Special nuclear power valve resistant to extreme environment
By installing external support components and water-cooled connection components on nuclear power-specific valves, the problem of obstructed rotation of butterfly valves in high-temperature environments has been solved, enabling stable operation of valves in extreme environments.
Patent Information
- Application Number
- CN202423025571.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In a nuclear power plant area, butterfly valves may be subject to thermal stress caused by different thermal expansion coefficients of materials in high-temperature environments, which may cause the butterfly plate to be obstructed or stuck.
A nuclear power plant-specific valve designed to withstand extreme environments is constructed by installing external support components on both sides of the valve body to form annular water-cooled pipes. The valve body is cooled by water-cooled connection components, and the support effect is improved by the design of the transverse arc pipe tightly attached to the outer wall of the valve body, thereby enhancing the pressure resistance.
Maintaining valve body stability and operational stability at high temperatures prevents obstruction or jamming, ensuring normal valve operation.
Smart Images
Figure CN223469788U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to valve equipment technical field, specifically is a kind of nuclear power special valve of extreme environment resistance. BACKGROUND
[0002] Sealing butterfly valve is a kind of device that is opened and closed by rotating disc-shaped butterfly plate around fixed shaft in valve body. Butterfly plate rotation angle range is generally 0-90 degrees. When butterfly plate is in the position perpendicular to fluid flow direction, valve is closed, and fluid is cut off. When butterfly plate rotates to the position parallel to fluid flow direction, valve is completely opened, and fluid can pass smoothly. Butterfly valve is also a kind of common valve body installed in nuclear power plant area, but still has the following defects:
[0003] Due to high temperature in nuclear power plant area, when each part of butterfly valve is unevenly heated, thermal stress is generated due to different thermal expansion coefficients of different materials, which may cause rotation of butterfly plate in valve body to be hindered, and even appear to be stuck. SUMMARY
[0004] In view of the above situation, in order to overcome the defects of prior art, the utility model provides a kind of nuclear power special valve of extreme environment resistance, effectively solve the problem that high temperature environment causes influence to valve piece, and may appear rotation is hindered.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of nuclear power special valve of extreme environment resistance, including valve body, the side of the valve body is equipped with inlet pipe, the other side of the valve body is equipped with outlet pipe, and the two sides of the valve body are symmetrically provided with external support assembly;
[0006] External support assembly includes two longitudinal half-ring pipes, two longitudinal half-ring pipes are equidistantly installed with transverse arc pipe between them, the radian of transverse arc pipe is same with the radian of the outer wall of valve body, longitudinal half-ring pipe and transverse arc pipe are tightly attached to the outer wall of valve body, two longitudinal half-ring pipes of the same end of two external support assemblies are combined to form complete annular pipeline, and water cooling connecting assembly is installed between two longitudinal half-ring pipes of the same end of two external support assemblies.
[0007] Preferably, the bottom end of the longitudinal half-ring pipe is closed, and the side of the bottom end of the longitudinal half-ring pipe away from the valve body is provided with a fixed pipe, the top end of the longitudinal half-ring pipe on one of the external support assemblies is provided with a cannula, and the top end of the longitudinal half-ring pipe on the other external support assembly is provided with a slot, the cannula is inserted into the slot, and the outer wall of the cannula is tightly attached to the inner wall of the slot.
[0008] Preferably, the transverse arc pipe is provided with a vertical plate away from one side of the valve body, the vertical plate is installed with a pressing rod equidistantly close to one side of the transverse arc pipe, the pressing rod corresponds to the transverse arc pipe, the transverse arc pipe is fixedly installed with a positioning sleeve close to one side of the vertical plate, and the pressing rod is inserted into the positioning sleeve.
[0009] Preferably, the bottom end of the vertical plate is fixedly installed with a bottom plate, and the bottom plate is symmetrically provided with positioning holes.
[0010] Preferably, the water-cooling connecting assembly comprises two communication boxes symmetrically arranged between the two bottom plates, screw rods are symmetrically installed on the two sides of the communication box, the two screw rods are respectively inserted into the positioning holes at the same end of the two bottom plates, nuts are screw-installed on the outer sides of the screw rods, and the nuts are located on the side of the bottom plate away from the valve body.
[0011] Preferably, the communication box is symmetrically provided with connecting holes close to one side of the valve body, the fixing pipes on the two longitudinal half-ring pipes are inserted into the connecting holes, the outer wall of the fixing pipe is in close contact with the inner wall of the connecting hole, and the communication box is installed with a connecting pipe away from the valve body.
[0012] Compared with the prior art, the utility model has the advantages of:
[0013] In work, the two external support assemblies are installed on the two sides of the valve body, the pipe is inserted into the slot, the two longitudinal half-ring pipes are combined to form a complete ring pipeline, the fixing pipe is inserted into the connecting hole on the communication box, the longitudinal half-ring pipes and the transverse arc pipes are combined to form the water-cooling pipeline outside the valve body, the valve body is conveniently water-cooled, and the stability of the valve body under high temperature is ensured.
[0014] In work, the curvature of the transverse arc pipe is the same as the curvature of the outer wall of the valve body, the transverse arc pipe is in close contact with the outer wall of the valve body after installation, the two longitudinal half-ring pipes are combined to form a complete ring pipeline, the two ring pipelines are respectively clamped on the two sides of the valve body close to the liquid inlet pipe and the liquid outlet pipe, the support effect of the longitudinal half-ring pipe and the transverse arc pipe on the valve body is improved, and the pressure resistance of the valve body is improved.
[0015] In work, the two external support assemblies are combined and installed with the communication box, the end of the pressing rod on the vertical plate is inserted into the positioning sleeve on the transverse arc pipe, the screw rod on the side of the communication box is inserted into the positioning hole on the bottom plate, and the nut is tightened, so that the external support assembly is installed on the outer side of the valve body, the communication box and the longitudinal half-ring pipe are fixed, and installation is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.
[0017] In the drawings:
[0018] Figure 1 A nuclear power special valve structure diagram of the utility model in an extreme environment is shown schematically;
[0019] Figure 2 The external support assembly structure diagram of the utility model is shown schematically;
[0020] Figure 3 The slot structure diagram of the utility model is shown schematically;
[0021] Figure 4 The cannula structure diagram of the utility model is shown schematically;
[0022] Figure 5 The water cooling connecting assembly structure diagram of the utility model is shown schematically;
[0023] Figure 6 The transverse arc pipe and vertical plate connecting structure diagram of the utility model is shown schematically.
[0024] In the drawings: 1, valve body; 2, liquid inlet pipe; 3, liquid outlet pipe; 4, external support assembly; 401, longitudinal half ring pipe; 402, transverse arc pipe; 403, vertical plate; 404, pressure rod; 405, bottom plate; 406, positioning hole; 407, slot; 408, cannula; 409, fixed pipe; 410, positioning sleeve; 5, water cooling connecting assembly; 501, communication box; 502, connecting pipe; 503, connecting hole; 504, screw rod; 505, nut. DETAILED DESCRIPTION
[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0026] By Figures 1-5 The utility model relates to a nuclear power special valve in an extreme environment, which comprises a valve body 1, a liquid inlet pipe 2 is installed on one side of the valve body 1, a liquid outlet pipe 3 is installed on the other side of the valve body 1, and external support assemblies 4 are symmetrically arranged on both sides of the valve body 1.
[0027] The external support assembly 4 comprises two longitudinal half ring pipes 401, a transverse arc pipe 402 is installed equidistantly between the two longitudinal half ring pipes 401, the curvature of the transverse arc pipe 402 is the same as the curvature of the outer wall of the valve body 1, the longitudinal half ring pipe 401 and the transverse arc pipe 402 are in close contact with the outer wall of the valve body 1, the two longitudinal half ring pipes 401 at the same end of the two external support assemblies 4 are combined to form a complete annular pipe, a water cooling connecting assembly 5 is installed between the two longitudinal half ring pipes 401 at the same end of the two external support assemblies 4, the bottom end of the longitudinal half ring pipe 401 is closed, a fixed pipe 409 is installed on the side of the bottom end of the longitudinal half ring pipe 401 away from the valve body 1, the top end of the longitudinal half ring pipe 401 on one of the external support assemblies 4 is provided with a plug pipe 408, the top end of the longitudinal half ring pipe 401 on the other external support assembly 4 is provided with a plug slot 407, the plug pipe 408 is inserted into the plug slot 407, and the outer wall of the plug pipe 408 is in close contact with the inner wall of the plug slot 407, the vertical plate 403 is provided on the side of the transverse arc pipe 402 away from the valve body 1, the pressure rod 404 is installed equidistantly on the side of the vertical plate 403 close to the transverse arc pipe 402, the pressure rod 404 corresponds to the transverse arc pipe 402 one by one, the positioning sleeve 410 is fixedly installed on the side of the transverse arc pipe 402 close to the vertical plate 403, the pressure rod 404 is inserted into the positioning sleeve 410, the bottom plate 405 is fixedly installed on the bottom end of the vertical plate 403, the positioning holes 406 are symmetrically formed on the bottom plate 405, the curvature of the transverse arc pipe 402 is the same as the curvature of the outer wall of the valve body 1, after installation, the transverse arc pipe 402 is in close contact with the outer wall of the valve body 1, and the two longitudinal half ring pipes 401 at the same end are combined to form a complete annular pipe, the two annular pipes are respectively clamped on the two sides of the valve body 1 close to the liquid inlet pipe 2 and the liquid outlet pipe 3, the supporting effect of the longitudinal half ring pipe 401 and the transverse arc pipe 402 on the valve body 1 is improved, and the pressure resistance of the valve body 1 is improved.
[0028] The water cooling connecting assembly 5 comprises two communication boxes 501 symmetrically arranged between the two bottom plates 405, screw rods 504 symmetrically arranged on the two sides of the communication boxes 501, the two screw rods 504 respectively inserted into the positioning holes 406 at the same end of the two bottom plates 405, nuts 505 threadedly arranged on the outer sides of the screw rods 504, the nuts 505 located at the side of the bottom plate 405 away from the valve body 1, and the two external supporting assemblies 4 combined and the communication boxes 501 arranged. After that, the end of the pressing rod 404 on the vertical plate 403 is inserted into the positioning sleeve 410 on the horizontal arc pipe 402, the screw rods 504 on the side of the communication box 501 are inserted into the positioning holes 406 on the bottom plate 405, and the nuts 505 are tightened, so that the external supporting assembly 4 is arranged on the outer side of the valve body 1, the communication box 501 is fixed with the longitudinal semi-ring pipe 401, and the valve body 1 is conveniently arranged. The side of the communication box 501 close to the valve body 1 is symmetrically provided with a connecting hole 503, the fixing pipes 409 on the two longitudinal semi-ring pipes 401 are inserted into the connecting hole 503, and the outer wall of the fixing pipe 409 is tightly attached to the inner wall of the connecting hole 503. The side of the communication box 501 away from the valve body 1 is provided with a connecting pipe 502. The two external supporting assemblies 4 are respectively arranged on the two sides of the valve body 1, so that the insertion pipe 408 is inserted into the insertion slot 407, the two longitudinal semi-ring pipes 401 are combined to form a complete ring-shaped pipeline, and then the fixing pipe 409 is inserted into the connecting hole 503 on the communication box 501, so that each longitudinal semi-ring pipe 401 and each horizontal arc pipe 402 are combined to form a water cooling pipeline on the outer side of the valve body 1, the valve body 1 is conveniently water-cooled, and the stability of the valve body 1 under high temperature is ensured.
[0029] Working principle: when the valve body 1 is installed in the nuclear power plant area, two external supporting assemblies 4 are symmetrically arranged on the two sides of the valve body 1, so that the longitudinal semi-ring pipe 401 and the horizontal arc pipe 402 between the two longitudinal semi-ring pipes 401 are tightly attached to the outer wall of the valve body 1, the insertion pipe 408 is inserted into the insertion slot 407, the two longitudinal semi-ring pipes 401 on the same side of the two external supporting assemblies 4 are combined to form a complete ring-shaped pipeline, and the two ring-shaped pipelines are respectively arranged on the two sides of the valve body 1 close to the liquid inlet pipe 2 and the liquid outlet pipe 3, so that the supporting effect of the longitudinal semi-ring pipe 401 and the horizontal arc pipe 402 on the valve body 1 is improved, and the pressure resistance of the valve body 1 is improved.
[0030] Subsequently, the communication box 501 is installed on the side of the two ring pipes away from each other, so that the two fixed pipes 409 are inserted into the two connecting holes 503, and then the vertical plates 403 are arranged on both sides of the valve body 1, so that the pressing rods 404 on the vertical plates 403 are inserted into the positioning sleeves 410 on the horizontal arc pipes 402. At this time, the screw rods 504 on the side of the communication box 501 are inserted into the positioning holes 406 on the bottom plate 405, and then the nuts 505 are tightened, so as to fix the longitudinal half-ring pipes 401 and the horizontal arc pipes 402 on the outside of the valve body 1, and connect the communication box 501 with the longitudinal half-ring pipes 401. Subsequently, the cooling water tank is installed between the two connecting pipes 502, so that the two ports of the cooling water tank are connected with the two connecting pipes 502 respectively. The pump body in the cooling water tank is opened, so that the cooling water continuously flows through the longitudinal half-ring pipes 401 and the horizontal arc pipes 402, thereby water-cooling the valve body 1, and ensuring the stability of the valve body 1 under high temperature.
Claims
1. A valve for nuclear power plants, resistant to extreme environments, comprising a valve body (1), characterized in that: One side of the valve body (1) is provided with an inlet pipe (2), the other side of the valve body (1) is provided with an outlet pipe (3), and the two sides of the valve body (1) are symmetrically provided with external support assemblies (4); The external support assembly (4) comprises two longitudinal half-ring pipes (401), two longitudinal half-ring pipes (401) are equidistantly arranged between the two longitudinal half-ring pipes (401), the curvature of the transverse arc pipe (402) is the same as the curvature of the outer wall of the valve body (1), the longitudinal half-ring pipe (401) and the transverse arc pipe (402) are tightly attached to the outer wall of the valve body (1), and the two longitudinal half-ring pipes (401) at the same end of the two external support assemblies (4) are combined to form a complete annular pipe, and the two longitudinal half-ring pipes (401) at the same end of the two external support assemblies (4) are provided with a water-cooled connecting assembly (5).
2. The valve for nuclear power plant in extreme environment according to claim 1, characterized in that: The bottom end of the longitudinal half-ring pipe (401) is closed, the bottom end of the longitudinal half-ring pipe (401) is provided with a fixed pipe (409) away from one side of the valve body (1), one of the longitudinal half-ring pipes (401) on one of the external support assemblies (4) is provided with a pipe (408), and the other longitudinal half-ring pipe (401) on the other external support assembly (4) is provided with a slot (407), the pipe (408) is inserted into the slot (407), and the outer wall of the pipe (408) is tightly attached to the inner wall of the slot (407).
3. The valve for nuclear power plant in extreme environment according to claim 1, characterized in that: The side of the transverse arc pipe (402) away from the valve body (1) is provided with a vertical plate (403), the side of the vertical plate (403) close to the transverse arc pipe (402) is equidistantly provided with a pressing rod (404), the pressing rod (404) corresponds to the transverse arc pipe (402), and the side of the transverse arc pipe (402) close to the vertical plate (403) is fixedly provided with a positioning sleeve (410).
4. A valve for nuclear power plants in extreme environments according to claim 3, characterized in that: The bottom end of the vertical plate (403) is fixedly provided with a bottom plate (405), and the bottom plate (405) is symmetrically provided with a positioning hole (406).
5. A valve for nuclear power plants in extreme environments according to claim 4, characterized in that: The water-cooled connecting assembly (5) comprises two communication boxes (501) symmetrically arranged between the two bottom plates (405), the two sides of the communication box (501) are symmetrically provided with a screw rod (504), the two screw rods (504) are respectively inserted into the positioning holes (406) at the same end of the two bottom plates (405), the outer side of the screw rod (504) is threadedly provided with a nut (505), and the nut (505) is located on the side of the bottom plate (405) away from the valve body (1).
6. A nuclear power plant special valve resistant to extreme environments according to claim 5, characterized in that: The side of the communication box (501) close to the valve body (1) is symmetrically provided with a connecting hole (503), the fixed pipe (409) on the two longitudinal half-ring pipes (401) is inserted into the connecting hole (503), and the outer wall of the fixed pipe (409) is tightly attached to the inner wall of the connecting hole (503), and the side of the communication box (501) away from the valve body (1) is provided with a connecting pipe (502).