Assembled detachable and replaceable plate heat exchanger

Abstract

The invention relates to the technical field of heat exchange equipment, and discloses an assembled detachable plate heat exchanger which comprises a mounting bottom plate, a moving plate is fixedly connected to one side of the top end of the mounting bottom plate, a driving screw is movably connected to the inner side of the moving plate through a bearing, and a fixed plate is in threaded connection with the outer portion of the driving screw. A plurality of heat exchange plates are mounted between the movable plate and the fixed plate, a plurality of mounting plates are fixedly connected to the outer side of the movable plate, the mounting plates are fixedly connected in sequence, a movable plate is slidably connected to the interior of each mounting plate, and a pressing rod is fixedly connected to one side of each movable plate. According to the heat exchanger, the heat exchange plates in the heat exchanger can be replaced according to needs, the whole heat exchanger does not need to be completely disassembled, therefore, disassembly of the whole heat exchanger is avoided, the downtime is shortened, in addition, unnecessary disassembly work is reduced, equipment loss caused by frequent disassembly is avoided, and the service life of the heat exchanger is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange equipment, in particular to an assembled and detachable plate heat exchanger. Background Art

[0002] As a highly efficient heat exchange device, plate heat exchangers are widely used in various industrial fields, such as chemical industry, energy, refrigeration and air conditioning systems. Traditional plate heat exchangers are composed of multiple metal plates, which are stacked on each other through sealing gaskets to form heat exchange channels, and the fluid exchanges heat through these channels. In order to ensure the long-term and efficient operation of the equipment, plate heat exchangers usually need to be cleaned and maintained regularly. In particular, during use, dirt or scaling is easy to accumulate on the surface of the plate, thus affecting the heat exchange efficiency. However, the existing plate heat exchanger design has great limitations in the cleaning and maintenance process.

[0003] Traditional heat exchangers usually adopt a fixed structure. If the heat exchange plate needs to be replaced or cleaned, the entire heat exchanger must be disassembled, which not only takes a lot of time and manpower, but also easily causes damage to the equipment during the disassembly process, leading to problems such as aging of sealing gaskets and wear of plates, which ultimately affects the long-term operation and service life of the equipment. In addition, frequent disassembly operations also increase the maintenance cost of the equipment, and each cleaning may cause equipment downtime, affecting production efficiency.

[0004] Therefore, those skilled in the art have proposed an assembled and replaceable plate heat exchanger to solve the above problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an assembled and detachable plate heat exchanger, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an assembled detachable plate heat exchanger, comprising a mounting base plate, a movable plate is fixedly connected to one side of the top of the mounting base plate, a driving screw is movably connected to the inner side of the movable plate through a bearing, a fixed plate is externally threadedly connected to the driving screw, a plurality of heat exchange plates are installed between the movable plate and the fixed plate, a plurality of mounting plates are fixedly connected to the outer side of the movable plate, a plurality of mounting plates are fixedly connected in sequence, a movable plate is slidably connected to the inside of the mounting plate, a pressing rod is fixedly connected to one side of the movable plate, a spring is fixedly connected to the other side of the movable plate, two swing rods are rotatably connected to the outer side of the movable plate, one end of the swing rod is rotatably connected to a clamping column, a limiting groove is provided on the inner wall of the mounting plate, two clamping columns are slidably connected to the inside of the limiting groove, two connecting columns are fixedly connected to the outer surface of the heat exchange plate, a groove matching the end of the clamping column is provided inside the connecting column, the movable plate is driven to move by pressing the pressing rod, and the swing rod generates a swinging force, so that the clamping column is separated from the inner groove of the connecting column, and the removal of a single heat exchange plate is completed.

[0007] Preferably, two limit frames are fixedly connected to the outer side of the movable plate, and a rack is slidably connected to the inside of the limit frame. A dual-axis servo motor is installed on the top of the limit frame, and one of the output ends of the dual-axis servo motor is fixedly connected to a driving gear, and a cleaning strip is fixedly connected to the bottom of the rack.

[0008] Preferably, the outer sides of the two racks are meshedly connected with the outer side of the driving gear, the inner side of the cleaning strip is provided with bristles, and the inner side of the cleaning strip is in contact with the outer surface of the heat exchange plate.

[0009] Preferably, the other output end of the dual-axis servo motor is fixedly connected to a first synchronous wheel, the outer side of the first synchronous wheel is connected to a second synchronous wheel via a belt, and the bottom of the second synchronous wheel is fixedly connected to a transmission rod.

[0010] Preferably, it also includes a rotating disk and a fixed cylinder, the rotating disk is fixedly connected to the bottom of the transmission rod, the fixed cylinder is fixedly connected to the top of the mounting base plate, the outer eccentric part of the rotating disk is rotatably connected to a connecting rod, the interior of the fixed cylinder is slidably connected to a rubber piston, the outer side of the rubber piston is fixedly connected to a movable rod, one side of the outer side of the fixed cylinder is connected to a first connecting tube and a second connecting tube, and one end of the second connecting tube is fixedly connected to a liquid spraying tube.

[0011] Preferably, one-way valves are disposed inside the first connecting pipe and the second connecting pipe, and the conducting directions of the two one-way valves are opposite.

[0012] Preferably, the side of the movable rod away from the rubber piston is rotatably connected to one end of the connecting rod, one end of the first connecting pipe is connected to the outside of the liquid storage tank, and a plurality of nozzles are arranged on the outer surface of the liquid spraying pipe.

[0013] Preferably, the longitudinal section of the clamping column is set to be square, and one end of the clamping column is plugged into and matched with the inner groove of the connecting column.

[0014] Preferably, one end of the spring away from the pressing rod is fixedly connected to the inner wall of the mounting plate, and one end of the pressing rod away from the movable plate passes through the outer side of the mounting plate and extends to the outside thereof.

[0015] Preferably, two slide grooves are provided on the upper surface of the mounting base plate, and the inner walls of the slide grooves are slidably connected to the bottom of the fixing plate.

[0016] The present invention provides an assembled and replaceable plate heat exchanger, which has the following beneficial effects: 1. The present invention can replace the heat exchange plate as needed without completely disassembling the entire device, thus avoiding disassembly of the entire heat exchanger, reducing downtime and unnecessary disassembly work, avoiding equipment loss caused by frequent disassembly, and thus extending the service life of the equipment.

[0017] 2. The present invention can automatically and evenly clean the heat exchange plate efficiently through the automatic cleaning structure, ensuring that each plate can be fully cleaned, avoiding errors caused by human factors. Secondly, since the scale on the plate can be automatically removed, the efficient heat exchange performance of the heat exchanger can be maintained, thereby reducing energy loss and equipment downtime, and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the installation base plate structure of the present invention; Figure 3 It is a schematic diagram of the structure of the liquid storage tank of the present invention; Figure 4 It is a schematic diagram of the structure of the cleaning strip of the present invention; Figure 5 for Figure 1 The enlarged view of point A in the middle; Figure 6 is a cross-sectional view of a fixed cylinder of the present invention; Figure 7 for Figure 1 The enlarged view of point B in the middle; Figure 8 is a cross-sectional view of the mounting plate of the present invention; Fig. 9 for Figure 8 Enlarged view of point C in the middle.

[0019] Among them, 1. installation base plate; 2. heat exchange plate; 3. movable plate; 4. fixed plate; 501. first synchronous wheel; 502. second synchronous wheel; 503. transmission rod; 601. rotating disk; 602. connecting rod; 603. movable rod; 604. fixed cylinder; 605. liquid storage tank; 606. first connecting pipe; 607. second connecting pipe; 608. rubber piston; 609. liquid spray pipe; 7. driving screw; 801. dual-axis servo motor; 802. limiting frame; 803. rack; 804. driving gear; 805. cleaning strip; 901. installation plate; 902. pressing rod; 903. movable plate; 904. spring; 905. connecting column; 906. limiting groove; 907. clamping column; 908. swing rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Please see attached Figure 1 - Attachment Fig. 9 The embodiment of the present invention provides an assembled detachable plate heat exchanger, comprising a mounting base plate 1, a movable plate 3 is fixedly connected to one side of the top of the mounting base plate 1, a driving screw 7 is movably connected to the inner side of the movable plate 3 through a bearing, a fixed plate 4 is threadedly connected to the outer side of the driving screw 7, a plurality of heat exchange plates 2 are mounted between the movable plate 3 and the fixed plate 4, a plurality of mounting plates 901 are fixedly connected to the outer side of the movable plate 3, the plurality of mounting plates 901 are fixedly connected in sequence, a movable plate 903 is slidably connected to the inner side of the mounting plate 901, a pressing rod 902 is fixedly connected to one side of the movable plate 903, and a spring is fixedly connected to the other side of the movable plate 903 Spring 904, the outer side of the movable plate 903 is rotatably connected to two swing rods 908, one end of the swing rod 908 is rotatably connected to a clamping column 907, the inner wall of the mounting plate 901 is provided with a limiting groove 906, the inner side of the limiting groove 906 is slidably connected to two clamping columns 907, the outer surface of the heat exchange plate 2 is fixedly connected to two connecting columns 905, the connecting column 905 is provided with a groove matching the end of the clamping column 907, the movable plate 903 is driven to move by pressing the pressing rod 902, and the swing rod 908 generates a swinging force, so that the clamping column 907 is detached from the inner groove of the connecting column 905, and the disassembly of a single heat exchange plate 2 is completed.

[0022] Specifically, the mounting base plate 1 serves as the basic supporting component of the entire heat exchanger, and the mounting base plate 1 provides stability and bearing capacity for the heat exchanger. A movable plate 3 is fixedly connected to one side of the top of the mounting base plate 1. The movable plate 3 is used to support and accommodate multiple heat exchange plates 2. At the same time, it also plays the role of sliding and moving during the disassembly and assembly of the heat exchanger. The inner side of the movable plate 3 is movably connected to the drive screw 7 through a bearing to ensure that the drive screw 7 can drive the movable plate 3 to perform linear motion. The external thread of the drive screw 7 is connected to the fixed plate 4, and the fixed plate 4 fixes multiple heat exchange plates 2. This structure allows the distance between the heat exchange plates 2 to be adjusted by rotating the drive screw 7, which facilitates the disassembly and replacement of the heat exchange plates 2.

[0023] The operator first turns the handle at one end of the driving screw 7 to drive the driving screw 7 to rotate. The rotation of the driving screw 7 causes the fixing plate 4 to move axially along the thread of the driving screw 7. In this process, the extrusion state between the multiple heat exchange plates 2 is released, thereby providing space for the subsequent removal of the heat exchange plates 2. The operator finds the mounting plate 901 corresponding to the heat exchange plate 2 to be removed, and presses the pressing rod 902 on the mounting plate 901. The pressing rod 902 drives the movable plate 903 to move inward, forcing the movable plate 903 to slide with the inner wall of the mounting plate 901. The movement of the movable plate 903 drives the two swinging rods 908 connected thereto to shake. The shaking of the swinging rod 908 causes the clamping column 907 to slide along the limiting groove 906 in the mounting plate 901. When the end of the clamping column 907 is out of the groove of the connecting column 905 on the outer surface of the heat exchange plate 2, the fixed state of the heat exchange plate 2 is released. When the clamping column 907 is separated from the connecting column 905, the operator can easily remove the heat exchange plate 2 from its installation position. Since there is no need to disassemble the entire heat exchanger, only a single heat exchange plate 2 needs to be disassembled, which greatly improves the disassembly efficiency, saves time, and reduces equipment loss.

[0024] The longitudinal section of the clamping column 907 is set to be square, and one end of the clamping column 907 is plugged into the inner groove of the connecting column 905. The end of the spring 904 away from the pressing rod 902 is fixedly connected to the inner wall of the mounting plate 901, and the end of the pressing rod 902 away from the movable plate 903 passes through the outer side of the mounting plate 901 and extends to the outside thereof. Two slide grooves are set on the upper surface of the mounting base plate 1, and the inner wall of the slide groove is slidably connected to the bottom of the fixed plate 4.

[0025] Specifically, the longitudinal section of the clamping column 907 is set to be square in order to provide higher stability and precise fit. The square design allows the clamping column 907 to avoid rotation or sliding when it is matched with the groove of the connecting column 905, ensuring that it can stably and reliably fix the heat exchange plate 2 during the operation of the device. The edge of the square clamping column 907 can be firmly embedded in the groove of the connecting column 905, which not only enhances the mechanical strength of the connection, but also can withstand greater pressure, ensuring the stability of the device during operation.

[0026] The coupling mode of the clamping column 907 and the connecting column 905 is that one end of the clamping column 907 is inserted into the groove inside the connecting column 905, forming a plug-in connection. This design enables the clamping column 907 to be quickly and firmly connected to the connecting column 905. The size and shape of the groove provided on the connecting column 905 completely match the square longitudinal section of the clamping column 907, thereby achieving a precise plug-in fit. When the heat exchange plate 2 needs to be disassembled, the clamping column 907 can be easily disengaged from the groove of the connecting column 905 by operating the pressing rod 902 and the spring 904, thereby completing the disassembly of the heat exchange plate 2.

[0027] Two limit racks 802 are fixedly connected to the outer side of the moving plate 3, and a rack 803 is slidably connected inside the limit rack 802. A dual-axis servo motor 801 is installed on the top of the limit rack 802, and a driving gear 804 is fixedly connected to one of the output ends of the dual-axis servo motor 801. A cleaning strip 805 is fixedly connected to the bottom of the rack 803. The outer sides of the two racks 803 are meshed with the outer sides of the driving gear 804, and bristles are arranged on the inner side of the cleaning strip 805, and the inner side of the cleaning strip 805 is in contact with the outer surface of the heat exchange plate 2.

[0028] The other output end of the dual-axis servo motor 801 is fixedly connected to a first synchronous wheel 501 , the outer side of the first synchronous wheel 501 is connected to a second synchronous wheel 502 via a belt, and the bottom of the second synchronous wheel 502 is fixedly connected to a transmission rod 503 .

[0029] Specifically, the limit frame 802 is used to limit the range of motion of the rack 803, ensuring that the rack 803 moves back and forth within a certain track. The limit frame 802 is usually made of a strong material with high wear resistance, which can ensure stability and durability during long-term use. Its inner wall is slidably connected to the rack 803 to form a slide groove structure that allows the rack 803 to move smoothly. The role of the limit frame 802 is not limited to providing a sliding track, but also prevents the rack 803 from exceeding the design range by setting a limit function, ensuring that the movement of the rack 803 does not deviate from the predetermined track, thereby avoiding damage to the system.

[0030] The reciprocating motion of the rack 803 is achieved by the drive of the dual-axis servo motor 801, and the motor drives the rack 803 through the driving gear 804 to complete the cleaning operation. The reciprocating motion of the rack 803 not only drives the cleaning bar 805 to clean the heat exchange plate 2, but also ensures that the entire cleaning process is efficient and stable.

[0031] The cleaning strip 805 is a component fixedly connected to the bottom of the rack 803. Its function is to clean the outer surface of the heat exchange plate 2 through the bristles on the inside. The cleaning strip 805 contacts and rubs against the outer surface of the heat exchange plate 2, and realizes synchronous movement driven by the rack 803, thereby realizing the automatic cleaning function.

[0032] Bristles are arranged on the inner side of the cleaning strip 805. These bristles are made of soft bristle material (such as nylon or other durable synthetic fibers), which can effectively remove dirt, oil or other impurities on the heat exchange plate 2 without scratching or damaging the surface of the heat exchange plate 2.

[0033] It also includes a rotating disk 601 and a fixed cylinder 604. The rotating disk 601 is fixedly connected to the bottom of the transmission rod 503, and the fixed cylinder 604 is fixedly connected to the top of the mounting base plate 1. The outer eccentric part of the rotating disk 601 is rotatably connected to the connecting rod 602. The inside of the fixed cylinder 604 is slidably connected to the rubber piston 608. The outer side of the rubber piston 608 is fixedly connected to the movable rod 603. The outer side of the fixed cylinder 604 is connected to the first connecting pipe 606 and the second connecting pipe 607. One end of the second connecting pipe 607 is fixedly connected to the liquid spraying pipe 609. The first connecting pipe 606 and the second connecting pipe 607 are both provided with a one-way valve inside, and the conduction directions of the two one-way valves are opposite. The side of the movable rod 603 away from the rubber piston 608 is rotatably connected to one end of the connecting rod 602. One end of the first connecting pipe 606 is connected to the outer side of the liquid storage tank 605. The outer surface of the liquid spraying pipe 609 is provided with a plurality of nozzles.

[0034] Specifically, the fixed cylinder 604 is configured as an internal cavity capable of accommodating the sliding of the rubber piston 608, and the sliding connection structure ensures the sealing and smooth movement of the rubber piston 608. The outer side of the fixed cylinder 604 is provided with a first connecting pipe 606 and a second connecting pipe 607, which are respectively connected to the delivery system of the cleaning liquid to ensure that the cleaning liquid can be efficiently transmitted and sprayed during the working process.

[0035] One-way valves are installed in the first connecting pipe 606 and the second connecting pipe 607, and the conduction directions thereof are designed to be opposite, so as to ensure that the flow of the cleaning liquid is unidirectional and to prevent the liquid from flowing back under inappropriate circumstances. The one-way valve in the first connecting pipe 606 ensures that the cleaning liquid can only flow from the liquid storage tank 605 into the fixed cylinder 604, while the one-way valve in the second connecting pipe 607 ensures that the cleaning liquid can only flow out of the fixed cylinder 604 and enter the liquid spraying pipe 609. This design allows the liquid flow to always maintain the correct direction, effectively prevents the liquid from flowing in reverse, and improves the reliability of the entire cleaning system.

[0036] The dual-axis servo motor 801 serves as the power source of the system, and drives the driving gear 804 to swing forward and backward through its bottom output end. The swing drives the two racks 803 to move back and forth along the inner wall of the limit frame 802, and the cleaning bar 805 moves synchronously under the drive of the rack 803. The bristles on the inner side of the cleaning bar 805 contact the surface of the heat exchange plate 2, and remove the dirt on the outer surface of the heat exchange plate 2 through mechanical friction. The top output end of the dual-axis servo motor 801 not only drives the rack 803, but also drives the first synchronous wheel 501 and the second synchronous wheel 502 to rotate through the synchronous wheel system, and further drives the transmission rod 503 to rotate synchronously. The transmission rod 503 drives the rotating disk 601 at the bottom to rotate coaxially, and drives the connecting rod 602 to rotate eccentrically through its eccentric structure, thereby pulling the movable rod 603 to produce reciprocating motion.

[0037] When the movable rod 603 drives the rubber piston 608 to move, the cavity inside the fixed cylinder 604 will generate a negative pressure state due to the movement of the rubber piston 608. The negative pressure sucks the cleaning liquid in the liquid storage tank 605 into the fixed cylinder 604 through the first connecting pipe 606. When the rubber piston 608 moves in the opposite direction, the cleaning liquid is pushed through the second connecting pipe 607 into the liquid spraying pipe 609, and is sprayed onto the outer surface of the heat exchange plate 2 through the nozzle of the liquid spraying pipe 609.

[0038] The cleaning liquid is evenly sprayed onto the surface of the heat exchange plate 2 through the nozzle, and is used in conjunction with the bristles of the synchronously moving cleaning strip 805 to more comprehensively remove dirt from the surface of the heat exchange plate 2. By combining this liquid spraying with mechanical scrubbing, the present invention can significantly improve the cleaning effect, ensure the cleanliness of the heat exchange plate 2, and effectively extend the service life of the equipment.

[0039] Working principle: When using this device specifically, if one of the heat exchange plates 2 needs to be disassembled and replaced, the handle on one end of the drive screw 7 is turned to drive the drive screw 7 to rotate, thereby driving the fixed plate 4 to move along the outer surface of the drive screw 7. At this time, multiple heat exchange plates 2 are no longer in an extruded state. Find the mounting plate 901 corresponding to the heat exchange plate 2 to be disassembled, and press the pressing rod 902 inward to make the movable plate 903 move along the inner wall of the mounting plate 901, thereby driving one end of the two swing rods 908 to swing, and under the traction of the swing rod 908, drive the clamping column 907 to move along the inner wall of the limiting groove 906, thereby disengaging one end of the clamping column 907 from the groove on the inner wall of the connecting column 905. At this time, the operator moves the heat exchange plate 2 outward to complete the disassembly of the heat exchange plate 2, thereby avoiding the disassembly of the entire heat exchanger, reducing downtime and unnecessary disassembly work, avoiding equipment loss caused by frequent disassembly, and thus extending the service life of the equipment; In addition, when it is necessary to clean the dirt on the outer surface of the heat exchange plate 2, by starting the dual-axis servo motor 801, the bottom output end of the dual-axis servo motor 801 drives the driving gear 804 to swing forward and backward, thereby driving the two racks 803 to move back and forth along the inner wall of the limit frame 802. During the movement of the rack 803, the cleaning bar 805 will be driven to move synchronously, so that the bristles on the inner side of the cleaning bar 805 are used to automatically clean the dirt on the outer surface of the heat exchange plate 2. In addition, when the top output end of the dual-axis servo motor 801 is driven, the first synchronous wheel 501 will be driven to rotate, and the second synchronous wheel 502 will rotate synchronously under the action of the belt, further driving the transmission rod 503 to rotate synchronously, thereby driving the rotating disk 601 at the bottom to rotate coaxially, thereby driving the engagement One end of the connecting rod 602 rotates eccentrically, and the movable rod 603 is driven to swing back and forth under the action of the traction force of the connecting rod 602, and further drives the rubber piston 608 to move synchronously. When the rubber piston 608 moves along the direction of the movable rod 603, the interior of the fixed cylinder 604 is in a negative pressure state, and the cleaning liquid inside the liquid storage tank 605 enters the cavity inside the fixed cylinder 604 through the first connecting pipe 606. When the rubber piston 608 moves away from the rubber piston 608, the cleaning liquid inside the fixed cylinder 604 is moved to the spray pipe 609 through the second connecting pipe 607, and is sprayed on the outer surface of the heat exchange plate 2 through the nozzle on the outer surface of the spray pipe 609, and cooperates with the automatic movement of the cleaning strip 805 to improve the cleaning effect of the heat exchange plate 2.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An assembled and replaceable plate heat exchanger, comprising a mounting base plate (1), characterized in that: A movable plate (3) is fixedly connected to one side of the top of the mounting base plate (1); a driving screw (7) is movably connected to the inner side of the movable plate (3) via a bearing; the outer side of the driving screw (7) is threadedly connected to a fixed plate (4); a plurality of heat exchange plates (2) are mounted between the movable plate (3) and the fixed plate (4); a plurality of mounting plates (901) are fixedly connected to the outer side of the movable plate (3); the plurality of mounting plates (901) are fixedly connected in sequence; a movable plate (903) is slidably connected to the inside of the mounting plate (901); a pressing rod (902) is fixedly connected to one side of the movable plate (903); a spring (904) is fixedly connected to the other side of the movable plate (903); the movable plate (903) is ) is rotatably connected to the outside of two swing rods (908), one end of the swing rod (908) is rotatably connected to a clamping column (907), the inner wall of the mounting plate (901) is provided with a limiting groove (906), the inside of the limiting groove (906) is slidably connected to two clamping columns (907), the outer surface of the heat exchange plate (2) is fixedly connected to two connecting columns (905), the inside of the connecting column (905) is provided with a groove matching the end of the clamping column (907), by pressing the pressing rod (902) to drive the movable plate (903) to move, the swing rod (908) generates a swinging force, thereby disengaging the clamping column (907) from the inner groove of the connecting column (905), and completing the disassembly of a single heat exchange plate (2).

2. The assembled and replaceable plate heat exchanger according to claim 1, characterized in that: Two limit frames (802) are fixedly connected to the outer side of the movable plate (3); a rack (803) is slidably connected to the interior of the limit frame (802); a dual-axis servo motor (801) is installed on the top of the limit frame (802); a driving gear (804) is fixedly connected to one of the output ends of the dual-axis servo motor (801); and a cleaning strip (805) is fixedly connected to the bottom of the rack (803).

3. The assembled and replaceable plate heat exchanger according to claim 2, characterized in that: The outer sides of the two racks (803) are meshed with the outer side of the driving gear (804), the inner side of the cleaning strip (805) is provided with bristles, and the inner side of the cleaning strip (805) is in contact with the outer surface of the heat exchange plate (2).

4. The assembled and replaceable plate heat exchanger according to claim 2, characterized in that: The other output end of the dual-axis servo motor (801) is fixedly connected to a first synchronous wheel (501), the outer side of the first synchronous wheel (501) is connected to a second synchronous wheel (502) via a belt, and the bottom of the second synchronous wheel (502) is fixedly connected to a transmission rod (503).

5. The assembled and replaceable plate heat exchanger according to claim 1, characterized in that: It also comprises a rotating disk (601) and a fixed cylinder (604), wherein the rotating disk (601) is fixedly connected to the bottom of the transmission rod (503), and the fixed cylinder (604) is fixedly connected to the top of the mounting base plate (1); a connecting rod (602) is rotatably connected to the outer eccentric portion of the rotating disk (601); a rubber piston (608) is slidably connected to the inside of the fixed cylinder (604); a movable rod (603) is fixedly connected to the outer side of the rubber piston (608); a first connecting tube (606) and a second connecting tube (607) are connected to one side of the outer side of the fixed cylinder (604); and a liquid spraying tube (609) is fixedly connected to one end of the second connecting tube (607).

6. The assembled and replaceable plate heat exchanger according to claim 5, characterized in that: One-way valves are provided inside the first connecting pipe (606) and the second connecting pipe (607), and the conduction directions of the two one-way valves are opposite.

7. The assembled and replaceable plate heat exchanger according to claim 5, characterized in that: The side of the movable rod (603) away from the rubber piston (608) is rotatably connected to one end of the connecting rod (602), one end of the first connecting pipe (606) is connected to the outside of the liquid storage tank (605), and the outer surface of the liquid spraying pipe (609) is provided with a plurality of spray heads.

8. The assembled and replaceable plate heat exchanger according to claim 1, characterized in that: The longitudinal section of the clamping column (907) is arranged to be square, and one end of the clamping column (907) is plugged into and matched with the inner groove of the connecting column (905).

9. The assembled and replaceable plate heat exchanger according to claim 1, characterized in that: One end of the spring (904) away from the pressing rod (902) is fixedly connected to the inner wall of the mounting plate (901), and one end of the pressing rod (902) away from the movable plate (903) penetrates the outer side of the mounting plate (901) and extends to the outside thereof.

10. The assembled and replaceable plate heat exchanger according to claim 1, characterized in that: Two sliding grooves are provided on the upper surface of the mounting base plate (1), and the inner walls of the sliding grooves are slidably connected to the bottom of the fixing plate (4).

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