WO2023108819A1

WO2023108819A1 - Heat exchanger

Info

Publication number: WO2023108819A1
Application number: PCT/CN2021/141994
Authority: WO
Inventors: 杨康顺; 曹宇强; 王杭军
Original assignee: 浙江银轮机械股份有限公司
Priority date: 2021-12-14
Filing date: 2021-12-28
Publication date: 2023-06-22
Also published as: CN114413659A

Abstract

A heat exchanger, comprising a heat flow inlet and collecting channel (100), a plurality of heat flow circulating channel layers (120), and a heat flow outlet and collecting channel (110) which are communicated in sequence, and a cold flow inlet and collecting channel (200), a plurality of cold flow circulating channel layers (220), and a cold flow outlet and collecting channel (210) which are communicated in sequence. The heat exchanger comprises a plurality of heat flow separation plates (300) and a plurality of cold flow separation plates (400); adjacent heat flow separation plates (300) come together to form the heat flow circulating channel layers (120); adjacent cold flow separation plates (400) come together to form the cold flow circulating channel layers (220); the heat flow circulating channel layers (120) and the cold flow circulating channel layers (220) are crossed and stacked; and the adjacent heat flow separation plates (300) are attached to the cold flow separation plates (400).

Description

Heat Exchanger

related application

This application claims the priority of the Chinese patent application with the application number 202111524114.2 and the title of the invention "Heat Exchanger" filed on December 14, 2021, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of heat exchange equipment, in particular to a heat exchanger.

Background technique

The heat exchanger can be applied to the cooling of various fluid media, for example, the cooling of the insulating oil of the transformer, the cooling of the engine oil, and the cooling of the insulating oil.

Usually, the heat exchanger is provided with successively connected heat flow collection channels, multi-layer heat flow circulation channel layers and heat flow collection channels, and the heat exchanger is also provided with sequentially connected cold flow collection channels, multi-layer cold flow For the flow circulation channel layer and the cold flow collection channel, in order to quickly dissipate heat from the high temperature and high temperature medium, the heat flow circulation channel layer and the cold flow circulation channel layer are arranged cross-stacked. Moreover, in order to reduce the processing complexity of the heat exchanger, there is usually a partition plate between the hot flow circulation channel layer and the cold flow circulation channel layer. However, when there is a gap or damage to the partition plate, the high temperature medium is likely to interact with the low temperature medium. Mixing, the mixing of high-temperature medium and low-temperature medium will produce toxic and harmful substances, and even accidents such as fire and explosion will occur. The existing technology usually adopts the method of thickening the partition plate or increasing the reinforcement rib of the partition plate to prevent the damage of the partition plate, thereby reducing the probability of mixing of high-temperature medium and low-temperature medium. However, the above method cannot completely avoid the mixing of the high-temperature medium and the low-temperature medium, and once the high-temperature medium or the low-temperature medium leaks, it will directly lead to the mixing of the high-temperature medium and the low-temperature medium, and then produce irreversible consequences.

Contents of the invention

In view of this, it is necessary to provide a heat exchanger to solve the problem that the leakage of high-temperature medium or low-temperature medium directly leads to the mixing of high-temperature medium and low-temperature medium.

The application provides a heat exchanger, the heat exchanger is provided with successively connected heat flow collection channels, multi-layer heat flow circulation channel layers and heat flow collection channels, and the heat exchanger is also provided with sequentially connected cold flow collection channels Flow channel, multi-layer cold flow circulation channel layer and cold flow collection channel, the heat exchanger includes multiple heat-insulating flow plates and multiple cold-insulating flow plates, adjacent heat-insulating flow plates are surrounded to form a heat flow circulation channel layer, Adjacent cold-insulation flow plates are arranged to form a cold flow circulation channel layer, and the heat flow circulation channel layer and the cold flow circulation channel layer are arranged cross-stacked, and the adjacent heat-insulation flow plates are attached to the cold-insulation flow plate, so that the heat flow in the high-temperature medium Heat can be transferred to the low-temperature medium through the heat shield and the cold shield.

In an embodiment of the present application, one or more accommodating cavities are provided in a part of the area between the heat-insulating flow plate and the cold-insulating flow plate for containing leaking high-temperature medium and low-temperature medium. Such an arrangement is beneficial for the heat exchanger to contain the leaked high-temperature medium and low-temperature medium, and prevent a large amount of high-temperature medium and low-temperature medium from overflowing.

In an embodiment of the present application, one or more first grooves are provided on the side of the heat insulating flow plate near the cold insulating flow plate, and one or more first grooves are provided on the side of the cold insulating flow plate near the heat insulating flow plate. The second groove is surrounded by the first groove and the second groove to form an accommodating cavity. Such setting is beneficial to reduce the processing difficulty of the accommodation groove and increase the volume ratio of the accommodation groove.

In an embodiment of the present application, the heat insulating flow plate is provided with a plurality of first ribs extending toward the cold insulating flow plate, first grooves are formed between adjacent first ribs, and the cold insulating flow plate is provided with multiple A second rib extending toward the heat insulating flow plate, a second groove is formed between adjacent second ribs, the first rib is close to the side end surface of the cold insulating flow plate and the second rib is close to the heat insulating flow plate One side of the end face is fitted. Such arrangement is beneficial to reduce the processing difficulty of the first groove and the second groove, and improve the structural strength of the cold-insulating flow plate and the heat-insulating flow plate.

In one embodiment of the present application, the first ribs distributed around the heat inlet flow collecting channel are radially distributed with the heat entering heat collecting channel as the center; and/or, the ribs distributed around the outlet heat flow collecting channel The first convex ribs are radially distributed with the heat outlet collecting channel as the center. Such an arrangement is beneficial for the distribution of the first ribs on the heat insulation flow plate to be more symmetrical and beautiful.

In an embodiment of the present application, the first ribs located between the incoming heat flow collecting channel and the outgoing heat flow collecting channel are arranged in a V shape at intervals. In this way, it is beneficial to expand the surface area of the first rib and enhance the heat dissipation performance of the heat insulating flow plate.

In one embodiment of the present application, the second ribs distributed around the cooling flow collecting channel are radially distributed with the cooling flow collecting channel as the center; and/or, distributed in the cooling flow collecting channel The second protruding ribs on the peripheral side are radially distributed with the cold flow collecting channel as the center. Such an arrangement is conducive to a more symmetrical and beautiful distribution of the second ribs on the cold insulation plate.

In an embodiment of the present application, the second ribs located between the incoming cold flow collecting channel and the outgoing cold flow collecting channel are arranged in a V shape at intervals. In this way, it is beneficial to expand the surface area of the second rib and enhance the heat dissipation performance of the cold insulation plate.

In one embodiment of the present application, the cross-sectional area of the first rib gradually increases from the side close to the cold-insulated flow plate to the side away from the cold-insulated flow plate; and/or, the cross-sectional area of the second rib The area gradually increases from the side close to the heat insulating flow plate to the side away from the heat insulating flow plate.

In an embodiment of the present application, the end surface of the first ridge close to the heat insulation flow plate is a plane; and/or, the end surface of the second ridge close to the heat insulation flow plate is a plane.

In an embodiment of the present application, the heat insulating flow plate is formed by stamping to form the first rib; and/or, the heat insulating flow plate is formed by stamping to form the second rib.

In an embodiment of the present application, the heat insulating flow plate is provided with a plurality of first protrusions extending toward the cold insulating flow plate, the first protrusions are distributed in the first groove in a dot shape, and the cold insulating flow plate is provided with A plurality of second protrusions extending toward the heat-insulating flow plate, the second protrusions are distributed in the second groove in a dot shape, and the end surface of the first protrusion close to the heat-insulating flow plate is close to the heat insulation of the second protrusion One side of the flow plate is attached to the end face. Such setting is beneficial to improve the heat dissipation uniformity of the heat-insulating flow plate and the cold-insulating flow plate.

In an embodiment of the present application, the cross-sectional area of the first protrusion gradually increases from the side close to the cold insulation flow plate to the side away from the cold insulation flow plate; and/or, the cross-sectional area of the second protrusion The area gradually increases from the side close to the heat insulating flow plate to the side away from the heat insulating flow plate.

In an embodiment of the present application, the end surface of the first protrusion close to the heat insulation flow plate is a plane; and/or, the end surface of the second protrusion close to the heat insulation flow plate is a plane.

In an embodiment of the present application, the heat insulating flow plate is formed by stamping to form the first protrusion; and/or, the heat insulating flow plate is formed by stamping to form the second protrusion.

In one embodiment of the present application, the heat flow circulation channel layer is provided with first fins, and the two ends of the first fins are respectively abutted against the adjacent heat insulation flow plate, and the cross section of the first fins is wavy; and /or, the cold flow circulation channel layer is provided with second fins, the two ends of the second fins abut against the adjacent cold flow isolation plates respectively, and the cross section of the second fins is wavy.

In the heat exchanger provided by this application, since the heat flow circulation channel layer is formed by surrounding the adjacent heat-insulating flow plates, and the cold flow circulation channel layer is formed by surrounding the adjacent heat-insulating flow plates, therefore, the heat flow circulation channel layer and the The cold flow circulation channel layers are arranged independently of each other, that is, the hot flow circulation channel layer and the cold flow circulation channel layer do not share a partition plate. When the cold insulation flow plate is damaged and the low temperature medium in the cold flow circulation channel layer leaks, the low temperature medium will not enter the hot flow circulation channel layer due to the barrier of the heat insulation flow plate. Similarly, when the heat insulation flow plate is damaged and the high temperature medium in the hot flow circulation channel layer leaks, the high temperature medium will not enter the cold flow circulation channel layer due to the barrier of the cold flow insulation plate. In summary, even if the high-temperature medium or the low-temperature medium leaks, it will not directly lead to the mixing of the high-temperature medium and the low-temperature medium.

Description of drawings

Fig. 1 is an exploded view 1 of a heat exchanger according to an embodiment of the present application.

FIG. 2 is a second exploded view of a heat exchanger according to an embodiment of the present application.

Fig. 3 is a partial sectional view of a heat exchanger according to an embodiment of the present application.

FIG. 4 is a partial schematic diagram of a cross section of a heat exchanger according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a heat exchanger according to another embodiment of the present application.

Fig. 6 is a partial schematic diagram of a cross section of a heat exchanger according to another embodiment of the present application.

Reference signs: 100, hot flow collecting channel; 110, hot flow collecting channel; 120, hot flow circulation channel layer; 200, cold flow collecting channel; 210, cold flow collecting channel; 220, cold flow circulation Channel layer; 300, heat insulating flow plate; 310, first convex rib; 320, first convex column; 400, cold insulating flow plate; 410, second convex rib; 420, second convex column; 500, accommodating cavity; 510, the first groove; 520, the second groove; 600, the first heat-insulating flow ring for incoming heat flow; 610, the first heat-insulating flow ring for outgoing heat flow; 700, the first fin; 710, the second fin.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the accompanying drawings in the embodiments of the application. Apparently, the described embodiments are only part of the embodiments of the application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Cold Leveling", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axis The orientation or positional relationship indicated in the direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, rather than indicating or implying No device or element must have a particular orientation, be constructed, and operate in a particular orientation, and thus should not be construed as limiting the application.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the present application, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or it just means that the cold level height of the first feature is higher than that of the second feature . "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the cold level of the first feature is smaller than that of the second feature.

It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "cold-leveled", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment .

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Figure 1-6, in order to solve the problem that the leakage of high-temperature medium or low-temperature medium directly leads to the mixing of high-temperature medium and low-temperature medium. The present application provides a heat exchanger including a plurality of heat insulating flow plates 300 and a plurality of cold insulating flow plates 400, adjacent heat insulating flow plates 300 are surrounded to form a heat flow circulation channel layer 120, and adjacent cold insulating flow plates 400 are surrounded by The cold flow circulation channel layer 220 is formed, and the adjacent heat insulating flow plate 300 is attached to the cold insulating flow plate 400, so that the heat in the high temperature medium can be transferred to the low temperature medium through the heat insulating flow plate 300 and the cold insulating flow plate 400 . Since the heat flow circulation channel layer 120 is formed by surrounding the adjacent heat insulating flow plate 300, and the cold flow circulation channel layer 220 is formed by surrounding the adjacent heat insulating flow plate 400, therefore, the heat flow circulation channel layer 120 and the cold flow circulation The channel layers 220 are arranged independently of each other, that is, the hot flow circulation channel layer 120 and the cold flow circulation channel layer 220 do not share a partition plate. When the cold insulation flow plate 400 is damaged and the low temperature medium in the cold flow circulation channel layer 220 leaks, the low temperature medium will not enter the heat flow circulation channel layer 120 due to the barrier of the heat insulation flow plate 300 . Similarly, when the heat insulation flow plate 300 is damaged and the high temperature medium in the hot flow circulation channel layer 120 leaks, the high temperature medium will not enter the cold flow circulation channel layer 220 due to the barrier of the cold flow insulation plate 400 . In summary, even if the high-temperature medium or the low-temperature medium leaks, it will not directly lead to the mixing of the high-temperature medium and the low-temperature medium. That is to say, the heat exchanger provided by the present application solves the problem that leakage of high-temperature medium or low-temperature medium directly leads to mixing of high-temperature medium and low-temperature medium.

In order to contain the leaked high-temperature medium and low-temperature medium, and prevent a large amount of high-temperature medium and low-temperature medium from overflowing. In one embodiment, as shown in FIG. 4 and FIG. 6 , one or more accommodating chambers 500 are provided in a part of the area between the heat-insulating flow plate 300 and the cold-insulating flow plate 400 for containing leaking high-temperature medium. and low temperature media. In this way, both the leaked high-temperature medium and the low-temperature medium can enter into the accommodation chamber 500 , which is beneficial for collecting the leaked high-temperature medium and low-temperature medium. It should be noted that, for the purpose of heat transfer, the adjacent heat insulating flow plate 300 is attached to the cold insulating flow plate 400. Therefore, the above-mentioned “partial area” refers to that the accommodating cavity 500 does not cover the heat insulating flow plate 300 and the cold insulating flow plate 400. In all areas between the flow plates 400 , the heat-insulating flow plate 300 and the cold-insulating flow plate 400 are at least partially bonded to ensure that heat in the high-temperature medium is transferred to the low-temperature medium through the heat-insulating flow plate 300 and the cold-insulating flow plate 400 . Moreover, when there are multiple accommodating cavities 500, the multiple accommodating cavities 500 may not communicate with each other, or may communicate with each other.

In order to reduce the processing difficulty of the accommodation groove, the volume ratio of the accommodation groove is increased. In one embodiment, as shown in FIG. 4 and FIG. 6 , one or more first grooves 510 are provided on the side of the heat insulation flow plate 300 close to the heat insulation flow plate 400 , and the heat insulation flow plate 400 is close to the heat insulation flow plate. One side of the board 300 is provided with one or more second grooves 520 , and the first groove 510 and the second groove 520 surround and form the receiving cavity 500 . It should be noted that the first grooves 510 and the second grooves 520 can be oppositely arranged and distributed symmetrically as a mirror, or asymmetrically distributed. When the first grooves 510 and the second grooves 520 are not symmetrically distributed , it only needs that the notch of the first groove 510 and the notch of the second groove 520 communicate with each other.

Further, in order to reduce the processing difficulty of the first groove 510 and the second groove 520 , and improve the structural strength of the cold insulation flow plate 400 and the heat insulation flow plate 300 . In one embodiment, as shown in FIG. 4 , the heat insulating flow plate 300 is provided with a plurality of first ribs 310 extending toward the cold insulating flow plate 400 , and first grooves 510 are formed between adjacent first ribs 310 , the cold insulation flow plate 400 is provided with a plurality of second ribs 410 extending toward the heat insulation flow plate 300, a second groove 520 is formed between adjacent second ribs 410, and the first ribs 310 are close to the cold insulation flow plate One side end surface of the 400 is attached to the side end surface of the second rib 410 close to the heat insulation flow plate 300 . Moreover, the heat insulating flow plate 300 can be formed with the first rib 310 by stamping, and the cold insulation plate 400 can be formed with the second rib 410 by stamping. But not limited thereto, the heat insulating flow plate 300 can also process the first rib 310 by casting, and the cold insulating flow plate 400 can also process the second rib 410 by casting, which are not mentioned here. enumerate.

Furthermore, in order to make the distribution of the first ribs 310 on the heat insulating flow plate 300 more symmetrical and beautiful, in one embodiment, as shown in FIG. 310 are radially distributed with the incoming heat flow collecting channel 100 as the center. In another embodiment, as shown in FIG. 1 , the first ribs 310 distributed around the heat outlet flow collecting channel 110 are radially distributed with the heat outlet flow collecting channel 110 as the center. Specifically, the first ribs 310 distributed around the side of the heat-inflow collecting channel 100 are elongated, and one end of the first ribs 310 faces toward the center of the heat-inflow collecting channel 100 , and the other end faces away from the heat-inflow collecting channel. Road 100 extends in the direction of the center.

More specifically, as shown in FIG. 1 , the first ribs 310 located between the incoming heat flow collecting channel 100 and the outgoing heat flow collecting channel 110 are arranged at intervals in a V shape. In this way, it is beneficial to expand the surface area of the first rib 310 and enhance the heat dissipation performance of the heat insulating flow plate 300 . But not limited thereto, the first ribs 310 located between the incoming heat flow collecting channel 100 and the outgoing heat flow collecting channel 110 can also be arranged at intervals in an S shape, or located between the incoming heat flow collecting channel 100 and the outgoing heat flow collecting channel The first ribs 310 between the tracks 110 may also be arranged in a straight line at intervals, which will not be listed here.

In order to increase the structural strength of the heat insulating flow plate 300, in one embodiment, as shown in FIG. side gradually increases. Specifically, the first rib 310 is tapered as a whole, and the tip of the tapered first rib 310 faces away from the heat insulation flow plate 300 .

In order to improve the heat transfer area of the first rib 310 , in one embodiment, as shown in FIG. 4 , the end surface of the first rib 310 close to the cold isolation plate 400 is a plane.

Similarly, in order to make the distribution of the second ribs 410 on the cold insulation plate 400 more symmetrical and beautiful, in one embodiment, as shown in FIG. 410 is radially distributed with the incoming cold flow collecting channel 200 as the center. In another embodiment, the second ribs 410 distributed around the cold outlet flow collecting channel 210 are radially distributed with the cold outlet collecting channel 210 as the center. Specifically, the second ribs 410 distributed around the cooling flow collecting channel 200 are elongated, and one end of the second ribs 410 faces toward the center of the cooling flow collecting channel 200 , and the other end faces away from the cooling flow. The direction of the center of the flow collecting channel 200 extends.

More specifically, in one embodiment, as shown in FIG. 1 , the second ribs 410 located between the incoming cold flow collecting channel 200 and the outgoing cold flow collecting channel 210 are arranged in a V shape at intervals. In this way, it is beneficial to expand the surface area of the second rib 410 and enhance the heat dissipation performance of the cold insulation plate 400 . But not limited thereto, the second ribs 410 located between the inlet cold flow collecting channel 200 and the outlet cold flow collecting channel 210 can also be arranged in an S shape at intervals, or located between the inlet cold flow collecting channel 200 and the outlet The second ribs 410 between the cold flow collecting channels 210 may also be arranged in a straight line at intervals, which will not be listed here.

Similarly, in order to increase the structural strength of the heat insulating flow plate 400, in another embodiment, as shown in FIG. One side of the heat flow plate 300 gradually increases. Specifically, the second rib 410 is tapered as a whole, and the tip of the tapered second rib 410 faces away from the cold isolation flow plate 400 .

Similarly, in order to increase the heat transfer area of the second rib 410 , in one embodiment, as shown in FIG. 4 , the end surface of the second rib 410 close to the heat insulating flow plate 300 is a plane.

In order to improve the heat dissipation uniformity of the heat insulation flow plate 300 and the cold insulation flow plate 400, in one embodiment, as shown in FIG. 5 and FIG. 6, the heat insulation flow plate 300 is provided with a plurality of The first protrusions 320 are distributed in the first groove 510 in a dot shape, and the cold insulation flow plate 400 is provided with a plurality of second protrusions 420 extending toward the heat insulation flow plate 300. The second protrusions 420 are distributed in the second groove 520 in a dot shape, and the end surface of the first protrusion 320 close to the cold insulation flow plate 400 is attached to the end surface of the second protrusion 420 close to the heat insulation flow plate 300 . Specifically, the first protrusions 320 are cylindrical, and a plurality of first protrusions 320 are evenly distributed in the first groove 510 . But not limited thereto, the first protrusion 320 may also be in the shape of a cone or a square column, which will not be listed here. It should be noted that the heat insulating flow plate 300 and the cold insulating flow plate 400 can also form contact in other forms besides the form of ribs and convex posts, for example, the heat insulating flow plate 300 and the cold insulating flow plate 400 can also form contact Contacts can be made in the form of large-area bosses or elongated ridges. Or it can also be that the heat-insulating flow plate 300 has ribs and bosses, and one side of the heat-insulating flow plate 400 is a plane, so that the assembly fault tolerance rate of the heat exchanger is improved. Alternatively, the heat insulating flow plate 400 may have ribs and bosses, while one side of the heat insulating flow plate 300 is flat, so that the assembly fault tolerance rate of the heat exchanger is improved.

In order to increase the structural strength of the heat insulating flow plate 300, in one embodiment, as shown in FIG. side gradually increases.

In order to improve the heat transfer area of the first protrusion 320 , in one embodiment, as shown in FIG. 6 , the end surface of the first protrusion 320 close to the cold insulation flow plate 400 is a plane.

In one embodiment, the heat insulating flow plate 300 is processed with the first boss 320 by stamping. But not limited thereto, the heat insulating flow plate 300 can also be cast to process the first boss 320 , which will not be listed here.

Similarly, in order to increase the structural strength of the heat insulating flow plate 400, in one embodiment, as shown in FIG. One side of the flow plate 300 gradually increases.

Likewise, in order to improve the heat transfer area of the second protrusion 420 , in one embodiment, as shown in FIG. 6 , the end surface of the second protrusion 420 close to the heat insulation flow plate 300 is a plane.

Likewise, in one embodiment, the second boss 420 is processed by stamping the cold-insulating flow plate 400 . But not limited thereto, the cold insulating plate 400 can also be processed into the second boss 420 by casting, which will not be listed here.

In one embodiment, as shown in FIG. 2 , the incoming heat flow collecting channel 100 passes through the cold flow circulation channel layer 220 . A first heat-inflow heat-insulating flow ring 600 is provided between the cold-insulation flow plates 400 , and the first heat-inflow heat-insulation flow ring 600 isolates the cold flow circulation channel layer 220 from the heat-inflow collecting channel 100 . Specifically, the two ends of the first incoming heat flow insulation flow ring 600 are respectively welded to the adjacent cold insulation flow plate 400, the welding connection strength is relatively high, and the welding process is mature, and the processing method is simpler.

Similarly, in one embodiment, as shown in FIG. 2 , the hot flow collecting channel 110 passes through the cold flow circulation channel layer 220, in order to prevent the high temperature medium in the hot flow collecting channel 110 from entering the cold flow circulation channel layer 220 , between adjacent cold-insulating flow plates 400 is provided a first heat-outlet heat-insulating flow ring 610 , and the first heat-outflow heat-insulating flow ring 610 isolates the cold-flow circulation channel layer 220 and the heat-outflow collecting channel 110 . Specifically, the two ends of the first heat-outflow heat-insulating flow ring 610 are respectively welded to the adjacent cold-insulation flow plate 400 , the welding connection strength is relatively high, and the welding process is mature, and the processing method is simpler.

In one embodiment, the incoming cold flow collection channel 200 passes through the heat flow circulation channel layer 120. In order to prevent the low-temperature medium entering the cold flow collection channel 200 from entering the heat flow circulation channel layer 120, the adjacent heat insulation flow plate 300 There is a first cold flow insulation flow ring (not shown in the figure) between them, and the first cold flow insulation flow ring isolates the heat flow circulation channel layer 120 and the cold flow collection channel 200 . Specifically, the two ends of the first inlet cold flow insulation flow ring are respectively welded to the adjacent heat insulation flow plate 300 , the welding connection strength is relatively high, and the welding process is mature, and the processing method is simpler.

Similarly, in one embodiment, the cold flow collecting channel 210 passes through the hot flow circulation channel layer 120. In order to prevent the low-temperature medium in the cold flow collecting channel 210 from entering the hot flow circulation channel layer 120, the adjacent thermal insulation flow Between the plates 300 is provided a first cold outlet flow insulation flow ring (not shown in the figure), and the first cold outlet flow insulation flow ring isolates the heat flow circulation channel layer 120 and the cold outlet flow collection channel 210 . Specifically, the two ends of the first cold flow insulation flow ring are respectively welded to the adjacent heat insulation flow plate 300 , the welding connection strength is relatively high, the welding process is mature, and the processing method is simpler.

In order to enhance the heat dissipation efficiency of the heat exchanger, in one embodiment, as shown in FIG. 2 , FIG. 4 and FIG. The cross-section of the first fin 700 is corrugated adjacent to the adjacent heat-insulating flow plate 300 . Since the two ends of the first fins 700 abut against the adjacent heat-insulating flow plates 300 respectively, the first fins 700 disperse the pressure between the heat-insulating flow plates 300 and enhance the structural strength of the heat exchanger.

Similarly, in order to enhance the heat dissipation efficiency of the heat exchanger, in one embodiment, as shown in FIG. 4 and FIG. The cross-section of the second fin 710 abutting against the adjacent cold-insulation flow plate 400 is wave-shaped. Since the two ends of the second fins 710 abut against the adjacent cold-insulating flow plates 400 respectively, the second fins 710 disperse the pressure between the cold-insulating flow plates 400 and enhance the structural strength of the heat exchanger.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation to the present application. As long as they are within the scope of the essence of the present application, appropriate changes are made to the above embodiments and changes all fall within the scope of protection claimed by the application.

Claims

A heat exchanger, which is provided with successively connected heat flow collection channels, multi-layer heat flow circulation channel layers and heat flow collection channels, and the heat exchanger is also provided with sequentially connected cold flow collection channels, multi-layer The cold flow circulation channel layer and the cold flow collection channel are characterized in that the heat exchanger includes a plurality of heat-insulating flow plates and a plurality of heat-insulating flow plates, and the adjacent heat-insulating flow plates are surrounded to form the The heat flow circulation channel layer is adjacent to the cold insulation flow plate to form the cold flow circulation channel layer, the heat flow circulation channel layer and the cold flow circulation channel layer are arranged in cross-stack, and adjacent to the heat insulation flow The plate is attached to the cold-insulated flow plate, so that the heat in the high-temperature medium can be transferred to the low-temperature medium through the heat-insulated flow plate and the cold-insulated flow plate.
The heat exchanger according to claim 1, characterized in that one or more accommodating cavities are provided in a part of the area between the heat insulating flow plate and the cold insulating flow plate to accommodate the high temperature leaking media and cryogenic media.
The heat exchanger according to claim 2, characterized in that, one or more first grooves are provided on the side of the heat insulation flow plate close to the cold insulation flow plate, and the side of the heat insulation flow plate close to the cold insulation flow plate One or more second grooves are provided on one side of the heat insulating flow plate, and the first groove and the second groove surround to form the accommodation cavity.
The heat exchanger according to claim 3, wherein the heat insulation flow plate is provided with a plurality of first ribs extending toward the cold insulation flow plate, and a plurality of first ribs are formed between adjacent first ribs. The first groove, the cold insulation flow plate is provided with a plurality of second ribs extending toward the heat insulation flow plate, and the second grooves are formed between adjacent second ribs, so The end surface of the first rib close to the cold insulation flow plate is attached to the end surface of the second rib close to the heat insulation flow plate.
The heat exchanger according to claim 4, characterized in that, the first ribs distributed on the peripheral side of the incoming heat flow collecting channel are radially distributed centering on the incoming heat flow collecting channel; and/ Or, the first ribs distributed on the peripheral side of the heat outlet flow collecting channel are radially distributed with the heat outlet flow collecting channel as the center.
The heat exchanger according to claim 4, characterized in that, the first ribs located between the heat-inflow collecting channel and the heat-outflow collecting channel are arranged at intervals in a V shape.
The heat exchanger according to claim 4, characterized in that, the second ribs distributed on the peripheral side of the cooling flow collecting channel are radially distributed with the cooling flow collecting channel as the center; And/or, the second ribs distributed on the peripheral side of the cold outlet flow collecting channel are radially distributed with the outlet cold flow collecting channel as the center.
The heat exchanger according to claim 4, characterized in that, the second ribs located between the incoming cold flow collecting channel and the outgoing cold flow collecting channel are arranged in a V shape at intervals.
The heat exchanger according to claim 4, wherein the cross-sectional area of the first rib gradually increases from the side close to the cold insulation flow plate to the side away from the cold insulation flow plate and/or, the cross-sectional area of the second rib gradually increases from a side close to the heat insulating flow plate to a side away from the heat insulating flow plate.
The heat exchanger according to claim 4, characterized in that, the end surface of the first rib close to the cold insulation flow plate is a plane; and/or, the second rib close to the heat insulation One end face of the flow plate is a plane.
The heat exchanger according to claim 4, characterized in that, the heat-insulating flow plate is formed by stamping the first rib; and/or, the heat-insulating flow plate is formed by stamping The second rib is machined.
The heat exchanger according to claim 3, wherein the heat insulation flow plate is provided with a plurality of first protrusions extending toward the cold insulation flow plate, and the first protrusions are distributed in dots on In the first groove, the cold insulation flow plate is provided with a plurality of second protrusions extending toward the heat insulation flow plate, and the second protrusions are distributed in the second groove in a dot shape The end surface of the first protruding column close to the heat insulating flow plate is attached to the end surface of the second protruding column close to the heat insulating flow plate.
The heat exchanger according to claim 12, wherein the cross-sectional area of the first boss gradually increases from a side close to the cold insulation flow plate to a side far away from the cold insulation flow plate and/or, the cross-sectional area of the second boss gradually increases from a side close to the heat insulation flow plate to a side away from the heat insulation flow plate.
The heat exchanger according to claim 12, characterized in that, the end surface of the first protrusion close to the cold insulation flow plate is a plane; and/or, the second protrusion close to the heat insulation One end face of the flow plate is a plane.
The heat exchanger according to claim 12, characterized in that, the heat insulating flow plate is formed by stamping to form the first boss; and/or, the heat insulating flow plate is formed by stamping The second protrusion is processed.
The heat exchanger according to claim 1, wherein the heat flow circulation channel layer is provided with first fins, and the two ends of the first fins respectively abut against the adjacent heat insulation flow plates, The cross-section of the first fins is wavy; and/or, the cold flow circulation channel layer is provided with second fins, and the two ends of the second fins are respectively abutted against the adjacent cold insulation The flow plate, the cross-section of the second fin is wavy.