Plate heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a plate heat exchanger. In order to solve the problems that the number of heat exchange pieces is very large, the dismounting and mounting processes are tedious, the actual operation process is troublesome, it is difficult to guarantee that dirt on the surfaces of the heat exchange pieces is completely removed through a flushing mode, and the cleanliness is poor after cleaning, the following technical scheme is provided that the heat exchanger comprises a heat exchanger body; the heat exchanger body comprises a fixed plate, two sets of limiting rods are installed on one side of the fixed plate, the fixed plate is connected with a stand column through the two sets of limiting rods, the two sets of limiting rods are jointly connected with a movable plate in a sliding mode, a plurality of sets of heating pieces are arranged between the fixed plate and the movable plate, and the heating pieces are clamped between the two sets of upper and lower limiting rods. And two groups of positioning mechanisms. According to the utility model, the heat exchanger body can be directly brushed after the distance between the heating sheets needing to be cleaned is adjusted, so that the tedious operation of disassembly and assembly is avoided, and the cleaning efficiency is effectively improved.

Description

Technical Field

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

[0002] The plate heat exchanger uses multiple thin flat plates or corrugated plates for heat exchange. Its high efficient heat exchange capacity, small floor area, and easy maintenance and cleaning characteristics make it an ideal choice for many industrial and commercial applications.

[0003] In an existing cleaning device for a plate heat exchanger, the heat exchange plates of the disassembled plate heat exchanger are placed on a carrier plate, and the water pump is turned on to spray the clear water in the clear water tank from the high-pressure nozzle through the first-stage water pipe, the second-stage water pipe and the third-stage water pipe to wash the heat exchange plates. As is well known, the number of heat exchange plates installed in a heat exchanger is extremely large, and the process of disassembly and installation is a cumbersome process. Especially when it is necessary to turn over and wash multiple heat exchange plates, the actual operation process is rather troublesome, and the washing method is difficult to ensure that the dirt on the surface of the heat exchange plates is completely removed, and the cleanliness after cleaning may be poor. In view of this, the utility model proposes a plate heat exchanger. Content of the Utility Model

[0004] The purpose of the utility model is to propose a plate heat exchanger for the problems existing in the background art that the number of heat exchange plates is extremely large, the process of disassembly and installation is a cumbersome process, the actual operation process is rather troublesome, and the washing method is difficult to ensure that the dirt on the surface of the heat exchange plates is completely removed, and the cleanliness after cleaning is poor.

[0005] The technical solution of the utility model: A plate heat exchanger includes a heat exchanger body. The heat exchanger body includes a fixing plate. Two groups of limiting rods are installed on one side of the fixing plate. The fixing plate is connected to a column through the two groups of limiting rods. A moving plate is slidably connected to the two groups of limiting rods. A plurality of heating plates are arranged between the fixing plate and the moving plate. The heating plates are clamped between the two upper and lower limiting rods; two groups of positioning mechanisms are respectively arranged on the sides of the two groups of limiting rods away from the heating plates. The positioning mechanisms are used to squeeze and fix the positions of the heating plates. The positioning mechanism includes a positioning plate arranged on the side of the limiting rod away from the heating plate. A plurality of connecting rods are slidably connected to the positioning plate. The ends of the plurality of connecting rods close to the heating plate are fixedly connected together to form a lifting frame. The lifting frame is in an inverted U shape. A plurality of mounting plates are fixedly connected to the side of the lifting frame close to the heating plate. Pressure blocks are installed on the mounting plates; two groups of separating components fixedly connected to the top and bottom of the moving plate. The separating components are used to separate the positioning mechanisms from the heating plates and the tightening and loosening mechanisms installed on the fixing plate and the column. The tightening and loosening mechanisms are used to drive the pressure blocks away from the heating plates.

[0006] Optionally, the positioning mechanism further includes a limiting disk fixedly connected to the end of the connecting rod away from the lifting frame. A spring is sleeved outside the connecting rod, and the spring is arranged between the positioning plate and the lifting frame. The pressing block is made of rubber material.

[0007] Optionally, on both sides of the upper group of the positioning plates, there are respectively fixedly connected with top plates. The top plates are L-shaped. The two groups of top plates are respectively fixedly connected to the fixed plate and the column. The lower group of the positioning plates is fixedly connected between the fixed plate and the column.

[0008] Optionally, the length of the lifting frame is less than the maximum distance between the fixed plate and the limiting rod.

[0009] Optionally, the separating component includes a mounting frame fixedly connected to the moving plate. The mounting frame is in a "U" shape. A plurality of groups of rollers are rotatably connected in the mounting frame, and the rollers contact the lifting frame.

[0010] Optionally, the tightening and loosening mechanism includes four groups of connecting plates symmetrically arranged on both sides of the moving plate. The four groups of connecting plates are respectively fixedly connected to both sides of the two lifting frames. The connecting plates are L-shaped. On the side of the connecting plate away from the lifting frame, there is fixedly connected a rotating column. A driving plate is rotatably connected to the rotating column. The four groups of driving plates are all vertically arranged. A sliding groove is formed in the driving plate, and a sliding block is slidably connected in the sliding groove. The two sliding blocks on the same side of the moving plate are jointly fixedly connected to a rotating plate. A positioning column is also fixedly connected to the side surface of the rotating plate. The two positioning columns on both sides of the moving plate are respectively rotatably connected to the side surfaces of the fixed plate and the column.

[0011] Optionally, the two groups of connecting plates and the two groups of driving plates on the same side of the moving plate are symmetrically arranged with the positioning column as the center.

[0012] Optionally, on the sides of the two rotating plates away from each other, there are respectively fixedly connected with synchronizing plates. A holding rod is fixedly connected between the two synchronizing plates.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] Through the setting of the separating component, even under the elastic force of the spring, it is convenient for the movement of the moving plate, which is convenient for unfolding the heating sheet for flushing or fixing it between the pressing blocks for brushing;

[0015] Furthermore, through the setting of the positioning mechanism, after the spring releases the elastic force, the pressing block can tightly press the heating sheet. At the same time, with the setting of the tightening and loosening mechanism, when rotating the synchronizing plate, it can easily drive the pressing block to slightly move away from the heating sheet, which is convenient for adjusting the distance between multiple groups of heating sheets, thus facilitating the brushing of the heating sheets, improving the cleaning effect, and at the same time avoiding the frequent disassembly and assembly of the heating sheets, improving the work efficiency;

[0016] In summary, the utility model can adjust the spacing between the heating plates that need to be cleaned and then directly perform brushing on the heat exchanger body, thus avoiding the tedious operation of disassembly and assembly and effectively improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a plate heat exchanger;

[0018] Figure 2 yes Figure 1 Schematic diagram of the cross-section structure;

[0019] Figure 3 It is a structural diagram of the positioning mechanism;

[0020] Figure 4 yes Figure 2 A magnified schematic diagram of point A in the middle;

[0021] Figure 5 It is a structural diagram of the tensioning mechanism.

[0022] Reference numerals:

[0023] 1. Heat exchanger body; 11. Fixed plate; 12. Limit rod; 13. Column; 14. Movable plate; 15. Heating plate;

[0024] 2. Positioning mechanism; 21. Positioning plate; 22. Connecting rod; 23. Lifting frame; 24. Mounting plate; 25. Pressing block; 26. Limiting plate; 27. Spring;

[0025] 3. Partition assembly; 31. Mounting frame; 32. Roller;

[0026] 4. Tensioning mechanism; 41. Connecting plate; 42. Rotating column; 43. Driving plate; 44. Slide; 45. Slider; 46. Rotating plate; 47. Positioning column; 48. Synchronizing plate; 49. Grip;

[0027] 5. Top plate. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention.

[0030] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] Example

[0034] like Figure 1 As shown, the plate heat exchanger proposed in the present invention includes a heat exchanger body 1, which includes a fixed plate 11. Two groups of limit rods 12 are installed on one side of the fixed plate 11. The fixed plate 11 is connected to the column 13 through the two groups of limit rods 12. A movable plate 14 is slidably connected to the two groups of limit rods 12. Multiple groups of heating plates 15 are arranged between the fixed plate 11 and the movable plate 14. The heating plates 15 are clamped between the two groups of upper and lower limit rods 12.

[0035] For further information, see Figure 2 and Figure 3, the above heat exchanger includes two positioning mechanisms 2, which are respectively arranged on the sides of the two limiting rods 12 away from the heating sheet 15. The positioning mechanism 2 is used to squeeze and fix the position of the heating sheet 15. The positioning mechanism 2 includes a positioning plate 21 arranged on the side of the limiting rod 12 away from the heating sheet 15. On both sides of the upper set of positioning plates 21, there are respectively fixed connection top plates 5. The top plates 5 are L-shaped. The two top plates 5 are respectively fixedly connected to the fixing plate 11 and the column 13. The lower set of positioning plates 21 is fixedly connected between the fixing plate 11 and the column 13. The upper and lower sets of positioning plates 21 are both fixedly arranged. Six connecting rods 22 are slidably connected to the positioning plate 21. One ends of the multiple connecting rods 22 close to the heating sheet 15 are commonly fixedly connected to a lifting frame 23. The arrangement of the connecting rods 22 makes the movement of the lifting frame 23 stable. The lifting frame 23 is in a "冂" shape. On the side of the lifting frame 23 close to the heating sheet 15, there are fixedly connected multiple mounting plates 24. When the lifting frame 23 moves, it drives the two mounting plates 24 to move synchronously. A pressing block 25 is installed on the mounting plate 24. The pressing block 25 is made of rubber material. After the pressing block 25 squeezes the heating sheet 15, it has a large frictional force to prevent the heating sheet 15 from moving, thus facilitating the brushing of the heating sheet 15. The positioning mechanism 2 further includes a limiting disc 26 fixedly connected to the end of the connecting rod 22 away from the lifting frame 23. The limiting disc 26 is used for limiting. A spring 27 is sleeved outside the connecting rod 22. The spring 27 is arranged between the positioning plate 21 and the lifting frame 23. The spring 27 is used to release elastic force and then drive the mounting plate 24 to press against the heating sheet 15 to fix the position of the heating sheet 15.

[0036] Furthermore, as Figure 4 shown, the above heat exchanger further includes two separating components 3 fixedly connected to the top and bottom of the moving plate 14. The separating component 3 is used to separate the positioning mechanism 2 and the heating sheet 15. The separating component 3 includes a mounting frame 31 fixedly connected to the moving plate 14. The mounting frame 31 is in a "凵" shape. Multiple rollers 32 are rotatably connected in the mounting frame 31. The rollers 32 contact the lifting frame 23. When the moving plate 14 moves under the limiting effect of the limiting rod 12, the rollers 32 contact and roll with the lifting frame 23, facilitating the movement of the moving plate 14. The length of the lifting frame 23 is less than the maximum distance between the fixing plate 11 and the limiting rod 12, so that the spring 27 releases elastic force only when the moving plate 14 moves to the position farthest from the fixing plate 11. When the moving plate 14 does not move to the position farthest from the fixing plate 11, the pressing block 25 is also away from the heating sheet 15.

[0037] Finally, please refer to Figure 5The heat exchanger further includes a tensioning mechanism 4 mounted on the fixed plate 11 and the column 13. The tensioning mechanism 4 is used to drive the pressure block 25 away from the heating plate 15. The tensioning mechanism 4 includes four groups of connecting plates 41 symmetrically arranged on both sides of the movable plate 14. The four groups of connecting plates 41 are respectively fixedly connected to both sides of the two groups of lifting frames 23. The connecting plates 41 move synchronously with the lifting frames 23. The connecting plates 41 are L-shaped. A rotating column 42 is fixedly connected to the side of the connecting plates 41 away from the lifting frames 23. A driving plate 43 is rotatably connected to the rotating column 42. The driving plate 43 drives the connecting plates 41 to move through the rotating column 42, thereby driving the lifting frames 23 to move. The four groups of driving plates 43 are all vertically arranged. A slide groove 44 is provided on the driving plates 43. A slider 45 is slidably connected in the slide groove 44. After the spring 27 releases its elastic force, the slider 45 remains stationary. Due to the arrangement of the slide groove 44, the driving plates 43 can slide. Two sets of sliders 45 on the same side of the movable plate 14 are fixedly connected to a rotating plate 46. Positioning posts 47 are also fixedly connected to the sides of the rotating plate 46. The two sets of positioning posts 47 on either side of the movable plate 14 are rotatably connected to the sides of the fixed plate 11 and the uprights 13, respectively, so that the positioning posts 47 remain in place and rotate. The two sets of connecting plates 41 and the two sets of driving plates 43 on the same side of the movable plate 14 are symmetrically arranged around the positioning posts 47. A synchronization plate 48 is fixedly connected to the sides of the two sets of rotating plates 46 that are away from each other. A grip 49 is fixedly connected between the two sets of synchronization plates 48. Initially, the grip 49 rests against the side of the fixed plate 11, preventing it from moving downward. Consequently, the grip 49 can only move upward and, through the synchronization plate 48, drive the rotating plate 46 to rotate. As the grip 49 moves upward, it drives the rotating plate 46 to rotate, causing the driving plate 43 to drive the upper and lower connecting plates 41 away from each other, thereby slightly moving the pressure block 25 away from the heater 15, facilitating adjustment of the heater 15's position.

[0038] In this embodiment, when cleaning, first remove the fasteners connecting the fixed plate 11 and the movable plate 14, then move the movable plate 14 away from the fixed plate 11. The roller 32 then contacts the lifting frame 23, facilitating the movement of the movable plate 14 until one side of the movable plate 14 contacts the upright 13. At this point, the movable plate 14 is completely clear of the lifting frame 23. The spring 27 releases its force, driving the lifting frame 23 toward the heating plate 15. Simultaneously, the pressure block 25 presses against the heating plate 15, securing the position of the heating plate 15. Simultaneously, as the lifting frame 23 moves, the slider 45 remains stationary. Due to the arrangement of the chute 44, the drive plate 43 moves synchronously with the lifting frame 23. The handle 49 is then slightly raised upward. The handle 49, via the synchronizing plate 48, rotates the rotating plate 46. The rotating plate 46 then drives the connecting plate 41 via the driving plate 43, moving the lifting frame 23 away from the heating plate 15. The pressure block 25 now leaves the surface of the heating plate 15. At this point, the heater plates 15 can be moved under the restraining action of the restraining rod 12, and one group of heater plates 15 can be slid away from the other heater plates 15. Then, the gripping rod 49 is released to press the heater plates 15 against each other again, fixing the positions of the heater plates 15. The surfaces of the separated group of heater plates 15 can now be rinsed and scrubbed. Afterwards, the gripping rod 49 is lifted and the cleaned heater plates 15 are moved to the side close to the movable plate 14. The remaining heater plates 15 can then be cleaned in sequence, thus avoiding frequent disassembly and assembly of the heater plates 15 and improving cleaning efficiency.

[0039] The above specific embodiment is only an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A plate heat exchanger, characterized in that: Including: A heat exchanger body (1), the heat exchanger body (1) includes a fixing plate (11), on one side of the fixing plate (11), two groups of limiting rods (12) are installed, the fixing plate (11) is connected to a column (13) through the two groups of limiting rods (12), a moving plate (14) is slidably connected to the two groups of limiting rods (12) together, between the fixing plate (11) and the moving plate (14), multiple groups of heating sheets (15) are arranged, and the heating sheets (15) are clamped between the two groups of upper and lower limiting rods (12); Two groups of positioning mechanisms (2), the two groups of positioning mechanisms (2) are respectively arranged on the sides of the two groups of limiting rods (12) away from the heating sheets (15), the positioning mechanisms (2) are used for squeezing and fixing the positions of the heating sheets (15), the positioning mechanisms (2) include positioning plates (21) arranged on the sides of the limiting rods (12) away from the heating sheets (15), multiple groups of connecting rods (22) are slidably connected to the positioning plates (21), the ends of the multiple groups of connecting rods (22) close to the heating sheets (15) are fixedly connected together to form a lifting frame (23), the lifting frame (23) is arranged in a "冂” shape, on the side of the lifting frame (23) close to the heating sheets (15), multiple groups of mounting plates (24) are fixedly connected, and pressing blocks (25) are installed on the mounting plates (24); Two groups of separating components (3) fixedly connected to the top and bottom of the moving plate (14), the separating components (3) are used for separating the positioning mechanisms (2) from the heating sheets (15); A tightening and loosening mechanism (4) installed on the fixing plate (11) and the column (13), the tightening and loosening mechanism (4) is used for driving the pressing blocks (25) away from the heating sheets (15).

2. A plate heat exchanger according to claim 1, characterized in that: The positioning mechanism (2) further includes a limiting disc (26) fixedly connected to the end of the connecting rod (22) away from the lifting frame (23), an outer ring of the connecting rod (22) is sleeved with a spring (27), the spring (27) is arranged between the positioning plate (21) and the lifting frame (23), and the pressing block (25) is made of rubber material.

3. The plate heat exchanger according to claim 1, characterized in that: On both sides of the upper group of positioning plates (21), top plates (5) are respectively fixedly connected, the top plates (5) are arranged in an L shape, the two groups of top plates (5) are respectively fixedly connected to the fixing plate (11) and the column (13), and the lower group of positioning plates (21) is fixedly connected between the fixing plate (11) and the column (13).

4. The plate heat exchanger according to claim 1, characterized in that: The length of the lifting frame (23) is less than the maximum distance between the fixing plate (11) and the limiting rods (12).

5. The plate heat exchanger according to claim 1, characterized in that: The separating component (3) includes a mounting frame (31) fixedly connected to the moving plate (14), the mounting frame (31) is arranged in a "凵” shape, multiple groups of rollers (32) are rotatably connected in the mounting frame (31), and the rollers (32) are in contact with the lifting frame (23).

6. The plate heat exchanger according to claim 1, characterized in that: The tensioning mechanism (4) comprises four groups of connecting plates (41) symmetrically arranged on both sides of the movable plate (14), the four groups of connecting plates (41) being fixedly connected to both sides of the two groups of lifting frames (23), the connecting plates (41) being L-shaped, the side of the connecting plates (41) away from the lifting frame (23) being fixedly connected to a rotating column (42), the rotating column (42) being rotatably connected to a driving plate (43), the four groups of driving plates (43) being vertically arranged, the driving plate (43) being provided with a sliding groove (44), the sliding groove (44) being slidably connected to a slider (45), the two groups of sliders (45) on the same side of the movable plate (14) being fixedly connected to a rotating plate (46), the side of the rotating plate (46) being further fixedly connected to a positioning column (47), the two groups of positioning columns (47) on both sides of the movable plate (14) being rotatably connected to the side of the fixed plate (11) and the column (13).

7. The plate heat exchanger according to claim 6, characterized in that: The two groups of connecting plates (41) and the two groups of driving plates (43) on the same side of the movable plate (14) are symmetrically arranged with the positioning column (47) as the center.

8. The plate heat exchanger according to claim 7, characterized in that: The two groups of rotating plates (46) are both fixedly connected to a synchronous plate (48) on the sides away from each other, and a gripping rod (49) is fixedly connected between the two groups of synchronous plates (48).

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