Cleaning device for tank isolation valve

Abstract

The present invention provides a tank isolation valve cleaning device, which can clean the tank isolation valve in a sealed state without disassembling the entire device. The tank isolation valve cleaning device comprises: a cleaning chamber (2) arranged between a tank opening (C) and a tank partition (D); a sealing portion (3) connected to the side of the cleaning chamber (2) to seal the cleaning chamber (2); a nozzle unit (5) for cleaning the tank isolation valve (E) of the tank partition (D) from the cleaning chamber (2); and a drive cylinder (8) for opening and closing the sealing portion (3).

Description

Technical Field

[0001] The present invention relates to a tank isolation valve cleaning device for cleaning the isolation valve installed in a tank. Background Art

[0002] When cleaning the inside of a polymerization kettle, a reaction kettle, a fermentation tank, etc., in most cases, a nozzle dedicated to cleaning is arranged at the opening of the tank to clean the inner wall of the tank. As a specific nozzle dedicated to cleaning, it includes: a rod-shaped component called a sliding spray gun, which can perform various actions such as extension, rotation, and pitch; a nozzle head, which is installed at the top end of the rod-shaped component; and a high-pressure water generating unit, which supplies high-pressure water for cleaning the tank to the nozzle head, and the nozzle head at the top end of the rod-shaped component is raised and lowered relative to the top end of the rod-shaped component, and the high-pressure water is sprayed in a manner of revolving around the main body of the rod-shaped component and rotating (for example, Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Utility Model Registration No. 3175984 Summary of the invention

[0006] In the past, the dedicated cleaning nozzle was used to clean the inside of the tank, and it was not intended to clean the tank isolation valve. Therefore, when the tank is separated by the tank isolation valve, the solvent stored in the tank evaporates due to the external temperature, etc., and the solvent attached to the isolation valve continues to accumulate, making the isolation valve dirty. When cleaning the isolation valve, the dedicated cleaning nozzle must be removed as a whole, and then the isolation valve is disassembled for cleaning. Here, the isolation valve can be any device that can achieve separation in the tank, and can be a sheet-shaped separator or a ball-shaped separator.

[0007] An object of the present invention is to provide a tank isolation valve cleaning device, which can clean the tank isolation valve in a sealed state without disassembling the entire device.

[0008] The cleaning device for the tank isolation valve of the first aspect of the present invention comprises: a cleaning chamber, which is arranged between the tank opening and the tank partition part; a sealing part, which is connected to the side of the cleaning chamber to seal the inside of the cleaning chamber; a nozzle unit, which cleans the tank isolation valve of the tank partition part from the cleaning chamber; and a drive cylinder, which opens and closes the sealing part.

[0009] A cleaning device according to a second aspect of the present invention includes: a cleaning nozzle in a tank; a lifting unit that lifts and lowers the cleaning nozzle; and a cleaning device for a tank isolation valve.

[0010] The method for cleaning an isolation valve in a tank according to the third aspect of the present invention comprises: a step of cleaning the tank after lowering a cleaning nozzle into the tank; a step of moving a cleaning device for the tank isolation valve from a side of a cleaning chamber arranged between a tank opening and a tank partition into the cleaning chamber after raising the cleaning nozzle to the outside of the tank; a step of cleaning the tank isolation valve using the cleaning device for the tank isolation valve; and a step of moving the cleaning device for the tank isolation valve out of the side of the cleaning chamber.

[0011] Effects of the Invention

[0012] According to the tank isolation valve cleaning device of the present invention, the tank isolation valve can be cleaned in a sealed state without disassembling the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cross-sectional view showing the cleaning device 1 of this embodiment when it is closed.

[0014] Figure 2 It is a cross-sectional view showing the cleaning device 1 of the present embodiment during cleaning.

[0015] Figure 3 It is a cross-sectional view showing the tank cleaning device 100 of the present embodiment when it is closed.

[0016] Figure 4 It is a cross-sectional view showing the tank cleaning device 100 according to the present embodiment during cleaning.

[0017] Figure 5 : is a flowchart showing the cleaning process of this embodiment.

[0018] Description of Reference Numerals

[0019] 1 Cleaning device

[0020] 2 Cleaning chamber

[0021] 3. Sealed part

[0022] 4 Sealing cover

[0023] 4a Flange

[0024] 4b Auxiliary flange

[0025] 4c Elastic components

[0026] 4d resin parts

[0027] 5 Nozzle unit

[0028] 6 Nozzle body

[0029] 7 Nozzle connecting rod

[0030] 8 Drive cylinder

[0031] 9 Mobile mechanism

[0032] 10. Inspection Department

[0033] 11 Display Panel

[0034] 100 Tank cleaning device

[0035] 101 Tank cleaning nozzle

[0036] 102 Lifting Department

[0037] Slot A

[0038] B slot body

[0039] C-slot opening

[0040] D-slot divider

[0041] E-groove isolation valve DETAILED DESCRIPTION

[0042] Embodiments of the present invention will be described in detail with reference to appropriate drawings.

[0043] The tank isolation valve cleaning device 1 of the present embodiment cleans the isolation valves attached to various tanks A. The tank A is, for example, a polymerization reactor or a reaction tank in chemical synthesis, or a fermentation tank in fermentation.

[0044] The tank A has a tank opening C at the upper portion of the tank body B. For example, the tank partition D and the tank isolation valve E are connected to the tank opening C. In addition, any tank shape having the above-mentioned structure is not limited to that described in this specification.

[0045] The cleaning device 1 includes a cleaning chamber 2, a sealing portion 3, a nozzle unit 5, and a moving mechanism 9. The cleaning chamber 2 is disposed between a tank opening C and a tank partition D. The sealing portion 3 is connected to the side of the cleaning chamber 2 to seal the inside of the cleaning chamber 2. The nozzle unit 5 cleans the tank isolation valve E from inside the cleaning chamber 2. The moving mechanism 9 opens and closes the sealing portion 3.

[0046] In a general tank A, the tank isolation valve E is mounted or fixed to the tank opening C to ensure airtightness in the tank A. In this embodiment, by disposing the cleaning device 1 between the tank opening C and the tank partition D, the inner side surface of the tank isolation valve E can be cleaned.

[0047] Specifically, the cleaning chamber 2 is cylindrical in shape. One end of the cleaning chamber 2 is joined or connected to the tank opening C. The tank opening C is a circular hole. The other end of the cleaning chamber 2 is joined or connected to the tank partition D. The tank partition D is cylindrical in shape.

[0048] The opening of the tank partition D can be opened and closed by the tank isolation valve E. The structure of the tank partition D is not particularly limited. In addition, the tank isolation valve E of this embodiment is in the shape of a ball. Even if the tank isolation valve E is in the shape of a disk or other shapes, as long as the shape, inner diameter, outer diameter, etc. of the joint or connection part of the cleaning chamber 2 and the tank opening C, and the cleaning chamber 2 and the tank partition D are the same, this embodiment can be applied.

[0049] The tank cleaning device 100 is connected to the upper part of the tank partition D. When the tank A is cleaned by the tank cleaning device 100, the cleaning nozzle 101 of the tank cleaning device 100 is lowered inside the tank partition D or the cleaning chamber 2 to clean the solvent and the like attached to the inner surface of the tank A. Therefore, a path is required inside the cleaning chamber 2 for the tank cleaning device 100 to pass through. Therefore, the nozzle unit 5 for cleaning the tank isolation valve E cannot be always arranged in the cleaning chamber 2.

[0050] In this embodiment, the removal and insertion of the nozzle unit 5 can be adjusted without cleaning the tank isolation valve E. When the tank isolation valve E is not cleaned, that is, when the nozzle unit 5 is not used, the nozzle unit 5 is placed on standby outside the cleaning chamber 2, and the sealing portion 3 is completely closed.

[0051] The sealing part 3 includes a sealing cover 4 and a flange 4a. The sealing cover 4 seals the cleaning chamber 2. The flange 4a can be disassembled and assembled according to the removal and insertion of the nozzle unit 5. The flange 4a is fixed to the cleaning chamber 2. The sealing cover 4 is connected to the nozzle body 6 of the nozzle unit 5. The nozzle connecting rod 7 moves through the center hole of the flange 4a due to the push from the outside of the cleaning chamber 2 caused by the movement of the driving cylinder 8, and the nozzle body 6 is pushed out into the cleaning chamber 2.

[0052] Furthermore, in order to improve the sealing performance between the sealing cover 4 and the flange 4a, an elastic member 4c may be disposed in the center hole of the flange 4a.

[0053] By connecting the sealing cover 4 to the nozzle body 6 , the sealing cover 4 can be opened and closed more limitedly and efficiently depending on whether there is a pressing force from the nozzle unit 5 outside the washing chamber 2 .

[0054] In addition to the smoothness of taking out and putting in the nozzle connecting rod 7, in order to maintain the airtightness in the cleaning chamber 2, an auxiliary flange 4b ​​can also be fixed on the outside of the flange 4a. The auxiliary flange 4b ​​has an auxiliary center hole connected to the center hole of the flange 4a. An elastic member 4c is arranged on the inner circumference of the auxiliary center hole to support the nozzle connecting rod 7.

[0055] Furthermore, the shapes of the flange 4a and the auxiliary flange 4b ​​are not limited to the cylindrical shape but may be elliptical or polygonal, and can be changed according to various specifications such as the connection shape of the side surface of the cleaning chamber 2.

[0056] A resin member 4d may be installed inside the auxiliary flange 4b. The resin member 4d reduces the wear of the flange 4a, the auxiliary flange 4b, the elastic member 4c, etc. The resin member 4d can suppress the wear of the flange 4a, the auxiliary flange 4b, the elastic member 4c, etc. caused by foreign matter, dust, etc. attached to the nozzle connecting rod 7.

[0057] Furthermore, by disposing the auxiliary flange 4b, it is possible to prevent the position of the nozzle connection rod 7 inserted into the flange 4a from being shifted.

[0058] When cleaning the tank isolation valve E, the nozzle unit 5 moves the nozzle tip into the cleaning chamber 2 and sprays the high-pressure cleaning water supplied from the high-pressure water generating unit in a desired direction through the spray nozzle.

[0059] The nozzle unit 5 includes a nozzle body 6 and a nozzle connecting rod 7. The nozzle body 6 sprays cleaning liquid. One end of the nozzle connecting rod 7 is fixed to the nozzle body 6, and the other end is fixed to the driving cylinder 8. The nozzle body 6 has one or more spray nozzles at the top. The nozzle body 6 sprays high-pressure water in all directions, such as above and below the cleaning chamber where the tank isolation valve E is arranged. The spray nozzle is preferably selected from a flat nozzle, a straight nozzle, etc. according to the material and shape of the tank isolation valve E. In addition, the nozzle body 6 can also be rotated. In addition to configuring the spray nozzle in the nozzle body 6, a nozzle hole can also be formed in the nozzle body 6, which has the same function as the spray nozzle.

[0060] Since the nozzle unit 5 includes the nozzle main body 6 and the nozzle connecting rod 7, the operation of the drive cylinder 8 can be transmitted more efficiently. As a result, the nozzle unit 5 can be moved more efficiently.

[0061] The nozzle connection rod 7 is in a rod shape. By fixing the nozzle connection rod 7 to the drive cylinder 8, the nozzle unit 5 moves as the drive cylinder 8 is driven.

[0062] The moving mechanism 9 moves the nozzle unit 5 by driving the drive cylinder 8. As a result, the sealed portion 3 is pushed from the outside of the cleaning chamber 2, and the sealed portion 3 is opened and closed. The drive cylinder 8 is, for example, a pneumatic cylinder, a hydraulic cylinder, or an electric pressure cylinder. The drive cylinder 8 of this embodiment is a pressure cylinder, but it can also be an electric cylinder that does not use pressure. The drive cylinder 8 of this embodiment is a pneumatic cylinder.

[0063] When cleaning the tank isolation valve E, air is supplied from an air supply source (not shown) to one end of the drive cylinder 8. As a result, the nozzle connection rod 7 connected to the drive cylinder 8 moves toward the cleaning chamber 2, and the nozzle body 6 moves toward the center of the cleaning chamber 2. After the cleaning of the tank isolation valve E is completed, air is supplied to the other end of the drive cylinder 8. As a result, the nozzle connection rod 7 moves away from the cleaning chamber 2, and the nozzle body 6 is stored inside the flange 4a.

[0064] A detection unit 10 for detecting the position of the nozzle connecting rod 7 may also be provided. The detection unit 10 can control the position of the nozzle unit 5 when the tank isolation valve E is cleaned (a fixed position or a position within an allowable range, etc.), or the position of the nozzle unit 5 when the sealing portion 3 is closed when not cleaning (a fixed position or a stop position, etc.). In addition, a plurality of detection units 10 may be provided.

[0065] The detection unit 10 can determine whether the position of the nozzle unit 5 or the sealing portion 3 is appropriate.

[0066] In addition, the cleaning device 1 can also be configured in the tank cleaning device 100. The cleaning nozzle 101 in the tank can be a structure that can spray high-pressure cleaning water supplied from the high-pressure water generating unit in the desired direction through the spray nozzle. As long as the spray nozzle of high-pressure water is rotated in a direction intersecting the horizontal direction, the inner wall surface of the tank can be well cleaned along the lifting direction by performing the lifting movement performed by the lifting part 102. The lifting part 102 can be a structure that can lift the cleaning nozzle 101, and a commercially available device such as a manual or automatic winch or a winding device using various motors can be used. In addition, the cleaning nozzle 101 in the tank has at least one spray nozzle. The cleaning nozzle 101 is configured in such a way that when the spray nozzle is rotated, it can be configured at more than two equal angles relative to the rotation axis of the spray nozzle.

[0067] Furthermore, by integrating the tank cleaning nozzle 101 and the like with the tank isolation valve E cleaning device 1, not only the tank interior but also the inner surface of the tank isolation valve E and the like can be cleaned efficiently.

[0068] The cleaning nozzle 101 in the tank is preferably configured such that the high-pressure water jet nozzle can rotate in a direction intersecting the horizontal direction and can rotate in the horizontal direction. Thus, all areas inside the tank having a complex shape can be cleaned. In addition, by spraying high-pressure water on the cleaned area of ​​the same tank inner wall surface from various angles, uneven cleaning can be eliminated.

[0069] The moving operation of the tank cleaning device 100 and the cleaning nozzle 101 in the tank can be either manual or automatic. In the case of manual operation, the moving operation can be performed while measuring the extension length of the spray gun or the rotation angle of each unit, or the cleaning nozzle 101 in the tank can be visually operated by a camera. In the case of automatic operation, the position is controlled by an encoder and the target part is cleaned according to the cleaning sequence. Furthermore, a display panel 11 is prepared outside the tank cleaning device 100, which can remotely operate the cleaning conditions of the tank body B (cleaning pressure, water supply flow rate, speed, etc.), the cleaning conditions of the cleaning chamber 2 (cleaning pressure, water supply flow rate, speed, etc.), the air pressure supplied to the driving cylinder 8 of the moving mechanism 9, the branch timing of the air pressure of the driving cylinder 8, and the fixed position of the nozzle connecting rod 7 using the detection unit 10.

[0070] Then, if Figure 5 The cleaning step of this embodiment will be described below.

[0071] First, after the cleaning nozzle 101 of the tank cleaning device 100 is lowered into the tank A, the tank A is cleaned. The solvent and the like adhering to the tank A are cleaned by spraying high-pressure cleaning water supplied from the high-pressure water generating unit in a desired direction through the spray nozzle.

[0072] Next, as a preparatory step for cleaning the tank isolation valve E, after the cleaning nozzle 101 is raised to the outside of the tank A, air is supplied from the air supply source to one end of the drive cylinder 8. As a result, the nozzle connecting rod 7 and the nozzle body 6 are moved, and the cleaning device 1 is moved into the cleaning chamber 2 from the side thereof.

[0073] Next, in the cleaning device 1 , high-pressure water is supplied from the water supply source to the nozzle unit 5 , and then the high-pressure water is ejected from the nozzle body 6 to clean the solvent and the like adhering to the tank isolation valve E.

[0074] Next, after the cleaning of the tank isolation valve E is completed, the high-pressure water supply from the water supply source is stopped, and then the drive cylinder 8 is moved in the opposite direction to that during cleaning to move the cleaning device 1 out of the side of the cleaning chamber 2.

[0075] In addition, in the tank cleaning device 100 of the present embodiment or the cleaning process of the present embodiment, the cleaning performed using the nozzle unit 5 is to clean the tank isolation valve E from a fixed position. The following structure or process may be adopted: by controlling the operation of the drive cylinder 8, the tank isolation valve E is cleaned while changing the position of the nozzle body 6.

[0076] Specifically, in the cleaning process of the present embodiment, after the movement of the nozzle connecting rod 7 and the nozzle body 6 caused by the driving of the driving cylinder 8 is completed, the cleaning effect of the tank isolation valve E can be confirmed by visual inspection or using a camera, and the front and rear directions can be switched by switching the driving direction of the driving cylinder 8 to clean the parts with poor cleaning effect.

Claims

1. A cleaning device for a tank isolation valve, characterized in that: The cleaning device is used to clean a tank isolation valve of a tank partition installed on a tank, and the cleaning device is fixed between a tank opening of the tank and the tank partition, and comprises: a cleaning chamber disposed between the tank opening and the tank partition; A sealing part connected to the side of the cleaning chamber to seal the cleaning chamber; a nozzle unit for cleaning the tank isolation valve of the tank partition portion from within the cleaning chamber; and A driving cylinder is used to open and close the sealing part. The nozzle unit comprises: a nozzle body that sprays a cleaning fluid; and A nozzle connecting rod, one end of which is fixed to the nozzle body and the other end is fixed to the driving cylinder, The sealing part has a sealing cover, which seals the cleaning chamber and is connected to the nozzle body. When the nozzle unit is not used, the nozzle unit is placed on standby outside the cleaning chamber, and the sealing portion is completely closed.

2. The cleaning device for the tank isolation valve according to claim 1, characterized in that: The sealing portion comprises: a cylindrical flange connected to a side of the cleaning chamber; and A cylindrical auxiliary flange is arranged outside the flange, The nozzle connecting rod is supported inside the flange and the auxiliary flange.

3. The cleaning device for the tank isolation valve according to claim 1, characterized in that: A detection unit is further provided for detecting the position of the nozzle connection rod.

4. The cleaning device for the tank isolation valve according to claim 2, characterized in that: A detection unit is further provided for detecting the position of the nozzle connection rod.

5. A cleaning device, characterized in that: include: Nozzles for cleaning inside the tank; A lifting part that lifts and lowers the cleaning nozzle; as well as A tank isolation valve cleaning device according to any one of claims 1 to 4.

6. A method for cleaning a tank isolation valve in a tank, characterized in that: The cleaning method uses the cleaning device according to claim 5 to clean the tank isolation valve in the tank, comprising: After lowering the cleaning nozzle into the tank, the tank is cleaned; After the cleaning nozzle is raised to the outside of the tank, a cleaning device for the tank isolation valve is moved into the cleaning chamber from a side of the cleaning chamber disposed between the tank opening and the tank partition; a step of cleaning the tank isolation valve using the tank isolation valve cleaning device; and The step of carrying out the cleaning device of the tank isolation valve from the side of the cleaning chamber.

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