Efficient and energy-saving plate type heat exchanger unit

Abstract

The utility model discloses an efficient and energy-saving plate type heat exchanger unit, and relates to the technical field of plate type heat exchanger units. The heat exchanger comprises a fixing plate, one end of the fixing plate is fixedly connected with two sliding rods, one ends of the two sliding rods are slidably connected with a mounting plate, a plurality of first heat exchange plates and a plurality of second heat exchange plates are arranged between the fixing plate and the mounting plate, and the first heat exchange plates and the second heat exchange plates are arranged alternately. The first heat exchange plate and the second heat exchange plate are both slidably connected with the sliding rods, one end of the mounting plate is fixedly connected with a plurality of pull rods, the pull rods are slidably connected with the fixing plate, one ends of the pull rods are jointly provided with a connecting frame, the middle of the connecting frame is rotatably connected with a sleeve, and one end of the fixing plate is fixedly connected with a threaded column. The sleeve is in threaded connection with the threaded column; through the design of the pull rod and the connecting frame, the first heat exchange plate and the second heat exchange plate can bear uniform pressure in the clamping process.

Description

Technical Field

[0001] This utility model relates to the technical field of plate heat exchanger units, specifically a high-efficiency and energy-saving plate heat exchanger unit. Background Technology

[0002] Plate heat exchangers are mainly composed of a series of parallel metal plates. These plates are connected by sealing gaskets to form numerous small and uniform flow channels. The hot and cold media flow in opposite directions in the channels formed between adjacent plates, and heat energy is transferred through the plates, thereby achieving heat exchange.

[0003] A search revealed a Chinese patent with publication number CN218895696U, which discloses a high-efficiency plate heat exchanger unit, including a rear side plate and a front side plate, with a plate assembly between the rear and front side plates. The rear and front side plates are fixedly connected by screws. The unit is characterized by a filter box located on the outer side of the front side plate, with a connecting cover installed on the outer side of the filter box via connecting bolts and fixing nuts. The filter box contains a filter screen. In this invention, the filter box does not require complete removal of the connecting bolts during disassembly. Simply loosen the connecting bolts slightly to separate the connecting cover from the filter box, allowing the filter box to be moved downwards to detach from the front side plate. After replacing the filter screen inside the filter box, move the filter box upwards so that the slots at both ends of the filter box engage with the connecting bolts. Tighten the connecting bolts to press the connecting cover against the filter box, completing the replacement without requiring complete disassembly of external equipment, thus facilitating maintenance.

[0004] In the above technology, although the design of connecting bolts makes the replacement of the filter screen more convenient, during the installation of the plates, multiple screws and nuts are needed to connect the front and rear plates together and clamp the plate assembly. However, due to the large number of screws, it is difficult for the workers to ensure that the tightening degree of each nut is consistent during the tightening process, which affects the sealing between the plates and the heat exchange efficiency.

[0005] Therefore, this utility model provides a high-efficiency and energy-saving plate heat exchanger unit. Utility Model Content

[0006] To address the problem of inconsistent tightness of nuts when installing heat exchange plates in existing plate heat exchanger units, the purpose of this invention is to provide a high-efficiency and energy-saving plate heat exchanger unit.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a high-efficiency and energy-saving plate heat exchanger unit, including a fixed plate, two sliding rods fixedly connected to one end of the fixed plate, an mounting plate slidably connected to one end of the two sliding rods, a plurality of first heat exchange plates and a plurality of second heat exchange plates arranged between the fixed plate and the mounting plate, and the first heat exchange plates and second heat exchange plates are alternately arranged. The first heat exchange plates and second heat exchange plates are both slidably connected to the sliding rods. A plurality of pull rods are fixedly connected to one end of the mounting plate, and the pull rods are slidably connected to the fixed plate. A connecting frame is provided at one end of the plurality of pull rods, and a sleeve is rotatably connected to the middle of the connecting frame. A threaded column is fixedly connected to one end of the fixed plate, and the sleeve is threadedly connected to the threaded column.

[0008] Preferably, the first heat exchange plate has a first water passage hole at one end of its top, a first water inlet hole at the end of its top away from the first water passage hole, a first water inlet groove below the first water inlet hole, a second water passage hole at the bottom of its first heat exchange plate at one end of the first water inlet hole, a first drain hole at the bottom of its first heat exchange plate at one end of the second water passage hole, and a first drain groove above the first drain hole.

[0009] Preferably, a plurality of first guide plates are fixedly connected inside the first heat exchange plate, and a first sealing strip is provided at one end of the first guide plate on the first heat exchange plate.

[0010] Preferably, the second heat exchange plate has a third water passage hole at one bottom end, a second water inlet hole at the bottom end away from the third water passage hole, a second water inlet groove above the second water inlet hole, a fourth water passage hole at the top end of the second heat exchange plate away from the second water inlet hole, a second drain hole at the top end of the second heat exchange plate away from the fourth water passage hole, and a second drain groove below the second drain hole.

[0011] Preferably, a plurality of second guide plates are fixedly connected inside the second heat exchange plate, and a second sealing strip is provided at one end of the second guide plate on the second heat exchange plate.

[0012] Preferably, a threaded rod is fixedly connected to the end of the pull rod away from the mounting plate, and the connecting frame is provided with a through hole at the pull rod. One end of the threaded rod passes through the through hole and passes through the connecting frame, and is threadedly connected with a nut.

[0013] Preferably, handles are fixedly connected to both ends of the outer wall of the sleeve, and four sealing gaskets are provided on the fixing plate at one end of the first heat exchange plate.

[0014] Preferably, a first water inlet pipe is provided at one top end of the side wall of the mounting plate, a first drain pipe is provided at one bottom end of the side wall of the mounting plate, a second water inlet pipe is provided at an adjacent position of the side wall of the mounting plate adjacent to the first drain pipe, the second water inlet pipe being directly below the first water inlet pipe, and a second drain pipe is provided at an adjacent position of the side wall of the mounting plate adjacent to the first water inlet pipe, the second drain pipe being directly above the first drain pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the design of pull rods, sleeves and connecting frames, allows the operator to move the connecting frame by simply rotating the sleeve, which in turn moves all the pull rods, thereby moving the mounting plate towards the fixed plate, thus clamping the first heat exchange plate and the second heat exchange plate. This design ensures that the first heat exchange plate and the second heat exchange plate are subjected to uniform pressure during the clamping process, thereby ensuring the consistency of the tightening degree and improving the sealing performance and heat exchange efficiency.

[0017] 2. This utility model increases the flow path and residence time of the fluid within the first and second heat exchange plates through the design of the first and second guide plates, making the heat exchange between the fluid and the first and second heat exchange plates more complete. At the same time, it allows for a more uniform heat distribution of the fluid within the first and second heat exchange plates, avoiding local overheating or undercooling. This helps reduce energy loss during fluid flow, improves energy utilization, and achieves energy-saving effects. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 for Figure 1 Another perspective structural diagram;

[0021] Figure 3 This is a schematic diagram of the fixing plate structure in this utility model;

[0022] Figure 4 for Figure 3 Another perspective structural diagram;

[0023] Figure 5This is an exploded view showing the connection relationship between the first heat exchange plate and the second heat exchange plate in this utility model.

[0024] Figure 6 This is a schematic diagram of the first heat exchange plate structure in this utility model;

[0025] Figure 7 This is a schematic diagram of the second heat exchange plate structure in this utility model;

[0026] Figure 8 for Figure 1 A magnified schematic diagram of the structure at point A in the diagram.

[0027] In the diagram: 1. Fixed plate; 2. Sliding rod; 3. Mounting plate; 4. First heat exchange plate; 5. Second heat exchange plate; 6. Tie rod; 7. Connecting frame; 8. Sleeve; 9. Threaded column; 10. First water passage hole; 11. First water inlet hole; 12. First water inlet groove; 13. Second water passage hole; 14. First drain hole; 15. First drain groove; 16. First guide plate; 17. First sealing strip; 18. Third water passage hole; 19. Second water inlet hole; 20. Second water inlet groove; 21. Fourth water passage hole; 22. Second drain hole; 23. Second drain groove; 24. Second guide plate; 25. Second sealing strip; 26. Threaded rod; 27. Through hole; 28. Nut; 29. ​​Handle; 30. Sealing gasket; 31. First water inlet pipe; 32. First drain pipe; 33. Second water inlet pipe; 34. Second drain pipe; 35. Mounting hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: Figure 1-8 As shown, this utility model provides a high-efficiency and energy-saving plate heat exchanger unit, including a fixed plate 1. Two sliding rods 2 are fixedly connected to one end of the fixed plate 1. An installation plate 3 is slidably connected to one end of the two sliding rods 2. Multiple first heat exchange plates 4 and multiple second heat exchange plates 5 are arranged between the fixed plate 1 and the installation plate 3, and the first heat exchange plates 4 and second heat exchange plates 5 are arranged alternately. Both the first heat exchange plates 4 and the second heat exchange plates 5 are slidably connected to the sliding rods 2. Multiple pull rods 6 are fixedly connected to one end of the installation plate 3. The pull rods 6 are slidably connected to the fixed plate 1. A connecting frame 7 is provided at one end of the multiple pull rods 6. A sleeve 8 is rotatably connected to the middle of the connecting frame 7. A threaded column 9 is fixedly connected to one end of the fixed plate 1. The sleeve 8 is threadedly connected to the threaded column 9.

[0030] In this embodiment, the fixing plate 1 is provided with multiple mounting holes 35 to allow the pull rod 6 to pass through. In use, multiple first heat exchange plates 4 and multiple second heat exchange plates 5 are firstly and secondly staggered and installed onto the two sliding rods 2 on the fixing plate 1. When the first heat exchange plates 4 and second heat exchange plates 5 are installed, the first heat exchange plate 4 is closest to the fixing side, and the second heat exchange plate 5 is on the outermost side. Then, the mounting plate 3 is installed onto the two sliding rods 2, and the mounting plate 3 is pushed towards the fixing plate 1, allowing the mounting plate 3 to contact the second heat exchange plate 5. During this process, the pull rod 6... Rod 6 passes through mounting hole 35 through fixed plate 1. At this time, the operator can connect connecting bracket 7 and rod 6 together. Then the operator needs to rotate sleeve 8. During the rotation, sleeve 8 will move on threaded post 9, thereby driving connecting bracket 7 to move, which in turn drives rod 6, thereby driving mounting plate 3 to move towards fixed plate 1, thus clamping multiple first heat exchange plates 4 and multiple second heat exchange plates 5. This installation method can ensure that the first heat exchange plates 4 and second heat exchange plates 5 are subjected to uniform pressure during clamping, thereby ensuring sealing effect.

[0031] The first heat exchange plate 4 has a first water passage hole 10 at one end of its top, a first water inlet hole 11 at the end of its top away from the first water passage hole 10, a first water inlet groove 12 below the first water inlet hole 11, a second water passage hole 13 at the bottom of its first heat exchange plate 4 at the end of its bottom away from the first water inlet hole 11, a first drain hole 14 at the bottom of its first heat exchange plate 4 away from the second water passage hole 13, and a first drain groove 15 above the first drain hole 14. Multiple first guide plates 16 are fixedly connected inside the first heat exchange plate 4, and a first sealing strip 17 is provided at one end of the first guide plate 16.

[0032] In this embodiment, during the heat exchange process, the cold fluid flows into the first heat exchange plate 4 through the first water inlet 12 and flows downward along the first guide plate 16 inside the first heat exchange plate 4. When the cold fluid flows to the bottom of the first heat exchange plate 4, it flows out of the first heat exchange plate 4 through the first drain 15. In addition, the design of the first sealing strip 17 can improve the sealing effect.

[0033] The second heat exchange plate 5 has a third water passage hole 18 at one bottom end, a second water inlet hole 19 at the bottom end away from the third water passage hole 18, a second water inlet groove 20 above the second water inlet hole 19, a fourth water passage hole 21 at the top end of the second heat exchange plate 5 at the end away from the second water inlet hole 19, a second drain hole 22 at the top end of the second heat exchange plate 5 away from the fourth water passage hole 21, and a second drain groove 23 below the second drain hole 22; multiple second guide plates 24 are fixedly connected inside the second heat exchange plate 5, and a second sealing strip 25 is provided at one end of the second guide plate 24 of the second heat exchange plate 5.

[0034] In this embodiment, during the heat exchange process, the hot fluid flows into the second heat exchange plate 5 through the second water inlet 20 and flows upward along the second guide plate 24 inside the second heat exchange plate 5. When the hot fluid reaches the top of the second heat exchange plate 5, it flows out of the second heat exchange plate 5 through the second drain 23. In addition, the design of the second sealing strip 25 can improve the sealing effect.

[0035] A threaded rod 26 is fixedly connected to one end of the pull rod 6 away from the mounting plate 3. A through hole 27 is provided at the pull rod 6. One end of the threaded rod 26 passes through the through hole 27 and is threadedly connected to a nut 28.

[0036] In this embodiment, the design of the threaded rod 26, through hole 27 and nut 28 allows the connecting frame 7 to be smoothly connected to the pull rod 6.

[0037] Handles 29 are fixedly connected to both ends of the outer wall of the sleeve 8, and four sealing gaskets 30 are provided on the fixing plate 1 at one end of the first heat exchange plate 4.

[0038] In this embodiment, the design of the handle 29 allows the operator to easily rotate the sleeve 8, and the design of the sealing gasket 30 can increase the sealing between the fixed plate 1 and the first heat exchange plate 4.

[0039] A first water inlet pipe 31 is provided at one end of the top of the side wall of the mounting plate 3, a first drain pipe 32 is provided at one end of the bottom of the side wall of the mounting plate 3, a second water inlet pipe 33 is provided on the side wall of the mounting plate 3 adjacent to the first drain pipe 32, the second water inlet pipe 33 is located directly below the first water inlet pipe 31, and a second drain pipe 34 is provided on the side wall of the mounting plate 3 adjacent to the first water inlet pipe 31, the second drain pipe 34 is located directly above the first drain pipe 32;

[0040] In this embodiment, during the heat exchange process, the cold fluid flows into the first heat exchange plate 4 through the first water inlet pipe 31 and is discharged through the first drain pipe 32, while the hot fluid flows into the second heat exchange tube through the second water inlet pipe 33 and is discharged through the second drain pipe 34.

[0041] Working principle: In use, multiple first heat exchange plates 4 and multiple second heat exchange plates 5 are firstly and secondly staggered and installed on two sliding rods 2 on the fixed plate 1. When the first heat exchange plates 4 and second heat exchange plates 5 are installed, the one closest to the fixed side is the first heat exchange plate 4, and the one on the outermost side is the second heat exchange plate 5. At this time, the mounting plate 3 is installed on the two sliding rods 2, and the mounting plate 3 is pushed towards the fixed plate 1 so that the mounting plate 3 contacts the second heat exchange plate 5. During this process, the pull rod 6 will pass through the mounting hole 35 through the fixed plate 1, and at the same time, the threaded rod 26 at one end of the pull rod 6 will pass through the through hole 27 through the connecting rod. Connecting bracket 7, at this time the worker can install nut 28 onto threaded rod 26, so that connecting bracket 7 and tie rod 6 are tightly connected together. Then the worker can rotate sleeve 8 by handle 29. During the rotation, sleeve 8 will move on threaded post 9, thereby driving connecting bracket 7 to move, and then driving tie rod 6, thereby driving mounting plate 3 to move towards fixed plate 1, thereby clamping multiple first heat exchange plates 4 and multiple second heat exchange plates 5. This installation method can ensure that the first heat exchange plates 4 and second heat exchange plates 5 are subjected to uniform pressure during the clamping process, thereby ensuring sealing effect.

[0042] During heat exchange, cold fluid is injected into the tubular cavity formed by the first inlet hole 11 and the fourth through hole 27 through the first inlet pipe 31. The cold fluid in this cavity flows into the first heat exchange plate 4 through the first inlet groove 12 and flows downward along the first guide plate 16 inside the first heat exchange plate 4. When the cold fluid reaches the bottom of the first heat exchange plate 4, it flows out of the first heat exchange plate 4 through the first drain groove 15 and enters the tubular cavity formed by the first drain hole 14 and the third through hole 27. Finally, it is discharged through the first drain pipe 32. At the same time as the cold fluid is injected, hot fluid is injected into the second inlet hole 11 through the second inlet pipe 33. Within the tubular cavity formed by the first water inlet 9 and the second water outlet 13, the hot fluid located in the cavity flows into the second heat exchange plate 5 through the second water inlet 20 and flows upward along the second guide plate 24 within the second heat exchange plate 5. When the hot fluid reaches the top of the second heat exchange plate 5, it flows out of the second heat exchange plate 5 through the second drain 23 and enters the tubular cavity formed by the second drain outlet and the first water inlet 10. Finally, it is discharged through the second drain pipe 34. By allowing the cold fluid and the hot fluid to flow within the first heat exchange plate 4 and the second heat exchange plate 5 respectively, heat is transferred through the first heat exchange plate 4 and the second heat exchange plate 5, thereby achieving the effect of heat exchange.

[0043] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-efficiency energy-saving plate heat exchanger unit, comprising a fixed plate (1), characterized in that: Two sliding rods (2) are fixedly connected to one end of the fixed plate (1). An installation plate (3) is slidably connected to one end of the two sliding rods (2). Multiple first heat exchange plates (4) and multiple second heat exchange plates (5) are arranged between the fixed plate (1) and the installation plate (3). The first heat exchange plates (4) and the second heat exchange plates (5) are arranged alternately. The first heat exchange plates (4) and the second heat exchange plates (5) are slidably connected to the sliding rods (2). Multiple pull rods (6) are fixedly connected to one end of the installation plate (3). The pull rods (6) are slidably connected to the fixed plate (1). A connecting frame (7) is provided at one end of the multiple pull rods (6). A sleeve (8) is rotatably connected to the middle of the connecting frame (7). A threaded column (9) is fixedly connected to one end of the fixed plate (1). The sleeve (8) is threadedly connected to the threaded column (9).

2. The high-efficiency energy-saving plate heat exchanger unit according to claim 1, characterized in that, The first heat exchange plate (4) has a first water passage hole (10) at one end of its top, a first water inlet hole (11) at the end of its top that is away from the first water passage hole (10), a first water inlet groove (12) at the bottom of its first heat exchange plate (4) below the first water inlet hole (11), a second water passage hole (13) at the bottom of its first heat exchange plate (4) at one end of the first water inlet hole (11), a first drain hole (14) at the bottom of its first heat exchange plate (4) away from the second water passage hole (13), and a first drain groove (15) at the top of its first heat exchange plate (4) above the first drain hole (14).

3. The high-efficiency energy-saving plate heat exchanger unit according to claim 2, characterized in that, The first heat exchange plate (4) has multiple first guide plates (16) fixedly connected inside, and the first heat exchange plate (4) has a first sealing strip (17) at one end of the first guide plate (16).

4. The high-efficiency energy-saving plate heat exchanger unit according to claim 1, characterized in that, The second heat exchange plate (5) has a third water passage hole (18) at one end of its bottom, a second water inlet hole (19) at the end of its bottom away from the third water passage hole (18), a second water inlet groove (20) above the second water inlet hole (19) on the second heat exchange plate (5), a fourth water passage hole (21) at the top of the second heat exchange plate (5) at one end of the second water inlet hole (19), a second drain hole (22) at the top of the second heat exchange plate (5) away from the fourth water passage hole (21), and a second drain groove (23) below the second drain hole (22) on the second heat exchange plate (5).

5. The high-efficiency energy-saving plate heat exchanger according to claim 4, characterized in that, The second heat exchange plate (5) has multiple second guide plates (24) fixedly connected inside, and a second sealing strip (25) is provided at one end of the second guide plate (24) of the second heat exchange plate (5).

6. The high-efficiency energy-saving plate heat exchanger according to claim 1, characterized in that, The pull rod (6) is fixedly connected to a threaded rod (26) at the end away from the mounting plate (3). The connecting frame (7) is provided with a through hole (27) at the pull rod (6). One end of the threaded rod (26) passes through the through hole (27) and is threaded with a nut (28).

7. The high-efficiency energy-saving plate heat exchanger according to claim 1, characterized in that, The sleeve (8) has handles (29) fixedly connected to both ends of its outer wall, and the fixing plate (1) has four sealing gaskets (30) at one end of the first heat exchange plate (4).

8. The high-efficiency energy-saving plate heat exchanger according to claim 1, characterized in that, The mounting plate (3) has a first water inlet pipe (31) at one end of the top side wall and a first drain pipe (32) at one end of the bottom side wall. The mounting plate (3) has a second water inlet pipe (33) adjacent to the first drain pipe (32) at one end of the side wall. The second water inlet pipe (33) is located directly below the first water inlet pipe (31). The mounting plate (3) has a second drain pipe (34) adjacent to the first water inlet pipe (31) at one end of the side wall. The second drain pipe (34) is located directly above the first drain pipe (32).

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