A wide-channel plate heat exchanger

Abstract

The present application relates to the technical field of plate heat exchangers, and in particular to a wide-channel plate heat exchanger, comprising a fixed support plate, a movable support plate, and a plurality of heat exchange plates. The movable support plate is disposed opposite the fixed support plate, and a connecting assembly is disposed on the movable support plate, the connecting assembly being located between the fixed support plate and the movable support plate; a plurality of heat exchange plates are disposed between the fixed support plate and the movable support plate, the connecting assembly being connected to each of the plurality of heat exchange plates. When the movable support plate moves, the connecting assembly can drive the plurality of heat exchange plates to move, and increase or decrease the spacing between adjacent heat exchange plates. The present application has the effect of reducing work difficulty.

Description

Technical Field

[0001] The present application relates to the technical field of plate heat exchangers, and in particular to a wide-channel plate heat exchanger. Background Art

[0002] Currently, a plate heat exchanger is composed of a series of stacked, corrugated heat exchange plates. Thin rectangular channels are formed between the plates, through which the medium (liquid or vapor) flows, exchanging heat through the plates. Plate heat exchangers are ideal for liquid-liquid and liquid-vapor heat exchange. They feature high heat exchange efficiency, minimal heat loss, a compact and lightweight structure, a small footprint, easy installation and cleaning, a wide range of applications, and a long service life. Plate heat exchangers require regular inspection and maintenance. If damaged heat exchange plates are discovered during inspection, the plate heat exchanger must be disassembled for replacement or repair.

[0003] Regarding the related technologies mentioned above: In a plate heat exchanger, multiple heat exchange plates are stacked tightly together, so that the multiple heat exchange plates can only be disassembled one by one. Therefore, when a damaged heat exchange plate is located between two heat exchange plates, the surrounding heat exchange plates need to be removed first before the damaged heat exchange plate can be replaced or repaired, which increases the difficulty of the work. Summary of the Invention

[0004] In order to reduce the difficulty of the work, the present application provides a wide-channel plate heat exchanger.

[0005] This application provides a wide-channel plate heat exchanger, which adopts the following technical solutions:

[0006] A wide-channel plate heat exchanger, comprising:

[0007] Fixing support plate;

[0008] A movable support plate is arranged opposite to the fixed support plate, and a connecting component is provided on the movable support plate, and the connecting component is located between the fixed support plate and the movable support plate;

[0009] Multiple heat exchange plates are arranged between the fixed support plate and the movable support plate. The connecting components are respectively connected to the multiple heat exchange plates. When the movable support plate moves, the connecting components can drive the multiple heat exchange plates to move and increase or decrease the distance between adjacent heat exchange plates.

[0010] By adopting the above technical solution, when a damaged heat exchange plate needs to be replaced, the movable support plate is first moved away from the fixed support plate, so that the movable support plate drives the connecting assembly to move, and the connecting assembly drives multiple heat exchange plates to move, so that the distance between adjacent heat exchange plates is increased, thereby facilitating the removal of the damaged heat exchange plate from between two adjacent heat exchange plates, so as to replace or repair the damaged heat exchange plate, thereby helping to reduce the difficulty of the work.

[0011] Optionally, the connecting assembly includes a plurality of slides and hinges arranged between adjacent slides, the plurality of slides are located between the fixed support plate and the movable support plate, the heat exchange plate corresponds to the slides one by one and is detachably connected, and the slides close to the movable support plate among the plurality of slides are connected to the movable support plate.

[0012] By adopting the above technical solution, when the movable support plate moves, it can drive the slide to move. The slide can then drive the adjacent slide to move via the hinge. This facilitates the use of the slide to move multiple heat exchange plates, thereby adjusting the position of the heat exchange plates and controlling the spacing between adjacent heat exchange plates. The heat exchange plates are also detachably connected to the slide, allowing them to be removed from the slide, making it easier to replace or repair any heat exchange plate.

[0013] Optionally, the hinged member includes a first hinged rod and a second hinged rod, one of the two adjacent slides is hinged to the first hinged rod, the other slide is hinged to the second hinged rod, and the end of the first hinged rod away from the slide is hinged to the end of the second hinged rod away from the slide.

[0014] By adopting the above technical solution, when the movable support plate moves away from the fixed support plate, the movable support plate can drive the slide to move, and the slide can drive the first hinged rod to move, so that the first hinged rod drives the second hinged rod to rotate relative to each other. During this process, the distance between two adjacent slides increases, thereby increasing the distance between two adjacent heat exchange plates, thereby facilitating the replacement or maintenance of the heat exchange plates. Furthermore, when the first and second hinged rods rotate to a specified position, the first hinged rod can drive the slide to move via the second hinged rod, thereby facilitating the movement of multiple slides, which can then be used to drive multiple heat exchange plates to a specified position.

[0015] Optionally, a mounting seat is included, a slide rail is provided on the mounting seat, the fixed support plate is provided on the mounting seat, and the movable support plate and the slide seat are respectively slidably provided on the slide rail.

[0016] By adopting the above technical solution, the slide rail can guide the movable support plate and the slide seat, so that the moving tracks of the movable support plate and the slide seat are fixed, which is beneficial to reduce the possibility of deviation during the movement of the movable support plate and the slide seat.

[0017] Optionally, a plug-in slot is provided on the slide seat, a plug-in block is provided on the heat exchange plate, and the plug-in block is inserted into the plug-in slot.

[0018] By adopting the above technical solution, the plug-in block is inserted into the plug-in slot, so that the heat exchange plate can be easily fixed to the slide seat, which makes it easy to use the slide seat to drive the heat exchange plate to move, and on the other hand, it is easy to separate the heat exchange plate from the slide seat to replace or repair the heat exchange plate.

[0019] Optionally, a guide rod is provided on the fixed support plate, and the guide rod is located between the fixed support plate and the movable support plate. A slide groove is provided at one end of the heat exchange plate away from the plug-in block, and the guide rod is inserted into the slide groove. A clearance groove can be formed between the guide rod and the movable support plate. When the heat exchange plate is located at the clearance groove, the guide rod disengages from the slide groove.

[0020] By adopting the above technical solution, the guide rod can limit one end of the heat exchange plate, and the slide can limit the other end of the heat exchange plate through the plug-in block, which helps reduce the possibility of the heat exchange plate shifting, allowing the slide to stably drive the heat exchange plate. When the movable support plate moves away from the fixed support plate to a specified position, a clearance groove can be formed between the movable support plate and the guide rod. At this time, when the slide drives the heat exchange plate to move to the clearance groove, the guide rod is pulled out of the slide groove, thereby facilitating the movement of the heat exchange plate, so as to pull the plug-in block out of the plug-in slot and facilitate the replacement of the heat exchange plate.

[0021] Optionally, a connecting rod is provided on the fixed support plate, a connecting hole is opened on the movable support plate, and the connecting rod is slidably inserted into the connecting hole.

[0022] By adopting the above technical solution, the connecting rod is slidably inserted into the connecting hole, so that the connecting rod can guide the movable support plate, thereby helping to reduce the possibility of deviation of the movable support plate during movement.

[0023] Optionally, the connecting rod includes a first rod portion, a second rod portion and a threaded portion that are coaxially connected, the first rod portion is arranged on the fixed support plate, the threaded portion is located between the first rod portion and the second rod portion, a nut is slidingly provided on the second rod portion, and the second rod portion is slidingly inserted into the connecting hole, and when the end of the threaded portion away from the first rod portion passes through the connecting hole, the nut can be threadedly connected to the threaded portion and interfere with the movable support plate.

[0024] By adopting the above technical solution, when the position of the movable support plate needs to be fixed with respect to the fixed support plate, the movable support plate is first moved to a designated position. At this point, the multiple heat exchange plates are stacked together, and the end of the threaded portion away from the first rod portion passes through the connection hole. A nut is then threadedly connected to the threaded portion, causing the nut to contact the movable support plate, thereby facilitating the fixing of the movable support plate with respect to the fixed support plate. Furthermore, when the movable support plate needs to be moved away from the fixed support plate, the nut is first moved onto the second rod portion, so that the nut no longer restricts the position of the movable support plate, thereby facilitating the movement of the movable support plate.

[0025] Optionally, widening channels are formed between adjacent heat exchange plates.

[0026] By adopting the above technical solution and setting the widened channel, when the medium flows in the widened channel, the particulate matter carried in the medium can pass through the heat exchange plate, which is conducive to reducing the risk of blockage.

[0027] Optionally, a protrusion is provided on one side of the heat exchange plate, and a groove is formed on the other side of the heat exchange plate, and the protrusion and the groove are both located in the widened channel.

[0028] By adopting the above technical solution, the arrangement of the protrusions and the grooves increases the contact area between the heat exchange plate and the medium to a certain extent, thereby facilitating the improvement of the heat exchange efficiency of the heat exchanger.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. Through the mutual cooperation of the fixed support plate, the movable support plate and the connecting assembly, when the movable support plate drives the connecting assembly to move, the connecting assembly can drive the movement of multiple heat exchange plates to adjust the position of the heat exchange plates and the spacing between adjacent heat exchange plates. Therefore, when a damaged heat exchange plate needs to be replaced, the connecting assembly can be used to increase the spacing between adjacent heat exchange plates, making it easier to remove the damaged heat exchange plate from between two adjacent heat exchange plates, thereby facilitating the replacement or maintenance of the damaged heat exchange plate, and reducing the difficulty of work to a certain extent;

[0031] 2. Through the cooperation of the movable support plate, the slide, the first hinge rod and the second hinge rod, the spacing between the multiple slides can be adjusted, thereby facilitating the use of the slide to adjust the spacing between the multiple heat exchange plates;

[0032] 3. Through the mutual cooperation of the slide rail, the slide seat, the plug-in block and the guide rod, the heat exchange plate can be affected by the joint action of the guide rod and the plug-in block to reduce the possibility of the heat exchange plate deflecting, thereby facilitating the use of the slide seat to stably drive the heat exchange plate to move, and when a clearance groove is formed between the movable support plate and the guide rod, the slide seat can drive the heat exchange plate to move to the clearance groove, so as to facilitate the removal of the heat exchange plate from the slide seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the wide-channel plate heat exchanger in the embodiment of the present application.

[0034] Figure 2 It is a structural diagram of the heat exchange plate and the slide in the embodiment of the present application.

[0035] Figure 3 It is along Figure 2 Partial cross-sectional view along line AA.

[0036] Figure 4 It is a front view of the wide-channel plate heat exchanger in an embodiment of the present application.

[0037] Figure 5 It is a front view of a wide-channel plate heat exchanger in another state in an embodiment of the present application.

[0038] Figure 6 It is along Figure 4 Partial cross-sectional view of the two heat exchange plates along line BB.

[0039] Description of reference numerals:

[0040] 1. Fixed support plate; 11. Connecting rod; 111. First rod portion; 112. Second rod portion; 113. Threaded portion; 114. Nut; 12. Guide rod; 13. Connecting pipe; 2. Movable support plate; 21. Connecting hole; 22. Gap groove; 3. Mounting seat; 31. Slide rail; 32. Vertical plate; 4. Heat exchange plate; 41. Plug-in block; 42. Slide groove; 43. Widening channel; 44. Protrusion; 45. Groove; 5. Connecting assembly; 51. Slide seat; 511. Plug-in groove; 52. Hinge; 521. First hinged rod; 522. Second hinged rod. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-6 This application is described in further detail.

[0042] The embodiments of the present application disclose a wide-channel plate heat exchanger.

[0043] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] Reference Figure 1 The wide-channel plate heat exchanger includes a fixed support plate 1, a movable support plate 2, a mounting seat 3, and a plurality of heat exchange plates 4. The fixed support plate 1 is mounted on the mounting seat 3, the movable support plate 2 is slidably arranged on the mounting seat 3 and is arranged opposite to the fixed support plate 1, and a connecting component 5 is provided on the movable support plate 2. The plurality of heat exchange plates 4 are arranged between the fixed support plate 1 and the movable support plate 2, and the connecting components 5 are respectively connected to the plurality of heat exchange plates 4. When the movable support plate 2 moves, the movable support plate 2 can drive the plurality of heat exchange plates 4 to move through the connecting component 5, and increase or decrease the distance between adjacent heat exchange plates 4, thereby facilitating the replacement or maintenance of any heat exchange plate 4, thereby helping to reduce the difficulty of work.

[0045] The mounting seat 3 is fixedly connected to a slide rail 31 , which is horizontally arranged, and the movable support plate 2 is slidably arranged on the slide rail 31 , so that the slide rail 31 can guide the movable support plate 2 to reduce the possibility of deviation of the movable support plate 2 when moving.

[0046] A connecting rod 11 is fixedly connected to the fixed support plate 1. The connecting rod 11 is parallel to the slide rail 31. Two connecting rods 11 are provided and symmetrically distributed on the fixed support plate 1. In this embodiment, the connecting rod 11 includes a first rod portion 111, a second rod portion 112 and a threaded portion 113 that are coaxially connected.

[0047] The first rod portion 111 is fixedly connected to the fixed support plate 1. When multiple heat exchange plates 4 are stacked together, the first rod portion 111 respectively contacts the multiple heat exchange plates 4, so that the first rod portion 111 can limit the heat exchange plates 4 to reduce the possibility of the heat exchange plates 4 shifting.

[0048] The threaded portion 113 is located between the first rod portion 111 and the second rod portion 112, and a nut 114 is slidably mounted on the second rod portion 112. In this embodiment, the mounting base 3 is provided with a vertical plate 32, to which the end of the second rod portion 112 away from the threaded portion 113 is fixedly connected, thereby reducing the possibility of the second rod portion 112 shaking. In other embodiments, the vertical plate 32 may not be provided.

[0049] The movable support plate 2 is provided with connecting holes 21, and the number of the connecting holes 21 is equal to the number of the connecting rods 11 and is arranged one-to-one, and the second rod portion 112 is slidably inserted into the connecting hole 21 and fits against the inner wall of the connecting hole 21, so that the second rod portion 112 is used to guide the movable support plate 2 to reduce the possibility of deviation of the movable support plate 2 during movement.

[0050] To secure the position of the movable support plate 2 with the fixed support plate 1, first move the movable support plate 2 to the desired position. At this point, the multiple heat exchange plates 4 are stacked together, and the end of the threaded portion 113 away from the first rod portion 111 passes through the connection hole 21. Nuts 114 are then threadedly connected to the threaded portion 113, causing the nut 114 to contact the movable support plate 2, thereby facilitating the securement of the movable support plate 2 with the fixed support plate 1.

[0051] When the movable support plate 2 needs to be moved away from the fixed support plate 1, the nut 114 is first moved onto the second rod portion 112 so that the nut 114 no longer limits the movable support plate 2. At this time, the movable support plate 2 can move away from the fixed support plate 1.

[0052] Reference Figure 1 The connecting assembly 5 includes a plurality of slides 51 and hinges 52 disposed between adjacent slides 51. The number of slides 51 is equal to the number of heat exchange plates 4 and is disposed in a one-to-one correspondence. Each of the slides 51 is located between the fixed support plate 1 and the movable support plate 2 and is slidably disposed on the slide rails 31. In this embodiment, the slides 51 closest to the movable support plate 2 are fixedly connected to the movable support plate 2.

[0053] In other embodiments, the mounting base 3 and the slide rail 31 may not be provided, and pulleys may be provided at the bottom of the slide 51 and the movable support plate 2 respectively, so that the movable support plate 2 and the slide 51 can slide on the ground.

[0054] Reference Figure 2 and Figure 3 A plug-in slot 511 is provided on the slide 51, and a plug-in block 41 is fixedly connected to the heat exchange plate 4. The plug-in block 41 is inserted into the plug-in slot 511, so that the heat exchange plate 4 can be easily fixed to the slide 51, thereby making it convenient to use the slide 51 to move the heat exchange plate 4, and on the other hand, to separate the heat exchange plate 4 from the slide 51 so as to replace or repair the heat exchange plate 4.

[0055] Reference Figure 4 The plurality of hinged members 52 are divided into two groups, one on each side of the slide 51 and arranged in an alternating pattern. The hinged members 52 include a first hinge rod 521 and a second hinge rod 522. One of two adjacent slides 51 is hinged to the first hinge rod 521, while the other slide 51 is hinged to the second hinge rod 522. The end of the first hinge rod 521 away from the slide 51 is hinged to the end of the second hinge rod 522 away from the slide 51.

[0056] Reference Figure 4 and Figure 5When the movable support plate 2 moves away from the fixed support plate 1, the movable support plate 2 can drive the slide 51 to move, and the slide 51 can drive the first hinge rod 521 to move, so that the first hinge rod 521 drives the second hinge rod 522 to rotate relative to each other. During this process, the distance between two adjacent slides 51 increases, thereby increasing the distance between two adjacent heat exchange plates 4, thereby facilitating the replacement or maintenance of the heat exchange plates 4. After the first hinge rod 521 and the second hinge rod 522 rotate to a designated position, the first hinge rod 521 can drive the slide 51 to move via the second hinge rod 522, thereby facilitating the movement of multiple slides 51, thereby utilizing the slides 51 to drive multiple heat exchange plates 4 to a designated position.

[0057] Reference Figure 1 and Figure 2 A guide rod 12 is fixedly connected to the fixed support plate 1. The guide rod 12 is located between the fixed support plate 1 and the movable support plate 2 and is arranged parallel to the slide rail 31. A slide groove 42 is formed on the end of the heat exchange plate 4 away from the plug-in block 41. The shape of the slide groove 42 is adapted to the design of the guide rod 12, so that the guide rod 12 can be inserted into the slide groove 42 and fit against the inner wall of the slide groove 42.

[0058] Reference Figure 1 and Figure 2 When the heat exchange plate 4 is located between the guide rod 12 and the slide 51, the guide rod 12 is inserted into the slide groove 42, and the plug-in block 41 (refer to Figure 3 ) is inserted into the insertion slot 511 (refer to Figure 3 ) so that the guide rod 12 and the slide 51 cooperate with each other to limit the heat exchange plate 4 to reduce the possibility of the heat exchange plate 4 being offset, thereby facilitating the slide 51 to stably drive the heat exchange plate 4 to move.

[0059] Reference Figure 2 and Figure 5 When the movable support plate 2 moves away from the fixed support plate 1 to a specified position, the movable support plate 2 is spaced apart from the guide rod 12, so that a clearance groove 22 is formed between the movable support plate 2 and the guide rod 12. At this time, the slide 51 drives the heat exchange plate 4 to move to the clearance groove 22, so that the guide rod 12 is pulled out of the slide groove 42, so that the guide rod 12 no longer limits the heat exchange plate 4, thereby facilitating the insertion of the plug-in block 41 (refer to Figure 3 ) Pull out the insertion slot 511 (refer to Figure 3 ), so as to remove the heat exchange plate 4 from the slide 51.

[0060] It should be noted that, in the embodiment of the present application, the slide 51 closest to the fixed support plate 1 can also be moved to the clearance groove 22 , so that the multiple heat exchange plates 4 can be separated from the slide 51 at the clearance groove 22 .

[0061] Reference Figure 1 and Figure 6 When the slide 51 drives the heat exchange plate 4 to move to the specified position, so that multiple heat exchange plates 4 are stacked together, a widened channel 43 is formed between adjacent heat exchange plates 4 for the medium to flow, and when the medium flows in the widened channel 43, the particulate matter carried in the medium can pass through the heat exchange plate 4, which is conducive to reducing the risk of blockage.

[0062] A protrusion 44 is fixedly connected to one side of the heat exchange plate 4, and a groove 45 is formed on the other side of the heat exchange plate 4. In this embodiment, the protrusion 44 and the groove 45 are arranged correspondingly, and both the protrusion 44 and the groove 45 are located within the widened channel 43, thereby increasing the contact area between the heat exchange plate 4 and the medium to a certain extent, thereby facilitating improved heat exchange efficiency of the heat exchanger.

[0063] Four connecting pipes 13 are installed on the side of the fixed supporting plate 1 facing away from the movable supporting plate 2 . The four connecting pipes 13 are respectively connected to different widening channels 43 , and the connecting pipes 13 are used to transport the medium.

[0064] It should be noted that, in the embodiment of the present application, how the connecting pipe 13 is specifically connected to the widening channel 43 and how the medium is transported are conventional technical means for those skilled in the art, and therefore will not be described in detail in the embodiment of the present application.

[0065] The implementation principle of a wide-channel plate heat exchanger in an embodiment of the present application is as follows: when a damaged heat exchange plate 4 needs to be replaced, the movable support plate 2 is first moved away from the fixed support plate 1. The movable support plate 2 drives the slide 51 to move, and the slide 51 drives the adjacent slide 51 to move via the first hinge rod 521 and the second hinge rod 522. At this time, the distance between adjacent slides 51 increases, and the slide 51 drives the heat exchange plate 4 to move, thereby increasing the distance between adjacent heat exchange plates 4. During this process, a clearance groove 22 is formed between the movable support plate 2 and the guide rod 12. The slide 51 is then used to drive the damaged heat exchange plate 4 to move to the clearance groove 22, so that the heat exchange plate 4 can be removed from the slide 51, thereby facilitating the replacement of the heat exchange plate 4.

[0066] In the embodiment of the present application, through the mutual cooperation of the movable support plate 2, the slide 51, the first hinge rod 521 and the second hinge rod 522, the spacing between the multiple slides 51 can be adjusted, and the slide 51 can be used to adjust the spacing between the multiple heat exchange plates 4, thereby facilitating the replacement of any heat exchange plate 4 and reducing the difficulty of the work to a certain extent.

[0067] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A wide channel plate heat exchanger, characterized in that: include: Fixed support plate (1); A movable support plate (2) is arranged opposite to the fixed support plate (1), a connecting component (5) is provided on the movable support plate (2), and the connecting component (5) is located between the fixed support plate (1) and the movable support plate (2); A plurality of heat exchange plates (4) are arranged between the fixed support plate (1) and the movable support plate (2); the connecting assembly (5) is respectively connected to the plurality of heat exchange plates (4); when the movable support plate (2) moves, the connecting assembly (5) can drive the plurality of heat exchange plates (4) to move, and increase or decrease the spacing between adjacent heat exchange plates (4); The connecting assembly (5) includes a plurality of slides (51) and hinges (52) arranged between adjacent slides (51), the plurality of slides (51) are located between the fixed support plate (1) and the movable support plate (2), the heat exchange plate (4) corresponds to the slides (51) one by one and is detachably connected, and the slides (51) close to the movable support plate (2) among the plurality of slides (51) are connected to the movable support plate (2); The hinged member (52) includes a first hinged rod (521) and a second hinged rod (522), one of the two adjacent slides (51) is hinged to the first hinged rod (521), the other slide (51) is hinged to the second hinged rod (522), and one end of the first hinged rod (521) away from the slide (51) is hinged to one end of the second hinged rod (522) away from the slide (51); The sliding seat (51) is provided with a plug-in slot (511), the heat exchange plate (4) is provided with a plug-in block (41), and the plug-in block (41) is inserted into the plug-in slot (511); A guide rod (12) is provided on the fixed support plate (1), and the guide rod (12) is located between the fixed support plate (1) and the movable support plate (2). A slide groove (42) is provided at one end of the heat exchange plate (4) away from the plug-in block (41), and the guide rod (12) is inserted into the slide groove (42). A clearance groove (22) can be formed between the guide rod (12) and the movable support plate (2). When the heat exchange plate (4) is located at the clearance groove (22), the guide rod (12) is separated from the slide groove (42).

2. The wide-channel plate heat exchanger according to claim 1, characterized in that: It comprises a mounting seat (3), a slide rail (31) is provided on the mounting seat (3), the fixed support plate (1) is provided on the mounting seat (3), and the movable support plate (2) and the slide seat (51) are respectively slidably provided on the slide rail (31).

3. The wide-channel plate heat exchanger according to claim 1, characterized in that: A connecting rod (11) is provided on the fixed support plate (1), a connecting hole (21) is provided on the movable support plate (2), and the connecting rod (11) is slidably inserted into the connecting hole (21).

4. The wide-channel plate heat exchanger according to claim 3, characterized in that: The connecting rod (11) includes a first rod portion (111), a second rod portion (112) and a threaded portion (113) which are coaxially connected. The first rod portion (111) is arranged on the fixed support plate (1). The threaded portion (113) is located between the first rod portion (111) and the second rod portion (112). A nut (114) is slidably provided on the second rod portion (112). The second rod portion (112) is slidably inserted into the connecting hole (21). When one end of the threaded portion (113) away from the first rod portion (111) passes through the connecting hole (21), the nut (114) can be threadedly connected to the threaded portion (113) and abut against the movable support plate (2).

5. The wide-channel plate heat exchanger according to claim 1, characterized in that: A widening channel (43) is formed between adjacent heat exchange plates (4).

6. The wide-channel plate heat exchanger according to claim 5, characterized in that: A protrusion (44) is provided on one side of the heat exchange plate (4), and a groove (45) is formed on the other side of the heat exchange plate (4), and both the protrusion (44) and the groove (45) are located in the widening channel (43).

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