Heat exchange plate and heat exchanger

Abstract

The invention discloses a heat exchange plate and a heat exchanger, the heat exchange plate comprises a plate body, and 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 increased through 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; 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 present invention relates to the technical field of units, and in particular to a heat exchange plate and a heat exchanger. Background Art

[0002] A plate-type air heat exchanger usually uses a flat plate made of thin aluminum plates or other polymer material plates, which are arranged in an interlaced manner to form multiple rows of interlaced heat exchange channels. Two airflows flow through the heat exchange channels in an interlaced manner for indirect heat exchange. For the heat exchanger surrounded by such flat plates, due to the small heat transfer coefficient, it can only improve the heat transfer efficiency by increasing the air volume or the volume of the heat exchanger.

[0003] In order to improve the heat transfer coefficient of the heat exchanger, corrugated plates, etc. are usually used to replace the flat plates. In the process of implementing the present invention, the inventor found that there are at least the following problems in the prior art: Although the surface heat transfer coefficient of the heat exchange channels surrounded by the corrugated plates has been improved, the improvement is relatively limited. Moreover, a significant drawback of the corrugated channels is that there are recirculation zones at the wave crest and wave trough positions of the corrugations. These recirculation zones will weaken the heat transfer, increase the flow resistance at the same time, and affect the heat transfer 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 at present. Summary of the Invention

[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 present invention is to provide a heat exchanger.

[0007] In order to achieve the above first object, the present invention provides the following solution:

[0008] A heat exchange plate, comprising:

[0009] A plate body, on at least one surface of which there are convexly provided a plurality of basic protrusions; and

[0010] At least one flow disturbance structure, which is convexly provided on at least one surface of the plate body, and the flow disturbance structure and the basic protrusions are arranged in different areas on the surface of the plate body;

[0011] Wherein: among the flow disturbance structure and the basic protrusions convexly provided on the same surface of the plate body, the distance between the vertex or the top surface of the flow disturbance structure and the plate body is greater than the distance between the vertex or the top surface of the basic protrusion and the plate body.

[0012] In a specific embodiment, the basic protrusion includes at least one of a corrugated protrusion, a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion; 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 plates are used to enclose a heat exchange channel;

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

[0016] In another specific embodiment, the length directions of the arrays formed by the same type of the basic protrusions are respectively inclined with respect to the length direction of the heat exchange channel.

[0017] In another specific embodiment, the inclination angle α between the length direction of any type of array 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, where d is the height of the basic 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 is: h < t < 4h; and / or the length L of the tetrahedral protrusions in the spoiler structure is: 0.5h < L < 2h, and L < 0.5W, where W is the width of the heat exchange channel.

[0020] In another specific embodiment, when the spoiler structure includes tetrahedral protrusions, the front 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 capsule protrusions, the cross-section of the capsule protrusions in the spoiler structure gradually decreases in the direction away from the plate body, and the length L' of the end face at the end away from the plate body is: 0.1W < L' < 0.5W, where 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, both of the two heat exchange surfaces of the plate body arranged back to back are respectively covered with the basic protrusions and the spoiler structure.

[0024] In another specific embodiment, the plate body is integrally formed and connected with the basic protrusions and the spoiler structure respectively.

[0025] In another specific embodiment, a partition rib plate is further arranged on the plate body, and the partition rib plate 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 according to needs, and the embodiments obtained after these combinations are also within the scope of the present invention and are part of the specific implementation manners of the present invention.

[0027] In order to achieve the above second object, the present invention provides the following solution:

[0028] A heat exchanger includes a plurality of heat exchange plates as described in any one of the above.

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

[0030] Through the above description, it can be seen that the heat exchange plate provided by the present invention has at least the following technical effects: the setting of the basic protrusions improves the surface heat transfer coefficient of the heat exchange plate. Since the heat transfer surface is provided with a flow disturbance structure, and the flow disturbance structure is higher than the basic protrusions on the heat transfer 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 the recirculation zones at the peak and trough positions of the basic protrusions, avoiding an increase in flow resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 A three-dimensional structure diagram of the heat exchange plate provided in the first embodiment of the present invention;

[0033] Figure 2 A partial three-dimensional structure diagram of the heat exchange plate provided in the first embodiment of the present invention;

[0034] Figure 3 A partial enlarged three-dimensional structure diagram of the heat exchange plate provided in the first embodiment of the present invention;

[0035] Figure 4 A height diagram of the flow disturbance structure provided in the first embodiment of the present invention;

[0036] Figure 5Schematic diagram of the radius of the semi-cone of the flow disturbance structure provided by the first embodiment of the present invention;

[0037] Figure 6 Schematic diagram of the length of the flow disturbance structure provided by the first embodiment of the present invention;

[0038] Figure 7 Schematic diagram of the arrangement of the flow disturbance structure provided by the first embodiment of the present invention;

[0039] Figure 8 Schematic diagram of the arrangement of the flow disturbance structure provided by the second embodiment of the present invention;

[0040] Figure 9 Schematic diagram of the arrangement of the flow disturbance structure provided by the second embodiment of the present invention;

[0041] Figure 10 Partial three-dimensional structure schematic diagram of the heat exchange plate provided by the third embodiment of the present invention;

[0042] Figure 11 Schematic diagram of the height and radius structure of the flow disturbance structure provided by the third embodiment of the present invention;

[0043] Figure 12 Schematic diagram of the fluid flowing through the heat exchanger provided by the present invention;

[0044] Figure 13 Three-dimensional structure schematic diagram of the heat exchange plate in one angular direction provided by the fourth embodiment of the present invention;

[0045] Figure 14 Three-dimensional structure schematic diagram of the heat exchange plate in another angular direction provided by the fourth embodiment of the present invention;

[0046] Figure 15 Partial three-dimensional structure schematic diagram of the heat exchange plate provided by the fourth embodiment of the present invention;

[0047] Figure 16 Schematic diagram of the length and front inclination angle of the conical protrusion provided by the fourth embodiment of the present invention;

[0048] Figure 17 Schematic diagram of the length of the conical protrusion provided by the fourth embodiment of the present invention;

[0049] Figure 18 Schematic diagram of the height and width of the conical protrusion provided by the fourth embodiment of the present invention;

[0050] Figure 19 Schematic diagram of the structure when multiple heat exchange plates are stacked provided by the fourth embodiment of the present invention;

[0051] Figure 203D structural schematic diagram of the heat exchange plate provided by the fifth embodiment of the present invention;

[0052] Figure 21 Partial 3D structural schematic diagram of the heat exchange plate provided by the fifth embodiment of the present invention;

[0053] Figure 22 Partial 3D structural schematic diagram of the heat exchange plate provided by the sixth embodiment of the present invention;

[0054] Figure 23 Partial 3D structural schematic diagram of the heat exchange plate provided by the seventh embodiment of the present invention;

[0055] Figure 24 3D structural schematic diagram of the heat exchanger provided by the present invention.

[0056] Among them, Figures 1 - 24 In:

[0057] Heat exchange plate 100, heat exchanger 1000, heat exchange channel 200, plate body 101, basic protrusion 102, flow disturbance structure 103, arc chamfer 103a, arc fillet 103b, arc transition fillet 102a, flow disturbance groove 101a, partition rib plate 104, basic groove 101b. Detailed implementation manners

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Figures 1 - 24 In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0059] In combination with what is shown in the drawings, the first aspect of the present invention 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.

[0060] Combined with Figures 1 - 24 As shown, the heat exchange plate 100 provided by the present invention is used in the heat exchanger 1000, such as

[0061] The heat exchange plate 100 provided by the present invention is used for the heat exchanger 1000, such as Figure 24As shown, the heat exchanger 1000 includes a plurality of heat exchange plates 100, and the plurality of heat exchange plates 100 are sequentially stacked in an alternating manner along the height direction of the heat exchanger 1000. Here, the alternating stacking means 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 defined between adjacent heat exchange plates 100, that is, the heat exchange plates 100 are used to define the heat exchange channels 200.

[0062] Specifically, as Figure 1 , Figure 2 , Figure 10 , Figure 13 , Figure 14 , Figures 20 - 23 shown, the heat exchange plate 100 includes a plate body 101 and at least one flow disturbing structure 103. Among them, a plurality of basic protrusions 102 protrude from at least one surface of the plate body 101. It should be noted that the plate body 101 can be a flat plate structure, and the basic protrusions 102 are arranged on the flat plate body 101 structure; the plate body 101 can also be a plate with an overall wavy shape, etc. The setting of the basic protrusions 102 improves the surface heat transfer coefficient of the heat exchange plate 100.

[0063] The flow disturbing structure 103 protrudes from at least one surface of the plate body 101, and the flow disturbing structure 103 and the basic protrusions 102 are arranged in different regions on the surface of the plate body 101. It can be understood that there are no basic protrusions 102 at the positions on the surface of the plate body 101 where the flow disturbing structure 103 is connected, that is, the flow disturbing structure 103 and the basic protrusions 102 are separately arranged in different regions on the surface of the plate body 101, as Figure 2 , Figure 3 , Figure 10 , Figures 21 - 23 shown.

[0064] Among the flow disturbing structure 103 and the basic protrusions 102 protruding from the same surface of the plate body 101, the vertex or top surface of the flow disturbing structure 103 is farther from the plate body 101 than the vertex or top surface of the basic protrusion 102. That is to say, along the height direction of the heat exchanger 1000, the height value of the flow disturbing structure 103 is greater than the height value of the basic protrusion 102.

[0065] When the cooling medium flows through the flow disturbing structure 103, a secondary flow will be generated. The secondary flow further thins and destroys the boundary layer generated by the cooling medium flowing through the basic protrusions, and at the same time interferes with the generation of the recirculation zones at the peak and valley positions in the basic protrusions, avoiding an increase in flow resistance.

[0066] In some embodiments, the flow disturbing structure 103 includes at least one of a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion. That is, the flow disturbing structure 103 can only include a spherical protrusion, a tetrahedral protrusion, or a capsule protrusion, as Figures 1 - 3, Figure 10 , Figures 13 - 15 , Figures 20 - 23 as shown in; the spoiler structure 103 may also include spherical protrusions and tetrahedral protrusions at the same time, or the spoiler structure 103 includes tetrahedral protrusions and capsule protrusions at the same time, or the spoiler structure 103 includes spherical 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 present invention. In practical 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 present invention, along the direction in which the spoiler structure 103 is away from the heat exchange surface, the cross-section of the spoiler structure 103 gradually decreases. 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 washed away by its own backflow. It can propagate a long distance along the fluid direction. The spoiler effect of setting one spoiler structure 103 can cover a large range downstream of the heat exchange channel 200. Only one spoiler structure 103 can be set at the middle position in the length direction of the heat exchange channel 200, which can generate a large range of longitudinal vortices (i.e., vortices generated along the length direction of the heat exchange channel 200) in the heat exchange channel 200 to disturb and thus improve the heat transfer coefficient, while the pressure drop of the entire heat exchange channel 200 is not significantly increased.

[0068] In some embodiments, the height h of the spoiler structure 103: d < h < 0.6H, where d is the height of the basic 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 basic protrusion 102, and the secondary flow generated by it can propagate a longer distance along the fluid direction without being washed away by the adjacent basic protrusion 102, so as to cover a large range downstream. The value of h cannot be too large and needs to be less than H, otherwise the support members (such as the partition rib plate 104) that support the upper plate body 101 on the plate body 101 will lose their supporting effect. h needs to be less than 0.6H. When h is greater than 0.6H, the end of the spoiler structure 103 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 washed away by the basic protrusion 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, too large h will also cause too large a pressure drop in the heat exchange channel 200, affecting 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 satisfies: h < t < 4h. When the width of the tetrahedral protrusions and / or capsule protrusions is within this range value, the cooling medium can generate the required secondary flow pattern when flowing through the tetrahedral protrusions and / or capsule protrusions. Increasing the ratio of t to h will increase the coverage range of the secondary flow in the width direction of the heat exchange channel 200, but at the same time, it will weaken the intensity of the longitudinal vortices perpendicular to the mainstream direction. Therefore, the ratio cannot be too large.

[0070] In some embodiments, when the spoiler structure 103 includes tetrahedral protrusions, as Figures 13 - 19 and Figure 23 shown, along the length direction of the heat exchange channel 200, the length L of the end face of the tetrahedral protrusion connecting the plate body 101 affects the action range of the secondary flow, but is limited by the width of the heat exchange channel 200 at the same time. In order to increase the action range of the secondary flow as much as possible, a specific embodiment of the present invention discloses: 0.5h < L < 2h, and L < 0.5W, where W is the width of the heat exchange channel 200, as Figure 24 shown.

[0071] Furthermore, the front inclination angle β of the tetrahedral protrusions in the spoiler structure 103 is an acute angle. Specifically, the front inclination angle β is the angle formed between the end of the tetrahedral protrusion facing the inlet of 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 where the cooling medium enters the heat exchange channel 200.

[0072] In this embodiment, by setting the tetrahedral protrusions in the spoiler structure 103 to be inclined forward, that is, the tetrahedral protrusions are oblique tetrahedral protrusions, the structural strength of the tetrahedral protrusions is ensured. It should be noted that the angles formed between each side surface of the tetrahedral boss and the heat exchange surface are all acute angles. In order to ensure the spoiler effect, the front inclination angle β: 5° < β < 20°. When β ≤ 5°, the structural strength of this spoiler structure 103 will be reduced, and it is difficult to be pressed into shape during the mold manufacturing process. When β ≥ 20°, effective longitudinal vortices cannot be formed, and the obviousness of enhancing the heat exchange effect is reduced.

[0073] A specific embodiment of the present invention discloses that a fillet transition is provided between adjacent side surfaces of the spoiler structure 103. First, it reduces the resistance of the fluid flow; second, it avoids the formation of vortex dead zones at the corners, which affects heat exchange; third, it is convenient for mold manufacturing. If these fillet structures are not provided, the structures at the sharp corners are likely 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 Figures 1 - 9 and Figures 20 - 22As shown, along the direction in which the capsule protrusion is 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 with the same height as the capsule protrusion. The width of the capsule protrusion is equal to the diameter of the semi-conical structure; the width t of one end face of the turbulator structure 103 connected to the heat exchange surface is 2r, where r is the radius of the semi-conical surface.

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

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

[0077] In order to prevent the resistance from increasing due to excessive γ value resulting in blocking a large cross-sectional area of the heat exchange channel 200, and at the same time prevent the secondary flow formed by the capsule protrusion from being unable to cover the entire width of the heat exchange channel 200 due to too small γ value, thereby affecting the turbulator effect, γ is set to 45° in this embodiment.

[0078] In some other embodiments, the turbulator structure 103 includes a spherical protrusion, as Figure 10 shown, the spherical protrusion in the turbulator structure 103 is specifically a small hemispherical shape (i.e., less than hemispherical), that is, the cross-section of the spherical protrusion is circular.

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

[0080] In some embodiments, as Figure 3 shown, an arc-shaped fillet 103b is provided between one end face of the turbulator structure 103 connecting the plate body and the plate body 101.

[0081] Furthermore, as Figure 3 and Figure 15 shown, in the base protrusion 102 surrounding the circumferential direction of the turbulator structure 103, an arc-shaped transition fillet 102a is provided at one end of the base protrusion 102 facing the turbulator structure 103.

[0082] The functions of setting the arc-shaped rounded corner 103b and the arc-shaped transitional rounded corner 102a are as follows: First, reduce the resistance of the fluid flow; second, avoid forming vortex dead zones at the corners, which affects heat transfer; third, facilitate mold manufacturing. If these rounded corner structures are not set, the structures at the sharp corners are likely to be damaged during the manufacturing process.

[0083] In some embodiments, the base 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 base protrusion 102 includes at least one of a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion, the spherical protrusion in the base protrusion 102 can have the same shape as the spherical protrusion in the flow disturbing structure 103, the tetrahedral protrusion in the base protrusion 102 can have the same shape as the tetrahedral protrusion in the flow disturbing structure 103, and the capsule protrusion in the base protrusion 102 can have the same shape as the capsule protrusion in the flow disturbing structure 103. It can be understood that the same shape here is only limited to the appearance shape being the same, and the sizes are not the same.

[0084] The base protrusion 102 can only include a corrugated protrusion, a spherical protrusion, a tetrahedral protrusion, or a capsule protrusion; the base protrusion 102 can also include two types of protrusions: the base protrusion 102 includes a corrugated protrusion and a spherical protrusion, the base protrusion 102 includes a corrugated protrusion and a tetrahedral protrusion, the base protrusion 102 includes a corrugated protrusion and a capsule protrusion, the base protrusion 102 includes a spherical protrusion and a tetrahedral protrusion, the base protrusion 102 includes a spherical protrusion and a capsule protrusion, the base protrusion 102 includes a tetrahedral protrusion and a capsule protrusion; the base protrusion 102 can also include three types of protrusions at the same time: the base protrusion 102 includes a corrugated protrusion, a spherical protrusion, and a tetrahedral protrusion, the base protrusion 102 includes a corrugated protrusion, a spherical protrusion, and a capsule protrusion, the base protrusion 102 includes a spherical protrusion, a capsule protrusion, and a tetrahedral protrusion, the base protrusion 102 includes a corrugated protrusion, a tetrahedral protrusion, or a capsule protrusion; the base protrusion 102 can also include four types of protrusions at the same time: a corrugated protrusion, a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion. It can be understood that the several types of protrusions included in the above-disclosed base protrusion 102 are only a specific embodiment of the present invention. In practical applications, it can also be set that the base protrusion 102 further includes other types of protrusions.

[0085] It should be noted that the types of the flow disturbing structure 103 disclosed in the above embodiments can be arbitrarily combined with the types of the base protrusion 102 in this embodiment.

[0086] The present invention provides some specific embodiments of the combination of the flow disturbing structure 103 and the base protrusion 102: such as Figures 1 - 3 shown, the base protrusion 102 includes a corrugated protrusion, and the flow disturbing structure 103 includes a capsule protrusion; as Figure 10 shown, the base protrusion 102 includes a corrugated protrusion, and the flow disturbing structure 103 includes a spherical protrusion; asFigures 13 - 15 As shown, the base protrusion 102 includes corrugated protrusions, and the flow disturbance structure 103 includes tetrahedral protrusions; as Figure 20 and Figure 21 shown, the base protrusion 102 includes capsule protrusions, and the flow disturbance structure 103 includes capsule protrusions; as Figure 22 shown, the base protrusion 102 includes tetrahedral protrusions, and the flow disturbance structure 103 includes capsule protrusions; as Figure 23 shown, the base protrusion 102 includes spherical protrusions, and the flow disturbance structure 103 includes tetrahedral protrusions.

[0087] The length directions of the arrays formed by any one type of the base protrusions 102 are respectively inclined with respect to the length direction of the heat exchange channel 200. When the base protrusion 102 includes corrugated protrusions, the length direction of the corrugated protrusions is the length direction of the formed array.

[0088] The inclination angles of the flow disturbance structure 103 and the base protrusion 102 jointly affect the flow state of the cooling medium in the heat exchange channel 200, and the inclination angle values of the flow disturbance structure 103 and the base protrusion 102 can be set within the above angle range values according to needs.

[0089] The inclination angle α between the length direction of any one type of array in the base protrusion 102 and the length direction of the heat exchange channel 200: 20° < α < 70°.

[0090] As Figure 7 shown, a specific embodiment of the present invention discloses that the included angle between the flow disturbance structure 103 and the length direction of the heat exchange channel 200 is 45°, and the length direction of the array formed by the base protrusion 102 is perpendicular to the flow disturbance structure 103; of course, it can also be as Figure 8 shown, the inclination angles of the flow disturbance structure 103 and the base protrusion 102 are the same, and both are at an included angle of 45° with respect to the length direction of the heat exchange channel 200.

[0091] The arrangement mode in which the above-disclosed flow disturbance structures 103 are arranged in parallel is only a specific embodiment of the present invention. In practical applications, it can also be: multiple flow disturbance structures 103 are provided in the same heat exchange channel 200, and at least two adjacent flow disturbance structures 103 are inclined or perpendicular. At this time, the inclination direction of the flow disturbance structure 103 can change periodically, as Figure 9 shown, in the same heat exchange channel 200, two adjacent flow disturbance structures 103 are perpendicular, that is, the inclination directions of two flow disturbance structures 103 with one flow disturbance structure 103 in between are the same.

[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, Figures 1 - 3 , Figure 10 , Figure 13 , Figure 14 , Figures 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 , Figure 10 , Figure 13 , Figure 14 , Figures 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] Further, a plurality of flow disturbing structures 103 are provided in the same heat exchange channel 200, and the distance between adjacent flow disturbing 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 shapes of the heat exchange plates 100 in each layer are the same, and the upper heat exchange plate 100 is rotated 90° and placed on the lower layer to ensure that the flow disturbing structures 103 appear at the top and bottom of each heat exchange channel 200 in turn, as Figure 12 shown. The advantage of this layout is that the concave structures (the flow disturbing grooves 101a and the flow disturbing 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 heat exchange plates 100 are concave at a certain place at the same time, resulting in an increase in resistance, or convex at the same time, resulting in the inability to form an effective longitudinal vortex at that place. It can be understood that the words indicating directions in this embodiment are all defined in the directions of Figure 12 , only for the convenience of expression, and do not have other specific meanings.

[0097] Similarly, 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 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 vertically arranged with the basic protrusions 102, and the basic grooves 101b are formed as basic protrusions 102 on the other heat exchange surface of the same plate body 101.

[0098] In some embodiments, the plate body 101 is integrally formed and connected with the basic protrusion 102 and the flow disturbing structure 103 respectively, which improves the overall strength of the heat exchange plate 100.

[0099] As Figure 24 shown, a second aspect of the present invention provides a heat exchanger 1000, which includes a plurality of heat exchange plates 100 in any one of the above embodiments. 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 defined 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] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0102] The foregoing description of the disclosed embodiments enables those skilled in the art to practice or use the present invention. Various modifications to these embodiments will be readily 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. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0103] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0104] The preferred embodiments of the present invention disclosed above are only used to assist in explaining the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments shown. Obviously, many modifications and variations can be made according to the content of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A heat exchange plate (100), characterized in that, Comprising: A plate body (101), on at least one surface of which a plurality of basic protrusions (102) are convexly provided; And At least one flow disturbing structure (103), which is convexly provided on at least one surface of the plate body (101), and the flow disturbing structure (103) and the basic protrusions (102) are arranged in different regions on the surface of the plate body (101); Wherein: among the flow disturbing structure (103) and the basic protrusions (102) convexly provided on the same surface of the plate body (101), the distance between the vertex or top surface of the flow disturbing 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).

2. The heat exchange plate (100) according to claim 1, wherein 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 flow disturbing structure (103) includes at least one of a spherical protrusion, a tetrahedral protrusion, and a capsule protrusion.

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 respectively arranged in an array in the heat exchange channel (200).

4. The heat exchange plate (100) according to claim 3, wherein, The length directions of the arrays formed by the same type of the basic protrusions (102) are respectively inclined 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 any type of array of the basic protrusions (102) and the length direction of the heat exchange channel: 20° < α < 70°.

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

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

8. The heat exchange plate (100) according to claim 6, wherein, When the flow disturbing structure (103) includes a tetrahedral protrusion, the front inclination angle β of the tetrahedral protrusion in the flow disturbing structure (103) is 5° < β < 20°.

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

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

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

13. The heat exchange plate (100) according to any one of claims 1-12, characterized in that, A partition rib plate (104) is further arranged on the plate body (101), and the partition rib plate (104) is used for partitioning 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) as described in any one of claims 1-13; 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 defined between every two adjacent heat exchange plates (100).

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