Heat exchanger with plate type structure

Abstract

The utility model discloses a heat exchanger with a plate-type structure, which comprises a plate-type heat exchanger component, a fixed plate, a clamping movable plate, a rear support, an upper guide rod, a lower guide rod, a bolt rod and a heat exchange plate sheet, wherein the fixed plate, the clamping movable plate and the rear support are vertically parallel, the upper guide rod, the lower guide rod and the bolt rod are horizontally parallel, and the heat exchange plate sheet is arranged between the fixed plate and the clamping movable plate; the blocking frame comprises a blocking plate fixed to the upper guide rod and the lower guide rod through bolts, an attaching plate fixed to the clamping movable plate through bolts and a transmission piece installed between the blocking plate and the attaching plate, and the transmission piece comprises a fixing block perpendicular to the blocking plate, a bolt shaft penetrating through the fixing block and a rotating arm rotationally connected with the bolt shaft; through the designed blocking frame and the damping seat, under the synergistic effect of the blocking frame and the damping seat, the purpose of abutting against the clamping movable plate is achieved, the pre-tightening force of the clamping movable plate is further increased, a pressure sensor transmits a signal to an alarm lamp, the risk that the clamping movable plate and a heat exchange plate of the plate heat exchanger are loosened and leakage exists is reminded, and the plate heat exchanger has the reminding function.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, specifically relating to a plate-type heat exchanger. Background Technology

[0002] A heat exchanger is a heat exchange device, also known as a heat exchanger, whose function is to transfer part of the heat of a hot fluid to a cold fluid. There are many types of heat exchangers, one of which is the plate heat exchanger. The main structure of a plate heat exchanger includes heat exchange plates, a fixed plate, a movable clamping plate, a lower guide rod, an upper guide rod, a rear support, clamping bolts and nuts, etc. The heat exchange plates are installed between the fixed plate and the movable clamping plate. The clamping bolts and nuts clamp the fixed plate, the movable clamping plate, and the heat exchange plates in the center position. The authorized document with publication number CN222378863U discloses a plate heat exchanger. The plate heat exchanger is a heat exchange device whose structure, principle, and usage method are disclosed.

[0003] The heat exchange plates on a plate heat exchanger are clamped by clamping bolts and nuts. During long-term operation of the heat exchanger, it will be subjected to various forces, such as the impact force of the fluid and thermal stress. These forces will cause the bolts to have slight displacement and deformation. Over time, the bolts will gradually loosen. In addition, due to vibration, temperature changes and other reasons, the clamping bolts may also loosen, resulting in insufficient clamping force between the plates, which will lead to leakage. The plate heat exchanger does not have a design to hold the movable clamps and reinforce the heat exchange plates, which is a shortcoming.

[0004] Existing plate heat exchangers have the problem of not having a clamping design that holds the movable clamping plate in place to fix the heat exchange plates. To address this, this application proposes a heat exchanger with a plate structure. Utility Model Content

[0005] The purpose of this utility model is to provide a plate heat exchanger to solve the problem mentioned in the background art of the lack of a clamping design on the plate heat exchanger to fix the heat exchange plates.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plate-type heat exchanger, comprising...

[0007] A plate heat exchanger assembly includes a vertically parallel fixed plate and a clamping movable plate and a rear support, a horizontally parallel upper guide rod and a lower guide rod and a bolt rod, and heat exchange plates installed between the fixed plate and the clamping movable plate.

[0008] The blocking frame includes a blocking plate that is bolted to the upper guide rod and the lower guide rod, a bonding plate that is bolted to the clamping movable plate, and a transmission component installed between the blocking plate and the bonding plate. The transmission component includes a fixing block perpendicular to the blocking plate, a bolt shaft passing through the fixing block, and a rotating arm rotatably connected to the bolt shaft.

[0009] The damping seat includes a guide post for a vertical stop plate, a fixed plate for the vertical guide post, a movable plate sleeved on the outside of the guide post, and a compression spring, with one end of the rotating arm in contact with the surface of the movable plate.

[0010] Preferably, the rotating arm is in an inclined state, and the two ends of the rotating arm are lip a and lip b, respectively. The surface of the moving plate is in contact with lip a, and the contact plate is in contact with lip b.

[0011] Preferably, the movable plate is parallel to the fixed plate, the compression spring is installed between the fixed plate and the movable plate, and a pressure cylinder is welded to the center of the movable plate facing the fixed plate.

[0012] Preferably, a pressure sensor is fixed to the surface of the sturdy plate facing the pressure cylinder by screws.

[0013] Preferably, the top of the barrier plate has a top plate, and an alarm light electrically connected to the pressure sensor is fixed to the surface of the top plate by screws.

[0014] Preferably, the baffle plate is provided with symmetrically distributed support components, which include a fixed frame perpendicular to the baffle plate, a damping cylinder installed inside the fixed frame, a retaining screw penetrating the fixed frame and the damping cylinder, and a retaining round block fixed to the end of the retaining screw by bolts.

[0015] Preferably, the fixing frame is a frame structure, and the end of the fixing screw located inside the fixing frame is provided with a handwheel. The fixing screw is connected to the damping cylinder and the fixing frame by threaded engagement, and the distance between the side of the fixing block and the side of the bonding plate is the spacing H.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the designed blocking frame and damping seat work together to hold the clamping movable plate in place, thereby increasing the preload of the clamping movable plate.

[0018] 2. In this utility model, the pressure cylinder, pressure sensor, and alarm light are designed so that when the clamping movable plate becomes loose, the pressure cylinder presses down on the pressure sensor, and the pressure sensor transmits a signal to the alarm light, reminding that the clamping movable plate and heat exchange plates of the plate heat exchanger have become loose and there is a risk of leakage, thus providing an alert function. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the barrier plate of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of section A in the middle;

[0022] In the diagram: 2. Baffle plate; 3. Adhesive plate; 6. Support assembly; 7. Alarm light; 8. Pressure sensor; 11. Fixing plate; 12. Clamping movable plate; 13. Rear support; 14. Upper guide rod; 15. Lower guide rod; 16. Heat exchange plate; 17. Bolt rod; 21. Top plate; 41. Fixing block; 42. Bolt shaft; 43. Rotating arm; 51. Guide column; 52. Firm plate; 53. Compression spring; 54. Moving plate; 55. Pressure cylinder; 61. Fixing frame; 62. Damping cylinder; 63. Holding screw; 64. Holding round block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 3This utility model provides a technical solution: a plate heat exchanger, including a plate heat exchanger assembly, comprising a vertically parallel fixed plate 11, a clamping movable plate 12, and a rear support 13; horizontally parallel upper guide rods 14 and lower guide rods 15, and a bolt rod 17; and heat exchange plates 16 installed between the fixed plate 11 and the clamping movable plate 12. The structure, principle, and usage of the plate heat exchanger assembly are existing technologies and will not be described in detail in this application. A baffle frame includes a baffle plate 2 securely bolted to the upper guide rod 14 and lower guide rod 15; a mating plate 3 fixed to the clamping movable plate 12 by bolts; and a transmission component installed between the baffle plate 2 and the mating plate 3. The baffle frame is fixed to the upper guide rod 14 and lower guide rod 15, and abuts against the clamping movable plate 12 to prevent the clamping movable plate 12 from moving due to loosening of the nut on the bolt rod 17. The transmission component includes a fixing block 41 perpendicular to the baffle plate 2 and a through-fixing... The bolt shaft 42 of block 41 and the rotating arm 43 rotatably connected to the bolt shaft 42 have one end abutting against the fitting plate 3. The fitting plate 3 is tightly attached to the clamping movable plate 12. When the clamping movable plate 12 tends to loosen, that is, when it tends to move in the c direction, the rotating arm 43 generates a force to rotate along the bolt shaft 42. One end of the rotating arm 43 abuts against the moving plate 54 and moves in the d direction. The damping seat includes a guide post 51 of the vertical blocking plate 2, a fixing plate 52 of the vertical guide post 51, a moving plate 54 sleeved on the outside of the guide post 51, and a compression spring 53. One end of the rotating arm 43 is attached to the surface of the moving plate 54. The damping seat plays the role of blocking the movement of the rotating arm 43. The compression spring 53 is in a compressed state. When the rotating arm 43 drives the moving plate 54 to move, it is resisted by the compression spring 53, thus achieving the effect of preventing the rotating arm 43 from rotating, so that the rotating arm 43 and the fitting plate 3 abut against the clamping movable plate 12.

[0025] In this embodiment, the rotating arm 43 is in an inclined state, and the two ends of the rotating arm 43 are lip a and lip b, respectively. The surface of the moving plate 54 is in contact with lip a, and the contact plate 3 is in contact with lip b. When the rotating arm 43 tends to rotate, the rotating arm 43 will act on the moving plate 54.

[0026] In this embodiment, the movable plate 54 is parallel to the fixed plate 52. The compression spring 53 is installed between the fixed plate 52 and the movable plate 54. A pressure cylinder 55 is welded to the center of the movable plate 54 facing the fixed plate 52. A pressure sensor 8 is fixed to the surface of the fixed plate 52 facing the pressure cylinder 55 by screws. A top plate 21 is vertically mounted on the top of the blocking plate 2. An alarm light 7 electrically connected to the pressure sensor 8 is fixed to the surface of the top plate 21 by screws. When the clamping movable plate 12 loosens and acts on the rotating arm 43, the rotating arm 43 drives the movable plate 54 to move. The movable plate 54 squeezes the compression spring 53, and the pressure cylinder 55 presses down on the pressure sensor 8. After the pressure sensor 8 senses a pressure exceeding a predetermined value, it transmits a signal to the alarm light 7 to remind that the clamping movable plate 12 and the heat exchange plates 16 of the plate heat exchanger have become loose and there is a risk of leakage.

[0027] In this embodiment, the baffle plate 2 is provided with symmetrically distributed support components 6. The support components 6 include a fixed frame 61 perpendicular to the baffle plate 2, a damping cylinder 62 installed inside the fixed frame 61, a retaining screw 63 penetrating the fixed frame 61 and the damping cylinder 62, and a retaining block 64 fixed to the end of the retaining screw 63 by bolts. The retaining block 64 abuts against the clamping movable plate 12. The retaining screw 63 and the damping cylinder 62 are connected by threads. There is frictional resistance between the retaining screw 63 and the damping cylinder 62. The retaining screw 63 and the retaining block 64 can abut against the damping cylinder 12. The clamping movable plate 12 is clamped, and the fixed frame 61 has a frame structure. The end of the supporting screw 63 located inside the fixed frame 61 is equipped with a handwheel. The supporting screw 63 is connected to the damping cylinder 62 and the fixed frame 61 by threaded engagement. The distance between the side of the supporting block 64 and the side of the bonding plate 3 is the spacing H. When the spacing H is zero, the supporting block 64 is flush with the side of the bonding plate 3. The supporting block 64 presses against the clamping movable plate 12. The positions of the supporting screw 63 and the supporting block 64 can be changed, which facilitates disassembly and assembly within the gap between the blocking plate 2 and the clamping movable plate 12.

[0028] Working principle and usage process of this utility model:

[0029] When the plate heat exchanger is in use, the designed baffle plate 2 is fixed on the upper guide rod 14 and the lower guide rod 15, and the rotating arm 43 abuts against the clamping movable plate 12 to prevent the clamping movable plate 12 from moving due to the loosening of the nut on the bolt rod 17.

[0030] The damping seat serves to prevent the rotating arm 43 from moving. The compression spring 53 is in a compressed state. When the rotating arm 43 drives the moving plate 54 to move, it is resisted by the compression spring 53, thus achieving the effect of preventing the rotating arm 43 from rotating, so that the rotating arm 43 and the bonding plate 3 abut against the clamping movable plate 12.

[0031] With the combined action of the blocking frame and the damping seat, the clamping movable plate 12 is held in place, further increasing the preload of the clamping movable plate 12.

[0032] The retaining screw 63 is connected to the damping cylinder 62 and the fixing frame 61 by threaded engagement.

[0033] There is frictional resistance between the retaining screw 63 and the damping cylinder 62, and the retaining block 64 presses against the clamping movable plate 12 to increase the preload of the clamping movable plate 12;

[0034] When the clamping movable plate 12 loosens and acts on the rotating arm 43, the rotating arm 43 drives the moving plate 54 to move. The moving plate 54 squeezes the compression spring 53, and the pressure cylinder 55 presses the pressure sensor 8. After the pressure sensor 8 senses the pressure exceeding the predetermined value, it transmits a signal to the alarm light 7 to remind that the clamping movable plate 12 and the heat exchange plate 16 of the plate heat exchanger have become loose and there is a risk of leakage.

[0035] In summary, the plate heat exchanger of this application has a clamping design that abuts against the movable clamping plate to fix the heat exchange plates 16. With the synergistic action of the baffle and the damping seat, the movable clamping plate 12 is clamped, further increasing the pre-tightening force of the movable clamping plate 12. When the movable clamping plate 12 loosens, the pressure cylinder 55 presses against the pressure sensor 8. After the pressure sensor 8 senses the pressure exceeding the predetermined value, it transmits a signal to the alarm light 7 to remind that the movable clamping plate 12 and the heat exchange plates 16 of the plate heat exchanger have loosened and there is a risk of leakage, thus providing a warning function.

[0036] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plate-type heat exchanger, characterized in that: include The plate heat exchanger assembly includes a vertically parallel fixed plate (11), a clamping movable plate (12), and a rear support (13), a horizontally parallel upper guide rod (14), a lower guide rod (15), and a bolt rod (17), and heat exchange plates (16) installed between the fixed plate (11) and the clamping movable plate (12). The blocking frame includes a blocking plate (2) that is bolted to the upper guide rod (14) and the lower guide rod (15), a mating plate (3) that is bolted to the clamping movable plate (12), and a transmission component installed between the blocking plate (2) and the mating plate (3). The transmission component includes a fixing block (41) perpendicular to the blocking plate (2), a bolt shaft (42) passing through the fixing block (41), and a rotating arm (43) rotatably connected to the bolt shaft (42). The damping seat includes a guide post (51) of the vertical blocking plate (2), a sturdy plate (52) of the vertical guide post (51), a movable plate (54) sleeved on the outside of the guide post (51) and a compression spring (53), one end of the rotating arm (43) being in contact with the surface of the movable plate (54).

2. The plate heat exchanger according to claim 1, characterized in that: The rotating arm (43) is in an inclined state. The two ends of the rotating arm (43) are lip a and lip b, respectively. The surface of the moving plate (54) is in contact with lip a, and the bonding plate (3) is in contact with lip b.

3. A plate-type heat exchanger according to claim 1, characterized in that: The movable plate (54) is parallel to the fixed plate (52), and the compression spring (53) is installed between the fixed plate (52) and the movable plate (54). A pressure cylinder (55) is welded to the center of the movable plate (54) facing the fixed plate (52).

4. A plate-type heat exchanger according to claim 3, characterized in that: The surface of the sturdy plate (52) facing the pressure cylinder (55) is fixed with a pressure sensor (8) by screws.

5. A plate-type heat exchanger according to claim 4, characterized in that: The top of the baffle (2) has a top plate (21) vertically, and the surface of the top plate (21) is fixed with an alarm light (7) electrically connected to the pressure sensor (8) by screws.

6. A plate-type heat exchanger according to claim 1, characterized in that: The baffle plate (2) is provided with symmetrically distributed support components (6). The support components (6) include a fixed frame (61) perpendicular to the baffle plate (2), a damping cylinder (62) installed inside the fixed frame (61), a retaining screw (63) passing through the fixed frame (61) and the damping cylinder (62), and a retaining round block (64) fixed to the end of the retaining screw (63) by bolts.

7. A plate-type heat exchanger according to claim 6, characterized in that: The fixed frame (61) is a frame structure. The end of the supporting screw (63) located inside the fixed frame (61) is equipped with a handwheel. The supporting screw (63) is connected to the damping cylinder (62) and the fixed frame (61) by threaded engagement. The distance between the side of the supporting block (64) and the side of the bonding plate (3) is the spacing H.

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