CN219082409U

CN219082409U - Improved nuclear power isolation valve structure

Info

Publication number: CN219082409U
Application number: CN202223287613.7U
Authority: CN
Inventors: 赵虎; 王泽超
Original assignee: Jiangsu Huayang Xinsilu Energy Equipment Co ltd
Current assignee: Jiangsu Huayang Xinsilu Energy Equipment Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-26
Anticipated expiration: 2032-12-08

Abstract

The utility model discloses an improved nuclear power isolation valve structure, which relates to the technical field of valve equipment and comprises a supporting plate, wherein the upper surface of the supporting plate is fixedly connected with a sealing box, an isolation valve is arranged in the sealing box, a valve rod of the isolation valve is fixedly connected with a rotating rod, the upper surface of the rotating rod is fixedly connected with a rotating block, the lower surface of the rotating block is fixedly connected with a protective cover, and the lower surface of the protective cover is rotatably connected with the upper surface of the sealing box through a bearing. According to the utility model, maintenance personnel are not required to regularly maintain the isolation valve, when the isolation valve fails to cause liquid leakage, the liquid flows into the connecting cylinder to enable the floating block to float, the floating block pushes the convex block to open the switch in the installation frame, so that the communication terminal is timely communicated with mobile communication of the maintenance personnel, the information of the failure of the isolation valve is timely notified to the maintenance personnel, further, the safety of the nuclear power station is ensured, and the operation is convenient, time-saving and labor-saving.

Description

Improved nuclear power isolation valve structure

Technical Field

The utility model relates to the technical field of valve equipment, in particular to an improved nuclear power isolation valve structure.

Background

With the development of nuclear industry, the requirements of large-scale, high-parameter, high-performance and reliability and safety of nuclear power plant equipment are higher and higher, a nuclear power valve is a large-scale water pressure equipment in a nuclear power plant, is connected with more than 300 systems of the whole nuclear power plant, is a key accessory for safe operation of the nuclear power plant, and is a normally used isolation valve in the nuclear power plant, and the isolation valve belongs to a valve of a switch type and is only in two states of being on or off, and the difference between the isolation valve and the switch valve is that the isolation valve basically has certain requirements on leakage grade.

Because the isolation valve is used in nuclear power, the isolation requirement is extremely high, an maintainer needs to overhaul the valve regularly, and whether the air tightness of the isolation valve is problematic is judged by observing whether liquid leaks around the valve.

However, the valve is overhauled by an overhauling personnel regularly, the operation process is complicated, labor and a large amount of time are required to be spent, and when the isolating valve breaks down and liquid leaks at the valve, the valve cannot be timely notified to the working personnel, so that the safety of the nuclear power station cannot be guaranteed.

Disclosure of Invention

The utility model aims to provide an improved nuclear electric isolation valve structure, which solves the problems that in the background technology, maintenance personnel periodically maintain a valve, the operation process is complicated, labor force is required to be spent, a large amount of time is required to be spent, and when the isolation valve breaks down and liquid leakage occurs at the valve, workers cannot be timely notified, so that the safety of a nuclear power station cannot be guaranteed.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a nuclear electricity isolation valve structure of improvement formula, includes the backup pad, the upper surface fixedly connected with seal box of backup pad, the inside of seal box is provided with the isolation valve, the valve rod fixedly connected with dwang of isolation valve, the upper surface fixedly connected with dwang, the lower surface fixedly connected with safety cover of dwang, the lower surface of safety cover passes through the bearing and rotates with the upper surface of seal box to be connected, the downside of safety cover is provided with sealed sleeve pad with the contact surface of seal box, the equal fixedly connected with connecting pipe in left and right sides of isolation valve, two the one end of connecting pipe all runs through the corresponding one side of seal box inner wall to its outside, two the contact surface of connecting pipe and seal box all is provided with the sealing washer, the lower surface fixedly connected with connecting cylinder of seal box, the lower surface fixedly connected with drain pipe of connecting cylinder, the pipe wall fixedly connected with dwang of drain pipe, the below of seal box is provided with leakproofness detection device.

Preferably, the tightness detection device comprises a connecting cylinder, a connecting rod is fixedly connected to the upper sides of the left side and the right side of the inner wall of the connecting cylinder together, a sliding rod is fixedly connected to the center of the lower surface of the connecting rod, a floating block is connected to the rod wall of the sliding rod in a sliding mode, a plurality of drain holes are formed in the upper surface of the floating block, and a communication device is arranged on the right side of the connecting cylinder.

Preferably, the communication device comprises a mounting frame, the left side of the mounting frame is fixedly connected with the upper part of the right side of the connecting cylinder, the right side of the inner wall of the mounting frame is fixedly connected with a communication terminal, the left side of the communication terminal is provided with a switch, and the left side of the switch is fixedly connected with a connecting plate.

Preferably, the left side fixedly connected with spring of connecting plate, the left side fixedly connected with lug of spring, the connecting cylinder inner wall is located the left side fixedly connected with of lug and bump assorted rubber seal cover.

Preferably, the upper and lower both sides of installing frame inner wall have all been seted up the spacing groove, two the inner wall in spacing groove all sliding connection has the stopper, two the opposite one side of stopper respectively with the corresponding one side fixed connection of lug.

Preferably, the four corners of the lower surface of the supporting plate are fixedly connected with supporting legs.

Preferably, the isolation valve is a low-pressure isolation valve, and the isolation valve is made of CF8 stainless steel.

The utility model has the technical effects and advantages that:

through setting up backup pad, the seal box, the isolation valve, the valve rod, the rotating block, the safety cover, the sealing sleeve pad, the connecting pipe, the sealing washer, the connecting cylinder, the installing frame, the drain pipe, the rotating valve, tightness detection device, thereby can be need not the maintenance personnel periodic to overhaul the isolation valve, when the isolation valve breaks down and leads to liquid leakage, the inside that liquid inflow connecting cylinder makes the floating block float, the floating block promotes the lug and opens the inside switch of installing frame, and then make communication terminal timely and maintenance personnel's mobile communication communicate, inform maintenance personnel with the information that the isolation valve breaks down timely, and then make the safety of nuclear power station obtain guaranteeing, this simple operation, and labour saving and time saving.

Through setting up slide bar, connecting rod, wash port, kicking block to can make the liquid that leaks flow into the below of kicking block from the wash port, and then make the kicking block upwards slide along the slide bar, through setting up communication terminal, switch, connecting plate, spring, lug, thereby can inwards promote the lug under the effect of kicking up the kicking block, and then start communication terminal and inform maintainer, through setting up spacing groove and stopper, thereby can carry out spacingly to the lug, avoid the lug to remove the inside of installing frame.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic cross-sectional elevation view of the present utility model.

Fig. 3 is a schematic cross-sectional front view of the connecting cylinder of the present utility model.

Fig. 4 is an enlarged schematic view of the structure of fig. 3B according to the present utility model.

In the figure: 1. a support plate; 2. a seal box; 3. an isolation valve; 4. a rotating lever; 5. a rotating block; 6. a protective cover; 7. a sealing sleeve gasket; 8. a connecting pipe; 9. support legs; 10. a seal ring; 11. a connecting cylinder; 12. a mounting frame; 13. a drain pipe; 14. a rotary valve; 15. a connecting rod; 16. a slide bar; 17. a drain hole; 18. a floating block; 21. a communication terminal; 22. a switch; 23. a connecting plate; 24. a spring; 25. a bump; 26. a rubber sealing sleeve; 27. a limit groove; 28. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides an improved nuclear power isolation valve structure as shown in figures 1-4, which comprises a supporting plate 1, wherein the upper surface of the supporting plate 1 is fixedly connected with a sealing box 2, an isolation valve 3 is arranged in the sealing box 2, a valve rod of the isolation valve 3 is fixedly connected with a rotating rod 4, the upper surface of the rotating rod 4 is fixedly connected with a rotating block 5, the lower surface of the rotating block 5 is fixedly connected with a protecting cover 6, the lower surface of the protecting cover 6 is rotationally connected with the upper surface of the sealing box 2 through a bearing, the contact surface between the lower side of the protecting cover 6 and the sealing box 2 is provided with a sealing sleeve gasket 7, the left side and the right side of the isolation valve 3 are fixedly connected with connecting pipes 8, one ends of the two connecting pipes 8 penetrate through the corresponding sides of the inner wall of the sealing box 2 to the outside, the contact surfaces of the pipe walls of the two connecting pipes 8 and the sealing box 2 are provided with sealing rings 10, four corners of the lower surface of the supporting plate 1 are fixedly connected with supporting legs 9, the isolation valve 3 is a low-voltage isolation valve, and the isolation valve 3 is made of CF8 stainless steel;

the lower fixed surface of seal box 2 is connected with connecting cylinder 11, the lower fixed surface of connecting cylinder 11 is connected with drain pipe 13, drain pipe 13's pipe wall fixedly connected with rotary valve 14, the below of seal box 2 is provided with leakproofness detection device, can need not the maintenance personnel periodic to overhaul isolation valve 3, when isolation valve 3 breaks down and leads to liquid leakage, the inside that liquid inflow connecting cylinder 11 makes the kicking block 18 float, kicking block 18 promotes lug 25 and opens the inside switch 22 of installing frame 12, and then make communication terminal 21 timely communicate with the removal communication of maintenance personnel, inform the maintenance personnel in time with the information that isolation valve 3 breaks down, and then make the safety of nuclear power station obtain guaranteeing, this operation is comparatively convenient, and labour saving and time saving.

As shown in fig. 3 and 4, the tightness detection device comprises a connecting cylinder 11, wherein the upper sides of the left side and the right side of the inner wall of the connecting cylinder 11 are fixedly connected with a connecting rod 15 together, the center of the lower surface of the connecting rod 15 is fixedly connected with a sliding rod 16, the rod wall of the sliding rod 16 is slidably connected with a floating block 18, the upper surface of the floating block 18 is provided with a plurality of drain holes 17, the right side of the connecting cylinder 11 is provided with a communication device, so that leaked liquid can flow into the lower part of the floating block 18 from the drain holes 17, and then the floating block 18 slides upwards along the sliding rod 16;

the communication device comprises a mounting frame 12, wherein the left side of the mounting frame 12 is fixedly connected with the upper part of the right side of a connecting cylinder 11, the right side of the inner wall of the mounting frame 12 is fixedly connected with a communication terminal 21, the left side of the communication terminal 21 is provided with a switch 22, the left side of the switch 22 is fixedly connected with a connecting plate 23, the left side of the connecting plate 23 is fixedly connected with a spring 24, the left side of the spring 24 is fixedly connected with a lug 25, the left side of the inner wall of the connecting cylinder 11, which is positioned on the lug 25, is fixedly connected with a rubber sealing sleeve 26 matched with the lug 25, can push the lug 25 inwards under the action of a floating block 18, and further starts the communication terminal 21 to inform maintenance personnel;

limiting grooves 27 are formed in the upper side and the lower side of the inner wall of the mounting frame 12, limiting blocks 28 are slidably connected to the inner walls of the two limiting grooves 27, opposite sides of the two limiting blocks 28 are fixedly connected to corresponding sides of the protruding blocks 25 respectively, the protruding blocks 25 can be limited, and the protruding blocks 25 are prevented from moving out of the mounting frame 12.

The working principle of the utility model is as follows: when the isolating valve 3 arranged in the sealing box 2 breaks down, the air tightness is problematic, when liquid leaks, the leaked liquid flows into the sealing box 2 and then enters the connecting cylinder 11, the liquid passes through the drain hole 17, the floating block 18 floats under the limit of the sliding rod 16, when the floating block 18 floats to a certain height, the floating block 18 extrudes the protruding block 25, the protruding block 25 moves rightwards along the limit groove 27 under the limit of the limit block 28, the protruding block 25 pushes the spring 24, the spring 24 obtains elastic potential energy, the spring 24 pushes the connecting plate 23 to move rightwards, the switch 22 is pressed, the communication terminal 21 connected with an external power supply is started, the communication terminal 21 is communicated with mobile communication of an maintainer, the information of the fault occurrence of the isolating valve 3 is timely informed to the maintainer, and the safety of the nuclear power station is ensured, the maintainer is not required to regularly overhaul the isolating valve 3, and the operation is convenient, time-saving and labor-saving.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides an improvement type nuclear power isolation valve structure, includes backup pad (1), its characterized in that: the utility model discloses a sealing device, which is characterized in that a sealing box (2) is fixedly connected to the upper surface of a supporting plate (1), an isolation valve (3) is arranged in the sealing box (2), a rotating rod (4) is fixedly connected to a valve rod of the isolation valve (3), a rotating block (5) is fixedly connected to the upper surface of the rotating rod (4), a protecting cover (6) is fixedly connected to the lower surface of the rotating block (5), the lower surface of the protecting cover (6) is rotatably connected with the upper surface of the sealing box (2) through a bearing, a sealing sleeve gasket (7) is arranged on the contact surface between the lower side of the protecting cover (6) and the sealing box (2), the utility model discloses a sealing device for the sealed box of the electric motor, including sealing box (2), connecting tube (11), connecting tube (13), sealing box, insulating valve (3), connecting tube (8) are all fixedly connected with in the left and right sides of the sealing valve (3), two the one end of connecting tube (8) is all run through corresponding one side of sealing box (2) inner wall to its outside, two the contact surface of the pipe wall of connecting tube (8) and sealing box (2) all is provided with sealing washer (10), lower surface fixedly connected with connecting tube (11) of sealing box (2), lower surface fixedly connected with drain pipe (13) of connecting tube (11), pipe wall fixedly connected with rotary valve (14) of drain pipe (13), the below of sealing box (2) is provided with leakproofness detection device.

2. An improved nuclear power isolation valve structure according to claim 1, wherein: the tightness detection device comprises a connecting cylinder (11), connecting rods (15) are fixedly connected to the upper sides of the left side and the right side of the inner wall of the connecting cylinder (11), sliding rods (16) are fixedly connected to the centers of the lower surfaces of the connecting rods (15), floating blocks (18) are slidably connected to the rod walls of the sliding rods (16), a plurality of drain holes (17) are formed in the upper surfaces of the floating blocks (18), and a communication device is arranged on the right side of the connecting cylinder (11).

3. An improved nuclear power isolation valve structure according to claim 2, wherein: the communication device comprises a mounting frame (12), wherein the left side of the mounting frame (12) is fixedly connected with the upper part of the right side of the connecting cylinder (11), the right side of the inner wall of the mounting frame (12) is fixedly connected with a communication terminal (21), the left side of the communication terminal (21) is provided with a switch (22), and the left side of the switch (22) is fixedly connected with a connecting plate (23).

4. A modified nuclear power isolation valve structure according to claim 3, wherein: the left side fixedly connected with spring (24) of connecting plate (23), the left side fixedly connected with lug (25) of spring (24), the left side fixedly connected with that connecting tube (11) inner wall is located lug (25) is located rubber seal cover (26) of lug (25) assorted.

5. The improved nuclear power isolation valve structure of claim 4, wherein: limiting grooves (27) are formed in the upper side and the lower side of the inner wall of the mounting frame (12), limiting blocks (28) are slidably connected to the inner walls of the limiting grooves (27), and one side, corresponding to the protruding blocks (25), of each limiting block (28) is fixedly connected to the other side.

6. An improved nuclear power isolation valve structure according to claim 1, wherein: four corners of the lower surface of the supporting plate (1) are fixedly connected with supporting legs (9).

7. An improved nuclear power isolation valve structure according to claim 1, wherein: the isolation valve (3) is a low-pressure isolation valve, and the isolation valve (3) is made of CF8 stainless steel.