Online cleaning device for heat exchanger

Abstract

The utility model relates to the technical field of heat exchanger cleaning, in particular to an online heat exchanger cleaning device which comprises a cleaning box and a heat exchange plate, openings are formed in the positions, close to the top, of the two ends of the cleaning box, two brackets are fixedly installed in the cleaning box, and two cleaning rollers are arranged between the two brackets. The two cleaning rollers are distributed up and down, a mounting plate is arranged in the cleaning box, a conveying belt is arranged on the surface of the mounting plate, and a cleaning pipe is arranged in the cleaning box. Through the arrangement of the cleaning box, the cleaning roller, the water spraying pipe and the conveying belt used for driving the heat exchange plate to move automatically, the heat exchange plate can be moved conveniently, the automation degree is high, online cleaning is achieved, excessive manual control is not needed, the cleaning time and speed can be controlled according to the dirt degree of the heat exchange plate, and the cleaning efficiency is improved. The practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger cleaning, in particular to an online cleaning device for a heat exchanger. Background Art

[0002] The plate heat exchanger is a high-efficiency heat exchanger composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. The plate heat exchanger is an ideal device for liquid-liquid and liquid-steam heat exchange. The plate heat exchanger is a detachable heat exchange device composed of many corrugated heat transfer plates, which are compressed by rubber gaskets at a certain interval. The four corner holes on the plate form the distribution pipes and drainage pipes of the fluid. The two heat exchange media flow into their respective flow channels, forming countercurrent or parallel flow through each plate for heat exchange.

[0003] After a heat exchanger has been used for a long time, scale will adhere to the heat exchange plates, so the heat exchange plates need to be cleaned. The traditional cleaning method is to disassemble them and rinse them with cleaning fluid and high-pressure water pump to achieve cleaning. However, this method is complicated to clean, the uniformity of manual cleaning is different, and the cleaning cannot be completed regularly, resulting in poor cleaning effect. Utility Model Content

[0004] The purpose of the utility model is to provide an online cleaning device for a heat exchanger, which solves the problem that in the prior art, the heat exchange plates are cleaned by disassembling them and flushing them with a cleaning liquid and a high-pressure water pump to achieve cleaning. However, this method is complicated to clean, the uniformity of manual cleaning varies, and the cleaning cannot be completed regularly, resulting in a poor cleaning effect.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heat exchanger online cleaning device comprises a cleaning box and a heat exchange plate, wherein both ends of the cleaning box are arranged near the top to be opened, two brackets are fixedly installed inside the cleaning box, two cleaning rollers are arranged between the two brackets, and the two cleaning rollers are distributed up and down, a mounting plate is arranged inside the cleaning box, a conveyor belt is arranged on the surface of the mounting plate, and a cleaning pipe is arranged inside the cleaning box.

[0007] Preferably, a rotating shaft is provided on the surface of the two cleaning rollers, gears are fixedly installed on the surface of the two rotating shafts, the two gears are meshed, a first motor is fixedly installed on the side wall of the cleaning box, and the output shaft port of the first motor is fixedly connected to the rotating shaft.

[0008] Preferably, the conveyor belt is sleeved on the surface of the mounting plate, both ends of the mounting plate are rotatably connected with transmission rollers, the conveyor belt is sleeved on the surfaces of two transmission rollers, a second motor is fixedly installed on the side wall of the mounting plate, and the output shaft port of the second motor is fixedly connected to the transmission roller.

[0009] Preferably, a cylinder is fixedly installed on the top of the cleaning box, and a connecting plate is fixedly installed on the output port of the cylinder. A spring is arranged between the connecting plate and the mounting plate, and the two ends of the spring are respectively fixedly connected to the mounting plate and the connecting plate. A telescopic sleeve is arranged inside the spring, and the two ends of the telescopic sleeve are respectively fixedly connected to the connecting plate and the mounting plate.

[0010] Preferably, the cleaning pipe includes four water spray pipes and a connecting pipe, the connecting pipe is in an "I"-shaped structure, and the four water spray pipes are respectively connected to four ports of the connecting pipe.

[0011] Preferably, the gap between the two cleaning rollers is kept flush with the top of the bracket, and the four water spray pipes are respectively located on both sides of the cleaning roller.

[0012] The utility model has at least the following beneficial effects:

[0013] By setting up a cleaning box, a cleaning roller, a water spray pipe and a conveyor belt for driving the heat exchange plates to move automatically, the heat exchange plates can be easily moved. The degree of automation is high, and online cleaning can be achieved without excessive manual control. The cleaning time and speed can be controlled according to the degree of dirt on the heat exchange plates, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are 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.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Side view;

[0017] Figure 3 This is a cross-sectional view of the cleaning box of the utility model;

[0018] Figure 4 This is a schematic diagram of the bracket structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the cleaning pipe structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the mounting plate of the utility model.

[0021] In the figure: 1. cleaning box; 2. heat exchange plate; 3. bracket; 4. cleaning roller; 5. first motor; 6. gear; 7. rotating shaft; 8. cleaning pipe; 81. water spray pipe; 82. connecting pipe; 9. conveyor belt; 10. mounting plate; 11. connecting plate; 12. cylinder; 13. spring; 14. second motor; 15. transmission roller. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0026] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Reference Figure 1-6A heat exchanger online cleaning device includes a cleaning box 1 and a heat exchange plate 2. Both ends of the cleaning box 1 are set to be open near the top. Two brackets 3 are fixedly installed inside the cleaning box 1. Two cleaning rollers 4 are arranged between the two brackets 3. The two cleaning rollers 4 are distributed up and down. A mounting plate 10 is arranged inside the cleaning box 1. A conveyor belt 9 is arranged on the surface of the mounting plate 10. A cleaning pipe 8 is arranged inside the cleaning box 1. When in use, the heat exchange plate 2 is placed on the bracket 3 of the cleaning box 1, and then the conveyor belt 9 is used to press it so that the conveyor belt 9 is moved in the activity. When moving, friction is used to drive the heat exchange plate 2 to move on the bracket 3. The cleaning pipe 8 is connected to the external pipeline by a high-pressure pump. When the heat exchange plate 2 moves to the position of the cleaning roller 4, clean water is extracted by the high-pressure pump and then sprayed out by the cleaning pipe 8, so that the high-pressure water is sprayed onto the heat exchange plate 2. As the conveyor belt 9 drives the heat exchange plate 2 to move, the bristles on the two cleaning rollers 4 can be used to clean the heat exchange plate 2 to improve the cleaning effect. The bracket 3 can support the heat exchange plate 2 and also drain water.

[0028] Furthermore, a rotating shaft 7 is provided on the surface of the two cleaning rollers 4, and gears 6 are fixedly installed on the surface of the two rotating shafts 7, and the two gears 6 are meshed with each other. A first motor 5 is fixedly installed on the side wall of the cleaning box 1, and the output shaft port of the first motor 5 is fixedly connected to the rotating shaft 7. The rotation directions of the two cleaning rollers 4 are opposite. In specific operation, the first motor 5 is directly started, and the first motor 5 drives the rotating shaft 7 to rotate. The two rotating shafts 7 rotate synchronously through two mutually meshing gears 6, but the rotation directions are opposite, so that the two cleaning rollers 4 can rotate synchronously in opposite directions. The two cleaning rollers 4 clean the heat exchange plate 2 only through the contact of the bristles, so the cleaning rollers 4 do not have a transmission effect on the heat exchange plate 2, and the moving speed of the heat exchange plate 2 is completely controlled by the transmission of the conveyor belt 9. Therefore, for heat exchange plates 2 with different dirt levels, the speed of the conveyor belt 9 can be controlled to control the cleaning degree, which is convenient for operation and improves cleaning efficiency.

[0029] Furthermore, the conveyor belt 9 is sleeved on the surface of the mounting plate 10, and both ends of the mounting plate 10 are rotatably connected with transmission rollers 15. The conveyor belt 9 is sleeved on the surfaces of the two transmission rollers 15. The side wall of the mounting plate 10 is fixedly installed with a second motor 14, and the output shaft port of the second motor 14 is fixedly connected to the transmission roller 15. The conveyor belt 9 is sleeved on the mounting plate 10. Therefore, when the conveyor belt 9 applies pressure to the heat exchange plate 2, the mounting plate 10 can be used for support to avoid direct deformation of the conveyor belt 9, which causes the conveyor belt 9 to be unable to effectively drive the heat exchange plate 2 to move. By starting the second motor 14, the second motor 14 drives the transmission roller 15 to rotate, and the transmission roller 15 drives the conveyor belt 9 to transmit, thereby conveniently utilizing the friction between the conveyor belt 9 and the heat exchange plate 2 to drive the heat exchange plate 2 to move.

[0030] Furthermore, a cylinder 12 is fixedly installed on the top of the cleaning box 1, and a connecting plate 11 is fixedly installed on the output port of the cylinder 12. A spring 13 is arranged between the connecting plate 11 and the mounting plate 10, and the two ends of the spring 13 are respectively fixedly connected to the mounting plate 10 and the connecting plate 11. A telescopic sleeve is arranged inside the spring 13, and the two ends of the telescopic sleeve are respectively fixedly connected to the connecting plate 11 and the mounting plate 10. When placing the heat exchange plate 2, it is necessary to first use the cylinder 12 to drive the connecting plate 11 to move up, and the connecting plate 11 drives the mounting plate 10 to move up through the telescopic rod, and the mounting plate 10 drives the conveyor belt 9, the second motor 14 and the transmission roller 15 to move up synchronously, so that the heat exchange plate 2 is placed It is placed on the surface of the bracket 3 and at the bottom of the conveyor belt 9, and then the cylinder 12 is used to drive the connecting plate 11 and the mounting plate 10 to move downward as a whole, so as to apply pressure to the heat exchange plate 2, so as to facilitate the conveyor belt 9 to use friction to drive the heat exchange plate 2 to move on the bracket 3. When the heat exchange plate 2 is completely detached from the conveyor belt 9, the worker only needs to extract the heat exchange plate 2 from the other end to complete the cleaning of one heat exchange plate 2. By setting the spring 13, it can be avoided that the conveyor belt 9 and the mounting plate 10 squeeze the heat exchange plate 2 too much, resulting in the inability to drive the heat exchange plate 2. The spring 13 can provide a certain buffer space, so as to facilitate use.

[0031] Furthermore, the cleaning pipe 8 includes four water spray pipes 81 and a connecting pipe 82. The connecting pipe 82 is in an "I"-shaped structure. The four water spray pipes 81 are respectively connected to the four ports of the connecting pipe 82. By setting up four water spray pipes 81, it is convenient to perform initial cleaning on the upper and lower sides of the heat exchange plate 2 before the heat exchange plate 2 moves to the cleaning roller 4. When the heat exchange plate 2 moves out of the cleaning roller 4, the other two water spray pipes 81 can be used to perform secondary cleaning on the upper and lower sides of the heat exchange plate 2, thereby improving the cleaning degree and facilitating operation.

[0032] Furthermore, the gap between the two cleaning rollers 4 is kept flush with the top of the bracket 3 , and the four water spray pipes 81 are respectively located on both sides of the cleaning roller 4 .

[0033] In summary, during use, the heat exchange plate 2 is placed on the bracket 3 of the cleaning box 1, and then the conveyor belt 9 is used to press it down, so that the conveyor belt 9 uses friction to drive the heat exchange plate 2 to move on the bracket 3 when it is active. The cleaning pipe 8 is connected to the external pipeline by a high-pressure pump. When the heat exchange plate 2 moves to the position of the cleaning roller 4, clean water is extracted by the high-pressure pump and then sprayed out by the cleaning pipe 8, so that the high-pressure water is sprayed onto the heat exchange plate 2. As the conveyor belt 9 drives the heat exchange plate 2 to move, the bristles on the two cleaning rollers 4 can be used to clean the heat exchange plate 2 to improve the cleaning effect. The two cleaning rollers 4 rotate in opposite directions. In specific operations, the first motor 5 is directly started, and the first motor 5 drives the rotating shaft 7 to rotate. The two rotating shafts 7 are connected by The two meshing gears 6 rotate synchronously, but the rotation directions are opposite, so that the two cleaning rollers 4 can rotate synchronously in opposite directions, and the two cleaning rollers 4 clean the heat exchange plate 2 only through the contact of the bristles, so the cleaning rollers 4 do not have a transmission effect on the heat exchange plate 2, and the moving speed of the heat exchange plate 2 is completely controlled by the transmission of the conveyor belt 9. Therefore, for heat exchange plates 2 with different degrees of dirt, the speed of the conveyor belt 9 can be controlled to control the cleaning degree, which is convenient for operation and improves the cleaning efficiency. The conveyor belt 9 is mounted on the mounting plate 10, so when the conveyor belt 9 applies pressure to the heat exchange plate 2, the mounting plate 10 can be used for support to avoid direct deformation of the conveyor belt 9, which causes the conveyor belt 9 to be unable to effectively drive the heat exchange plate. 2 is moved, by starting the second motor 14, the second motor 14 drives the transmission roller 15 to rotate, and the transmission roller 15 drives the conveyor belt 9 to drive, so as to facilitate the use of the friction between the conveyor belt 9 and the heat exchange plate 2 to drive the heat exchange plate 2 to move. When placing the heat exchange plate 2, it is necessary to first use the cylinder 12 to drive the connecting plate 11 to move up, and the connecting plate 11 drives the mounting plate 10 to move up through the telescopic rod, and the mounting plate 10 drives the conveyor belt 9, the second motor 14 and the transmission roller 15 to move up synchronously, so that the heat exchange plate 2 is placed on the surface of the bracket 3 and is located at the bottom of the conveyor belt 9, and then the cylinder 12 is used to drive the connecting plate 11 and the mounting plate 10 to move downward as a whole, so as to apply pressure to the heat exchange plate 2, so as to facilitate the conveyor belt 9 to use the friction to bring The heat exchange plate 2 moves on the bracket 3. When the heat exchange plate 2 is completely detached from the conveyor belt 9, the worker only needs to extract the heat exchange plate 2 from the other end to complete the cleaning of the heat exchange plate 2. The spring 13 can be provided to avoid the conveyor belt 9 and the mounting plate 10 from squeezing the heat exchange plate 2 too much, resulting in the inability to drive the heat exchange plate 2. The spring 13 can provide a certain buffer space, which is convenient for use. By providing four water spray pipes 81, it is convenient to perform the initial cleaning on the upper and lower sides of the heat exchange plate 2 before the heat exchange plate 2 moves to the cleaning roller 4. When the heat exchange plate 2 moves out of the cleaning roller 4, the other two water spray pipes 81 can be used to perform the secondary cleaning on the upper and lower sides of the heat exchange plate 2.Thereby improving the cleaning degree and facilitating the operation.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A heat exchanger online cleaning device, characterized in that: The invention comprises a cleaning box (1) and a heat exchange plate (2), wherein both ends of the cleaning box (1) are arranged near the top to be opened, two brackets (3) are fixedly installed inside the cleaning box (1), two cleaning rollers (4) are arranged between the two brackets (3), and the two cleaning rollers (4) are distributed up and down, a mounting plate (10) is arranged inside the cleaning box (1), a conveyor belt (9) is arranged on the surface of the mounting plate (10), and a cleaning pipe (8) is arranged inside the cleaning box (1).

2. The heat exchanger online cleaning device according to claim 1, characterized in that: The surfaces of the two cleaning rollers (4) are each provided with a rotating shaft (7), the surfaces of the two rotating shafts (7) are each fixedly mounted with a gear (6), the two gears (6) are meshed with each other, a first motor (5) is fixedly mounted on the side wall of the cleaning box (1), and an output shaft port of the first motor (5) is fixedly connected to the rotating shaft (7).

3. The heat exchanger online cleaning device according to claim 1, characterized in that: The conveyor belt (9) is sleeved on the surface of the mounting plate (10), and both ends of the mounting plate (10) are rotatably connected to transmission rollers (15). The conveyor belt (9) is sleeved on the surfaces of two transmission rollers (15), and a second motor (14) is fixedly mounted on the side wall of the mounting plate (10), and an output shaft port of the second motor (14) is fixedly connected to the transmission roller (15).

4. The heat exchanger online cleaning device according to claim 1, characterized in that: A cylinder (12) is fixedly mounted on the top of the cleaning box (1), a connecting plate (11) is fixedly mounted on the output port of the cylinder (12), a spring (13) is arranged between the connecting plate (11) and the mounting plate (10), two ends of the spring (13) are respectively fixedly connected to the mounting plate (10) and the connecting plate (11), a telescopic sleeve is arranged inside the spring (13), two ends of the telescopic sleeve are respectively fixedly connected to the connecting plate (11) and the mounting plate (10).

5. The heat exchanger online cleaning device according to claim 1, characterized in that: The cleaning pipe (8) comprises four water spray pipes (81) and a connecting pipe (82); the connecting pipe (82) is in an "I"-shaped structure; the four water spray pipes (81) are respectively connected to four ports of the connecting pipe (82).

6. The heat exchanger online cleaning device according to claim 5, characterized in that: The gap between the two cleaning rollers (4) is kept flush with the top of the bracket (3), and the four water spray pipes (81) are respectively located on both sides of the cleaning roller (4).

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