A high-efficiency plate heat exchanger

Abstract

This invention discloses a high-efficiency plate heat exchanger, relating to the field of heat exchanger technology. The invention includes a base plate, with a mounting frame fixedly connected to the top of the base plate. A heat exchange plate body is fixedly connected to the inner wall of the mounting frame. A transmission pipe is fixedly inserted through the side of the mounting frame. A fluid extension device is provided on the inner wall of the transmission pipe. The fluid extension device includes multiple arc plates (first type) and two arc plates (second type). The arc surfaces of the multiple arc plates (first type) are fixedly connected to the inner wall of the transmission pipe, and the two arc plates (second type) are also fixedly connected to the inner wall of the transmission pipe. A rotating column passes through and rotates between the multiple arc plates (first type) and the two arc plates (second type). Through the fluid extension device, the interaction of the arc plates (first type) and arc plates (second type) causes the fluid to be blocked by the arc plates (first type) and arc plates (second type), thereby increasing the contact time between the fluid and the heat exchange plate body on the inner wall of the transmission pipe and ensuring heat exchange efficiency.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, specifically to a plate heat exchanger with high efficiency. Background Technology

[0002] High-efficiency plate heat exchangers utilize a series of tightly stacked metal plates to form flow channels. Fluid flows alternately between the plates, achieving efficient heat exchange. Plate heat exchangers are compact, have high heat transfer efficiency, and are easy to clean and maintain, making them widely used in heating, refrigeration, chemical, and food processing industries. Their flexible modular design allows for expansion or adjustment to meet different operating conditions.

[0003] Chinese patent CN220959741U discloses a plate heat exchanger, comprising two fixed plates with heat dissipation fins between them and a support rod between them. The support rod is divided into an upper support rod and a lower support rod. A pipe is fixedly installed between the two fixed plates, with one end of the pipe being an inlet and the other end being an outlet. A threaded hole is formed on the top of each fixed plate, and a threaded rod is inserted into the inner cavity of the threaded hole. The threaded rod is threadedly connected to the threaded hole. A slot is formed on the top of the upper support rod, allowing the threaded rod to be inserted into the slot. A sliding groove is formed on the inner side of each fixed plate. This patent facilitates the installation and disassembly of the plate heat exchanger, thereby improving the efficiency of installation and disassembly and making it more convenient for users.

[0004] However, current plate heat exchangers have the following problems: the fluid passes through the heat exchange plate body too quickly, especially in cold weather, reducing the heat exchange time between the water source and the heat source, resulting in insufficient heat transfer. Simultaneously, the fluid has limited time to achieve close contact with the heat exchange plate body through the transmission pipe, thus reducing heat exchange efficiency. Therefore, to increase the contact time between the fluid on the inner wall of the transmission pipe and the heat exchange plate body, ensuring heat exchange efficiency and comprehensive contact between the fluid and the heat exchange plate body, and to ensure a more uniform heat exchange process by increasing the time of close contact between the fluid through the transmission pipe and the heat exchange plate body, avoiding the formation of local hot or cold spots, we propose a high-efficiency plate heat exchanger. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a plate heat exchanger with high efficiency, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency plate heat exchanger, comprising a base plate, a mounting frame fixedly connected to the top of the base plate, a heat exchange plate body fixedly connected to the inner wall of the mounting frame, a transmission pipe fixedly passing through the side of the mounting frame, and a fluid extension device provided on the inner wall of the transmission pipe. The fluid extension device includes multiple arc plates one and two arc plates two. The arc surfaces of the multiple arc plates one are fixedly connected to the inner wall of the transmission pipe, and the two arc plates two are fixedly connected to the inner wall of the transmission pipe. The multiple arc plates one and the two arc plates two are staggered. A rotating column passes through and rotates between the multiple arc plates one and the two arc plates two. Multiple arc plates are fixedly connected to the outer wall of the rotating column. The two sides of the multiple arc plates are in contact with one of the arc plates one and one of the arc plates two. Multiple guide grooves are fixedly connected to the inner wall of the multiple arc plates. When fluid enters the inner wall of the transmission pipe, the fluid is blocked by the arc plates one and two. When the fluid flows, the fluid pushes the arc plates to drive the rotating column to rotate.

[0007] According to the above technical solution, the fluid extension device further includes two friction rings. The sides of the two friction rings are fixedly connected to the sides of two arc plates. Fixed blocks are fixedly connected to the inner walls of multiple arc plates. Friction wheels are rotatably connected to the sides of the fixed blocks. Rotating rods are fixedly connected to the sides of the friction wheels. Multiple flaps are fixedly connected to the outer walls of the rotating rods. The friction wheels are in contact with the friction rings. The outer walls of the rotating rods penetrate and are rotatably connected to the sides of the fixed blocks. When the arc plates rotate, they will drive the fixed blocks to rotate. The rotation of the fixed blocks will drive the friction wheels to rotate on the outer walls of the friction rings. Due to the interaction force between the friction wheels and the friction rings, the friction wheels will rotate. The rotation of the friction wheels will drive the rotating rods to rotate. The rotation of the rotating rods will drive the flaps to rotate.

[0008] According to the above technical solution, a temperature equalization device is provided between one of the arc plates and the second arc plate. The temperature equalization device includes a fixed cylinder, the two sides of which are fixedly connected between one of the arc plates and the second arc plate. Each of the arc plates has four long blocks that are slidably connected through it on its side. These long blocks are arranged in pairs. Each pair of long blocks has a hinge rod hinged to its side. A T-shaped push block is hinged to the end of the hinge rod away from the long block. Multiple baffles are fixedly connected to the outer wall of the fixed cylinder. A connecting plate is fixedly connected to the inner wall of the fixed cylinder, and a fixed barrel is fixedly connected to the side of the connecting plate. A spring is provided between the fixed barrel and the T-shaped push block. The side of the long block away from the hinge rod is set as an arc shape. The arc-shaped side of the long block is located on the displacement trajectory of the arc plate. When the arc plate rotates, it will abut against the arc surface of the long block, thereby causing the long block to push the T-shaped push block along the inner wall of the fixed cylinder towards the inner wall of the transmission pipe through the hinge rod. The movement of the T-shaped push block will push the fluid towards the inner wall of the transmission pipe.

[0009] According to the above technical solution, the temperature equalization device also protects the partition plate. The side of the partition plate is fixedly connected to the outer wall of the fixed cylinder. When the T-shaped pusher moves along the inner wall of the fixed cylinder towards the inner wall of the transmission pipe, the movement of the T-shaped pusher will drive the partition plate to move. The movement of the partition plate will divide the fluid into several segments and make close contact with the heat exchange plate body through the transmission pipe.

[0010] According to the above technical solution, an acceleration device is provided at the bottom of the long block. The acceleration device includes an L-shaped block whose top is fixedly connected to the bottom of the long block, a ring fixedly connected to the outer wall of the rotating column, and multiple abutment blocks fixedly connected to the side of the ring. The side of the multiple abutment blocks away from the ring is set as an arc, and the side of the L-shaped block is set as an arc. The arc side of the abutment block is located on the displacement trajectory of the arc side of the L-shaped block. When the rotating column rotates, it will drive the ring to rotate. The rotation of the ring will drive the abutment blocks to rotate. At the same time, when the long block moves, it will drive the L-shaped block to move. When the L-shaped block moves, the arc surface of the L-shaped block will abut the arc surface of the abutment block, thereby accelerating the rotation of the abutment block. The accelerated rotation of the abutment block will drive the ring to rotate faster, and the accelerated rotation of the ring will drive the rotating column to rotate faster.

[0011] This invention provides a plate heat exchanger with high efficiency. It has the following beneficial effects:

[0012] (1) The present invention, through the setting of the fluid extension device, makes the cooperation of the first arc plate and the second arc plate so that the fluid is blocked by the first arc plate and the second arc plate, thereby increasing the contact time between the fluid and the heat exchange plate body on the inner wall of the transmission pipe and ensuring heat exchange efficiency; at the same time, through the cooperation of the rotating column, the arc plate and the guide groove, the rotation of the arc plate will further increase the contact time between the fluid and the heat exchange plate body on the inner wall of the transmission pipe, thereby improving heat exchange efficiency; at the same time, through the cooperation of the arc plate, the friction ring, the fixed block, the friction wheel, the rotating rod and the flapping blade, the rotation of the rotating rod will drive the flapping blade to rotate, and the rotation of the flapping blade will agitate the fluid, ensuring that the fluid is in full contact with the heat exchange plate body.

[0013] (2) By setting up a temperature equalization device, the cooperation of the long block, the hinge rod and the T-shaped push block makes the movement of the T-shaped push block push the fluid toward the inner wall of the transmission pipe, thereby increasing the time for the fluid to be in close contact with the heat exchange plate body through the transmission pipe; at the same time, by cooperating with the partition plate and the T-shaped push block, the movement of the partition plate will divide the fluid into several segments and make close contact with the heat exchange plate body through the transmission pipe, ensuring that the fluid can be in uniform contact with the surface of the heat exchange plate body, thereby ensuring a more uniform heat exchange process and avoiding the formation of local hot spots or cold spots.

[0014] (3) By setting up an acceleration device, the L-shaped block, the ring and the contact block cooperate so that the accelerated rotation of the ring will drive the rotating column to rotate faster, the accelerated rotation of the rotating column will drive the arc plate to rotate faster, and the accelerated rotation of the arc plate will avoid the problem of the fluid being blocked by the arc plate, thus preventing the flow rate from slowing down. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the entire invention;

[0016] Figure 2 This is a schematic diagram of the structure at the transmission tube of the present invention;

[0017] Figure 3 This is a schematic diagram of one part of the arc plate structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure at the partition plate of the present invention;

[0019] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point A in the middle;

[0020] Figure 6 This is a schematic diagram of the structure of the temperature equalization device of the present invention. Figure 1 ;

[0021] Figure 7 This is a schematic diagram of the structure of the temperature equalization device of the present invention. Figure 2 ;

[0022] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point B.

[0023] In the diagram: 1. Base plate; 2. Mounting frame; 3. Heat exchange plate body; 4. Transmission pipe; 5. Fluid extension device; 51. Arc plate one; 52. Arc plate two; 53. Rotating column; 54. Arc plate; 55. Guide groove; 56. Friction ring; 57. Fixing block; 58. Friction wheel; 59. Rotating rod; 510. Flip plate blade; 6. Temperature equalization device; 61. Fixed cylinder; 62. Long block; 63. Hinge rod; 64. T-shaped push block; 65. Baffle; 66. Fixed cylinder; 67. Spring; 68. Connecting plate; 69. Dividing plate; 7. Acceleration device; 71. L-shaped block; 72. Circular ring; 73. Contact block. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Please see Figures 1-8 One embodiment of the present invention is as follows: a high-efficiency plate heat exchanger includes a base plate 1, a mounting frame 2 fixedly connected to the top of the base plate 1, a heat exchange plate body 3 fixedly connected to the inner wall of the mounting frame 2, a transmission pipe 4 fixedly passing through the side of the mounting frame 2, and a fluid extension device 5 provided on the inner wall of the transmission pipe 4. The fluid extension device 5 includes multiple arc plates 51 and two arc plates 52. The arc surfaces of the multiple arc plates 51 are all fixedly connected to the inner wall of the transmission pipe 4, and the two arc plates 52 are all fixedly connected to the inner wall of the transmission pipe 4. The multiple arc plates 51 and the two arc plates 52 are staggered. A rotating column 53 passes through and rotates between the two arc plates 52. Multiple arc plates 54 are fixedly connected to the outer wall of the rotating column 53. The two sides of the multiple arc plates 54 are in contact with one of the arc plates 51 and the arc plate 52. Multiple guide grooves 55 are fixedly connected to the inner wall of each of the multiple arc plates 54. With the above structure, the fluid will be blocked by the arc plates 51 and 52, thereby increasing the contact time between the fluid and the heat exchange plate body 3 on the inner wall of the transmission pipe 4, ensuring heat exchange efficiency. The rotation of the arc plates 54 will further increase the contact time between the fluid and the heat exchange plate body 3 on the inner wall of the transmission pipe 4, thereby improving the heat exchange efficiency.

[0026] The fluid extension device 5 also includes two friction rings 56, the sides of which are fixedly connected to the sides of two arc plates 52. The inner walls of multiple arc plates 54 are fixedly connected to fixing blocks 57. Friction wheels 58 are rotatably connected to the sides of fixing blocks 57. Rotating rods 59 are fixedly connected to the sides of friction wheels 58. Multiple flaps 510 are fixedly connected to the outer wall of rotating rods 59. Friction wheels 58 are in contact with friction rings 56. The outer wall of rotating rods 59 is penetrated and rotatably connected to the sides of fixing blocks 57. With the above structure, the rotation of rotating rods 59 will drive flaps 510 to rotate. The rotation of flaps 510 will agitate the fluid, ensuring that the fluid is in full contact with the heat exchange plate body 3.

[0027] A temperature equalization device 6 is provided between one of the arc plates 51 and 52. The temperature equalization device 6 includes a fixed cylinder 61. The two sides of the fixed cylinder 61 are fixedly connected between one of the arc plates 51 and 52. Long blocks 62 are slidably connected through the sides of one of the arc plates 51 and 52. There are four long blocks 62, arranged in pairs. Each pair of long blocks 62 has a hinge rod 63 hinged to the side of its side. A T-shaped push block 64 is hinged to the end of the hinge rod 63 away from the long block 62. The outer wall of the fixed cylinder 61 is fixedly connected to... There are multiple baffles 65. A connecting plate 68 is fixedly connected to the inner wall of the fixed cylinder 61. A fixed barrel 66 is fixedly connected to the side of the connecting plate 68. A spring 67 is provided between the fixed barrel 66 and the T-shaped push block 64. The side of the long block 62 away from the hinge rod 63 is set as an arc. The arc side of the long block 62 is located on the displacement trajectory of the arc plate 54. With the above structure, the movement of the T-shaped push block 64 will push the fluid towards the inner wall of the transmission pipe 4, thereby increasing the time for the fluid to be in close contact with the heat exchange plate body 3 through the transmission pipe 4.

[0028] The temperature equalization device 6 also protects the partition plate 69. The side of the partition plate 69 is fixedly connected to the outer wall of the fixed cylinder 61. With the above structure, the movement of the partition plate 69 will divide the fluid into several segments and make close contact with the heat exchange plate body 3 through the transmission pipe 4, ensuring that the fluid can contact the surface of the heat exchange plate body 3 evenly, thereby ensuring a more uniform heat exchange process and avoiding the formation of local hot spots or cold spots.

[0029] In use, when the fluid enters the inner wall of the transmission pipe 4, it is blocked by the first arc plate 51 and the second arc plate 52, thereby increasing the contact time between the fluid and the heat exchange plate body 3 on the inner wall of the transmission pipe 4, ensuring heat exchange efficiency. When the fluid flows, it pushes the arc plate 54 to drive the rotating column 53 to rotate. The rotation of the arc plate 54 further increases the contact time between the fluid and the heat exchange plate body 3 on the inner wall of the transmission pipe 4, thereby improving heat exchange efficiency. When the arc plate 54 rotates, it drives the fixed block 57 to rotate. The rotation of the fixed block 57 drives the friction wheel 58 to rotate on the outer wall of the friction ring 56. Due to the interaction force between the friction wheel 58 and the friction ring 56, the friction wheel 58 will rotate. The rotation of the friction wheel 58 will drive the rotating rod 59 to rotate. The rotation of the rotating rod 59 will drive the flapper blade 510 to rotate. The rotation of the flapper blade 510 will agitate the fluid, ensuring that the fluid is in full contact with the heat exchange plate body 3.

[0030] When the arc plate 54 rotates, it abuts against the arc surface of the long block 62, causing the long block 62 to push the T-shaped pusher 64 along the inner wall of the fixed cylinder 61 towards the inner wall of the transmission pipe 4 via the hinge rod 63. The movement of the T-shaped pusher 64 pushes the fluid towards the inner wall of the transmission pipe 4, thereby increasing the time for the fluid to have close contact with the heat exchange plate body 3 through the transmission pipe 4. While the T-shaped pusher 64 moves along the inner wall of the fixed cylinder 61 towards the inner wall of the transmission pipe 4, the movement of the T-shaped pusher 64 also drives the partition plate 69 to move. The movement of the partition plate 69 divides the fluid into several segments and ensures close contact with the heat exchange plate body 3 through the transmission pipe 4, ensuring that the fluid can contact the surface of the heat exchange plate body 3 evenly, thereby ensuring a more uniform heat exchange process and avoiding the formation of local hot or cold spots.

[0031] Please see Figures 1-8 Based on the above embodiments, in another embodiment of the present invention, an acceleration device 7 is provided at the bottom of the long block 62. The acceleration device 7 includes an L-shaped block 71 whose top is fixedly connected to the bottom of the long block 62, a ring 72 fixedly connected to the outer wall of the rotating column 53, and a plurality of abutting blocks 73 fixedly connected to the side of the ring 72. The side of the plurality of abutting blocks 73 away from the ring 72 is set as an arc, and the side of the L-shaped block 71 is set as an arc. The arc side of the abutting block 73 is located on the displacement trajectory of the arc side of the L-shaped block 71. With the above structure, the accelerated rotation of the ring 72 will drive the rotating column 53 to accelerate, and the accelerated rotation of the rotating column 53 will drive the arc plate 54 to accelerate. The accelerated rotation of the arc plate 54 will avoid the problem of the fluid being blocked by the arc plate 54, thus causing the flow rate to be slow.

[0032] In use, when the rotating column 53 rotates, it drives the ring 72 to rotate. The rotation of the ring 72 drives the contact block 73 to rotate. At the same time, when the long block 62 moves, it drives the L-shaped block 71 to move. When the L-shaped block 71 moves, the arc surface of the L-shaped block 71 will abut against the arc surface of the contact block 73, thereby accelerating the rotation of the contact block 73. The accelerated rotation of the contact block 73 will drive the ring 72 to rotate faster. The accelerated rotation of the ring 72 will drive the rotating column 53 to rotate faster. The accelerated rotation of the rotating column 53 will drive the arc plate 54 to rotate faster. The accelerated rotation of the arc plate 54 will prevent the fluid from being blocked by the arc plate 54, thus avoiding the problem of slow flow rate.

[0033] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency plate heat exchanger, comprising a base plate (1), characterized in that: A mounting frame (2) is fixedly connected to the top of the base plate (1). A heat exchange plate body (3) is fixedly connected to the inner wall of the mounting frame (2). A transmission pipe (4) is fixedly passed through the side of the mounting frame (2). A fluid extension device (5) is provided on the inner wall of the transmission pipe (4). The fluid extension device (5) includes multiple arc plates one (51) and two arc plates two (52). The arc surfaces of the multiple arc plates one (51) are all fixedly connected to the inner wall of the transmission pipe (4). The two arc plates two (52) are all fixedly connected to the inner wall of the transmission pipe (4). Fixedly connected to the inner wall of the transmission pipe (4), multiple arc plates one (51) and two arc plates two (52) are staggered. A rotating column (53) passes through and rotates between multiple arc plates one (51) and two arc plates two (52). Multiple arc plates (54) are fixedly connected to the outer wall of the rotating column (53). The two sides of multiple arc plates (54) are in contact with one of the arc plates one (51) and one of the arc plates two (52). Multiple guide grooves (55) are fixedly connected to the inner wall of multiple arc plates (54).

2. The plate heat exchanger with high-efficiency heat exchange according to claim 1, characterized in that: The fluid extension device (5) also includes two friction rings (56), the sides of which are fixedly connected to the sides of two arc plates (52), and the inner walls of multiple arc plates (54) are fixedly connected to fixed blocks (57). The sides of the fixed blocks (57) are rotatably connected to friction wheels (58), the sides of the friction wheels (58) are fixedly connected to rotating rods (59), and the outer walls of the rotating rods (59) are fixedly connected to multiple flaps (510).

3. The plate heat exchanger with high efficiency heat exchange according to claim 2, characterized in that: The friction wheel (58) is in contact with the friction ring (56), and the outer wall of the rotating rod (59) is rotatably connected to the side of the fixed block (57).

4. The plate heat exchanger with high efficiency heat exchange according to claim 1, characterized in that: A temperature equalization device (6) is provided between one of the arc plates (51) and the second arc plate (52). The temperature equalization device (6) includes a fixed cylinder (61). The two sides of the fixed cylinder (61) are fixedly connected between one of the arc plates (51) and the second arc plate (52). A long block (62) is slidably connected through the side of one of the arc plates (51) and the second arc plate (52). There are four long blocks (62), arranged in pairs. Each pair of long blocks has a long block (62) connected through and slidably. The sides of the block (62) are all hinged with hinge rods (63), and the ends of the hinge rods (63) away from the long block (62) are hinged with T-shaped push blocks (64). The outer wall of the fixed cylinder (61) is fixedly connected with multiple baffles (65), the inner wall of the fixed cylinder (61) is fixedly connected with a connecting plate (68), the side of the connecting plate (68) is fixedly connected with a fixed barrel (66), and a spring (67) is provided between the fixed barrel (66) and the T-shaped push block (64).

5. A high-efficiency heat exchange plate heat exchanger according to claim 4, characterized in that: The temperature equalization device (6) also protects the partition plate (69), the side of which is fixedly connected to the outer wall of the fixed cylinder (61).

6. The plate heat exchanger with high efficiency heat exchange according to claim 4, characterized in that: The side of the long block (62) away from the hinge rod (63) is set to be arc-shaped, and the arc-shaped side of the long block (62) is located on the displacement trajectory of the arc plate (54).

7. A high-efficiency heat exchange plate heat exchanger according to claim 4, characterized in that: An acceleration device (7) is provided at the bottom of the long block (62). The acceleration device (7) includes an L-shaped block (71) whose top is fixedly connected to the bottom of the long block (62). A ring (72) is fixedly connected to the outer wall of the rotating column (53). A plurality of abutting blocks (73) are fixedly connected to the side of the ring (72).

8. A high-efficiency heat exchange plate heat exchanger according to claim 7, characterized in that: The side of the multiple contact blocks (73) away from the ring (72) is set as arc, the side of the L-shaped block (71) is set as arc, and the arc side of the contact block (73) is located on the displacement trajectory of the arc side of the L-shaped block (71).

Images