CN114413660A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN114413660A CN114413660A CN202111524118.0A CN202111524118A CN114413660A CN 114413660 A CN114413660 A CN 114413660A CN 202111524118 A CN202111524118 A CN 202111524118A CN 114413660 A CN114413660 A CN 114413660A
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- channel layer
- temperature medium
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- 238000009413 insulation Methods 0.000 claims abstract description 82
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000005452 bending Methods 0.000 claims description 24
- 238000004891 communication Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 description 8
- 238000005192 partition Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
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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
- F28F9/005—Other auxiliary members within casings, e.g. internal filling means or sealing means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a heat exchanger, which comprises a plurality of heat insulation flow plates and a plurality of cold insulation flow plates, wherein adjacent heat insulation flow plates are arranged in a surrounding manner to form a heat flow circulating channel layer, adjacent cold insulation flow plates are arranged in a surrounding manner to form a cold flow circulating channel layer, the heat flow circulating channel layer and the cold flow circulating channel layer are arranged in a crossed and laminated manner, and the adjacent heat insulation flow plates are attached to the cold insulation flow plates, so that heat in a high-temperature medium can be transferred to a low-temperature medium through the heat insulation flow plates and the cold insulation flow plates; one or more containing cavities are arranged in a partial area between the heat insulation flow plate and the cold insulation flow plate and are used for containing leaked high-temperature medium and low-temperature medium. The edge regions of adjacent heat insulation flow plates are mutually attached to form a first annular sealing structure, and the edge regions of adjacent cold insulation flow plates are mutually attached to form a second annular sealing structure. The heat exchanger provided by the invention solves the problem that the high-temperature medium and the low-temperature medium are mixed directly due to the leakage of the high-temperature medium or the low-temperature medium.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to a heat exchanger.
Background
The heat exchanger may be applied to cooling of various fluid media, such as cooling of insulating oil of a transformer, cooling of engine oil, and cooling of insulating oil.
Generally, a heat exchanger is provided with a heat inlet flow collecting channel, a plurality of layers of heat flow circulating channel layers and a heat outlet flow collecting channel which are sequentially communicated, and the heat exchanger is further provided with a cold inlet flow collecting channel, a plurality of layers of cold flow circulating channel layers and a cold outlet flow collecting channel which are sequentially communicated, and in order to quickly radiate a high-temperature medium, the heat flow circulating channel layers and the cold flow circulating channel layers are arranged in a cross-stacking manner. In addition, in order to reduce the processing complexity of the heat exchanger, a partition plate is usually arranged between the hot flow circulation channel layer and the cold flow circulation channel layer, however, when a gap or damage occurs in the partition plate, a high-temperature medium is easily mixed with a low-temperature medium, and the mixing of the high-temperature medium and the low-temperature medium can generate toxic and harmful substances, even fire, explosion and other accidents. The prior art usually adopts the mode of thickening the division board or increasing the division board strengthening rib to prevent that the division board from damaging, and then reduces the probability that high temperature medium and low temperature medium take place to mix. 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, the mixing of the high temperature medium and the low temperature medium is directly caused, and further, irreversible results are generated.
Disclosure of Invention
In view of the above, there is a need for a heat exchanger to solve the problem that the high temperature medium and the low temperature medium are mixed directly due to the leakage of the high temperature medium or the low temperature medium.
The invention provides a heat exchanger, which is provided with a heat inlet flow collecting channel, a plurality of heat flow circulating channel layers and a heat outlet flow collecting channel which are sequentially communicated, and a cold inlet flow collecting channel, a plurality of cold flow circulating channel layers and a cold outlet flow collecting channel which are sequentially communicated, wherein the heat exchanger comprises a plurality of heat insulation flow plates and a plurality of cold insulation flow plates, adjacent heat insulation flow plates are arranged in a surrounding mode to form the heat flow circulating channel layer, adjacent cold insulation flow plates are arranged in a surrounding mode to form the cold flow circulating channel layer, the heat flow circulating channel layers and the cold flow circulating channel layers are arranged in a cross-laminated mode, and the adjacent heat insulation flow plates are attached to the cold insulation flow plates, so that heat in a high-temperature medium can be transferred to a low-temperature medium through the heat insulation flow plates and the cold insulation flow plates; one or more containing cavities are arranged in a partial area between the heat insulation flow plate and the cold insulation flow plate and are used for containing leaked high-temperature medium and low-temperature medium.
The edge regions of adjacent heat insulation flow plates are mutually attached to form a first annular sealing structure, and the edge regions of adjacent cold insulation flow plates are mutually attached to form a second annular sealing structure.
In an embodiment of the invention, the edges of the adjacent heat insulation flow plates are respectively bent toward opposite directions to form first bent portions, one ends of the oppositely arranged first bent portions, which are far away from the heat insulation flow plates, respectively extend toward directions far away from the heat flow circulation channel layer to form first attaching portions, and the oppositely arranged first attaching portions are tightly attached to form a first annular sealing structure.
In an embodiment of the invention, the first annular sealing structure is provided with first through holes, the first through holes sequentially penetrate through the oppositely arranged first attaching portions, and the first through holes are communicated with the accommodating cavities distributed at two sides of the thermal flow circulation channel layer.
In an embodiment of the present invention, the edges of the adjacent cold flow isolating plates are respectively bent toward opposite directions to form second bent portions, one end of the oppositely disposed second bent portion, which is away from the cold flow isolating plate, respectively extends toward a direction away from the cold flow circulating channel layer to form second attaching portions, and the oppositely disposed second attaching portions are tightly attached to form a second annular sealing structure.
In an embodiment of the invention, the second annular sealing structure is provided with second communicating holes, the second communicating holes sequentially penetrate through the oppositely arranged second attaching portions, and the second communicating holes are communicated with the accommodating cavities distributed on two sides of the cold flow circulating channel layer.
In an embodiment of the invention, a center line of the first communication hole and a center line of the second communication hole are located on the same straight line.
In an embodiment of the invention, one end of the first attaching portion, which is far away from the first bending portion, is bent toward the adjacent second attaching portion to form a third bending portion, the third bending portion extends toward the direction far away from the accommodating cavity to form a third attaching portion, one end of the second attaching portion, which is far away from the second bending portion, is bent toward the adjacent first attaching portion to form a fourth bending portion, the fourth bending portion extends toward the direction far away from the accommodating cavity to form a fourth attaching portion, and the third attaching portion and the fourth attaching portion are tightly attached to form a third annular sealing structure.
In an embodiment of the invention, one end of the third attaching portion, which is far away from the third bending portion, is bent toward the fourth attaching portion to form a first flange; and/or one end, far away from the fourth bending part, of the fourth attaching part is bent towards the third attaching part to form a second flanging.
In an embodiment of the present invention, the heat flow circulation channel layer is provided with a first fin, two ends of the first fin are respectively abutted to the adjacent heat insulation flow plates, and a cross section of the first fin is in a wave shape.
In an embodiment of the present invention, the cold flow circulating channel layer is provided with second fins, two ends of each second fin are respectively abutted against adjacent cold flow isolating plates, and the cross section of each second fin is in a wave shape.
According to the heat exchanger provided by the invention, the hot flow circulation channel layer is formed by surrounding adjacent heat insulation flow plates, and the cold flow circulation channel layer is formed by surrounding adjacent cold insulation flow plates, so that the hot flow circulation channel layer and the cold flow circulation channel layer are arranged independently, namely, the hot flow circulation channel layer and the cold flow circulation channel layer do not share the partition plate. When the cold insulation flow plate is damaged to cause leakage of the low-temperature medium in the cold flow circulation channel layer, the low-temperature medium cannot enter the hot flow circulation channel layer due to the insulation of the heat insulation flow plate. Similarly, when the heat insulation flow plate is damaged to cause leakage of the high-temperature medium in the hot-flow circulation channel layer, the high-temperature medium does not enter the cold-flow circulation channel layer due to the obstruction of the cold insulation flow plate.
In addition, according to the heat exchanger provided by the invention, the two partition plates of the heat flow isolating plate and the cold flow isolating plate are arranged on the hot flow circulating channel layer and the cold flow circulating channel layer, the edge areas of the adjacent heat isolating plates are mutually attached to form a first annular sealing structure, and the edge areas of the adjacent cold isolating plates are mutually attached to form a second annular sealing structure. Therefore, the heat exchanger provided by the invention does not need to be additionally welded with a sealing plate for sealing. Further, even if one of the heat shielding flow plate and the cold shielding flow plate leaks, the leaked high-temperature medium or low-temperature medium cannot enter the other of the hot flow circulation channel layer and the cold flow circulation channel layer.
As can be seen from the above, even if the high-temperature medium or the low-temperature medium leaks, the high-temperature medium and the low-temperature medium are not directly mixed. That is, the heat exchanger provided by the invention solves the problem that the high-temperature medium and the low-temperature medium are mixed directly due to the leakage of the high-temperature medium or the low-temperature medium.
Drawings
FIG. 1 is a cross-sectional view of a heat exchanger according to an embodiment of the present invention;
FIG. 2 is an exploded view of a heat exchanger according to yet another embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of a heat exchanger according to yet another embodiment of the present invention;
FIG. 4 is a partial schematic view of a cross-section of a heat exchanger according to yet another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a heat exchanger according to yet another embodiment of the present invention;
fig. 6 is a partial schematic view of a cross-sectional view of a heat exchanger according to still another embodiment of the present invention.
Reference numerals: 100. a heat inflow flow collecting channel; 110. a heat flow collecting channel; 120. a heat flow circulation channel layer; 200. a cold inlet flow and flow collecting channel; 210. a cold flow and flow collecting channel; 220. a cold flow circulating channel layer; 300. a heat insulation flow plate; 310. a first rib; 320. a first convex column; 400. a cold insulation flow plate; 410. a second rib; 420. a second convex column; 500. an accommodating chamber; 510. a first groove; 520. a second groove; 700. a first fin; 710. a second fin; 800. a first annular seal structure; 801. a first bent portion; 802. a first bonding portion; 803. a first communication hole; 804. a second annular seal structure; 805. a second bent portion; 806. a second bonding portion; 808. a third annular seal structure; 809. a third bent portion; 810. a third fitting section; 811. a fourth bent portion; 812. a fourth bonding portion; 813. a first flanging; 814. and a second flanging.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "cold flow flat", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "over," "above," and "on" a second feature may mean that the first feature is directly or obliquely above the second feature, or simply that the first feature has a higher cold flow level than the second feature. A first feature "under", "below" and "beneath" a second feature may be that the first feature is directly under or obliquely below the second feature, or simply means that the first feature has a lower level of cold flow than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. 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 flow," "up," "down," "left," "right," and the like are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The heat exchanger may be applied to cooling of various fluid media, such as cooling of insulating oil of a transformer, cooling of engine oil, and cooling of insulating oil.
Generally, a heat exchanger is provided with a heat inlet flow collecting channel, a plurality of layers of heat flow circulating channel layers and a heat outlet flow collecting channel which are sequentially communicated, and the heat exchanger is further provided with a cold inlet flow collecting channel, a plurality of layers of cold flow circulating channel layers and a cold outlet flow collecting channel which are sequentially communicated, and in order to quickly radiate a high-temperature medium, the heat flow circulating channel layers and the cold flow circulating channel layers are arranged in a cross-stacking manner. In addition, in order to reduce the processing complexity of the heat exchanger, a partition plate is usually arranged between the hot flow circulation channel layer and the cold flow circulation channel layer, however, when a gap or damage occurs in the partition plate, a high-temperature medium is easily mixed with a low-temperature medium, and the mixing of the high-temperature medium and the low-temperature medium can generate toxic and harmful substances, even fire, explosion and other accidents. The prior art usually adopts the mode of thickening the division board or increasing the division board strengthening rib to prevent that the division board from damaging, and then reduces the probability that high temperature medium and low temperature medium take place to mix. 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, the mixing of the high temperature medium and the low temperature medium is directly caused, and further, irreversible results are generated.
Referring to fig. 1, a problem that a high temperature medium and a low temperature medium are mixed directly due to leakage of the high temperature medium or the low temperature medium is solved. The invention provides a heat exchanger, which is provided with a heat inlet flow collecting channel 100, a plurality of layers of heat flow circulating channel layers 120 and a heat outlet flow collecting channel 110 which are sequentially communicated, and is also provided with a cold inlet flow collecting channel 200, a plurality of layers of cold flow circulating channel layers 220 and a cold outlet flow collecting channel 210 which are sequentially communicated, the heat exchanger comprises a plurality of heat insulation flow plates 300 and a plurality of cold insulation flow plates 400, adjacent heat insulation flow plates 300 are encircled to form the heat flow circulating channel layers 120, adjacent cold insulation flow plates 400 are encircled 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 arranged in a cross-laminated mode, and the adjacent heat insulation flow plates 300 are attached to the cold insulation flow plates 400, so that heat in a high-temperature medium can be transferred to a low-temperature medium through the heat insulation flow plates 300 and the cold insulation flow plates 400.
Since the hot-flow circulation channel layer 120 is surrounded by the adjacent heat shielding flow plates 300 and the cold-flow circulation channel layer 220 is surrounded by the adjacent cold shielding flow plates 400, the hot-flow circulation channel layer 120 and the cold-flow circulation channel layer 220 are disposed 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 flow insulation plate 400 is damaged to cause leakage of the low-temperature medium in the cold flow circulation channel layer 220, the low-temperature medium does not enter the hot flow circulation channel layer 120 due to the insulation of the heat flow insulation plate 300. Similarly, when the heat shielding flow plate 300 is damaged to cause the leakage of the high temperature medium in the hot fluid circulation channel layer 120, the high temperature medium does not enter the cold fluid circulation channel layer 220 due to the shielding of the heat shielding flow plate 400.
In addition, since only one layer of separation plate is arranged between the existing hot-flow circulation channel layer 120 and the existing cold-flow circulation channel layer 220, a sealing plate needs to be additionally welded at the edge area of the separation plate, so that the risk of leakage of the heat exchanger is increased. In the heat exchanger provided by the invention, the hot flow circulating channel layer 120 and the cold flow circulating channel layer 220 are provided with two layers of partition plates, namely the heat insulation flow plates 300 and the cold insulation flow plates 400, the edge areas of the adjacent heat insulation flow plates 300 are mutually attached to form a first annular sealing structure 800, and the edge areas of the adjacent cold insulation flow plates 400 are mutually attached to form a second annular sealing structure 804. Therefore, the heat exchanger provided by the invention does not need to be additionally welded with a sealing plate for sealing. Further, even if one of the heat shielding flow plate 300 or the cold shielding flow plate 400 leaks, the leaked high-temperature medium or low-temperature medium cannot enter the other hot fluid circulation channel layer 120 or cold fluid circulation channel layer 220.
As can be seen from the above, even if the high-temperature medium or the low-temperature medium leaks, the high-temperature medium and the low-temperature medium are not directly mixed. That is, the heat exchanger provided by the invention solves the problem that the high-temperature medium and the low-temperature medium are mixed directly due to the leakage of the high-temperature medium or the low-temperature medium.
Specifically, in an embodiment, as shown in fig. 1, the edges of the adjacent heat insulation flow plates 300 are respectively bent toward opposite directions to form first bent portions 801, one ends of the oppositely disposed first bent portions 801 far away from the heat insulation flow plates 300 respectively extend toward directions far away from the heat circulation channel layer 120 to form first attaching portions 802, and the oppositely disposed first attaching portions 802 are tightly attached to form the first annular sealing structure 800. It should be noted that the first attaching portion 802 has a certain width, and the larger the width of the first attaching portion 802 is, the better the sealing effect of the first annular sealing structure 800 is.
The leakage monitoring device is used for collecting the leaked high-temperature medium and low-temperature medium and carrying out centralized monitoring on the leaked high-temperature medium and low-temperature medium. In an embodiment, as shown in fig. 1, the first annular sealing structure 800 is provided with first through holes 803, the first through holes 803 sequentially penetrate through the oppositely disposed first attaching portions 802, and the first through holes 803 are distributed in the accommodating cavities 500 at two sides of the thermal flow circulation channel layer 120 in a communicating manner.
Specifically, in an embodiment, as shown in fig. 1, the edges of the adjacent cold flow isolating plates 400 are respectively bent toward opposite directions to form second bent portions 805, one ends of the oppositely disposed second bent portions 805, which are away from the cold flow isolating plates 400, respectively extend toward directions away from the cold flow circulating channel layer 220 to form second attaching portions 806, and the oppositely disposed second attaching portions 806 are closely attached to form the second annular sealing structure 804. It should be noted that the second attaching portion 806 has a certain width, and the larger the width of the second attaching portion 806 is, the better the sealing effect of the second annular sealing structure 804 is.
Similarly, the high-temperature medium and the low-temperature medium which leak are collected and monitored in a centralized manner. In an embodiment, the second annular sealing structure 804 is provided with second communication holes (not shown), the second communication holes sequentially penetrate through the second attaching portions 806, and the second communication holes are distributed in the accommodating cavities 500 on two sides of the cold flow circulating channel layer 220 in a communicating manner. In this way, the first communication hole 803 and the second communication hole are arranged in a crossed manner, and the first communication hole 803 and the second communication hole are communicated with all the accommodating cavities 500 of the heat exchanger, which is beneficial to the concentrated backflow of all the leaked high-temperature medium and low-temperature medium.
Further, in order to facilitate the concentrated backflow of the leaked high-temperature medium and low-temperature medium, in an embodiment, the center line of the first communication hole 803 and the center line of the second communication hole are located on the same straight line.
Further, in order to prevent the leaked high-temperature medium and low-temperature medium from overflowing, in an embodiment, as shown in fig. 1, one end of the first attaching portion 802 away from the first bending portion 801 is bent toward the adjacent second attaching portion 806 to form a third bending portion 809, the third bending portion 809 extends toward the direction away from the accommodating cavity 500 to form a third attaching portion 810, one end of the second attaching portion 806 away from the second bending portion 805 is bent toward the adjacent first attaching portion 802 to form a fourth bending portion 811, the fourth bending portion 811 extends toward the direction away from the accommodating cavity 500 to form a fourth attaching portion 812, and the third attaching portion 810 and the fourth attaching portion 812 are tightly attached to form a third annular sealing structure 808.
Further, in order to improve the structural strength of the third attaching portion 810 and the fourth attaching portion 812, in an embodiment, as shown in fig. 1, one end of the third attaching portion 810 away from the third bending portion 809 is bent toward the fourth attaching portion 812 to form a first flange 813, and one end of the fourth attaching portion 812 away from the fourth bending portion 811 is bent toward the third attaching portion 810 to form a second flange 814.
In order to reduce the processing degree of difficulty of holding tank, improve the volume rate of holding tank. In one embodiment, as shown in fig. 3, 4 and 6, one or more first grooves 510 are formed on one side of the heat and cold isolating flow plate 300 close to the heat and cold isolating flow plate 400, one or more second grooves 520 are formed on one side of the heat and cold isolating flow plate 400 close to the heat and cold isolating flow plate 300, and the first grooves 510 and the second grooves 520 surround to form the receiving cavity 500. It should be noted that the first groove 510 and the second groove 520 may be disposed oppositely and distributed in a mirror symmetry manner, or may be distributed asymmetrically, and when the first groove 510 and the second groove 520 are not distributed symmetrically, only the notch of the first groove 510 and the notch of the second groove 520 need to be communicated with each other.
Further, in order to reduce the difficulty of processing the first and second grooves 510 and 520 and to improve the structural strength of the cold and flow insulation plates 400 and 300. In one embodiment, as shown in fig. 2-4, the heat shielding plate 300 has a plurality of first ribs 310 extending toward the heat shielding plate 400, a first groove 510 is formed between adjacent first ribs 310, the heat shielding plate 400 has a plurality of second ribs 410 extending toward the heat shielding plate 300, a second groove 520 is formed between adjacent second ribs 410, and a side surface of the first rib 310 close to the heat shielding plate 400 is abutted to a side surface of the second rib 410 close to the heat shielding plate 300. The first rib 310 may be formed on the heat insulation flow plate 300 by press molding, and the second rib 410 may be formed on the cold insulation flow plate 400 by press molding. But not limited thereto, the heat insulation flow plate 300 may be formed by molding to form the first rib 310, and the cold insulation flow plate 400 may be formed by molding to form the second rib 410, which is not listed here.
Furthermore, in order to make the distribution of the first ribs 310 on the heat insulation flow plate 300 more symmetrical and beautiful, in one embodiment, as shown in fig. 2 to 4, the first ribs 310 distributed on the peripheral side of the heat inflow collecting channel 100 are distributed radially with the heat inflow collecting channel 100 as the center. In another embodiment, the first ribs 310 distributed around the heat flow collecting channel 110 are radially distributed around the heat flow collecting channel 110. Specifically, the first ribs 310 distributed on the periphery of the heat inlet and flow collecting channel 100 are elongated, and one end of each first rib 310 faces the center of the heat inlet and flow collecting channel 100, and the other end extends in a direction away from the center of the heat inlet and flow collecting channel 100.
More specifically, as shown in fig. 2 to 4, the first ribs 310 between the inlet and outlet heat collecting channels 100 and 110 are arranged at intervals in a V-shape. Thus, the surface area of the first rib 310 is advantageously enlarged, and the heat dissipation performance of the heat shield flow plate 300 is enhanced. But not limited thereto, the first ribs 310 between the inlet heat collecting channel 100 and the outlet heat collecting channel 110 may be arranged in an S-shaped interval, or the first ribs 310 between the inlet heat collecting channel 100 and the outlet heat collecting channel 110 may be arranged in a linear interval, which is not listed here.
To increase the structural strength of the thermal baffle 300, in one embodiment, the cross-sectional area of the first rib 310 gradually increases from the side near the cold flow barrier 400 to the side away from the cold flow barrier 400. Specifically, the first ribs 310 are tapered overall, and the tips of the tapered first ribs 310 face away from the heat shield flow plate 300.
In order to increase the heat transfer area of the first rib 310, in one embodiment, as shown in fig. 2 to 4, an end surface of the first rib 310 near the cold flow isolating plate 400 is a flat surface.
Similarly, in order to make the distribution of the second ribs 410 on the cold flow isolating plate 400 more symmetrical and beautiful, in one embodiment, as shown in fig. 2-4, the second ribs 410 distributed on the peripheral side of the cold flow collecting channel 200 are distributed radially with the cold flow collecting channel 200 as the center. In another embodiment, the second ribs 410 distributed around the cold flow collecting channel 210 are distributed radially around the cold flow collecting channel 210. Specifically, the second ribs 410 distributed on the periphery of the cold flow collecting channel 200 are elongated, and one end of the second rib 410 faces the center of the cold flow collecting channel 200, and the other end extends in a direction away from the center of the cold flow collecting channel 200.
More specifically, in one embodiment, as shown in fig. 2-4, the second ribs 410 between the cold inlet collecting channel 200 and the cold outlet collecting channel 210 are arranged in V-shaped intervals. Thus, the surface area of the second ribs 410 is increased, and the heat dissipation performance of the cold flow shield 400 is enhanced. Without limitation, the second ribs 410 between the cold flow collecting channels 200 and the cold flow collecting channels 210 may be arranged in an S-shaped interval, or the second ribs 410 between the cold flow collecting channels 200 and the cold flow collecting channels 210 may be arranged in a straight line interval, which is not listed here.
Likewise, in order to increase the structural strength of the heat shield flow plate 400, in another embodiment, the cross-sectional area of the second ribs 410 is gradually increased from a side close to the heat shield flow plate 300 to a side far from the heat shield flow plate 300. Specifically, the second ribs 410 are tapered overall, and the tips of the tapered second ribs 410 face away from the cold flow barrier 400.
Similarly, in order to increase the heat transfer area of the second ribs 410, in one embodiment, as shown in fig. 2 to 4, the end surface of the second ribs 410 near the heat insulation flow plate 300 is a flat surface.
In order to improve the heat dissipation uniformity of the heat and cold isolating flow plate 300 and the cold and cold isolating flow plate 400, in an embodiment, as shown in fig. 5-6, the heat and cold isolating flow plate 300 has a plurality of first protruding columns 320 extending toward the heat and cold isolating flow plate 400, the first protruding columns 320 are distributed in the first grooves 510 in a dotted manner, the cold and cold isolating flow plate 400 has a plurality of second protruding columns 420 extending toward the heat and cold isolating flow plate 300, the second protruding columns 420 are distributed in the second grooves 520 in a dotted manner, and one side end surface of the first protruding column 320 close to the heat and cold isolating flow plate 400 is attached to one side end surface of the second protruding column 420 close to the heat and cold isolating flow plate 300. Specifically, the first protruding pillar 320 is cylindrical, and the plurality of first protruding pillars 320 are uniformly distributed in the first groove 510. But not limited thereto, the first protrusion 320 may also be in a conical shape or a square column shape, which is not listed here.
In order to increase the structural strength of the thermal baffle 300, in an embodiment, the cross-sectional area of the first studs 320 gradually increases from a side close to the cold-proof flow plate 400 to a side far from the cold-proof flow plate 400.
In order to increase the heat transfer area of the first stud 320, in one embodiment, as shown in fig. 5-6, an end surface of the first stud 320 near the cold flow isolating plate 400 is a flat surface.
In an embodiment, the heat insulation flow plate 300 is formed by stamping to form the first protrusion 320. But not limited thereto, the heat insulation flow plate 300 may also be manufactured with the first protruding pillar 320 by casting, which is not listed here.
Likewise, in order to increase the structural strength of the heat insulation flow plate 400, in an embodiment, the cross-sectional area of the second studs 420 gradually increases from a side close to the heat insulation flow plate 300 to a side far from the heat insulation flow plate 300.
Similarly, in order to increase the heat transfer area of the second pillar 420, in an embodiment, as shown in fig. 5 to 6, an end surface of the second pillar 420 near the heat insulation flow plate 300 is a plane.
Similarly, in an embodiment, the cold baffle 400 is formed by stamping to form the second protrusion 420. But not limited thereto, the cold-isolating flow plate 400 may also be manufactured into the second convex pillar 420 by casting, which is not listed here.
In order to enhance the heat dissipation efficiency of the heat exchanger, in an embodiment, as shown in fig. 4 and 6, the heat flow circulation channel layer 120 is provided with a first fin 700, two ends of the first fin 700 respectively abut against the adjacent heat insulation flow plates 300, and the cross section of the first fin 700 is wavy. Since both ends of the first fin 700 are respectively abutted against the adjacent heat shielding flow plates 300, the first fin 700 disperses the pressure effect between the heat shielding flow plates 300, enhancing the structural strength of the heat exchanger.
Similarly, in order to enhance the heat dissipation efficiency of the heat exchanger, in an embodiment, as shown in fig. 4 and 6, the cold flow circulation channel layer 220 is provided with second fins 710, two ends of each second fin 710 respectively abut against adjacent cold flow isolating plates 400, and the cross section of each second fin 710 is wavy. Because the two ends of the second fin 710 respectively abut against the adjacent cold flow isolating plates 400, the second fin 710 disperses the pressure effect between the cold flow isolating plates 400, and the structural strength of the heat exchanger is enhanced.
The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. A heat exchanger is provided with a heat inlet flow collecting channel (100), a plurality of layers of heat flow circulating channel layers (120) and a heat outlet flow collecting channel (110) which are communicated in sequence, the heat exchanger is also provided with a cold flow inlet collecting channel (200), a multi-layer cold flow circulating channel layer (220) and a cold flow outlet collecting channel (210) which are communicated in sequence, the heat exchanger is characterized by comprising a plurality of heat insulation flow plates (300) and a plurality of cold insulation flow plates (400), wherein the heat circulation channel layer (120) is formed by enclosing adjacent heat insulation flow plates (300), the cold circulation channel layer (220) is formed by enclosing adjacent cold insulation flow plates (400), the hot fluid circulation channel layer (120) and the cold fluid circulation channel layer (220) are arranged in a cross-laminated mode, and the adjacent heat insulation flow plate (300) is attached to the cold insulation flow plate (400), so that heat in a high temperature medium can be transferred to a low temperature medium through the heat insulation flow plate (300) and the cold insulation flow plate (400); one or more accommodating cavities (500) are formed in a partial region between the heat insulation flow plate (300) and the cold insulation flow plate (400) and are used for accommodating leaked high-temperature medium and low-temperature medium;
the edge areas of the adjacent heat insulation flow plates (300) are mutually attached to form a first annular sealing structure (800), and the edge areas of the adjacent cold insulation flow plates (400) are mutually attached to form a second annular sealing structure (804).
2. The heat exchanger according to claim 1, wherein edges of adjacent heat insulation flow plates (300) are respectively bent towards opposite directions to form first bent portions (801), ends, away from the heat insulation flow plates (300), of the oppositely arranged first bent portions (801) respectively extend towards directions away from the heat flow circulation channel layer (120) to form first attaching portions (802), and the oppositely arranged first attaching portions (802) are closely attached to form the first annular sealing structure (800).
3. The heat exchanger according to claim 2, wherein the first annular sealing structure (800) is provided with first communication holes (803), the first communication holes (803) sequentially penetrate through the first attaching portions (802) which are oppositely arranged, and the first communication holes (803) are communicated and distributed in the accommodating cavities (500) on two sides of the heat flow circulation channel layer (120).
4. The heat exchanger according to claim 3, wherein the edges of the adjacent cold flow isolating plates (400) are respectively bent towards opposite directions to form second bent parts (805), one ends of the oppositely arranged second bent parts (805) far away from the cold flow isolating plates (400) respectively extend towards directions far away from the cold flow circulation channel layer (220) to form second attaching parts (806), and the oppositely arranged second attaching parts (806) are closely attached to form the second annular sealing structure (804).
5. The heat exchanger as claimed in claim 4, wherein the second annular sealing structure (804) is provided with second communication holes, the second communication holes sequentially penetrate through the second attaching portions (806) which are oppositely arranged, and the second communication holes are communicated and distributed in the accommodating cavities (500) at two sides of the cold flow circulating channel layer (220).
6. The heat exchanger according to claim 5, wherein a center line of the first communication hole (803) and a center line of the second communication hole are located on the same straight line.
7. The heat exchanger according to claim 4, wherein one end of the first attaching portion (802) away from the first bending portion (801) is bent towards the adjacent second attaching portion (806) to form a third bending portion (809), the third bending portion (809) extends towards the direction away from the accommodating cavity (500) to form a third attaching portion (810), one end of the second attaching portion (806) away from the second bending portion (805) is bent towards the adjacent first attaching portion (802) to form a fourth bending portion (811), the fourth bending portion (811) extends towards the direction away from the accommodating cavity (500) to form a fourth attaching portion (812), and the third attaching portion (810) and the fourth attaching portion (812) are tightly attached to form a third annular sealing structure (808).
8. The heat exchanger according to claim 7, wherein one end of the third fitting portion (810) away from the third bending portion (809) is bent towards the fourth fitting portion (812) to form a first flange (813); and/or one end, far away from the fourth bending part (811), of the fourth attaching part (812) is bent towards the third attaching part (810) to form a second flanging (814).
9. The heat exchanger according to claim 1, wherein the heat flow circulation channel layer (120) is provided with a first fin (700), two ends of the first fin (700) are respectively abutted against the adjacent heat insulation flow plates (300), and the cross section of the first fin (700) is wavy.
10. The heat exchanger as claimed in claim 1, wherein the cold flow circulation channel layer (220) is provided with second fins (710), two ends of each second fin (710) are respectively abutted against the adjacent cold flow separating plates (400), and the cross section of each second fin (710) is wavy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524118.0A CN114413660A (en) | 2021-12-14 | 2021-12-14 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524118.0A CN114413660A (en) | 2021-12-14 | 2021-12-14 | Heat exchanger |
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| CN114413660A true CN114413660A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111524118.0A Pending CN114413660A (en) | 2021-12-14 | 2021-12-14 | Heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108819A1 (en) * | 2021-12-14 | 2023-06-22 | 浙江银轮机械股份有限公司 | Heat exchanger |
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| JP2011196663A (en) * | 2010-03-24 | 2011-10-06 | Mitsubishi Electric Corp | Plate type heat exchanger |
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