WO2021056810A1 - 核电厂设备闸门 - Google Patents

核电厂设备闸门 Download PDF

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Publication number
WO2021056810A1
WO2021056810A1 PCT/CN2019/121895 CN2019121895W WO2021056810A1 WO 2021056810 A1 WO2021056810 A1 WO 2021056810A1 CN 2019121895 W CN2019121895 W CN 2019121895W WO 2021056810 A1 WO2021056810 A1 WO 2021056810A1
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WO
WIPO (PCT)
Prior art keywords
gate
lifting
power plant
nuclear power
support
Prior art date
Application number
PCT/CN2019/121895
Other languages
English (en)
French (fr)
Inventor
张峰
何英勇
谢洪虎
刘小华
陈楚员
杨锦春
冉小兵
黄凯
栾鸾
谢濡泽
钦军伟
陈曌
李越
张译寒
李石磊
赵小红
李今朝
Original Assignee
中广核工程有限公司
深圳中广核工程设计有限公司
中国广核集团有限公司
中国广核电力股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中广核工程有限公司, 深圳中广核工程设计有限公司, 中国广核集团有限公司, 中国广核电力股份有限公司 filed Critical 中广核工程有限公司
Priority to EP19947094.9A priority Critical patent/EP4050245A4/en
Publication of WO2021056810A1 publication Critical patent/WO2021056810A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/04—Driving gear manually operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
    • B66D3/08—Arrangements of sheaves
    • 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
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/316—Guiding of the slide
    • 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
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • 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
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
    • 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
    • F16K31/44—Mechanical actuating means
    • F16K31/46—Mechanical actuating means for remote operation
    • F16K31/465—Mechanical actuating means for remote operation by flexible transmission means, e.g. cable, chain, bowden wire
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the present invention belongs to the field of nuclear power technology, and more specifically, the present invention relates to a nuclear power plant equipment gate.
  • the equipment gate of a nuclear power plant is a gate for large equipment to enter and exit.
  • the equipment gates are opened and used as the access channels for large-scale equipment (such as steam generators, etc.) in the reactor building.
  • the equipment gate is closed and forms a third barrier together with the reactor containment to prevent the leakage of radioactive materials. It is part of the containment pressure boundary.
  • one solution is to install the equipment gate hoisting device in the middle of the upper part of the door opening, and it is composed of two hoisting mechanisms, which are connected by a rigid shaft between the two hoisting mechanisms to maintain the synchronization of the hoisting.
  • the length of the wire ropes of the two lifting mechanisms will be different after operation, and the rigid shaft needs to be disassembled for adjustment, which is very troublesome for operation and maintenance.
  • the head of the gate relies on the steel wire rope on the lifting mechanism to achieve lowering and lifting. There is no guiding device in the process, and it is difficult to maintain stability during the lifting process. When hoisting the highest position, the gate head is hung by a high-position suspension device without other anti-seismic auxiliary mechanisms.
  • Positioning devices and centering devices are arranged on both sides of the lower part of the gate head, which are used for centering the bolt holes of the head flange when the gate is closed.
  • the head is matched and connected with the flange by manual horizontal push.
  • the equipment gate lifting device is also composed of two lifting mechanisms, which are arranged on both sides above the door opening together with the guide device, and the synchronization of the two lifting mechanisms is maintained through the electronic control system, but its Safety and reliability are not as good as mechanical systems.
  • the gate is equipped with guiding devices on both sides to realize the functions of guiding, hanging, translation, centering and positioning of the head at the same time. It is highly automated and easy to operate. However, due to the high integration, the failure of any mechanism will cause the gate to fail to close quickly.
  • the present invention provides a safe and reliable nuclear power plant equipment gate.
  • a nuclear power plant equipment gate including a tube section fixedly connected to the penetrating member of the containment, the nuclear power plant equipment gate further comprising: a gate head, and the tube
  • the end faces of the joints are correspondingly arranged for sealing connection with the cylinder joints;
  • the lifting and lifting assembly is arranged above the gate head and is movably connected with the gate head for lifting and lifting the gate head.
  • high-position suspension components arranged above the gate head, used to detachably connect with the gate head when the gate head is hoisted to a designated position; the seismic limit component is partially set on the containment It is movably connected with the gate head to limit the position of the gate head and resist earthquakes when the gate head is hung on the high-position suspension assembly.
  • the nuclear power plant equipment gate further includes: guide components, which are arranged on both sides of the gate head, and are used to perform the operation on the gate head when the gate head is lowered and reset. Guide; positioning and centering components are provided on the outer side of the gate head and the flange of the cylinder section corresponding to the outer side of the gate head, and are used for centering and positioning the position of the gate head relative to the cylinder section To achieve a sealed connection between the two.
  • the hoisting and hoisting assembly includes two hoisting brackets symmetrically distributed on both sides of the gate head and two hoisting brackets respectively fixedly arranged on the two hoisting brackets.
  • Lifting mechanism; the lifting mechanism is used for lifting and resetting the gate head; the lifting bracket is used for guiding during the lifting and resetting of the gate head; the lifting and lifting assembly further includes a control unit , The control unit is respectively connected with the two lifting mechanisms, and is used for controlling the two lifting mechanisms to work synchronously.
  • the hoisting bracket includes a first hoisting bracket and a second hoisting bracket
  • the hoisting mechanism includes a first hoisting bracket fixed on the first hoisting bracket and the second hoisting bracket.
  • the first lifting mechanism comprising: a first reel, wound on the first reel The first steel wire rope and the second steel wire rope, one end of the first steel wire rope is fixedly connected with the first drum, and the other end is fixedly connected with the first hoisting platform;
  • the second hoisting mechanism includes: a second drum , The third steel wire rope and the fourth steel wire rope wound on the second drum, one end of the third steel wire rope is fixedly connected with the second drum, and the other end is fixedly connected with the second hoisting platform;
  • the rope mechanism includes: a first hoisting pulley connected to the first and second steel ropes, a first balancing unit and a first guide pulley, a second hoisting pulley connected to the third and fourth steel ropes, The second balance unit and the second guide pulley, and a breaker connecting the second wire rope and the fourth wire rope, the breaker is used to realize the working
  • one end of the second wire rope is fixedly connected to the first reel, and the other end is connected to the second hoisting pulley, the first balancing unit, the first guide pulley, and the breaker in sequence.
  • Winding connection; one end of the fourth steel wire rope is fixedly connected to the second reel, and the other end is connected to the fourth hoisting pulley, the second balance unit, the second guide pulley, and the breaker in turn to be wound and connected.
  • the breaker includes a sliding groove, a sliding shaft arranged in the sliding groove and slidably connected to the sliding groove, and the sliding groove is fixedly connected with the high suspension assembly, so
  • the second steel wire rope and the sliding shaft can be wound and connected and extend to the side close to the second lifting mechanism, and the fourth steel wire rope can be wound and connected to the sliding shaft and extends to the side close to the first lifting mechanism,
  • the second steel wire rope and the fourth steel wire rope extending to the side close to the second hoisting mechanism, and the fourth steel wire rope and the second steel wire rope extending to the side close to the first hoisting mechanism are all fixedly connected by a plurality of locks.
  • the first hoisting mechanism further includes: a motor, a reducer, a running brake, an emergency brake, and a safety brake fixed on the first hoisting bracket, and the motor is used for To provide driving force for the first reel, the reducer includes an input shaft, the output shaft of the motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the input of the first reel
  • the operating brake and the emergency brake are respectively arranged on the input shaft of the reducer, and the safety brake is arranged on the input shaft of the first reel.
  • the first lifting mechanism further includes a hand wheel, which is arranged on the input shaft of the motor and is used to move the station through the hand wheel when the motor loses power.
  • the gate head; the first hoisting mechanism also includes a heat dissipation unit arranged inside the motor for dissipating heat for the motor.
  • the first balance unit includes: a support fixed on the first lifting bracket, a rotating shaft fixedly connected to the support, and a rotating shaft capable of connecting with the rotating shaft.
  • Rotatingly connected balance beam, the first suspension arm, the second suspension arm and the first damper and the second damper hinged to the balance beam, the first suspension arm and the second suspension arm are symmetrical along the support
  • the first and second hanging arms are respectively provided with a first pulley and a second pulley at one end of the first hanging arm and the second hanging arm away from the balance beam, and the first damper and the second damper are symmetrically distributed along the support , And located outside the first suspension arm and the second suspension arm, one end of the first damper and the second damper is fixedly connected to the balance beam, and the other end is fixedly connected to the first lifting bracket;
  • a weighing sensor is arranged on the rotating shaft for real-time monitoring of the force state of the support beam.
  • the first hoisting pulley includes: a third pulley, a fourth pulley, a bearing, a pulley shaft, a lug and a trunnion, and the third pulley and the fourth pulley are along the lugs.
  • the plates are symmetrically distributed, and both the third pulley and the fourth pulley are fixedly connected to the pulley shaft through the bearing, the trunnion passes through the lug plate transversely, and the trunnion is slidably connected to the lug plate, and the lug plate is connected to the
  • the gate head is fixedly connected, the first steel wire rope and the third pulley can be wound and connected, and the second steel wire rope and the fourth pulley can be wound and connected.
  • a first lug and a second lug are symmetrically arranged on the upper part of the gate head, and the second lug is fixedly connected with the second hoisting pulley, and the first lug is fixedly connected to the second lifting pulley.
  • One ear is fixedly connected with the trunnion, and is used for moving upwards driven by the first hoisting pulley and the second hoisting pulley.
  • the high-position suspension assembly includes a high-position suspension bracket arranged directly above the gate head, and a first suspension unit and a second suspension unit fixedly connected to the high-position suspension bracket, so The first suspension unit and the second suspension unit are used to detachably connect with the first lifting lugs and the second lifting lugs provided on both sides of the gate cover when the gate cover is opened; the first The lifting lug and the second lifting lug are respectively welded and connected with the gate head.
  • the first suspension unit includes: a steel support, a suspension hook and a spring stopper, the steel support is fixed on the high suspension bracket, and the suspension hook is connected to The steel support is hinged, and the spring baffle is hinged to the suspension hook.
  • the gate head moves upward to a designated position, the first lifting lug pushes the spring baffle and the suspension hook Removable connection.
  • the steel support includes a first support, a second support and a third support perpendicular to the first support, and the second support and the third support The seats are parallel, and the second support and the third support form an open space, one end of the suspension hook extends to the open space, the suspension unit further includes a pin shaft, the pin shaft penetrates the second The support, the third support and the suspension hook realize the hinged connection between the suspension hook and the steel support.
  • the high suspension bracket includes a plurality of main beams perpendicular to the nuclear power plant containment, and a first beam, a second beam, and a third beam that are perpendicular to the main beam.
  • a beam, the main beam is fixedly connected to the wall of the nuclear power plant containment building, the first beam, the second beam and the main beam form a plurality of annular spaces, and the steel support is fixed to the plurality of annular spaces
  • the high-position suspension bracket further includes a plurality of inclined support beams for enhancing the stability of the high-position suspension bracket, and the first guide pulley and the second guide pulley are respectively fixed on both ends of the third cross beam.
  • the guide assembly includes: a first guide unit, the first guide unit includes a first guide rail arranged vertically and a first guide wheel that can move up and down along the first guide rail , One end of the first guide wheel is fixedly connected to the gate head, and the other end is slidably connected to the first guide rail; a second guide unit, the second guide unit includes a second guide rail arranged vertically and a Two guide rails move up and down a second guide wheel, one end of the second guide wheel is fixedly connected to the gate head, and the other end is slidably connected to the second guide rail.
  • the positioning and centering assembly includes a positioning unit and a centering unit:
  • the positioning unit includes: a first support fixedly connected to the flange of the cylinder section, and is arranged on the first support The first circular rail inside the part, and the first roller support fixedly connected to the gate head, the first roller is fixedly connected to the first roller support through the first roller shaft, and is used to achieve the height of the gate head
  • the centering unit includes: a second support member fixedly connected to the flange of the cylinder section, a second circular rail provided inside the second support member, and a second roller support fixedly connected to the gate head
  • the second roller and the third roller are fixedly connected with the second roller support through the second roller shaft and the third roller shaft respectively, and are used for realizing the automatic centering of the gate head.
  • the seismic limit component includes a first seismic support, a second seismic support, a first seismic pin, a second seismic pin, a first bolt, and a second bolt.
  • An anti-seismic support and a second anti-seismic support are respectively welded and connected to the containment of the nuclear power plant, the first anti-seismic pin and the second anti-seismic pin are respectively welded and connected to the third lug and the fourth lug, and the first anti-seismic pin
  • the second seismic pin are respectively inserted into the first pin hole and the second pin hole to limit the left and right movement of the gate head.
  • the first pin and the second pin are respectively connected to the first and second seismic supports
  • the fixed connection is used to limit the up and down movement of the gate head.
  • the translation assembly includes a first translation unit and a second translation unit, and the first translation unit and the second translation unit respectively correspond to the first guide rail and the second guide rail.
  • the first translation unit includes a first guide chute, a first guide block, and a first push rod.
  • the first guide chute is fixedly connected to the first guide rail, and the first push-pull rod is connected to the first push rod.
  • a guide block can be connected by pushing, the first guide block is slidably connected with the first guide chute through the first push-pull rod, and the gate head is translated under the guiding action of the first guide block.
  • the nuclear power plant equipment gate further includes steel platforms located at different heights required for operation by the staff, and the steel platforms of different heights are connected by climbing ladders.
  • the present invention provides a nuclear power plant equipment gate in view of the technical problems in the prior art that the safety and reliability of the nuclear power plant equipment gate is not high and the seismic resistance does not meet the requirements.
  • the automatic high-position suspension, guidance, centering, positioning and translation of the gates of nuclear power plants are realized without manual intervention.
  • the failure of a single mechanism does not affect the operation of other mechanisms, which improves the reliability of the equipment.
  • Figure 1 is a schematic structural diagram of a nuclear power plant equipment gate provided by an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a lifting mechanism for a gate of a nuclear power plant equipment provided by an embodiment of the present invention
  • Fig. 3 is a schematic structural diagram of a breaker for a gate of a nuclear power plant equipment provided by an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a first lifting mechanism of a gate of a nuclear power plant equipment provided by an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a first balancing unit of a gate of a nuclear power plant equipment provided by an embodiment of the invention
  • FIG. 6 is a schematic structural diagram of a first hoisting pulley of a gate of a nuclear power plant equipment provided by an embodiment of the invention
  • FIG. 7 is a schematic structural diagram of a first suspension unit of a gate of a nuclear power plant equipment provided by an embodiment of the invention.
  • FIG. 8 is a schematic structural diagram of a first high-position suspension bracket of a gate of a nuclear power plant equipment provided by an embodiment of the invention.
  • FIG. 9 is a schematic structural diagram of a positioning unit for a gate of a nuclear power plant equipment provided by an embodiment of the invention.
  • FIG. 10 is a schematic structural diagram of a centering unit of a gate of a nuclear power plant equipment provided by an embodiment of the invention.
  • FIG. 11 is a schematic structural diagram of a seismic limit component of a nuclear power plant equipment gate provided by an embodiment of the invention.
  • Fig. 12 is a schematic structural diagram of a first translation unit of a gate of a nuclear power plant equipment provided by an embodiment of the invention.
  • the present invention aims to provide a nuclear power plant equipment gate, and its core idea is to provide a nuclear power plant equipment The gate, where the failure of a single mechanism does not affect the operation of other mechanisms, and improves the reliability of the equipment; the positioning and centering components are symmetrically distributed under the head, in extreme cases, can bear the weight of the head of the gate, reduce the risk of bolt failure, and prevent Head falling; adopting a new type of high-position suspension assembly, in the process of normal electric hoisting or hand-cranking lifting mechanism after power failure, automatic suspension and decoupling of the gate head can be realized, without the need for electronically controlled suspension devices and manual intervention ; A new type of hoisting mechanism with a rope winding mechanism is adopted to realize mechanical and electrical dual redundancy, ensure automatic synchronization, and improve the synchronization of the operation of the hoisting mechanism. At the same time, it can ensure that any wire rope
  • the embodiment of the present invention provides a nuclear power plant equipment gate, which includes a tube section fixedly connected to the penetrating member of the containment. As shown in Fig. 1, the nuclear power plant equipment gate also includes:
  • the gate head 1 is set corresponding to the end face of the cylinder section, and the cylinder section is sealed and connected through the cylinder section flange to realize the opening and closing of the cylinder section;
  • the hoisting and lifting assembly 100 is arranged above the gate head 1 and is movably connected with the gate head 1 for lifting and resetting the gate head 1 to realize the sealing and opening of the cylinder section and the gate head 1;
  • the high-position suspension assembly 200 is set above the gate head 1 and is used to detachably connect the gate head 1 when the gate head 1 is hoisted to a designated position, so as to realize the fixing of the gate head 1 after being lifted;
  • the anti-seismic limit component 400 is partially set on the containment and movably connected with the gate head 1 to limit the gate head 1 and resist earthquakes when the gate head 1 is suspended on the high suspension assembly 200 . Prevent the gate head 1 from shaking back and forth and moving up and down under earthquake conditions, effectively improving the seismic capacity of the gate of nuclear power plant equipment.
  • nuclear power plant equipment gate of the present invention also includes:
  • the guide assembly 300 is arranged on both sides of the gate head 1 and is used to guide the gate head 1 when the gate head 1 is lowered and reset;
  • the positioning and centering assembly 500 is arranged on the outer side of the gate head 1 and the flange of the cylinder section corresponding to the outer side of the gate head 1, and is used for centering and positioning the position of the gate head 1 relative to the cylinder section. To achieve a sealed connection between the two.
  • the guide assembly 300 includes:
  • the first guide unit 310 includes a first guide rail 311 vertically arranged and a first guide wheel 312 that can move up and down along the first guide rail 311.
  • One end of the first guide wheel 312 is fixedly connected to the gate head 1; The other end is slidably connected to the first guide rail 311;
  • the second guide unit 320 includes a vertically arranged second guide rail 321 and a second guide wheel 322 that can move up and down along the second guide rail 321.
  • One end of the second guide wheel 322 is fixedly connected to the gate head 1; The other end is slidably connected to the second guide rail 321.
  • the positioning and centering assembly 500 includes a positioning unit 510 and a centering unit 520; the positioning unit 510 and the centering unit 520 are used to realize the positioning at the height of the gate head 1 when the gate head 1 is dropped, and automatically realize it according to gravity Center positioning to ensure that the gate head 1 coincides with the center of the flange of the cylinder section.
  • the gate of the nuclear power plant equipment also includes a translational assembly 600
  • the translational assembly 600 includes a first translation unit 610 and a second translation unit 620, the first translation unit 610 and the second translation unit 620, respectively
  • the gate head 1 is lowered to a position relative to the end surface of the cylinder section, and the gate head 1 is pushed toward the cylinder section flange and It is closed.
  • the hoisting and lifting assembly 100 includes two hoisting brackets 110 symmetrically distributed on both sides of the gate head 1 and two hoisting mechanisms respectively fixedly arranged on the two hoisting brackets 110 120;
  • the lifting mechanism 120 is used to lift and reset the gate head 1;
  • the lifting bracket 110 is used to support the lifting mechanism 120, wherein the lifting and lifting assembly 100 also includes a control unit, which is respectively connected to the two lifting mechanisms 120 It is controllably connected and used to control the two lifting mechanisms 120 to work synchronously. Ensure the stability of the gate head 1 during lifting and resetting, and ensure the safety of the nuclear power plant equipment gate.
  • the lifting bracket 110 includes a first lifting bracket 111 and a second lifting bracket 112. It should be noted that the first lifting bracket 111 and the second lifting bracket 112 are not fixedly connected to the first rail 311 or the second rail 321, In this way, a certain degree of freedom can be provided when earthquakes and other vibration-causing events occur in nuclear power plants. At the same time, since the first guide rail 311 or the second guide rail 321 are both very long, they are not fixed, leaving a certain degree of freedom, which can prevent the first guide rail 311 or the second guide rail 321 from being damaged, and improve the service life of the nuclear power plant equipment gate. .
  • a first lifting lug 11, a second lifting lug 12, a first lug 13 and a second lug 14 are respectively welded on the gate head 1, wherein the first lifting lug 11 and the second lifting lug 12 are symmetrically arranged
  • the first lug 13 and the second lug 14 are symmetrically arranged in the middle of the gate head 1, and are used to realize the hoisting of the gate head 1.
  • the lifting mechanism 120 includes a first lifting mechanism 121 and a second lifting mechanism 122 respectively fixed on the first lifting bracket 111 and the second lifting bracket 112, and the first lifting mechanism 121 and the second lifting mechanism 122 are arranged
  • the height is the same, and it is used to provide power to realize the lifting and resetting of the gate head 1.
  • the high suspension assembly 200 includes a high suspension bracket 210 arranged directly above the gate head 1 and a first suspension unit 220 and a second suspension unit 230 fixedly connected to the high suspension bracket 210, the first suspension unit 220 and the second suspension unit 230
  • the suspension unit 230 is used to detachably connect with the first lifting lug 11 and the second lifting lug 12 when the shutter head 1 is opened.
  • the equipment gate of the nuclear power plant also includes steel platforms 700 located at different heights required for operation by the staff, and the steel platforms 700 at different heights are connected by a ladder 800.
  • the steel platform 700 is fixedly connected to the gate head 1, and the climbing ladder 800 is fixedly connected to the steel platform 700 of different heights.
  • the lifting mechanism 120 further includes a rope winding mechanism 123 connected to the first lifting mechanism 121 and the second lifting mechanism 122.
  • the first lifting mechanism 121 includes: a first reel 1211, wound on the The first wire rope 1212 and the second wire rope 1213 on a drum 1211, one end of the first wire rope 1212 is fixedly connected to the first drum 1211, and the other end is fixedly connected to the first lifting bracket 111.
  • the second hoisting mechanism 122 includes: a second reel 1221, a third steel wire 1222 and a fourth steel wire 1223 wound on the second reel 1221, one end of the third steel wire 1222 is fixedly connected to the second reel 1221, and the other end is connected to the second reel 1221
  • the second lifting bracket 112 is fixedly connected.
  • the rope winding mechanism 123 includes: a first hoisting pulley 1231, a first balancing unit 1233, and a first guide pulley 1234 that are wound and connected with the first steel rope 1212 and the second steel rope 1213, and are wound with the third steel rope 1222 and the fourth steel rope 1223
  • the breaker 1239 is used to realize the first lifting mechanism and 121
  • the second lifting mechanism 122 is safe to work. It should be noted that the first balancing unit 1233 and the second balancing unit 1237 are fixedly connected to the first lifting bracket 111 and the second lifting bracket 112, respectively.
  • One end of the second wire rope 1213 is fixedly connected to the first reel 1211, and the other end is in turn connected to the first hoisting pulley 1231, the first balancing unit 1233, the first guide pulley 1234, and the breaker 1239; one end of the fourth wire rope 1223
  • the second reel 1221 is fixedly connected, and the other end is in turn connectable with the second hoisting pulley 1232, the second balancing unit 1237, the second guide pulley 1238, and the breaker 1239 in turn.
  • the breaker 1239 includes a sliding groove 12391, a sliding shaft 12392 disposed in the sliding groove 12391 and slidably connected to the sliding groove 12391, the sliding groove 12392 is fixedly connected to the high suspension assembly 200, and the second steel wire rope 1213 and the sliding shaft 12392 can be wound connected and extended to the side close to the second lifting mechanism 122.
  • the fourth wire rope 1223 and the sliding shaft 12391 can be wound connected and extend to the side close to the first lifting mechanism 121 and extend to the side close to the second lifting mechanism.
  • the second wire rope 1213 and the fourth wire rope 1223 on the side of the lifting mechanism 122, and the fourth wire rope 1223 and the second wire rope 1213 on the side of the first lifting mechanism 121 are fixedly connected by a plurality of locks 12393.
  • the breaker 1239 is used to ensure that when any one of the wire ropes breaks, at least one wire rope on the first hoisting mechanism 121 and the second hoisting mechanism 122 is effective, and there will be no lifting height difference between the two sides, causing lifting jams.
  • the first hoisting mechanism 121 further includes: a motor 1214 fixed on the first hoisting bracket 111, a reducer 1215, a running brake 1216, an emergency brake 1217, and a safety brake 1218.
  • the motor 1214 is used for The first reel 1211 provides driving force, the output shaft of the motor 1214 is connected to the input shaft of the reducer 1215, the output shaft of the reducer 1215 is connected to the input shaft of the first reel 1211, the running brake 1216 and the emergency brake 1217 are respectively set at the deceleration On the input shaft of the device 1215, the safety brake 1218 is provided on the input shaft of the first reel 1211.
  • the first hoisting mechanism 121 can be realized under normal operation; by braking by the running brake 1216, the emergency brake 1217 can be braked during an emergency stop, and the running brake 1216 and the emergency brake 1217 can also be disabled.
  • the safety brake 1218 is used to brake the first hoisting mechanism 121 to ensure the safety and reliability of the first hoisting mechanism 121 to the greatest extent.
  • the first lifting mechanism 121 further includes a hand wheel 1219, which is arranged on the input shaft of the motor 1214, and is used to move the gate cover 1 through the hand wheel 1219 when the motor 1215 loses power; the first lifting mechanism 121 also It includes a heat dissipation unit 12110 arranged on the motor 1214 for dissipating heat for the motor 1214.
  • the hand wheel 1219 is a worm gear structure. In the case of power loss, after the safety brake 1218 is released, the lifted heavy objects can be manually released by the handwheel 1219, which reduces the risk of heavy objects falling from high altitude and further improves the safety of the nuclear power plant equipment gates.
  • the second hoisting mechanism 122 has the same structure and configuration as the first hoisting mechanism 121, and the electronic control system is used to ensure synchronous lifting on both sides during operation to avoid additional stress on the guide rail due to the different lifting speeds on both sides, and The jamming of the lifting and lowering of the head 1 of the gate will not be repeated here.
  • the first balance unit 1233 includes: a support 12331 fixed on the first lifting bracket 111, a rotating shaft 12332 fixedly connected to the support 12331, and a balance beam rotatably connected to the rotating shaft 12332 12333, the first hanging arm 12334, the second hanging arm 12335, the first damper 12336 and the second damper 12337 hinged to the balance beam 12333.
  • the first hanging arm 12334 and the second hanging arm 12335 are symmetrically distributed along the support 12331, and one end of the first hanging arm 12334 and the second hanging arm 12335 away from the balance beam 12333 is provided with a first pulley 12338 and a second pulley 12339, respectively.
  • the first damper 12336 and the second damper 12337 are symmetrically distributed along the support 12331, and are located outside the first suspension arm 12334 and the second suspension arm 12335.
  • One end of the first damper 12336 and the second damper 12337 is fixedly connected to the balance beam 12333, and the other end is fixedly connected to the first lifting bracket 111.
  • a load cell 123310 is provided on the rotating shaft 12332 for real-time monitoring of the force state of the balance beam 12333.
  • the mechanism of the second balancing unit 1237 and the first balancing unit 1233 are exactly the same, and will not be repeated here.
  • the second balancing unit 1237 and the first balancing unit 1233 can effectively overcome the second wire rope 1213 and the fourth wire rope 1223. Keep the tension of the two wire ropes, monitor whether the wire rope is broken, and whether the lifting is stuck; when a wire rope breaks, the damper will effectively prevent the balance beam 12333 from suddenly tilting and reduce the load impact.
  • the first hoisting pulley 1231 includes: a third pulley 12311, a fourth pulley 12312, a bearing 12313, a pulley shaft 12314, a lug 12315 and a trunnion 12316, a third pulley 12311 and a fourth pulley 12312 Distributed symmetrically along the lug plate 12315, and the third pulley 12311 and the fourth pulley 12312 are fixedly connected to the pulley shaft 12314 through the bearing 12313, the trunnion 12316 passes through the lug plate 12315 transversely, and the trunnion 12316 is slidably connected to the lug plate 12315. 12316 is fixedly connected to the gate head 1, wherein the first wire rope 1212 and the third pulley 12311 can be wound and connected, and the second wire rope 1213 and the fourth pulley 12312 are wound and connected.
  • the structure of the second hoisting pulley 1232 and the first hoisting pulley 1231 are completely the same, and will not be repeated here.
  • the first lug 13 is fixedly connected to the trunnion 12316 of the first hoisting pulley 1231
  • the second lug 14 is fixedly connected to the second hoisting pulley 1232 to be driven by the first hoisting pulley 1231 and the second hoisting pulley 1232.
  • the gate head 1 can move up and down.
  • the first suspension unit 220 includes: a steel support 221, a suspension hook 222, and a spring stopper 223.
  • the steel support 221 is fixed on the high suspension support 210, and the suspension hook 222 and the steel support 221 Hingedly, the spring baffle 223 is hingedly connected to the suspension hook 222.
  • the suspension hook 222 is lifted by the first lifting lug 11, and under the action of gravity and the spring baffle 223, the suspension hook 222 is automatically hooked to the first lifting lug 11 in its position.
  • the whole assembly has a simple structure, does not contain complicated transmission mechanisms and electrical equipment, and can realize automatic suspension and unhanging actions only by raising and lowering the equipment gate; no manual operation is required, which saves the opening and closing man-hours of the equipment gate and avoids The operation errors caused by human factors are eliminated; there is no need to set up a special operation platform, which saves a lot of space and avoids interference with other structures and equipment.
  • the steel support 221 includes a first support 2211, a second support 2212 and a third support 2213 perpendicular to the first support 2211, the second support 2212 and the third support 2213 are parallel, and the second support 2212 is parallel to the third support 2213.
  • the support 2212 and the third support 2213 form an open space, and one end of the hanging hook 222 extends to the open space.
  • the suspension unit 220 further includes a pin shaft 224, which penetrates the second support 2212, the third support 2213 and the suspension hook 222 to realize the hinge connection between the suspension hook 222 and the steel support 221.
  • a first through hole and a second through hole may be provided on the second support 2212 and the third support 2213, respectively, the suspension hook 222 is provided with a third through hole, and the pin 224 penetrates the first through hole and the second through hole.
  • the through hole and the third through hole realize the hinged connection between the suspension hook 222 and the steel support 221.
  • the high suspension bracket 210 includes a number of main beams 211 perpendicular to the containment of the nuclear power plant, and a first beam 212, a second beam 213, and a third beam 214 perpendicular to the main beam 211.
  • the beam 211 is fixedly connected with the wall of the containment building of the nuclear power plant, the first beam 212, the second beam 213 and the main beam 211 form a plurality of annular spaces, and the steel support 211 is fixedly connected with the plurality of annular spaces.
  • the high suspension bracket 211 also includes a plurality of inclined support beams 215 for enhancing the stability of the high suspension bracket 210.
  • the first guide pulley 1234 and the second guide pulley 1238 are respectively fixed on both ends of the third cross beam 215.
  • the positioning unit 510 includes: a first support 511 fixedly connected to the flange of the cylinder section, a first circular rail 512 arranged inside the first support 511, and fixed to the gate head 1
  • the first roller support 515 is connected.
  • the first roller 513 is fixedly connected to the first roller support 515 through the first roller shaft 514.
  • the centering unit 520 includes: a second support member 521 fixedly connected to the flange of the cylinder section, a second circular rail 522 arranged inside the second support member 521, and a gate head 1
  • the fixedly connected second roller support 527, the second roller 523 and the third roller 524 are respectively fixedly connected to the roller support 527 through the second roller shaft 525 and the third roller shaft 526, wherein the second roller 523 and the third roller 524 are symmetrically distributed along the second circular rail 522.
  • the gate head 1 When the gate head 1 is lowered, the bottoms of the second roller 523 and the third roller 524 are in contact with the outer peripheral surface of the second circular rail 522, and the bottoms of the second roller 523 and the third roller 524 can be along the outer circumference of the second circular rail 522 When the surface rotates, under the action of gravity, the gate head 1 will automatically realize the center positioning to ensure that the gate head 1 coincides with the center of the flange of the cylinder section.
  • the gate head 1 is connected to the cylinder section flange by bolts, and its entire weight is transmitted to the cylinder section flange through friction. At this time, the bolts do not bear the shear force.
  • the positioning unit 510 and the centering unit 520 are symmetrically distributed under the gate head 1. In the extreme case of partial bolt failure and insufficient friction, the positioning unit 510 and the centering unit 520 can bear the weight of the gate head and transfer the force to On the flange of the tube section, prevent the head 1 of the gate from falling down, and further improve the safety of the gate of nuclear power plant equipment.
  • the seismic limit assembly 400 includes a first seismic support 410, a second seismic support 420, a first seismic pin 430, a second seismic pin 440, a first bolt 450 and a second bolt 460,
  • An anti-seismic support 410 and a second anti-seismic support 420 are respectively welded and connected to the containment of the nuclear power plant.
  • the first anti-seismic pin 430 and the second anti-seismic pin 440 are respectively connected to the third lug 15 and the fourth lug provided on both sides of the gate head 1.
  • the ear 16 is fixedly connected, and extends upward into the first seismic support 410 and the second seismic support 420, and is movably connected to the first seismic support 410 and the second seismic support 420, wherein the third ear 15 and the fourth support
  • the ear 16 is fixedly connected with the gate head 1 to limit the left and right movement of the gate head 1.
  • the first pin 450 and the second pin 460 are movably connected to the first seismic support 410 and the second seismic support 420, respectively. It should be noted that the axial directions of the first pin 450 and the second pin 460 are perpendicular to the axial directions of the first anti-vibration pin 430 and the second anti-vibration pin 440, and are used to restrict the gate head 1 from moving upward.
  • the first suspension unit 220, the second suspension unit 230, the first anti-seismic pin 430, and the second anti-seismic pin 440 form an isosceles trapezoid. Earthquake resistance.
  • the first translation unit 610 is fixedly connected to the first guide rail 3111.
  • the first translation unit 610 includes a first guide chute 611, a first guide block 612, and a first push-pull rod 613.
  • the first guide The sliding groove 3211 is fixedly connected with the first guide rail 1111, the first push-pull rod 613 and the first guide block 612 can be connected by pushing, the first guide block 3212 is slidably connected with the first guide sliding groove 611 through the first push-pull rod 613, and the gate seal After the head 1 is reset, it translates under the guidance of the first guide block 612.
  • the two suspension devices in the embodiment of the present invention can be arranged in the middle above the head and form a triangle with the two anti-vibration pins; they can also be arranged below the lifting mechanism and form a rectangle with the two anti-vibration pins.
  • the hoisting mechanism may not be equipped with a rope winding mechanism and a balancing unit, and both ends of the two steel wire ropes are directly fixed on the hoisting mechanism.
  • the guiding, translation, and positioning and centering devices of the equipment gate head can be controlled by manual manual operation without configuration.
  • the locating unit and the centering unit can be exchanged for arrangement positions and the arrangement angle can be changed, or two locating units or two centering units can be arranged symmetrically instead.
  • the present invention provides a gate for nuclear power plant equipment, which realizes automatic high suspension, guidance, centering, positioning and translation without manual intervention.
  • the failure of a single mechanism does not affect the operation of other mechanisms, and the equipment is improved.
  • Reliability The reasonable arrangement is adopted to make two high-position suspension hooks and two seismic pins form an isosceles trapezoid, which improves the seismic capacity of the equipment when the gate is opened.
  • the positioning and centering device is symmetrically distributed under the head. In extreme cases, it can bear the weight of the head of the gate, reduce the risk of bolt failure, and prevent the head from falling. It adopts high-position suspension components, which can be lifted by hand after normal electric lifting or power failure.
  • the automatic suspension and decoupling of the gate head can be realized without the need for electronically controlled suspension devices and manual intervention.
  • the lifting mechanism is adopted, and the safety of the lifting mechanism is improved through three brakes and hand cranking devices. Enhance the function of manually releasing lifting heavy objects after power failure; adopt a rope winding mechanism to achieve mechanical and electrical double redundancy, ensure automatic synchronization, and improve the synchronization of the operation of the lifting mechanism. At the same time, it can ensure that any wire rope breaks, and at least one wire rope on the two lifting mechanisms is effective, which improves the safety of the lifting mechanism; the use of a balance unit can effectively overcome the length difference between the two wire ropes and maintain the length of the two wire ropes. Tighten, monitor whether the wire rope is broken, and whether the lifting is stuck. At the same time, it reduces the load impact caused by the sudden breaking of the wire rope; thus, the safety and reliability of the equipment gate of the nuclear power plant and the earthquake resistance meet the requirements.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

本发明提供一种核电厂设备闸门，包括与安全壳的贯穿件固定连接的筒节，所述核电厂设备闸门还包括：闸门封头，与所述筒节端面相对应设置，用于与所述筒节进行密封连接；起吊提升组件，设置在所述闸门封头上方，与所述闸门封头可活动地连接，用于对所述闸门封头进行起吊和复位；高位悬挂组件，设置在所述闸门封头上方，用于当所述闸门封头起吊至指定位置时与所述闸门封头可拆卸连接；抗震限位组件，部分地设置在安全壳上并与所述闸门封头可活动地连接，用于在闸门封头悬挂在所述高位悬挂组件上时，对闸门封头进行限位和抗震。本发明保证了核电厂设备闸门的安全可靠性和抗震要求。

Description

核电厂设备闸门 技术领域
本发明属于核电技术领域，更具体地说，本发明涉及一种核电厂设备闸门。
背景技术
核电厂设备闸门是供大型设备进出的一道闸门。在核电厂建造和停堆换料期间，打开设备闸门，作为反应堆厂房内大型设备(如蒸汽发生器等)的进出通道。在核电厂运行期间和事故状态下，设备闸门处于关闭状态，与反应堆安全壳一起组成第三道屏障，防止放射性物质外泄，是安全壳压力边界的一部分。
相关技术中，一种方案是：将设备闸门起吊装置安装在门洞上方正中间，由两台起升机构组成，两台起升机构中间由刚性轴连接，以保持起吊的同步性。但是运行后两台起升机构的钢丝绳长短会不一样，需拆卸刚性轴来调整，运行维护非常麻烦。闸门封头依靠起升机构上的钢丝绳实现下降和提升，该过程中没有导向装置，在起吊过程中难保持平稳。当起吊最高位置时，由高位悬挂装置挂住闸门封头，无其它抗震辅助机构。关闭设备闸门时，需操作员手动操作悬挂装置手柄，保持挂钩在撑开位置，使封头可以下落。在闸门封头下部两侧设置有定位装置和对中装置，用于闸门关闭时封头法兰螺栓孔的对中。封头到达门洞位置时，依靠人工平推封头与法兰配对连接。
相关技术中，另一种方案为：设备闸门起吊装置也由两台起升机构组成，与导向装置一起布置在门洞上方的两边，通过电控系统保持两台起升机构的同 步性，但其安全可靠性不如机械系统。闸门由两边的导向装置同时实现封头的导向、悬挂、平移、对中、定位等多种功能，自动化程度高，操作方便，但由于高度集成，任何机构的失效将导致闸门无法快速关闭。
相关技术中，再一种方案为：设备闸门安装在门洞上方正中间，由一台起升机构组成。设置有独立的高位悬挂吊耳、导向导轨、定位滚轮。封头到达门洞位置时，依靠人工平推封头与法兰配对连接。封头到最高位置时，依靠人工挂住吊耳，无其它抗震辅助机构。
因此，急需寻求一种核电厂设备闸门，解决现有技术中存在的核电厂设备闸门的安全可靠性不高和抗震不满足要求的技术问题。
发明内容
本发明针对现有技术中存在的核电厂设备闸门的安全可靠性不高和抗震不满足要求的问题，提供了一种安全可靠的核电厂设备闸门。
本发明就上述技术问题而提出的技术方案如下：一种核电厂设备闸门，包括与安全壳的贯穿件固定连接的筒节，所述核电厂设备闸门还包括：闸门封头，与所述筒节端面相对应设置，用于与所述筒节进行密封连接；起吊提升组件，设置在所述闸门封头上方，与所述闸门封头可活动地连接，用于对闸门封头进行起吊和复位；高位悬挂组件，设置在所述闸门封头上方，用于当所述闸门封头起吊至指定位置时与所述闸门封头可拆卸连接；抗震限位组件，部分地设置在安全壳上并与所述闸门封头可活动地连接，用于在闸门封头悬挂在所述高位悬挂组件上时，对闸门封头进行限位和抗震。
根据本发明核电厂设备闸门的一种改进，所述核电厂设备闸门还包括：导 向组件，设置在所述闸门封头两边，用于在闸门封头下降复位时，对所述闸门封头进行导向；定位对中组件，设置在所述闸门封头的外侧面以及与闸门封头外侧面所对应的筒节法兰处，用于对闸门封头相对筒节的位置进行对中及定位以实现两者之间的密封连接。
根据本发明核电厂设备闸门的一种改进，所述起吊提升组件包括对称分布在所述闸门封头两侧的两个起吊支架以及分别对应固定设置在两个所述起吊支架上的两个起升机构；所述起升机构用于对闸门封头进行起吊和复位；所述起吊支架用于在所述对闸门封头进行起吊和复位过程中进行导向；所述起吊提升组件还包括控制单元，所述控制单元分别与两个所述起升机构连接，用于控制两个所述起升机构同步工作。
根据本发明核电厂设备闸门的一种改进，所述起吊支架包括第一起吊支架和第二起吊支架，所述起升机构包括分别固定在所述第一起吊支架和第二起吊支架上的第一起升机构、第二起升机构以及连接所述第一起升机构、第二起升机构的绕绳机构，所述第一起升机构包括：第一卷筒、缠绕在所述第一卷筒上的第一钢丝绳和第二钢丝绳、所述第一钢丝绳一端与所述第一卷筒固定连接，另一端与所述第一起吊平台固定连接；所述第二起升机构包括：第二卷筒、缠绕在所述第二卷筒上的第三钢丝绳和第四钢丝绳、所述第三钢丝绳一端与所述第二卷筒固定连接，另一端与所述第二起吊平台固定连接；所述绕绳机构包括：与所述第一钢丝绳、第二钢丝绳缠绕连接的第一起吊滑轮、第一平衡单元和第一导向滑轮、与所述第三钢丝绳、第四钢丝绳缠绕连接的第二起吊滑轮、第二平衡单元和第二导向滑轮，以及连接第二钢丝绳和第四钢丝绳的防断器，所述防断器用于实现所述第一起升机构与第二起升机构工作安全性。
根据本发明核电厂设备闸门的一种改进，所述第二钢丝绳一端固定连接所述第一卷筒，另一端依次与第二起吊滑轮、第一平衡单元、第一导向滑轮、防断器可缠绕连接；所述第四钢丝绳一端固定连接所述第二卷筒，另一端依次与接第四起吊滑轮、第二平衡单元、第二导向滑轮、防断器可缠绕连接。
根据本发明核电厂设备闸门的一种改进，所述防断器包括滑动槽，设置在所述滑动槽内并与滑动槽滑动连接的滑动轴，所述滑动槽与高位悬挂组件固定连接，所述第二钢丝绳与所述滑动轴可缠绕连接，并延伸至靠近第二起升机构一侧，所述第四钢丝绳与所述滑动轴可缠绕连接，并延伸至靠近第一起升机构一侧，且延伸至靠近第二起升机构一侧的第二钢丝绳与第四钢丝绳，延伸至靠近第一起升机构一侧的第四钢丝绳与第二钢丝绳均通过若干锁扣固定连接。
根据本发明核电厂设备闸门的一种改进，所述第一起升机构还包括：固定在所述第一起吊支架上的电机、减速器、运行制动器、紧急制动器和安全制动器，所述电机用于为所述第一卷筒提供驱动力，所述减速器包括输入轴，所述电机的输出轴连接所述减速器的输入轴，所述减速器的输出轴连接所述第一卷筒的输入轴，所述运行制动器和紧急制动器分别对应设置在所述减速器的输入轴上，所述安全制动器设置在所述第一卷筒的输入轴。
根据本发明核电厂设备闸门的一种改进，所述第一起升机构还包括手轮，所述手轮设置在所述电机的输入轴上，用于在电机失电时，通过手轮移动所述闸门封头；所述第一起升机构还包括设置在电机内部的散热单元，用于为所述电机散热。
根据本发明核电厂设备闸门的一种改进，所述第一平衡单元包括：固定在所述第一起吊支架上的支座，与所述支座固定连接的旋转轴，与所述旋转轴可 旋转连接的平衡梁，与所述平衡梁铰接的第一挂臂、第二挂臂以及第一阻尼器和第二阻尼器，所述第一挂臂和第二挂臂沿所述支座对称分布，且所述第一挂臂和第二挂臂远离所述平衡梁的一端分别设置有第一滑轮和第二滑轮，所述第一阻尼器和第二阻尼器沿所述支座对称分布，且位于所述第一挂臂和第二挂臂外侧，所述第一阻尼器和第二阻尼器一端与所述平衡梁固定连接，另一端与所述第一起吊支架固定连接；所述旋转轴上设置有称重传感器，用于实时监测所述支撑梁的受力状态。
根据本发明核电厂设备闸门的一种改进，所述第一起吊滑轮包括：第三滑轮、第四滑轮、轴承、滑轮轴、耳板和耳轴，所述第三滑轮和第四滑轮沿耳板对称分布，且第三滑轮和第四滑轮均通过所述轴承与滑轮轴固定连接，所述耳轴横向贯通所述耳板，且所述耳轴与耳板滑动连接，所述耳板与所述闸门封头固定连接，所述第一钢丝绳与所述第三滑轮可缠绕连接，所述第二钢丝绳与所述第四滑轮可缠绕连接。
根据本发明核电厂设备闸门的一种改进，所述闸门封头上部对称设置有第一支耳和第二支耳，所述第二支耳与所述第二起吊滑轮固定连接，所述第一支耳与所述耳轴固定连接，用于在第一起吊滑轮和第二起吊滑轮带动下向上移动。
根据本发明核电厂设备闸门的一种改进，所述高位悬挂组件包括设置在闸门封头正上方的高位悬挂支架以及与所述高位悬挂支架固定连接的第一悬挂单元和第二悬挂单元，所述第一悬挂单元和第二悬挂单元用于当所述闸门封头打开时，分别与设置在所述闸门封头两侧的第一吊耳和第二吊耳可拆卸连接；所述第一吊耳和第二吊耳分别与所述闸门封头焊接连接。
根据本发明核电厂设备闸门的一种改进，所述第一悬挂单元包括：钢支座、 悬挂钩以及弹簧挡片，所述钢支座固定在所述高位悬挂支架上，所述悬挂钩与所述钢支座铰接，所述弹簧挡片与所述悬挂钩铰接，当所述闸门封头向上移动至指定位置时，所述第一吊耳顶开所述弹簧挡片与所述悬挂钩可拆卸连接。
根据本发明核电厂设备闸门的一种改进，所述钢支座包括第一支座以及与第一支座垂直的第二支座和第三支座，所述第二支座和第三支座平行，且所述第二支座和第三支座形成一开放空间，所述悬挂钩一端延伸至所述开放空间，所述悬挂单元还包括销轴，所述销轴贯穿所述第二支座、第三支座和悬挂钩，实现所述悬挂钩与所述钢支座的铰接。
根据本发明核电厂设备闸门的一种改进，所述高位悬挂支架包括若干根垂直于所述核电厂安全壳的主梁，以及与所述主梁垂直的第一横梁、第二横梁和第三横梁，所述主梁与所述核电厂安全壳厂房的墙壁固定连接，所述第一横梁、第二横梁与所述主梁形成若干环形空间，所述钢支座与若干所述环形空间固定连接，所述高位悬挂支架还包括若干斜支撑梁，用于增强所述高位悬挂支架的稳定性，所述第一导向滑轮和第二导向滑轮分别固定在所述第三横梁的两端。
根据本发明核电厂设备闸门的一种改进，所述导向组件包括：第一导向单元，所述第一导向单元包括竖直设置的第一导轨以及能够沿第一导轨上下移动的第一导向轮，所述第一导向轮一端与闸门封头固定连接，另一端与所述第一导轨可滑动连接；第二导向单元，所述第二导向单元包括竖直设置的第二导轨以及能够沿第二导轨上下移动的第二导向轮，所述第二导向轮一端与闸门封头固定连接，另一端与所述第二导轨可滑动连接。
根据本发明核电厂设备闸门的一种改进，所述定位对中组件包括定位单元和对中单元：所述定位单元包括：与筒节法兰固定连接的第一支撑件，设置在 第一支撑件内部的第一圆轨，以及与闸门封头固定连接的第一滚轮支座，第一滚轮通过第一滚轮轴与所述第一滚轮支座固定连接，用于实现闸门封头的高度上的定位；所述对中单元包括：与所述筒节法兰固定连接的第二支撑件，设置在第二支撑件内部的第二圆轨，以及与闸门封头固定连接的第二滚轮支座，第二滚轮和第三滚轮分别通过第二滚轮轴和第三滚轮轴与所述第二滚轮支座固定连接，用于实现闸门封头的自动对中。
根据本发明核电厂设备闸门的一种改进，所述抗震限位组件包括第一抗震支架、第二抗震支架、第一抗震销、第二抗震销、第一插销和第二插销，所述第一抗震支架和第二抗震支架分别与核电厂安全壳焊接连接，所述第一抗震销和第二抗震销分别与所述第三支耳和第四支耳焊接连接，所述第一抗震销和第二抗震销分别插入所述第一销孔和第二销孔，用于限制所述闸门封头左右移动，所述第一插销和第二插销分别与第一抗震支架、第二抗震支架固定连接，用于限制所述闸门封头上下移动。
根据本发明核电厂设备闸门的一种改进，所述平移组件包括第一平移单元和第二平移单元，所述第一平移单元和第二平移单元分别对应与所述第一导轨和第二导轨固定连接，所述第一平移单元包括第一导向滑槽、第一导向块、第一推杆，所述第一导向滑槽与所述第一导轨固定连接，第一推拉杆与所述第一导向块可推动连接，所述第一导向块通过所述第一推拉杆与所述第一导向滑槽可滑动连接，所述闸门封头在所述第一导向块的导向作用下平移。
根据本发明核电厂设备闸门的一种改进，所述核电厂设备闸门还包括上供工作人员操作所需的位于不同高度的钢平台，不同高度的钢平台之间通过爬梯连接。
本发明提供的技术方案带来的有益效果是：本发明针对现有技术中存在的核电厂设备闸门的安全可靠性不高和抗震不满足要求的技术问题，提供了一种核电厂设备闸门，实现核电厂设备闸门自动的高位悬挂、导向、对中、定位和平移，无需人工介入操作，单个机构失效不影响其它机构的运行，提升了设备可靠性。
附图说明
图1是本发明实施例提供的一种核电厂设备闸门的结构示意图；
图2是本发明实施例提供的一种核电厂设备闸门的起升机构的结构示意图；
图3是本发明实施例提供的一种核电厂设备闸门的防断器的结构示意图；
图4是本发明实施例提供的一种核电厂设备闸门的第一起升机构的结构示意图；
图5是发明实施例提供的一种核电厂设备闸门的第一平衡单元的结构示意图；
图6是发明实施例提供的一种核电厂设备闸门的第一起吊滑轮的结构示意图；
图7是发明实施例提供的一种核电厂设备闸门的第一悬挂单元的结构示意图；
图8是发明实施例提供的一种核电厂设备闸门的第一高位悬挂支架的结构示意图；
图9是发明实施例提供的一种核电厂设备闸门的定位单元的结构示意图；
图10是发明实施例提供的一种核电厂设备闸门的对中单元的结构示意图；
图11是发明实施例提供的一种核电厂设备闸门的抗震限位组件的结构示意图；
图12是发明实施例提供的一种核电厂设备闸门的第一平移单元的结构示意图。
具体实施方式
为了解决现有技术中所存在的核电厂设备闸门的安全可靠性不高和抗震不满足要求的问题，本发明旨在提供一种核电厂设备闸门，其核心思想是：提供一种核电厂设备闸门，其中，单个机构失效不影响其它机构的运行，提升了设备可靠性；设置定位对中组件对称分布在封头下方，在极端情况下，能承受闸门封头重量，减轻螺栓失效风险，防止封头跌落；采用新型的高位悬挂组件，在正常电动起吊或失电后手摇起升机构过程中，均可以实现闸门封头的自动悬挂和脱钩，无须电控操作悬挂装置，也无须人工干预；采用新型带有绕绳机构的起升机构，实现机械、电气双重冗余，保障自动同步，改善起升机构运行的同步性。同时，能保证任何一根钢丝绳断裂，两个起升机构上至少有一根钢丝绳有效，改善了起升机构的安全性；从而实现核电厂设备闸门的安全可靠性和抗震满足要求。
为使本发明的发明目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
实施例
本发明实施例提供了一种核电厂设备闸门，包括与安全壳的贯穿件固定连 接的筒节，如图1所示，核电厂设备闸门还包括：
闸门封头1，与筒节端面相对应设置，通过筒节法兰与筒节进行密封连接，实现筒节的启闭；
起吊提升组件100，设置在闸门封头1上方，与闸门封头1可活动地连接，用于对闸门封头1进行起吊和复位，实现筒节与闸门封头1的密封和开启；
高位悬挂组件200，设置在闸门封头1上方，用于当闸门封头1起吊至指定位置时与闸门封头1可拆卸连接，实现闸门封头1在起吊后的固定；
抗震限位组件400，部分地设置在安全壳上并与闸门封头1可活动地连接，用于在闸门封头1悬挂在高位悬挂组件200上时，对闸门封头1进行限位和抗震。防止闸门封头1在地震情况下，前后左右晃动，上下串动，有效提升核电厂设备闸门的抗震能力。
进一步地，本发明核电厂设备闸门还包括：
导向组件300，设置在闸门封头1两边，用于在闸门封头1下降复位时，对闸门封头1进行导向；
定位对中组件500，设置在闸门封头1的外侧面以及与闸门封头1外侧面所对应的筒节法兰处，用于对闸门封头1相对筒节的位置进行对中及定位以实现两者之间的密封连接。
其中，导向组件300包括：
第一导向单元310，第一导向单元310包括竖直设置的第一导轨311以及能够沿第一导轨311上下移动的第一导向轮312，第一导向轮312一端与闸门封头1固定连接，另一端与第一导轨311可滑动连接；
第二导向单元320，第二导向单元320包括竖直设置的第二导轨321以及能 够沿第二导轨321上下移动的第二导向轮322，第二导向轮322一端与闸门封头1固定连接，另一端与第二导轨321可滑动连接。通过设置导向组件300，可使闸门封头1在起吊和复位过程中被导向，在起吊和复位过程中保持平稳。
定位对中组件500包括定位单元510和对中单元520；定位单元510和对中单元520用于在闸门封头1落下时，实现闸门封头1的高度上的定位，并根据重力，自动实现中心定位，保证闸门封头1与筒节法兰中心重合。
进一步地，由图1中还可看出：核电厂设备闸门还包平移组件600，平移组件600包括第一平移单元610和第二平移单元620，第一平移单元610和第二平移单元620分别对应与第一导轨311和第二导轨321固定连接，用于在核电厂设备闸门关闭时，闸门封头1下降到相对于筒节端面的位置，将闸门封头1推向筒节法兰与之闭合。
进一步地，由图1中还可看出：起吊提升组件100包括对称分布在闸门封头1两侧的两个起吊支架110以及分别对应固定设置在两个起吊支架110上的两个起升机构120；起升机构120用于对闸门封头1进行起吊和复位；起吊支架110用于支撑起升机构120，其中，起吊提升组件100还包括控制单元，控制单元分别与两个起升机构120可控制地连接，用于控制两个起升机构120同步工作。保证闸门封头1起吊和复位中的稳定性，保证核电厂设备闸门的安全性。
进一步地，起吊支架110包括：第一起吊支架111和第二起吊支架112，需要说明的是：第一起吊支架111和第二起吊支架112不与第一导轨311或第二导轨321固定连接，从而实现当核电厂发生地震及其他引起震动的事件，提供一定自由度。同时，由于第一导轨311或第二导轨321均很长，通过设置其不固定，留有一定自由度，可避免第一导轨311或第二导轨321被损坏，提高核 电厂设备闸门的使用寿命。
进一步地，闸门封头1上分别焊接有第一吊耳11、第二吊耳12、第一支耳13、第二支耳14，其中，第一吊耳11、第二吊耳12对称设置在闸门封头1上部，第一支耳13和第二支耳14对称设置在闸门封头1中部，用于实现闸门封头1的起吊。
进一步地，起升机构120包括分别固定在第一起吊支架111和第二起吊支架112上的第一起升机构121、第二起升机构122，第一起升机构121、第二起升机构122设置的高度相同，用于提供动力以实现闸门封头1的起吊和复位。
进一步地，高位悬挂组件200包括设置在闸门封头1正上方的高位悬挂支架210以及与高位悬挂支架210固定连接的第一悬挂单元220和第二悬挂单元230，第一悬挂单元220和第二悬挂单元230用于当闸门封头1打开时，分别与第一吊耳11和第二吊耳12可拆卸连接。
进一步地，核电厂设备闸门还包括供工作人员操作所需的位于不同高度的钢平台700，不同高度的钢平台700之间通过爬梯800连接。钢平台700与闸门封头1固定连接，爬梯800与不同高度的钢平台700固定连接。
进一步地，如图2所示，起升机构120还包括连接第一起升机构121、第二起升机构122的绕绳机构123，第一起升机构121包括：第一卷筒1211、缠绕在第一卷筒1211上的第一钢丝绳1212和第二钢丝绳1213，第一钢丝绳1212一端与第一卷筒1211固定连接，另一端与第一起吊支架111固定连接。
第二起升机构122包括：第二卷筒1221、缠绕在第二卷筒1221上的第三钢丝绳1222和第四钢丝绳1223，第三钢丝绳1222一端与第二卷筒1221固定连接，另一端与第二起吊支架112固定连接。
其中，绕绳机构123包括：与第一钢丝绳1212、第二钢丝绳1213缠绕连接的第一起吊滑轮1231、第一平衡单元1233和第一导向滑轮1234、与第三钢丝绳1222、第四钢丝绳1223缠绕连接的第三起吊滑轮1232、第二平衡单元1237和第二导向滑轮1238，以及连接第二钢丝绳1213和第四钢丝绳1223的防断器1239，防断器1239用于实现第一起升机构与121第二起升机构122工作安全性。需要说明的是：第一平衡单元1233和第二平衡单元1237分别与第一起吊支架111和第二起吊支架112固定连接。
其中，第二钢丝绳1213一端固定连接第一卷筒1211，另一端依次与第一起吊滑轮1231、第一平衡单元1233、第一导向滑轮1234、防断器可1239缠绕连接；第四钢丝绳1223一端固定连接第二卷筒1221，另一端依次与第二起吊滑轮1232、第二平衡单元1237、第二导向滑轮1238、防断器1239可缠绕连接。
进一步地，如图3所示，防断器1239包括滑动槽12391，设置在滑动槽12391内并与滑动槽12391滑动连接的滑动轴12392，滑动槽12392与高位悬挂组件200固定连接，第二钢丝绳1213与滑动轴12392可缠绕连接并延伸至靠近第二起升机构122一侧，第四钢丝绳1223与滑动轴12391可缠绕连接并延伸至靠近第一起升机构121一侧，延伸至靠近第二起升机构122一侧的第二钢丝绳1213与第四钢丝绳1223，延伸至靠近第一起升机构121一侧的第四钢丝绳1223与第二钢丝绳1213均通过若干锁扣12393固定连接。防断器1239用于保证当其中任何一根钢丝绳断裂，第一起升机构与121第二起升机构122上至少有一根钢丝绳有效，并且两边不会出现起吊高差，引起起吊卡滞。
进一步地，如图4所示，第一起升机构121还包括：固定在第一起吊支架111上的电机1214、减速器1215、运行制动器1216、紧急制动器1217和安全 制动器1218，电机1214用于为第一卷筒1211提供驱动力，电机1214的输出轴连接减速器1215的输入轴，减速器1215的输出轴连接第一卷筒1211的输入轴，运行制动器1216和紧急制动器1217分别对应设置在减速器1215的输入轴上，安全制动器1218设置在第一卷筒1211的输入轴上。通过设置运行制动器1216、可实现第一起升机构121可在正常运行下；通过运行制动器1216制动，可在紧急停车时通过紧急制动器1217制动，同时也可在运行制动器1216、紧急制动器1217失效时，通过安全制动器1218对第一起升机构121进行制动，最大程度的保证第一起升机构121的安全可靠性。
进一步地，第一起升机构121还包括手轮1219，手轮1219设置在电机1214的输入轴上，用于在电机1215失电时通过手轮1219移动闸门封头1；第一起升机构121还包括设置在电机1214上的散热单元12110，用于为电机1214散热。其中，手轮1219为涡轮蜗杆结构。在失电情况下，松开安全制动器1218后，可以通过手轮1219手摇释放起吊的重物，降低重物高空坠落的风险，进一步提高核电厂设备闸门的安全性。
需要说明的是，第二起升机构122与第一起升机构121结构、配置相同，在工作的时候通过电控系统保证两边同步起吊，避免因两边升降速度不同而对导轨产生额外的应力，以及闸门封头1升降的卡滞，在此不做赘述。
进一步地，如图5所示：第一平衡单元1233包括：固定在第一起吊支架111上的支座12331，与支座12331固定连接的旋转轴12332，与旋转轴12332可旋转连接的平衡梁12333，与平衡梁12333铰接的第一挂臂12334、第二挂臂12335以及第一阻尼器12336和第二阻尼器12337。第一挂臂12334和第二挂臂12335沿支座12331对称分布，且第一挂臂12334和第二挂臂12335远离平衡梁12333 的一端分别设置有第一滑轮12338和第二滑轮12339。第一阻尼器12336和第二阻尼器12337沿支座12331对称分布，且位于第一挂臂12334和第二挂臂12335外侧。第一阻尼器12336和第二阻尼器12337一端与平衡梁12333固定连接，另一端与第一起吊支架111固定连接。旋转轴12332上设置有称重传感器123310，用于实时监测平衡梁12333的受力状态。
需要说明的是，第二平衡单元1237与第一平衡单元1233的机构完全相同，在此不做赘述，第二平衡单元1237与第一平衡单元1233可以有效克服第二钢丝绳1213和第四钢丝绳1223的长度差，保持两根钢丝绳的张紧，监测钢丝绳是否断裂、起吊是否出现卡滞；当一根钢丝绳断裂后，阻尼器将有效阻止平衡梁12333突然发生倾斜，减轻载荷冲击。
进一步地，如图6所示，第一起吊滑轮1231包括：第三滑轮12311、第四滑轮12312、轴承12313、滑轮轴12314、耳板12315和耳轴12316，第三滑轮12311和第四滑轮12312沿耳板12315对称分布，且第三滑轮12311和第四滑轮12312均通过轴承12313与滑轮轴12314固定连接，耳轴12316横向贯通耳板12315，且耳轴12316与耳板12315滑动连接，耳轴12316与闸门封头1固定连接，其中，第一钢丝绳1212与第三滑轮12311可缠绕连接，第二钢丝绳1213与第四滑轮12312缠绕连接。
需要说明的是：第二起吊滑轮1232与第一起吊滑轮1231的结构完全相同，在此不做赘述。其中，第一支耳13与第一起吊滑轮1231的耳轴12316固定连接，第二支耳14与第二起吊滑轮1232固定连接，用于在第一起吊滑轮1231和第二起吊滑轮1232带动下实现闸门封头1上下移动。
进一步地，如图7所示，第一悬挂单元220包括：钢支座221、悬挂钩222 以及弹簧挡片223，钢支座221固定在高位悬挂支架210上，悬挂钩222与钢支座221铰接，弹簧挡片223与悬挂钩222铰接。当闸门封头1到达高位悬挂位置时，通过第一吊耳11顶开悬挂钩222，在重力和弹簧挡片223作用下，悬挂钩222回位自动钩住第一吊耳11。关闭设备闸门时，先提升闸门封头1撑开弹簧挡片223后，弹簧挡片223回位，然后闸门封头1下落，第一吊耳11顺着弹簧挡片223将悬挂钩222顶开并下落，从而实现闸门封头1的自动悬挂和解挂操作。整个组件结构简单，不含复杂的传动机构和用电设备，仅依靠设备闸门的上升和下降就可实现自动悬挂和解挂动作；不需要人工进行操作，节省了设备闸门的开启及关闭工时，避免了由人因造成的操作失误；不需要设置专门的操作平台，节省了大量空间，避免与其他结构及设备发生干涉。
进一步地，钢支座221包括第一支座2211以及与第一支座2211垂直的第二支座2212和第三支座2213，第二支座2212和第三支座2213平行，且第二支座2212和第三支座2213形成一开放空间，悬挂钩222一端延伸至开放空间。悬挂单元220还包括销轴224，销轴224贯穿第二支座2212、第三支座2213和悬挂钩222，实现悬挂钩222与钢支座221的铰接。具体地，可在第二支座2212和第三支座2213上分别设置第一通孔和第二通孔，悬挂钩222上设置第三通孔，销轴224贯穿第一通孔、第二通孔和第三通孔，实现悬挂钩222与钢支座221的铰接。
进一步地，如图8所示：高位悬挂支架210包括若干根垂直于核电厂安全壳的主梁211，以及与主梁211垂直的第一横梁212、第二横梁213和第三横梁214，主梁211与核电厂安全壳厂房的墙壁固定连接，第一横梁212、第二横梁213与主梁211形成若干环形空间，钢支座211与若干环形空间固定连接。高位 悬挂支架211还包括若干斜支撑梁215，用于增强高位悬挂支架210的稳定性，第一导向滑轮1234和第二导向滑轮1238分别固定在第三横梁215的两端。
进一步地，如图9所示：定位单元510包括：与筒节法兰固定连接的第一支撑件511、设置在第一支撑件511内部的第一圆轨512，以及与闸门封头1固定连接的第一滚轮支座515，第一滚轮513通过第一滚轮轴514与第一滚轮支座515固定连接，闸门封头1下降时，第一滚轮513的底部与第一圆轨512的顶部接触，实现高度上的定位。
进一步地，如图10所示：对中单元520包括：与筒节法兰固定连接的第二支撑件521，设置在第二支撑件521内部的第二圆轨522，以及与闸门封头1固定连接的第二滚轮支座527，第二滚轮523和第三滚轮524分别通过第二滚轮轴525和第三滚轮轴526与滚轮支座527固定连接，其中，第二滚轮523和第三滚轮524沿第二圆轨522对称分布。闸门封头1下降时，第二滚轮523和第三滚轮524的底部与第二圆轨522外周面相接触，且第二滚轮523和第三滚轮524的底部可沿着第二圆轨522的外周面转动，在重力作用下，闸门封头1会自动实现中心定位，保证闸门封头1与筒节法兰中心重合。
需要说明的是，闸门封头1通过螺栓与筒节法兰连接，其全部重量通过摩擦力传递到筒节法兰上，此时螺栓并不承受剪力。定位单元510和对中单元520对称分布在闸门封头1下方，在部分螺栓失效和摩擦力不足的极端情况下，定位单元510和对中单元520可以承受闸门封头重量，并将力传递到筒节法兰上，防止闸门封头1跌落，进一步提高核电厂设备闸门的安全性。
进一步地，如图11所示，抗震限位组件400包括第一抗震支架410、第二抗震支架420、第一抗震销430、第二抗震销440、第一插销450和第二插销460， 第一抗震支架410和第二抗震支架420分别与核电厂安全壳焊接连接，第一抗震销430和第二抗震销440分别与设置在闸门封头1两侧的第三支耳15和第四支耳16固定连接，并向上延伸至第一抗震支架410和第二抗震支架420内，与第一抗震支架410和第二抗震支架420可活动地连接，其中，第三支耳15和第四支耳16与闸门封头1固定连接，用于限制闸门封头1左右移动，第一插销450和第二插销460分别与第一抗震支架410、第二抗震支架420可活动地连接。需要说明的是，第一插销450和第二插销460的轴向与第一抗震销430和第二抗震销440的轴向垂直，用于限制闸门封头1向上移动。第一悬挂单元220、第二悬挂单元230和第一抗震销430、第二抗震销440组成一个等腰梯形，闸门封头1重心位与梯形内中轴线附近，有效提升了核电厂设备闸门的抗震能力。
进一步地，如图12所示，第一平移单元610与第一导轨3111固定连接，第一平移单元610包括第一导向滑槽611、第一导向块612和第一推拉杆613，第一导向滑槽3211与第一导轨1111固定连接，第一推拉杆613与第一导向块612可推动连接，第一导向块3212通过第一推拉杆613与第一导向滑槽611可滑动连接，闸门封头1复位后在第一导向块612的导向作用下平移。
需要说明的是，第二平移单元322与第一平移单元321的结构完全相同，在此不做赘述。
可以理解的是：本发明实施例中两个悬挂装置可以布置在封头上方正中间，与两个抗震销形成三角形；也可以布置在起升机构下方，与两个抗震销形成长方形。起升机构可以不配置绕绳机构和平衡单元，两根钢丝绳两头均直接固定在起升机构上。设备闸门封头的导向、平移、定位对中装置均可以不配置，通过人工手动操作控制。定位单元、对中单元可以交换布置位置，改变布置角度， 也可以用两个定位单元或两个对中单元对称布置代替。
综上所述，本发明提供了一种核电厂设备闸门，实现了自动的高位悬挂、导向、对中、定位和平移，无需人工介入操作，单个机构失效不影响其它机构的运行，提升了设备可靠性；采用合理的布置，使两个高位悬挂挂钩和两个抗震销组成一个等腰梯形，提升了设备闸门开启状态下的抗震能力。定位对中装置对称分布在封头下方，在极端情况下，能承受闸门封头重量，减轻螺栓失效风险，防止封头跌落；采用高位悬挂组件，在正常电动起吊或失电后手摇起升机构过程中，均可以实现闸门封头的自动悬挂和脱钩，无须电控操作悬挂装置，也无须人工干预；采用起升机构，通过三个制动器和手摇装置，提升起升机构的安全性，增强失电后手动释放起吊重物的功能；采用绕绳机构，实现机械、电气双重冗余，保障自动同步，改善起升机构运行的同步性。同时，能保证任何一根钢丝绳断裂，两个起升机构上至少有一根钢丝绳有效，提升了起升机构的安全性；采用平衡单元，可以有效克服两根钢丝绳的长度差，保持两根钢丝绳的张紧，监测钢丝绳是否断裂、起吊是否出现卡滞。同时，减轻钢丝绳突然断裂产生的载荷冲击；从而实现核电厂设备闸门的安全可靠性和抗震满足要求。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (23)

  1. 一种核电厂设备闸门，包括与安全壳的贯穿件通过筒节法兰固定连接的筒节，其特征在于，所述核电厂设备闸门还包括：
    闸门封头(1)，与所述筒节端面相对应设置，密封连接所述筒节；
    起吊提升组件(100)，设置在所述闸门封头(1)上方，与所述闸门封头(1)可活动地连接，用于对所述闸门封头(1)进行起吊和复位；
    高位悬挂组件(200)，设置在所述闸门封头(1)上方，当所述闸门封头(1)起吊至指定位置时与所述闸门封头(1)可拆卸连接；以及
    抗震限位组件(400)，部分地设置在安全壳上并与所述闸门封头(1)可活动地连接，在所述闸门封头(1)悬挂在所述高位悬挂组件(200)上时，对闸门封头(1)进行限位和抗震。
  2. 根据权利要求1所述的核电厂设备闸门，其特征在于，所述核电厂设备闸门还包括：
    导向组件(300)，设置在所述闸门封头(1)两边，用于在闸门封头(1)下降复位时，对所述闸门封头(1)进行导向；
    定位对中组件(500)，分别设置在所述闸门封头(1)的外侧面以及与闸门封头(1)外侧面所对应的筒节法兰处，用于对闸门封头(1)相对筒节的位置进行对中及定位以实现两者之间的密封连接。
  3. 根据权利要求1所述的核电厂设备闸门，其特征在于，所述起吊提升组件(100)包括对称分布在所述闸门封头(1)两侧的两个起吊支架(110)以及分别对应固定设置在两个所述起吊支架(110)上的两个起升机构(120)；所述 起升机构(120)用于对闸门封头(1)进行起吊和复位；所述起吊支架(110)用于支撑所述起升机构(120)；
    所述起吊提升组件(100)还包括控制单元，所述控制单元分别与两个所述起升机构(120)连接，用于控制两个所述起升机构(120)同步工作。
  4. 根据权利要求3所述的核电厂设备闸门，其特征在于，所述起吊支架(110)包括第一起吊支架(111)和第二起吊支架(112)，所述起升机构(120)包括分别固定在所述第一起吊支架(111)和第二起吊支架(112)上的第一起升机构(121)、第二起升机构(122)以及连接所述第一起升机构(121)、第二起升机构(122)的绕绳机构(123)。
  5. 根据权利要求4所述的核电厂设备闸门，其特征在于，所述第一起升机构(121)包括：第一卷筒(1211)、缠绕在所述第一卷筒(1211)上的第一钢丝绳(1212)和第二钢丝绳(1213)，所述第一钢丝绳(1212)一端与所述第一卷筒(1211)固定连接，另一端与所第一起吊支架(111)固定连接。
  6. 根据权利要求4所述的核电厂设备闸门，其特征在于，所述第二起升机构(122)包括：第二卷筒(1221)、缠绕在所述第二卷筒(1221)上的第三钢丝绳(1222)和第四钢丝绳(1223)，所述第三钢丝绳(1222)一端与所述第二卷筒(1221)固定连接，另一端与所述第二起吊支架(112)固定连接；
  7. 根据权利要求4所述的核电厂设备闸门，其特征在于，所述绕绳机构(123)包括：与所述第一钢丝绳(1212)、第二钢丝绳(1213)缠绕连接的第一起吊滑轮(1231)、第一平衡单元(1233)和第一导向滑轮(1234)、与所述第三钢丝绳(1222)、第四钢丝绳(1223)缠绕连接的第二起吊滑轮(1232)、第二平衡单元(1237)和第二导向滑轮(1238)，以及连接第二钢丝绳(1213)和第四钢 丝绳(1223)的防断器(1239)，所述防断器(1239)用于实现所述第一起升机构(121)与第二起升机构(122)工作安全性。
  8. 根据权利要求4所述的核电厂设备闸门，其特征在于，所述第二钢丝绳(1213)一端固定连接所述第一卷筒(1211)，另一端依次与第一起吊滑轮(1231)、第一平衡单元(1233)、第一导向滑轮(1234)、防断器(1239)可缠绕连接；
    所述第四钢丝绳(1223)一端固定连接所述第二卷筒(1221)，另一端依次与第二起吊滑轮(1232)、第二平衡单元(1237)、第二导向滑轮(1238)、防断器(1239)可缠绕连接。
  9. 根据权利要求7或8所述的核电厂设备闸门，其特征在于，所述防断器(1239)包括滑动槽(12391)，设置在所述滑动槽(12391)内并与滑动槽(12391)滑动连接的滑动轴(12392)，所述滑动槽(12391)与高位悬挂组件(200)固定连接，所述第二钢丝绳(1213)与所述滑动轴(12392)可缠绕连接，并延伸至靠近第二起升机构(122)一侧，所述第四钢丝绳(1223)与所述滑动轴(12392)可缠绕连接，并延伸至靠近第一起升机构(121)一侧，且延伸至靠近第二起升机构(122)一侧的第二钢丝绳(1213)与第四钢丝绳(1223)，延伸至靠近第一起升机构(121)一侧的第四钢丝绳(1223)与第二钢丝绳(1213)均通过若干锁扣(12393)固定连接。
  10. 根据权利要求9所述的核电厂设备闸门，其特征在于，所述第一起升机构(121)还包括：固定在所述第一起吊支架(111)上的电机(1214)、减速器(1215)、运行制动器(1216)、紧急制动器(1217)和安全制动器(1218)，所述电机(1214)用于为所述第一卷筒(1211)提供驱动力，所述电机(1214)的输出轴连接所述减速器(1215)的输入轴，所述减速器(1215)的输出轴连 接所述第一卷筒(1211)的输入轴，所述运行制动器(1216)和紧急制动器(1217)分别对应设置在所述减速器(1215)的输入轴上，所述安全制动器(1218)设置在所述第一卷筒(1211)的输入轴上。
  11. 根据权利要求4所述的核电厂设备闸门，其特征在于，所述第一起升机构(121)还包括手轮(1219)，所述手轮(1219)设置在固定在所述第一起吊支架(111)上的所述电机(1214)的输入轴上，用于在电机(1214)失电时，通过手轮(1219)摇动起升机构(120)释放所述闸门封头(1)下降；所述第一起升机构(121)还包括设置在电机(1214)上方的散热单元(12110)，用于为所述电机(1214)散热。
  12. 根据权利要求7或8所述的核电厂设备闸门，其特征在于，所述第一平衡单元(1233)包括：固定在所述第一起吊支架(111)上的支座(12331)，与所述支座(12331)固定连接的旋转轴(12332)，与所述旋转轴(12332)可旋转连接的平衡梁(12333)，与所述平衡梁(12333)铰接的第一挂臂(12334)、第二挂臂(12335)以及第一阻尼器(12336)和第二阻尼器(12337)，所述第一挂臂(12334)和第二挂臂(12335)沿所述支座(12331)对称分布，且所述第一挂臂(12334)和第二挂臂(12335)远离所述平衡梁(12333)的一端分别设置有第一滑轮(12338)和第二滑轮(12339)，所述第一阻尼器(12336)和第二阻尼器(12337)沿所述支座(12331)对称分布，且位于所述第一挂臂(12334)和第二挂臂(12335)外侧，所述第一阻尼器(12336)和第二阻尼器(12337)一端与所述平衡梁(12333)固定连接，另一端与所述第一起吊支架(111)固定连接；所述旋转轴(12332)上设置有称重传感器(123310)，用于实时监测所述平衡梁(12333)的受力状态。
  13. 根据权利要求12所述的核电厂设备闸门，其特征在于，所述第一起吊滑轮(1231)包括：第三滑轮(12311)、第四滑轮(12312)、轴承(12313)、滑轮轴(12314)、耳板(12315)和耳轴(12316)，所述第三滑轮(12311)和第四滑轮(12312)沿耳板(12315)对称分布，且第三滑轮(12311)和第四滑轮(12312)均通过所述轴承(12313)与滑轮轴(12314)固定连接，所述耳轴(12316)横向贯通所述耳板(12315)，且所述耳轴(12316)与耳板(12315)滚动连接，所述耳轴(12316)与所述闸门封头(1)固定连接；所述第一钢丝绳(1212)与所述第三滑轮(12311)可缠绕连接，所述第二钢丝绳(1213)与所述第四滑轮(12312)可缠绕连接。
  14. 根据权利要求7或8所述的核电厂设备闸门，其特征在于，所述闸门封头(1)上部对称设置有第一支耳(13)和第二支耳(14)，所述第二支耳(14)与所述第二起吊滑轮(1232)固定连接，所述第一支耳(13)与所述耳轴(12316)固定连接，用于在第一起吊滑轮(1231)和第二起吊滑轮(1232)带动下向上移动。
  15. 根据权利要求1所述的核电厂设备闸门，其特征在于，所述高位悬挂组件(200)包括：设置在闸门封头(1)正上方的高位悬挂支架(210)以及与所述高位悬挂支架(210)固定连接的第一悬挂单元(220)和第二悬挂单元(230)，所述第一悬挂单元(220)和第二悬挂单元(230)用于当所述闸门封头(1)打开时，分别与设置在所述闸门封头(1)两侧设置的第一吊耳(11)和第二吊耳(12)可拆卸连接；所述第一吊耳(11)和第二吊耳(12)分别与所述闸门封头(1)焊接连接。
  16. 根据权利要求15所述的核电厂设备闸门，其特征在于，所述第一悬挂 单元(220)包括：钢支座(221)、悬挂钩(222)以及弹簧挡片(223)，所述钢支座(221)固定在所述高位悬挂支架(210)上，所述悬挂钩(222)与所述钢支座(221)铰接，所述弹簧挡片(223)与所述悬挂钩(222)铰接，当所述闸门封头(1)向上移动至指定位置时，所述第一吊耳(11)顶开所述弹簧挡片(223)与所述悬挂钩(222)可拆卸连接。
  17. 根据权利要求16所述的核电厂设备闸门，其特征在于，所述钢支座(221)包括第一支座(2211)以及与第一支座(2211)垂直的第二支座(2212)和第三支座(2213)，所述第二支座(2212)和第三支座(2213)平行，且所述第二支座(2212)和第三支座(2213)形成一开放空间，所述悬挂钩(222)一端延伸至所述开放空间，所述第一悬挂单元(220)还包括销轴(224)，所述销轴(224)贯穿所述第二支座(2212)和第三支座(2213)和悬挂钩(222)，实现所述悬挂钩(223)与所述钢支座(221)的铰接。
  18. 根据权利要求17所述的核电厂设备闸门，其特征在于，所述高位悬挂支架(210)包括若干根垂直于所述安全壳的主梁(211)，以及与所述主梁(211)垂直的第一横梁(212)、第二横梁(213)和第三横梁(214)，所述主梁(211)与所述核电厂安全壳厂房的墙壁固定连接，所述第一横梁(212)、第二横梁(213)与所述主梁(211)形成若干环形空间，所述钢支座(221)与若干所述环形空间固定连接，所述高位悬挂支架(210)还包括若干斜支撑梁(215)，用于增强所述高位悬挂支架(210)的稳定性，所述第一导向滑轮(1234)和第二导向滑轮(1238)分别固定在所述第三横梁(214)的两端。
  19. 根据权利要求2所述的核电厂设备闸门，其特征在于，所述导向组件(300)包括：
    第一导向单元(310)，所述第一导向单元(310)包括竖直设置的第一导轨(311)以及能够沿第一导轨(311)上下移动的第一导向轮(312)，所述第一导向轮(312)一端与闸门封头(1)固定连接，另一端与所述第一导轨(311)可滑动连接；
    第二导向单元(320)，所述第二导向单元(320)包括竖直设置的第二导轨(321)以及能够沿第二导轨(321)上下移动的第二导向轮(322)，所述第二导向轮(322)一端与闸门封头(1)固定连接，另一端与所述第二导轨(321)可滑动连接。
  20. 根据权利要求2所述的核电厂设备闸门，其特征在于，所述定位对中组件(500)包括定位单元(510)和对中单元(520)；
    所述定位单元(510)包括：与筒节法兰固定连接的第一支撑件(511)，设置在第一支撑件(511)内部的第一圆轨(512)，以及与闸门封头(1)固定连接的第一滚轮支座(515)，第一滚轮(513)通过第一滚轮轴(514)与所述第一滚轮支座(515)固定连接，用于实现闸门封头(1)的高度定位；
    所述对中单元(520)包括：与所述筒节法兰固定连接的第二支撑件(521)，设置在第二支撑件(521)内部的第二圆轨(522)，以及与闸门封头(1)固定连接的第二滚轮支座(527)，第二滚轮(523)和第三滚轮(524)分别通过第二滚轮轴(525)和第三滚轮轴(526)与所述第二滚轮支座(527)固定连接，用于实现闸门封头(1)的自动对中。
  21. 根据权利要求1所述的核电厂设备闸门，其特征在于，所述抗震限位组件(400)包括第一抗震支架(410)、第二抗震支架(420)、第一抗震销(430)、第二抗震销(440)、第一插销(450)和第二插销(460)，所述第一抗震支架(410) 和第二抗震支架(420)分别与核电厂安全壳焊接连接，所述第一抗震销(430)和第二抗震销(440)分别与设置在所述闸门封头(1)两侧设置的第三支耳(15)和第四支耳(16)固定连接，用于限制所述闸门封头(1)左右移动，所述第一插销(450)和第二插销(460)分别与第一抗震支架(410)、第二抗震支架(420)可活动地连接，用于限制所述闸门封头(1)向上移动。
  22. 根据权利要求19所述的核电厂设备闸门，其特征在于，所述核电厂设备闸门还包括：平移组件(600)，所述平移组件(600)包括第一平移单元(610)和第二平移单元(620)，所述第一平移单元(610)和第二平移单元(620)分别对应与所述第一导轨(311)和第二导轨(321)固定连接，所述第一平移单元(610)包括第一导向滑槽(611)、第一导向块(612)和第一推拉杆(613)，所述第一导向滑槽(611)与所述第一导轨(311)固定连接，所述第一推拉杆(613)与所述第一导向块(612)可推动连接，所述第一导向块(612)通过所述第一推拉杆(613)与所述第一导向滑槽(611)可滑动连接，所述闸门封头(1)复位后在所述第一导向块(612)的导向作用下平移。
  23. 根据权利要求1所述的核电厂设备闸门，其特征在于，所述核电厂设备闸门还包括供工作人员操作所需的位于不同高度的钢平台(700)，不同高度的钢平台(700)之间通过爬梯(800)连接。
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