A plate heat exchanger

Abstract

The present invention discloses a plate heat exchanger, which belongs to the field of heat exchange, comprising a plate body, a plurality of guide pillars fixedly connected to one side of the plate body, a plate body two movably sleeved on the outside of the guide pillars, and a heat exchange plate located between the plate body one and the plate body two, wherein one side of the plate body one is connected with a vertical installation component, and the vertical installation component comprises a support column fixedly connected to one side of the plate body one, a rotating seat rotatably sleeved on the outside of the support column, two lower side plates symmetrically fixed to the upper end of the rotating seat, two upper side plates respectively fixed to the upper ends of the two lower side plates, and a guide portion fixed to one side of the two upper side plates and the two lower side plates; the heat exchange plate can be vertically inserted between the two upper side plates and the two lower side plates, thereby avoiding the process of bending the heat exchange plate during installation, significantly reducing the mechanical stress on the heat exchange plate, reducing the damage such as deformation, scratches and creases that may be caused during the installation process, and improving the structural integrity and service life of the heat exchange plate.

Description

Technical Field

[0001] The present invention relates to the field of heat exchange, and more particularly to a plate heat exchanger. Background Art

[0002] Plate heat exchanger is a common and efficient heat exchange equipment, widely used in industries, HVAC (heating, ventilation and air conditioning), food processing and other fields. It consists of a series of thin metal plates, with an independent flow channel formed between every two plates. The hot and cold media flow in opposite directions or in opposite directions in adjacent flow channels, transferring heat through the plates.

[0003] The plate heat exchanger structure in the prior art adopts an upper beam + lower beam structure, and the heat exchanger fins are installed between the upper beam + lower beam. For example, a high-efficiency detachable wide-channel plate heat exchanger disclosed in the Chinese invention patent with announcement number CN101922869B adopts this structure. However, since the spacing between the upper beam and the lower beam is fixed, the heat exchanger fin needs to be bent when installing it between the upper beam and the lower beam. The heat exchanger fin is bent and placed between the upper beam and the lower beam, and then the heat exchanger fin is unfolded so that the upper and lower slots of the heat exchanger fin are clamped on the upper beam and the lower beam. Since the material of the heat exchanger fin is relatively thin, the heat exchanger fin will be subjected to stress during the bending and unfolding process, and stress concentration is likely to occur on the surface of the heat exchanger fin, especially after repeated disassembly or long-term use, which may cause material fatigue, resulting in deformation or damage of the heat exchanger fin. The mechanical stress during the bending process may also cause local cracks, further affecting the service life. Summary of the invention

[0004] In view of the problems existing in the prior art, an object of the present invention is to provide a plate heat exchanger.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A plate heat exchanger comprises a plate body 1, a plurality of guide pillars fixedly connected to one side of the plate body 1, a plate body 2 movably sleeved on the outside of the guide pillars, and a heat exchange sheet located between the plate body 1 and the plate body 2.

[0007] A vertical mounting assembly is connected to one side of the plate body, and the vertical mounting assembly includes a support column fixed to one side of the plate body, a rotating seat rotatably sleeved on the outside of the support column, two lower side plates symmetrically fixed to the upper end of the rotating seat, two upper side plates respectively fixed to the upper ends of the two lower side plates, a guide portion fixed to one side of the two upper side plates and the two lower side plates, and a guide groove provided on one side of the plate body to accommodate the guide portion;

[0008] The second plate body is provided with a second limiting groove for facilitating the two upper side plates to pass through, and a first limiting groove for facilitating the two lower side plates and the rotating seat to pass through.

[0009] Furthermore, a pressing and leveling assembly is connected between the two upper side plates and the two lower side plates, and the pressing and leveling assembly includes a movable groove 1 opened inside the two upper side plates and the two lower side plates, a guide rod fixed to the inner wall of the movable groove 1, a sliding seat slidably connected in the movable groove 1 and movably sleeved on the outside of the guide rod, a spring 1 sleeved on the outside of the guide rod, and pressure plates respectively connected to adjacent sliding seats on both sides.

[0010] Furthermore, two ends of the spring 1 are respectively connected to one side of the slide seat and the inner wall of the movable groove 1.

[0011] Furthermore, an insert block is movably inserted inside the slide seat, slots matching the insert block are provided on both sides of the pressure plate, and one end of the insert block passes through the slide seat and is inserted in the slot.

[0012] Furthermore, one side of the pressure plate is integrally formed with multiple flanges 1, and the interiors of the multiple flanges 1 are all connected to elastic pressure-applying parts, and the elastic pressure-applying parts include a column 2 fixedly connected to the interior of flange 1, a column 1 movably connected to the interior of flange 1 and movably sleeved on the exterior of column 2, a spring 2 sleeved on the exterior of column 2, and one end of column 1 passes through flange 1 and extends outward, and the extended end of column 1 is rotatably connected to a ball 1.

[0013] Furthermore, a cavity is provided inside the pressure plate, and a debris cleaning unit is connected inside the cavity, and the debris cleaning unit includes two sets of tooth keys symmetrically provided on the inner wall of the cavity, a seat body slidably connected to the inner wall of the cavity, two movable cavities symmetrically provided inside the seat body, two rotating rods rotatably connected to the inner walls of the two movable cavities respectively, a brush roller sleeved on the outside of the rotating rod, and two gears rotatably connected to both sides of the seat body and respectively fixed to the two rotating rods, a motor is fixed to the upper end of the pressure plate, a screw is threaded inside the seat body, one end of the screw is fixed to the motor output shaft and the other end of the screw is rotatably connected to the movable cavity, and the gear is meshed with the tooth key.

[0014] Furthermore, a sliding groove is provided on the outer surface of the rotating rod, and a sliding bar which is slidably connected in the sliding groove is integrally formed on the inner wall of the brush roller.

[0015] Furthermore, two sets of flanges 2 are symmetrically provided on the inner wall of the movable cavity, a reset part is sleeved on one end of the two rotating rods, and a movable part is internally connected to the other end of the two rotating rods, and the movable part includes an movable groove 2 opened in the rotating rod and the gear and connected to the slide groove, a column 3 movably connected in the movable groove 2, a spring 3 located in the movable groove 2 and whose two ends are respectively connected to the column 3 and the inner wall of the movable groove 2, and a disk body movably sleeved on the outside of the rotating rod and passing through the movable groove 2 and fixedly connected to the column 3, one end of the column 3 passes through the movable groove 2 and extends outward, and the extended end of the column 3 is rotatably connected to a ball 2.

[0016] Furthermore, the reset part includes a sleeve body 1 fixedly connected to the outside of the rotating rod, a sleeve body 2 movably sleeved on the outside of the rotating rod, and a spring 4 connecting the sleeve body 1 and the sleeve body 2.

[0017] Furthermore, the plate body 1, the plate body 2 and the heat exchange plate are all provided with flow passages, and a plurality of screws are passed through the plate body 1 and the plate body 2, and one end of the screw passes through one side of the plate body 2 and is screwed into the locking screw sleeve.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This solution is provided with a vertical installation assembly. The rotating seat can rotate outside the support column, thereby driving the upper side plate, the lower side plate and the guide part to rotate between the two plate bodies. The guide groove can guide and limit the guide part, so that the rotating seat, the upper side plate and the lower side plate are tilted, and the heat exchange plate can be vertically inserted between the two upper side plates and the two lower side plates, avoiding the bending installation process of the heat exchange plate, significantly reducing the mechanical stress on the heat exchange plate, reducing the deformation, scratches and creases that may be caused during the installation process, and improving the structural integrity and service life of the heat exchange plate. The rotating seat design is not only easy to install, but also simplifies the removal process of the heat exchange plate. When maintenance is required, the heat exchange plate can be vertically removed by rotating the rotating seat to restore it to the tilted angle, avoiding fatigue damage caused by repeated bending in the traditional method. This can reduce the difficulty of maintenance and extend the service life of the heat exchange plate.

[0020] (2) This solution is provided with a pressing and leveling component, which can apply force to the slide seat through a spring, push the slide seat and the pressure plate to move toward the heat sink, apply force to the heat sink through the pressure plate, and apply lateral pressure to the heat sink through the pressure plate, so as to provide uniform support in the longitudinal height of the heat sink. This pressure can effectively suppress the lateral movement and deflection of the upper end of the heat sink, avoid bending or swinging of the heat sink at the upper free opening between the two upper side plates due to lack of constraints, ensure that the entire heat sink remains straight, and multiple heat sinks can form an overall stable arrangement structure after being pressed by the side, avoiding misalignment or tilting between the heat sinks.

[0021] (3) The present solution is provided with a cleaning unit, which drives the seat body to move up and down inside the pressure plate through a motor, so that the gears on both sides of the seat body can contact the tooth keys, thereby driving the rotating rod and the brush roller inside the seat body to rotate while the seat body moves up and down. The bristles of the brush roller rotate and contact one side of the heat exchange plate, which can clean the contact surface between the sealing gasket and the heat exchange plate, reducing poor sealing caused by dirt or corrosive substances. The cleaned surface helps the sealing ring to fit more evenly and tightly on the plate, thereby improving the sealing of the heat exchanger and preventing cross-contamination or leakage of cold and hot fluids. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the vertical installation assembly of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the compacting and leveling assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the slot, flange and elastic pressure portion of the present invention;

[0026] Figure 5 is a cross-sectional view of the elastic pressure applying portion of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the tooth key and flange of the present invention;

[0028] Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 8 It is a schematic diagram of the structure of the impurity cleaning unit of the present invention;

[0030] Fig. 9 It is a schematic diagram of the rotating rod and the sliding groove structure of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the movable part and the reset part of the present invention.

[0032] Description of the numbers in the figure:

[0033] 1. Plate body 1; 2. Guide column; 3. Plate body 2; 31. Limiting groove 1; 32. Limiting groove 2; 4. Screw; 5. Locking screw sleeve; 6. Heat exchange plate; 7. Flow channel; 8. Vertical installation assembly; 81. Support column; 82. Rotating seat; 83. Guide groove; 84. Lower side plate; 85. Upper side plate; 86. Guide part; 9. Pressing and leveling assembly; 91. Movable groove 1; 92. Guide rod; 93. Sliding seat; 94. Spring 1; 95. Insert; 96. Pressing plate; 97. Flange 1; 98. Elastic pressure part; 981. Column body 1; 982. Column Body 2; 983, spring 2; 984, ball 1; 99, slot; 10, cleaning unit; 101, motor; 102, seat; 103, gear key; 104, screw rod; 105, movable cavity; 106, rotating rod; 1061, slide groove; 107, gear; 108, brush roller; 109, flange 2; 11, movable part; 111, movable groove 2; 112, spring 3; 113, disk; 114, column 3; 115, ball 2; 12, reset part; 121, sleeve 1; 122, spring 4; 123, sleeve 2. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0035] See also Figures 1 to 10 A plate heat exchanger includes a plate body 1, a plurality of guide pillars 2 fixedly connected to one side of the plate body 1, a plate body 3 movably sleeved outside the guide pillars 2, and a heat exchange sheet 6 located between the plate body 1 and the plate body 3.

[0036] A vertical mounting assembly 8 is connected to one side of the plate body 1, and the vertical mounting assembly 8 includes a support column 81 fixed to one side of the plate body 1, a rotating seat 82 rotatably sleeved on the outside of the support column 81, two lower side plates 84 symmetrically fixed to the upper end of the rotating seat 82, two upper side plates 85 respectively fixed to the upper ends of the two lower side plates 84, a guide portion 86 fixed to one side of the two upper side plates 85 and the two lower side plates 84, and a guide groove 83 provided on one side of the plate body 1 to accommodate the guide portion 86;

[0037] The second plate body 3 is provided with a second limiting groove 32 for the two upper side plates 85 to pass through and a first limiting groove 31 for the two lower side plates 84 and the rotating seat 82 to pass through.

[0038] The plate body 1, the plate body 2, the plate body 3 and the heat exchange plate 6 are all provided with flow passage openings 7, and a plurality of screws 4 are passed through the plate body 1 and the plate body 2, and one end of the screw 4 passes through one side of the plate body 2, the plate body 3 and is screwed into the locking screw sleeve 5.

[0039] By adopting the above technical solution, when assembling the heat exchanger, the rotating seat 82 is rotated clockwise, and the rotating seat 82 rotates on the support column 81, and the guide part 86 can move in the guide groove 83. When the upper and lower guide parts 86 on the left side move to the other end of the guide groove 83, the guide part 86 cannot continue to rotate to one side. At this time, the rotating seat 82, the two upper side plates 85 and the two lower side plates 84 are all in a tilted state. At this time, the bottom of the heat exchange plate 6 is placed between the two upper side plates 85 and the two lower side plates 84 from the opening between the two upper side plates 85, and the bottom of the heat exchange plate 6 is in contact with the upper end of the rotating seat 82. The heat exchanger 6 is placed on the rotating seat 82 and located between the two plate bodies. The above-mentioned actions are repeated and multiple heat exchanger fins 6 are placed between the two upper side plates 85 and the two lower side plates 84 in turn to complete the parallel arrangement of multiple heat exchanger fins 6. Then, the rotating seat 82 is rotated counterclockwise to reset the rotating seat 82, and the locking screw sleeve 5 is rotated to move the locking screw sleeve 5 outside the screw rod 4. The movement of the locking screw sleeve 5 drives the plate body 2 3 to move toward the direction of the heat exchanger 6, so that the rotating seat 82 and the lower side plate 84 pass through the limiting groove 1 31, and the upper side plate 85 passes through the limiting groove 2 32. The plate body 2 3 applies pressure to the heat exchanger fins 6 to press the multiple heat exchanger fins 6 to complete the installation.

[0040] like Figure 3 and Figure 4 As shown, a pressing and leveling assembly 9 is also connected between the two upper side plates 85 and the two lower side plates 84, and the pressing and leveling assembly 9 includes a movable groove 91 opened inside the two upper side plates 85 and the two lower side plates 84, a guide rod 92 fixed to the inner wall of the movable groove 91, a slide seat 93 slidably connected in the movable groove 91 and movably sleeved on the outside of the guide rod 92, a spring 94 sleeved on the outside of the guide rod 92, and a pressure plate 96 connected to the adjacent slide seats 93 on both sides.

[0041] The two ends of the spring 1 94 are connected to one side of the slide seat 93 and the inner wall of the movable groove 1 91 respectively.

[0042] An insert block 95 is movably inserted inside the slide seat 93 , and slots 99 matching the insert block 95 are formed on both sides of the pressure plate 96 , and one end of the insert block 95 passes through the slide seat 93 and is inserted in the slot 99 .

[0043] By adopting the above technical solution, when a new heat exchanger fin 6 is placed between the two upper side plates 85 and the two lower side plates 84, the pressure plate 96 is manually moved to push the pressure plate 96 toward the direction of the plate body 2 3 to compress the spring 1 94. At this time, the newly added heat exchanger fin 6 can be located between the pressure plate 96 and the heat exchanger fin 6 already placed on the rotating seat 82. Then the pressure plate 96 is released, and the spring 1 94 pushes the slide seat 93 and the pressure plate 96 to move toward the newly inserted heat exchanger fin 6, so that the pressure plate 96 presses one side of the newly inserted heat exchanger fin 6, and a force is applied to the heat sink by the pressure plate 96. By applying lateral pressure to the heat sink by the pressure plate 96, a uniform support effect can be provided on the longitudinal height of the heat exchanger fin 6. This pressure can effectively suppress the lateral movement and deflection of the upper end of the heat sink, prevent the heat exchanger 6 from bending or swinging due to lack of constraint at the upper free opening between the two upper side plates 85, ensure that the entire heat exchanger 6 remains straight, and multiple heat exchanger fins 6 can form an overall stable arrangement structure after being pressed from the side, avoiding misalignment or tilting between the heat exchanger fins 6.

[0044] like Figure 4 and Figure 5 As shown, one side of the pressure plate 96 is integrally formed with a plurality of flanges 97, and the interiors of the plurality of flanges 97 are all connected with elastic pressure applying parts 98, and the elastic pressure applying parts 98 include a column 982 fixedly connected to the interior of the flange 97, a column 981 movably connected to the interior of the flange 97 and movably sleeved on the exterior of the column 982, and a spring 983 sleeved on the exterior of the column 982, and one end of the column 981 passes through the flange 97 and extends outward, and the extended end of the column 981 is rotatably connected with a ball 984.

[0045] By adopting the above technical solution, when the pressure plate 96 moves toward the heat exchange plate 6, the ball 1 984 can first contact with one side of the heat exchange plate 6. Since a flow channel is provided on one side of the heat exchange plate 6, there are unevenness on one side of the heat exchange plate 6. The ball 1 984 can make point contact with the unevenness of the heat exchange plate 6. The design of the spring 2 983 allows the column 1 981 to extend and retract in the flange 1 97, thereby adjusting the length of the column 1 981 extending from the flange 1 97. When the ball 1 984 hits the protruding part of the heat exchange plate 6, it can squeeze the spring 2 983 to achieve adaptive fitting and pressure.

[0046] like Figure 6-Figure 8As shown, a cavity is also provided inside the pressure plate 96, and a cleaning unit 10 is connected inside the cavity. The cleaning unit 10 includes two groups of tooth keys 103 symmetrically provided on the inner wall of the cavity, a seat body 102 slidably connected to the inner wall of the cavity, two movable cavities 105 symmetrically provided inside the seat body 102, two rotating rods 106 rotatably connected to the inner walls of the two movable cavities 105, respectively, a brush roller 108 sleeved on the outside of the rotating rod 106, and two gears 107 rotatably connected to both sides of the seat body 102 and respectively fixed to the two rotating rods 106. The upper end of the pressure plate 96 is fixedly connected to a motor 101, and a screw rod 104 is screwed inside the seat body 102, one end of the screw rod 104 is fixedly connected to the output shaft of the motor 101 and the other end of the screw rod 104 is rotatably connected to the movable cavity 105, and the gear 107 is meshed with the tooth key 103.

[0047] A sliding groove 1061 is formed on the outer surface of the rotating rod 106 , and a sliding bar slidably connected in the sliding groove 1061 is integrally formed on the inner wall of the brush roller 108 .

[0048] By adopting the above technical solution, after the pressure plate 96 moves toward the heat exchange plate 6 and the ball 984 can contact one side of the heat exchange plate 6, the motor 101 can drive the screw rod 104 to rotate, and the rotation of the screw rod 104 can drive the seat body 102 to move downward. When the seat body 102 moves downward, the gear 107 can contact the tooth key 103, so that the gear 107 rotates and drives the rotating rod 106 to rotate. The rotation of the rotating rod 106 can drive the brush roller 108 to rotate, so that the brush roller 108 can rotate while moving up and down, and the outer surface of the sealing gasket on one side of the heat exchange plate 6 is cleaned to reduce poor sealing caused by dirt or corrosive substances. The cleaned surface helps the sealing ring to fit more evenly and tightly on the heat exchange plate 6, thereby improving the sealing of the heat exchanger and preventing cross-contamination or leakage of cold and hot fluids.

[0049] like Fig. 9 and Fig.10 As shown, two groups of flanges 109 are symmetrically provided on the inner wall of the movable cavity 105, one end of the two rotating rods 106 is sleeved with a reset portion 12, and the other end of the two rotating rods 106 is internally connected with a movable portion 11, and the movable portion 11 includes an movable groove 111 11 opened inside the rotating rod 106 and the gear 107 and connected to the slide groove 1061, a column 114 movably connected in the movable groove 111, a spring 112 located in the movable groove 111 and with two ends respectively connected to the column 114 and the inner wall of the movable groove 111, a disk 113 movably sleeved on the outside of the rotating rod 106 and passing through the movable groove 111 and fixedly connected to the column 114, one end of the column 114 passes through the movable groove 111 and extends outward, and the extended end of the column 114 is rotatably connected with a ball 115.

[0050] The reset portion 12 includes a sleeve body 121 fixedly connected to the outside of the rotating rod 106, a sleeve body 123 movably sleeved on the outside of the rotating rod 106, and a spring 4 122 connecting the sleeve body 121 and the sleeve body 123.

[0051] By adopting the above technical solution, when the seat body 102 moves in the active cavity 105, the second ball 115 can contact the second flange 109, and the second flange 109 can push the second ball 115 and the third column 114 to move in the direction of the third spring 112, squeezing the third spring 112. When the third column 114 moves in the direction of the third spring 112, it can also drive the disc 113 to move in the direction of the second sleeve 123. The disc 113 moves to push the brush roller 108 outside the rotating rod 106. When the brush roller 108 moves, one end contacts the second sleeve 123 and squeezes the fourth spring. 122. When flange 2 109 is separated from ball 2 115, spring 4 122 pushes brush roller 108 to reset, and spring 3 112 pushes column 3 114 to reset, so that brush roller 108 can also move laterally while rotating, so that the bristles of brush roller 108 can cover a wider area, and can evenly apply cleaning force to the surface of heat exchange plate 6 to prevent certain areas from being missed due to the limitation of static position or motion trajectory. The geometric shape between the surface of heat exchange plate 6 and the sealing gasket may not be completely regular, especially in the flow channel and corners, where there may be areas that are difficult to clean. The brush roller 108 that moves laterally can flexibly adjust its position as the internal structure of the equipment changes, and can better adapt to these complex areas, ensuring cleaning without dead angles, and avoiding system performance degradation or pollution accumulation caused by uncleaned dead angles. Lateral translation not only helps to enhance the cleaning effect, but also helps to disperse the wear of the brush in contact with the surface.

[0052] Instructions for use: When assembling the heat exchanger, rotate the rotating seat 82 clockwise, and the rotating seat 82 rotates on the support column 81, and the guide part 86 can move in the guide groove 83. When the upper and lower guide parts 86 on the left side move to the other end of the guide groove 83, the guide part 86 cannot continue to rotate to one side. At this time, the rotating seat 82, the two upper side plates 85 and the two lower side plates 84 are all in a tilted state. At this time, put the bottom of the heat exchange plate 6 from the opening between the two upper side plates 85 between the two upper side plates 85 and the two lower side plates 84. When a new heat exchange plate 6 is put between the two upper side plates 85 and the two lower side plates 84 , use your hand to move the pressing plate 96, push the pressing plate 96 to move in the direction of the plate body 2 3, so that the spring 1 94 is compressed. At this time, the newly added heat exchanger 6 can be located between the pressing plate 96 and the heat exchanger 6 already placed on the rotating seat 82, and then release the pressing plate 96. The spring 1 94 pushes the slide seat 93 and the pressing plate 96 to move toward the newly inserted heat exchanger 6. The ball 1 984 can first contact one side of the heat exchanger 6. Since a flow channel is provided on one side of the heat exchanger 6, there are uneven areas on one side of the heat exchanger 6. The ball 1 984 can make point contact with the uneven area of ​​the heat exchanger 6. The design of the spring 2 983 allows the column 1 981 to be located on the flange 1 97 is retracted and retracted, thereby adjusting the length of the column 1 981 extending from the flange 1 97. After the pressure plate 96 moves toward the heat exchange plate 6 and the ball 1 984 can contact one side of the heat exchange plate 6, the motor 101 can work to drive the screw rod 104 to rotate, and the rotation of the screw rod 104 can drive the seat body 102 to move downward. When the seat body 102 moves downward, the gear 107 can contact the tooth key 103, so that the gear 107 rotates and drives the rotating rod 106 to rotate. The brush roller 108 can also rotate while moving up and down, and the ball 2 115 can contact the flange 2 109, and the flange 2 109 can push the ball 2 115 and the column 3 114 moves in the direction of spring three 112, squeezing spring three 112. When column three 114 moves in the direction of spring three 112, it can also drive disk body 113 to move in the direction of sleeve body two 123. Disk body 113 moves and pushes brush roller 108 outside rotating rod 106. When brush roller 108 moves, one end contacts with sleeve body two 123 and squeezes spring four 122. When flange two 109 and ball two 115 are separated, spring four 122 pushes brush roller 108 to reset. Spring three 112 pushes column three 114 to reset, so that brush roller 108 can also move laterally while rotating, so that the bristles of brush roller 108 can cover a wider area.

[0053] The above is only a preferred specific implementation of the present invention; however, 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 solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plate heat exchanger, comprising a plate body (1), a plurality of guide pillars (2) fixedly connected to one side of the plate body (1), a plate body (3) movably sleeved outside the guide pillars (2), and a heat exchange fin (6) located between the plate body (1) and the plate body (3), characterized in that: A vertical mounting assembly (8) is connected to one side of the plate body (1), and the vertical mounting assembly (8) comprises a support column (81) fixedly connected to one side of the plate body (1), a rotating seat (82) rotatably sleeved on the outside of the support column (81), two lower side plates (84) symmetrically fixedly connected to the upper end of the rotating seat (82), two upper side plates (85) respectively fixedly connected to the upper ends of the two lower side plates (84), a guide portion (86) fixedly connected to one side of the two upper side plates (85) and the two lower side plates (84), and a guide groove (83) provided on one side of the plate body (1) to accommodate the guide portion (86); The second plate body (3) is provided with a second limiting groove (32) for facilitating the two upper side plates (85) to pass through, and a first limiting groove (31) for facilitating the two lower side plates (84) and the rotating seat (82) to pass through. A pressing and leveling assembly (9) is also connected between the two upper side plates (85) and the two lower side plates (84), and the pressing and leveling assembly (9) comprises a movable groove (91) provided inside the two upper side plates (85) and the two lower side plates (84), a guide rod (92) fixedly connected to the inner wall of the movable groove (91), a slide seat (93) slidably connected in the movable groove (91) and movably sleeved outside the guide rod (92), a spring (94) sleeved outside the guide rod (92), and a pressure plate (96) connected to adjacent slide seats (93) on both sides; The two ends of the spring 1 (94) are respectively connected to one side of the slide seat (93) and the inner wall of the movable groove 1 (91); An insert block (95) is movably inserted inside the slide seat (93), and slots (99) matching the insert block (95) are provided on both sides of the pressure plate (96), and one end of the insert block (95) passes through the slide seat (93) and is inserted in the slot (99).

2. A plate heat exchanger according to claim 1, characterized in that: A plurality of flanges (97) are integrally formed on one side of the pressure plate (96), and the interiors of the plurality of flanges (97) are all connected to elastic pressure-applying portions (98), the elastic pressure-applying portions (98) comprising a column (982) fixedly connected to the interior of flange (97), a column (981) movably connected to the interior of flange (97) and movably sleeved on the exterior of column (982), and a spring (983) sleeved on the exterior of column (982), and one end of column (981) passes through flange (97) and extends outward, and the extended end of column (981) is rotatably connected to a ball (984).

3. A plate heat exchanger according to claim 2, characterized in that: The pressing plate (96) further has a cavity formed inside, and a cleaning unit (10) is connected inside the cavity. The cleaning unit (10) comprises two sets of tooth keys (103) symmetrically formed on the inner wall of the cavity, a seat body (102) slidably connected to the inner wall of the cavity, two movable cavities (105) symmetrically formed inside the seat body (102), two rotating rods (106) rotatably connected to the inner walls of the two movable cavities (105), and a brush roller (106) sleeved on the outside of the rotating rod (106). 108), two gears (107) rotatably connected to both sides of the seat body (102) and respectively fixed to the two rotating rods (106), the upper end of the pressure plate (96) is fixedly connected to the motor (101), the seat body (102) has a screw rod (104) threaded inside, one end of the screw rod (104) is fixedly connected to the output shaft of the motor (101) and the other end of the screw rod (104) is rotatably connected to the movable chamber (105), and the gear (107) is meshed with the tooth key (103).

4. A plate heat exchanger according to claim 3, characterized in that: The outer surface of the rotating rod (106) is provided with a sliding groove (1061), and the inner wall of the brush roller (108) is integrally formed with a sliding strip which is slidably connected in the sliding groove (1061).

5. A plate heat exchanger according to claim 4, characterized in that: The inner wall of the movable cavity (105) is symmetrically provided with two sets of flanges (109), one end of the two rotating rods (106) is sleeved with a reset portion (12), and the other end of the two rotating rods (106) is internally connected with a movable portion (11), the movable portion (11) comprising a movable groove (111) provided inside the rotating rod (106) and the gear (107) and connected to the slide groove (1061), a column (3) movably connected to the movable groove (111), and a movable portion (111) disposed inside the rotating rod (106) and the gear (107). (114), a spring three (112) located in the movable groove two (111) and having two ends respectively connected to the column three (114) and the inner wall of the movable groove two (111), and a disk (113) movably sleeved on the outside of the rotating rod (106) and passing through the movable groove two (111) and fixedly connected to the column three (114), one end of the column three (114) passing through the movable groove two (111) and extending outward, and the extended end of the column three (114) is rotatably connected to the ball two (115).

6. A plate heat exchanger according to claim 5, characterized in that: The reset portion (12) comprises a sleeve body 1 (121) fixedly connected to the outside of the rotating rod (106), a sleeve body 2 (123) movably sleeved to the outside of the rotating rod (106), and a spring 4 (122) connecting the sleeve body 1 (121) and the sleeve body 2 (123).

7. A plate heat exchanger according to claim 6, characterized in that: The plate body 1 (1), the plate body 2 (3) and the heat exchange plate (6) are all provided with flow passage openings (7), and a plurality of screw rods (4) are passed through the plate body 1 (1) and the plate body 2 (3), and one end of the screw rod (4) passes through a side of the plate body 2 (3) and is screwed into a locking screw sleeve (5).

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