Reciprocating multi-baffling-channel heat exchange plate with concave surface and convex surface

Abstract

The invention provides a concave-convex surface reciprocating multi-baffle flow channel heat exchange plate, and relates to the field of heat exchange plates, the concave-convex surface reciprocating multi-baffle flow channel heat exchange plate comprises a plate body, the plate body is jointly composed of a main plate and an auxiliary plate, a plurality of mounting lugs are symmetrically arranged on the side walls of the main plate and the auxiliary plate in pairs, and a refrigerant air inlet is formed in the upper end of the plate body. According to the invention, disturbance of in-plate refrigerants and out-plate cooling water and air can be enhanced simultaneously, the heat exchange time of in-plate and out-plate fluids can be prolonged, and the heat transfer characteristic can be enhanced. The concave-convex surface reciprocating multi-baffling flow channel is formed in the plate body, the retention time of a refrigerant in the heat exchange plate is prolonged due to bending of a flowing path, heat exchange can be more sufficiently carried out with the wall of the heat exchange plate and fluid outside the plate, the condensation heat transfer efficiency is greatly improved, and the heat exchange efficiency is improved. And disturbance of the circular welding spots and the built-in inclined plate to flowing of the refrigerant promotes a boundary layer to be damaged, the turbulence degree is enhanced, the heat transfer coefficient is remarkably increased, and then the heat transfer and mass transfer characteristics of the whole heat exchange plate are optimized.

Description

Technical Field

[0001] The present invention relates to the field of heat exchange plates, and particularly to a concave-convex surface reciprocating multi-fold flow channel heat exchange plate. Background Art

[0002] In today's industry and energy, heat exchange technology occupies a crucial position and is widely used in many industries such as chemical engineering, HVAC, power, food processing, etc. With the continuous growth of global energy demand and the increasing requirements for energy utilization efficiency, traditional heat exchange equipment has gradually exposed many limitations and is difficult to meet the stringent requirements of modern industrial production and energy conservation and emission reduction.

[0003] The traditional heat exchange plate has a relatively single structural form, mostly using a flat or simple concave-convex surface design, and its flow channel structure is usually a straight line or a simple curved shape. The traditional flat structure has obvious defects in the heat exchange process. The flow state of the fluid in the flow channel is relatively stable, and the boundary layer is easy to form and continuously thicken, resulting in the difficulty of breaking through the heat transfer efficiency. Moreover, it can only enhance the heat transfer performance on the refrigerant side inside the heat exchange plate, and has little impact on the flow disturbance and heat transfer performance on the air side outside the heat exchange plate. The traditional concave-convex surface heat exchange plate also has problems such as uneven fluid distribution, insufficient heat exchange between the fluid inside the plate and the fluid outside the plate, and incomplete wetting of the sprayed water. In the application scenario where the refrigerant is used as the heat exchange medium, the traditional heat exchange plate cannot make full use of the refrigerant for sufficient heat exchange, and the heat transfer process is not sufficient, so that the refrigeration or heating system needs to consume more energy to maintain the set temperature conditions, which not only increases the operating cost but also causes greater energy pressure on the environment.

[0004] In addition, the traditional heat exchange plate also faces many challenges in the manufacturing process. Its assembly process often relies on complex jigs and high-precision processing techniques to ensure the accurate docking and fixation of each component and solder joint, which not only makes the production efficiency low but also requires a high skill level of the operators, and it is easy to cause uneven product quality due to human factors.

[0005] Furthermore, the traditional heat exchange plate is less convenient for installation and maintenance in actual use. When installing the heat exchange plate group, due to the lack of a convenient combination and positioning structure, a large amount of time and manpower are required for precise adjustment and fixation, increasing the engineering construction period and cost. During the operation of the equipment, once a certain heat exchange plate fails or needs to be cleaned and maintained, the traditional structure often requires the disassembly of the entire heat exchange plate group, with complex operations and easy damage to other normal components, resulting in an extended equipment downtime and seriously affecting the continuity of production or use.

[0006] Therefore, it is necessary to provide a new concave-convex surface reciprocating multi-fold flow channel heat exchange plate to solve the above technical problems. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a concave-convex surface reciprocating multi-fold flow channel heat exchange plate.

[0008] A concave-convex surface reciprocating multi-fold flow channel heat exchange plate provided by the present invention includes: a plate body, the plate body is jointly composed of a main board and a sub-board, a plurality of mounting ears are symmetrically arranged in pairs on the side walls of the main board and the sub-board, a refrigerant inlet is provided at the upper end of the plate body, and a refrigerant liquid outlet is provided at the lower end of the plate body; an efficient flow channel mechanism, which includes a plurality of solder joints, and a plurality of the solder joints are all arranged between the main board and the sub-board, a plurality of welding rods are arranged between the main board and the sub-board, a reciprocating multi-fold flow channel is formed between the plurality of solder joints and the plurality of welding rods, a plurality of built-in inclined plates are arranged inside the reciprocating multi-fold flow channel, and two adjacent built-in inclined plates are arranged in reverse inclination.

[0009] Preferably, top seats are provided on the upper and lower side walls of the main board, alignment seats are provided on the upper and lower side walls of the sub-board, the two top seats and the two alignment seats are symmetrically arranged, sockets are provided at the lower ends of the two top seats, plugs are provided at the lower ends of the two alignment seats, the two plugs are respectively slidably connected to the two sockets, side cavities are provided at both ends of the two sockets, bayonet openings are provided on the side walls of both sides of the two plugs, and locking components are provided in the plurality of side cavities.

[0010] Preferably, the locking component includes a built-in block, the built-in block is fixedly connected to the inner wall of the side cavity, a resisting rod is slidably connected to the built-in block, one end of the resisting rod is designed with an inclined head, a pinching piece is provided at the other end of the resisting rod, a spring is sleeved on the resisting rod, one end of the spring is connected to the built-in block, and the other end of the spring is connected to the pinching piece.

[0011] Preferably, a plurality of positioning convex points are provided at the edge position of the main board, a plurality of positioning holes are symmetrically provided at the edge position of the sub-board, and the plurality of positioning convex points are respectively slidably connected to the plurality of positioning holes.

[0012] Preferably, a plurality of horizontally arranged fins are provided on one side surface of the main board, a plurality of stabilizing frames are provided on one side surface of the sub-board, the plurality of stabilizing frames are respectively aligned with the plurality of horizontally arranged fins, heat conducting tubes are provided on the plurality of solder joints, a plurality of main convex buckles are equidistantly arranged on one side wall of the horizontally arranged fins, a plurality of sub-convex buckles are equidistantly arranged on the side wall of the stabilizing frame, the plurality of main convex buckles are slidably connected to the plurality of heat conducting tubes on the side wall of the main board, and the sub-convex buckles are slidably connected to the plurality of heat conducting tubes on the side wall of the sub-board.

[0013] Preferably, two distance control columns are provided on the outer wall of one end of the sub-board, and two distance control tubes are provided on the board wall of one end of the main board.

[0014] Preferably, a hidden horizontal pipe is fixedly connected to the alignment seat. An internal shaft is rotatably connected inside the hidden horizontal pipe. Adjusting blocks are provided at both ends of the internal shaft. Slide rods are fixedly connected to both adjusting blocks. The two slide rods are respectively slidably connected to the tube walls at both ends of the hidden horizontal pipe. Bent locking pieces are fixedly connected to one ends of the two slide rods. Threads with opposite directions are provided at both ends of the internal shaft. Threaded ports are provided at the lower ends of the two adjusting blocks. The two adjusting blocks are respectively threadedly connected to both ends of the internal shaft.

[0015] Preferably, a main gear is fixedly connected to the middle position of the internal shaft. A short shaft is rotatably connected to the tube wall of the hidden horizontal pipe. A sub-gear is fixedly connected to the lower end of the short shaft. Both the sub-gear and the main gear are bevel gears. The sub-gear and the main gear are meshed with each other. A turntable is installed and connected to the top end of the short shaft.

[0016] Compared with the related art, a concave-convex surface reciprocating multi-fold flow channel heat exchange plate provided by the present invention has the following beneficial effects:

[0017] 1. After the main board and the sub-board are combined in the present invention, welding treatment is performed on them, and hydraulic or pneumatic blowing is used to accurately form a reciprocating multi-fold flow channel inside the plate body. The refrigerant flows in the reciprocating multi-fold flow channel, and the tortuous path thereof prolongs the residence time of the refrigerant in the heat exchange plate. Compared with the traditional heat exchange plate, it can exchange heat with the heat exchange plate wall and the fluid outside the plate more fully, greatly improving the condensation heat transfer efficiency. Moreover, the circular solder joints and the internal inclined plate disturb the flow of the refrigerant, promoting the destruction of the boundary layer and enhancing the degree of turbulence, significantly increasing the heat transfer coefficient, thereby optimizing the heat and mass transfer characteristics of the entire heat exchange plate, achieving more efficient heat transfer under the same working conditions, reducing energy consumption and improving energy utilization rate;

[0018] 2. In the present invention, through the ingenious cooperation of components such as inserting blocks, abutting rods, and springs between the main board and the sub-board, rapid and precise combination is achieved, without cumbersome alignment and complex fixing procedures, greatly simplifying the assembly operation before welding. This not only effectively shortens the production cycle of a single heat exchange plate, reduces labor costs and time costs, but also reduces quality problems caused by improper assembly due to the simplicity and stability of the combination process, which is beneficial to improving product consistency and the qualified product rate;

[0019] 3. The present invention constructs a stable and compact heat exchange plate structure by connecting the horizontally arranged fins and the stabilizing frame through the main convex buckle, the secondary convex buckle and the heat conduction pipe, and precisely controlling the distance between the plate bodies by the distance control column and the distance control pipe. This structural design enables the heat exchange plate to maintain good integrity and stability when subjected to fluid impact, pressure change and temperature fluctuation. On the one hand, it avoids the adverse effects of component loosening or deformation on the heat exchange performance, ensuring long-term stable and reliable operation. On the other hand, multiple fins distributed between the two plate bodies can effectively increase the heat exchange between the flowing spray circulating water and the heat exchange plate wall, so as to better absorb the heat of the internal refrigerant;

[0020] 4. The present invention realizes the rapid and firm locking and unlocking between the plate bodies through the linkage of the turntable, the gear transmission and the sliding rod bending lock piece. During the installation process of the heat exchange plate group, it is convenient for the rapid splicing and combination of multiple plate bodies, reducing the workload and difficulty of on-site installation and improving the installation efficiency. During the equipment maintenance stage, a single plate body can be easily disassembled, replaced or repaired without large-scale disassembly of the entire heat exchange plate group, greatly facilitating the daily maintenance and fault handling work, effectively reducing the operation and maintenance cost and time cost of the equipment, and improving the availability and maintainability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 One of the structural schematic diagrams of a preferred embodiment provided by the present invention;

[0022] Figure 2 Two of the structural schematic diagrams of a preferred embodiment provided by the present invention;

[0023] Figure 3 For Figure 2 The shown planar structural schematic diagram;

[0024] Figure 4 For Figure 3 The structural schematic diagram of the A position shown;

[0025] Figure 5 For Figure 3 The structural schematic diagram of the B position shown;

[0026] Figure 6 For Figure 2 The structural schematic diagram of the C position shown;

[0027] Figure 7 For Figure 5 The structural schematic diagram of the D position shown.

[0028] Markings in the figure: 1. Plate body; 11. Main board; 12. Sub-board; 2. Mounting ear; 3. Refrigerant inlet; 31. Refrigerant liquid outlet; 4. Solder joint; 41. Welding rod; 42. Built-in inclined plate; 5. Top seat; 51. Alignment seat; 52. Insert block; 53. Side cavity; 54. Built-in block; 55. Pushing rod; 56. Pinching piece; 57. Spring; 58. Positioning bump; 6. Horizontal fin; 61. Stabilizing frame; 62. Heat conduction tube; 63. Main convex buckle; 64. Sub-convex buckle; 7. Spacing control column; 71. Spacing control tube; 8. Hidden horizontal tube; 81. Built-in shaft; 82. Adjusting block; 83. Slide bar; 84. Bent locking piece; 9. Main gear; 91. Short shaft; 92. Sub-gear; 93. Turntable. Detailed implementation mode

[0029] The present invention will be further described below in conjunction with the accompanying drawings and the implementation mode.

[0030] Please refer to Figures 1 to 7 , a concave-convex surface reciprocating multi-fold flow channel heat exchange plate includes: a plate body 1, the plate body 1 is jointly composed of a main board 11 and a sub-board 12, and a plurality of mounting ears 2 are symmetrically arranged in pairs on the side walls of the main board 11 and the sub-board 12. A refrigerant inlet 3 is provided at the upper end of the plate body 1, and a refrigerant liquid outlet 31 is provided at the lower end of the plate body 1; an efficient flow channel mechanism, including a plurality of solder joints 4, and a plurality of solder joints 4 are all arranged between the main board 11 and the sub-board 12. A plurality of welding rods 41 are arranged between the main board 11 and the sub-board 12, and a reciprocating multi-fold flow channel is formed between the plurality of solder joints 4 and the plurality of welding rods 41. A plurality of built-in inclined plates 42 are arranged inside the reciprocating multi-fold flow channel, and two adjacent built-in inclined plates 42 are inclined in opposite directions.

[0031] In the specific implementation process, as Figure 3 and Figure 5 shown, top seats 5 are provided on the upper and lower side walls of the main board 11, alignment seats 51 are provided on the upper and lower side walls of the sub-board 12, the two top seats 5 and the two alignment seats 51 are symmetrically arranged, sockets are provided at the lower ends of the two top seats 5, insert blocks 52 are provided at the lower ends of the two alignment seats 51, the two insert blocks 52 are respectively slidably connected to the two sockets, side cavities 53 are provided at both ends of the two sockets, bayonets are provided on the side walls of both sides of the two insert blocks 52, and locking components are provided in a plurality of side cavities 53.

[0032] It should be noted that: the insert blocks 52 at the upper and lower ends of the sub-board 12 are respectively slidably inserted into the two sockets at the upper and lower ends of the main board 11 in advance until one end of the two pushing rods 55 slides into the two bayonets, so as to realize the quick combination of the main board 11 and the sub-board 12, so as to facilitate the subsequent direct welding to form the solder joints 4 and the welding rods 41.

[0033] Refer to Figure 5As shown in the figure, the locking component includes a built-in block 54, which is fixedly connected to the inner wall of the side cavity 53. A resisting rod 55 is slidably connected to the built-in block 54. One end of the resisting rod 55 is designed with an inclined head, and a pinching piece 56 is provided at the other end of the resisting rod 55. A spring 57 is sleeved on the resisting rod 55. One end of the spring 57 is connected to the built-in block 54, and the other end of the spring 57 is connected to the pinching piece 56.

[0034] It should be noted that when the insertion block 52 slides to abut against the inclined heads of the two resisting rods 55, the two resisting rods 55 are driven to slide relative to the two built-in blocks 54, driving the two springs 57 to undergo elastic deformation;

[0035] When the inclined heads of the two resisting rods 55 move to coincide with the bayonets on the two side walls of the insertion block 52, the two springs 57 both recover elastic deformation, causing one end of the two resisting rods 55 to slide into the two bayonets, and the rapid combination of the main board 11 and the sub-board 12 can be realized.

[0036] Reference Figure 2 and Figure 3 As shown in the figure, a plurality of positioning bumps 58 are provided at the edge position of the main board 11, and a plurality of positioning holes are symmetrically provided at the edge position of the sub-board 12. The plurality of positioning bumps 58 are respectively slidably connected to the plurality of positioning holes.

[0037] It should be noted that by using the plurality of positioning bumps 58 and the plurality of positioning holes, the main board 11 and the sub-board 12 can be quickly aligned and combined.

[0038] Reference Figure 1 and Figure 2 As shown in the figure, a plurality of horizontally arranged fins 6 are provided on one side surface of the main board 11, and a plurality of stabilizing frames 61 are provided on one side surface of the sub-board 12. The plurality of stabilizing frames 61 are respectively aligned with the plurality of horizontally arranged fins 6. Heat conduction tubes 62 are provided on all of the plurality of solder joints 4. A plurality of main convex buttons 63 are equidistantly provided on one side side wall of the horizontally arranged fin 6, and a plurality of sub-convex buttons 64 are equidistantly provided on the side wall of the stabilizing frame 61. The plurality of main convex buttons 63 are slidably connected to the plurality of heat conduction tubes 62 on the side wall of the main board 11, and the sub-convex buttons 64 are slidably connected to the plurality of heat conduction tubes 62 on the side wall of the sub-board 12.

[0039] It should be noted that the plurality of main convex buttons 63 on the horizontally arranged fin 6 are respectively slidably inserted into the plurality of heat conduction tubes 62 on the side wall of the main board 11, and at the same time, the plurality of sub-convex buttons 64 on the stabilizing frame 61 are slidably inserted into the plurality of heat conduction tubes 62 on the other sub-board 12, and the combination of the plurality of horizontally arranged fins 6 and the stabilizing frames 61 between the two boards 1 is quickly completed.

[0040] Reference Figure 1 and Figure 3 As shown in the figure, two distance control columns 7 are provided on the outer wall of one end of the sub-board 12, and two distance control tubes 71 are provided on the board wall of one end of the main board 11.

[0041] It should be noted that: the two plate bodies 1 are brought close to each other for alignment, so that the two distance control columns 7 on one auxiliary plate 12 are simultaneously inserted into the distance control tubes 71 on one main plate 11, and the combination is quickly completed by cooperating with the multiple horizontally arranged fins 6 and the stabilizing frame 61 between the two plate bodies 1, ensuring that the multiple horizontally arranged fins 6 can be stably located between the two plate bodies 1.

[0042] Reference Figure 5 and Figure 7 As shown in the reference and, a hidden horizontal tube 8 is fixedly connected to the alignment seat 51. An internal shaft 81 is rotatably connected inside the hidden horizontal tube 8. Adjusting blocks 82 are provided at both ends of the internal shaft 81. Slide rods 83 are fixedly connected to both adjusting blocks 82. The two slide rods 83 are respectively slidably connected to the tube walls at both ends of the hidden horizontal tube 8. Bent locking pieces 84 are fixedly connected to one ends of the two slide rods 83. Threads with opposite directions are provided at both ends of the internal shaft 81. Threaded ports are provided at the lower ends of the two adjusting blocks 82. The two adjusting blocks 82 are respectively threadedly connected to both ends of the internal shaft 81.

[0043] It should be noted that: the rotation of the internal shaft 81 causes the two adjusting blocks 82 to drive the two slide rods 83 to slide simultaneously. One ends of the two slide rods 83 drive the two bent locking pieces 84 to move relatively and buckle the top seat 5, so that the locking can be quickly completed after ensuring that the two plate bodies 1 are tightly pressed, facilitating the combination of multiple plate bodies 1 to form a heat exchange plate group.

[0044] Reference Figure 1 and Figure 7 As shown in the reference and, a main gear 9 is fixedly connected to the middle position of the internal shaft 81. A short shaft 91 is rotatably connected to the tube wall of the hidden horizontal tube 8. A sub-gear 92 is fixedly connected to the lower end of the short shaft 91. Both the sub-gear 92 and the main gear 9 are bevel gears. The sub-gear 92 meshes with the main gear 9. A turntable 93 is installed and connected to the top end of the short shaft 91.

[0045] It should be noted that: rotating the turntable 93 causes it to drive the short shaft 91 to rotate. The sub-gear 92 at the lower end of the short shaft 91 drives the main gear 9 meshing with it to rotate simultaneously. The rotation of the main gear 9 can further drive the internal shaft 81 to rotate stably.

[0046] The working principle of a concave-convex surface reciprocating multi-fold flow channel heat exchange plate provided by the present invention is as follows: When welding the main board 11 and the sub-board 12, the insertion blocks 52 at the upper and lower ends of the sub-board 12 are respectively slid into the two insertion openings at the upper and lower ends of the main board 11 in advance. When the insertion blocks 52 slide to abut against the inclined heads of the two abutting rods 55, the two abutting rods 55 are driven to slide relative to the two built-in blocks 54, driving the two springs 57 to undergo elastic deformation. When the inclined heads of the two abutting rods 55 move to coincide with the clamping openings on the side walls of both sides of the insertion block 52, the two springs 57 both recover elastic deformation, causing one end of the two abutting rods 55 to slide into the two clamping openings, thus realizing the rapid combination of the main board 11 and the sub-board 12 to facilitate subsequent direct welding to form the solder joints 4 and the welding rods 41.

[0047] After the main board 11 and the sub-board 12 are combined, welding treatment is carried out on them, and they are blown up by hydraulic or pneumatic means, so that reciprocating multi-fold flow channels can be accurately formed inside the plate body 1. The refrigerant flows around the multiple circular solder joints 4 and flows along the reciprocating multi-fold flow channels formed by the slender welding rods 41. On the one hand, the flow process of the refrigerant is disturbed by the circular solder joints 4, and the cooperation of multiple built-in inclined plates 42 helps to strengthen heat transfer. On the other hand, compared with the traditional concave-convex plates, the refrigerant flows in the reciprocating multi-fold flow channels, effectively extending the residence time of the refrigerant in the heat exchange plate and further enhancing the condensation heat transfer of the refrigerant. The concave-convex surface reciprocating multi-fold flow channel heat exchange plate has better heat and mass transfer characteristics.

[0048] The multiple main convex buttons 63 on the horizontally arranged fins 6 are respectively slid into the multiple heat conduction tubes 62 on the side wall of the main board 11, and at the same time, the multiple sub-convex buttons 64 on the stabilizing frame 61 are slid into the multiple heat conduction tubes 62 on another sub-board 12. The two plate bodies 1 are brought closer and aligned, so that the two distance control columns 7 on one sub-board 12 are simultaneously inserted into the distance control tubes 71 on one main board 11, completing the rapid combination of the multiple horizontally arranged fins 6 and the stabilizing frame 61 between the two plate bodies 1. The multiple horizontally arranged fins 6 distributed between the two plate bodies 1 can effectively increase the heat exchange between the flowing spray circulating water and the heat exchange plate wall, so as to better absorb the heat of the internal refrigerant.

[0049] After the two plate bodies 1 are brought closer, rotate the turntable 93 to drive the short shaft 91 to rotate. The sub-gear 92 at the lower end of the short shaft 91 drives the main gear 9 meshing with it to rotate simultaneously. The main gear 9 drives the built-in shaft 81 to rotate stably, so that the two adjusting blocks 82 drive the two sliding rods 83 to slide simultaneously. One end of the two sliding rods 83 drives the two bent locking pieces 84 to move relatively and buckle the top seat 5, thus realizing rapid locking after ensuring that the two plate bodies 1 are tightly abutted, facilitating the combination of multiple plate bodies 1 to form a heat exchange plate group and providing convenience for the installation and maintenance of the heat exchange plate group.

[0050] The above are only embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A concave-convex reciprocating multi-bend flow channel heat exchange plate, characterized in that: include: A plate body (1), the plate body (1) being composed of a main plate (11) and a sub-plate (12), a plurality of mounting ears (2) being symmetrically arranged in pairs on the side walls of the main plate (11) and the sub-plate (12), a refrigerant air inlet (3) being arranged at the upper end of the plate body (1), and a refrigerant liquid outlet (31) being arranged at the lower end of the plate body (1); A high-efficiency flow channel mechanism comprises a plurality of welding points (4), wherein the plurality of welding points (4) are arranged between a main plate (11) and a sub-plate (12), a plurality of welding rods (41) are arranged between the main plate (11) and the sub-plate (12), a reciprocating multi-bend flow channel is formed between the plurality of welding points (4) and the plurality of welding rods (41), a plurality of built-in inclined plates (42) are arranged inside the reciprocating multi-bend flow channel, and two adjacent built-in inclined plates (42) are arranged to be inclined in opposite directions.

2. The concave-convex reciprocating multi-bend flow channel heat exchange plate according to claim 1, characterized in that: The upper and lower side walls of the main board (11) are each provided with a top seat (5), the upper and lower side walls of the sub-board (12) are each provided with an alignment seat (51), the two top seats (5) are symmetrically arranged with the two alignment seats (51), the lower ends of the two top seats (5) are each provided with a socket, the lower ends of the two alignment seats (51) are each provided with an insert block (52), the two insert blocks (52) are respectively slidably connected with the two sockets, the two ends of the two sockets are each provided with a side cavity (53), the side walls of the two insert blocks (52) are each provided with a bayonet, and a plurality of the side cavities (53) are each provided with a locking assembly.

3. The concave-convex reciprocating multi-bend flow channel heat exchange plate according to claim 2, characterized in that: The locking assembly comprises a built-in block (54), the built-in block (54) is fixedly connected to the inner wall of the side cavity (53), a push rod (55) is slidably connected to the built-in block (54), one end of the push rod (55) is designed as an oblique head, the other end of the push rod (55) is provided with a pinch piece (56), a spring (57) is sleeved on the push rod (55), one end of the spring (57) is connected to the built-in block (54), and the other end of the spring (57) is connected to the pinch piece (56).

4. The concave-convex reciprocating multi-bend flow channel heat exchange plate according to claim 1, characterized in that: The main board (11) is provided with a plurality of positioning protrusions (58) at the board edge, and the sub-board (12) is symmetrically provided with a plurality of positioning holes at the board edge. The plurality of positioning protrusions (58) are respectively slidably connected to the plurality of positioning holes.

5. The concave-convex reciprocating multi-bend flow channel heat exchange plate according to claim 1, characterized in that: A plurality of transverse fins (6) are provided on one side plate surface of the main board (11), a plurality of stabilizing frames (61) are provided on one side plate surface of the auxiliary board (12), the plurality of stabilizing frames (61) are respectively aligned with the plurality of transverse fins (6), a plurality of welding points (4) are each provided with a heat conducting pipe (62), a plurality of main protruding buckles (63) are equidistantly provided on a side wall of one side of the transverse fin (6), a plurality of secondary protruding buckles (64) are equidistantly provided on a side wall of the stabilizing frame (61), the plurality of main protruding buckles (63) are slidably connected to the plurality of heat conducting pipes (62) on the side wall of the main board (11), and the secondary protruding buckles (64) are slidably connected to the plurality of heat conducting pipes (62) on the side wall of the auxiliary board (12).

6. The concave-convex reciprocating multi-bend flow channel heat exchange plate according to claim 1, characterized in that: Two distance control columns (7) are provided on the outer wall at one end of the auxiliary plate (12), and two distance control tubes (71) are provided on the plate wall at one end of the main plate (11).

7. The concave-convex reciprocating multi-bend flow channel heat exchange plate according to claim 2, characterized in that: A hidden transverse tube (8) is fixedly connected to the alignment seat (51), and a built-in shaft (81) is rotatably connected inside the hidden transverse tube (8). Adjustment blocks (82) are provided at both ends of the built-in shaft (81). Slide bars (83) are fixedly connected to the two adjustment blocks (82). The two slide bars (83) are respectively slidably connected to the tube walls at both ends of the hidden transverse tube (8). One end of the two slide bars (83) is fixedly connected to a curved locking piece (84). Threads in opposite directions are provided at both ends of the built-in shaft (81). Threaded openings are provided at the lower ends of the two adjustment blocks (82). The two adjustment blocks (82) are respectively threadedly connected to the two ends of the built-in shaft (81).

8. The concave-convex reciprocating multi-bend flow channel heat exchange plate according to claim 7, characterized in that: A main gear (9) is fixedly connected to the middle of the built-in shaft (81), a short shaft (91) is rotatably connected to the wall of the hidden transverse tube (8), a sub-gear (92) is fixedly connected to the lower end of the short shaft (91), the sub-gear (92) and the main gear (9) are both bevel gears, the sub-gear (92) and the main gear (9) are meshed with each other, and a rotating disk (93) is installed and connected to the top end of the short shaft (91).

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