Plate heat exchanger

Abstract

The utility model provides a plate heat exchanger which comprises a front end plate, a supporting rod, a plate sheet, a transverse rod, a first limiting rod, an elastic check block, a second limiting rod, a limiting column and a spraying mechanism. The plate sheet and the rear end plate are sleeved with the cross rod, when cleaning is needed, the plate sheet and the rear end plate only need to be unfolded by a certain distance in the direction of the cross rod, then the first limiting rod and the second limiting rod are rotated, the plate sheet and the rear end plate are limited, and then the spraying mechanism can be started for cleaning; therefore, the problem that the whole plate heat exchanger needs to be disassembled, and then the plates need to be cleaned one by one is solved, and the whole cleaning process becomes more concise.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a plate heat exchanger. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger made of a series of metal sheets with certain corrugated shapes; thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange.

[0003] Since the plate heat exchanger is composed of multiple plates, when cleaning the plates, it is generally necessary to disassemble the entire plate heat exchanger and then clean the plates one by one. The entire cleaning process is relatively cumbersome. Utility Model Content

[0004] The purpose of the utility model is to design a plate heat exchanger to solve the problems raised by the background technology. To achieve the above purpose, the utility model provides the following technical solutions: including a support rod fixed with a front end plate, a cross bar fixed to the support rod and penetrating the plate, a first limit rod rotatably connected to the support rod, a plurality of elastic stoppers fixed to the first limit rod, a second limit rod rotatably connected to the support rod, a plurality of limit columns fixed to the second limit rod and a spray mechanism installed on the top of the support rod, each of the plate and the rear end plate is located between the limit column and the elastic stopper, and the plate and the rear end plate are both slidably connected to the cross bar.

[0005] Furthermore, a connecting rod is provided on the support rod, and the connecting rod is rotatably connected to the first limiting rod and the second limiting rod. A positioning hole is provided on the connecting rod, and bosses are provided at the ends of the first limiting rod and the second limiting rod. A limiting hole aligned with the positioning hole is provided on the boss, and a limiting pin passes through the positioning hole and the limiting hole at the same time.

[0006] Furthermore, a handle is provided on the boss.

[0007] Furthermore, the elastic stop block includes a connecting block fixedly connected to the first limiting rod, the connecting block is rotatably connected to a rotating block on the side away from the front end plate, the rotating block is provided with an L-shaped groove, the L-shaped groove is tightly attached to the end of the connecting block, the rotating block and the connecting block are provided with corresponding notches, and the notch is provided with a spring for connecting the rotating block and the connecting block.

[0008] Furthermore, a rounded corner is provided on one side of the rotating block close to the front end plate.

[0009] Furthermore, the spray mechanism includes a support plate fixedly connected to the support rod, a screw rod rotatably connected to the support plate, a screw rod nut seat threadedly connected to the screw rod, a spray pipe fixedly connected to the bottom of the screw rod nut seat and a plurality of spray heads fixedly connected to the spray pipe, the spray pipe is connected to the water supply system in turn through a hose and a water pump, and the end of the screw rod is connected to the output end of the motor fixed to the support plate.

[0010] Furthermore, a guide rod is fixedly connected to the support plate, and the guide rod is clearance-matched with the screw nut seat.

[0011] Furthermore, a water retaining plate is provided on the top of the support plate, and retractable water retaining curtains are provided on both sides of the water retaining plate.

[0012] Furthermore, two spray pipes are provided, and the spray head on each spray pipe is arranged obliquely, and the spray head is aligned with the lower edge of the plate.

[0013] Furthermore, adjacent nozzles are arranged crosswise.

[0014] Furthermore, the support rod is located inside the water storage tank, a drainage pipe is provided on the water storage tank, and the drainage pipe is connected to a sewage treatment mechanism.

[0015] Furthermore, the plate, the front end plate and the rear end plate are provided with clamping grooves for assembly, and the locking mechanism clamps the plate, the front end plate and the rear end plate together through the clamping grooves.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model inserts the plate and the rear end plate into the cross bar. When cleaning is needed, the plate and the rear end plate only need to be spread out a certain distance along the direction of the cross bar, and then the first limit rod and the second limit rod are rotated to limit the plate and the rear end plate, and then the spray mechanism can be turned on for cleaning; thereby eliminating the need to disassemble the entire plate heat exchanger and then clean the plates one by one, making the entire cleaning process simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure after the single-side water retaining curtain is hidden;

[0021] Figure 3 It is a partial cross-sectional schematic diagram of the utility model;

[0022] Figure 4 It is another partial cross-sectional schematic diagram of the utility model.

[0023] Among them: 1. support rod; 2. water storage tank; 3. cross bar; 4. spray mechanism; 41. motor; 42. support plate; 43. screw nut seat; 44. screw; 45. guide rod; 46. spray pipe; 47. nozzle; 5. hose; 6. water retaining plate; 7. water retaining curtain; 8. elastic stopper; 81. rotating block; 82. notch; 83. spring; 84. connecting block; 9. front end plate; 10. plate; 11. rear end plate; 12. limit column; 13. second limit rod; 14. first limit rod; 15. connecting rod; 16. limit pin; 17. handle; 18. boss. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0025] Example: Please refer to Figure 1-4A plate heat exchanger comprises a support rod 1 fixed with a front end plate 9, a cross bar 3 fixed to the support rod 1 and penetrating a plate 10, a first limit rod 14 rotatably connected to the support rod 1, a plurality of elastic stoppers 8 fixed to the first limit rod 14, a second limit rod 13 rotatably connected to the support rod 1, a plurality of limit columns 12 fixed to the second limit rod 13, and a spray mechanism 4 installed on the top of the support rod 1, each plate 10 and rear end plate 11 are located between the limit columns 12 and the elastic stoppers 8, and the plate 10 and the rear end plate 11 are slidably connected to the cross bar 3, wherein the plate 10, the front end plate 9 and the rear end plate 11 are provided with clamping grooves for assembly, and the locking mechanism clamps the plate 10, the front end plate 9 and The rear end plate 11 is clamped together, and the locking mechanism can be implemented by bolt and nut locking. When the plate heat exchanger needs to be cleaned, it is only necessary to remove the locking bolts, and then unfold the rear end plate 11 and multiple plates 10 in turn along the direction of the cross bar 3, and keep a certain distance between them, and then rotate the first limit rod 14 and the second limit rod 13 to make the rear end plate 11 and each plate 10 located between the limit column 12 and the elastic stop block 8. Then the spray mechanism 4 is started, and the multiple plates 10, the front end plate 9 and the rear end plate 11 can be directly cleaned, thereby eliminating the need to disassemble the entire plate heat exchanger and then clean the plates 10 one by one, making the entire cleaning process simpler.

[0026] In this embodiment, a connecting rod 15 is provided on the support rod 1, and the connecting rod 15 is rotatably connected with the first limiting rod 14 and the second limiting rod 13. A positioning hole is provided on the connecting rod 15, and the ends of the first limiting rod 14 and the second limiting rod 13 are provided with a boss 18, and the boss 18 is provided with a limiting hole aligned with the positioning hole. The limiting pin 16 passes through the positioning hole and the limiting hole at the same time, thereby ensuring the stability of the plate 10 during cleaning, and the boss 18 is provided with a handle 17 to facilitate the rotation of the first limiting rod 14 and the second limiting rod 13; and the elastic stopper 8 includes a connecting block 84 fixedly connected to the first limiting rod 14, and the side of the connecting block 84 facing away from the front end plate 9 is rotatably connected with a rotating block 81, and the rotating block 81 is provided with an L-shaped groove, and the L-shaped groove is connected to the connecting block 84. The end of the connecting block 84 is tightly attached, and the rotating block 81 and the connecting block 84 are provided with a notch 82 corresponding to each other, and the notch 82 is provided with a spring 83 for connecting the rotating block 81 and the connecting block 84. When cleaning, first turn the handle 17 to align the positioning hole and the limiting hole, and then insert the limiting pin 16 into the positioning hole and the limiting hole at the same time, thereby limiting the rotation of the first limiting rod 14, and then remove the bolt, and then push the plate 10 and the rear end plate 11 in the direction away from the front end plate 9. During the pushing process, the rotating block 81 will rotate, and then reset under the action of the spring 83, which will not limit the movement of the plate 10 and the rear end plate 11 in the direction away from the front end plate 9, thereby playing a role of rapid positioning, so that the plate 10 and the rear end plate 1 1 quickly reaches a straight distance, thereby improving the cleaning efficiency; and a rounded corner is provided on one side of the rotating block 81 close to the front end plate 9 to prevent the rotating block 81 from scratching the plate 10 and the rear end plate 11, and the material of the rotating block 81 can be plastic, which further prevents the rotating block 81 from scratching the plate 10 and the rear end plate 11; and the spray mechanism 4 includes a support plate 42 fixedly connected to the support rod 1, a screw rod 44 rotatably connected to the support plate 42, a screw rod nut seat 43 threadedly connected to the screw rod 44, a spray pipe 46 fixedly connected to the bottom of the screw rod nut seat 43 and a plurality of spray heads 47 fixedly connected to the spray pipe 46, the spray pipe 46 is connected to the water supply system through the hose 5 and the water pump in turn, and the end of the screw rod 44 is fixed to the support rod 1. The output end of the motor 41 on the plate 42 is connected, so as to realize the cleaning of the plate 10, the front end plate 9 and the rear end plate 11; the support plate 42 is fixedly connected with a guide rod 45, and the guide rod 45 is in clearance with the screw nut seat 43, so as to ensure the smooth movement of the screw nut seat 43; the top of the support plate 42 is provided with a water baffle 6, and the two sides of the water baffle 6 are provided with a retractable water baffle curtain 7 to prevent the spray water from splashing, and there are two spray pipes 46, and the nozzle 47 on each spray pipe 46 is arranged obliquely, and the nozzle 47 is aimed at the lower edge of the plate 10, so as to effectively clean the plate 10, the front end plate 9 and the rear end plate 11, and improve the cleaning quality. The adjacent nozzles 47 are arranged crosswise to prevent the water columns of the spray water from colliding;The support rod 1 is located inside the water storage tank 2, and a drainage pipe is provided on the water storage tank 2. The drainage pipe is connected to the sewage treatment mechanism, which is conducive to the recycling of water. The sewage treatment mechanism adopts a common sewage treatment mechanism, such as sedimentation, filtration adsorption, etc., which will not be described in detail here. ;

[0027] How it works

[0028] When the plate heat exchanger needs to be cleaned, first turn the handle 17 to align the positioning hole and the limiting hole, then insert the limiting pin 16 into the positioning hole and the limiting hole at the same time to limit the rotation of the first limiting rod 14, then remove the bolts, push the plate 10 and the rear plate 11 in the direction away from the front plate 9, during the pushing process, the rotating block 81 will rotate, and then reset under the action of the spring 83, when the multiple plates 10 keep a certain distance along the direction of the cross bar 3, turn the second limiting rod 13, and then insert the limiting pin 16 into the positioning hole and the limiting hole. After alignment, the positioning holes and the limiting holes are aligned, thereby limiting the rotation of the first limiting rod 14. At this time, the rear end plate 11 and each plate 10 are located between the limiting column 12 and the elastic stop block 8. Subsequently, the water pump and the motor 41 are started, and while the water flows out from the nozzle 47, the screw nut seat 43 moves, thereby realizing the cleaning of multiple plates 10, the front end plate 9 and the rear end plate 11. This eliminates the need to disassemble the entire plate heat exchanger and then clean the plates 10 one by one, making the entire cleaning process simpler.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used herein are for illustrative purposes only.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A plate heat exchanger, characterized in that: It comprises a support rod (1) fixed with a front end plate (9), a cross rod (3) fixedly connected to the support rod (1) and penetrating a plate (10), a first limit rod (14) rotatably connected to the support rod (1), a plurality of elastic stoppers (8) fixedly connected to the first limit rod (14), a second limit rod (13) rotatably connected to the support rod (1), a plurality of limit columns (12) fixedly connected to the second limit rod (13), and a spray mechanism (4) installed on the top of the support rod (1), wherein each of the plate (10) and the rear end plate (11) is located between the limit column (12) and the elastic stopper (8), and the plate (10) and the rear end plate (11) are both slidably connected to the cross rod (3).

2. The plate heat exchanger according to claim 1, characterized in that: The support rod (1) is provided with a connecting rod (15), and the connecting rod (15) is rotatably connected to the first limiting rod (14) and the second limiting rod (13). A positioning hole is provided on the connecting rod (15), and bosses (18) are provided at the ends of the first limiting rod (14) and the second limiting rod (13). A limiting hole aligned with the positioning hole is provided on the boss (18), and a limiting pin (16) passes through the positioning hole and the limiting hole at the same time.

3. The plate heat exchanger according to claim 2, characterized in that: A handle (17) is provided on the boss (18).

4. The plate heat exchanger according to claim 1, characterized in that: The elastic stopper (8) comprises a connecting block (84) fixedly connected to the first limiting rod (14); the connecting block (84) is rotatably connected to a rotating block (81) on a side away from the front end plate (9); an L-shaped groove is provided on the rotating block (81); the L-shaped groove is tightly attached to the end of the connecting block (84); the rotating block (81) and the connecting block (84) are provided with corresponding notches (82); a spring (83) for connecting the rotating block (81) and the connecting block (84) is provided in the notch (82).

5. The plate heat exchanger according to claim 4, characterized in that: A rounded corner is provided on one side of the rotating block (81) close to the front end plate (9).

6. The plate heat exchanger according to claim 1, characterized in that: The spray mechanism (4) comprises a support plate (42) fixedly connected to the support rod (1), a screw rod (44) rotatably connected to the support plate (42), a screw rod nut seat (43) threadedly connected to the screw rod (44), a spray pipe (46) fixedly connected to the bottom of the screw rod nut seat (43), and a plurality of spray heads (47) fixedly connected to the spray pipe (46); the spray pipe (46) is connected to a water supply system via a hose (5) and a water pump in sequence; and the end of the screw rod (44) is connected to an output end of a motor (41) fixedly connected to the support plate (42).

7. The plate heat exchanger according to claim 6, characterized in that: A water retaining plate (6) is provided on the top of the support plate (42), and retractable water retaining curtains (7) are provided on both sides of the water retaining plate (6).

8. The plate heat exchanger according to claim 6, characterized in that: Two spray pipes (46) are provided, and the spray head (47) on each spray pipe (46) is arranged obliquely, and the spray head (47) is aligned with the lower edge of the plate (10).

9. The plate heat exchanger according to claim 8, characterized in that: Adjacent nozzles (47) are arranged crosswise.

10. The plate heat exchanger according to claim 1, characterized in that: The support rod (1) is located inside the water storage tank (2), and a drainage pipe is provided on the water storage tank (2), and the drainage pipe is connected to a sewage treatment mechanism.

Images