Filtering device used in closed chemical cleaning system

Abstract

The utility model relates to the technical field of filtering of a cleaning system, and discloses a filtering device used in a closed chemical cleaning system, which comprises a barrel and a screen end, the right side of the barrel is fixedly connected with an inlet mother pipe, the left side of the inside of the barrel is fixedly connected with a circular gasket, the right side of the screen end is fixedly connected with a screen plate, and the screen plate is fixedly connected with an inlet mother pipe. A plurality of supports are fixedly connected to the exterior of the screen plate, a screen mesh is fixedly connected to the exterior of the screen plate, the left side of the end of the screen mesh is in contact with an annular square pressing rib, a residue cleaning opening is fixedly connected to the bottom of the barrel, and a connecting assembly used for being connected with an outlet is arranged on the left side of the exterior of the barrel. According to the utility model, the device can be connected in series in a closed circulating cleaning system to effectively filter the cleaning liquid, and can intermittently remove the filtered residues in time, so that the cleaning cleanliness is improved to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration of cleaning systems, and particularly relates to a filtering device used in a closed chemical cleaning system. Background Art

[0002] In a closed chemical cleaning system, the filtering device plays a crucial role. Such systems are usually used for the cleaning and maintenance of precision equipment, such as semiconductor manufacturing equipment, chemical reactors, etc. The filtering device can effectively remove particulate impurities in the cleaning solution, ensuring the efficiency and safety of the cleaning process. In addition, the filtering device is designed with an automatic cleaning function, which can perform backwashing without shutting down the machine, so as to extend the service life of the filter media and maintain the filtering efficiency. Its compact design makes it easy to integrate into the existing cleaning system without occupying too much space. In this way, the filtering device in the closed chemical cleaning system not only improves the cleaning quality, but also reduces the maintenance cost, and is a key component to ensure the cleanliness requirements in the industrial production process.

[0003] At the cleaning site before the start-up of industrial and new installations, if the cleaning system is a closed system according to the cleaning process requirements, the slag washed down will directly enter the inlet of the cleaning pump along with the system, and then be sent into the device to be cleaned under the power of the pump, causing repeated pollution to the device. It is very difficult to ensure the cleanliness of the system to be cleaned. At the same time, these slag are also easy to jam the pump. Therefore, in view of the above deficiencies, a filtering device used in a closed chemical cleaning system is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a filtering device used in a closed chemical cleaning system, aiming to improve the problem that the slag washed down in the existing cleaning system directly enters the inlet of the cleaning pump, affecting the cleaning efficiency.

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

[0006] A filtering device used in a closed chemical cleaning system includes a cylinder body and a screen end. The right side of the cylinder body is fixedly connected with an inlet header pipe. A circular gasket is fixedly connected to the left side inside the cylinder body. The right side of the screen end is fixedly connected with a screen plate. A plurality of brackets are fixedly connected to the outside of the screen plate. A screen is fixedly connected to the outside of the screen plate. A circular ring square bead is in contact with the left side of the screen end. A slag cleaning port is fixedly connected to the bottom of the cylinder body. A connection component for connecting the outlet is arranged on the left side outside the cylinder body;

[0007] As a further description of the above technical solution:

[0008] The connecting component includes flange one, the right side of flange one is fixedly connected to the left side of the screen end, flange two is fixedly connected to the left side of flange one, a head is fixedly connected to the left side of flange two, and an outlet header pipe is fixedly connected to the left side of the head.

[0009] As a further description of the above technical solution:

[0010] The circular washer is a circle made of a 10-mm-thick stainless steel plate, its outer diameter is closely attached to the inner wall of the cylinder body, and the width of the circular washer is preferably 30 mm.

[0011] As a further description of the above technical solution:

[0012] The screen end is the same as the circular washer in terms of outer diameter, thickness, and material, and the inner diameter of the screen end is 2 mm smaller than the inner diameter of the circular washer.

[0013] As a further description of the above technical solution:

[0014] The sieve plate is in the shape of a round barrel with a thickness of 2 - 4 mm, its outer diameter matches the inner diameter of the screen end, and its length is preferably 1500 mm - 2000 mm.

[0015] As a further description of the above technical solution:

[0016] The diameter of flange one matches the diameter of the cylinder body, and flange one and flange two are fastened by bolts.

[0017] As a further description of the above technical solution:

[0018] When flange one and flange two are fastened, the sieve plate is pressed on the circular washer through the circular ring square bead.

[0019] The present utility model has the following beneficial effects:

[0020] In the present utility model, this device can be connected in series in a closed-loop cleaning system to effectively filter the cleaning liquid, and can intermittently remove the filtered residues in a timely manner, greatly improving the cleanliness of the cleaning. Description of the Drawings

[0021] Figure 1 is a perspective view of a filtering device used in a closed chemical cleaning system proposed by the present utility model;

[0022] Figure 2 is a schematic structural diagram of the inlet header pipe of a filtering device used in a closed chemical cleaning system proposed by the present utility model;

[0023] Figure 3Schematic diagram of the support structure of a filter device used in a closed chemical cleaning system proposed by the present utility model;

[0024] Figure 4 Exploded view of the circular washer structure of a filter device used in a closed chemical cleaning system proposed by the present utility model.

[0025] Legend:

[0026] 1. Cylinder body; 2. Inlet header pipe; 3. Circular washer; 4. Screen end; 5. Screen plate; 6. Support; 7. Screen; 8. Ring square bead; 9. Slag cleaning port; 10. Flange 1; 11. Flange 2; 12. Head; 13. Outlet header pipe. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0028] Refer to Figures 1 to 3 , an embodiment provided by the present utility model: a filter device used in a closed chemical cleaning system, including a cylinder body 1 and a screen end 4. The cylinder body 1 serves as the main structure of the entire filter device, providing a closed space to accommodate other components. It is usually made of a strong material to ensure stability and durability in a high-pressure environment. The inlet header pipe 2 is fixedly connected to the right side of the cylinder body 1. The inlet header pipe 2 is the main channel for the cleaning liquid to enter the filter device. The circular washer 3 is fixedly connected to the left side inside the cylinder body 1. The circular washer 3 is a circle made of a stainless steel plate with a thickness of 10 mm, and its outer diameter closely adheres to the inner wall of the cylinder body 1. The width of the circular washer 3 is preferably 30 mm. The screen end 4 has the same outer diameter, thickness, and material as the circular washer 3. The inner diameter of the screen end 4 is 2 mm smaller than the inner diameter of the circular washer 3. The main function of the circular washer 3 is to provide support for the screen end 4 and ensure a good sealing effect between the screen end and the inner wall of the cylinder body 1;

[0029] On the right side of the screen end 4, a screen plate 5 is fixedly connected. The screen plate 5 is in the shape of a circular barrel with a thickness of 2 - 4 mm. Its outer diameter matches the inner diameter of the screen end 4, and its length is preferably 1500 mm - 2000 mm. The design of the screen plate 5 not only ensures sufficient filtering area but also avoids excessive volume occupation. Multiple brackets 6 are fixedly connected to the outside of the screen plate 5. The function of the brackets 6 is to enhance the structural stability of the screen plate 5 and prevent the deformation of the screen plate 5 caused by pressure changes or particle accumulation during the filtering process. A screen 7 is fixedly connected to the outside of the screen plate 5. The screen plate 5 is a key component in the filtering process and is used to support the screen 7. A circular-ring square bead 8 is in contact with the left side of the screen end 4. A slag cleaning port 9 is fixedly connected to the bottom of the cylinder body 1. The slag cleaning port 9 is an important channel for removing the filtered impurities. A connection component for connecting the outlet is arranged on the left side outside the cylinder body 1.

[0030] Refer to Figures 2 to 4 , the connection component includes a first flange 10. The right side of the first flange 10 is fixedly connected to the left side of the screen end 4. The diameter of the first flange 10 matches the diameter of the cylinder body 1. A second flange 11 is fixedly connected to the left side of the first flange 10. The first flange 10 and the second flange 11 are fastened by bolts. When the first flange 10 and the second flange 11 are fastened, the screen plate 5 is pressed on the circular washer 3 by the circular-ring square bead 8. The function of the circular-ring square bead 8 is to firmly press the screen plate 5 on the circular washer 3 when the first flange 10 and the second flange 11 are fastened, ensuring the stability of the filtering structure. A head 12 is fixedly connected to the left side of the second flange 11. An outlet header pipe 13 is fixedly connected to the left side of the head 12. The first flange 10, the second flange 11, the head 12, and the outlet header pipe 13 together constitute the connection interface between the filtering device and other parts of the cleaning system. The design of the flange enables the device to be conveniently installed and disassembled, while the head 12 provides the necessary sealing function to prevent the leakage of the cleaning liquid. The outlet header pipe 13 is the channel for the filtered cleaning liquid to flow out of the filtering device and return to the cleaning system.

[0031] Working principle: At the construction site, this device is connected in series to the return water main pipe of the cleaning system. The cleaning liquid enters from the inlet main pipe 2. The slag in the cleaning liquid is filtered outside the screen 7 under the combined filtration of the screen plate 5 and the brackets 6. The filtered cleaning liquid flows out through the screen plate 5 and then through the outlet header pipe 13, enters the inlet of the pump, forming a closed loop. The filtered slag is washed by the normally flowing cleaning liquid to one end of the filter outlet, and under its own gravity, it gathers near the slag cleaning port 9. After gathering to a certain extent, the slag cleaning port 9 is opened, and the impurities will be discharged outside the barrel under the combined action of the self-weight of the slag and the water flow. To facilitate the collection of the slag, the connection part between the upper part of the slag cleaning port 9 and the cylinder body 1 is designed to be concave.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A filtering device used in a closed chemical cleaning system, comprising a cylinder (1) and a screen end (4), characterized in that: The right side of the cylinder (1) is fixedly connected to an inlet main pipe (2), the left side of the interior of the cylinder (1) is fixedly connected to a circular gasket (3), the right side of the screen end (4) is fixedly connected to a screen plate (5), the outside of the screen plate (5) is fixedly connected to a plurality of brackets (6), the outside of the screen plate (5) is fixedly connected to a screen (7), the left side of the screen end (4) is in contact with a circular square rib (8), the bottom of the cylinder (1) is fixedly connected to a slag cleaning port (9), and the left side of the exterior of the cylinder (1) is provided with a connection assembly for connecting to an outlet.

2. A filtering device used in a closed chemical cleaning system according to claim 1, characterized in that: The connection assembly comprises a flange 1 (10), the right side of the flange 1 (10) being fixedly connected to the left side of the screen end head (4), the left side of the flange 1 (10) being fixedly connected to a flange 2 (11), the left side of the flange 2 (11) being fixedly connected to a sealing head (12), and the left side of the sealing head (12) being fixedly connected to an outlet main pipe (13).

3. A filtering device for use in a closed chemical cleaning system according to claim 1, characterized in that: The circular gasket (3) is a circle made of a stainless steel plate with a thickness of 10 mm, and its outer diameter is closely attached to the inner wall of the cylinder (1). The width of the circular gasket (3) is preferably 30 mm.

4. A filtering device for use in a closed chemical cleaning system according to claim 1, characterized in that: The outer diameter, thickness and material of the screen end head (4) are consistent with those of the circular gasket (3); the inner diameter of the screen end head (4) is 2 mm smaller than the inner diameter of the circular gasket (3).

5. The filtering device used in a closed chemical cleaning system according to claim 1, characterized in that: The sieve plate (5) is cylindrical and has a thickness of 2-4 mm. Its outer diameter matches the inner diameter of the sieve end (4). Its length is preferably 1500 mm-2000 mm.

6. A filtering device used in a closed chemical cleaning system according to claim 2, characterized in that: The diameter of the flange one (10) matches the diameter of the cylinder (1), and the flange one (10) and the flange two (11) are fastened by bolts.

7. A filtering device for use in a closed chemical cleaning system according to claim 2, characterized in that: When the flange 1 (10) and the flange 2 (11) are fastened, the sieve plate (5) is pressed onto the circular gasket (3) by the circular square pressing rib (8).

Images