CN216645024U - Aluminum brazing plate type heat exchanger - Google Patents

Aluminum brazing plate type heat exchanger Download PDF

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Publication number
CN216645024U
CN216645024U CN202220019954.7U CN202220019954U CN216645024U CN 216645024 U CN216645024 U CN 216645024U CN 202220019954 U CN202220019954 U CN 202220019954U CN 216645024 U CN216645024 U CN 216645024U
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medium flow
plate
edge
core plate
heat exchanger
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陈朱应
李恺锋
杨鑫宇
陆珏婵
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Guizhou Yonghong Heat Transfer & Cooling Technology Co ltd
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Guizhou Yonghong Heat Transfer & Cooling Technology Co ltd
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Abstract

The utility model provides an aluminum brazing plate type heat exchanger which comprises an upper cover plate, a core plate, fins, a lower cover plate, a nozzle, a mounting seat and the like, wherein the upper cover plate, the core plate, the fins and the lower cover plate are all made of aluminum or aluminum alloy. The upper cover plate is arranged on the uppermost layer of the plate heat exchanger, the lower cover plate is arranged on the bottommost layer of the plate heat exchanger, a certain number of core plates or fins are arranged between the upper cover plate and the lower cover plate according to actual needs, a plurality of core plates are stacked to form cold edge medium cavities, hot edge medium cavities and middle cavities which are alternately distributed in space through the flanging structures and the annular bulges, and the middle cavities are communicated with the atmospheric environment. The heat exchanger has the advantages of light weight, compact structure, high heat exchange efficiency and high reliability, and is easy to find when the heat exchanger has leakage faults.

Description

Aluminum brazing plate type heat exchanger
Technical Field
The utility model belongs to the technical field of heat exchangers, and particularly relates to an aluminum brazing plate type heat exchanger.
Background
As a high-efficiency heat exchanger, the plate heat exchanger has the advantages of high heat exchange efficiency, compact structure, small occupied area and the like, and is widely applied to the field of heat exchange of fluid media such as liquid-liquid, liquid-vapor and the like.
The plate heat exchanger is mainly of two types, namely a detachable type and a brazing type, and the common material is 304 or 316L stainless steel, so that the weight is heavier and the price is higher. The plate heat exchanger made of aluminum alloy is less, and is only applied to a small amount in the automobile industry at present, but the heat exchanger is smaller in size. In the fields of engineering machinery, wind power, special equipment and the like, the heat exchange quantity is large, the working condition is severe, higher requirements are put on the plate heat exchanger, and the plate heat exchanger is required to be high in heat exchange efficiency, compact in structure, higher in reliability, light in weight and low in price. Compared with common stainless steel, the aluminum alloy has the advantages of high heat conductivity coefficient, low density, low price and the like. Therefore, an aluminum brazing plate type brazing plate heat exchanger structure needs to be designed.
Disclosure of Invention
The utility model aims to provide an aluminum brazing plate type heat exchanger which is light in weight, compact in structure, high in heat exchange efficiency and high in reliability and is easy to find when a leakage fault occurs in the heat exchanger.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an aluminum brazing plate type heat exchanger comprises a base plate,
the upper cover plate is provided with a hot edge medium inlet, a hot edge medium outlet, a cold edge medium inlet and a cold edge medium outlet;
the lower cover plate is connected with a mounting seat;
the core plate is positioned between the upper cover plate and the lower cover plate, the core plate is provided with four medium flow holes which penetrate through the upper surface and the lower surface of the core plate, are not communicated with each other and are distributed at the vertex positions of the quadrangle, annular bulges are arranged along the edges of the medium flow holes and comprise first annular bulges and second annular bulges, the bulge height of the first annular bulges is greater than that of the second annular bulges, the bulge directions of the annular bulges positioned at the two vertexes on the diagonal line of the quadrangle are opposite to the bulge direction of the upper surface of the core plate, the minimum outer diameter of the first annular bulges is smaller than the minimum inner diameter of the second annular bulges, and the minimum outer diameters of the first annular bulges and the minimum inner diameters of the second annular bulges are both smaller than the hole diameters of the corresponding medium flow holes;
two adjacent core plates are stacked in a manner that the upper surfaces correspond to the upper surfaces or the lower surfaces correspond to the lower surfaces, and the first annular bulge of one core plate is inserted into the second annular bulge of the other core plate;
the core plate is provided with a first surface and a second surface, the first surface is positioned above the upper surface of the core plate, the second surface is positioned below the lower surface of the core plate, and the core plate is overlapped at a joint position comprising the first surface and the second surface;
the first medium flow channel is mainly formed by two lower surfaces of two adjacent and overlapped core plates, second surfaces of two flanges and outer surfaces of two second annular bulges;
the second medium flow channel mainly comprises the inner surfaces of two first annular bulges of two adjacent and overlapped core plates, one end of the second medium flow channel is a hot edge medium inlet, a hot edge medium outlet, a cold edge medium inlet or a cold edge medium outlet, and the other end of the second medium flow channel is a mounting seat;
the middle cavity mainly comprises two upper surfaces of two adjacent and overlapped core plates, the outer surfaces of two first annular bulges, the inner surfaces of two second annular bulges and the first surfaces of two flanges;
the first medium flow channels and the middle cavities are alternately distributed in the core plate according to the sequence of the first medium flow channels, the middle cavities, the first medium flow channels, the middle cavities … …, the first medium flow channels and the middle cavities, and the first medium flow channels on two sides of the middle cavities are respectively cold-edge medium flow channels and hot-edge medium flow channels;
the second medium flow channel comprises a cold-edge second medium flow channel and a hot-edge second medium flow channel, the cold-edge second medium flow channel is communicated with the cold-edge medium flow channel, and the hot-edge second medium flow channel is communicated with the hot-edge medium flow channel;
the overflow port is a notch arranged on the flanging, and the overflow port is communicated with the middle cavity.
As an option, the aluminum brazed plate heat exchanger further comprises a fin or an aluminum block, the fin is located in the first medium flow channel, an opening corresponding to the medium flow hole in the core plate is formed in the fin, and the aluminum block is located in the middle cavity.
Alternatively, the fins are serrated fins.
Alternatively, the upper and lower surfaces of the core plate are smooth flat surfaces.
Alternatively, the flanges are broken line segments, the broken line segment above the upper surface of the core plate forms the first surface, and the broken line segment below the lower surface of the core plate forms the second surface.
Alternatively, two overflow ports are formed in the flanging of each core plate, and the overflow ports are located at two ends of the core plate in the length direction and are communicated with the atmospheric environment.
Alternatively, a plurality of the core plates are stacked and brazed to form a whole, and the brazing surfaces include a first surface, a second surface, an end surface of the first annular projection and an end surface of the second annular projection.
Alternatively, the hot side medium inlet, the hot side medium outlet, the cold side medium inlet and the cold side medium outlet are connected with nozzles.
Alternatively, the upper cover plate and the lower cover plate have the same structure as the core plate but different thicknesses, the hot edge medium inlet, the hot edge medium outlet, the cold edge medium inlet and the cold edge medium outlet on the upper cover plate correspond to the four medium flow holes on the core plate, and the mounting seat is mounted at the medium flow holes on the lower cover plate.
Alternatively, the upper and lower surfaces of the core plate are covered with solder layers.
In the aluminum brazing plate type heat exchanger, the core plate is preferably a plate with a smooth surface, and is different from the corrugated plate structure in the existing plate type heat exchanger.
In the aluminum brazing plate type heat exchanger, the middle cavity structure can be used for observing the leakage situation, and the overflow port on the middle cavity is used for discharging the leakage.
Compared with the prior art, the aluminum brazing plate type heat exchanger adopts aluminum alloy materials, the aluminum brazing plate type heat exchanger is integrally brazed, fins are arranged in the first medium flow channel as required, aluminum blocks are filled in the middle cavity as required, and the middle cavity is arranged between the cold edge medium cavity and the hot edge medium cavity. In addition, compared with a stainless steel plate type heat exchanger, the aluminum material is lighter in weight and lower in cost, and the requirements of engineering machinery, wind power, special equipment and other severe working conditions are met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a schematic view of a first media flow channel and a second media flow channel within a core plate of the present invention;
FIG. 4 is a partial view of the overflow of the present invention;
FIG. 5 is a schematic view of the top surface structure of the core plate of the present invention;
FIG. 6 is a schematic view of the lower surface structure of the core plate of the present invention;
FIG. 7 is a schematic view of the fin structure of the present invention;
in the figure: 1. hot edge medium inlet, hot edge medium outlet, 3 cold edge medium inlet, 4 cold edge medium outlet, 5 cold edge medium flow passage, 6 middle cavity, 7 hot edge medium flow passage, 8 mounting seat, 9 upper cover plate, 10 lower cover plate, 11 overflow port, 12 core plate, 13 fin, 14 flanging.
Detailed Description
The embodiments of the present invention will be further described with reference to the drawings attached to the specification, but the scope of the claims of the present invention is not limited to the contents listed in the examples.
As shown in fig. 1 to 7, the aluminum brazed plate heat exchanger includes an upper cover plate 9, a core plate 12, fins 13, a lower cover plate 10, a nozzle, a mounting seat 8, and the like, wherein the upper cover plate 9, the core plate 12, the fins 13, and the lower cover plate 10 are made of aluminum or aluminum alloy.
The upper cover plate 9 is arranged on the uppermost layer of the plate heat exchanger, the lower cover plate 10 is arranged on the bottommost layer of the plate heat exchanger, a certain number of core plates 12 or fins 13 are arranged between the upper cover plate 9 and the lower cover plate 10 according to actual requirements, a plurality of core plates 12 are stacked to form cold edge medium cavities and hot edge medium cavities which are alternately distributed in space, the upper cover plate 9, the core plates 12 or the fins 13 and the lower cover plate 10 form a whole body through integral brazing, finally, nozzles are welded at inlet and outlet parts of the cold edge medium and the hot edge medium of the upper cover plate 9, and a mounting seat 8 is welded at the bottom of the lower cover plate 10 to form the finished plate heat exchanger.
Preferably, the core 12 is a smooth surfaced light panel construction.
Preferably, according to the actual heat exchange requirement, the structure of the fins 13 can be flexibly arranged in the smooth surface area of the core plate 12 to meet the heat exchange requirement, the external dimension of the heat exchanger does not need to be changed, and the types and the cost of the die are effectively reduced.
Preferably, when the fins 13 are required to be arranged in the middle of the core plate 12, the fins 13 are zigzag fins.
Preferably, the core plate 12 has a general thickness of 0.6 to 1.2mm, and the core plate 12 is provided with solder layers on both sides.
Preferably, the thickness of the upper cover plate 9 and the lower cover plate 10 is generally thicker than that of the core plate 12, and is usually 2-3 mm, so that the requirement of the heat exchanger for bearing pressure is met, and meanwhile, the requirement of welding different mounting structures on the upper surface is also met.
Preferably, in order to improve the reliability of the plate heat exchanger, besides considering the product strength, a safety cavity structure is specially designed, namely a middle cavity 6 is formed between each cold edge medium cavity and each hot edge medium cavity, the cavity forms an overflow port 11 through notches at the edges of the left end and the right end of a core plate 12 and is communicated with the surrounding environment, and the structure can find the product leakage problem in time when the cold edge medium cavity or the hot edge medium cavity of the heat exchanger leaks, so that the condition that cold and hot media are mixed with each other is avoided.
Preferably, when the working pressure of the heat exchanger is higher, an aluminum block can be added in the middle cavity 6 as a support, and the fins 13 are added in the first medium flow channel to improve the pressure-bearing strength and the heat exchange effect of the heat exchanger.
All materials of the aluminum brazing plate type heat exchanger in the embodiment are aluminum alloy, and the aluminum brazing plate type heat exchanger is integrally formed through brazing.
The inner core plates 12 are stacked (stacked) in such a way that the upper surface and the upper surface (or the lower surface and the lower surface) are opposite to each other, so that a distribution structure in the form of a hot edge medium cavity, a middle cavity and a cold edge medium cavity is formed inside the inner core plates, and fin 13 structures can be arranged in the hot edge medium cavity and the cold edge medium cavity according to actual needs, so that the heat exchange requirement is met. The middle cavity 6 is communicated with the atmosphere through overflow ports 11 at the left end and the right end of the plate heat exchanger, when hot medium or cold medium leaks, the leaked medium can flow out of the middle cavity 6, leakage faults can be found in time through observation or necessary detection means, and the problem that the cold medium and the hot medium are mixed with each other due to leakage can be effectively solved through the middle cavity 6.
When the plate heat exchanger needs higher working pressure, the fins 13 (in the cold-side medium flow passage 5 and the hot-side medium flow passage 7) and the middle cavity 6 can be filled with aluminum blocks to serve as supports, and meanwhile, the heat exchange effect can be enhanced.
In order to realize the above functions, the core plate 12 is specially designed, as shown in fig. 3, 5 and 6, a ring of flanging 14 structure is arranged along the contour edge of the core plate 12, the flanging 14 is in a fold line shape and comprises a fold line below the lower surface of the core plate 12 and a fold line above the upper surface of the core plate 12, the surface of the fold line below the lower surface of the core plate 12 forms a second surface, and the surface of the fold line above the upper surface of the core plate 12 forms a first surface. The core plate 12 is provided with four medium flow holes, the four medium flow holes are distributed at four vertexes of a quadrangle, the hole edge of each medium flow hole is provided with an annular bulge with a conical surface, two annular bulges with higher heights are first annular bulges, two annular bulges with lower heights are second annular bulges, the two first annular bulges bulge protrude towards the lower surface direction of the core plate 12, the two second annular bulges protrude towards the upper surface direction of the core plate 12, and the diagonals of the quadrangle are respectively provided with the first annular bulge and the second annular bulge (namely, the vertexes of two ends of the same diagonal of the quadrangle are respectively the first annular bulge and the second annular bulge). The maximum outer diameter of the annular bulge is equal to the inner diameter of the medium flowing hole, the minimum outer diameter of the first annular bulge is smaller than the minimum inner diameter of the second annular bulge, and the diameter of the medium flowing hole corresponding to the first annular bulge is smaller than that of the medium flowing hole corresponding to the second annular bulge.
As shown in fig. 3, two lower surfaces of two adjacent and overlapped core plates 12, second surfaces of two flanges 14 and outer surfaces of two second annular bulges jointly form a first medium flow passage; the inner surfaces of two first annular bulges of two adjacent and overlapped core plates 12 form a second medium flow channel, one end of the second medium flow channel is a hot edge medium inlet 1, a hot edge medium outlet 2, a cold edge medium inlet 3 or a cold edge medium outlet 4, and the other end of the second medium flow channel is a mounting seat 8;
the two upper surfaces of the two adjacent and overlapped core plates 12, the outer surfaces of the two first annular bulges, the inner surfaces of the two second annular bulges and the first surfaces of the two flanges 14 form a middle cavity 6;
the first medium flow channel and the middle cavity 6 are alternately distributed in the core plate 12 from top to bottom in sequence of a first medium flow channel, the middle cavity 6, the first medium flow channel, the middle cavity 6 … …, the first medium flow channel and the middle cavity 6, and the first medium flow channels at two sides of the middle cavity 6 are respectively a cold edge medium flow channel 5 and a hot edge medium flow channel 7;
the second medium flow channel comprises a cold-edge second medium flow channel and a hot-edge second medium flow channel, a cold-edge medium cavity is formed after the cold-edge second medium flow channel is communicated with the cold-edge medium flow channel 5, a hot-edge medium cavity is formed after the hot-edge second medium flow channel is communicated with the hot-edge medium flow channel 7, a hot-edge medium inlet 1 and a hot-edge medium outlet 2 on the upper cover plate 9 are communicated with the hot-edge medium cavity, a cold-edge medium inlet 3 and a cold-edge medium outlet 4 are communicated with the cold-edge medium cavity, and a mounting seat 8 on the lower cover plate 10 forms a plugging structure. Fig. 2 is a schematic diagram of the flow of the cold-side medium and the hot-side medium in the cold-side medium cavity and the hot-side medium cavity.
The upper cover plate 9 and the lower cover plate 10 are also provided with a flanging 14, an annular bulge and a medium flow hole which are the same as those on the core plate 12, and a first medium flow passage, a second medium flow passage and the middle cavity 6 are formed by matching with the core plate 12. In addition, other structures and shapes are allowed on the upper cover plate 9 and the lower cover plate 10, but if the medium flow passage and the intermediate cavity 6 are formed between the upper cover plate 9 and the core plate 12, the thickness of the upper cover plate 9 and the lower cover plate 10 is larger than that of the core plate 12 in general in order to ensure the structural strength.
As shown in fig. 5 and 6, the first annular projection and the second annular projection are respectively projected toward the upper surface and the lower surface of the core plate 12, and the projection heights are different. As shown in fig. 3, when four core plates 12 are stacked in this order from top to bottom with the top surface facing the top surface (or the bottom surface facing the bottom surface), the flanges 14 of two adjacent core plates 12 have their first surfaces attached (only the horizontal portion of the first surface of the flange 14 in fig. 3) and their second surfaces attached (only the horizontal portion of the second surface of the flange 14 in fig. 3), the first annular projection of the first core plate 12 of the four adjacent core plates 12 is braze-joined to the first annular projection of the fourth core plate 12 (the first annular projection of the first core plate 12 is inserted into and through the second annular projection of the second core plate 12, the first annular projection of the fourth core plate 12 is inserted into and through the second annular projection of the third core plate 12), and the second annular projection of the second core plate 12 is braze-joined to the second annular projection of the third core plate 12, and the second medium flow channel formed by the first annular bulges on the first core plate 12 and the fourth core plate 12 passes through the second annular bulges on the second core plate 12 and the third core plate 12, so that the effective brazing area can be ensured when the core plates 12 are attached to each other. Since the medium flow hole aperture corresponding to the first annular projection is smaller than the medium flow hole aperture corresponding to the second annular projection, and the minimum outer diameter of the first annular projection is smaller than the minimum inner diameter of the second annular projection, the first annular projection can be inserted into and pass through the second annular projection.
As shown in fig. 4, 5 and 6, the core plates 12 have notches at both ends in the longitudinal direction thereof, so that the overflow ports 11 are formed when the core plates 12 are fitted to each other.
As shown in fig. 3, when the core plates 12 are stacked and attached to each other, the intermediate cavity 6 is formed, and the intermediate cavity 6 is communicated with the external atmosphere through the overflow port 11. When a plurality of middle cavities 6 are formed by overlapping a plurality of core plates 12, the plurality of middle cavities 6 can be mutually communicated and mutually isolated by adjusting the gap between the first annular bulge and the second annular bulge, when the plurality of middle cavities 6 are mutually isolated (the assembly gap when the first annular bulge is inserted into the second annular bulge is zero, the adjacent middle cavities 6 are not communicated, in addition, the brazing material layer on the surface of the core plate 12 can also block the gap during brazing), and even if the cold edge medium and the hot edge medium at the two sides of the middle cavities 6 leak, the cold edge medium and the hot edge medium cannot be mixed.
The common thickness of the core plate 12 is 0.6-1.2 mm, and the core plate 12 is provided with brazing filler metal layers on two sides, so that the brazing filler metal layers do not need to be additionally added during brazing.
In order to meet the heat dissipation requirement, a fin 13 structure can be arranged in the cold and hot medium cavity, and the heat transfer area is increased. The zigzag fins are optimized, and the staggered tooth structure of the zigzag fins can not only obviously enhance the disturbance to the fluid medium, but also ensure that the fluid can flow back and forth and left and right from the staggered teeth, thereby ensuring that the fluid in the whole medium cavity is uniformly distributed.
The above embodiments are not intended to limit the scope of the present invention, and any variations, modifications, or equivalent substitutions made on the technical solutions of the present invention should fall within the scope of the present invention.

Claims (10)

1. An aluminium brazing plate heat exchanger which is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the hot edge medium inlet (1), the hot edge medium outlet (2), the cold edge medium inlet (3) and the cold edge medium outlet (4) are arranged on the upper cover plate (9);
the lower cover plate (10), the upper connection of said lower cover plate (10) has mounting bases (8);
the core plate (12) is positioned between the upper cover plate (9) and the lower cover plate (10), the core plate (12) is provided with four medium flow holes which penetrate through the upper surface and the lower surface of the core plate (12), are not communicated with each other and are distributed at the vertex positions of the quadrangle, annular bulges are arranged along the edges of the medium flow holes and comprise first annular bulges and second annular bulges, the bulge height of the first annular bulges is greater than that of the second annular bulges, the bulge directions of the annular bulges positioned at the two vertexes on the diagonal line of the quadrangle, which are opposite to the bulge direction of the upper surface of the core plate (12), and the minimum outer diameter of the first annular bulges is smaller than the minimum inner diameter of the second annular bulges and both of the first annular bulges are smaller than the aperture of the corresponding medium flow holes;
two adjacent core plates (12) are stacked in a manner that the upper surfaces correspond to the upper surfaces or the lower surfaces correspond to the lower surfaces, and the first annular bulge of one core plate (12) is inserted into the second annular bulge of the other core plate (12);
the core plate (12) is provided with a flanging (14), the flanging (14) is arranged along the edge contour of the core plate (12), the flanging (14) comprises a first surface positioned above the upper surface of the core plate (12) and a second surface positioned below the lower surface of the core plate (12), and the overlapped joint position of the core plate (12) comprises the first surface and the second surface;
the first medium flow channel is mainly formed by two lower surfaces of two adjacent and overlapped core plates (12), second surfaces of two flanges (14) and outer surfaces of two second annular bulges;
the second medium flow channel mainly comprises the inner surfaces of two first annular bulges of two adjacent and overlapped core plates (12), one end of the second medium flow channel is a hot edge medium inlet (1), a hot edge medium outlet (2), a cold edge medium inlet (3) or a cold edge medium outlet (4), and the other end of the second medium flow channel is a mounting seat (8);
the middle cavity (6) mainly comprises two upper surfaces of two adjacent and overlapped core plates (12), the outer surfaces of two first annular bulges, the inner surfaces of two second annular bulges and the first surfaces of two flanges (14);
the first medium flow channels and the middle cavities (6) are alternately distributed in the core plate (12) according to the sequence of the first medium flow channels, the middle cavities (6), the first medium flow channels, the middle cavities (6) … …, the first medium flow channels and the middle cavities (6), and the first medium flow channels on two sides of the middle cavities (6) are respectively cold-edge medium flow channels (5) and hot-edge medium flow channels (7);
the second medium flow channel comprises a cold-edge second medium flow channel and a hot-edge second medium flow channel, the cold-edge second medium flow channel is communicated with the cold-edge medium flow channel (5), and the hot-edge second medium flow channel is communicated with the hot-edge medium flow channel (7);
the overflow port (11), overflow port (11) are the incision that sets up on turn-ups (14), and overflow port (11) and middle chamber (6) intercommunication.
2. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: the medium flow channel structure is characterized by further comprising a fin (13) or an aluminum block, wherein the fin (13) is located in the first medium flow channel, an opening corresponding to the medium flow hole in the core plate (12) is formed in the fin (13), and the aluminum block is located in the middle cavity (6).
3. An aluminum brazed plate heat exchanger according to claim 2, wherein: the fins (13) are saw-tooth fins.
4. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: the upper surface and the lower surface of the core plate (12) are smooth planes.
5. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: the flanging (14) is a broken line segment, the broken line segment positioned above the upper surface of the core plate (12) forms a first surface, and the broken line segment positioned below the lower surface of the core plate (12) forms a second surface.
6. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: two overflow ports (11) are arranged on the flanging (14) of each core plate (12), and the overflow ports (11) are positioned at the two ends of the core plate (12) in the length direction and are communicated with the atmospheric environment.
7. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: a plurality of core plates (12) are stacked and then brazed to form a whole, and the brazing surfaces comprise a first surface, a second surface, an end surface of a first annular bulge and an end surface of a second annular bulge.
8. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: the hot edge medium inlet (1), the hot edge medium outlet (2), the cold edge medium inlet (3) and the cold edge medium outlet (4) are connected with nozzles.
9. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: the structure of the upper cover plate (9) and the lower cover plate (10) is the same as that of the core plate (12) but the thickness of the upper cover plate is different from that of the core plate (12), the hot edge medium inlet (1), the hot edge medium outlet (2), the cold edge medium inlet (3) and the cold edge medium outlet (4) on the upper cover plate (9) correspond to four medium flow holes on the core plate (12), and the mounting seat (8) is mounted at the medium flow holes on the lower cover plate (10).
10. An aluminum brazed plate heat exchanger as recited in claim 1, wherein: the upper surface and the lower surface of the core plate (12) are covered with brazing filler metal layers.
CN202220019954.7U 2022-01-05 2022-01-05 Aluminum brazing plate type heat exchanger Active CN216645024U (en)

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CN202220019954.7U CN216645024U (en) 2022-01-05 2022-01-05 Aluminum brazing plate type heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220019954.7U CN216645024U (en) 2022-01-05 2022-01-05 Aluminum brazing plate type heat exchanger

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Publication Number Publication Date
CN216645024U true CN216645024U (en) 2022-05-31

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CN202220019954.7U Active CN216645024U (en) 2022-01-05 2022-01-05 Aluminum brazing plate type heat exchanger

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