Efficient plate heat exchanger convenient to clean and manage

Abstract

The invention discloses an efficient plate heat exchanger convenient to clean and manage, and relates to the technical field of fixed plate heat exchange equipment. The efficient plate heat exchanger convenient to clean and manage comprises a supporting frame, a transverse plate is fixedly connected to the top of the supporting frame, rectangular grooves are formed in the two sides of the inner wall of the supporting frame, a heat exchange plate mechanism is inserted into the supporting frame through the rectangular grooves, and a pipe inlet and outlet mechanism is inserted into the front face of the heat exchange plate mechanism; the top of the transverse plate of the supporting frame is fixedly connected with a vibration dredging mechanism, the vibration dredging mechanism comprises a driver, and the driver is located at the top of the transverse plate of the supporting frame. According to the efficient plate heat exchanger convenient to clean and manage, by arranging the impact head, the eccentric blade column and the vibration dredging mechanism, a worker can conveniently disassemble and clean the heat exchange mechanism, dredging of the medium channel and self-cleaning of the heat exchange device are achieved, and the heat exchange efficiency and the heat exchange effect of the heat exchanger are improved.

Description

Technical Field

[0001] The invention relates to the technical field of fixed plate heat exchange equipment, in particular to a high-efficiency plate heat exchanger that is easy to clean and maintain. Background Art

[0002] A heat exchanger is a device used to transfer heat from one fluid to another. A heat exchanger usually has two independent fluid channels, in which the hot fluid and the cold fluid flow respectively, and the heat is transferred through the channel wall. Among various heat exchangers, the plate heat exchanger is an efficient type of heat exchanger with a compact structure, high heat transfer coefficient, and a wide range of application prospects.

[0003] The patent application with publication number CN117739719A discloses a high-efficiency plate heat exchanger, including two side plates, a plurality of A plates and a plurality of B plates, wherein the plurality of A plates and the plurality of B plates are alternately stacked between the two side plates, an A medium channel is formed between the upper surface of each A plate and the upper adjacent B plate, a B medium channel is formed between the upper surface of each B plate and the upper adjacent A plate, all A bent edges are arranged in the same direction and alternately stacked with all B straight edges, all B bent edges are arranged in the same direction and alternately stacked with all A straight edges, an A upper folded edge is separated from the lower adjacent B plate to form a B medium channel outlet, an A lower folded edge is separated from the upper adjacent B plate to form an A medium channel inlet, an B upper folded edge is separated from the upper surface of the lower adjacent A plate to form an A medium channel outlet, and a B lower folded edge is separated from the lower surface of the upper adjacent A plate to form a B medium channel inlet;

[0004] The high-efficiency plate heat exchanger provided by this patent has a small cross-sectional area of ​​the medium channel and is inconvenient to clean. After long-term use, the medium channel is prone to blockage, which in turn affects the heat exchange efficiency and reliability of the heat exchange equipment. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a high-efficiency plate heat exchanger that is easy to clean and maintain, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an efficient plate heat exchanger that is easy to clean and maintain, comprising a support frame, a horizontal plate is fixedly connected to the top of the support frame, rectangular grooves are opened on both sides of the inner wall of the support frame, a heat exchange plate mechanism is plugged into the support frame through the rectangular groove, an inlet and outlet pipe mechanism is plugged into the front of the heat exchange plate mechanism, a vibration dredging mechanism is fixedly connected to the top of the horizontal plate of the support frame, and the vibration dredging mechanism includes a driver, and the driver is located at the top of the horizontal plate of the support frame;

[0007] The heat exchange plate mechanism comprises:

[0008] A lower sealing plate, which is inserted into the support frame and is used to form the lower half of the medium channel;

[0009] The upper sealing plate is inserted into the support frame, and the bottom of the upper sealing plate is clamped on the top of the lower sealing plate to form the upper half of the medium channel and cooperate with the lower sealing plate to clear the inside of the medium pipeline under the action of the medium flow.

[0010] Preferably, the support frame, the inlet and outlet pipe mechanism, and the heat exchange plate mechanism are all made of stainless steel. There are two inlet and outlet pipe mechanisms, and the other one is plugged into the back of the heat exchange plate mechanism.

[0011] Preferably, the inlet and outlet pipe mechanism includes an outlet pipe, the outlet pipe includes an outlet nozzle, the outlet nozzle is plugged into the heat exchange plate mechanism, the front of the outlet nozzle is connected to an outlet pipe body, the left side of the outlet pipe body is plugged with a flow sensor for detecting the flow of the medium, the flow sensor is electrically connected to the driver through a wire, and the right side of the outlet pipe body is connected to an outlet.

[0012] Preferably, a rectangular through hole is connected to the front of the outlet tube body, and the number of the outlet nozzles is four, two in a group, one group is located at the top of the rectangular through hole of the outlet tube body, and the other group is located at the bottom of the rectangular through hole of the outlet tube body.

[0013] Preferably, an inlet pipe is plugged into the front of the heat exchange plate mechanism, the inlet pipe is located on the top of the outlet pipe, the inlet pipe includes an inlet nozzle, the inlet nozzle is connected to an inlet pipe body on the front, the inlet pipe body is connected to a flange on the front for connecting a medium delivery pipeline, the left and right sides of the inlet pipe body are rotatably connected to an eccentric blade column for stirring the medium, four blades of different lengths are fixedly connected to the surface of the eccentric blade column, and the distances from the tips of the four blades to the axis of the eccentric blade column decrease successively in the counterclockwise direction.

[0014] Preferably, the number of the inlet nozzles is four, two in a group, one group is located at the top of the outlet tube body, and the other group is located in the rectangular through hole of the outlet tube body, and a bracket is fixedly connected to the bottom of the inlet tube body.

[0015] Preferably, a medium channel is formed between the top of the lower sealing plate, the bottom of the upper sealing plate and the inside of the support frame. There are four lower sealing plates and four upper sealing plates, and they are closely arranged in the vertical direction inside the support frame. From the top to the bottom of the support frame are the first, second, third and fourth medium channels respectively. The outlet pipe at the front and the inlet pipe at the back are plugged into the second and fourth medium channels, and the inlet pipe at the front and the outlet pipe at the back are plugged into the first and third medium channels.

[0016] Preferably, the lower sealing plate includes a lower plate body, the left and right sides of the lower plate body are inserted into the rectangular grooves inside the support frame, the top of the lower plate body is fixedly connected with an elastic clamping tube, the top of the lower plate body is fixedly connected with an elastic strip plate, and a circular blind hole is opened on the top of the lower plate body.

[0017] Preferably, the upper sealing plate includes an upper plate body, a rigid snap-in strip is fixedly connected to the bottom of the upper plate body, a connecting column is fixedly connected to the bottom of the upper plate body, the connecting column includes a metal column, a rectangular groove is opened on the front of the top of the metal column, a rubber cylindrical block is fixedly connected to the bottom of the metal column, an eccentric impact head is rotatably connected to the surface of the metal column, a rectangular block is fixedly connected to the inside of the circular through hole on the top of the eccentric impact head, the width of the rectangular block is smaller than the width of the rectangular groove of the metal column, and is used to limit the rotation angle of the eccentric impact head, the eccentric impact head is located on the top of the rubber cylindrical block, the surface of the rigid snap-in strip is snapped into the inside of the elastic snap-in tube, and the metal column at the bottom of the connecting column is inserted into the inside of the circular blind hole on the top of the lower plate body.

[0018] Preferably, the vibration dredging mechanism includes a vibration motor, which is fixedly connected to the top of the support frame cross plate. There are two vibration motors and they are evenly distributed on the top of the support frame cross plate. The vibration motor is electrically connected to the driver through a wire. An eccentric impact wheel is fixedly connected to the surface of the motor shaft of the vibration motor, which is used to impact the surface of the upper sealing plate to generate vibration under the drive of the vibration motor. The eccentric impact wheel is made of rubber. There are four eccentric impact wheels, and all of them are located on the top of the upper plate body.

[0019] The present invention provides a high-efficiency plate heat exchanger that is easy to clean and maintain. It has the following beneficial effects:

[0020] 1. This kind of efficient plate heat exchanger which is easy to clean and maintain realizes the modularization of the heat exchange device by setting the upper and lower clamping joints to achieve matching heat exchange plates. With the support frame with sliding plug, it is convenient for the staff to disassemble and clean the heat exchange mechanism, thereby improving the maintainability and reliability of the heat exchange device and improving the heat exchange effect of the heat exchange device.

[0021] 2. This kind of high-efficiency plate heat exchanger which is easy to clean and maintain has an impact head arranged in the heat exchange plate, which can swing under the action of medium flow, thereby clearing the blockage in the medium channel. The impact head and the strip plate cooperate to generate vibration, thereby utilizing vibration to loosen the blockage in the medium channel, promote medium flow, realize self-cleaning of the heat exchange device, and improve the heat exchange effect of the heat exchanger.

[0022] 3. This high-efficiency plate heat exchanger, which is easy to clean and maintain, realizes preliminary stirring of the heat exchange medium before it enters the heat exchanger by setting an eccentric blade column, preventing the accumulation of debris inside the heat exchange medium inside the inlet pipe, and reducing the deposition of impurities inside the heat exchange medium in the medium channel. The inlet pipe cooperates with the outlet pipe to further increase the heat exchange area and improve the heat exchange efficiency.

[0023] 4. This high-efficiency plate heat exchanger that is easy to clean and maintain realizes real-time monitoring of the blockage status of the heat exchanger by setting a vibration dredging mechanism and cooperating with a flow rate sensor of the outlet pipe, and adjusts the vibration output amplitude according to the flow rate of the medium in the heat exchanger, thereby improving the intelligence level of the heat exchanger and further improving the heat exchange efficiency and heat exchange effect of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure on the left side of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure on the right side of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall structure of the inlet and outlet pipe mechanism of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the inlet pipe of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall structure of the eccentric blade column of the present invention;

[0029] Figure 6 This is a schematic diagram of the overall structure of the outlet pipe of the present invention;

[0030] Figure 7 This is a cross-sectional view of the internal structure of the outlet pipe of the present invention;

[0031] Figure 8 A schematic diagram of the positional relationship between the heat exchange plate mechanism and the support frame of the present invention;

[0032] Fig. 9 This is a schematic diagram of the top structure of the lower sealing plate of the present invention;

[0033] Fig.10 For the present invention Fig. 9 A schematic diagram of the structure at B in FIG.

[0034] Fig.11 This is a schematic diagram of the overall structure of the bottom of the upper sealing plate of the present invention;

[0035] Fig.12 A cross-sectional view showing the positional relationship between the connecting column and the eccentric impact head of the present invention;

[0036] Fig.13 For the present invention Figure 1 A schematic diagram of the enlarged structure in FIG.

[0037] In the figure: 1. support frame; 2. inlet and outlet pipe mechanism; 21. outlet pipe; 211. outlet nozzle; 212. outlet pipe body; 213. flow sensor; 214. outlet; 22. inlet pipe; 221. inlet nozzle; 222. inlet pipe body; 223. eccentric blade column; 3. heat exchange plate mechanism; 31. lower sealing plate; 311. lower plate body; 312. elastic clamping tube; 313. elastic strip plate; 32. upper sealing plate; 321. upper plate body; 322. rigid clamping strip; 323. connecting column; 324. eccentric impact head; 4. vibration dredging mechanism; 41. driver; 42. vibration motor; 43. eccentric impact wheel. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] Embodiment 1

[0041] See also Figure 1-7 The present invention provides a technical solution: a high-efficiency plate heat exchanger that is easy to clean and maintain, comprising a support frame 1, the support frame 1 is the installation base of the entire heat exchanger, a horizontal plate is fixedly connected to the top of the support frame 1, rectangular grooves are opened on both sides of the inner wall of the support frame 1, a heat exchange plate mechanism 3 is plugged into the support frame 1 through the rectangular groove, and an inlet and outlet pipe mechanism 2 is plugged into the front of the heat exchange plate mechanism 3;

[0042] There are two inlet and outlet pipe mechanisms 2, the other of which is plugged into the back of the heat exchange plate mechanism 3. The inlet and outlet pipe mechanism 2 includes an outlet pipe 21, and the outlet pipe 21 includes an outlet nozzle 211. The outlet nozzle 211 is plugged into the inside of the heat exchange plate mechanism 3. The front of the outlet nozzle 211 is connected to an outlet pipe body 212. A flow sensor 213 is plugged into the left side of the outlet pipe body 212 for detecting the flow of the medium. The flow sensor 213 is electrically connected to the driver 41 through a wire, and the right side of the outlet pipe body 212 is connected to an outlet port 214.

[0043] The front of the heat exchange plate mechanism 3 is plugged with an inlet pipe 22, which is located at the top of the outlet pipe 21. The inlet pipe 22 includes an inlet nozzle 221, and the front of the inlet nozzle 221 is connected to an inlet pipe body 222, and the front of the inlet pipe body 222 is connected to a flange for connecting a medium delivery pipeline. The left and right sides of the inlet pipe body 222 are rotatably connected to an eccentric vane column 223 for stirring the medium. Four blades of different lengths are fixedly connected to the surface of the eccentric vane column 223, and the distances from the tips of the four blades to the axis of the eccentric vane column 223 decrease in turn in the counterclockwise direction. There are four inlet nozzles 221, two in a group, one of which is located at the top of the outlet pipe body 212, and the other is located in the rectangular through hole of the outlet pipe body 212. A bracket is fixedly connected to the bottom of the inlet pipe body 222;

[0044] The support frame 1 , the inlet and outlet pipe mechanism 2 , and the heat exchange plate mechanism 3 are all made of stainless steel. The top of the horizontal plate of the support frame 1 is fixedly connected with a vibration dredging mechanism 4 , which includes a driver 41 , and the driver 41 is located at the top of the horizontal plate of the support frame 1 .

[0045] When in use, connect the delivery pipe of one medium to the flange of the inlet pipe body 222 at the front, and connect the delivery pipe of another medium to the flange of the inlet pipe body 222 at the back, then start the vibration dredging mechanism 4 through the driver 41, and let the heat exchange medium enter the heat exchanger from the inlet pipe body 222. The heat exchange medium passes through the eccentric blade column 223, driving the eccentric blade column 223 to rotate. After the eccentric blade column 223 rotates, it stirs the heat exchange medium and disperses the impurities in the heat exchange medium. Since the eccentric blade column 223 is an eccentric structure, when it rotates, Vibration will be generated, and the vibration is transmitted to the surface of the heat exchange medium, which promotes the flow of the heat exchange medium and thus improves the heat exchange efficiency. After the heat exchange medium passes through the heat exchange plate mechanism 3, heat is transferred through the surface of the heat exchange plate mechanism 3. Then the heat exchange medium flows to the outlet nozzle 211 at the other end, enters the outlet pipe body 212 from the outlet nozzle 211, and finally discharges the heat exchanger from the outlet 214. During this period, the heat exchange medium flows through the flow sensor 213, and the flow sensor 213 feeds back the flow rate data of the heat exchange medium to the driver 41, so that the driver 41 can control the working state of the vibration dredging mechanism 4.

[0046] Embodiment 2

[0047] See also Figure 1-12 Based on the first embodiment, the present invention provides a technical solution: the heat exchange plate mechanism 3 includes:

[0048] The lower sealing plate 31 is inserted into the support frame 1, and a medium channel is formed between the top of the lower sealing plate 31 and the bottom of the upper sealing plate 32 and the inside of the support frame 1. There are four lower sealing plates 31 and four upper sealing plates 32, and they are closely arranged in the vertical direction inside the support frame 1. From the top to the bottom of the support frame 1, there are the first, second, third, and fourth medium channels, wherein the first and third medium channels are used to pass the same medium, and the second and fourth medium channels are used to pass another medium. The outlet pipe 21 and the position The inlet pipe 22 at the back is plugged into the second and fourth medium channels, the inlet pipe 22 at the front and the outlet pipe 21 at the back are plugged into the first and third medium channels, the lower sealing plate 31 includes a lower plate body 311, the left and right sides of the lower plate body 311 are plugged into the rectangular groove inside the support frame 1, the top of the lower plate body 311 is fixedly connected with an elastic clamping tube 312, the top of the lower plate body 311 is fixedly connected with an elastic strip plate 313, the top of the lower plate body 311 is provided with a circular blind hole, and the lower sealing plate 31 is used to form the lower half of the medium channel;

[0049] The upper sealing plate 32 is inserted into the support frame 1. The upper sealing plate 32 includes an upper plate body 321. The bottom of the upper plate body 321 is fixedly connected with a rigid snap-on strip 322. The bottom of the upper plate body 321 is fixedly connected with a connecting column 323. The connecting column 323 includes a metal column. A rectangular groove is provided on the front of the top of the metal column. A rubber cylindrical block is fixedly connected to the bottom of the metal column. An eccentric impact head 324 is rotatably connected to the surface of the metal column for impacting the elastic strip 313 to generate vibration. The top of the eccentric impact head 324 is round. A rectangular block is fixedly connected inside the through hole, and the width of the rectangular block is smaller than the width of the rectangular groove of the metal column, which is used to limit the rotation angle of the eccentric impact head 324. The eccentric impact head 324 is located on the top of the rubber cylindrical block, and the surface of the rigid clamping strip 322 is clamped in the elastic clamping tube 312. The metal column at the bottom of the connecting column 323 is inserted into the circular blind hole on the top of the lower plate body 311. The upper sealing plate 32 is used to form the upper half of the medium channel, and cooperates with the lower sealing plate 31 under the action of the medium flow to realize the dredging of the inside of the medium pipeline.

[0050] When in use, before the heat exchange begins, the rigid card strip 322 is inserted into the elastic card tube 312 from the top of the elastic card tube 312. Since the elastic card tube 312 is made of stainless steel and has a certain elasticity, the two sides of the elastic card tube 312 will undergo elastic deformation during the entry of the rigid card strip 322 until the rigid card strip 322 is fully inserted and returns to its original state. The interior of the elastic card tube 312 fits the surface of the rigid card strip 322 to achieve fixation. Then, the assembled lower sealing plate 31 and upper sealing plate 32 are slid into the support frame 1 in sequence along the rectangular groove inside the support frame 1. Then, the outlet nozzle 211 is respectively inserted into the second and fourth medium channels on the front side and the first and third medium channels on the back side, and the inlet nozzle 221 is respectively inserted into the first and third medium channels on the front side and the second and fourth medium channels on the back side, thereby completing the installation. After the installation is completed, the process of introducing the heat exchange medium in Example 1 is performed;

[0051] During the heat exchange process, one medium enters the first and third medium channels from the inlet pipe 22 on the front side and is discharged from the outlet pipe 21 on the back side, and the other medium enters the second and fourth medium channels from the inlet pipe 22 on the back side and is discharged from the outlet pipe 21 on the front side. During the flow of the two mediums in their respective medium channels, heat is transferred from one medium to the other medium through the lower plate 311 and the upper plate 321, thereby achieving heat exchange and transfer.

[0052] When the medium flows in the medium channel, it will flow through the eccentric impact head 324. The eccentric impact head 324 will start to rotate left and right under the action of the medium flow. Since the rectangular block of the internal through hole of the eccentric impact head 324 is located inside the rectangular groove of the connecting column 323, the swing amplitude of the eccentric impact head 324 is limited, and the eccentric impact head 324 will hit the elastic strip 313 under the action of the medium flow. Since the elastic strip 313 is made of stainless steel and has a certain elasticity, it will have a slight high-frequency swing after being hit by the eccentric impact head 324, thereby generating a certain vibration, which will disturb and stir the medium in the medium channel and also stir and clear the blocked parts and blockages, thereby achieving self-cleaning and improving the convenience of cleaning and maintenance.

[0053] Embodiment 3

[0054] See also Figure 1-13 Based on the first and second embodiments, the present invention provides a technical solution:

[0055] The vibration dredging mechanism 4 includes a vibration motor 42, which is fixedly connected to the top of the horizontal plate of the support frame 1. There are two vibration motors 42 and they are evenly distributed on the top of the horizontal plate of the support frame 1. The vibration motor 42 is electrically connected to the driver 41 through a wire. An eccentric impact wheel 43 is fixedly connected to the surface of the motor shaft of the vibration motor 42, which is used to impact the surface of the upper sealing plate 32 to generate vibration under the drive of the vibration motor 42. The eccentric impact wheel 43 is made of rubber. There are four eccentric impact wheels 43, and the eccentric impact wheels 43 are all located on the top of the upper plate body 321 at the top.

[0056] When in use, when the medium flows through the flow sensor 213 located inside the outlet pipe body 212, its flow rate data will be transmitted back to the driver 41. When the medium flow rate decreases, the flow rate data of the flow sensor 213 is transmitted back to the driver 41. The driver 41 controls the vibration motor 42 to start and drive the eccentric impact wheel 43 to rotate. Driven by the vibration motor 42, the eccentric impact wheel 43 periodically impacts the top of the upper plate body 321 located below the vibration motor 42, generating periodic vibration. The vibration gradually propagates downward through the rigid clip strip 322 and the support frame 1, and cooperates with the eccentric impact head 324 and the elastic strip plate 313 to clear the blockage until the flow rate data returns to the normal range, and the vibration motor 42 stops rotating under the control of the driver 41.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency plate heat exchanger that is easy to clean and maintain, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a transverse plate, and rectangular grooves are provided on both sides of the inner wall of the support frame (1). The support frame (1) is plugged with a heat exchange plate mechanism (3) through the rectangular grooves, and the front of the heat exchange plate mechanism (3) is plugged with an inlet and outlet pipe mechanism (2). The top of the transverse plate of the support frame (1) is fixedly connected to a vibration dredging mechanism (4), and the vibration dredging mechanism (4) comprises a driver (41), and the driver (41) is located at the top of the transverse plate of the support frame (1); The heat exchange plate mechanism (3) comprises: A lower sealing plate (31), the lower sealing plate (31) being inserted into the interior of the support frame (1) and being used to form the lower half of the medium channel; An upper sealing plate (32) is inserted into the interior of the support frame (1), and the bottom of the upper sealing plate (32) is snap-fitted to the top of the lower sealing plate (31) to form the upper half of the medium channel and cooperate with the lower sealing plate (31) to clear the interior of the medium pipeline under the action of the medium flow.

2. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 1 is characterized by: The support frame (1), the inlet and outlet pipe mechanism (2), and the heat exchange plate mechanism (3) are all made of stainless steel. There are two inlet and outlet pipe mechanisms (2), and the other one is plugged into the back of the heat exchange plate mechanism (3).

3. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 1 is characterized by: The inlet and outlet pipe mechanism (2) comprises an outlet pipe (21), the outlet pipe (21) comprises an outlet nozzle (211), the outlet nozzle (211) is plugged into the interior of the heat exchange plate mechanism (3), the front of the outlet nozzle (211) is connected to an outlet pipe body (212), the left side of the outlet pipe body (212) is plugged with a flow sensor (213) for detecting the flow of a medium, the flow sensor (213) is electrically connected to the driver (41) via a wire, and the right side of the outlet pipe body (212) is connected to an outlet port (214).

4. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 3 is characterized by: The outlet pipe body (212) is connected to a rectangular through hole on its front side, and the number of the outlet nozzles (211) is four, two in a group, one group is located at the top of the rectangular through hole of the outlet pipe body (212), and the other group is located at the bottom of the rectangular through hole of the outlet pipe body (212).

5. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 4 is characterized in that: The heat exchange plate mechanism (3) is plugged with an inlet pipe (22) at the front, the inlet pipe (22) is located at the top of the outlet pipe (21), the inlet pipe (22) comprises an inlet nozzle (221), the inlet nozzle (221) is connected to an inlet pipe body (222) at the front, the inlet pipe body (222) is connected to a flange at the front for connecting to a medium delivery pipeline, the inlet pipe body (222) is rotatably connected to eccentric blade columns (223) on the left and right sides inside for stirring the medium, four blades of different lengths are fixedly connected to the surface of the eccentric blade column (223), and the distances from the tips of the four blades to the axis of the eccentric blade column (223) decrease in sequence in the counterclockwise direction.

6. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 5 is characterized by: The number of the inlet nozzles (221) is four, two in a group, one group is located at the top of the outlet tube body (212), and the other group is located in the rectangular through hole of the outlet tube body (212), and a bracket is fixedly connected to the bottom of the inlet tube body (222).

7. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 6 is characterized by: A medium channel is formed between the top of the lower sealing plate (31) and the bottom of the upper sealing plate (32) and the inside of the support frame (1); the lower sealing plates (31) and the upper sealing plates (32) are four each and are closely arranged in the vertical direction inside the support frame (1); the first, second, third and fourth medium channels are arranged in order from the top to the bottom of the support frame (1); the outlet pipe (21) located at the front and the inlet pipe (22) located at the back are plugged into the inside of the second and fourth medium channels; the inlet pipe (22) located at the front and the outlet pipe (21) located at the back are plugged into the first and third medium channels.

8. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 7 is characterized by: The lower sealing plate (31) comprises a lower plate body (311), the left and right sides of the lower plate body (311) being inserted into rectangular grooves inside the support frame (1), the top of the lower plate body (311) being fixedly connected to an elastic clamping tube (312), the top of the lower plate body (311) being fixedly connected to an elastic strip plate (313), and the top of the lower plate body (311) being provided with a circular blind hole.

9. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 8, characterized in that: The upper sealing plate (32) comprises an upper plate body (321), the bottom of the upper plate body (321) being fixedly connected to a rigid snap-fit ​​strip (322), the bottom of the upper plate body (321) being fixedly connected to a connecting column (323), the connecting column (323) comprising a metal column, the top front of the metal column being provided with a rectangular groove, the bottom of the metal column being fixedly connected to a rubber cylindrical block, the surface of the metal column being rotatably connected to an eccentric impact head (324), the top circular through hole of the eccentric impact head (324) being fixedly connected to a rectangular block, the width of the rectangular block being smaller than the width of the rectangular groove of the metal column and being used to limit the rotation angle of the eccentric impact head (324), the eccentric impact head (324) being located at the top of the rubber cylindrical block, the surface of the rigid snap-fit ​​strip (322) being snap-fitted to the inside of the elastic snap-fit ​​tube (312), and the bottom metal column of the connecting column (323) being inserted into the inside of the circular blind hole at the top of the lower plate body (311).

10. The high-efficiency plate heat exchanger that is easy to clean and maintain according to claim 9, characterized in that: The vibration dredging mechanism (4) comprises a vibration motor (42), the vibration motor (42) being fixedly connected to the top of the horizontal plate of the support frame (1), the number of the vibration motors (42) being two and being evenly distributed on the top of the horizontal plate of the support frame (1), the vibration motor (42) being electrically connected to the driver (41) via a wire, the motor shaft surface of the vibration motor (42) being fixedly connected to an eccentric impact wheel (43) for impacting the surface of the upper sealing plate (32) to generate vibration under the drive of the vibration motor (42), the eccentric impact wheel (43) being made of rubber, the number of the eccentric impact wheels (43) being four, and the eccentric impact wheels (43) being all located on the top of the upper plate body (321) at the top.

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