智创联合科技有限公司 | Diffusion welding structure corrugated pipe |
| CN206113727U (en) * | 2016-08-26 | 2017-04-19 | 天津博泰换热设备有限公司 | Circular all -welded formula plate heat exchanger |
| CN206222984U (en) * | 2016-05-27 | 2017-06-06 | 南阳天泰建设工程有限公司 | A kind of broad passage plate heat exchanger |
| EP3447432A1 (en) * | 2017-08-23 | 2019-02-27 | Commissariat à l'énergie atomique et aux énergies alternatives | Heat exchange plate member having microchannels comprising a plate-edge assembly element |
| CN209783356U (en) * | 2019-03-06 | 2019-12-13 | 上海板换机械设备有限公司 | Channel cross section inequality heat exchange element and heat exchange core |
| EP3759323A1 (en) * | 2018-02-28 | 2021-01-06 | UFI Filters S.p.A. | Oil temperature control assembly |
| CN216694598U (en) * | 2021-12-14 | 2022-06-07 | 扬州派斯特换热设备有限公司 | Plate heat exchanger for pharmaceutical factory |
| CN115052703A (en) * | 2020-02-07 | 2022-09-13 | 马勒国际有限公司 | Mesh for use during brazing of heat exchanger and method of brazing heat exchanger |
-
2022
- 2022-09-26 CN CN202211169723.5A patent/CN115265242A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07189420A (en) * | 1993-12-27 | 1995-07-28 | Hitachi Ltd | Manufacture of brazed honeycomb panel |
| US20040188078A1 (en) * | 2003-03-24 | 2004-09-30 | Wu Alan Ka-Ming | Lateral plate surface cooled heat exchanger |
| US20070245560A1 (en) * | 2006-03-30 | 2007-10-25 | Xenesys Inc. | Method for manufacturing a heat exchanger |
| JP2008036650A (en) * | 2006-08-02 | 2008-02-21 | Denso Corp | Method of manufacturing heat exchanger |
| CN101634381A (en) * | 2008-12-29 | 2010-01-27 | 北京智创联合科技有限公司 | Diffusion welding structure corrugated pipe |
| CN206222984U (en) * | 2016-05-27 | 2017-06-06 | 南阳天泰建设工程有限公司 | A kind of broad passage plate heat exchanger |
| CN206113727U (en) * | 2016-08-26 | 2017-04-19 | 天津博泰换热设备有限公司 | Circular all -welded formula plate heat exchanger |
| EP3447432A1 (en) * | 2017-08-23 | 2019-02-27 | Commissariat à l'énergie atomique et aux énergies alternatives | Heat exchange plate member having microchannels comprising a plate-edge assembly element |
| EP3759323A1 (en) * | 2018-02-28 | 2021-01-06 | UFI Filters S.p.A. | Oil temperature control assembly |
| CN209783356U (en) * | 2019-03-06 | 2019-12-13 | 上海板换机械设备有限公司 | Channel cross section inequality heat exchange element and heat exchange core |
| CN115052703A (en) * | 2020-02-07 | 2022-09-13 | 马勒国际有限公司 | Mesh for use during brazing of heat exchanger and method of brazing heat exchanger |
| CN216694598U (en) * | 2021-12-14 | 2022-06-07 | 扬州派斯特换热设备有限公司 | Plate heat exchanger for pharmaceutical factory |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117190743A (en) * | 2023-11-08 | 2023-12-08 | 中国核动力研究设计院 | Adjustable radiator and use method thereof |
| CN117190743B (en) * | 2023-11-08 | 2024-01-23 | 中国核动力研究设计院 | Adjustable radiator and use method thereof |
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