Plate heat exchanger plate cleaning device

Abstract

The utility model relates to a plate cleaning device for a plate heat exchanger. The plate cleaning device is mainly characterized by being composed of a shell, a lower cleaning cavity, an upper cleaning cavity, a pressing device, a scrubbing device, a flushing device, an air drying device and a sewage draining hole. A lower cleaning cavity and an upper cleaning cavity which are symmetrically arranged up and down are arranged in the shell, and detergent pipes, brushes, clear water pipes and air boxes are symmetrically arranged up and down in the lower cleaning cavity and the upper cleaning cavity; a plurality of high-pressure nozzles are arranged on the detergent pipe and the clear water pipe; a plurality of air outlets are formed in the air box; and two pairs of flat belts are symmetrically arranged outside the lower cleaning cavity and the upper cleaning cavity up and down. When the plate heat exchanger plate is cleaned, the plate is placed at the inlet of the device, the flat belt clamps the plate to move forwards, washing agent spraying, plate scrubbing, plate cleaning and plate air drying are sequentially completed, the purpose of automatic cleaning and air drying of the plate is achieved, and the problems that manual cleaning is low in efficiency, labor and time are wasted, and the cleaning effect is poor are solved.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchanger cleaning technology, and in particular to a plate heat exchanger plate cleaning device. Background Technology

[0002] Plate heat exchangers are a new type of high-efficiency heat exchanger composed of a series of metal plates with a specific corrugated shape. They feature high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, wide application, and long service life. However, as heat exchangers are used over time, scale or blockages can occur in the flow channels of the plates. Traditional cleaning methods involve removing the blocked plates and manually spraying detergent, rinsing, and wiping them. This method is time-consuming, labor-intensive, inefficient, and prolonged detergent retention can potentially cause plate corrosion.

[0003] Utility model patent application No. 202221415955.X discloses an easy-to-clean plate heat exchanger, including a left end plate, a right end plate, a nozzle, and a bidirectional lead screw. This device can achieve the purpose of cleaning the plates without manual cleaning. However, this device does not fix the plates during the cleaning process, and the plates will shake during high-pressure water rinsing, resulting in a decrease in the cleanliness of the plates and the existence of cleaning dead areas. Utility model patent application No. 202221059517.4 discloses a cleaning device for a plate heat exchanger, including two symmetrically arranged frames. The two frames are equipped with a cleaning device for cleaning the heat exchange plates and a blowing device for accelerating the drying speed of the heat exchange plates. However, this device only limits the plates through the two frames during operation, and the plates will also shake during the cleaning process, resulting in cleaning dead areas as well. Utility Model Content

[0004] This invention addresses the above-mentioned problems by proposing a plate heat exchanger plate cleaning device, which features high cleaning efficiency, thorough cleaning, and ease of use, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plate heat exchanger plate cleaning device, comprising a shell, a lower cleaning chamber, an upper cleaning chamber, a pressing device, a brushing device, a rinsing device, a drying device, and a drain hole; the pressing device specifically includes a belt drive motor, a dual-shaft output reducer, a V-belt pulley, a V-belt, a flat pulley, a flat belt, a belt drive shaft, and a pulley shaft bearing seat; the brushing device specifically includes a brush motor, a single-shaft output reducer, a sprocket, a chain, a brush, a brush rotation shaft, and a brush shaft bearing seat; the rinsing device specifically includes a high-pressure nozzle, a detergent pipe, a detergent inlet connector, a clean water pipe, and a clean water inlet connector; the drying device specifically includes an air outlet, a wind box, and an air inlet connector.

[0006] In the aforementioned clamping device, the outer casing is equipped with a belt drive motor and a dual-shaft output reducer. The dual-shaft output reducer is connected to the belt drive shaft via a V-belt and V-belt pulleys. Each belt drive shaft is mounted on the outer casing via a pulley shaft bearing seat. Each belt drive shaft is equipped with two flat pulleys, and flat belts are mounted on the flat pulleys. The two pairs of flat belts are arranged symmetrically in the vertical and horizontal directions.

[0007] In the aforementioned brushing device, a brush motor and a single-shaft output reducer are provided on the outer casing. The single-shaft output reducer is connected to the brush rotation shaft through a sprocket and a chain. Brushes are installed on the brush rotation shaft, and the brush rotation shaft is mounted on the outer casing through a brush shaft bearing seat. The two brushes are arranged symmetrically from top to bottom.

[0008] In the rinsing device, a detergent pipe, a detergent inlet pipe, a clean water pipe, and a clean water inlet pipe are respectively provided in the lower cleaning chamber and the upper cleaning chamber. The detergent pipe is connected to the detergent inlet pipe, and the clean water pipe is connected to the clean water inlet pipe. Several high-pressure nozzles are provided on the detergent pipe and the clean water pipe.

[0009] In the aforementioned air-drying device, a wind box and an air inlet pipe are respectively provided on the lower cleaning chamber and the upper cleaning chamber. The wind box is connected to the air inlet pipe, and the wind box is provided with a plurality of air outlets, which are respectively located in the lower cleaning chamber and the upper cleaning chamber.

[0010] Furthermore, the lower cleaning chamber and the upper cleaning chamber are chambers constructed inside the outer shell, and the lower cleaning chamber and the upper cleaning chamber are arranged symmetrically in the upper and lower parts.

[0011] Furthermore, the lower cleaning chamber includes side walls and a bottom surface. The two opposite side walls of the lower cleaning chamber are connected to the bottom surface by inclined surfaces, meaning the side walls and bottom surface are connected by inclined surfaces. The bottom surface has several drain holes. The lower cleaning chamber and the upper cleaning chamber are symmetrical in shape, therefore the two opposite side walls of the upper cleaning chamber are connected to the top surface by inclined surfaces. The bellows is connected to the bottom surface and inclined surfaces of the lower cleaning chamber, and the shape of the bellows is adapted to the bottom surface and inclined surfaces of the lower cleaning chamber. Therefore, the bellows has an inclined portion, and the air outlet of the inclined portion of the bellows is also inclined relative to the horizontal plane.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) By fixing the plate with flat straps arranged symmetrically up and down and left and right, the plate can be moved stably during the cleaning process; (2) By setting detergent pipe, brush, water pipe and air box structure, the functions of detergent spraying, plate brushing, plate cleaning and plate drying are realized, and the plate can be cleaned without dead angles; (3) By setting high pressure nozzle and air outlet with a certain tilt angle, the cleaning degree and drying efficiency of the plate are improved. Attached Figure Description

[0013] Figure 1 This is a first-view structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the pressing device and the scrubbing device of this utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from a second perspective;

[0016] Figure 4 This is a schematic diagram of an embodiment of the present invention.

[0017] In the diagram, 1. Outer shell, 2. Lower cleaning chamber, 3. Upper cleaning chamber, 4. Pressing device, 401. Belt drive motor, 402. Dual-shaft output reducer, 403. V-belt pulley, 404. V-belt, 405. Flat pulley, 406. Flat belt, 407. Belt drive shaft, 408. Belt pulley shaft bearing seat, 5. Brushing device, 501. Brush motor, 502. Single-shaft output reducer, 503. Sprocket, 504. Chain, 505. Brush, 506. Brush rotating shaft, 507. Brush shaft bearing seat, 6. Rinsing device, 601. High-pressure nozzle, 602. Detergent pipe, 603. Detergent inlet pipe, 604. Clean water pipe, 605. Clean water inlet pipe, 7. Drying device, 701. Air outlet, 702. Air box, 703. Air inlet pipe, 8. Drain hole, 9. Plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "front," "rear," "left," "right," "upper," and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Furthermore, in the description of this utility model, "a number" means two or more, unless otherwise explicitly specified.

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Reference Figure 1-4 A plate heat exchanger plate cleaning device mainly consists of an outer shell 1, a lower cleaning chamber 2, an upper cleaning chamber 3, a pressing device 4, a brushing device 5, a rinsing device 6, a drying device 7, and a drain hole 8.

[0022] Reference Figure 1 and Figure 2 The pressing device 4 specifically includes a belt drive motor 401, a dual-shaft output reducer 402, a V-belt pulley 403, a V-belt 404, a flat pulley 405, a flat belt 406, a belt drive shaft 407, and a pulley shaft bearing seat 408. The belt drive motor 401 and the dual-shaft output reducer 402 are provided on the upper left flat plate of the outer shell 1. The dual-shaft output reducer 402 is connected to the belt drive shaft 407 through the V-belt pulley 403 and the V-belt 404. Each belt drive shaft 407 is mounted on the outer shell 1 through the pulley shaft bearing seat 408. Each belt drive shaft 407 is equipped with two flat pulleys 405, and a flat belt 406 is mounted on the flat pulleys 405. The two pairs of flat belts 406 are arranged symmetrically up and down and left and right.

[0023] Reference Figure 1 and Figure 2 The brushing device 5 specifically includes a brush motor 501, a single-shaft output reducer 502, a sprocket 503, a chain 504, a brush 505, a brush rotating shaft 506, and a brush shaft bearing seat 507. The brush motor 501 and the single-shaft output reducer 502 are provided on the lower left flat plate of the outer casing 1. The single-shaft output reducer 502 is connected to the brush rotating shaft 506 through the sprocket 503 and the chain 504. The brush 505 is installed on the brush rotating shaft 506. The brush rotating shaft 506 is installed on the outer casing 1 through the brush shaft bearing seat 507. The two brushes 505 are arranged symmetrically from top to bottom.

[0024] Reference Figure 1 and Figure 3 The rinsing device 6 specifically includes a high-pressure nozzle 601, a detergent pipe 602, a detergent inlet pipe 603, a clean water pipe 604, and a clean water inlet pipe 605. The lower cleaning chamber 2 and the upper cleaning chamber 3 are respectively provided with a detergent pipe 602 and a detergent inlet pipe 603, as well as a clean water pipe 604 and a clean water inlet pipe 605. Several high-pressure nozzles 601 are provided on the detergent pipe 602 and the clean water pipe 604.

[0025] Reference Figure 1 and Figure 3The air-drying device 7 specifically includes an air outlet 701, an air box 702, and an air inlet pipe 703. An air box 702 and an air inlet pipe 703 are installed on both the lower cleaning chamber 2 and the upper cleaning chamber 3. The air box 702 has several air outlets 701. The lower cleaning chamber 2 includes side walls and a bottom surface. An inclined surface is provided at the connection between the two opposite side walls and the bottom surface of the lower cleaning chamber 2, meaning the side walls and bottom surface are connected by an inclined surface. Several drain holes 8 are provided on the bottom surface. The lower cleaning chamber 2 and the upper cleaning chamber 3 are symmetrical in shape, therefore, an inclined surface is provided at the connection between the two opposite side walls and the top surface of the upper cleaning chamber 3. The air box 702 is connected to the bottom surface and the inclined surface of the lower cleaning chamber 2, and the shape of the air box 702 is adapted to the bottom surface and the inclined surface of the lower cleaning chamber 2. Therefore, the air box 702 has an inclined portion, and the air outlets 701 on the inclined portion of the air box 702 are also inclined relative to the horizontal plane.

[0026] The working principle and usage process of this utility model are as follows: (1) Start-up: Start the belt drive motor 401, and the dual-shaft output reducer 402 drives the belt drive shaft 407 to rotate through the V-belt pulley 403 and the V-belt 404. The belt drive shaft 407 drives the flat pulley 405 to move the flat belt 406. Start the brush motor 501, and the single-shaft output reducer 502 drives the brush rotating shaft 506 and the brush 505 to rotate at high speed through the sprocket 503 and the chain 504. (2) Detergent spraying: Place the plate 9 at the inlet so that it contacts the front end of the flat belt 406. The plate 9 moves forward stably under the clamping force of the two pairs of flat belts 406. The detergent inlet pipe 603 sprays detergent into the detergent pipe 60. 2. Detergent is filled into the chamber, and the high-pressure nozzle 601 sprays the detergent onto the plate 9. The dirt on the surface of the plate 9 reacts chemically with the detergent. The detergent flows into the lower cleaning chamber 2 and carries away some of the dirt, thus playing the role of initially cleaning the plate 9. (3) Plate brushing: The high-speed rotating brush 505 brushes the surface of the plate 9. (4) Plate cleaning: Clean water is filled into the clean water pipe 604 through the clean water inlet pipe 605. The clean water is sprayed out through the high-pressure nozzle 601 to clean the dirt remaining on the surface of the plate 9. (5) Plate drying: Hot air is filled into the air box 702 through the air inlet pipe 703. The hot air is blown out through the air outlet 701 to quickly dry the plate 9 after cleaning.

Claims

1. A plate cleaning device for plate heat exchangers, characterized in that: The system includes a housing (1), a lower cleaning chamber (2), an upper cleaning chamber (3), a clamping device (4), a brushing device (5), a rinsing device (6), a drying device (7), and a drain hole (8). The clamping device (4) includes a belt drive motor (401), a dual-shaft output reducer (402), a V-belt pulley (403), a V-belt (404), a flat pulley (405), a flat belt (406), a belt drive shaft (407), and a pulley shaft bearing seat (408). The brushing device (5) specifically includes a brush motor (5... 01) Single-shaft output reducer (502), sprocket (503), chain (504), brush (505), brush rotating shaft (506), brush shaft bearing seat (507); The flushing device (6) specifically includes a high-pressure nozzle (601), detergent pipe (602), detergent inlet pipe (603), clean water pipe (604), and clean water inlet pipe (605); The drying device (7) specifically includes an air outlet (701), a bellows (702), and an air inlet pipe (703); In the clamping device (4), the outer shell (1) is equipped with a belt drive motor (401) and a dual-shaft output reducer (402). The dual-shaft output reducer (402) is connected to the belt drive shaft (407) through a V-belt pulley (403) and a V-belt (404). Each belt drive shaft (407) is mounted on the outer shell (1) through a pulley shaft bearing seat (408). Each belt drive shaft (407) is equipped with two flat pulleys (405). Flat belts (406) are mounted on the flat pulleys (405). The two pairs of flat belts (406) are arranged symmetrically up and down and left and right. In the brushing device (5), the outer shell (1) is provided with a brush motor (501) and a single-shaft output reducer (502). The single-shaft output reducer (502) is connected to the brush rotating shaft (506) through a sprocket (503) and a chain (504). A brush (505) is installed on the brush rotating shaft (506). The brush rotating shaft (506) is installed on the outer shell (1) through a brush shaft bearing seat (507). The two brushes (505) are arranged symmetrically up and down. In the rinsing device (6), a detergent pipe (602), a detergent inlet pipe (603), a clean water pipe (604), and a clean water inlet pipe (605) are respectively provided on the lower cleaning chamber (2) and the upper cleaning chamber (3). The detergent pipe (602) is connected to the detergent inlet pipe (603), and the clean water pipe (604) is connected to the clean water inlet pipe (605). Several high-pressure nozzles (601) are provided on the detergent pipe (602) and the clean water pipe (604). In the air drying device (7), a wind box (702) and an air inlet pipe (703) are provided in both the lower cleaning chamber (2) and the upper cleaning chamber (3). The wind box (702) is connected to the air inlet pipe (703). The wind box (702) is provided with a number of air outlets (701), and the number of air outlets (701) are located in the lower cleaning chamber (2) and the upper cleaning chamber (3) respectively.

2. The plate cleaning device for a plate heat exchanger according to claim 1, characterized in that: The lower cleaning chamber (2) and the upper cleaning chamber (3) are chambers constructed inside the outer shell (1), and the lower cleaning chamber (2) and the upper cleaning chamber (3) are arranged symmetrically in the upper and lower parts.

3. The plate cleaning device for a plate heat exchanger according to claim 1, characterized in that: The lower cleaning chamber (2) includes side walls and a bottom surface. The two opposite side walls of the lower cleaning chamber (2) are provided with inclined surfaces at the connection between them and the bottom surface. The bottom surface is provided with several drain holes (8).

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