CN210566380U - Special high-pressure isolating valve for nuclear power - Google Patents
Special high-pressure isolating valve for nuclear power Download PDFInfo
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- CN210566380U CN210566380U CN201920719976.2U CN201920719976U CN210566380U CN 210566380 U CN210566380 U CN 210566380U CN 201920719976 U CN201920719976 U CN 201920719976U CN 210566380 U CN210566380 U CN 210566380U
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Abstract
The utility model provides a special high-pressure isolating valve of nuclear power, this application valve switching device's fixed part is installed at full-sealed support top through the mounting, the valve pocket of valve body is for from centering guide way-free valve pocket, the mounting is installed in full-sealed support bottom through the valve body top, the valve body is installed quick dismantlement circle with the continuous department of full-sealed support, self sealss stuffing box passes through the fastener and fixes in quick dismantlement circle, the dynamic load spacer ring is fixed in self sealss stuffing box through the upper seal seat, the valve rod upper end is fixed and is controlled the rotatory work of valve rod by valve switching device in the valve switching device, the upper seal seat is passed to the valve rod below, the valve rod lower extreme is fixed with the flashboard, the flashboard is through the switching of rotary control isolating. This application disk seat adopts from centering no guide way valve pocket, and seal structure adopts self sealss to pack structural design to supporting dismantlement convenient quick self sealss stuffing box and high strength high thrust valve rod structure.
Description
Technical Field
The utility model relates to a valve field especially relates to a special high pressure isolating valve of nuclear power.
Background
With the development of nuclear industry, the nuclear power plant equipment is large in size, high in parameter, high in performance and reliability, the requirement on safety is higher and higher, a nuclear power valve is a large-scale and wide-area hydraulic device in the nuclear power plant, is connected with more than 300 systems of the whole nuclear power plant and is a key accessory for safe operation of the nuclear power plant, an isolation valve is commonly used in the nuclear power plant, belongs to a valve in a switch type and is only in an on state or an off state, and the isolation valve basically has a requirement on leakage level unlike a switch valve. The requirement on safety is relatively higher than that of a switch valve, a part of the switch valve can generate extremely high pressure, and the other part of the switch valve has higher requirement on opening and closing speed.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a special high-pressure isolating valve for nuclear power, the valve seat of which adopts a self-centering guide-groove-free valve cavity, the sealing structure adopts a self-sealing packing structural design, and a self-sealing packing box and a high-strength high-thrust valve rod structure which are convenient and quick to disassemble are matched, in order to achieve the purpose, the special high-pressure isolating valve for nuclear power comprises a valve opening and closing device, a full-sealing bracket, a quick disassembling ring, a dynamic load spacer ring, an upper sealing seat, a self-sealing packing box, a valve rod, a flashboard and a valve body, wherein the fixed part of the valve opening and closing device is arranged at the top of the full-sealing bracket through a fixing part, the valve cavity of the valve body is a self-centering guide-groove-free valve cavity, the top of the valve body is arranged at the bottom of the full-sealing bracket through a fixing part, the dynamic load spacer ring is fixed in the self-sealing packing box through an upper sealing seat, the upper end of the valve rod is fixed in the valve opening and closing device and controls the valve rod to rotate to work, the upper sealing seat penetrates through the lower portion of the valve rod, the lower end of the valve rod is fixed with the flashboard, and the flashboard is opened and closed in the valve body through a rotary control isolation valve.
The utility model discloses a further improvement, valve switching device includes control motor and supporting limit switch and torque switch for electric switching mechanism, and electric actuator should be equipped with limit switch and torque switch, guaranteeing sufficient moment of torsion or thrust, satisfies the homoenergetic under the various operating modes and opens smoothly or close the valve, and limit switch then plays the moment of torsion protect function with torque switch.
The utility model discloses a further improvement, the valve body adopts S32168III forging for high pressure relief valve body material, and corresponding material is needed to adopt so to this application mainly used high pressure relief valve.
The utility model discloses a further improvement, the valve rod tip passes through plane push-and-pull valve rod for planar structure, and the present structure of valve rod tip all is the button head structure, leans on the flat push-and-pull flashboard of valve rod to realize opening and close, and this application valve rod adopts the big thrust structural design of high strength, adopts plane push-and-pull flashboard to realize opening and close, and the plane is bigger than the effect thrust of button head to the flashboard, and the high thrust of bulk strength is big, can accomplish the valve fast and open and close.
The application relates to a high-pressure isolating valve special for nuclear power, which has the following characteristics:
1) the integral valve seat adopts a self-centering valve cavity design without a guide groove, and the valve cavity is free of a guide groove and adopts a self-centering design, so that the design structure is more simplified, and the integral valve seat is suitable for being used in a high-pressure environment;
2) the valve rod is designed by adopting a high-strength and high-thrust structure, the whole strength and high thrust are achieved, and the valve can be quickly opened and closed;
3) the self-sealing stuffing box structure is fixed through the quick disassembling ring, so that the disassembling is convenient;
4) the integral structure of the high-voltage electric power generation device is reasonable in structure, good in sealing performance, high in opening and closing speed and particularly suitable for being used in a nuclear power high-voltage environment.
Drawings
FIG. 1 is a schematic illustration of the present application;
description of the drawings:
1. a valve opening and closing device; 2. a fully sealed support; 3. rapidly disassembling the ring; 4. a dynamic load spacer ring; 5. an upper seal seat; 6. self-sealing packing box; 7. A valve stem; 8. a shutter plate; 9. a valve body.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
the utility model provides a special high-pressure isolating valve of nuclear power, its disk seat adopt from centering no guide way valve pocket, and seal structure adopts self sealss packing structural design to supporting dismantlement makes things convenient for quick self sealss packing box and high strength high thrust valve rod structure.
As an embodiment of the utility model, the utility model provides a high-pressure isolating valve special for nuclear power, which comprises a valve opening and closing device 1, a full-sealing support 2, a quick-disassembly ring 3, a dynamic load spacer ring 4, an upper sealing seat 5, a self-sealing packing box 6, a valve rod 7, a flashboard 8 and a valve body 9, wherein the fixed part of the valve opening and closing device 1 is arranged at the top of the full-sealing support 2 through a fixing piece, the valve cavity of the valve body 9 is a self-centering non-guide groove valve cavity, the top of the valve body 9 is arranged at the bottom of the full-sealing support 2 through a fixing piece, the quick-disassembly ring 3 is arranged at the joint of the valve body 9 and the full-sealing support 2, the self-sealing packing box 6 is fixed in the quick-disassembly ring 3 through a fastening piece, the dynamic load spacer ring 4 is fixed in the self-sealing packing box 6 through the upper sealing seat 5, the upper, the lower part of the valve rod 7 penetrates through the upper sealing seat 5, the lower end of the valve rod 7 is fixed with a flashboard 8, and the flashboard 8 controls the opening and closing of the isolating valve through rotation in the valve body 9.
As a specific embodiment of the utility model, the utility model provides a special high-pressure isolating valve for nuclear power as shown in figure 1, which comprises a valve opening and closing device 1, a full-sealed support 2, a quick-disassembling ring 3, a dynamic load spacer ring 4, an upper seal seat 5, a self-sealing packing box 6, a valve rod 7, a flashboard 8 and a valve body 9, wherein the valve opening and closing device 1 is an electric opening and closing mechanism which comprises a control motor and a limit switch and a torque switch matched with the electric opening and closing mechanism, the electric execution mechanism is provided with the limit switch and the torque switch, the valve can be opened or closed smoothly under various working conditions under the condition of ensuring enough torque or thrust, the limit switch and the torque switch play a role in over-force moment protection, the fixed part of the valve opening and closing device 1 is arranged at the top of the full-sealed support 2 through a fixing part, the valve cavity of the valve body 9 is a self-centering guide-free groove, the, the valve rod is characterized in that a quick disassembly ring 3 is installed at the joint of the valve body 9 and the full-sealing support 2, the self-sealing stuffing box 6 is fixed in the quick disassembly ring 3 through a fastener, the dynamic load spacer ring 4 is fixed in the self-sealing stuffing box 6 through an upper sealing seat 5, the upper end of the valve rod 7 is fixed in the valve opening and closing device 1, the valve rod 7 is controlled to rotate to work by the valve opening and closing device 1, the lower part of the valve rod 7 penetrates through the upper sealing seat 5, the lower end of the valve rod 7 is fixed with a flashboard 8, the flashboard 8 controls the opening and closing of the isolation valve through rotation in the valve body 9, the end part of the valve rod is a plane structure and is a plane push-pull valve rod, the current structure of the rod head of the valve rod part is a round head structure, the flashboard is pushed and pulled to open and close by a flat valve rod, the whole intensity is high, the thrust is large, and the valve can be opened and closed quickly.
This application the valve body adopts S32168III forging for high pressure relief valve body material, and this application mainly used high pressure relief valve need adopt corresponding material so.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but also to cover any modifications or equivalent changes made in the technical spirit of the present invention, which fall within the scope of the present invention.
Claims (1)
1. The utility model provides a special high-pressure isolating valve of nuclear power, includes valve switching device (1), totally enclosed support (2), dismantles circle (3) fast, dynamic load spacer ring (4), goes up seal receptacle (5), self sealss packing box (6), valve rod (7), flashboard (8) and valve body (9), its characterized in that: the fixed part of the valve opening and closing device (1) is installed at the top of the full-sealing support (2) through a fixing part, the valve cavity of the valve body (9) is a self-centering guide groove-free valve cavity, the top of the valve body (9) is installed at the bottom of the full-sealing support (2) through a fixing part, the joint of the valve body (9) and the full-sealing support (2) is provided with a quick disassembling ring (3), a self-sealing stuffing box (6) is fixed in the quick disassembling ring (3) through a fastening part, a dynamic load spacer ring (4) is fixed in the self-sealing stuffing box (6) through an upper sealing seat (5), the upper end of the valve rod (7) is fixed in the valve opening and closing device (1) and is controlled by the valve opening and closing device (1) to rotate to work, the upper sealing seat (5) is passed below the valve rod (7), the lower end of, the gate plate (8) is controlled to be opened and closed through rotation in the valve body (9) through the isolation valve, the end part of the valve rod (7) is of a plane structure and passes through a plane push-pull valve rod, the valve opening and closing device (1) is an electric opening and closing mechanism and comprises a control motor and a limit switch and a torque switch which are matched, and the valve body (9) is made of a high-pressure safety valve body material and adopts an S32168III forging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719976.2U CN210566380U (en) | 2019-05-20 | 2019-05-20 | Special high-pressure isolating valve for nuclear power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920719976.2U CN210566380U (en) | 2019-05-20 | 2019-05-20 | Special high-pressure isolating valve for nuclear power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566380U true CN210566380U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920719976.2U Active CN210566380U (en) | 2019-05-20 | 2019-05-20 | Special high-pressure isolating valve for nuclear power |
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| CN (1) | CN210566380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159780A (en) * | 2019-05-20 | 2019-08-23 | 江苏中海华核环保有限公司 | A kind of nuclear power special high-pressure isolating valve |
-
2019
- 2019-05-20 CN CN201920719976.2U patent/CN210566380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159780A (en) * | 2019-05-20 | 2019-08-23 | 江苏中海华核环保有限公司 | A kind of nuclear power special high-pressure isolating valve |
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