CN103759062B - Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve - Google Patents
Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve Download PDFInfo
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- CN103759062B CN103759062B CN201310726099.9A CN201310726099A CN103759062B CN 103759062 B CN103759062 B CN 103759062B CN 201310726099 A CN201310726099 A CN 201310726099A CN 103759062 B CN103759062 B CN 103759062B
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
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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
Abstract
Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve, including magnetic conductive board, connection backing plate, connecting plate, static iron core, signal pad, signal lever, signal base plate, signal positioning pad, signal body, tongue tube, little housing, upper cover, permanent magnet.Using between little housing and main valve housing and threaded, junction uses argon arc seal weld.Little housing is fixed on the static iron core of main valve with its bottom, is provided with signal lever in little housing, and one end of signal lever is connected with main valve plunger, and the other end is provided with permanent magnet, for triggering the tongue tube outside housing.Two signal bodies it are provided with, 3 tongue tubes of embedding on each signal body outside little housing.By signal adjusting pad, the tongue tube in two signal bodies is respectively placed in valve opening position and the pass valve position of permanent magnet on signal lever.Present invention employs advanced person magnetic transmission technology and multi-point structure, safe and reliable, volume is little, lightweight, high corrosion-resistant, high radioresistance.
Description
Technical field
The present invention relates to electromagnetic driven stop valve technology, particularly relate to multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve.
Background technology
Electromagnetic driven stop valve is a kind of important pipeline fittings being widely used in the pipe-line systems such as nuclear power field, petrochemical industry and field of metallurgy and control system, with the connection of its control piper medium, blocks or commutates.Electromagnetic driven stop valve is compared with other classification valve, its great advantage is exactly without leaking outside, and all of moving component is all enclosed in pressure-bearing shell by it, while ensureing without leaking outside, also bring and cannot the open and close position of spool is directly fed back to outside pressure-bearing shell, it is impossible to monitor real valve position.Development along with science and technology, raising and the electromagnetic driven stop valve application site importance in systems of modernization control level strengthen, the electromagnetic driven stop valve used in some important field and occasion necessarily requires valve position exports (as CAP1400 nuclear power generating sets heap item is vented electromagnetic driven stop valve) exactly, to realize the true monitoring to valve position and to realize whole electromagnetic driven stop valve remotely controlling, therefore work out a kind of technology that can truly feed back electromagnetic driven stop valve valve position and be very important.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve is provided, this valve do not change tradition electromagnetic driven stop valve without the advantage that leaks outside in the case of, there is provided out a kind of real multi-point valve position signal, reliably and securely to realize the monitoring to whole electromagnetic driven stop valve valve position state.It is also contemplated that at the aspect such as structure, selection simultaneously and meet high temperature, high-pressure medium condition；Meet anti-vibration, impact, seismic condition；Meet high humidity, high heat, high radiation and there is reactor loss of-coolant accident (LOCA) operating mode (LOCA) and pipe breakage accident conditions (MSLB) condition of certain external pressure.
The technical scheme is that
Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve, including magnetic conductive board, the second connection backing plate, clamp nut, connecting plate, static iron core, secondary signal pad, signal lever, signal base plate, signal positioning pad, signal body, tongue tube, nut, little housing, the first signal pad, upper cover, the first connection backing plate, permanent magnet.Using between described little housing and main valve housing and threaded, with the needs of proof strength, junction uses argon arc seal weld, to ensure the needs sealed, it is ensured that high-temperature high-pressure medium nothing in pressure-bearing shell leaks outside.Little housing is fixed on the static iron core of main valve with its bottom, is provided with signal lever in little housing, and one end of signal lever is connected with main valve plunger, and the other end is provided with permanent magnet, for triggering the tongue tube outside housing.Being provided with two signal bodies outside described little housing, 3 tongue tubes of embedding on each signal body, to realize multi-point triggering, it is ensured that the safety and reliability of signal output.By signal adjusting pad, the tongue tube in two signal bodies is respectively placed in valve opening position and the pass valve position of permanent magnet on signal lever, it is ensured that different dry reed pipe is triggered by signal lever in valve opening and two positions of valve, pass.Valve position signal output device uses the safeguard structure of electromagnetic driven stop valve body in terms of degree of protection, it is made up of little housing, magnetic conductive board, connecting plate, upper cover, it is provided with seal, it is ensured that its degree of protection under high temperature, high-pressure medium condition and the environmental condition such as high humidity, Gao Re and LOCA is up to IP68 (the most waterproof) between each part.Described composition multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve.
Stainless steel cage rolling technology is used, it is ensured that do not fall off under moving condition between above-mentioned permanent magnet and signal lever.Tongue tube uses epoxy resin low temperature embedding, intermediate temperature setting technique with the encapsulation of signal body, makes tongue tube be firmly secured in signal body, it is ensured that under the conditions of vibration, earthquake etc., appearance intensity and internal inert gas do not leak, and then realize long-life target.Lead-in wire crimps form with being connected by specific cards set between tongue tube, it is ensured that firm and reliable connection.After signal base plate, signal positioning pad, signal body shape, it is inserted in little housing, and utilizes single nut to compress, and be provided with locking measure in nut upper end, it is ensured that position is fixed, firm and durable, can prevent the mal-conditions such as vibration, impact, earthquake from it is produced impact.Upper cover, main valve shell, connecting plate connect with multiple screws, are provided with seal groove between each part, it is ensured that dress the first connection backing plate in the trench, the second connection backing plate seal are indeformable under the conditions of internal pressure, external pressure, thus ensure its intrinsic sealing property.
Above-mentioned permanent magnet utilizes the magnetic field penetrability energy of advanced magnetic transmission technology, signal lever location status is successfully exported outside pressure-bearing shell, and utilize the Guan Bi of reed switch contact and disconnection to output this signal to console, form passive contact signal, to realize truly, the most remotely to monitor the function of valve position.
The quantity of above-mentioned tongue tube increases to multiple, it is achieved Redundancy Design.In each signal body, it is packaged with at least 3 consistent tongue tubes of specifications and models, making this device all realize multiple spot output in valve opening position and pass valve position, lost efficacy if there is one or two tongue tubes, this device still ensures that true valve position signal is reliably exported by its inherent function.
Above-mentioned little housing unites two into one with main valve housing, forms whole pressure-bearing shell；Signal lever and main valve plunger use threadeds, and can move with valve core of main valve realizing it, react position, true valve position；Upper cover, connecting plate are connected by screw with the shell of main valve Electrical heads, form the high safeguard structure consistent with main valve Electrical heads, constitute electromagnetic driven stop valve highly integrated, entirety unites two into one, make electromagnetic driven stop valve main body organically combine and be integrally forming integrated morphology design, make whole signal output apparatus volume little, lightweight, reach to minimize target.
Above-mentioned little housing uses argon arc welding seal form with main valve valve pocket, has been effectively isolated system pipeline high-temperature high-pressure medium and has entered in recoil simulator.Argon arc seal weld structure and technique are to ensure that it has an aspect of permanent protective property energy；Silicon rubber grooved seal version is all used between upper cover and connecting plate, between connecting plate and shell.Silicon rubber grooved seal structure can prevent high humidity aqueous vapor in environment from entering into inside signal output apparatus, and have and higher bear internal pressure and external pressure ability, and the selection of silastic material makes it have higher resistance to nuclear radiation ability.Above-mentioned material and sealing structure are to ensure that another aspect of its permanent protective property energy；Novel high polymer material polyether-ether-ketone all selected by signal body, signal base plate, signal positioning pad, tongue tube encapsulating material selects epoxy resin, silastic material selected by tongue tube lead-in wire, these three material is respectively provided with stronger resistance to nuclear radiation ability, guarantee the high radiation hardness ability of whole recoil simulator, constitute permanent protective property, high corrosion-resistant, high radioresistance.
Above-mentioned magnetic conductive board selects accurate magnetically soft alloy material manufacture, and little housing selects high strength heat resistant stainless steel to manufacture, connecting plate, signal lever, upper cover, etc. all select the splendid stainless steel manufacture of corrosion resistance.
Above-mentioned permanent magnet selects resistant to elevated temperatures shirt blessing alloy.
Above-mentioned signal body, signal positioning pad, signal base plate all use novel high polymer material polyether-ether-ketone；The epoxy resin manufacture that insulating properties, heatproof and radiation-resistant property are splendid is selected in the encapsulation of tongue tube；
The copper conductor of silicon rubber crust selected by above-mentioned tongue tube lead-in wire, and the seal such as the second connecting plate pad and the first connecting plate pad all selects resistance to gentle radiation-resistant property good silicon rubber manufacture.
Main advantages of the present invention:
1, advanced magnetic transmission technology:
Multi-point magnet valves position signal output apparatus utilizes the penetrability energy in magnetic field dexterously, spool position state is successfully exported outside pressure-bearing shell, and utilize the Guan Bi of reed switch contact and disconnection to output this signal to console, form passive contact signal, to realize truly, the most remotely to monitor the function of valve position.
2, multi-point structure so that it is more safe and reliable:
Multi-point magnet valves position signal output apparatus is by increasing the quantity of tongue tube, it is achieved Redundancy Design.In each signal body, it is packaged with 3 consistent tongue tubes of specifications and models, making this device all realize multiple spot output in valve opening position and pass valve position, lost efficacy if there is 1 or 2 tongue tubes, this device still ensures that true valve position signal is reliably exported by its inherent function.
3 is highly integrated with electromagnetic driven stop valve, and entirety unites two into one:
Multi-point magnet valves position signal output apparatus is designed by structure cleverly, organically combines with electromagnetic driven stop valve main body and is integrally forming, is mainly manifested in: 1) little housing unites two into one with main valve housing, forms whole pressure-bearing shell.2) signal lever and main valve plunger use and threaded, and can move with valve core of main valve realizing it, react position, true valve position.3) upper cover, connecting plate are connected by screw with the shell of main valve Electrical heads, form the high safeguard structure consistent with main valve Electrical heads.Above-mentioned integrated morphology designs, and makes whole signal output apparatus volume little, lightweight, reaches to minimize target.
4, permanent protective property, high corrosion-resistant, high radioresistance:
Multi-point magnet valves position signal output apparatus has permanent protective property, high corrosion-resistant, the advantage of high radioresistance, is mainly manifested in the following aspects:
1) the little housing of multi-point magnet valves position signal output apparatus uses argon arc welding seal form with main valve valve pocket, has been effectively isolated system pipeline high-temperature high-pressure medium and has entered in recoil simulator.Argon arc seal weld structure and technique are to ensure that it has an aspect of permanent protective property energy；
2) between upper cover and the connecting plate of multi-point magnet valves position signal output apparatus, silicon rubber grooved seal version between connecting plate and shell, is all used.Silicon rubber grooved seal structure can prevent high humidity aqueous vapor in environment from entering into inside signal output apparatus, and have and higher bear internal pressure and external pressure ability, and the selection of silastic material makes it have higher resistance to nuclear radiation ability.Above-mentioned material and sealing structure are to ensure that another aspect of its permanent protective property energy.
3) signal body, signal base plate, adjusting pad all select novel high polymer material polyether-ether-ketone, tongue tube encapsulating material selects epoxy resin, silastic material selected by tongue tube lead-in wire, and these three material is respectively provided with stronger resistance to nuclear radiation ability, it is ensured that the high radiation hardness ability of whole recoil simulator.
4) the good stainless steel material of corrosion resistance all selected by all parts contacted with medium and environment, it is ensured that the corrosion resistance of whole signal output apparatus.
5, good anti-seismic performance
In the signal output apparatus of multi-point magnet valves position, thread connecting mode between little housing and main valve housing, stainless steel cage rolling technology between permanent magnet and signal lever, tongue tube and the epoxy encapsulation technique of signal body, go between overlap the form that crimps and signal base plate, adjusting pad, the shaping of signal body with the specific cards between tongue tube after, utilize nut to compress and be provided with in nut upper end the enforcement of the structures such as locking measure and technique, all make this signal output apparatus have stronger anti-vibration, shock resistance and the performance of the mal-condition such as antiseismic.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve, including magnetic conductive board the 1, second connection backing plate 2, clamp nut 3, connecting plate 4, static iron core 5, secondary signal pad 6, signal lever 7, signal base plate 8, signal positioning pad 9, signal body 10, tongue tube 11, nut 12, little housing the 13, first signal pad 14, upper cover the 15, first connection backing plate 16, permanent magnet 17.Selecting between described little housing 13 and main valve housing to use and threaded, with the needs of proof strength, junction uses argon arc seal weld, to ensure the needs sealed, it is ensured that high-temperature high-pressure medium nothing in pressure-bearing shell leaks outside.Little housing 13 is fixed on the static iron core 5 of main valve with its bottom, and compresses with clamp nut 3.Being provided with signal lever 7 in little housing 13, one end of signal lever 7 is connected with main valve plunger, and the other end is provided with permanent magnet 17, for triggering the tongue tube 11 outside housing.Stainless steel cage rolling technology is used, it is ensured that do not fall off under moving condition between permanent magnet 17 and signal lever 7；Two signal bodies 10 it are provided with outside described little housing 13, three tongue tubes 11 of embedding on each signal body, tongue tube 11 uses epoxy resin low temperature embedding with the encapsulation of signal body 10, intermediate temperature setting technique, tongue tube is made to be firmly secured in signal body, ensure that appearance intensity and internal inert gas do not leak under the conditions of vibration, earthquake etc., and then realize long-life target, to realize multi-point triggering.Pad the 9 valve opening positions that the tongue tube 11 in two signal bodies 10 is respectively placed in permanent magnet 17 on signal lever by signal positioning and close valve position, it is ensured that different dry reed pipe 11 is triggered with closing two positions of valve in valve opening by signal lever 7.Described permanent magnet utilizes the magnetic field penetrability energy of advanced magnetic transmission technology, signal lever location status is successfully exported outside pressure-bearing shell, and utilize the Guan Bi of reed switch contact and disconnection to output this signal to console, form passive contact signal, to realize truly, the most remotely to monitor the function of valve position.The quantity of described tongue tube 11 increases to multiple, it is achieved Redundancy Design.In each signal body, it is packaged with the consistent tongue tube of at least three specifications and models 11, making this device all realize multiple spot output in valve opening position and pass valve position, lost efficacy if there is one or two tongue tubes, this device still ensures that true valve position signal is reliably exported by its inherent function.It is connected by specific cards set between trigger lie with tongue tube 11 and crimps form, it is ensured that firm and reliable connection.After signal base plate 8, secondary signal pad 6, signal positioning pad 9, signal body 10 shape, it is inserted in little housing 13, and utilize single nut 12 to compress, seal with the first signal pad 14, and it is provided with locking measure in nut 12 upper end, ensure that position is fixed, firm and durable, can prevent the mal-conditions such as vibration, impact, earthquake from it is produced impact.Valve position signal output device uses the safeguard structure of electromagnetic driven stop valve body in terms of degree of protection, it is made up of little housing 13, magnetic conductive board 1, connecting plate 4, upper cover 15, its upper cover 15, main valve shell, connecting plate 4 connect with multiple screws, seal groove it is provided with between each part, ensure that dress first connection backing plate the 16, second connection backing plate 2 seal in the trench is indeformable under the conditions of internal pressure, external pressure, thus ensure its intrinsic sealing property.Ensure that its degree of protection under high temperature, high-pressure medium condition and the environmental condition such as high humidity, Gao Re and LOCA can IP68 (the most waterproof).Described little housing 13 unites two into one with main valve housing, forms whole pressure-bearing shell；Signal lever 7 and main valve plunger use threadeds, and can move with valve core of main valve realizing it, react position, true valve position；Upper cover 15, connecting plate 4 are connected by screw with the shell of main valve Electrical heads, form the high safeguard structure consistent with main valve Electrical heads, constitute electromagnetic driven stop valve highly integrated, entirety unites two into one, make electromagnetic driven stop valve main body organically combine and be integrally forming integrated morphology design, make whole signal output apparatus volume little, lightweight, reach to minimize target.Described little housing 13 uses argon arc welding seal form with main valve valve pocket, has been effectively isolated system pipeline high-temperature high-pressure medium and has entered in recoil simulator.Argon arc seal weld structure and technique are to ensure that it has an aspect of permanent protective property energy；Silicon rubber grooved seal version is all used between upper cover 15 and connecting plate 4, between connecting plate 4 and shell.Silicon rubber grooved seal structure can prevent high humidity aqueous vapor in environment from entering into inside signal output apparatus, and have and higher bear internal pressure and external pressure ability, and the selection of silastic material makes it have higher resistance to nuclear radiation ability.Above-mentioned material and sealing structure are to ensure that another aspect of its permanent protective property energy；Novel high polymer material polyether-ether-ketone all selected by signal body 10, signal base plate 8, signal positioning pad 9, tongue tube 11 encapsulating material selects epoxy resin, silastic material selected by tongue tube lead-in wire, these three material is respectively provided with stronger resistance to nuclear radiation ability, guarantee the high radiation hardness ability of whole recoil simulator, constitute permanent protective property, high corrosion-resistant, high radioresistance.Described magnetic conductive board 1 selects accurate magnetically soft alloy material manufacture, and little housing 13 selects high strength heat resistant stainless steel manufacture, connecting plate 4, signal lever 7, upper cover 15, etc. all select the splendid stainless steel manufacture of corrosion resistance.Described magnetic conductive board 1 selects accurate magnetically soft alloy material manufacture, and little housing 13 selects high strength heat resistant stainless steel manufacture, connecting plate 4, signal lever 7, upper cover 15, etc. all select the splendid stainless steel manufacture of corrosion resistance.Described magnetic conductive board 1 selects accurate magnetically soft alloy material manufacture, and little housing 13 selects high strength heat resistant stainless steel manufacture, connecting plate 4, signal lever 7, upper cover 15, etc. all select the splendid stainless steel manufacture of corrosion resistance.Described permanent magnet 17 selects resistant to elevated temperatures shirt blessing alloy.Described signal body 10, signal positioning pad 9, signal base plate 8 all use novel high polymer material polyether-ether-ketone；The epoxy resin manufacture that insulating properties, heatproof and radiation-resistant property are splendid is selected in the encapsulation of tongue tube 11；The copper conductor of silicon rubber crust selected by described tongue tube lead-in wire, and the second connecting plate pad 2 and the first connecting plate pad 16 seal all select resistance to gentle radiation-resistant property good silicon rubber manufacture.
Operation principle
When electromagnetic driven stop valve is closed, permanent magnet on signal lever is positioned at position shown in Fig. 1, i.e. corresponding with the tongue tube in lower end signal body, the magnetic field of permanent magnet will be through little housing, trigger the tongue tube in lower end signal body, now distant due to the tongue tube in upper end signal body and permanent magnet, suffered magnetic will is less, is not triggered.Therefore the lead-in wire descended in end signal body on tongue tube will close valve to control room output and trigger signal.During electromagnetic driven stop valve valve opening, drive permanent magnet is moved upward by signal lever, move to stop after the tongue tube correspondence position in upper end signal body, now main valve is in valve opening state, and in permanent magnet motion process, magnetic force moment suffered by the reed switch contact in lower end signal body reduces, contact disengages, after motion puts in place, magnetic force moment suffered by the tongue tube in upper end signal body increases and is triggered, and the lead-in wire therefore gone up in end signal body on tongue tube will close valve to control room output and trigger signal.
Claims (10)
- null1. multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve，Including magnetic conductive board (1)、Second connection backing plate (2)、Clamp nut (3)、Connecting plate (4)、Static iron core (5)、Secondary signal pad (6)、Signal lever (7)、Signal base plate (8)、Signal positioning pad (9)、Signal body (10)、Tongue tube (11)、Nut (12)、Little housing (13)、First signal pad (14)、Upper cover (15)、First connection backing plate (16)、Permanent magnet (17)，It is characterized in that described little housing (13) is threadeded with main valve housing，Junction uses argon arc seal weld，Little housing (13) is fixed on the static iron core (5) of main valve with its bottom，Signal lever (7) is installed in little housing (13)，One end of signal lever is connected with main valve plunger，The other end is provided with permanent magnet (17)，For triggering the tongue tube outside housing；Little housing (13) outside is provided with two signal bodies (10), three tongue tubes (11) of embedding on each signal body, to realize multi-point triggering, by signal positioning pad (9), the tongue tube (11) in two signal bodies (10) is respectively placed in valve opening position and the pass valve position of the upper permanent magnet (17) of signal lever (7), ensure that different dry reed pipe is triggered by signal lever in valve opening and two positions of valve, pass, valve position signal output device uses the safeguard structure of electromagnetic driven stop valve body in terms of degree of protection, by little housing (13), magnetic conductive board (1), connecting plate (4), upper cover (15) forms, it is provided with seal between each part.
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterized in that using stainless steel cage rolling technology between described permanent magnet (17) and signal lever (7), do not fall off under moving condition；Tongue tube (11) uses epoxy resin low temperature embedding with signal body (10), tongue tube is fixed in signal body, after signal base plate (8), signal positioning pad (9), signal body (10) shape, it is inserted in little housing (13), utilize single nut (12) to compress, and be provided with locking measure in nut (12) upper end；Upper cover (15), main valve shell, connecting plate (4) connect with multiple screws, are provided with seal groove between each part.
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterized in that described permanent magnet (17) utilizes the magnetic field penetrability energy of magnetic transmission technology, signal lever (7) location status is successfully exported outside pressure-bearing shell, and utilize the Guan Bi of tongue tube (11) contact and disconnection to output this signal to console, form passive contact signal.
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterized in that the quantity of described tongue tube (11) increases to multiple, in each signal body, it is packaged with three the consistent tongue tube of specifications and models (11).
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterised in that described little housing (13) unites two into one with main valve housing, forms whole pressure-bearing shell；Signal lever (7) uses with main valve plunger threadeds, and upper cover (15), connecting plate (4) are connected by screw with the shell of main valve Electrical heads.
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterized in that described little housing (13) and main valve valve pocket use argon arc welding to seal, between upper cover (15) and connecting plate (4), between connecting plate (4) and shell, it is respectively arranged with silicon rubber channel sealing member, signal body (10), signal base plate (8), signal positioning pad (9) all select macromolecular material polyether-ether-ketone, tongue tube (11) encapsulating material selects epoxy resin, tongue tube lead-in wire to select silastic material.
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterized in that little housing (13) selects high strength heat resistant stainless steel to manufacture, connecting plate (4), signal lever (7), upper cover (15), all selection stainless steel manufactures.
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterised in that described permanent magnet (17) selects resistant to elevated temperatures shirt blessing alloy.
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterised in that described signal body (10), signal positioning pad (9), signal base plate (8) all use macromolecular material polyether-ether-ketone；Epoxy resin manufacture is selected in the encapsulation of tongue tube (11).
- Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve the most according to claim 1, it is characterized in that the copper conductor of silicon rubber crust selected by described tongue tube lead-in wire, the second connection backing plate (2) and the first connection backing plate (16) seal all select silicon rubber manufacture.
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| CN201310726099.9A CN103759062B (en) | 2013-12-26 | 2013-12-26 | Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve |
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| CN201310726099.9A CN103759062B (en) | 2013-12-26 | 2013-12-26 | Multi-point magnetic valve position signal output device of nuclear safety-level electromagnetic stop valve |
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| CN107355442A (en) * | 2017-09-15 | 2017-11-17 | 鞍山电磁阀有限责任公司 | Two-position four-way solenoid valve |
| CN109681693A (en) * | 2018-11-01 | 2019-04-26 | 邯郸钢铁集团有限责任公司 | A kind of molecular sieve switching valve valve position waterproof is close to switch and its installation and application |
| CN114001182B (en) * | 2021-11-17 | 2024-01-30 | 中国核动力研究设计院 | Low flow resistance small pressure difference check valve |
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| CN103411013A (en) * | 2013-07-16 | 2013-11-27 | 鞍山电磁阀有限责任公司 | Condensed water two-position two-way directly operated type electromagnetic valve |
| CN203670979U (en) * | 2013-12-26 | 2014-06-25 | 鞍山电磁阀有限责任公司 | Multi-point-position magnetic valve position signal output device of nuclear safety level electromagnetic movable stop valve |
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| CN103759062A (en) | 2014-04-30 |
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Address after: 114300 Xinglong Industrial Park, Xiuyan County, Anshan City, Liaoning Province Patentee after: ANSHAN SOLENOID VALVE Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: 114300 Xinglong Industrial Park, Xiuyan County, Anshan City, Liaoning Province Patentee before: ANSHAN SOLENOID VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address after: 114300 Xinglong Industrial Park, Xiuyan County, Anshan City, Liaoning Province Patentee after: ANSHAN SOLENOID VALVE Co.,Ltd. Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: 114300 Xinglong Industrial Park, Xiuyan County, Anshan City, Liaoning Province Patentee before: ANSHAN SOLENOID VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |