Efficient cleaning equipment for tubular heat exchanger

Abstract

The utility model discloses efficient cleaning equipment for a tubular heat exchanger, which relates to the field of cleaning equipment and comprises a high-pressure water spraying component, the high-pressure water spraying component consists of an annular water spraying pipeline, a connecting pipeline and a mounting connecting plate, and the mounting connecting plate is fixedly sleeved at the head part of the annular water spraying pipeline; the high-pressure water spraying assembly comprises an annular water spraying pipeline and a connecting pipeline, the connecting pipeline is fixedly installed on the outer wall of the annular water spraying pipeline, the high-pressure water spraying assembly is provided with a brushing assembly, and the brushing assembly is composed of a driving motor, a transmission shaft, a first connecting plate, a second connecting plate, a rotating column and cleaning bristles. And a brushing assembly composed of a driving motor, a transmission shaft, a first connecting plate, a second connecting plate, a rotating column and cleaning bristles is arranged on the high-pressure water spraying assembly, the synergistic effect of high-pressure water flow flushing and mechanical brushing is achieved, and the cleaning efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment, and in particular to a high-efficiency cleaning device for shell and tube heat exchangers. Background Technology

[0002] Shell-and-tube heat exchangers are widely used in industries such as chemical, petroleum, energy, and pharmaceuticals. They exchange heat between fluids inside and outside the tubes to achieve heating or cooling. Due to long-term operation, scale, deposits, and microbial films easily accumulate on the tube walls of shell-and-tube heat exchangers, leading to decreased heat exchange efficiency, increased energy consumption, and potentially even corrosion and blockage. Therefore, regular cleaning of shell-and-tube heat exchangers is crucial for ensuring efficient operation and extending their service life.

[0003] Currently, the main cleaning methods for shell-and-tube heat exchangers include: manually or mechanically removing scale from the tube walls using tools such as brushes and scrapers. This method is simple to operate but inefficient and difficult to thoroughly clean heat exchangers with complex structures; using acids, alkalis, or other chemical reagents to dissolve scale, which has a good chemical cleaning effect but may cause corrosion to the tube walls and has high waste liquid treatment costs, making it environmentally unfriendly; and using high-pressure water jets to impact the scale on the tube walls. This method does not require chemical reagents and is environmentally friendly, but it still has drawbacks, namely, that rinsing with high-pressure water jets alone is insufficient to remove stubborn scale, resulting in incomplete cleaning of some areas. To address the above problems, this application proposes a high-efficiency cleaning device for shell-and-tube heat exchangers. Utility Model Content

[0004] The main objective of this invention is to provide a high-efficiency cleaning device for shell and tube heat exchangers, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency cleaning device for a shell-and-tube heat exchanger includes a high-pressure water spray assembly. The high-pressure water spray assembly consists of an annular water spray pipe, a connecting pipe, and a mounting plate. The mounting plate is fixedly sleeved on the head of the annular water spray pipe, and the connecting pipe is fixedly installed on the outer wall of the annular water spray pipe. A brushing assembly is installed on the high-pressure water spray assembly. The brushing assembly consists of a drive motor, a transmission shaft, a first connecting plate, a second connecting plate, a rotating column, and cleaning bristles. The head end of the transmission shaft is fixedly installed on the output shaft of the drive motor, the first connecting plate is fixedly installed on the tail end of the transmission shaft, the second connecting plate is fixedly installed on one end of the first connecting plate, the rotating column is fixedly installed on one end of the second connecting plate, and the cleaning bristles are fixedly installed on the outer wall of the rotating column.

[0007] Preferably, the outer wall of the annular water spray pipe has a plurality of spray holes in a ring shape at its tail end, and a water flow hole is provided at the head end of the outer wall of the annular water spray pipe. Both the spray holes and the water flow hole penetrate the inner and outer sides of the outer wall of the annular water spray pipe. Two grip handles are fixedly fitted at the head end of the annular water spray pipe.

[0008] Preferably, the connecting pipe is sleeved around the water flow hole opened on the outer wall of the annular water spray pipe, and the connecting pipe is connected to the high-pressure water pump through a pipe.

[0009] Preferably, the drive motor on the scrubbing assembly is installed at one end of the annular water spray pipe and the mounting connecting plate, and the drive motor is fixedly connected to the mounting connecting plate by bolts.

[0010] Preferably, the drive shaft on the scrubbing assembly is rotatably mounted inside the annular water spray pipe, and the first connecting plate is located behind the annular water spray pipe.

[0011] Preferably, the second connecting plate on the brushing assembly is fixedly connected to the first connecting plate by bolts, and the second connecting plate and the rotating column are integrally formed.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By setting up a high-pressure water spray assembly consisting of an annular water spray pipe, connecting pipes, and mounting plates, and a brushing assembly consisting of a drive motor, transmission shaft, first connecting plate, second connecting plate, rotating column, and cleaning bristles on the high-pressure water spray assembly, the synergistic effect of high-pressure water rinsing and mechanical brushing is achieved, significantly improving cleaning efficiency. The high-pressure water flow impacts the heat exchanger tube wall from all directions through the spray holes of the annular water spray pipe, effectively removing loose dirt. At the same time, the drive motor drives the rotating column and cleaning bristles to rotate at high speed, mechanically brushing stubborn dirt to ensure thorough cleaning. This combined cleaning method not only avoids the risk of corrosion to the tube wall caused by chemical cleaning, but also overcomes the shortcomings of single high-pressure water rinsing in removing stubborn dirt. In addition, the equipment has a compact structure, is easy to operate, and is suitable for cleaning needs of shell and tube heat exchangers of different specifications, featuring high efficiency, environmental protection, and economy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the positional relationship between the high-pressure water spray component and the scrubbing component of this utility model after cross-section.

[0016] Figure 3 For the present utility model Figure 2 A magnified view of point A;

[0017] Figure 4 This is a cross-sectional structural diagram of the high-pressure water spray component of this utility model;

[0018] Figure 5 For the present utility model Figure 4 A magnified view of point B;

[0019] Figure 6 This is a structural schematic diagram of the high-pressure water spray assembly of this utility model;

[0020] Figure 7 This is a schematic diagram of the structure of the transmission shaft, first connecting plate, second connecting plate, rotating column, and cleaning bristles of this utility model.

[0021] In the diagram: 1. High-pressure water spray assembly; 2. Scrubbing assembly; 3. Handle; 4. Annular water spray pipe; 5. Water spray hole; 6. Water flow hole; 7. Connecting pipe; 8. Mounting connecting plate; 9. Drive motor; 10. Transmission shaft; 11. First connecting plate; 12. Second connecting plate; 13. Rotating column; 14. Cleaning bristles. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-7As shown, a high-efficiency cleaning device for a shell-and-tube heat exchanger includes a high-pressure water spray assembly 1. The high-pressure water spray assembly 1 consists of an annular water spray pipe 4, a connecting pipe 7, and a mounting connecting plate 8. The mounting connecting plate 8 is fixedly sleeved on the head of the annular water spray pipe 4, and the connecting pipe 7 is fixedly installed on the outer wall of the annular water spray pipe 4. A brushing assembly 2 is installed on the high-pressure water spray assembly 1. The brushing assembly 2 consists of a drive motor 9, a transmission shaft 10, a first connecting plate 11, a second connecting plate 12, a rotating column 13, and cleaning bristles 14. The head end of the transmission shaft 10 is fixedly installed on the output shaft of the drive motor 9, the first connecting plate 11 is fixedly installed on the tail end of the transmission shaft 10, the second connecting plate 12 is fixedly installed on one end of the first connecting plate 11, the rotating column 13 is fixedly installed on one end of the second connecting plate 12, and the cleaning bristles 14 are fixedly installed on the rotating column 13. When using the rotating column 13, first connect the connecting pipe 7 to the high-pressure water pump to ensure a high-pressure water supply. The operator holds the handle 3 and inserts the annular spray pipe 4 into the pipe to be cleaned in the shell-and-tube heat exchanger. Start the high-pressure water pump, and the high-pressure water flows through the connecting pipe 7 into the annular spray pipe 4 and sprays out from the spray hole 5 to perform all-round high-pressure flushing of the heat exchanger tube wall. At the same time, start the drive motor 9. The drive motor 9 drives the first connecting plate 11 and the second connecting plate 12 to rotate through the transmission shaft 10, thereby causing the rotating column 13 and its cleaning bristles 14 to rotate at high speed, mechanically scrubbing the stubborn dirt on the tube wall. Through the synergistic effect of high-pressure water flushing and mechanical scrubbing, thorough cleaning is ensured. After cleaning, turn off the high-pressure water pump and drive motor 9, and remove the equipment from the heat exchanger pipe.

[0024] Furthermore, the outer wall of the annular water spray pipe 4 has several spray holes 5 arranged in a ring at its tail end, and a water flow hole 6 is provided at the head of the outer wall of the annular water spray pipe 4. Both the spray holes 5 and the water flow hole 6 penetrate the inner and outer sides of the outer wall of the annular water spray pipe 4. Two grip handles 3 are fixedly fitted at the head of the annular water spray pipe 4. The connecting pipe 7 is fitted around the water flow hole 6 on the outer wall of the annular water spray pipe 4, and the connecting pipe 7 is connected to the high-pressure water pump through a pipe. The drive motor 9 on the scrubbing assembly 2 is installed at one end of the annular water spray pipe 4 and the mounting connecting plate 8, and the drive motor 9 is connected to the high-pressure water pump through a screw... The bolt is fixedly connected to the mounting connecting plate 8. The drive shaft 10 on the brushing assembly 2 is rotatably installed inside the annular spray pipe 4. The first connecting plate 11 is located behind the annular spray pipe 4. The second connecting plate 12 on the brushing assembly 2 is fixedly connected to the first connecting plate 11 by bolts. The second connecting plate 12 and the rotating column 13 are integrally formed structures. When using, first select an annular spray pipe 4 of appropriate size according to the actual inner diameter of the tube heat exchanger pipe, and ensure that its outer diameter is slightly smaller than the inner diameter of the heat exchanger pipe so that it can be inserted smoothly. At the same time, ensure that the cleaning bristles 14 on the rotating column 13 can fully contact the inner wall of the pipe.

[0025] Finally, by setting up a high-pressure water spray assembly 1 consisting of an annular water spray pipe 4, a connecting pipe 7, and a mounting connecting plate 8, and by setting up a brushing assembly 2 consisting of a drive motor 9, a transmission shaft 10, a first connecting plate 11, a second connecting plate 12, a rotating column 13, and cleaning bristles 14 on the high-pressure water spray assembly 1, the synergistic effect of high-pressure water flushing and mechanical brushing is achieved, significantly improving cleaning efficiency. The high-pressure water flow impacts the heat exchanger tube wall from all directions through the spray holes 5 of the annular water spray pipe 4, effectively removing loose dirt; at the same time, the drive motor 9 drives the rotating column 13 and cleaning bristles 14 to rotate at high speed, mechanically brushing stubborn dirt to ensure thorough cleaning. This combined cleaning method not only avoids the risk of corrosion to the tube wall caused by chemical cleaning, but also overcomes the shortcomings of single high-pressure water flushing in removing stubborn dirt. In addition, the equipment has a compact structure, is easy to operate, and is suitable for cleaning needs of shell and tube heat exchangers of different specifications, with the characteristics of high efficiency, environmental protection, and economy.

[0026] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A high-efficiency cleaning device for shell-and-tube heat exchangers, comprising a high-pressure water spray assembly (1), characterized in that: The high-pressure water spray assembly (1) consists of an annular water spray pipe (4), a connecting pipe (7), and an installation connecting plate (8). The installation connecting plate (8) is fixedly sleeved on the head of the annular water spray pipe (4). The connecting pipe (7) is fixedly installed on the outer wall of the annular water spray pipe (4). A brushing assembly (2) is installed on the high-pressure water spray assembly (1). The brushing assembly (2) consists of a drive motor (9), a transmission shaft (10), a first connecting plate (11), a second connecting plate (12), a rotating column (13), and cleaning bristles (14). The head end of the transmission shaft (10) is fixedly installed on the output shaft of the drive motor (9). The first connecting plate (11) is fixedly installed on the tail end of the transmission shaft (10). The second connecting plate (12) is fixedly installed on one end of the first connecting plate (11). The rotating column (13) is fixedly installed on one end of the second connecting plate (12). The cleaning bristles (14) are fixedly installed on the outer wall of the rotating column (13).

2. The high-efficiency cleaning equipment for shell-and-tube heat exchangers according to claim 1, characterized in that: The annular water spray pipe (4) has several spray holes (5) in a ring shape at the tail end of the outer wall. The annular water spray pipe (4) has a water flow hole (6) at the head. Both the spray holes (5) and the water flow hole (6) penetrate the inner and outer sides of the outer wall of the annular water spray pipe (4). The head of the annular water spray pipe (4) is fixedly fitted with two grip handles (3).

3. The high-efficiency cleaning equipment for shell-and-tube heat exchangers according to claim 2, characterized in that: The connecting pipe (7) is fitted around the water flow hole (6) opened on the outer wall of the annular water spray pipe (4), and the connecting pipe (7) is connected to the high-pressure water pump through the pipe.

4. The high-efficiency cleaning equipment for shell-and-tube heat exchangers according to claim 3, characterized in that: The drive motor (9) on the scrubbing assembly (2) is installed at one end of the annular water spray pipe (4) and the mounting connection plate (8), and the drive motor (9) is fixedly connected to the mounting connection plate (8) by bolts.

5. The high-efficiency cleaning equipment for shell-and-tube heat exchangers according to claim 4, characterized in that: The drive shaft (10) on the scrubbing assembly (2) is rotatably installed inside the annular spray pipe (4), and the first connecting plate (11) is located behind the annular spray pipe (4).

6. The high-efficiency cleaning equipment for shell-and-tube heat exchangers according to claim 5, characterized in that: The second connecting plate (12) on the brushing assembly (2) is fixedly connected to the first connecting plate (11) by bolts, and the second connecting plate (12) and the rotating column (13) are integrally formed.

Images