A stacked heat exchanger assembly and heat exchange device

Abstract

The present invention discloses a stacked heat exchanger assembly and a heat exchange device, which relate to the technical field of heat exchangers, and include: a base plate; a clamping plate, which is slidably connected to the base plate; a plurality of heat exchange fins, which are distributed between the base plate and the clamping plate; a plurality of disassembly units, which are detachably connected to each heat exchange fin in a one-to-one correspondence; a plurality of expansion units, which enable each heat exchange fin to move, and two adjacent heat exchange fins to maintain the same spacing; each expansion unit is arranged on each disassembly unit in a one-to-one correspondence; a driving unit, which is arranged on the base plate, and has a first stroke and a second stroke when the driving unit is working; the expansion unit is driven by the driving unit to drive each heat exchange fin to move, so that a certain maintenance space is provided between each heat exchange fin; and in the process of moving each heat exchange fin, the heat exchange fin is pre-disassembled passively, so that the staff can replace the heat exchange fin from the maintenance space between each heat exchange fin.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchangers, in particular to a stacked heat exchanger assembly and a heat exchange device. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc., and are widely used.

[0003] For example, the publication number is CN216049396U, the publication date is March 15, 2022, and the name is "A Corrosion-Resistant Sealing Gasket and Plate Heat Exchanger", which includes a sealing gasket body consisting of a sealing gasket, two one-sealing gasket flow channel side corner hole areas and a second sealing gasket, and also includes a sealing flow channel side corner hole area longitudinally symmetrically arranged with the one-sealing gasket flow channel side corner hole area, the two sealing gaskets are connected to the two sealing flow channel side corner hole areas by connecting ribs, and the sealing gasket body or the sealing flow channel side corner hole area is covered with a fluororubber anti-corrosion layer. It also includes a plate heat exchanger using the above-mentioned sealing gasket. Such a structural design greatly reduces the material cost of the sealing gasket.

[0004] In the prior art such as that including the above-mentioned patent, a heat exchanger is usually composed of a plurality of heat exchange plates which are arranged in combination so that the heat exchange plates form a row and are only close to each other so that cold and hot liquid media can exchange heat through the heat exchange plates. However, in the prior art, since each heat exchange plate is connected by a long screw and a nut, once the heat exchange plate is damaged and the damaged heat exchange plate happens to be located in the center of a row of radiators, the damaged radiator can only be replaced by removing the screws, nuts, and the heat exchange plates adjacent to the damaged heat exchange plate. This greatly reduces the maintenance efficiency. Summary of the invention

[0005] The object of the present invention is to provide a stacked heat exchanger assembly to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a stacked heat exchanger assembly, comprising:

[0007] Base plate;

[0008] A tightening plate, which is slidably connected to the bottom plate;

[0009] A plurality of heat exchange fins are distributed between the bottom plate and the abutting plate;

[0010] A plurality of disassembly units, which are detachably connected to each heat exchange plate in a one-to-one correspondence;

[0011] A plurality of expansion units, which enable each heat exchanger plate to move, and two adjacent heat exchanger plates to maintain the same spacing; each expansion unit is arranged on each disassembly unit in a one-to-one correspondence;

[0012] A driving unit is arranged on the bottom plate, and when the driving unit is working, it has a first stroke and a second stroke;

[0013] In the first stroke: the abutting plate is driven away from the bottom plate, so that the heat exchanger plates move synchronously, and the heat exchanger plates change from the mutually abutting state to the expanded state, and there is an inspection space between two adjacent heat exchanger plates, and the pre-disassembly is completed between each disassembly unit and its corresponding heat exchanger plate;

[0014] In the second stroke: the abutting plate is driven to reset, the heat exchanger plates are reset synchronously, and the heat exchanger plates are abutted against each other, and each disassembly unit is re-locked with its corresponding heat exchanger plate.

[0015] Furthermore, a vertical rod is fixedly connected to the bottom of the heat exchange plate, a telescopic rod is slidably connected inside the vertical rod, locking grooves are provided on both sides of the telescopic rod, a first spring is provided between the telescopic rod and the inner wall of the vertical rod, and a lever is fixedly connected to the telescopic rod.

[0016] Furthermore, the disassembly unit includes a sliding seat slidably connected to the base plate, the sliding seat is plugged into the telescopic rod, a worm wheel is fixedly connected to the sliding seat, two arc grooves are symmetrically provided on the worm wheel, a worm is rotatably connected to the sliding seat, a gear is fixedly connected to the worm, and two locking rods are symmetrically slidably connected to the sliding seat, the two locking rods are plugged into the two locking grooves one by one, and the two locking rods are fixedly connected to abutment rods, and the two abutment rods are slidably abutted against the two arc grooves one by one.

[0017] Furthermore, the expansion unit includes a sliding column fixedly connected to the bottom of the slide seat, the sliding column is slidably connected to the bottom plate, two connecting rods are cross-rotatably connected to the sliding column, and the connecting rod is rotatably connected to the other two connecting rods in the adjacent expansion units on both sides in a diamond shape.

[0018] Furthermore, the driving unit includes a first reciprocating screw rod rotatably connected to the base plate, the first reciprocating screw rod is screwed to the clamping plate, and the first reciprocating screw rod is screwed to a sliding seat closest to the clamping plate, two racks are vertically slidably connected to the base plate, both racks penetrate and extend to the outside of the clamping plate, both racks are abutted and matched with the gear, both racks are fixedly connected with an adjusting rod, two second springs are fixedly connected to the clamping plate, ends of the two second springs are respectively abutted and matched with the two adjusting rods, and a cam is fixedly connected to the first reciprocating screw rod, the cam has a protrusion, and the protrusions are respectively abutted and matched with the two adjusting rods.

[0019] Furthermore, the teeth of the two racks are arranged opposite to each other.

[0020] Furthermore, it also includes a cleaning unit, which includes a second reciprocating screw rotatably connected to the base plate, a movable plate slidably connected to the base plate, the movable plate and the second reciprocating screw are screwed, a slider is transversely slidably connected to the movable plate, a third spring is fixedly connected to the slider, one end of the third spring is fixedly connected to a cleaning plate, the cleaning plate is slidably abutted against each heat exchange plate, a reciprocating rod is fixedly connected to the bottom of the cleaning plate, a reciprocating groove is opened on the base plate, and the reciprocating rod is slidably connected in the reciprocating groove.

[0021] Furthermore, brushes are arranged on both inner side walls of the cleaning plate.

[0022] Furthermore, it also includes a linkage unit, which includes a first pulley rotatably connected to the base plate, a first ratchet fixedly connected to the first pulley, a first pawl fixedly connected to the first reciprocating screw, the first ratchet and the first pawl snap-fitting together, a second pulley rotatably connected to the second reciprocating screw, a belt is arranged between the second pulley and the first pulley, a second ratchet fixedly connected to the second pulley, a second pawl rotatably connected to the second reciprocating screw, and the second pawl snap-fitting together with the second ratchet.

[0023] Furthermore, it comprises a stacked heat exchanger assembly as described in any one of the above items.

[0024] In the above technical solution, the present invention provides a stacked heat exchanger assembly:

[0025] Driven by the driving unit, the expansion unit drives each heat exchanger to move, so that there is a certain maintenance space between each heat exchanger; and in the process of moving each heat exchanger, the heat exchanger is pre-disassembled passively, so that the staff can replace the heat exchanger from the maintenance space between each heat exchanger.

[0026] After each heat exchanger fin is moved by the expansion unit, the cleaning unit can be driven by the power of the driving unit to perform cleaning operations from the maintenance space between adjacent heat exchangers, thereby effectively cleaning the dirt on the heat exchanger fins. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of the overall structure from another angle provided by an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of the bottom structure of the heat exchanger and expansion unit provided in an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of the structure of the heat exchanger, expansion unit, and disassembly unit provided in an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of the disassembly unit structure provided by an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of a cross-sectional structure of a slide provided in an embodiment of the present invention;

[0034] Figure 7 A schematic diagram of a local enlarged structure of location A provided in an embodiment of the present invention;

[0035] Figure 8 A schematic diagram of the exploded structure of a slide seat and a telescopic rod provided in an embodiment of the present invention;

[0036] Fig. 9 A schematic diagram of a driving unit provided in an embodiment of the present invention;

[0037] Fig.10 A partial enlarged schematic diagram of point B provided in an embodiment of the present invention;

[0038] Fig.11 A schematic diagram of the structure of a cleaning unit provided in an embodiment of the present invention;

[0039] Fig.12 A schematic diagram of the linkage unit structure provided in an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1. Bottom plate; 11. Reciprocating groove; 2. Abutment plate; 3. Heat exchange plate; 31. Vertical rod; 32. Telescopic rod; 321. Locking groove; 33. First spring; 34. Push rod; 4. Expansion unit; 41. Sliding column; 42. Connecting rod; 5. Disassembly unit; 51. Sliding seat; 52. Worm gear; 521. Arc groove; 53. Worm; 54. Gear; 55. Locking rod; 56. Abutment rod; 6. Driving unit; 61. First reciprocating screw rod; 62. rack; 63. adjusting rod; 64. second spring; 65. cam; 651. raised portion; 7. cleaning unit; 71. second reciprocating screw; 72. moving plate; 73. slider; 74. cleaning plate; 75. third spring; 76. reciprocating rod; 8. linkage unit; 81. first pulley; 82. first ratchet; 83. first pawl; 84. second pulley; 85. belt; 86. second ratchet; 87. second pawl. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0043] See also Figure 1-12 A stacked heat exchanger assembly provided by an embodiment of the present invention includes: a bottom plate 1; and a clamping plate 2 which is slidably connected to the bottom plate 1.

[0044] A plurality of heat exchange fins 3 are distributed between the bottom plate 1 and the abutting plate 2 .

[0045] Specifically, a vertical rod 31 is fixedly connected to the bottom of the heat exchange plate 3, a telescopic rod 32 is slidably connected inside the vertical rod 31, locking grooves 321 are provided on both sides of the telescopic rod 32, a first spring 33 is provided between the telescopic rod 32 and the inner wall of the vertical rod 31, and a lever 34 is fixedly connected to the telescopic rod 32.

[0046] It is worth mentioning that: the bottom of the vertical rod 31 abuts against the bottom of the worm gear 52, the telescopic rod 32 passes through the worm gear 52 and is plugged into the slide seat 51, and the slide seat 51 is provided with a plug-in slot for the telescopic rod 32 to be plugged into; more specifically, the telescopic rod 32 and the plug-in slot are square shapes that match each other; when disassembling the heat exchange plate 3, it is necessary to manually push the lever 34 upwards to squeeze the first spring 33 so that the telescopic rod 32 retracts into the vertical rod 31. When the telescopic rod 32 is completely removed from the plug-in slot on the slide seat 51, the heat exchange plate 3 can be disassembled.

[0047] It should be understood that the disassembly unit 5 only unlocks the telescopic rod 32 to achieve pre-disassembly, and the actual disassembly requires moving the telescopic rod 32 out of the insertion slot of the slide seat 51; the advantage of this is that after the disassembly unit 5 unlocks the telescopic rod 32, the telescopic rod 32 is still inserted in the insertion slot, so that the position of the heat exchange plate 3 remains unchanged, making it easier for the cleaning unit 7 to clean the heat exchange plate 3.

[0048] A plurality of disassembly units 5 are detachably connected to the heat exchange fins 3 in a one-to-one correspondence.

[0049] Specifically, the disassembly unit 5 includes a sliding seat 51 slidably connected to the base plate 1, the sliding seat 51 is plugged into the telescopic rod 32, a worm gear 52 is fixedly connected to the sliding seat 51, two arc grooves 521 are symmetrically provided on the worm gear 52, a worm 53 is rotatably connected to the sliding seat 51, a gear 54 is fixedly connected to the worm 53, two locking rods 55 are symmetrically slidably connected to the sliding seat 51, the two locking rods 55 are plugged into the two locking grooves 321 respectively, and the two locking rods 55 are fixedly connected to abutment rods 56, and the two abutment rods 56 are slidably abutted against the two arc grooves 521 respectively.

[0050] When the gear 54 rotates, the gear 54 drives the worm wheel 52 to rotate through the worm 53. The worm wheel 52 abuts against the abutment rod 56 through the arc groove 521, driving the two locking rods 55 away from each other, thereby pulling the two locking rods 55 out of the locking groove 321 to release the lock on the telescopic rod 32.

[0051] A plurality of expansion units 4 are used to move each heat exchange fin 3 , and to keep the same distance between two adjacent heat exchange fins 3 ; each expansion unit 4 is arranged on each disassembly unit 5 in a one-to-one correspondence.

[0052] Specifically, the expansion unit 4 includes a slide column 41 fixedly connected to the bottom of the slide seat 51, the slide column 41 is slidably connected to the base plate 1, and two connecting rods 42 are cross-rotatably connected to the slide column 41, and the connecting rod 42 is rotatably connected to the other two connecting rods 42 in the adjacent expansion units 4 on both sides in a diamond shape.

[0053] A driving unit 6 is arranged on the bottom plate 1. When the driving unit 6 is working, it has a first stroke and a second stroke;

[0054] In the first stroke: the abutting plate 2 is driven away from the bottom plate 1, so that the heat exchanger fins 3 move synchronously, and the heat exchanger fins 3 change from the mutually abutting state to the expanded state, and there is an inspection space between two adjacent heat exchanger fins 3, and the pre-disassembly is completed between each disassembly unit 5 and the corresponding heat exchanger fin 3;

[0055] In the second stroke: the abutting plate 2 is driven to reset, the heat exchanger plates 3 are reset synchronously, and the heat exchanger plates 3 are abutted against each other, and each disassembly unit 5 is re-locked with its corresponding heat exchanger plate 3 .

[0056] Specifically, the driving unit 6 includes a first reciprocating screw rod 61 rotatably connected to the base plate 1, the first reciprocating screw rod 61 is screwed to the clamping plate 2, and the first reciprocating screw rod 61 is screwed to a slide seat 51 closest to the clamping plate 2, and two racks 62 are vertically slidably connected to the base plate 1; specifically, the teeth of the two racks 62 are arranged opposite to each other; the two racks 62 both penetrate and extend to the outside of the clamping plate 2, and the two racks 62 are both abutted and matched with the gear 54, and the two racks 62 are fixedly connected with an adjusting rod 63, and the clamping plate 2 is fixedly connected with two second springs 64, and the ends of the two second springs 64 are respectively abutted and matched with the two adjusting rods 63, and the first reciprocating screw rod 61 is fixedly connected with a cam 65, and the cam 65 has a protrusion 651, and the protrusion 651 is respectively abutted and matched with the two adjusting rods 63.

[0057] It should be understood that the first reciprocating screw 61 only needs to be screwed to a slide 51 closest to the clamping plate 2. When the slide 51 moves, it will drive the heat exchange plates 3 to expand through the expansion unit 4, so that there is a certain distance between the heat exchange plates 3, without the need for each slide 51 to be screwed to the first reciprocating screw 61.

[0058] Among them, as Fig.10 shown, the rack 62 is a schematic cross-section. Through grooves are provided on the pressing plate 2, so that the rack 62 can penetrate the pressing plate 2. When the heat exchange fins 3 are in the abutting state, the pressing plate 2 abuts against the outermost heat exchange fin 3. At this time, the second springs 64 respectively abut against the two racks 62 in a one-to-one correspondence. When the heat exchange fins 3 expand, the pressing plate 2 slides on the bottom plate 1, driving the second springs 64 to move synchronously. At this time, the second springs 64 abut against the adjusting rods 63.

[0059] It should be noted that: the first reciprocating lead screw 61 only rotates at a small angle in the first direction, and the heat exchange fins 3 can be expanded. Among them, the first reciprocating lead screw 61 drives the cam 65 to rotate. The cam 65 abuts and cooperates with one of the adjusting rods 63 through the protruding part 651. The purpose is: when the heat exchange fins 3 expand, during the process of the heat exchange fins 3 moving towards the pressing plate 2, the gear 54 is passively meshed with one of the racks 62, driving the gear 54 to rotate. Through the cooperation of the gear 54, the worm 53, the worm wheel 52, and the locking rod 55, the locking of the telescopic rod 32 is released; and during the process of the heat exchange fins 3 retracting and resetting, the first reciprocating lead screw 61 continues to rotate in the first direction, so that the protruding part 651 meshes with the other adjusting rod 63, driving the other rack 62 to be able to mesh with the gear 54, so that during the retracting movement of the heat exchange fins 3, the telescopic rod 32 is locked again.

[0060] Preferably, after the heat exchange fins 3 are expanded, not only can the heat exchange fins 3 be disassembled and replaced, but also the heat exchange fins 3 can be cleaned. The reason is that after the heat exchange fins 3 are used for a long time, due to the action of cold and hot media, scale will exist on the heat exchange fins 3, and the scale will affect the heat exchange efficiency of the heat exchange fins 3.

[0061] It further includes a cleaning unit 7, which includes a second reciprocating lead screw 71 rotatably connected to the bottom plate 1. A moving plate 72 is slidably connected to the bottom plate 1. The moving plate 72 is screwed to the second reciprocating lead screw 71. A slider 73 is slidably connected horizontally to the moving plate 72. A third spring 75 is fixedly connected to the slider 73. One end of the third spring 75 is fixedly connected to a cleaning plate 74. Specifically, brushes are provided on both inner side walls of the cleaning plate 74; more specifically, the cleaning plate 74 is in a "C" - shaped structure, and the distance between the two inner side walls of the cleaning plate 74 is greater than the thickness of the heat exchange fin 3; the cleaning plate 74 is slidably abutted and cooperated with each heat exchange fin 3. A reciprocating rod 76 is fixedly connected to the bottom of the cleaning plate 74. A reciprocating groove 11 is provided on the bottom plate 1; specifically, the reciprocating groove 11 is in a wavy shape; the reciprocating rod 76 is slidably connected in the reciprocating groove 11.

[0062] When in use, the second reciprocating screw 71 rotates to drive the movable plate 72 to move on the bottom plate 1, and the movable plate 72 and the cleaning plate 74 are elastically and slidably connected. Through the cooperation of the reciprocating rod 76 and the reciprocating groove 11, the cleaning plate 74 is driven to make a horizontal reciprocating linear motion while following the movement of the movable plate 72, so that the two inner walls of the cleaning plate 74 respectively abut against the two sides of the heat exchange plate 3, thereby cleaning the heat exchange plate 3.

[0063] In this embodiment: it also includes a linkage unit 8, which includes a first pulley 81 rotatably connected to the base plate 1, a first ratchet 82 fixedly connected to the first pulley 81, a first pawl 83 fixedly connected to the first reciprocating screw 61, the first ratchet 82 and the first pawl 83 snap-fitting together, a second pulley 84 rotatably connected to the second reciprocating screw 71, a belt 85 is provided between the second pulley 84 and the first pulley 81, a second ratchet 86 fixedly connected to the second pulley 84, a second pawl 87 rotatably connected to the second reciprocating screw 71, and the second pawl 87 and the second ratchet 86 snap-fitting together.

[0064] like Fig.12 As shown, when in use, the first ratchet 82 is driven to rotate clockwise. At this time, the first ratchet 82 will drive the first pawl 83 and the first reciprocating screw 61 to move, thereby rotating the first reciprocating screw 61 to expand each heat exchange plate 3. At the same time, the first ratchet 82 will drive the second ratchet 86 to rotate through the power transmission of the first pulley 81, the second pulley 84, and the belt 85. However, the second ratchet 86 will not drive the second pawl 87 to rotate, that is, the cleaning unit 7 is in a stationary state.

[0065] After the expansion is completed, the first ratchet 82 rotates counterclockwise. At this time, the first pawl 83 will not rotate with the first ratchet 82, but through the power transmission of the first pulley 81, the second pulley 84, and the belt 85, the second ratchet 86 will drive the second pawl 87 and the second reciprocating screw 71 to rotate, driving the cleaning unit 7 to start working.

[0066] It should be noted that when the cleaning unit 7 performs cleaning work, the movable plate 72 is driven to move from the position of the abutting plate 2 to the side wall of the bottom plate 1 and reset to the initial position, that is, the movable plate 72 moves back and forth once and cleans the heat exchange plate 3 twice.

[0067] After cleaning is completed, the first ratchet wheel 82 is rotated clockwise again. At this time, the first reciprocating screw 61 and the slide seat 51 are screwed together to drive the heat exchange fins 3 to retract, so that the heat exchange fins 3 abut against each other and are in the initial state.

[0068] A heat exchange device, comprising a stacked heat exchanger assembly as described in any one of the above items.

[0069] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stacked heat exchanger assembly, characterized in that: include: Bottom plate (1); A clamping plate (2) slidably connected to the bottom plate (1); A plurality of heat exchange fins (3) distributed between the bottom plate (1) and the abutting plate (2); A vertical rod (31) is fixedly connected to the bottom of the heat exchange plate (3), a telescopic rod (32) is slidably connected inside the vertical rod (31), locking grooves (321) are provided on both sides of the telescopic rod (32), a first spring (33) is provided between the telescopic rod (32) and the inner wall of the vertical rod (31), and a lever (34) is fixedly connected to the telescopic rod (32); A plurality of detachable units (5) which are detachably connected to the heat exchange fins (3) in a one-to-one correspondence; The disassembly unit (5) comprises a slide seat (51) slidably connected to the base plate (1), the slide seat (51) being plugged into and matched with the telescopic rod (32), a worm wheel (52) being fixedly connected to the slide seat (51), two arc grooves (521) being symmetrically provided on the worm wheel (52), a worm (53) being rotatably connected to the slide seat (51), a gear (54) being fixedly connected to the worm (53), two locking rods (55) being symmetrically slidably connected to the slide seat (51), the two locking rods (55) being plugged into and matched with the two locking grooves (321) in a one-to-one correspondence, and abutment rods (56) being fixedly connected to the two locking rods (55), the two abutment rods (56) being slidably abutted against the two arc grooves (521) in a one-to-one correspondence; A plurality of expansion units (4) are used to move each heat exchange fin (3) and keep the same spacing between two adjacent heat exchange fins (3); each expansion unit (4) is arranged on each disassembly unit (5) in a one-to-one correspondence; The expansion unit (4) comprises a sliding column (41) fixedly connected to the bottom of the sliding seat (51), the sliding column (41) being slidably connected to the bottom plate (1), two connecting rods (42) being cross-rotatably connected to the sliding column (41), and the connecting rod (42) being rotatably connected to the other two connecting rods (42) in the adjacent expansion units (4) on both sides in a diamond shape; A driving unit (6) is arranged on the bottom plate (1); when the driving unit (6) is in operation, it has a first stroke and a second stroke; In the first stroke: the abutting plate (2) is driven away from the bottom plate (1), so that the heat exchange fins (3) move synchronously, and the heat exchange fins (3) change from a mutually abutting state to an expanded state, and an inspection space is provided between two adjacent heat exchange fins (3), and pre-disassembly is completed between each disassembly unit (5) and its corresponding heat exchange fin (3); In the second stroke: the abutting plate (2) is driven to reset, the heat exchange fins (3) are reset synchronously, and the heat exchange fins (3) are abutted against each other, and each disassembly unit (5) is re-locked with its corresponding heat exchange fin (3); The driving unit (6) comprises a first reciprocating screw (61) rotatably connected to the base plate (1), the first reciprocating screw (61) being screwed to the abutting plate (2), and the first reciprocating screw (61) being screwed to a sliding seat (51) closest to the abutting plate (2), two racks (62) being vertically slidably connected to the base plate (1), the two racks (62) both passing through and extending to the outside of the abutting plate (2), and the two racks (62) both abutting against the gear (54). The two racks (62) are fixedly connected with an adjusting rod (63), the abutting plate (2) is fixedly connected with two second springs (64), the ends of the two second springs (64) are respectively abutted and matched with the two adjusting rods (63), and the first reciprocating screw rod (61) is fixedly connected with a cam (65), the cam (65) has a protrusion (651), and the protrusion (651) is respectively abutted and matched with the two adjusting rods (63).

2. A stacked heat exchanger assembly according to claim 1, characterized in that: The teeth of the two racks (62) are arranged opposite to each other.

3. The stacked heat exchanger assembly according to claim 1, characterized in that: The cleaning unit (7) further comprises a cleaning unit (7), which comprises a second reciprocating screw (71) rotatably connected to the base plate (1); a movable plate (72) is slidably connected to the base plate (1); the movable plate (72) is screwed to the second reciprocating screw (71); a slider (73) is transversely slidably connected to the movable plate (72); a third spring (75) is fixedly connected to the slider (73); one end of the third spring (75) is fixedly connected to a cleaning plate (74); the cleaning plate (74) is slidably abutted against each heat exchange plate (3); a reciprocating rod (76) is fixedly connected to the bottom of the cleaning plate (74); a reciprocating groove (11) is provided on the base plate (1); and the reciprocating rod (76) is slidably connected in the reciprocating groove (11).

4. A stacked heat exchanger assembly according to claim 3, characterized in that: Both inner side walls of the cleaning plate (74) are provided with brushes.

5. The stacked heat exchanger assembly according to claim 3, characterized in that: The invention also comprises a linkage unit (8), which comprises a first pulley (81) rotatably connected to the base plate (1), a first ratchet (82) fixedly connected to the first pulley (81), a first pawl (83) fixedly connected to the first reciprocating screw rod (61), the first ratchet (82) and the first pawl (83) being snap-fitted, a second pulley (84) rotatably connected to the second reciprocating screw rod (71), a belt (85) being arranged between the second pulley (84) and the first pulley (81), a second ratchet (86) fixedly connected to the second pulley (84), a second pawl (87) rotatably connected to the second reciprocating screw rod (71), the second pawl (87) and the second ratchet (86) being snap-fitted.

6. A heat exchange device, characterized in that: It comprises a stacked heat exchanger assembly according to any one of claims 1-5.

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