Plate heat exchanger

Abstract

The embodiment of the invention provides a plate heat exchanger, and relates to the technical field of heat exchanger equipment. The plate heat exchanger comprises a mounting groove plate, the top of the mounting groove plate is fixedly connected with a fixed supporting frame, the interior of the mounting groove plate is slidably connected with a convex sliding block, and the top of the convex sliding block is fixedly connected with a heat exchanger body. The cross-shaped rotating plate drives the cleaning shaft rod to move with the rotating rod as the axis, due to the fact that the gear is meshed with the fixed annular toothed plate, the cleaning shaft rod can rotate while rotating along with the cross-shaped rotating plate, due to the rotation motion, the cleaning brush on the cleaning shaft rod can clean a heat exchanger channel in all directions, it is guaranteed that each corner can be effectively cleaned, and the cleaning effect is good. The scale is helped to fall off from the channel wall, and the fallen scale is discharged out of the heat exchanger along with flowing of fluid.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchanger equipment, and in particular relates to a plate heat exchanger. Background Art

[0002] A plate heat exchanger is a device used for heat exchange between liquids or gases. It consists of a series of metal plates with multiple narrow channels formed between the metal plates. The hot medium and the cold medium flow in adjacent channels respectively and transfer heat through the metal plates, but the two do not directly contact or mix.

[0003] In the prior art (the announcement number is CN117073424B, and the patent name is a patent application for a plate heat exchanger), the inside of the shell is sealed by a sealing assembly. During the simultaneous rotation of one end of the three third transmission rods toward the middle, the three first transmission rods, the connecting rod and the first sealing block are pulled to move toward the inside of the shell, so that the three first sealing blocks are separated from the bottom of the limit ring. At this time, the three connecting pipes are respectively connected to the inside of the shell, and at the same time, the second sealing block and the first fixing frame are used to seal one end of the inside of the shell. The hot water inside the shell enters the inside of the three connecting pipes respectively, and is sprayed out through the other end of the three connecting pipes. The sprayed water is sprayed out from the other side of the filter plate. In the process of implementing this technical solution, it is found that there are at least the following problems in the prior art.

[0004] During long-term operation, especially when dealing with water-based fluids containing minerals or impurities, scale is easily formed on the wall of the heat exchanger. The thermal conductivity of scale is much lower than that of steel. Therefore, the accumulation of scale will significantly reduce the heat transfer effect of the heat exchanger, resulting in a significant decrease in heat exchange efficiency. As the scale layer thickens, the cross-sectional area of ​​the flow channel decreases, and the friction loss when the fluid passes through increases, resulting in an increase in the energy consumption of the pumping system. In extreme cases, the accumulation of scale may completely block the flow channel of the heat exchanger, resulting in the inability of the fluid to pass normally. Traditional plate heat exchangers usually need to be disassembled and cleaned regularly. However, frequent disassembly and reassembly may cause damage to the equipment. For example, the sealing gasket may age or be damaged during the disassembly process, resulting in leakage problems; the connection between the heat exchanger plates may also loosen due to repeated disassembly and assembly, affecting the sealing and heat transfer effect of the equipment. The disassembly and cleaning process is not only time-consuming and labor-intensive, but also increases maintenance costs. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art that a plate heat exchanger needs to be regularly disassembled for cleaning.

[0006] To achieve the above object, the specific technical solution of the present invention is as follows: a plate heat exchanger, comprising a mounting groove plate, the top of which is fixedly connected to a fixed support frame, the interior of which is slidably connected to a convex slider, the top of which is fixedly connected to a heat exchanger body, and further comprising:

[0007] A reciprocating mechanism, the reciprocating mechanism includes a servo motor fixedly connected to the right side of a fixed support frame, the output end of the servo motor is fixedly connected to an oblique rotating member, the outer wall of the oblique rotating member is rotatably connected to a reciprocating pull plate, the interior of the reciprocating pull plate is rollingly connected to a ball 1, the outer wall of the ball 1 is fixedly connected to a connecting rod, the end of the connecting rod away from the ball 1 is rotatably connected to a ball 2, the outer wall of the ball 2 is rollingly connected to a mounting block, and the bottom of the mounting block is fixedly connected to the top of the heat exchanger body.

[0008] Preferably, a driving mechanism is provided on the right side of the heat exchanger body, and the driving mechanism includes a mounting frame fixedly connected to the right side of the heat exchanger body, a sprocket is rotatably connected to the through hole of the mounting frame, a chain is sleeved on the outer wall of the sprocket, and a driving rotating rod is transmission-connected to the inner wall of the chain, and the driving rotating rod is fixedly connected to the side of the oblique rotating part away from the servo motor, and a limiting groove is provided on the outer wall of the driving rotating rod, and the limiting groove is clamped with the sprocket.

[0009] Preferably, a connecting cylinder is fixedly connected to the right side of the heat exchanger body, the inner wall of the chain is transmission-connected to sprocket 2, a rotating rod is fixedly connected to the central axis of sprocket 2, the left end of the rotating rod passes through the outer wall of the connecting cylinder and extends to the interior, and a belt is sleeved on the outer wall of the rotating rod.

[0010] Preferably, the inner wall of the belt is transmission-connected with a reciprocating threaded rotating rod, the left end of the reciprocating threaded rotating rod passes through the outer wall of the connecting tube and extends to the inner side, the outer wall of the reciprocating threaded rotating rod is threadedly connected with a reciprocating moving plate, and the inner wall of the reciprocating moving plate is slidably connected with the outer wall of the rotating rod.

[0011] Preferably, a cleaning mechanism is provided on the left side of the reciprocating plate, and the cleaning mechanism includes a connecting slide fixedly connected to the left side of the reciprocating plate, the interior of the connecting slide is slidably connected with an annular convex slide plate, and the outer surface of the annular convex slide plate is fixedly connected with a cross rotating plate.

[0012] Preferably, the inner wall of the cross rotating plate is fixedly connected to a limiting sliding block, the outer wall of the rotating rod is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to the side wall of the limiting sliding block.

[0013] Preferably, a cleaning shaft is rotatably connected to the through hole of the cross-turn plate, a gear is fixedly connected to the outer wall of the cleaning shaft, a fixed annular gear plate is meshingly connected to the side wall of the gear, the right side of the fixed annular gear plate is fixedly connected to the left side of the reciprocating plate, and a cleaning brush is fixedly connected to the outer wall of the cleaning shaft.

[0014] Preferably, the outer wall of the reciprocating plate is provided with a knocking mechanism, and the knocking mechanism includes an L-shaped fixed shaft fixedly connected to the outer wall of the reciprocating plate, the outer wall of the L-shaped fixed shaft is rotatably connected to a lever, one end of the lever is fixedly connected to a knocking column, the side wall of the lever is fixedly connected to a return spring, and the end of the return spring away from the lever is fixedly connected to the L-shaped fixed plate.

[0015] Preferably, the side wall of the L-shaped fixed plate is fixedly connected to the outer wall of the reciprocating plate, the outer surface of the cross-rotating plate is fixedly connected to an L-shaped push rod, and the outer wall of the L-shaped push rod is arranged in contact with the side wall of the lever.

[0016] Preferably, the side wall of the fixed support frame is provided with a descaling mechanism, and the descaling mechanism includes a water pump fixedly connected to the side wall of the fixed support frame, the water suction end of the water pump is fixedly connected to a water suction pipe, the side wall of the fixed support frame is fixedly connected to a water tank, the drainage end of the water pump is fixedly connected to a drainage pipe, one end of the drainage pipe is connected to the interior of the connecting cylinder, and the outer wall of the drainage pipe is provided with a one-way valve.

[0017] A plate heat exchanger of the present invention:

[0018] 1. In the plate heat exchanger, the servo motor drives the inclined rotating part to move. The inclined rotating part, through its special inclined surface design, pushes the reciprocating pull plate to perform irregular reciprocating motion during the rotation process. The reciprocating pull plate drives the first ball, the connecting rod and the second ball to move. The second ball drives the heat exchanger body to reciprocate through the mounting block. The heat exchanger body slides left and right in the mounting groove plate through the convex slider to ensure the smooth movement of the heat exchanger body. The left and right reciprocating motion of the heat exchanger body makes the descaling agent evenly distributed inside the heat exchanger body, ensuring that every corner can contact the descaling agent, improving the descaling effect, and the fluid flow covers the entire surface of the heat exchanger plate. At the same time, the left and right swinging of the heat exchanger body causes frequent collisions between the scale and the descaling agent, helping the scale to fall off the surface of the heat exchanger plate. This combination of mechanical vibration and chemical reaction can effectively remove stubborn scale and restore the heat transfer performance of the heat exchanger body.

[0019] 2. In the plate heat exchanger, the oblique rotating part drives the driving rotating rod to rotate, the driving rotating rod drives sprocket one to rotate, sprocket one drives sprocket two and the rotating rod to rotate through the chain, the rotating rod drives the reciprocating threaded rotating rod to rotate through the belt, the reciprocating threaded rotating rod drives the reciprocating plate to move back and forth in the heat exchanger body channel, and the reciprocating motion of the reciprocating plate drives the cleaning brush to physically scrape off the scale in the heat exchanger channel, helping the scale to fall off the channel wall.

[0020] 3. In the plate heat exchanger, the rotating rod drives the limit sliding block and the cross-turn plate to rotate through the sliding groove, and the cross-turn plate drives the cleaning shaft to move with the rotating rod as the axis. Because the gear is engaged with the fixed annular gear plate, the cleaning shaft will rotate while rotating with the cross-turn plate. This self-rotation movement enables the cleaning brush on the cleaning shaft to clean the heat exchanger channel in all directions, ensuring that every corner can be effectively cleaned, helping scale to fall off from the channel wall, and the fallen scale is discharged from the outside of the heat exchanger with the flow of fluid.

[0021] 4. The plate heat exchanger drives the L-shaped push rod to move when the cross plate rotates. The L-shaped push rod pushes one end of the lever to move, so that the knocking column is away from the heat exchanger body channel wall. When the L-shaped push rod is no longer in contact with the lever, the reset spring pulls the lever to reset, so that the lever drives the knocking column to collide with the heat exchanger body channel wall, helping the scale to fall off the channel wall. This periodic collision can significantly improve the efficiency of scale shedding, especially for stubborn scale, which can play a good role in loosening.

[0022] 5. For the plate heat exchanger, when the heat exchanger body moves back and forth left and right, the heat exchanger body drives the shaft rod and the driving gear to move through the hinge seat. Because the driving gear is engaged with the tooth plate, the driving gear and the shaft rod can rotate during movement. The shaft rod drives the turntable and the eccentric rod to move. The eccentric rod drives the collision groove plate to reciprocate on the limit plate. The limit plate collides with the heat exchange plate, which can help scale fall off the surface of the heat exchange plate. The limit plate not only plays a collision role, but also can position the heat exchange plate to prevent the heat exchange plate from being misplaced during the reciprocating movement, thereby ensuring the normal operation of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

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

[0025] Figure 2 It is a schematic diagram of the structure of the heat exchanger body of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure of the convex slider of the present invention;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0028] Figure 5 It is a schematic diagram of the driving rotating rod structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the driving mechanism structure of the present invention;

[0030] Figure 7 For the present invention Figure 6 A magnified view of the structure at B in the middle;

[0031] Figure 8 It is a schematic diagram of the structure of the rotating rod of the present invention;

[0032] Fig. 9 It is a schematic diagram of the cleaning mechanism structure of the present invention;

[0033] Fig.10 For the present invention Figure 8 A magnified view of the structure at C in the middle;

[0034] Fig.11 It is a schematic diagram of the structure of the descaling mechanism of the present invention;

[0035] Fig.12 It is a schematic diagram of the structure of the fixing frame of the present invention;

[0036] Fig.13 For the present invention Fig.12 A magnified view of the structure at D in the middle;

[0037] Fig.14 It is a schematic diagram of the collision mechanism structure of the present invention.

[0038] Explanation of the marks in the figure: 101, mounting groove plate; 102, fixed support frame; 103, convex slider; 104, heat exchanger body; 2, reciprocating mechanism; 201, servo motor; 202, oblique rotating member; 203, reciprocating pull plate; 204, rolling ball one; 205, connecting rod; 206, rolling ball two; 207, mounting block; 31, connecting cylinder; 3, driving mechanism; 301, mounting frame; 302, sprocket one; 303, chain; 304, driving rotating rod; 305, limiting sliding groove; 306, sprocket two; 307, rotating rod; 308, belt; 309, reciprocating threaded rotating rod; 310, reciprocating moving plate; 4, cleaning mechanism; 401, connecting slide cylinder; 402, annular convex sliding plate; 403, ten 404, cleaning shaft; 405, gear; 406, fixed annular tooth plate; 407, cleaning brush; 41, sliding groove; 42, limiting sliding block; 5, knocking mechanism; 501, L-shaped fixed shaft; 502, lever; 503, knocking column; 504, reset spring; 505, L-shaped fixed plate; 506, L-shaped push rod; 6, descaling mechanism; 601, water pump; 602, suction pipe; 603, water tank; 604, drain pipe; 605, one-way valve; 7, collision mechanism; 701, fixed frame; 702, tooth plate; 703, hinged seat; 704, axis rod; 705, driving gear; 706, turntable; 707, eccentric rod; 708, collision groove plate; 709, limiting plate. DETAILED DESCRIPTION

[0039] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] like Figures 1 to 7 As shown, a plate heat exchanger of the present invention comprises a mounting slot plate 101, a fixed support frame 102 is fixedly connected to the top of the mounting slot plate 101, a convex slider 103 is slidably connected inside the mounting slot plate 101, and a heat exchanger body 104 is fixedly connected to the top of the convex slider 103, and further comprises:

[0041] The reciprocating mechanism 2 includes a servo motor 201 fixedly connected to the right side of the fixed support frame 102. The output end of the servo motor 201 is fixedly connected to an oblique rotating member 202. The outer wall of the oblique rotating member 202 is rotatably connected to a reciprocating pull plate 203. This arrangement is to enable the servo motor 201 to drive the oblique rotating member 202 to move. The oblique rotating member 202, through its special inclined surface design, pushes the reciprocating pull plate 203 to perform irregular reciprocating motion during the rotation process. The reciprocating pull plate 203 is internally connected to a rolling Rolling ball 204, the outer wall of rolling ball 204 is fixedly connected with connecting rod 205, the end of connecting rod 205 away from rolling ball 204 is rotatably connected with rolling ball 206, the outer wall of rolling ball 206 is rollingly connected with mounting block 207, the bottom of mounting block 207 is fixedly connected with the top of heat exchanger body 104, this arrangement is for the reciprocating pull plate 203 to drive rolling ball 1 204, connecting rod 205 and rolling ball 206 to move, and rolling ball 206 drives the heat exchanger body 104 to reciprocate through mounting block 207.

[0042] A driving mechanism 3 is provided on the right side of the heat exchanger body 104. The driving mechanism 3 includes a mounting frame 301 fixedly connected to the right side of the heat exchanger body 104. A sprocket wheel 302 is rotatably connected to the through hole of the mounting frame 301. A chain 303 is sleeved on the outer wall of the sprocket wheel 302. A driving rotating rod 304 is transmission-connected to the inner wall of the chain 303. The side of the oblique rotating member 202 away from the servo motor 201 is fixedly connected to the driving rotating rod 304. A limiting sliding groove 305 is provided on the outer wall of the driving rotating rod 304. The limiting sliding groove 305 is engaged with the sprocket wheel 302. A connecting cylinder 31 is fixedly connected to the right side of the heat exchanger body 104. A sprocket wheel 2 306 is transmission-connected to the inner wall of the chain 303. A rotating rod 307 is fixedly connected to the central axis of the sprocket wheel 2 306. This arrangement is for the oblique rotating member 202 to drive the driving rotating rod 304 to move. The drive rod 304 drives the sprocket 1 302 to rotate, and the sprocket 1 302 drives the sprocket 2 306 and the rotating rod 307 to rotate through the chain 303. The left end of the rotating rod 307 passes through the outer wall of the connecting tube 31 and extends to the inside. The outer wall of the rotating rod 307 is sleeved with a belt 308, and the inner wall of the belt 308 is transmission-connected with a reciprocating threaded rotating rod 309. The left end of the reciprocating threaded rotating rod 309 passes through the outer wall of the connecting tube 31 and extends to the inside. The outer wall of the reciprocating threaded rotating rod 309 is threadedly connected with a reciprocating plate 310, and the inner wall of the reciprocating plate 310 is slidably connected with the outer wall of the rotating rod 307. This arrangement is for the rotating rod 307 to drive the reciprocating threaded rotating rod 309 to rotate through the belt 308, and the reciprocating threaded rotating rod 309 drives the reciprocating plate 310 to reciprocate in the channel of the heat exchanger body 104.

[0043] like Figures 8 to 11As shown, a cleaning mechanism 4 is provided on the left side of the reciprocating plate 310, and the cleaning mechanism 4 includes a connecting slide 401 fixedly connected to the left side of the reciprocating plate 310, and the connecting slide 401 is internally slidably connected with an annular convex slide plate 402, and the outer surface of the annular convex slide plate 402 is fixedly connected with a cross rotating plate 403, and the inner wall of the cross rotating plate 403 is fixedly connected with a limiting sliding block 42, and the outer wall of the rotating rod 307 is provided with a sliding groove 41, and the inner wall of the sliding groove 41 is slidably connected with the side wall of the limiting sliding block 42. This arrangement is for the rotating rod 307 to drive the limiting sliding block 42 and the cross rotating plate 403 to rotate through the sliding groove 41.

[0044] A cleaning shaft 404 is rotatably connected to the through hole of the cross-turn plate 403, and a gear 405 is fixedly connected to the outer wall of the cleaning shaft 404. The side wall of the gear 405 is meshingly connected to a fixed annular gear plate 406, and the right side of the fixed annular gear plate 406 is fixedly connected to the left side of the reciprocating plate 310. This arrangement is for the cross-turn plate 403 to drive the cleaning shaft 404 to move around the rotating rod 307 as the axis. Because the gear 405 is meshing with the fixed annular gear plate 406, the cleaning shaft 404 will rotate while rotating with the cross-turn plate 403, and a cleaning brush 407 is fixedly connected to the outer wall of the cleaning shaft 404. This arrangement is for the cleaning brush 407 to clean the channel.

[0045] The outer wall of the reciprocating plate 310 is provided with a knocking mechanism 5, which includes an L-shaped fixed shaft 501 fixedly connected to the outer wall of the reciprocating plate 310, the outer wall of the L-shaped fixed shaft 501 is rotatably connected to a lever 502, one end of the lever 502 is fixedly connected to a knocking column 503, the side wall of the lever 502 is fixedly connected to a return spring 504, the end of the return spring 504 away from the lever 502 is fixedly connected to an L-shaped fixed plate 505, the side wall of the L-shaped fixed plate 505 is fixedly connected to the outer wall of the reciprocating plate 310, and the cross plate 403 is fixedly connected to the outer wall of the reciprocating plate 310. An L-shaped push rod 506 is fixedly connected to the outer surface, and the outer wall of the L-shaped push rod 506 is arranged in contact with the side wall of the lever 502. Such an arrangement is that when the cross-turn plate 403 rotates, the L-shaped push rod 506 is driven to move, and the L-shaped push rod 506 pushes one end of the lever 502 to move, so that the knocking column 503 is away from the channel wall of the heat exchanger body 104. When the L-shaped push rod 506 is no longer in contact with the lever 502, the reset spring 504 pulls the lever 502 to reset, so that the lever 502 can drive the knocking column 503 to collide with the channel wall of the heat exchanger body 104.

[0046] A descaling mechanism 6 is provided on the side wall of the fixed support frame 102, and the descaling mechanism 6 includes a water pump 601 fixedly connected to the side wall of the fixed support frame 102, a water suction end of the water pump 601 is fixedly connected to a water suction pipe 602, a water tank 603 is fixedly connected to the side wall of the fixed support frame 102, and a drainage end of the water pump 601 is fixedly connected to a drainage pipe 604, one end of the drainage pipe 604 is connected to the interior of the connecting cylinder 31, and this is arranged to add descaling agent to the water tank 603. The water pump 601 sucks the descaling agent in the water tank 603 into the drainage pipe 604 through the water suction pipe 602, and discharges it into the connecting cylinder 31 and the heat exchanger body 104, and a one-way valve 605 is provided on the outer wall of the drainage pipe 604, and this is arranged to prevent the descaling liquid that has entered the heat exchanger body 104 from flowing back.

[0047] like Figure 12 to Figure 14 As shown, the accumulation of scale may completely block the flow channel of the heat exchanger, resulting in the inability of the fluid to pass normally, seriously affecting the normal operation of the equipment. When cleaning the scale that is difficult to remove from the inside, external force is required to vibrate the heat exchanger; plate heat exchangers are usually sealed with rubber gaskets or other sealing materials. The equipment may be misaligned between the heat exchange plates after being vibrated. The side walls of the mounting groove plate 101 are symmetrically provided with a collision mechanism 7, and the collision mechanism 7 includes a fixing frame 701 fixedly connected to the side wall of the mounting groove plate 101, and the side wall of the fixing frame 701 is fixedly connected to a tooth plate 702. The side wall of the heat exchanger body 104 is fixedly connected to a hinge seat 703, and the through hole of the hinge seat 703 is rotatably connected to an axis rod 704. The outer wall of the axis rod 704 is fixedly connected to a driving gear 705, and the side wall of the driving gear 705 is meshed with the side wall of the tooth plate 702. The top of the axis rod 704 is fixedly connected to a turntable 706, and the top of the turntable 706 is fixedly connected to an eccentric rod 7 07, the outer wall of the eccentric rod 707 is slidably connected with a collision groove plate 708, and the side wall of the collision groove plate 708 is slidably connected with a limit plate 709, and the side wall of the limit plate 709 is fixedly connected to the outer surface of the heat exchanger body 104. In this way, when the heat exchanger body 104 moves back and forth, the heat exchanger body 104 drives the shaft rod 704 and the driving gear 705 to move through the hinge seat 703. Because the driving gear 705 is meshed with the tooth plate 702, the driving gear 705 can be driven to move. 05 and the axial rod 704 rotate during movement, the axial rod 704 drives the turntable 706 and the eccentric rod 707 to move, and the eccentric rod 707 drives the collision groove plate 708 to reciprocate on the limit plate 709. The limit plate 709 collides with the heat exchange plate to help the scale fall off the surface of the heat exchange plate. The limit plate 709 not only plays a collision role, but also can position the heat exchange plate to prevent the heat exchange plate from being misplaced during the reciprocating movement, thereby ensuring the normal operation of the heat exchanger.

[0048] A working principle of a plate heat exchanger: Before starting to clean, first, the water outlet and drain port of the heat exchanger body 104 need to be sealed to ensure that the descaling agent can fully cover all surfaces inside the heat exchanger, and then the descaling agent is added to the water tank 603. The water pump 601 sucks the descaling agent in the water tank 603 into the drain pipe 604 through the suction pipe 602, and discharges it into the connecting tube 31 and the heat exchanger body 104. The servo motor 201 drives the inclined rotating part 202 to move. The inclined rotating part 202, through its special inclined surface design, pushes the reciprocating pull plate 203 to perform irregular reciprocating motion during the rotation process, and the reciprocating pull plate 203 drives the rolling ball 1 204, the connecting rod 205 and the rolling ball 2 206 to move The ball 206 drives the heat exchanger body 104 to reciprocate through the mounting block 207. The heat exchanger body 104 slides left and right in the mounting groove plate 101 through the convex slider 103 to ensure the smooth movement of the heat exchanger body. The left and right reciprocating motion of the heat exchanger body 104 makes the descaling agent evenly distributed inside the heat exchanger body 104, ensuring that every corner can contact the descaling agent, improving the descaling effect, and the fluid flow covers the entire surface of the heat exchange plate. At the same time, the left and right swing of the heat exchanger body 104 causes the scale to collide frequently with the descaling agent, helping the scale to fall off the surface of the heat exchange plate. This combination of mechanical vibration and chemical reaction can effectively remove stubborn scale and restore the heat transfer performance of the heat exchanger body 104.

[0049] The oblique rotating member 202 drives the driving rotating rod 304 to rotate, and the driving rotating rod 304 drives the sprocket wheel 1 302 to rotate. The sprocket wheel 1 302 drives the sprocket wheel 2 306 and the rotating rod 307 to rotate through the chain 303. The rotating rod 307 drives the reciprocating threaded rotating rod 309 to rotate through the belt 308. The reciprocating threaded rotating rod 309 drives the reciprocating plate 310 to reciprocate in the channel of the heat exchanger body 104. The reciprocating motion of the reciprocating plate 310 drives the cleaning brush 407 to physically scrape off the scale in the heat exchanger channel, helping the scale to fall off from the channel wall. The rotating rod 30 The sliding groove 41 drives the limit sliding block 42 and the cross rotating plate 403 to rotate, and the cross rotating plate 403 drives the cleaning shaft 404 to move with the rotating rod 307 as the axis. Because the gear 405 is meshed with the fixed annular gear plate 406, the cleaning shaft 404 rotates while rotating with the cross rotating plate 403. This self-rotation movement enables the cleaning brush 407 on the cleaning shaft 404 to clean the heat exchanger channel in an all-round manner, ensuring that every corner can be effectively cleaned, helping the scale to fall off from the channel wall, and the fallen scale is discharged from the outside of the heat exchanger with the flow of the fluid;

[0050] When the cross plate 403 rotates, the L-shaped push rod 506 is driven to move, and the L-shaped push rod 506 pushes one end of the lever 502 to move, so that the knocking column 503 is away from the channel wall of the heat exchanger body 104. When the L-shaped push rod 506 is no longer in contact with the lever 502, the reset spring 504 pulls the lever 502 to reset, so that the lever 502 drives the knocking column 503 to collide with the channel wall of the heat exchanger body 104, helping the scale to fall off the channel wall. This periodic collision can significantly improve the efficiency of scale shedding, especially for stubborn scale, and can play a good role in loosening;

[0051] When the heat exchanger body 104 moves back and forth left and right, the heat exchanger body 104 drives the shaft rod 704 and the driving gear 705 to move through the hinge seat 703. Since the driving gear 705 is meshed with the tooth plate 702, the driving gear 705 and the shaft rod 704 can rotate during movement. The shaft rod 704 drives the turntable 706 and the eccentric rod 707 to move. The eccentric rod 707 drives the collision groove plate 708 to reciprocate on the limit plate 709. The limit plate 709 collides with the heat exchange plate to help scale fall off the surface of the heat exchange plate. The limit plate 709 not only plays a collision role, but also can position the heat exchange plate to prevent the heat exchange plate from being misplaced during the reciprocating movement, thereby ensuring the normal operation of the heat exchanger.

[0052] The following will be combined with the drawings in the embodiments 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.

Claims

1. A plate heat exchanger, comprising a mounting groove plate (101), the top of the mounting groove plate (101) being fixedly connected to a fixed support frame (102), the interior of the mounting groove plate (101) being slidably connected to a convex slider (103), the top of the convex slider (103) being fixedly connected to a heat exchanger body (104), characterized in that: Also includes: A reciprocating mechanism (2), the reciprocating mechanism (2) comprising a servo motor (201) fixedly connected to the right side of a fixed support frame (102), the output end of the servo motor (201) being fixedly connected to an oblique rotating member (202), the outer wall of the oblique rotating member (202) being rotatably connected to a reciprocating pull plate (203), the interior of the reciprocating pull plate (203) being rollingly connected to a ball one (204), the outer wall of the ball one (204) being fixedly connected to a connecting rod (205), the end of the connecting rod (205) away from the ball one (204) being rotatably connected to a ball two (206), the outer wall of the ball two (206) being rollingly connected to a mounting block (207), the bottom of the mounting block (207) being fixedly connected to the top of the heat exchanger body (104).

2. A plate heat exchanger according to claim 1, characterized in that: A driving mechanism (3) is arranged on the right side of the heat exchanger body (104), and the driving mechanism (3) comprises a mounting frame (301) fixedly connected to the right side of the heat exchanger body (104); a sprocket wheel (302) is rotatably connected to the through hole of the mounting frame (301); a chain (303) is sleeved on the outer wall of the sprocket wheel (302); a driving rotating rod (304) is transmission-connected to the inner wall of the chain (303); a driving rotating rod (304) is fixedly connected to the side of the oblique rotating member (202) away from the servo motor (201); a limiting sliding groove (305) is provided on the outer wall of the driving rotating rod (304); and the limiting sliding groove (305) is clamped with the sprocket wheel (302).

3. A plate heat exchanger according to claim 2, characterized in that: The right side of the heat exchanger body (104) is fixedly connected to a connecting tube (31), the inner wall of the chain (303) is drivingly connected to a second sprocket (306), the center axis of the second sprocket (306) is fixedly connected to a rotating rod (307), the left end of the rotating rod (307) passes through the outer wall of the connecting tube (31) and extends to the inside, and the outer wall of the rotating rod (307) is sleeved with a belt (308).

4. A plate heat exchanger according to claim 3, characterized in that: The inner wall of the belt (308) is transmission-connected with a reciprocating threaded rotating rod (309), the left end of which passes through the outer wall of the connecting tube (31) and extends to the inner side, the outer wall of the reciprocating threaded rotating rod (309) is threadedly connected with a reciprocating plate (310), and the inner wall of the reciprocating plate (310) is slidably connected with the outer wall of the rotating rod (307).

5. A plate heat exchanger according to claim 4, characterized in that: A cleaning mechanism (4) is provided on the left side of the reciprocating plate (310), and the cleaning mechanism (4) comprises a connecting slide (401) fixedly connected to the left side of the reciprocating plate (310), an annular convex slide plate (402) being slidably connected inside the connecting slide (401), and a cross-turn plate (403) being fixedly connected to the outer surface of the annular convex slide plate (402).

6. A plate heat exchanger according to claim 5, characterized in that: The inner wall of the cross rotating plate (403) is fixedly connected to a limit sliding block (42), the outer wall of the rotating rod (307) is provided with a sliding groove (41), and the inner wall of the sliding groove (41) is slidably connected to the side wall of the limit sliding block (42).

7. A plate heat exchanger according to claim 6, characterized in that: A cleaning shaft (404) is rotatably connected to the through hole of the cross rotating plate (403); a gear (405) is fixedly connected to the outer wall of the cleaning shaft (404); a fixed annular gear plate (406) is meshedly connected to the side wall of the gear (405); the right side of the fixed annular gear plate (406) is fixedly connected to the left side of the reciprocating plate (310); and a cleaning brush (407) is fixedly connected to the outer wall of the cleaning shaft (404).

8. A plate heat exchanger according to claim 7, characterized in that: The outer wall of the reciprocating plate (310) is provided with a knocking mechanism (5), and the knocking mechanism (5) comprises an L-shaped fixed shaft (501) fixedly connected to the outer wall of the reciprocating plate (310), the outer wall of the L-shaped fixed shaft (501) is rotatably connected to a lever (502), one end of the lever (502) is fixedly connected to a knocking column (503), the side wall of the lever (502) is fixedly connected to a return spring (504), and one end of the return spring (504) away from the lever (502) is fixedly connected to an L-shaped fixed plate (505).

9. A plate heat exchanger according to claim 8, characterized in that: The side wall of the L-shaped fixed plate (505) is fixedly connected to the outer wall of the reciprocating plate (310), and the outer surface of the cross-rotating plate (403) is fixedly connected to an L-shaped push rod (506), and the outer wall of the L-shaped push rod (506) is arranged in contact with the side wall of the lever (502).

10. The plate heat exchanger according to claim 1, characterized in that: The side wall of the fixed support frame (102) is provided with a descaling mechanism (6), and the descaling mechanism (6) comprises a water pump (601) fixedly connected to the side wall of the fixed support frame (102); the water suction end of the water pump (601) is fixedly connected to a water suction pipe (602); the side wall of the fixed support frame (102) is fixedly connected to a water tank (603); the drainage end of the water pump (601) is fixedly connected to a drainage pipe (604); one end of the drainage pipe (604) is connected to the interior of the connecting cylinder (31); and a one-way valve (605) is provided on the outer wall of the drainage pipe (604).

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