Automatic cleaning device for plate heat exchanger

Abstract

The utility model provides an automatic cleaning device for a plate heat exchanger, which relates to the technical field of plate heat exchanger cleaning and comprises a front-back moving component, a mounting frame, a telescopic cylinder, a cleaning component, a rectangular frame, a support frame, a rotating shaft, a mounting plate, a placing frame, a limiting component, a chain transmission component and a material receiving table. The device does not need to manually hold a water gun to movably clean different areas of a plate heat exchanger plate, meanwhile, the plate can be automatically turned over after the upper surface of the plate is cleaned, the labor intensity of manual operation is reduced, meanwhile, a plurality of plates can be automatically cleaned at a time, the cleaning efficiency is improved, and the working efficiency is improved. The cleaning process for the plate heat exchanger plate is better.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger cleaning technology, and more specifically, to an automatic cleaning device for plate heat exchangers. Background Technology

[0002] A plate heat exchanger is a high-efficiency heat exchanger composed of a series of metal plates with a specific corrugated shape. Thin rectangular channels are formed between the plates, through which heat exchange occurs. Plate heat exchangers are ideal devices for liquid-liquid and liquid-vapor heat exchange. They feature high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, wide application, and long service life.

[0003] To ensure the heat exchange efficiency of plate heat exchangers, it is necessary to clean the surface of the heat exchanger plates regularly. In the past, manual handheld water guns were used to rinse the plates, which was time-consuming and laborious, and required constantly changing the rinsing area and manually turning the plates over. Therefore, the cleaning process for plate heat exchanger plates needs to be improved. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose an automatic cleaning device for plate heat exchangers.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An automatic cleaning device for plate heat exchangers includes a front-and-back moving assembly, a mounting frame, a telescopic cylinder, a cleaning assembly, a rectangular frame, a support frame, a rotating shaft, a mounting plate, a placement frame, a limiting assembly, a chain drive assembly, and a receiving platform.

[0007] The forward and backward moving components are laid on the ground, and mounting brackets are fixed on the forward and backward moving components;

[0008] The telescopic cylinder is fixed on the mounting bracket and connected to the cleaning assembly;

[0009] One side of the rectangular frame is fixed to the ground by a support frame;

[0010] Several rotating shafts are equidistant and rotatably connected within a rectangular frame;

[0011] The mounting plate is fixed on the rotating shaft and located inside the rectangular frame;

[0012] The placement frame is fixed to the mounting plate, and limit components are provided at the diagonal inside of the placement frame;

[0013] The chain drive assembly is located on the opposite side of the rectangular frame relative to the support frame, and the chain drive assembly is connected to several rotating shafts;

[0014] The receiving platform is fixed on the mounting frame and is lower than the rectangular frame.

[0015] Furthermore, the forward and backward movement component adopts a lead screw assembly.

[0016] Furthermore, the cleaning assembly includes a high-pressure pump, a main pipe, a cleaning channel, and several nozzles. The high-pressure pump is fixed on the mounting frame and connected to the main pipe via a hose. The main pipe is connected to a telescopic cylinder and is connected to a cleaning channel that corresponds to and is sized to the placement frame. Several nozzles are provided on the cleaning channel.

[0017] Furthermore, the limiting component includes a cylinder and a limiting plate. Each placement frame has a cylinder installed at its internal diagonal, and the cylinder is connected to a limiting plate with an L-shaped main body.

[0018] Furthermore, a rubber layer is provided on the limiting plate.

[0019] Furthermore, the placement frame, mounting plate, and receiving platform are all provided with several drainage holes, and the drainage holes on the mounting plate and the placement frame are connected.

[0020] Furthermore, the receiving platform is provided with several anti-slip pads that are staggered with the drainage holes.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] Compared to existing technologies, this device eliminates the need for manual water gun handling to move and clean different areas of the plate heat exchanger plates. After cleaning the upper surface of the plates, it can automatically flip the plates over, thus reducing the labor intensity of manual operation. Furthermore, it can automatically clean several plates at once, thereby improving cleaning efficiency and making it a better choice for cleaning plate heat exchanger plates. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the limit component installation.

[0025] Figure 3 This is a schematic diagram of the rubber layer installation;

[0026] Figure 4 This is a schematic diagram of the support frame installation;

[0027] Figure label:

[0028] 1. Forward and backward moving assembly; 2. Mounting frame; 3. Telescopic cylinder; 4. Rectangular frame; 5. Support frame; 6. Rotating shaft; 7. Mounting plate; 8. Placement frame; 9. Receiving platform; 10. High-pressure pump; 11. Main pipe; 12. Cleaning channel; 13. Nozzle; 14. Cylinder; 15. Limiting plate; 16. Rubber layer; 17. Drain hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0030] like Figures 1 to 4 As shown, an automatic cleaning device for plate heat exchangers includes a front-to-back moving assembly 1, a mounting frame 2, a telescopic cylinder 3, a cleaning assembly, a rectangular frame 4, a support frame 5, a rotating shaft 6, a mounting plate 7, a placement frame 8, a limiting assembly, a chain drive assembly, and a receiving platform 9.

[0031] The forward and backward moving component 1 is laid on the ground, and the mounting bracket 2 is fixed on the forward and backward moving component 1 (specifically, the forward and backward moving component 1 adopts a lead screw assembly, the lead screw assembly is existing technology and its principle will not be described).

[0032] The telescopic cylinder 3 is fixed on the mounting bracket 2 and connected to the cleaning assembly;

[0033] One side of the rectangular frame 4 is fixed to the ground by a support frame 5;

[0034] Several rotating shafts 6 are equidistant and rotatably connected within a rectangular frame 4;

[0035] Mounting plate 7 is fixed on rotating shaft 6 and located inside rectangular frame 4;

[0036] The placement frame 8 is fixed on the mounting plate 7, and limit components are provided diagonally inside the placement frame 8;

[0037] The chain drive assembly is located on the opposite side of the rectangular frame 4 relative to the support frame 5, and the chain drive assembly is connected to several rotating shafts 6;

[0038] The receiving platform 9 is fixed on the mounting frame 2, and the receiving platform 9 is lower than the rectangular frame 4.

[0039] Further refinements of the embodiments of this utility model, such as... Figure 1As shown, the cleaning assembly includes a high-pressure pump 10, a main pipe 11, a cleaning channel 12, and several nozzles 13. The high-pressure pump 10 is fixed on the mounting frame 2, and the output end of the high-pressure pump 10 is connected to the main pipe 11 through a hose. The main pipe 11 is connected to a telescopic cylinder 3, and the main pipe 11 is connected to a cleaning channel 12 that corresponds one-to-one with the placement frame 8 and is sized to fit the frame. Several nozzles 13 are provided on the cleaning channel 12. The input end of the high-pressure pump 10 is connected to a water tank, which is not shown in the figure.

[0040] To prevent the plates of the plate heat exchanger from prematurely detaching during the deflection process of the placement frame 8, a limiting component is installed, such as... Figure 2 As shown, the limiting component includes a cylinder 14 and a limiting plate 15. Each placement frame 8 has a cylinder 14 installed at its internal diagonal. The cylinder 14 is connected to the limiting plate 15, which has an L-shaped main body. Specifically, a waterproof cylinder can be used.

[0041] Meanwhile, to avoid wear caused by direct hard contact between the limiting components and the plates of the plate heat exchanger, the solution has been optimized, such as... Figure 3 As shown, a rubber layer 16 is provided on the limiting plate 15.

[0042] To reduce water accumulation on the placement frame 8, mounting plate 7, and receiving platform 9, the solution was optimized, such as... Figure 2 As shown, several drainage holes 17 are provided on the placement frame 8, the mounting plate 7, and the receiving platform 9, and the drainage holes on the mounting plate 7 and the placement frame 8 are connected.

[0043] To reduce the probability of plate heat exchanger plates shifting position when rinsing the lower surface of dirt on the receiving platform 9, the solution is further optimized by installing several anti-slip pads on the receiving platform 9, which are staggered with the drain holes 17. The anti-slip pads are not shown in the figure, and each anti-slip pad is in contact with a local area of ​​the plate, so as not to affect normal water leakage. At the same time, the anti-slip pads can buffer the plates when they fall onto the receiving platform 9.

[0044] It should be noted that the forward and backward moving assembly 1, the telescopic cylinder 3, the high-pressure pump 10, and the cylinder 14 are all electrically connected to the controller, which is not labeled in the figure.

[0045] The working process of this utility model is as follows:

[0046] First, the heat exchanger plates, after being soaked in the descaling agent, are placed in several placement frames 8, with one plate in each frame 8. The initial cleaning component is positioned above the rectangular frame 4, and the receiving platform 9 is positioned below the rectangular frame 4. After several plates are placed, the controller controls the telescopic cylinder 3 to operate, thereby driving several nozzles 13 to approach the plates. When the nozzles 13 move a pre-set distance, the controller controls the high-pressure pump 10 to work, thereby supplying water to several cleaning channels 12. The layout of the cleaning channels 12 is adapted to the plate size of the plate heat exchanger, and then a comprehensive rinsing process can be carried out on the upper surface of the plates.

[0047] After the automatic cleaning of the upper surface of several plates is completed, the controller controls several sets of limiting components to confine the plates within the placement frame 8. Then, the controller controls the chain drive component to drive several rotating shafts 6 to rotate synchronously. When the chain drive component causes the placement frames 8 to be in a vertical downward position, it stops. Then, the limiting components release the plates, and the plates fall onto the receiving platform 9. Then, the controller controls the forward and backward moving component 1 to move the receiving platform 9 and the plates to a position away from the rectangular frame 4 so as not to obstruct the automatic cleaning of the lower surface of the subsequent plates (the length of the receiving platform 9 is greater than the length of the plates). It should be noted that the mounting frame 2 and the receiving platform 9 will not obstruct the support frame 5 during the movement.

[0048] After the automatic cleaning of the lower surfaces of several plates is completed, manual unloading can be performed. Then, the chain drive assembly and the forward and backward moving assembly 1 will operate again to make the placement frame 8 move back to the vertical upward position and the receiving platform 9 reset. Then, a new round of plate heat exchanger plate cleaning process can begin.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic cleaning device for plate heat exchangers, characterized in that, Includes a front and rear moving assembly (1), a mounting frame (2), a telescopic cylinder (3), a cleaning assembly, a rectangular frame (4), a support frame (5), a rotating shaft (6), a mounting plate (7), a placement frame (8), a limiting assembly, a chain drive assembly, and a receiving platform (9). The forward and backward moving component (1) is laid on the ground, and the forward and backward moving component (1) is fixed with a mounting bracket (2); The telescopic cylinder (3) is fixed on the mounting bracket (2) and connected to the cleaning assembly; One side of the rectangular frame (4) is fixed to the ground by a support frame (5); Several rotating shafts (6) are equidistant and rotatably connected within a rectangular frame (4); The mounting plate (7) is fixed on the rotating shaft (6) and located inside the rectangular frame (4); The placement frame (8) is fixed on the mounting plate (7), and limit components are provided diagonally inside the placement frame (8); The chain drive assembly is located on the opposite side of the rectangular frame (4) relative to the support frame (5), and the chain drive assembly is connected to several rotating shafts (6); The receiving platform (9) is fixed on the mounting frame (2), and the receiving platform (9) is lower than the rectangular frame (4).

2. The automatic cleaning device for plate heat exchangers according to claim 1, characterized in that, The forward and backward moving component (1) adopts a lead screw assembly.

3. An automatic cleaning device for plate heat exchangers according to claim 1, characterized in that, The cleaning assembly includes a high-pressure pump (10), a main pipe (11), a cleaning channel (12), and several nozzles (13). The high-pressure pump (10) is fixed on the mounting frame (2) and connected to the main pipe (11) through a hose. The main pipe (11) is connected to a telescopic cylinder (3) and the main pipe (11) is connected to a cleaning channel (12) that corresponds to and is sized to the placement frame (8). Several nozzles (13) are provided on the cleaning channel (12).

4. An automatic cleaning device for plate heat exchangers according to claim 1, characterized in that, The limiting component includes a cylinder (14) and a limiting plate (15). Each placement frame (8) has a cylinder (14) installed at the diagonal inside. The cylinder (14) is connected to a limiting plate (15) with an L-shaped main body.

5. An automatic cleaning device for plate heat exchangers according to claim 4, characterized in that, A rubber layer (16) is provided on the limiting plate (15).

6. An automatic cleaning device for plate heat exchangers according to claim 1, characterized in that, The placement frame (8), mounting plate (7) and receiving platform (9) are all provided with a number of drainage holes (17), and the drainage holes on the mounting plate (7) and the placement frame (8) are connected.

7. An automatic cleaning device for plate heat exchangers according to claim 6, characterized in that, The receiving platform (9) is provided with several anti-slip pads that are staggered with the drain holes (17).

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