CN113202931A - Nuclear power plant conventional island valve fault monitoring device - Google Patents
Nuclear power plant conventional island valve fault monitoring device Download PDFInfo
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- CN113202931A CN113202931A CN202110624621.7A CN202110624621A CN113202931A CN 113202931 A CN113202931 A CN 113202931A CN 202110624621 A CN202110624621 A CN 202110624621A CN 113202931 A CN113202931 A CN 113202931A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 61
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims 3
- 239000012530 fluid Substances 0.000 description 41
- 238000007789 sealing Methods 0.000 description 11
- 239000012535 impurity Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/04—Plug, tap, or cock filters filtering elements mounted in or on a faucet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to a conventional island valve fault monitoring device for a nuclear power plant, which comprises a valve body, a valve cover and a valve core, wherein an inlet and an outlet are respectively arranged on two sides inside the valve body, a fixed ring is arranged on the inlet of the valve body, a filtering sieve plate and a monitoring assembly are arranged in the fixed ring, the monitoring assembly comprises a box body, a distance sensor, a support rod, a single chip microcomputer and an alarm, a piston is arranged in the box body, a distance measuring ball is arranged on the right side of the piston and corresponds to the distance sensor, the right end of the support rod transversely penetrates through the top of the box body and is connected with the left side of the piston, the right end of the support rod is connected with the edge of the filtering sieve plate, two ends of an elastic piece are respectively fixedly connected with the top of the box body and the filtering sieve plate, the distance sensor is connected with the single chip microcomputer, and the single chip microcomputer is connected with the alarm. The invention effectively solves the problems that the blockage in the valve of the existing nuclear power plant fails to give an alarm in time, and a worker cannot take corresponding measures in time, so that serious accidents occur, the use requirements of the nuclear power plant cannot be met, and the like.
Description
Technical Field
The invention relates to the technical field of valves of nuclear power plants, in particular to a fault monitoring device for a conventional island valve of a nuclear power plant.
Background
The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.
At present, when the existing valve of the nuclear power plant is used, the valve is blocked, the valve cannot monitor and alarm the fluid in real time, an alarm cannot be given out in time, and a worker cannot take corresponding measures according to the blocking degree generated in the valve, so that serious accidents are caused, and the use requirement of the nuclear power plant cannot be met.
Disclosure of Invention
The invention aims to provide a fault monitoring device for a conventional island valve of a nuclear power plant aiming at the defects of the prior art, and the fault monitoring device effectively solves the problems that the internal part of the conventional nuclear power plant valve is blocked, an alarm cannot be sent out in time, a worker cannot take corresponding measures in time, serious accidents occur, the use requirements of the nuclear power plant cannot be met and the like by the matched design of a valve body, a valve cover, a valve core, a fixed ring, a filtering sieve plate and a monitoring assembly.
The technical scheme adopted by the invention is as follows:
a conventional island valve fault monitoring device of a nuclear power plant comprises a valve body, a valve cover and a valve core, wherein an inlet and an outlet are respectively arranged on two sides inside the valve body, a sealing opening is arranged between the inlet and the outlet, the valve cover is arranged on the top of the valve body, a valve rod connected with threads is arranged on the valve cover, the valve core is arranged at the bottom end of the valve rod and matched with the sealing opening, a circular fixing ring is arranged at the inlet of the valve body, a filtering sieve plate and a plurality of monitoring components which can slide in a reciprocating manner inside the fixing ring are arranged in the fixing ring, each monitoring component comprises a box body, a distance sensor, a supporting rod, a single chip microcomputer and an alarm, the box body is arranged on the inner wall of the fixing ring, a piston connected with the box body in a sliding manner is arranged in the box body, a distance measuring ball is arranged on the right side of the piston, the distance measuring ball corresponds to the distance sensor arranged on the bottom of the box body, and the right end of the supporting rod transversely penetrates through the top of the box body and is fixedly connected with the left side of the piston, the bracing piece right-hand member is connected with the edge fixed who filters the sieve, and the cover is equipped with the elastic component on the bracing piece, the both ends of elastic component respectively with box body top and filter sieve fixed connection, distance sensor and singlechip signal connection, singlechip and the alarm signal connection of setting on the valve body.
Furthermore, the alarm comprises a buzzer and an LED flashing lamp, the buzzer and the LED flashing lamp are both installed on the valve body, and the buzzer and the LED flashing lamp are respectively connected with the output end signal of the controller.
Furthermore, a rotating wheel is arranged on the valve rod.
Furthermore, the elastic part is a return spring, and two ends of the return spring are respectively fixedly connected with the top of the box body and the filter sieve plate.
Furthermore, a plurality of filter holes which are uniformly arranged are arranged on the filter sieve plate.
Furthermore, a plurality of flow guide assemblies are arranged on the peripheral edge of the filtering sieve plate, and are circumferentially arranged by taking the central line of the fixed ring as the center.
Further, the flow guide assembly comprises a left cavity, a right cavity and a middle cavity, compression spring and extrusion spring, left side cavity, right side cavity and middle cavity inlay respectively and locate the neighboring of filtering the sieve, middle cavity and right cavity intercommunication are passed through to the middle part of left side cavity, the inside movable block that is equipped with sliding connection with it of left side cavity, be equipped with the guide block on the top of movable block, be equipped with left rack on the bottom of movable block, the bottom of left side rack is passed through compression spring and is connected with the bottom of left cavity, inside fixed block and the right rack of being equipped with of middle cavity, right rack passes the fixed block, be equipped with the strikeplate on the top of right rack, the bottom of right rack is connected with the bottom of right cavity through extrusion spring, the inside gear that is equipped with of middle cavity, the both sides of gear mesh with left rack and right rack respectively, be equipped with the rotation axis on the middle part of gear, the both ends of rotation axis are fixed respectively on the inner wall of middle cavity.
Furthermore, the section of the guide block is of a right-angled triangle structure.
Furthermore, a groove matched with the impact plate is arranged on the filtering sieve plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the valve is simple in structure and convenient to use, and by means of the matched design of the valve body, the valve cover, the valve core, the fixed ring, the filtering sieve plate and the monitoring assembly, the problems that due to the fact that an alarm cannot be given out in time when the interior of the existing nuclear power plant valve is blocked, workers cannot take corresponding measures in time, serious accidents occur, the use requirements of the nuclear power plant cannot be met and the like are effectively solved.
2. Through mutually supporting of box body and piston, make range finding ball and distance sensor can seal up in the box body, distance sensor real-time supervision range finding ball's position prevents through box body and piston that fluid from causing the influence to the distance sensor measuring result, reduces the interference, ensures the accuracy of distance sensor measuring result.
3. According to the invention, when the interior of the valve is blocked, an alarm can be given in time, peripheral workers can be prompted by the alarm, so that the blockage can be treated in time, and accidents can be effectively avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a first schematic structural view of a retaining ring according to the present invention;
FIG. 3 is a second schematic structural view of the retaining ring of the present invention;
FIG. 4 is a cross-sectional view of a retaining ring of the present invention;
FIG. 5 is a schematic view of the internal structure of the case according to the present invention;
FIG. 6 is a circuit schematic of the present invention;
FIG. 7 is a state diagram of the flow directing assembly of the present invention;
figure 8 is a cross-sectional view of a filter screen panel of the present invention;
FIG. 9 is an enlarged view taken at A in FIG. 8;
in the figure: 1. a rotating wheel; 2. a valve stem; 3. a valve cover; 4. a valve core; 5. a valve body; 6. a buzzer; 7. an LED flashing light; 8. an outlet; 9. sealing the opening; 10. a box body; 11. an inlet; 12. fixing the circular ring; 13. a return spring; 14. filtering the sieve plate; 15. a support bar; 16. a piston; 17. a distance measuring ball; 18. a distance sensor; 19. a filtration pore; 20. an impact plate; 21. a guide block; 22. a moving block; 23. a right rack; 24. a right cavity; 25. a compression spring; 26. a gear; 27. a middle cavity; 28. a compression spring; 29. a rotating shaft; 30. a left cavity; 31. a left rack; 32. and (5) fixing blocks.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 9, the invention provides a conventional island valve failure monitoring device for a nuclear power plant, comprising a valve body 5, a valve cover 3 and a valve core 4, wherein an inlet 11 and an outlet 8 are respectively arranged on two sides inside the valve body 5, a sealing port 9 is arranged between the inlet 11 and the outlet 8, fluid flows in from the inlet 11 inside the valve body 5, flows through the sealing port 9 and is finally discharged through the outlet 8, the valve cover 3 is arranged on the top of the valve body 5, a valve rod 2 connected with threads is arranged on the valve cover 3, the valve core 4 is arranged on the bottom end of the valve rod 2 and is matched with the sealing port 9, the valve rod 2 moves on the valve cover 3 by rotating the valve rod 2, the valve rod 2 drives the valve core 4 to move up and down, so that the valve core 4 opens or closes the sealing port 9 to open or close the valve, a circular fixing ring 12 is arranged on the inlet 11 of the valve body 5, a filtering sieve plate 14 and a plurality of monitoring components which can slide in a reciprocating manner are arranged in the fixing ring 12, the filtering sieve plate 14 has the function of filtering solid particle impurities in fluid, the fluid passes through the filtering sieve plate 14 and impacts the filtering sieve plate 14, the solid particle impurities in the fluid are filtered through the filtering sieve plate 14, the number of the monitoring components is 4, the 4 monitoring components are uniformly distributed in a circle by taking the center of the fixed ring 12 as the circle center, the monitoring components comprise a box body 10, a distance sensor 18, a supporting rod 15, a single chip microcomputer and an alarm, the box body 10 is installed on the inner wall of the fixed ring 12, a piston 16 is arranged in the box body 10, the piston 16 can slide in a reciprocating manner in the box body 10, a distance measuring ball 17 is arranged on the right side of the piston 16, the distance measuring ball 17 corresponds to the distance sensor 18 arranged on the bottom of the box body 10, the distance sensor 18 is started, the position of the distance measuring ball 17 is monitored in real time by using the distance sensor 18, the right end of the supporting rod 15 transversely passes through the top of the box body 10 and is fixedly connected with the left side of the piston 16, the support rod 15 is under the action of external force to drive the piston 16 to move left and right in the box body 10, the right end of the support rod 15 is fixedly connected with the edge of the filtering sieve plate 14, the support rod 15 is sleeved with an elastic piece, two ends of the elastic piece are respectively fixedly connected with the top of the box body 10 and the filtering sieve plate 14, the filtering sieve plate 14 is under the impact action of fluid, the filtering sieve plate 14 slides backwards along the fixed ring 12, the filtering sieve plate 14 overcomes the elasticity of the reset spring 13 to drive the support rod 15 to move backwards, because two ends of the support rod 15 are respectively connected with the filtering sieve plate 14 and the piston 16 arranged in the box body 10, when the support rod 15 moves backwards, the right end of the support rod 15 drives the piston 16 to slide rightwards along the inner wall of the box body 10, the piston 16 drives the distance measuring ball 17 to move towards the direction close to the distance sensor 18, the distance sensor 18 is in signal connection with the single chip microcomputer, and the single chip microcomputer is in signal connection with the alarm arranged on the valve body 5, each distance sensor 18 real-time supervision and the position of the corresponding range finding ball 17 of it and give the singlechip with this signal transmission, the singlechip is through comprehensive calculation, the degree of the inside jam of automated inspection valve, when distance sensor 18 will detect apart from the numerical value and be greater than the threshold value that the singlechip predetermines, the singlechip will carry out the order and send for the alarm, the alarm in time sends out the police dispatch newspaper, the warning suggestion, so that peripheral maintainer can in time overhaul, thereby avoid the emergence of accident, improve the security.
Specifically, the alarm includes bee calling organ 6 and LED flashing light 7, and bee calling organ 6 and LED flashing light 7 are all installed on valve body 5, and bee calling organ 6 and LED flashing light 7 are connected with the output end signal of controller respectively. When the interior of the valve is blocked, fluid is gathered at the inlet 11 in the valve body 5, the fluid passes through the filter sieve plate 14, so that the fluid pressure on two sides of the filter sieve plate 14 is approximately the same, the filter sieve plate 14 is connected with the box body 10 through the return spring 13, the filter sieve plate 14 moves towards the direction of the initial position through the elastic force of the return spring 13, at the moment, the distance sensor 18 monitors the position of the distance measuring ball 17 in real time, the blocking degree in the valve is judged through detecting the position of the distance measuring ball 17, when the valve is used, the return spring 13 moves the filter sieve plate 14 to the approximate initial position, the severe blocking in the valve is proved, the reset spring 13 pushes the filter sieve plate 14 not to move to the initial position, the light blocking in the valve is proved, the single chip sends a starting instruction to the LED flashing lamp 7, LED flashing light 7 glimmers, and if the valve is inside to take place the serious jam, the singlechip will start the order and send buzzer 6, and buzzer 6 sends out the police dispatch newspaper to the peripheral staff of suggestion, this valve has taken place the serious jam, needs in time to clear up.
Specifically, a runner 1 is arranged on the valve rod 2. The valve rod 2 is rotated through the rotating wheel 1, the valve rod 2 drives the valve core 4 fixed on the bottom end of the valve rod to move up and down, so that the sealing port 9 in the valve is sealed or opened, and the valve is closed or opened.
Specifically, the elastic component is a return spring 13, and two ends of the return spring 13 are respectively fixedly connected with the top of the box body 10 and the filter sieve plate 14. When the filtering sieve plate 14 is impacted by fluid in the valve, the filtering sieve plate 14 slides backwards along the fixed circular ring 12, and the filtering sieve plate 14 overcomes the elastic force of the return spring 13 to drive the support rod 15 to move.
Specifically, the filtering sieve plate 14 is provided with a plurality of filtering holes 19 which are uniformly arranged. The particulate impurities in the fluid are filtered by using a plurality of filtering holes 19 on the filtering sieve plate 14.
Specifically, a plurality of flow guide assemblies are arranged on the peripheral edge of the filtering sieve plate 14, and the flow guide assemblies are circumferentially arranged by taking the central line of the fixed ring 12 as the center. Utilize the water conservancy diversion subassembly can effectively be with the fluid drainage to filtering sieve 14 middle part at the outside edge of filtering sieve 14, prevent to filter the gap between sieve 14 and the fixed ring 12 and cause the jam.
Specifically, the flow guiding assembly comprises a left cavity 30, a right cavity 24, a middle cavity 27, a compression spring 25 and an extrusion spring 28, the left cavity 30, the right cavity 24 and the middle cavity 27 are respectively embedded at the peripheral edge of the filtering sieve plate 14, the middle part of the left cavity 30 is communicated with the right cavity 24 through the middle cavity 27, a moving block 22 connected with the left cavity 30 in a sliding manner is arranged in the left cavity 30, a guide block 21 is arranged at the top of the moving block 22, a left rack 31 is arranged at the bottom of the moving block 22, the bottom end of the left rack 31 is connected with the bottom of the left cavity 30 through the compression spring 25, a fixed block 32 and a right rack 23 are arranged in the middle cavity 27, the right rack 23 passes through the fixed block 32, an impact plate 20 is arranged at the top end of the right rack 23, the bottom end of the right rack 23 is connected with the bottom of the right cavity 24 through the extrusion spring 28, a gear 26 is arranged in the middle cavity 27, two sides of the gear 26 are respectively meshed with the left rack 31 and the right rack 23, a rotating shaft 29 is provided at the middle portion of the gear 26, and both ends of the rotating shaft 29 are fixed to the inner wall of the middle chamber 27, respectively. The right cavity 24 is close to the peripheral edge of the filter sieve plate 14, the left cavity 30 is far from the peripheral edge of the filter sieve plate 14, the fluid in the valve body 5 has impact effect on the impact plate 20, so that the impact plate 20 gradually moves towards the direction close to the filtering sieve plate 14, the impact plate 20 drives the left rack 31 to move in the left cavity 30, the left rack 31 overcomes the elastic force of the extrusion spring 28 while moving, furthermore, the left rack 31 drives the gear 26 to rotate in the middle cavity 27, the gear 26 drives the right rack 23 to move upwards, the moving direction of the right rack 23 and the left rack 31 is opposite, the right rack 23 drives the guide block 21 to move upwards through the moving block 22, make the fluid between filter sieve 14 and the fixed ring 12 gap flow towards the middle part of filtering sieve 14 along guide block 21, effectively avoid causing the jam between the fixed ring 12 and the gap of filtering sieve 14, influence the normal removal of filtering sieve 14 in fixed ring 12.
Specifically, the cross section of the guide block 21 is a right triangle structure. The oblique sides of the guide blocks 21 face the middle of the filter screen plate 14, and when fluid contacts the guide blocks 21, the fluid flows along the oblique sides of the guide blocks towards the middle, and the guide blocks 21 have a guide and drainage effect on the fluid on the peripheral edge of the filter screen plate 14.
Specifically, the filter sieve plate 14 is provided with a groove, and the groove is matched with the impact plate 20. The impact plate 20 is impacted by the fluid, and the impact plate 20 moves towards the filter screen plate 14 and is embedded in the groove, so that the flow of the fluid on the filter screen plate 14 is prevented from being influenced.
The working principle of the invention is as follows:
when the valve is used, the distance sensor 18 and the single chip microcomputer are started, the valve core 4 is far away from the sealing port 9, fluid flows in from the inlet 11 inside the valve body 5 and flows through the sealing port 9 to be discharged through the outlet 8, the fluid passes through the filtering sieve plate 14 and impacts the filtering sieve plate on the fluid continuously, the filtering sieve plate 14 is used for filtering solid particle impurities in the fluid, the fluid impacts the fluid continuously, the solid particle impurities adhered to the surface of the fluid can be effectively washed away, the phenomenon that the fixed particle impurities are adhered to the fluid is avoided, blockage is easily caused, and the filtering efficiency and the effect of the filtering sieve plate 14 are better.
The fluid acts on filtering sieve plate 14, filtering sieve plate 14 slides along the inner wall of fixed ring 12, filtering sieve plate 14 overcomes the elasticity of reset spring 13 and drives bracing piece 15 to move towards the right side, and then the right-hand member of bracing piece 15 drives piston 16 to move along the inner wall of box body 10, piston 16 drives range finder ball 17 to move towards the direction of range finder 18, each range finder 18 monitors the position of range finder ball 17 in real time, and send this distance data to the singlechip, the singlechip is through comprehensive calculation, if the distance numerical value that range finder 18 detected is less than when predetermineeing the threshold value, the singlechip does not start the alarm.
If the interior of the valve is blocked, the fluid pressure at the inlet 11 inside the valve body 5 rises, if the interior of the valve is severely blocked, the fluid does not flow through the sealing port 9 of the valve, at this time, the fluid pressure on the left side of the filtering screen plate 14 is slightly greater than the fluid pressure on the right side, the fluid pressures on the two sides of the filtering screen plate 14 are the same, as the filtering screen plate 14 is connected with the box body 10 through the return spring 13, the filtering screen plate 14 moves towards the initial position through the elastic force of the return spring 13, the filtering screen plate 14 returns to be close to the initial position, the support rod 15 also drives the piston 16 to move towards the left, at this time, the distance sensor 18 monitors the position of the distance measuring ball 17 in real time, the filtering screen plate 14 and the distance measuring ball 17 both return to the initial positions, the value detected by the distance sensor 18 is greater than the threshold value preset by the single chip, the single chip sends an execution instruction to the buzzer 6, the buzzer 6 gives an alarm to prompt a maintainer that the valve is seriously blocked and needs to be overhauled in time, so that accidents are avoided; when the valve is slightly blocked, part of the fluid can smoothly flow through the valve, the fluid pressure on the two sides of the filter sieve plate 14 is different (i.e. the fluid pressure on the left side of the filter sieve plate 14 is far greater than the fluid pressure on the right side), at this time, the return spring 13 drives the filter sieve plate 14 to move towards the left, and then the supporting rod 15 drives the piston 16 to move towards the left along the interior of the box body 10, the filtering sieve plate 14 and the distance measuring ball 17 move towards the left respectively, the distance sensor 18 sends the position of the distance measuring ball 17 to the single chip microcomputer, the single chip microcomputer sends an execution instruction to the LED flashing light 7 through comprehensive calculation, the LED flashing light 7 flashes to prompt surrounding workers, slight jam takes place for this valve, needs in time to clear up, and the inside jam degree of automated inspection valve sends relevant police dispatch newspaper to the suggestion staff makes things convenient for the staff in time to handle, avoids causing the emergence of accident.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a conventional island valve failure monitoring device of nuclear power plant, includes valve body, valve gap and case, is equipped with import and export respectively on the inside both sides of valve body, is equipped with the seal port between import and the export, and the valve gap is installed on the valve body top, is equipped with the valve rod with threaded connection on the valve gap, and the case setting cooperatees its characterized in that on the bottom of valve rod and with the seal port: be equipped with circular fixed ring on the import department of valve body, be equipped with in the fixed ring and can be at its inside reciprocating sliding's filtration sieve and a plurality of monitoring subassembly, the monitoring subassembly includes box body, distance sensor, bracing piece, singlechip and alarm, the box body is installed on the inner wall of fixed ring, be equipped with sliding connection's piston with it in the box body, be equipped with the range finding ball on the right side of piston, the range finding ball is corresponding with the distance sensor who sets up on the box body bottom, the bracing piece right-hand member transversely pass the box body top and with piston left side fixed connection, the bracing piece right-hand member with filter the marginal fixed connection of sieve, and the cover is equipped with the elastic component on the bracing piece, the both ends of elastic component respectively with box body top and filtration sieve fixed connection, distance sensor and singlechip signal connection.
2. The nuclear power plant conventional island valve fault monitoring device of claim 1, wherein: the alarm comprises a buzzer and an LED flashing lamp, the buzzer and the LED flashing lamp are both installed on the valve body, and the buzzer and the LED flashing lamp are respectively connected with an output end signal of the controller.
3. The nuclear power plant conventional island valve fault monitoring device of claim 1, wherein: and a rotating wheel is arranged on the valve rod.
4. The nuclear power plant conventional island valve fault monitoring device of claim 1, wherein: the elastic part is a return spring, and two ends of the return spring are fixedly connected with the top of the box body and the filter sieve plate respectively.
5. The nuclear power plant conventional island valve fault monitoring device of claim 1, wherein: the filtering sieve plate is provided with a plurality of filtering holes which are uniformly arranged.
6. The nuclear power plant conventional island valve fault monitoring device of claim 1, wherein: the peripheral edge of the filtering sieve plate is provided with a plurality of flow guide assemblies which are arranged circumferentially by taking the central line of the fixed ring as the center.
7. The nuclear power plant conventional island valve fault monitoring device of claim 6, wherein: the flow guide component comprises a left cavity, a right cavity and a middle cavity, compression spring and extrusion spring, left side cavity, right side cavity and middle cavity inlay respectively and locate the neighboring of filtering the sieve, middle cavity and right cavity intercommunication are passed through to the middle part of left side cavity, the inside movable block that is equipped with sliding connection with it of left side cavity, be equipped with the guide block on the top of movable block, be equipped with left rack on the bottom of movable block, the bottom of left side rack is passed through compression spring and is connected with the bottom of left cavity, inside fixed block and the right rack of being equipped with of middle cavity, right rack passes the fixed block, be equipped with the strikeplate on the top of right rack, the bottom of right rack is connected with the bottom of right cavity through extrusion spring, the inside gear that is equipped with of middle cavity, the both sides of gear mesh with left rack and right rack respectively, be equipped with the rotation axis on the middle part of gear, the both ends of rotation axis are fixed respectively on the inner wall of middle cavity.
8. The nuclear power plant conventional island valve fault monitoring device of claim 7, wherein: the cross section of the guide block is of a right-angled triangle structure.
9. The nuclear power plant conventional island valve fault monitoring device of claim 8, wherein: and the filtering sieve plate is provided with a groove matched with the impact plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624621.7A CN113202931A (en) | 2021-06-04 | 2021-06-04 | Nuclear power plant conventional island valve fault monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110624621.7A CN113202931A (en) | 2021-06-04 | 2021-06-04 | Nuclear power plant conventional island valve fault monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113202931A true CN113202931A (en) | 2021-08-03 |
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ID=77024682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110624621.7A Pending CN113202931A (en) | 2021-06-04 | 2021-06-04 | Nuclear power plant conventional island valve fault monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117267485A (en) * | 2023-11-23 | 2023-12-22 | 靖江市欧亚船用设备制造有限公司 | Valve connecting piece |
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2021
- 2021-06-04 CN CN202110624621.7A patent/CN113202931A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117267485A (en) * | 2023-11-23 | 2023-12-22 | 靖江市欧亚船用设备制造有限公司 | Valve connecting piece |
| CN117267485B (en) * | 2023-11-23 | 2024-02-06 | 靖江市欧亚船用设备制造有限公司 | Valve connecting piece |
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