Heat exchange plate and heat exchanger

Abstract

The utility model discloses a heat exchange plate and a heat exchanger, the heat exchange plate comprises a plate body, at least one surface of the plate body is convexly provided with a plurality of basic bulges; the turbulent flow structure is convexly arranged on at least one surface of the plate body, and the turbulent flow structure and the basic bulge are arranged in different areas on the surface of the plate body; in the turbulent flow structures and the basic protrusions which are arranged on the same surface of the plate body in a protruding mode, the distance between the top points or the top faces of the turbulent flow structures and the plate body is larger than the distance between the top points or the top faces of the basic protrusions and the plate body. According to the heat exchange plate, the surface heat exchange coefficient of the heat exchange plate is improved due to the arrangement of the basic protrusions, and the turbulent flow structures are arranged on the heat exchange surface and are higher than the basic protrusions on the heat exchange surface, so that when a cooling medium flows through the turbulent flow structures, secondary flow is generated and further thinned and damaged on a boundary layer, and the heat exchange efficiency is improved. Meanwhile, generation of backflow areas at wave crests and wave troughs in the basic protrusions is interfered, and flow resistance is prevented from being increased.

Description

Technical Field

[0001] The utility model relates to the technical field of machine units, in particular to a heat exchange plate and a heat exchanger. Background Art

[0002] Plate-type air heat exchangers usually use thin aluminum plates or other polymer plates as heat exchange plates, which are arranged in a staggered manner to form multiple rows of staggered heat exchange channels. Two air flows staggered through the heat exchange channels for indirect heat exchange. Since the heat exchange coefficient of this type of flat plate heat exchanger is small, the heat exchange efficiency can only be improved by increasing the air volume or increasing the volume of the heat exchanger.

[0003] In order to improve the heat transfer coefficient of the heat exchanger, corrugated plates are usually used instead of flat plates. In the process of realizing the present utility model, the inventors found that there are at least the following problems in the prior art: although the surface heat transfer coefficient of the heat exchange channel surrounded by the corrugated plates has been improved, the improvement is relatively limited, and a significant disadvantage of the corrugated channel is that there are recirculation zones at the crests and troughs of the corrugations, which will weaken the heat exchange and increase the flow resistance, affecting the heat exchange efficiency.

[0004] In summary, how to improve the surface heat transfer coefficient of the heat exchange plate without increasing the flow resistance is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the first object of the present invention is to provide a heat exchange plate, aiming to improve the surface heat transfer coefficient of the heat exchange plate without increasing the flow resistance.

[0006] The second object of the utility model is to provide a heat exchanger.

[0007] In order to achieve the above first purpose, the utility model provides the following solutions:

[0008] A heat exchange plate, comprising:

[0009] A plate body, wherein a plurality of basic protrusions are convexly disposed on at least one surface of the plate body; and

[0010] At least one spoiler structure, the spoiler structure is convexly disposed on at least one surface of the plate body, and the spoiler structure and the base protrusion are disposed in different areas on the surface of the plate body;

[0011] Wherein: in the spoiler structure and the basic protrusion protruding on the same surface of the plate body, the distance between the vertex or top surface of the spoiler structure and the plate body is greater than the distance between the vertex or top surface of the basic protrusion and the plate body.

[0012] In a specific embodiment, the base protrusions include at least one of corrugated protrusions, spherical protrusions, tetrahedral protrusions, and capsule protrusions; and / or,

[0013] The spoiler structure includes at least one of spherical protrusions, tetrahedral protrusions, and capsule protrusions.

[0014] In another specific embodiment, the heat exchange plate is used to enclose a heat exchange channel;

[0015] The same types of the basic protrusions are arranged in arrays in the heat exchange channel.

[0016] In another specific embodiment, the length direction of the array of the same type of basic protrusions is inclined to the length direction of the heat exchange channel.

[0017] In another specific embodiment, the inclination angle α between the length direction of the array of any type of the basic protrusions and the length direction of the heat exchange channel is: 20°<α<70°.

[0018] In another specific embodiment, the height h of the spoiler structure is: d<h<0.6H, wherein d is the height of the base protrusion, and H is the height of the heat exchange channel.

[0019] In another specific embodiment, when the spoiler structure includes tetrahedral protrusions and / or capsule protrusions, the width t of the tetrahedral protrusions and / or capsule protrusions in the spoiler structure: h<t<4h; and / or the length L of the tetrahedral protrusions in the spoiler structure: 0.5h<L<2h, and L<0.5W, wherein W is the width of the heat exchange channel.

[0020] In another specific embodiment, when the spoiler structure includes tetrahedral protrusions, the forward inclination angle β of the tetrahedral protrusions in the spoiler structure is 5°<β<20°.

[0021] In another specific embodiment, when the spoiler structure includes a capsule protrusion, the capsule protrusion in the spoiler structure has a cross-section that gradually decreases along the direction away from the plate body, and the length L' of an end face away from the plate body is: 0.1W<L'<0.5W, wherein W is the width of the heat exchange channel.

[0022] In another specific embodiment, when the spoiler structure includes spherical protrusions, the width t of the spherical protrusions in the spoiler structure is: 2h<t<4h.

[0023] In another specific embodiment, two back-to-back heat exchange surfaces of the plate body are respectively covered with the basic protrusions and the spoiler structures.

[0024] In another specific embodiment, the plate body is integrally connected to the base protrusion and the spoiler structure respectively.

[0025] In another specific embodiment, a partition rib is further provided on the plate body, and the partition rib is used to partition the space between adjacent plate bodies into at least two heat exchange channels.

[0026] The various embodiments of the present invention can be arbitrarily combined as needed, and the embodiments obtained after these combinations are also within the scope of the present invention and are part of the specific implementation methods of the present invention.

[0027] In order to achieve the above second purpose, the utility model provides the following solution:

[0028] A heat exchanger, comprising a plurality of heat exchange plates as described in any one of the above;

[0029] Along the height direction of the heat exchanger, the plurality of heat exchange plates are stacked in sequence, so that a plurality of heat exchange channels are enclosed between two adjacent heat exchange plates.

[0030] From the above description, it can be known that the heat exchange plate provided in the utility model includes at least the following technical effects: the setting of the basic protrusions improves the surface heat transfer coefficient of the heat exchange plate. Since a spoiler structure is provided on the heat exchange surface, and the spoiler structure is higher than the basic protrusions on the heat exchange surface, when the cooling medium flows through the basic protrusions, a secondary flow will be generated. The secondary flow further thins and destroys the boundary layer, and at the same time interferes with the generation of recirculation zones at the peaks and troughs of the basic protrusions, thereby avoiding increasing the flow resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any novel labor.

[0032] Figure 1 A schematic diagram of the three-dimensional structure of a heat exchange plate provided in the first embodiment of the utility model;

[0033] Figure 2 A schematic diagram of a partial three-dimensional structure of a heat exchange plate provided in the first embodiment of the utility model;

[0034] Figure 3 A partially enlarged three-dimensional structural schematic diagram of a heat exchange plate provided in the first embodiment of the utility model;

[0035] Figure 4 A highly schematic diagram of a spoiler structure provided in the first embodiment of the utility model;

[0036] Figure 5 A schematic diagram of the radius of a semi-cone of a spoiler structure provided in the first embodiment of the utility model;

[0037] Figure 6 A schematic diagram of the length of the spoiler structure provided in the first embodiment of the utility model;

[0038] Figure 7 A schematic diagram of the arrangement of the spoiler structure provided in the first embodiment of the utility model;

[0039] Figure 8 A schematic diagram of the arrangement of the spoiler structure provided in the second embodiment of the utility model;

[0040] Fig. 9 A schematic diagram of the arrangement of the spoiler structure provided in the second embodiment of the utility model;

[0041] Fig.10 A schematic diagram of a partial three-dimensional structure of a heat exchange plate provided in a third embodiment of the utility model;

[0042] Fig.11 A schematic diagram of the height and radius structure of the spoiler structure provided in the third embodiment of the utility model;

[0043] Fig.12 A schematic diagram of a fluid flowing through a heat exchanger provided by the utility model;

[0044] Fig.13 A schematic diagram of the three-dimensional structure of a heat exchange plate in one angle direction provided by the fourth embodiment of the utility model;

[0045] Fig.14 A schematic diagram of the three-dimensional structure of the heat exchange plate in another angle direction provided by the fourth embodiment of the utility model;

[0046] Fig.15 A schematic diagram of a partial three-dimensional structure of a heat exchange plate provided in a fourth embodiment of the utility model;

[0047] Fig.16 A schematic diagram of the length and forward inclination angle of the conical protrusion provided in the fourth embodiment of the utility model;

[0048] Fig.17 A schematic diagram of the length of the conical protrusion provided in the fourth embodiment of the utility model;

[0049] Fig.18 A schematic diagram of the height and width of the conical protrusion provided in the fourth embodiment of the utility model;

[0050] Fig.19 A schematic diagram of the structure of a plurality of heat exchange plates stacked in a fourth embodiment of the present utility model;

[0051] Fig. 20 A schematic diagram of the three-dimensional structure of a heat exchange plate provided in a fifth embodiment of the utility model;

[0052] Fig.21 A schematic diagram of a partial three-dimensional structure of a heat exchange plate provided in a fifth embodiment of the utility model;

[0053] Fig. 22 A schematic diagram of a partial three-dimensional structure of a heat exchange plate provided in a sixth embodiment of the utility model;

[0054] Fig.23 A schematic diagram of a partial three-dimensional structure of a heat exchange plate provided in a seventh embodiment of the utility model;

[0055] Fig.24 This is a schematic diagram of the three-dimensional structure of the heat exchanger provided by the utility model.

[0056] in, Figure 1-Figure 24 middle:

[0057] Heat exchange plate 100, heat exchanger 1000, heat exchange channel 200, plate body 101, base protrusion 102, spoiler structure 103, arc chamfer 103a, arc fillet 103b, arc transition fillet 102a, spoiler groove 101a, partition rib plate 104, base groove 101b. DETAILED DESCRIPTION

[0058] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 24 , the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making novel efforts are within the scope of protection of the utility model.

[0059] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0060] Combination Figure 1-Figure 24As shown, the first aspect of the utility model provides a heat exchange plate 100, which can improve the surface heat transfer coefficient of the heat exchange plate 100 without increasing the flow resistance.

[0061] The heat exchange plate 100 provided by the utility model is used for a heat exchanger 1000, such as Fig.24 As shown, the heat exchanger 1000 includes a plurality of heat exchange plates 100, which are stacked in a staggered manner in sequence along the height direction of the heat exchanger 1000. The staggered stacking here refers to a stacking method that can satisfy the staggered arrangement of the heat exchange channels 200 on the heat exchange plates 100. Along the height direction of the heat exchanger 1000, at least one heat exchange channel 200 is enclosed between adjacent heat exchange plates 100, that is, the heat exchange plates 100 are used to enclose the heat exchange channels 200.

[0062] Specifically, Figure 1 , Figure 2 , Fig.10 , Fig.13 , Fig.14 , Figure 20-23 As shown, the heat exchange plate 100 includes a plate body 101 and at least one spoiler structure 103, wherein a plurality of basic protrusions 102 are convexly provided on at least one surface of the plate body 101. It should be noted that the plate body 101 may be a planar plate structure, and the basic protrusions 102 are provided on the planar plate body 101 structure; the plate body 101 may also be a plate that is wavy as a whole. The provision of the basic protrusions 102 improves the surface heat transfer coefficient of the heat exchange plate 100.

[0063] The spoiler structure 103 is convexly disposed on at least one surface of the plate body 101, and the spoiler structure 103 and the basic protrusion 102 are disposed in different areas on the surface of the plate body 101. It can be understood that there is no basic protrusion 102 at the position where the spoiler structure 103 is connected on the surface of the plate body 101, that is, the spoiler structure 103 and the basic protrusion 102 are separately disposed in different areas on the surface of the plate body 101, such as Figure 2 , Figure 3 , Fig.10 , Figure 21-23 shown.

[0064] In the spoiler structure 103 and the basic protrusion 102 protruding on the same surface of the plate body 101, the distance between the vertex or top surface of the spoiler structure 103 and the plate body 101 is greater than the distance between the vertex or top surface of the basic protrusion 102 and the plate body 101. That is, along the height direction of the heat exchanger 1000, the height value of the spoiler structure 103 is greater than the height value of the basic protrusion 102.

[0065] When the cooling medium flows through the spoiler structure 103, secondary flow is generated, which further thins and destroys the boundary layer generated by the cooling medium flowing through the base protrusion, and interferes with the formation of reflow zones at the crests and troughs of the base protrusion, avoiding increasing flow resistance.

[0066] In some embodiments, the spoiler structure 103 includes at least one of spherical protrusions, tetrahedral protrusions, and capsule protrusions. That is, the spoiler structure 103 may only include spherical protrusions, tetrahedral protrusions, or capsule protrusions. Figure 1-Figure 3 , Fig.10 , Figure 13-Figure 15 , Figure 20-23 As shown; the spoiler structure 103 may also include spherical protrusions and tetrahedral protrusions at the same time, or the spoiler structure 103 may include tetrahedral protrusions and capsule protrusions at the same time, or the spoiler structure 103 may include spherical protrusions, tetrahedral protrusions and capsule protrusions at the same time; the spoiler structure 103 may also include spherical protrusions, tetrahedral protrusions and capsule protrusions at the same time. It can be understood that the structure of the spoiler structure 103 disclosed above is only a specific embodiment of the utility model. In actual applications, the spoiler structure 103 may also be set as protrusions of other shapes.

[0067] In order to make the rotation direction of the secondary flow generated when the cooling medium flows through the spoiler structure 103 consistent with the mainstream direction of the flow through the heat exchange channel 200, in the utility model, the cross section of the spoiler structure 103 gradually decreases along the direction of the spoiler structure 103 away from the heat exchange surface. The variable cross-section structure design of the spoiler structure 103 makes the rotation direction of the secondary flow generated when the cooling medium flows through the spoiler structure 103 consistent with the mainstream direction of the flow through the heat exchange channel 200, and will not be dispersed by its own backflow, and can be propagated for a long distance along the direction of the fluid. The spoiler effect of setting a spoiler structure 103 can cover a large range of the downstream of the heat exchange channel 200. Only one spoiler structure 103 can be set in the middle position of the length direction of the heat exchange channel 200, so that a large range of longitudinal vortices (i.e., vortices generated along the length direction of the heat exchange channel 200) disturbances can be generated on the heat exchange channel 200, thereby improving the heat transfer coefficient, while the pressure drop of the entire heat exchange channel 200 is not significantly improved.

[0068] In some embodiments, the height h of the spoiler structure 103 is: d<h<0.6H, wherein d is the height of the base protrusion 102 on the plate body 101, and H is the height of the heat exchange channel 200. It can be understood that h is the height of the spoiler structure along the height direction of the heat exchange channel 200. h is greater than d, that is, the height of the spoiler structure 103 is greater than the height of the base protrusion 102, so that the secondary flow generated by it can propagate a longer distance along the direction of the fluid without being dispersed by the adjacent base protrusion 102, thereby covering a large range downstream. The value of h cannot be too large and must be less than H, otherwise the support member (such as the separating rib plate 104) on the plate body 101 that supports the upper plate body 101 will lose its supporting function. h needs to be less than 0.6H. When h is greater than 0.6H, the end of the spoiler structure 103 facing away from the plate body 101 is too close to the plate surface of the adjacent layer of the plate body 101, and the longitudinal vortex formed by it is easily dispersed by the basic protrusions 102 on the adjacent layer of the plate body 101 (in this case, the plate body 101 is provided with basic protrusions 102 at both ends along the thickness direction), affecting the effect. In addition, if h is too large, the pressure drop of the heat exchange channel 200 will be too large, affecting the energy consumption.

[0069] In some embodiments, when the spoiler structure 103 includes tetrahedral protrusions and / or capsule protrusions, the width t of the tetrahedral protrusions and / or capsule protrusions in the spoiler structure 103 is: h<t<4h. When the width of the tetrahedral protrusions and / or capsule protrusions is within this range, the cooling medium can generate the desired secondary flow morphology when flowing through the tetrahedral protrusions and / or capsule protrusions. Increasing the ratio of t to h will increase the coverage of the secondary flow in the width direction of the heat exchange channel 200, but at the same time it will also weaken the strength of the longitudinal vortex perpendicular to the mainstream direction, so the ratio cannot be too large.

[0070] In some embodiments, when the spoiler structure 103 includes tetrahedral protrusions, such as Figure 13-Figure 19 and Fig.23 As shown, along the length direction of the heat exchange channel 200, the length L of one end face of the tetrahedral protrusion connecting the plate body 101 affects the scope of the secondary flow, but is also limited by the width of the heat exchange channel 200. In order to maximize the scope of the secondary flow, a specific embodiment of the utility model discloses: 0.5h<L<2h, and L<0.5W, where W is the width of the heat exchange channel 200, such as Fig.24 shown.

[0071] Furthermore, the inclination angle β of the tetrahedral protrusion in the spoiler structure 103 is an acute angle. Specifically, the inclination angle β is the angle between the inlet end of the tetrahedral protrusion facing the heat exchange channel 200 and the plane normal of the plate body 101. It can be understood that the inlet end of the heat exchange channel 200 refers to the end of the heat exchange channel 200 that passes into the cooling medium.

[0072] In this embodiment, the tetrahedral protrusion in the spoiler structure 103 is tilted forward, that is, the tetrahedral protrusion is an oblique tetrahedral protrusion, so as to ensure the structural strength of the tetrahedral protrusion. It should be noted that the angles between the side surfaces of the tetrahedral boss and the heat exchange surface are all acute angles. In order to ensure the spoiler effect, the forward tilt angle β: 5°<β<20°. When β≤5°, the structural strength of the spoiler structure 103 will be reduced, and it will be difficult to press and form during the mold manufacturing process. When β≥20°, an effective longitudinal vortex cannot be formed, and the enhanced heat exchange effect is significantly reduced.

[0073] A specific embodiment of the utility model discloses that a rounded transition is set between adjacent sides of the spoiler structure 103. Firstly, it reduces the resistance of the fluid flowing through; secondly, it avoids the formation of eddy current dead zone at the corner, which affects the heat exchange; thirdly, it is convenient for mold opening and manufacturing. If these rounded structures are not set, the structures at the sharp corners are easy to be damaged during the manufacturing process.

[0074] In some other embodiments, when the spoiler structure 103 includes capsule protrusions, the structure of the capsule protrusions in the spoiler structure 103 is as follows: Figure 1-Figure 9 and Figure 20-Figure 22 As shown, along the direction where the capsule protrusion moves away from the plate body 101, the capsule protrusion is a boss with a gradually decreasing cross-section, and both sides of the capsule protrusion along the length direction of the capsule protrusion are semi-conical structures of the same height as the capsule protrusion, and the width of the capsule protrusion is equal to the diameter of the semi-conical structure; the width t of the end face of one end of the spoiler structure 103 connected to the heat exchange surface is 2r, where r is the radius of the semi-conical surface.

[0075] The side surfaces of the capsule protrusion along the width direction of the capsule protrusion are inclined slopes. The length L' of the capsule protrusion along the end surface away from the plate body 101 is: 0.1W<L'<0.5W, where W is the width of the heat exchange channel 200.

[0076] like Figure 2 As shown, the length direction of the capsule protrusion of the spoiler structure 103 is inclined with respect to the length direction of the heat exchange channel 200 , and the included angle γ is: 0°<γ<90°.

[0077] In order to prevent the γ value from being too large and blocking more cross-sectional area of ​​the heat exchange channel 200, resulting in increased resistance, and to prevent the γ value from being too small and causing the secondary flow formed by the capsule protrusion to be unable to cover the entire width of the heat exchange channel 200, thereby affecting the turbulence effect, γ is set to 45° in this embodiment.

[0078] In some other embodiments, the spoiler structure 103 includes a spherical protrusion, such as Fig.10 As shown, the spherical protrusion in the spoiler structure 103 is specifically a small hemispherical shape (ie, smaller than a hemisphere), that is, the cross section of the spherical protrusion is circular.

[0079] like Fig.11 As shown, the end face radius r of the spherical protrusion in the spoiler structure 103 set at one end of the heat exchange surface is half of the width t of the spoiler structure, that is, r = 0.5t. When r < h, the cutting angle between the spherical protrusion and the heat exchange surface is an acute angle, which cannot be molded and pressed, so r needs to be not less than h; when r > 2h, the cutting angle between the spherical protrusion and the heat exchange surface is too large, and the spoiler effect is poor. Therefore, in this embodiment, the width t of the spherical protrusion in the spoiler structure 103 is set to: 2h < t < 4h.

[0080] In some embodiments, Figure 3 As shown, an arc-shaped fillet 103 b is provided between the end surface of one end of the spoiler structure 103 connected to the plate body and the plate body 101 .

[0081] Furthermore, if Figure 3 and Fig.15 As shown, in the basic protrusion 102 which is arranged in the circumferential direction of the spoiler structure 103 , an arc-shaped transition fillet 102 a is provided at one end of the basic protrusion 102 which faces the spoiler structure 103 .

[0082] The functions of setting the arc-shaped fillet 103b and the arc-shaped transition fillet 102a are: first, to reduce the resistance of fluid flow; second, to avoid the formation of eddy current dead zones at the corners, which affects heat exchange; third, to facilitate mold manufacturing. If these fillet structures are not set, the structures at the sharp corners are easily damaged during the manufacturing process.

[0083] In some embodiments, the basic protrusion 102 includes at least one of a corrugated protrusion, a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion. It should be noted that when the basic protrusion 102 includes at least one of a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion, the spherical protrusion in the basic protrusion 102 can have the same shape as the spherical protrusion in the spoiler structure 103, the tetrahedral protrusion in the basic protrusion 102 can have the same shape as the tetrahedral protrusion in the spoiler structure 103, and the capsule protrusion in the basic protrusion 102 can have the same shape as the capsule protrusion in the spoiler structure 103. It can be understood that the same shape here is limited to the same appearance shape, and the size is not the same.

[0084] The basic protrusion 102 may include only corrugated protrusions, spherical protrusions, tetrahedral protrusions or capsule protrusions; the basic protrusion 102 may also include two kinds of protrusions: the basic protrusion 102 includes corrugated protrusions and spherical protrusions, the basic protrusion 102 includes corrugated protrusions and tetrahedral protrusions, the basic protrusion 102 includes corrugated protrusions and capsule protrusions, the basic protrusion 102 includes spherical protrusions and tetrahedral protrusions, the basic protrusion 102 includes spherical protrusions and capsule protrusions, the basic protrusion 102 includes tetrahedral protrusions and Capsule protrusions; the basic protrusions 102 may also include three types of protrusions at the same time: the basic protrusions 102 include corrugated protrusions, spherical protrusions and tetrahedral protrusions, the basic protrusions 102 include corrugated protrusions, spherical protrusions and capsule protrusions, the basic protrusions 102 include spherical protrusions, capsule protrusions and tetrahedral protrusions, the basic protrusions 102 include corrugated protrusions, tetrahedral protrusions or capsule protrusions; the basic protrusions 102 may also include four types of protrusions at the same time: corrugated protrusions, spherical protrusions, tetrahedral protrusions and capsule protrusions. It can be understood that the several types of protrusions included in the basic protrusions 102 disclosed above are only a specific embodiment of the present utility model. In actual applications, the basic protrusions 102 may also include other types of protrusions.

[0085] It should be noted that the types of the spoiler structures 103 disclosed in the above embodiments can be arbitrarily combined with the types of the basic protrusions 102 in this embodiment.

[0086] The utility model provides some specific implementations of the combination of the spoiler structure 103 and the base protrusion 102: Figure 1-Figure 3 As shown, the basic protrusion 102 includes a corrugated protrusion, and the spoiler structure 103 includes a capsule protrusion; Fig.10 As shown, the basic protrusion 102 includes a corrugated protrusion, and the spoiler structure 103 includes a spherical protrusion; Figure 13-Figure 15 As shown, the basic protrusion 102 includes a corrugated protrusion, and the spoiler structure 103 includes a tetrahedral protrusion; Fig. 20 and Fig.21 As shown, the basic protrusion 102 includes a capsule protrusion, and the spoiler structure 103 includes a capsule protrusion; Fig. 22 As shown, the basic protrusion 102 includes a tetrahedral protrusion, and the spoiler structure 103 includes a capsule protrusion; Fig.23 As shown, the basic protrusion 102 includes a spherical protrusion, and the spoiler structure 103 includes a tetrahedral protrusion.

[0087] The length direction of the array of the same type of basic protrusions 102 is respectively inclined with the length direction of the heat exchange channel 200. When the basic protrusions 102 include corrugated protrusions, the length direction of the corrugated protrusions is the length direction of the array.

[0088] The inclination angle of the spoiler structure 103 and the inclination angle of the basic protrusion 102 jointly affect the flow state of the cooling medium in the heat exchange channel 200. The inclination angle values ​​of the spoiler structure 103 and the basic protrusion 102 can be set within the above-mentioned angle range as needed.

[0089] An inclination angle α between the length direction of any type of array of the basic protrusions 102 and the length direction of the heat exchange channel 200 is: 20°<α<70°.

[0090] like Figure 7 As shown, a specific embodiment of the utility model discloses that the angle between the spoiler structure 103 and the length direction of the heat exchange channel 200 is 45°, and the length direction of the array of basic protrusions 102 is perpendicular to the spoiler structure 103; of course, it can also be as Figure 8 As shown, the spoiler structure 103 and the base protrusion 102 have the same inclination angle, and both form an angle of 45° with the length direction of the heat exchange channel 200 .

[0091] The above-disclosed parallel arrangement of the spoiler structures 103 is only a specific embodiment of the present invention. In practical applications, it can also be: multiple spoiler structures 103 are arranged in the same heat exchange channel 200, and at least two adjacent spoiler structures 103 are arranged obliquely or vertically. In this case, the inclination direction of the spoiler structure 103 can be changed periodically, such as Fig. 9 As shown, in the same heat exchange channel 200, two adjacent spoiler structures 103 are vertically arranged, that is, the two spoiler structures 103 separated by a spoiler structure 103 have the same inclination direction.

[0092] In a specific embodiment, taking the case where the base protrusion 102 includes a corrugated protrusion, the angle between the corrugated protrusion and the length direction of the heat exchange channel 200 is 45°, the spoiler structure 103 is arranged perpendicular to the corrugated protrusion, and the radius r of the semi-cone of the spoiler structure 103 is: r=h=0.3H as an example, the heat exchanger 1000 is compared with the heat exchanger in the prior art, and the heat exchange capacity is effectively improved under the same pressure drop.

[0093] In some embodiments, Figure 1-Figure 3 , Fig.10 , Fig.13 , Fig.14 , Figure 21-23 As shown, the plate body 101 has two heat exchange surfaces arranged back to back, and the two heat exchange surfaces of the same plate body 101 are respectively covered with basic protrusions 102 and spoiler structures 103, so that both surfaces of the plate body 101 can be used, thereby improving the versatility of the heat exchange plate 100. It should be noted that the "covered" here means that the entire heat exchange surface is completely or substantially completely covered with basic protrusions and spoiler structures 103.

[0094] In order to further improve the versatility of the heat exchange plate 100, a specific embodiment of the present invention discloses that a plurality of spoiler grooves 101a are provided on any heat exchange surface of the same plate body 101, such as Figure 2 , Fig.10 , Fig.13 , Fig.14 , Figure 20-23 As shown, in the same heat exchange surface, the number of the spoiler grooves 101a is equal to the number of the spoiler structures 103, and the spoiler grooves 101a and the spoiler structures 103 are arranged in sequence at equal intervals along the direction in which the cooling medium flows through the heat exchange surface (i.e., the length direction of the heat exchange channel 200), and the spoiler grooves 101a are formed as spoiler structures 103 on another heat exchange surface of the same plate body 101. In other words, the spoiler grooves 101a on one heat exchange surface of the plate body 101 are spoiler structures 103 on another heat exchange surface of the same plate body 101.

[0095] Furthermore, a partition rib 104 is provided on the plate body 101 . Specifically, in the heat exchanger 1000 , along the height direction of the heat exchanger 1000 , the space enclosed between adjacent plate bodies 101 is divided into a plurality of heat exchange channels 200 by the partition rib 104 .

[0096] Furthermore, a plurality of spoiler structures 103 are provided in the same heat exchange channel 200, and the spacing between adjacent spoiler structures 103 is equal to twice the width of the heat exchange channel 200. When assembling the heat exchanger 1000, along the height direction of the heat exchanger 1000, the shape of each layer of heat exchange plates 100 is the same, and the upper layer of heat exchange plates 100 is rotated 90° and placed on the lower layer to ensure that spoiler structures 103 appear in sequence at the top and bottom of each heat exchange channel 200, such as Fig.12 The advantage of this arrangement is that the concave structures (spoiler grooves 101a and spoiler structures 103) that mainly affect the flow field in the heat exchange channel 200 can be evenly distributed throughout the heat exchange channel 200, and there will be no situation where the upper and lower layers of heat exchange plates 100 are both concave at a certain place, resulting in increased resistance, or are both convex, resulting in the inability to form effective longitudinal vortices at that place. It can be understood that the words indicating the direction in this embodiment are all based on Fig.12 The limitation on the direction in the figure is only for the convenience of expression and has no other specific meaning.

[0097] Similarly, in order to further improve the versatility of the heat exchange plate 100, a specific embodiment of the utility model discloses that a plurality of basic grooves 101b are provided on any heat exchange surface of the same plate body 101. In the same heat exchange surface, the number of basic grooves 101b is equal to the number of basic protrusions 102 on the same heat exchange surface, and the basic grooves 101b are arranged vertically to the basic protrusions 102, and the basic grooves 101b are formed as basic protrusions 102 on another heat exchange surface of the same plate body 101.

[0098] In some embodiments, the plate body 101 is integrally connected with the base protrusion 102 and the spoiler structure 103 , respectively, thereby improving the overall strength of the heat exchange plate 100 .

[0099] like Fig.24 As shown, the second aspect of the utility model provides a heat exchanger 1000, comprising a plurality of heat exchange plates 100 as in any one of the above embodiments, and along the height direction of the heat exchanger 1000, the plurality of heat exchange plates 100 are stacked in sequence, so that a plurality of heat exchange channels 200 are enclosed between two adjacent heat exchange plates 100.

[0100] Since the heat exchanger 1000 provided by the present invention includes the heat exchange plate 100 in any one of the above embodiments, the beneficial effects of the heat exchange plate 100 are all included in the heat exchanger 1000 provided by the present invention.

[0101] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0102] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0103] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat exchange plate (100), characterized in that: include: A plate body (101), wherein a plurality of basic protrusions (102) are convexly provided on at least one surface of the plate body (101); and at least one spoiler structure (103), the spoiler structure (103) being protrudingly disposed on at least one surface of the plate body (101), the spoiler structure (103) and the base protrusion (102) being disposed in different areas on the surface of the plate body (101); Wherein: in the spoiler structure (103) and the base protrusion (102) protruding on the same surface of the plate body (101), the distance between the vertex or top surface of the spoiler structure (103) and the plate body (101) is greater than the distance between the vertex or top surface of the base protrusion (102) and the plate body (101).

2. The heat exchange plate (100) according to claim 1, characterized in that: The basic protrusion (102) includes at least one of a corrugated protrusion, a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion; and / or, The spoiler structure (103) comprises at least one of spherical protrusions, tetrahedral protrusions, and capsule protrusions.

3. The heat exchange plate (100) according to claim 2, characterized in that: The heat exchange plate (100) is used to enclose a heat exchange channel (200); The same type of the basic protrusions (102) are arranged in arrays in the heat exchange channel (200).

4. The heat exchange plate (100) according to claim 3, characterized in that: The length directions of the arrays of the same type of basic protrusions (102) are arranged obliquely to the length direction of the heat exchange channel (200).

5. The heat exchange plate (100) according to claim 4, characterized in that: The inclination angle α between the length direction of the array of any type of the basic protrusions (102) and the length direction of the heat exchange channel is: 20°<α<70°.

6. The heat exchange plate (100) according to claim 3, characterized in that: The height h of the spoiler structure (103) is: d<h<0.6H, wherein d is the height of the base protrusion (102), and H is the height of the heat exchange channel (200).

7. The heat exchange plate (100) according to claim 6, characterized in that: When the spoiler structure (103) includes tetrahedral protrusions and / or capsule protrusions, the width t of the tetrahedral protrusions and / or capsule protrusions in the spoiler structure (103) is: h<t<4h; or / and when the spoiler structure (103) includes tetrahedral protrusions, the length L of the tetrahedral protrusions in the spoiler structure (103) is: 0.5h<L<2h, and L<0.5W, wherein W is the width of the heat exchange channel (200).

8. The heat exchange plate (100) according to claim 6, characterized in that: When the spoiler structure (103) includes tetrahedral protrusions, the forward inclination angle β of the tetrahedral protrusions in the spoiler structure (103) is 5°<β<20°.

9. The heat exchange plate (100) according to claim 3, characterized in that: When the spoiler structure (103) includes a capsule protrusion, the capsule protrusion in the spoiler structure (103) has a cross-section that gradually decreases along a direction away from the plate body (101), and a length L' of an end face away from the plate body (101): 0.1W<L'<0.5W, wherein W is the width of the heat exchange channel (200).

10. The heat exchange plate (100) according to claim 6, characterized in that: When the spoiler structure (103) includes a spherical protrusion, the width t of the spherical protrusion in the spoiler structure (103) is: 2h<t<4h.

11. The heat exchange plate (100) according to claim 1, characterized in that: The two heat exchange surfaces of the plate body (101) arranged back to back are respectively covered with the basic protrusions (102) and the spoiler structures (103).

12. The heat exchange plate (100) according to claim 1, characterized in that: The plate body (101) is integrally formed and connected to the base protrusion (102) and the spoiler structure (103) respectively.

13. The heat exchange plate (100) according to any one of claims 1 to 12, characterized in that: A partition rib (104) is also provided on the plate body (101), and the partition rib (104) is used to separate the space between adjacent plate bodies (101) into at least two heat exchange channels (200).

14. A heat exchanger (1000), characterized in that: Comprising a plurality of heat exchange plates (100) according to any one of claims 1 to 13; Along the height direction of the heat exchanger (1000), a plurality of the heat exchange plates (100) are stacked in sequence, so that a plurality of heat exchange channels (200) are enclosed between two adjacent heat exchange plates (100).

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