Plate-shell type heat exchanger convenient to descale

Abstract

The utility model discloses a lamella heat exchanger convenient to descale, and relates to the technical field of heat exchangers. The device comprises a shell, and a dismounting mechanism is arranged on the shell. By arranging the disassembling mechanism, when the first end needs to be disassembled, the bolt is loosened and taken down firstly, after the bolt is taken down, the fixing plate loses constraint, the spring resets and shrinks under the elastic action of the spring, and therefore the connecting piece is driven to move, the positioning pin is driven to move when the connecting piece moves, and the first end is disassembled. And finally, the end head I is pulled towards the left side of the shell, so that the end head I can be separated from the shell, parts such as the heat exchange plate in the shell can be conveniently overhauled, cleaned or replaced, the heat exchange plate in the shell can be regularly descaled, and the service life of the heat exchange plate is prolonged. Therefore, the convenience of equipment maintenance is improved, and the maintenance time and cost are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and in particular relates to a plate and shell heat exchanger that is easy to descale. Background Technology

[0002] Plate and shell heat exchangers are high-efficiency heat exchange devices that combine the advantages of plate and shell-and-tube heat exchangers. They use special corrugated heat exchange plates arranged in an orderly manner inside the shell, which greatly increases the heat exchange area and improves heat transfer efficiency. They are widely used in chemical, power, refrigeration and other industries, providing reliable heat exchange guarantee for stable system operation.

[0003] Plate heat exchangers typically use multiple tightly connected components at the ends, with numerous connection points and high assembly precision requirements, making the disassembly process cumbersome. As a result, the ends of some existing plate heat exchangers are not easy to disassemble and install, requiring maintenance personnel to spend a lot of time and effort when the ends need to be disassembled. It also makes it difficult to remove the heat exchange plates inside the shell for descaling and cleaning. Utility Model Content

[0004] The purpose of this invention is to provide a plate-and-shell heat exchanger that is easy to descale. By providing a disassembly mechanism, when it is necessary to disassemble end one, first loosen the bolts and remove them. After the bolts are removed, the fixing plate is no longer constrained, and the spring returns to its original position and contracts under its own elasticity, thereby driving the connecting piece to move. When the connecting piece moves, it will also drive the positioning pin to move, so that the end of the positioning pin away from the fixing plate is detached from the connecting plate and no longer constrains the connecting plate. Finally, pull end one to the left side of the shell to separate end one from the shell, thus solving the problem that the end of some existing plate-and-shell heat exchangers is inconvenient to disassemble and install.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a plate-and-shell heat exchanger that facilitates descaling, comprising a shell, on which a disassembly mechanism and a pressing mechanism are provided.

[0007] The disassembly mechanism includes an end piece slidably connected to the left side of the housing. A connecting plate is fixedly connected to the left side of the housing. A connecting groove is provided on the right side of the end piece. The left side of the connecting plate extends into the interior of the connecting groove and is slidably connected to the connecting groove. A plurality of sliding grooves are provided on the outer wall of the end piece. A positioning pin is slidably connected to the interior of each of the sliding grooves. The end of each of the positioning pins near the connecting plate extends into the interior of the connecting plate and is slidably connected to the connecting plate. The pressing mechanism includes a motor fixedly connected to the left side of the end piece.

[0008] Furthermore, each of the positioning pins is fixedly connected to a connecting piece, and each of the positioning pins is wound with a spring.

[0009] Furthermore, each of the locating pins has a fixing plate fixedly connected to one end away from the connecting plate, and each of the fixing plates has two bolts threadedly connected to the end.

[0010] Furthermore, a sealing strip is fixedly connected to the inner wall of the housing, and the sealing strip is slidably connected to the inner wall of end one. End two is fixedly connected to the right side of the housing.

[0011] Furthermore, a plurality of heat exchange plates are slidably connected to the inner wall of the housing, and a plurality of guide rails are fixedly connected to the inner wall of the housing.

[0012] Furthermore, several guide grooves are provided on several heat exchange plates, and several guide rails pass through several heat exchange plates and are slidably connected to the corresponding guide grooves.

[0013] Furthermore, the output shaft of the motor is fixedly connected to a rotating shaft via a coupling. The right end of the rotating shaft extends into the interior of end one and is rotatably connected to end one. An internally threaded sleeve passes through end one and is rotatably connected to end one. A threaded rod passes through the inner wall of the internally threaded sleeve and is threadedly connected to the internally threaded sleeve.

[0014] Furthermore, a pressing plate is fixedly connected to the right end of the threaded rod, and gears are fixedly connected to both the internal threaded sleeve and the rotating shaft, with the two gears meshing together.

[0015] This utility model has the following beneficial effects:

[0016] 1. By setting up a disassembly mechanism, when it is necessary to disassemble end one, first loosen the bolts and remove them. After the bolts are removed, the fixing plate is no longer constrained, and the spring returns to its original position and contracts under its own elasticity, thereby driving the connecting piece to move. When the connecting piece moves, it will also drive the positioning pin to move, so that the end of the positioning pin away from the fixing plate is detached from the connecting plate and no longer constrains the connecting plate. Finally, pull end one to the left side of the shell to separate end one from the shell, which makes it easier to inspect, clean or replace the heat exchange plates and other components inside the shell. The heat exchange plates inside the shell can be descaled regularly, thereby improving the convenience of equipment maintenance and reducing maintenance time and costs.

[0017] 2. By setting up an extrusion mechanism and starting the motor, the motor drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the internal threaded sleeve to rotate through the gear. Since the threaded rod is threadedly connected to the internal threaded sleeve, when the internal threaded sleeve rotates, it will drive the threaded rod to move axially. When the threaded rod moves, it will drive the extrusion plate to move, so that the extrusion plate gradually squeezes the heat exchange plate or moves away from the heat exchange plate. This allows the device to flexibly adjust the number of heat exchange plates according to changes in working conditions or equipment upgrades, easily increasing or decreasing the number of heat exchange plates. At the same time, it also facilitates the removal of heat exchange plates for cleaning, achieving thorough descaling.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a front cross-sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the threaded rod of this utility model;

[0023] Figure 4 This is a schematic diagram of the connecting plate of this utility model;

[0024] Figure 5 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0025] Figure 6 This utility model Figure 2 A magnified structural diagram of B in the diagram.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Housing; 2. Disassembly mechanism; 3. Extrusion mechanism; 21. End 1; 22. Connecting plate; 23. Connecting groove; 24. Slide groove; 25. Positioning pin; 26. Connecting piece; 27. Spring; 28. Fixing plate; 29. ​​Bolt; 210. Sealing strip; 211. End 2; 212. Heat exchange plate; 213. Guide slide rail; 214. Guide slide groove; 31. Motor; 32. Rotating shaft; 33. Internal threaded sleeve; 34. Threaded rod; 35. Extrusion plate; 36. Gear. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6As shown, this utility model is a plate-and-shell heat exchanger that is easy to descale, including a shell 1. The shell 1 is provided with a disassembly mechanism 2 and a pressing mechanism 3. The disassembly mechanism 2 includes an end 21 slidably connected to the left side of the shell 1. A connecting plate 22 is fixedly connected to the left side of the shell 1. A connecting groove 23 is opened on the right side of the end 21. The left side of the connecting plate 22 extends into the interior of the connecting groove 23 and is slidably connected to the connecting groove 23. A plurality of sliding grooves 24 are opened on the outer wall of the end 21. Positioning pins 25 are slidably connected inside the plurality of sliding grooves 24. The plurality of positioning pins 25 are close to the connecting plate. One end of each of the 22 extends into the interior of the connecting plate 22 and is slidably connected to the connecting plate 22. The extrusion mechanism 3 includes a motor 31 fixedly connected to the left side of the end 21. Connecting pieces 26 are fixedly connected to several positioning pins 25. Springs 27 are wound around several positioning pins 25. Fixing plates 28 are fixedly connected to the ends of several positioning pins 25 away from the connecting plate 22. Two bolts 29 are threadedly connected between several fixing plates 28 and the end 21. A sealing strip 210 is fixedly connected to the inner wall of the housing 1. The sealing strip 210 is slidably connected to the inner wall of the end 21. End 211 is fixedly connected to the right side of body 1. Several heat exchange plates 212 are slidably connected to the inner wall of shell 1. Several guide rails 213 are fixedly connected to the inner wall of shell 1. Several guide grooves 214 are opened on the heat exchange plates 212. The guide rails 213 pass through the heat exchange plates 212 and are slidably connected to the corresponding guide grooves 214. By setting a disassembly mechanism, when it is necessary to disassemble end 21, first loosen bolt 29 and remove bolt 29. After bolt 29 is removed, fixing plate 28 loses its constraint, and spring 27 is in its own... Under the action of elasticity, the resetting and contraction will drive the connecting piece 26 to move. When the connecting piece 26 moves, it will drive the positioning pin 25 to move, so that the end of the positioning pin 25 away from the fixed plate 28 will be separated from the connecting plate 22 and will no longer constrain the connecting plate 22. Finally, the end 21 will be pulled to the left side of the housing 1, so that the end 21 can be separated from the housing 1. This makes it easier to inspect, clean or replace the heat exchange plate 212 and other components inside the housing 1. The heat exchange plate 212 inside the housing 1 can be descaled regularly, thereby improving the convenience of equipment maintenance and reducing maintenance time and cost.

[0030] The output shaft of motor 31 is fixedly connected to a rotating shaft 32 via a coupling. The right end of the rotating shaft 32 extends into the interior of end head 21 and is rotatably connected to end head 21. An internally threaded sleeve 33 passes through end head 21 and is rotatably connected to end head 21. A threaded rod 34 passes through the inner wall of the internally threaded sleeve 33 and is threadedly connected to the internally threaded sleeve 33. A pressing plate 35 is fixedly connected to the right end of the threaded rod 34. Gears 36 are fixedly connected to both the internally threaded sleeve 33 and the rotating shaft 32. The two gears 36 mesh with each other. By setting up a pressing mechanism, motor 31 is started, and motor 31 drives... The rotating shaft 32 rotates, and when the rotating shaft 32 rotates, it drives the internal threaded sleeve 33 to rotate through the gear 36. Since the threaded rod 34 is threadedly connected to the internal threaded sleeve 33, when the internal threaded sleeve 33 rotates, it will drive the threaded rod 34 to move axially. When the threaded rod 34 moves, it will drive the extrusion plate 35 to move, so that the extrusion plate 35 gradually extrudes the heat exchange plate 212 or moves away from the heat exchange plate 212. This allows the device to flexibly adjust the number of heat exchange plates according to changes in working conditions or equipment upgrades, easily increasing or decreasing the number of heat exchange plates. At the same time, it also makes it easy to remove the heat exchange plate 212 for cleaning, achieving thorough descaling.

[0031] A specific application of this embodiment is as follows: When using this device, firstly, with end 21 separated from housing 1, the heat exchange plate 212 is installed inside housing 1. The heat exchange plate 212 is slidably connected to the guide rail 213 via guide groove 214, thereby ensuring the accuracy of the position of the heat exchange plate 212 inside housing 1 through the guide rail 213 and guide groove 214. After the heat exchange plate 212 is installed inside housing 1, end 21 is then connected to housing 1, causing the connecting plate 22 on the left side of housing 1 to slide into the connecting groove 23 on the right side of end 21, thereby positioning the relative position between housing 1 and end 21. Then, the fixing plate 28 is pressed, causing the fixing plate 28 to move the positioning pin 25. When the positioning pin 25 moves, the end away from the fixing plate 28 will insert into the connecting plate 22, thereby limiting the position of the connecting plate 22 and preventing the connecting plate 22 from moving. This fixes the relative position between end 21 and housing 1. When the positioning pin 25 moves, it also drives the connecting piece 26 to move. When the connecting piece 26 moves, it drives the spring 27 to stretch. Finally, the bolt 29 connects the fixing plate 28 to end 21. Thus, the positioning pin 25 cannot move through the fixing plate 28, and the installation of end 21 is completed. When end 21 needs to be disassembled, first loosen the bolt 29. After the bolt 29 is loosened, the fixing plate 28 loses its constraint. The spring 27 returns to its original position and contracts under its own elasticity, thereby driving the connecting piece 26 to move. When the connecting piece 26 moves, it drives the positioning pin 25 to move. When the positioning pin 25 moves, the end away from the fixing plate 28 is separated from the connecting plate 22 and no longer constrains the connecting plate 22. End 21 can then be disassembled. The sealing strip 210 seals the connection between end 21 and housing 1 to prevent leakage.

[0032] The motor 31 is started, which drives the rotating shaft 32 to rotate. When the rotating shaft 32 rotates, it drives the internal threaded sleeve 33 to rotate through the meshing of two gears 36. When the internal threaded sleeve 33 rotates, it drives the threaded rod 34 to move left and right. When the threaded rod 34 moves to the left, it drives the extrusion plate 35 to gradually approach the heat exchange plate 212 until it contacts the rightmost heat exchange plate 212. As the threaded rod 34 continues to move, the extrusion plate 35 will gradually exert extrusion force on the heat exchange plate 212, making the heat exchange plates 212 in close contact. When the threaded rod 34 moves to the right, the extrusion plate 35 will gradually move away from the heat exchange plate 212, thereby causing the heat exchange plate 212 to lose extrusion force and become loose. This allows for flexible adjustment of the number of heat exchange plates according to actual needs, and also facilitates cleaning between the heat exchange plates, ensuring thorough descaling, improving equipment performance, and reducing maintenance difficulty and cost.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plate and shell heat exchanger facilitating cleaning, characterized in that: Including shell (1), be provided with dismantling mechanism (2) and extrusion mechanism (3) on the shell (1); The dismantling mechanism (2) includes a head (21) slidingly connected to the left side of the shell (1), a connecting plate (22) fixedly connected to the left side of the shell (1), a connecting groove (23) formed in the right side of the head (21), the left side of the connecting plate (22) extending into the connecting groove (23) and being slidingly connected with the connecting groove (23), a plurality of sliding grooves (24) formed in the outer wall of the head (21), a plurality of positioning pins (25) slidingly connected in the plurality of sliding grooves (24), and a plurality of the positioning pins (25) extending into the connecting plate (22) and being slidingly connected with the connecting plate (22) at one end close to the connecting plate (22), the extrusion mechanism (3) includes a motor (31) fixedly connected to the left side of the head (21).

2. The plate heat exchanger according to claim 1, characterized in that A connecting plate (26) is fixedly connected to each of the plurality of positioning pins (25), and a spring (27) is wound around each of the plurality of positioning pins (25).

3. The plate heat exchanger according to claim 2, characterized in that A fixed plate (28) is fixedly connected to each end of the plurality of positioning pins (25) away from the connecting plate (22), and two bolts (29) are threadedly connected between each of the plurality of fixed plates (28) and the head (21).

4. The plate heat exchanger according to claim 1, characterized in that A sealing strip (210) is fixedly connected to the inner wall of the shell (1), the sealing strip (210) is slidingly connected with the inner wall of the head (21), and a head (211) is fixedly connected to the right side of the shell (1).

5. The plate heat exchanger according to claim 1, characterized in that A plurality of heat exchange plates (212) are slidingly connected to the inner wall of the shell (1), and a plurality of guide rails (213) are fixedly connected to the inner wall of the shell (1).

6. The plate heat exchanger according to claim 5, characterized in that A plurality of guide grooves (214) are formed in each of the plurality of heat exchange plates (212), and a plurality of guide rails (213) penetrate through the plurality of heat exchange plates (212) and are slidingly connected with the corresponding guide grooves (214).

7. The plate heat exchanger according to claim 1, characterized in that An output shaft of the motor (31) is fixedly connected with a rotating shaft (32) through a shaft coupling, the right end of the rotating shaft (32) extends into the head (21) and is rotatably connected with the head (21), an internally threaded sleeve (33) penetrates through the head (21), the internally threaded sleeve (33) is rotatably connected with the head (21), a threaded rod (34) penetrates through the inner wall of the internally threaded sleeve (33), and the threaded rod (34) is threadedly connected with the internally threaded sleeve (33).

8. The plate heat exchanger according to claim 7, characterized in that An extrusion plate (35) is fixedly connected to the right end of the threaded rod (34), a gear (36) is fixedly connected to the internally threaded sleeve (33) and the rotating shaft (32), and the two gears (36) are engaged with each other.

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