On-line cleaning device for plate heat exchanger

Abstract

The utility model relates to the technical field of plate heat exchangers, in particular to an on-line cleaning device for a plate heat exchanger, which is characterized in that when the on-line cleaning device is used, a heat exchanger body is firstly placed at the top of a bottom plate, and then a hydraulic telescopic rod is started, so that the heat exchanger body is fixedly clamped by a clamping plate; heat exchanger bodies of different sizes can be conveniently fixed through arrangement of clamping plates, then a driving motor is started to drive a threaded rod to rotate, the heat exchanger bodies are moved into a cleaning box, then a water pump is started, water in a water storage tank is sprayed out of a high-pressure spray head through the water pump, and therefore the surfaces of the heat exchanger bodies are preliminarily cleaned; and then sewage generated after preliminary cleaning is discharged, cleaning liquid is injected into the whole cleaning box, a linear motor is started, a cleaning brush is attached to the surface of the heat exchanger body, then a motor is started, and the cleaning brush cleans the surface of the heat exchanger body.

Description

Technical Field

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

[0002] Plate heat exchangers are a new type of high-efficiency heat exchanger consisting of a series of metal plates with a certain corrugated shape stacked together. Thin rectangular channels are formed between the various plates, and heat exchange occurs through the plates. They have the characteristics of high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, wide application, and long service life.

[0003] A plate heat exchanger cleaning device is disclosed in patent publication number CN201520388071.3. This patent includes a plate heat exchanger, a main unit, a base, a lifting device, guide rails, cleaning plates, water spray nozzles, air blowers, a lifting device, a control panel, and rollers. The main unit is located behind the plate heat exchanger, the base is located below the main unit and connected via the lifting device, the guide rails are located on top of the main unit, the cleaning plates are located below the guide rails, the water spray nozzles and air blowers are located on the cleaning plates, the lifting device is located below the guide rails, the control panel is located on the base, and the rollers are located at the bottom of the base. This utility model has a reasonable structure and can automatically clean the plates of the plate heat exchanger, improving production efficiency. However, the following two problems still exist in this patent:

[0004] 1. This device cannot thoroughly clean the heat exchanger body, has low cleaning efficiency and poor cleaning effect, is not suitable for cleaning the heat exchange plates in various heat exchanger bodies, cannot effectively remove impurities on the heat exchanger body, and has poor performance.

[0005] 2. This device cannot clean the heat exchanger body with a brush, thus failing to achieve the effect of secondary cleaning. It is not convenient for cleaning heat exchanger bodies of different sizes and cannot quickly clean the heat exchanger body.

[0006] To address the above issues, it is necessary to design an online cleaning device for plate heat exchangers. Utility Model Content

[0007] The purpose of this invention is to provide an online cleaning device for plate heat exchangers to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an online cleaning device for plate heat exchangers, comprising a cleaning tank and a heat exchanger body. A water storage tank is installed on the side of the cleaning tank, and a water pump is installed on the top of the water storage tank. Threaded rods are installed on the middle of both sides of the inner cavity of the cleaning tank via bearings. A drive motor is installed at the top of the threaded rods on the top of the cleaning tank. A base plate is connected between the two threaded rods. Side plates are provided on both sides of the top of the base plate. Hydraulic telescopic rods are installed on the surface of the side plates. A clamping plate is connected to the output end of the hydraulic telescopic rods. The heat exchanger body is placed in the middle of the top of the base plate. Crossbeams are provided on both sides of the heat exchanger body. Linear motors are installed at both ends of the crossbeams. An installation plate is connected to the middle of the bottom of the crossbeams. Several equipment boxes are evenly installed on the surface of the installation plate. Several motors are evenly installed inside the equipment boxes, and cleaning brushes are connected to the output ends of the motors on the outer surface of the equipment boxes. Fixing plates are provided on both sides of the inner walls of the cleaning tank and on both sides of the heat exchanger body. Several high-pressure nozzles are evenly installed on the surface of the fixing plates. A drain pipe is provided at the bottom of the side of the cleaning tank.

[0009] Preferably, the high-pressure nozzle is inclined and faces the heat exchanger body, and the water pump is connected to the water storage tank and the high-pressure nozzle through water pipes.

[0010] Preferably, mounting frames are connected to both sides of the base plate, and the mounting frames are threadedly connected to the threaded rod.

[0011] Preferably, the surface of the clamping plate is covered with a protective rubber pad, and the clamping plate is in contact with the side of the heat exchanger body.

[0012] Preferably, linear slide rails are installed on both sides of the top of the cleaning tank, and the linear motor is connected to the linear slide rails.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the heat exchanger body is first placed on top of the base plate. Then, the hydraulic telescopic rod is activated to clamp the heat exchanger body with clamps. The clamps facilitate fixing heat exchanger bodies of different sizes. Next, the drive motor is activated to rotate the threaded rod, moving the heat exchanger body into the cleaning tank. Then, the water pump is activated, spraying water from the storage tank through high-pressure nozzles to perform preliminary cleaning of the heat exchanger body surface. The wastewater from the preliminary cleaning is then discharged. Cleaning liquid is then injected into the entire cleaning tank. The linear motor is activated to bring the cleaning brush into contact with the heat exchanger body surface. The motor is then activated again to clean the surface of the heat exchanger body with the cleaning brush. This achieves a thorough cleaning of the heat exchanger body, resulting in high cleaning efficiency and good cleaning effect. It is suitable for cleaning the heat exchange plates in various heat exchanger bodies, effectively removing impurities and providing excellent performance. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of the present invention.

[0015] In the diagram: 1. Cleaning tank; 2. Heat exchanger body; 3. Water storage tank; 4. Water pump; 5. Drive motor; 6. Mounting frame; 7. Base plate; 8. Side plate; 9. Hydraulic telescopic rod; 10. Crossbeam; 11. Mounting plate; 12. Equipment box; 13. Cleaning brush; 14. Fixing plate; 15. Linear slide rail; 16. Linear motor; 17. Drain pipe; 18. High-pressure nozzle; 19. Threaded rod; 20. Clamping plate. Detailed Implementation

[0016] 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.

[0017] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Please see Figure 1This utility model provides a technical solution: an online cleaning device for plate heat exchangers, including a cleaning tank 1 and a heat exchanger body 2. A water storage tank 3 is installed on the side of the cleaning tank 1, and a water pump 4 is installed on the top of the water storage tank 3. Threaded rods 19 are installed on the middle of both sides of the inner cavity of the cleaning tank 1 via bearings. A drive motor 5 is installed at the top of the threaded rods 19 on the top of the cleaning tank 1. A base plate 7 is connected between the two threaded rods 19. Side plates 8 are provided on both sides of the top of the base plate 7. Hydraulic telescopic rods 9 are installed on the surface of the side plates 8. A clamping plate 20 is connected to the output end of the hydraulic telescopic rods 9. A heat exchanger body 2 is placed there. Crossbeams 10 are set on both sides of the heat exchanger body 2. Linear motors 16 are installed at both ends of the crossbeams 10. A mounting plate 11 is connected to the middle of the bottom of the crossbeams 10. Several equipment boxes 12 are evenly installed on the surface of the mounting plate 11. Several motors are evenly installed inside the equipment boxes 12. The output end of the motor is connected to the outer surface of the equipment box 12 with a cleaning brush 13. Fixing plates 14 are set on both sides of the inner wall of the cleaning box 1 and on both sides of the heat exchanger body 2. Several high-pressure nozzles 18 are evenly installed on the surface of the fixing plates 14. A drain pipe 17 is set on the bottom side of the cleaning box 1.

[0020] Furthermore, the high-pressure nozzle 18 is inclined and faces the heat exchanger body 2, and the water pump 4 is connected to the water storage tank 3 and the high-pressure nozzle 18 respectively through water pipes.

[0021] Furthermore, mounting frames 6 are connected to both sides of the base plate 7, and the mounting frames 6 are threadedly connected to the threaded rod 19.

[0022] Furthermore, a protective rubber pad is laid on the surface of the clamping plate 20, and the clamping plate 20 is in contact with the side of the heat exchanger body 2.

[0023] Furthermore, linear slide rails 15 are installed on both sides of the top of the cleaning tank 1, and the linear motor 16 is connected to the linear slide rails 15.

[0024] In use, the heat exchanger body 2 is first placed on top of the base plate 7. Then, the hydraulic telescopic rod 9 is activated to clamp the heat exchanger body 2 with the clamping plate 20. The clamping plate 20 is designed to easily fix heat exchanger bodies 2 of different sizes. Then, the drive motor 5 is activated to rotate the threaded rod 19, moving the heat exchanger body 2 into the cleaning tank 1. Then, the water pump 4 is activated to spray water from the water storage tank 3 through the high-pressure nozzle, thus performing preliminary cleaning on the surface of the heat exchanger body 2. The wastewater from the preliminary cleaning is then discharged. The entire cleaning tank 1 is then filled with cleaning fluid. The linear motor 16 is activated to make the cleaning brush 13 adhere to the surface of the heat exchanger body 2. Then, the motor is activated again to make the cleaning brush 13 clean the surface of the heat exchanger body 2. This achieves a thorough cleaning of the heat exchanger body 2, with high cleaning efficiency and good cleaning effect. It is applicable to the cleaning of heat exchange plates in various heat exchanger bodies 2, effectively removing impurities from the heat exchanger body 2, and has good performance.

[0025] Although embodiments of the present invention have been shown and described, 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. An online cleaning device for plate heat exchangers, comprising a cleaning tank (1) and a heat exchanger body (2), characterized in that: A water storage tank (3) is installed on the side of the cleaning tank (1), and a water pump (4) is installed on the top of the water storage tank (3). Threaded rods (19) are installed on the middle of both sides of the inner cavity of the cleaning tank (1) via bearings. A drive motor (5) is installed at the top of the threaded rods (19) on the top of the cleaning tank (1). A base plate (7) is connected between the two threaded rods (19). Side plates (8) are provided on both sides of the top of the base plate (7). A hydraulic telescopic rod (9) is installed on the surface of the side plate (8). A clamping plate (20) is connected to the output end of the hydraulic telescopic rod (9). A heat exchanger body (2) is placed in the middle of the top of the base plate (7). A crossbeam (10) is provided on both sides. A linear motor (16) is installed at both ends of the crossbeam (10). A mounting plate (11) is connected to the middle of the bottom of the crossbeam (10). Several equipment boxes (12) are evenly installed on the surface of the mounting plate (11). Several motors are evenly installed inside the equipment box (12). A cleaning brush (13) is connected to the outer surface of the equipment box (12) at the output end of the motor. Fixing plates (14) are provided on both sides of the inner wall of the cleaning box (1) on both sides of the heat exchanger body (2). Several high-pressure nozzles (18) are evenly installed on the surface of the fixing plate (14). A drain pipe (17) is provided at the bottom of the side of the cleaning box (1).

2. The online cleaning device for plate heat exchangers according to claim 1, characterized in that: The high-pressure nozzle (18) is inclined and faces the heat exchanger body (2). The water pump (4) is connected to the water storage tank (3) and the high-pressure nozzle (18) through water pipes.

3. The online cleaning device for plate heat exchangers according to claim 1, characterized in that: The base plate (7) is connected to mounting frames (6) on both sides, and the mounting frames (6) are threadedly connected to the threaded rod (19).

4. The online cleaning device for plate heat exchangers according to claim 1, characterized in that: The surface of the clamping plate (20) is covered with a protective rubber pad, and the clamping plate (20) is in contact with the side of the heat exchanger body (2).

5. The online cleaning device for plate heat exchangers according to claim 1, characterized in that: The cleaning tank (1) is equipped with linear slide rails (15) on both sides of the top, and the linear motor (16) is connected to the linear slide rails (15).

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