A nuclear radiation environment underwater floating cylinder adjusting device

Abstract

The application discloses a kind of nuclear radiation environment underwater floating air cylinder adjusting device, comprising: underwater sealed container, including cylinder and sealing cover;Gas control box system, including gas source processing unit, solenoid valve, air pipe and shutoff valve;Gas path system, including proportional throttle valve, electrical proportional valve, proportional pressure valve and air pipe;Underwater sealed joint assembly, including air inlet sealed joint, air outlet sealed joint and cable sealed joint.Compared with prior art, the advantages are that: the application can be carried out underwater in nuclear radiation environment, realize the advantages of long-distance control, high stability, convenient connection, good sealing performance and the like in deep water environment, improve the applicability of long-distance underwater pneumatic control of the device.The application adopts miniaturization design, is flexible and convenient, and is beneficial to on-site mobile storage operation.The application is light in weight and easy to operate: it can be carried and operated by a single person and put into water.

Description

Technical Field

[0001] This invention relates to the field of nuclear facility operation and maintenance technology, specifically to an underwater floating cylinder adjustment device for nuclear radiation environments. Background Technology

[0002] With the operation of nuclear power plants, in-service maintenance has become a major task, and underwater maintenance is one of the most difficult and important tasks within in-service maintenance. Underwater grinding equipment has become an essential piece of equipment for underwater maintenance.

[0003] Underwater pneumatic actuators can operate underwater. However, they have a drawback: limited control distance, especially for air pressure control; and flow regulation control over long distances can become unstable. Therefore, a short-range control system for underwater pneumatic actuators is essential. Underwater pneumatic actuators require an underwater floating cylinder adjustment device for control.

[0004] The underwater floating cylinder adjustment device needs to have sufficient watertightness to meet the working requirements of a water depth of 10 to 20 meters in the power plant pool; the air control box needs to be lightweight and easy to manually place; the air control box should be compact, but traditional underwater floating cylinder adjustment devices do not meet the above requirements.

[0005] To address the aforementioned issues, we propose an underwater floating cylinder adjustment device for nuclear radiation environments. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the above-mentioned technical difficulties and provide an underwater floating cylinder adjustment device for nuclear radiation environment. It is matched with an underwater pneumatic grinding device to perform short-range pneumatic control of the pneumatic motor and floating cylinder. It has sufficient water tightness to meet the working requirements of power plant pools with a water depth of 10 to 20 meters. The pneumatic control box needs to be lightweight and easy to be manually placed. The pneumatic control box should also be compact.

[0007] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0008] An underwater floating cylinder adjustment device for nuclear radiation environment includes:

[0009] An underwater sealed container includes a cylindrical body and a sealing cap; one end of the cylindrical body is closed, and the other end is sealed by the sealing cap;

[0010] The gas supply and control box system includes a gas source processing unit, a solenoid valve, a gas pipe, and a shut-off valve; the solenoid valve is installed on the gas source processing unit, and a gas pipe is connected to the inlet and outlet of the gas pipe respectively. A shut-off valve is connected to the middle of one of the gas pipes. The gas source processing unit is installed and fixed on the inner wall of the sealing cover.

[0011] The pneumatic system includes a proportional throttle valve, an electro-proportional valve, a proportional pressure valve, and a pneumatic tube; the proportional throttle valve, the proportional pressure valve, and the solenoid valve are connected in series via a pneumatic tube, and the pneumatic throttle valve is connected to the inlet of the proportional throttle valve via a pneumatic tube, and the electro-proportional valve is connected to the solenoid valve via a pneumatic tube, and the electro-proportional valve is connected to the inlet of the electro-proportional valve via a pneumatic tube; the proportional throttle valve, the electro-proportional valve, and the proportional pressure valve are respectively installed and fixed on the inner wall of the sealing cover.

[0012] The underwater sealing joint assembly includes an air inlet sealing joint, an air outlet sealing joint, and a cable sealing joint; the ends of the air pipe connected to the air inlet of the proportional throttle valve and the air pipe connected to the air inlet of the electric proportional valve are respectively connected to the air inlet sealing joint, and the ends of the two air pipes connected to the air outlet of the solenoid valve are respectively connected to the air outlet sealing joint; the air inlet sealing joint, the air outlet sealing joint, and the cable sealing joint are respectively embedded in the outer wall of the cylinder.

[0013] Furthermore, the air tube is connected to the solenoid valve via a quick-connect fitting, and the other end of the air tube is connected to a through-plate quick-connect fitting via a quick-connect fitting, which is connected to an inlet sealing fitting or an outlet sealing fitting.

[0014] Furthermore, the ends of the air pipe connected to the air inlet of the proportional throttle valve and the air pipe connected to the solenoid valve are connected to the same air distribution connector, and the air pipe is connected to the air distribution connector through a through-plate quick-connect connector.

[0015] The advantages of this invention compared to the prior art are:

[0016] 1. This invention can be carried out underwater in a nuclear radiation environment, achieving advantages such as precise remote control, high stability, convenient connection, and good sealing performance in deep water environments, thus improving the applicability of the device for remote underwater pneumatic control.

[0017] 2. This invention adopts a miniaturized design, which is flexible and convenient, and facilitates on-site moving and storage operations.

[0018] 3. This invention has a wide range of applications: it is not limited to underwater pneumatic grinding devices, but is also applicable to other underwater pneumatically driven control equipment.

[0019] 4. The present invention provides precise and reliable stability control: it employs underwater short-range pneumatic control equipment.

[0020] 5. This invention is lightweight and easy to operate: it can be carried and operated by a single person and placed in water. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 1 .

[0023] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 .

[0024] Figure 4 This is a schematic diagram of the gas supply control box system of the present invention.

[0025] As shown in the figure: 1. Cylinder; 2. Sealing cap; 3. Source processing unit; 4. Solenoid valve; 5. Gas pipe; 6. Shut-off valve; 7. Proportional throttle valve; 8. Electro-proportional valve; 9. Proportional pressure valve; 10. Inlet sealing joint; 11. Outlet sealing joint; 12. Cable sealing joint; 13. Quick-connect joint; 14. Through-plate quick-connect joint; 15. Gas distributor joint; 16. Lifting ring; 17. Support leg. Detailed Implementation

[0026] In the description of this invention, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0027] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings.

[0028] An underwater floating cylinder adjustment device for nuclear radiation environment includes:

[0029] Underwater sealed containers, such as Figure 1As shown, the device includes a cylindrical body 1 and a sealing cap 2. The cylindrical body 1 adopts a cylindrical structure, using standard tubular profiles, supplemented with flat end caps and flat flanges. The pipe diameter is 219×2.77x250mm. One end of the cylindrical body 1 is closed, and the other end is sealed by the sealing cap 2, making it suitable for deep-water environments. An O-ring is provided at the connection between the cylindrical body 1 and the sealing cap 2 to ensure a good seal. The O-ring is made of EPDM and can be used in irradiated environments. Lifting rings 16 are fixed to the top of the cylindrical body 1 and the top of the sealing cap 2, respectively. Support feet 17 are fixed to the bottom of the cylindrical body 1 for easy rope hoisting and underwater deployment. The weight of the cylindrical body 1 is 15kg when it is a stainless steel container and 8kg when it is an aluminum alloy container, allowing for manual deployment by the operator.

[0030] The air supply and control box system includes an air source processing unit 3, a solenoid valve 4, air pipes 5, and a shut-off valve 6. The solenoid valve 4 is installed on the air source processing unit 3, and air pipes 5 are connected to the air inlet and outlet respectively. The shut-off valve 6 is connected to the middle of one of the air pipes 5. The air source processing unit 3 is installed and fixed on the inner wall of the sealing cover 2. It can effectively filter air impurities.

[0031] The pneumatic system includes a proportional throttle valve 7, an electro-proportional valve 8, a proportional pressure valve 9, and an air pipe 5. The proportional throttle valve 7, proportional pressure valve 9, and solenoid valve 4 are connected in series via the air pipe 5, and the air pipe 5 is connected to the air inlet of the proportional throttle valve 7. The electro-proportional valve 8 and solenoid valve 4 are connected via the air pipe 5, and the air pipe 5 is connected to the air inlet of the electro-proportional valve 8. The proportional throttle valve 7, electro-proportional valve 8, and proportional pressure valve 9 are respectively mounted and fixed on the inner wall of the sealing cover 2. The pneumatic system has a floating feedback function, which allows for force adjustment of the pneumatic motor; it allows for flexible inflation and deflation. The electro-proportional valve 8 can adjust the inflation speed, and the proportional pressure valve 9 can adjust the inflation pressure, effectively regulating the frequency and output force of the floating cylinder.

[0032] The underwater sealing joint assembly includes an air inlet sealing joint 10, an air outlet sealing joint 11, and a cable sealing joint 12. The ends of the air pipe 5 connected to the air inlet of the proportional throttle valve 7 and the air pipe 5 connected to the air inlet of the electro-proportional valve 8 are respectively connected to the air inlet sealing joint 10. The ends of the two air pipes 5 connected to the air outlet of the solenoid valve 4 are respectively connected to the air outlet sealing joint 11. The air inlet sealing joint 10, the air outlet sealing joint 11, and the cable sealing joint 12 are respectively embedded in the outer wall of the cylinder 1. Installation is convenient and effectively ensures the sealing of the underwater air passages and cables.

[0033] It is worth mentioning that the air pipe 5 is connected to the solenoid valve 4 via a quick-connect fitting 13. The other end of the air pipe 5 is connected to a through-plate quick-connect fitting 14 via the quick-connect fitting 13. The through-plate quick-connect fitting 14 is connected to the inlet sealing fitting 10 or the outlet sealing fitting 11. The ends of the air pipe 5 connected to the inlet of the proportional throttle valve 7 and the air pipe 5 connected to the solenoid valve 4 are both connected to the same air distributor 15. The air pipe 5 is connected to the air distributor 15 via the through-plate quick-connect fitting 14.

[0034] In a specific implementation of this invention: the proportional pressure valve 9, proportional throttle valve 7, electro-proportional valve 8, and solenoid valve 4, along with each air pipe 5 and cable, are all housed within a narrow cylindrical body 1. The underwater sealing joint assembly is connected to the onshore air supply and control box via pipelines. During use, the air source is more stable, enabling more precise short-distance flow regulation control. The proportional pressure valve 9 and proportional throttle valve 7 control the speed and torque of the pneumatic motor, thereby controlling the grinding speed and force; the electro-proportional valve 8 controls the grinding pressure under the floating cylinder; and the solenoid valve 4 controls the start and stop of the pneumatic motor and the floating cylinder.

[0035] The upper part of cylinder 1 has compressed air inlet and outlet to provide air supply for the pneumatic control box, and there is also a Glenn cable connector to ensure the sealing of the power supply and signal multi-core cable. The side of the container has two control air lines connected to the pneumatic grinding device, which controls the floating cylinder and pneumatic motor. The sealed pipe joints are installed on the side plate of the container.

[0036] The present invention and its embodiments have been described above, and this description is not restrictive. If those skilled in the art are inspired by this description and design similar embodiments without departing from the spirit of the invention, such embodiments should fall within the protection scope of the present invention.

Claims

1. A floating cylinder adjustment device for nuclear radiation environment, characterized in that, include: An underwater sealed container includes a cylindrical body (1) and a sealing cap (2); one end of the cylindrical body (1) is closed, and the other end is sealed by the sealing cap (2); The gas supply control box system includes a gas source processing unit (3), a solenoid valve (4), a gas pipe (5), and a shut-off valve (6); the solenoid valve (4) is installed on the gas source processing unit (3), and a gas pipe (5) is connected to the inlet and outlet respectively. A shut-off valve (6) is connected to the middle of one gas pipe (5). The gas source processing unit (3) is installed and fixed on the inner wall of the sealing cover (2). The pneumatic system includes a proportional throttle valve (7), an electric proportional valve (8), a proportional pressure valve (9), and an air pipe (5); the proportional throttle valve (7), the proportional pressure valve (9), and the solenoid valve (4) are connected in series through the air pipe (5), and the air pipe (5) is connected to the air inlet of the proportional throttle valve (7); the electric proportional valve (8) and the solenoid valve (4) are connected through the air pipe (5), and the air pipe (5) is connected to the air inlet of the electric proportional valve (8); the proportional throttle valve (7), the electric proportional valve (8), and the proportional pressure valve (9) are respectively installed and fixed on the inner wall of the sealing cover (2); The underwater sealing joint assembly includes an air inlet sealing joint (10), an air outlet sealing joint (11), and a cable sealing joint (12); the ends of the air pipe (5) connected to the air inlet of the proportional throttle valve (7) and the air pipe (5) connected to the air inlet of the electric proportional valve (8) are respectively connected to the air inlet sealing joint (10), and the ends of the two air pipes (5) connected to the air outlet of the solenoid valve (4) are respectively connected to the air outlet sealing joint (11). The air inlet sealing joint (10), the air outlet sealing joint (11), and the cable sealing joint (12) are respectively embedded in the outer wall of the cylinder (1).

2. The underwater floating cylinder adjustment device for nuclear radiation environment according to claim 1, characterized in that: The air pipe (5) is connected to the solenoid valve (4) via a quick-connect connector (13). The other end of the air pipe (5) is connected to a through-plate quick-connect connector (14) via the quick-connect connector (13). The through-plate quick-connect connector (14) is connected to the inlet sealing connector (10) or the outlet sealing connector (11).

3. The underwater floating cylinder adjustment device for nuclear radiation environment according to claim 2, characterized in that: The ends of the air pipe (5) connected to the air inlet of the proportional throttle valve (7) and the air pipe (5) connected to the solenoid valve (4) are connected to the same air distribution connector (15). The air pipe (5) is connected to the air distribution connector (15) through a through-plate quick-connect connector (14).

4. The underwater floating cylinder adjustment device for nuclear radiation environment according to claim 1, characterized in that: The cylinder (1) has a cylindrical structure and an O-ring is provided at the connection with the sealing cover (2).

5. The underwater floating cylinder adjustment device for nuclear radiation environment according to claim 4, characterized in that: The top of the cylinder (1) and the top of the sealing cover (2) are respectively fixed with lifting rings (16).

6. The underwater floating cylinder adjustment device for nuclear radiation environment according to claim 4, characterized in that: The bottom of the cylinder (1) is fixed with a support foot (17).

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