CN111681790A - End face sealing suction gun device of high-temperature gas cooled reactor - Google Patents
End face sealing suction gun device of high-temperature gas cooled reactor Download PDFInfo
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- CN111681790A CN111681790A CN202010579373.4A CN202010579373A CN111681790A CN 111681790 A CN111681790 A CN 111681790A CN 202010579373 A CN202010579373 A CN 202010579373A CN 111681790 A CN111681790 A CN 111681790A
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- assembly
- suction gun
- temperature gas
- suction
- gas cooled
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/222—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for tubes
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- 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
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The disclosure belongs to the technical field of nuclear power maintenance, and particularly relates to a high-temperature gas cooled reactor end face sealing suction gun device. According to the embodiment of the helium leakage detection device, the position of at least one suction gun assembly is adjusted through the rotating assembly and the lifting assembly, so that the suction gun port structure of the suction gun assembly can be flexibly aligned to the end face of the throttling assembly, and helium leakage detection operation is achieved. The air leakage influence caused by the gap between the throttling assembly and the anti-loosening clamping ring is avoided by the direct butt joint mode of the suction gun port structure and the end face of the throttling assembly, so that the throttling assembly, the anti-loosening plate, the anti-loosening clamping ring and the fixing nut do not need to be disassembled when helium leakage is detected, the time consumed by personnel at the manhole of the evaporator is greatly reduced, and the irradiation dose of the personnel is reduced.
Description
Technical Field
The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a high-temperature gas cooled reactor end face sealing suction gun device.
Background
The high-temperature gas cooled reactor is an advanced unit which is independently developed in China and applies a new generation of nuclear power technology, the inspection technology and the inspection equipment of a heat transfer pipe of a steam generator are the direction which needs to be vigorously developed in the future, and the steam generator is completely different from a conventional pressurized water reactor, so that the operating environment, the structure, particularly the pipe plate structure of the steam generator are different, and corresponding detection technology and special detection equipment are not available at present. The heat transfer pipe structure form of the high-temperature gas cooled reactor steam generator is also different from a conventional pressurized water reactor and is a spiral coil pipe, the bending radius is small, the conventional heat transfer pipe eddy current detection mode cannot be used for detection, in the related technology, helium mass spectrometry is adopted for detection, a suction gun is usually connected with the heat transfer pipe, helium is pumped to a helium mass spectrometer leak detector, and the helium concentration of the instrument is analyzed, so that whether each heat transfer pipe leaks is detected.
Disclosure of Invention
In order to overcome the problems in the related art, the end face sealing suction gun device of the high-temperature gas cooled reactor is provided.
According to an aspect of the embodiments of the present disclosure, there is provided a high temperature gas cooled reactor end face sealing suction gun device, including: the device comprises a positioning assembly, a rotating assembly, a lifting assembly, at least one suction gun assembly and a support;
the positioning assembly is connected in a water supply chamber of the high-temperature gas cooled reactor, the positioning assembly is connected with the rotating assembly, the rotating assembly is connected with the lifting assembly, and the at least one suction gun assembly is connected with the lifting assembly through the bracket;
the positioning assembly can drive the rotating assembly, the lifting assembly and the at least one suction gun assembly to linearly move in the horizontal direction;
the rotating assembly can drive the lifting assembly to rotate together with the at least one suction gun assembly in the horizontal direction;
the lifting assembly can drive the at least one suction gun assembly to linearly move in the vertical direction;
every suction gun subassembly is hollow structure, and the top of every suction gun subassembly sets up suction gun mouth structure, and leak hunting locator is picked up to helium through the trachea connection in the bottom of every suction gun subassembly, and the suction gun mouth structure of every suction gun subassembly docks with a throttling assembly's terminal surface, helium leak hunting locator is under the circumstances of work, and the throttling assembly that follows this suction gun subassembly butt joint through every suction gun subassembly extracts gas.
In one possible implementation, the lifting assembly includes: the lifting mechanism comprises a screw rod, a screw rod nut and a lifting motor;
the support is provided with a plurality of first through holes and a plurality of second through holes, each suction gun assembly is connected into one first through hole, the screw rod penetrates through the second through holes, and the screw rod nut is connected to the screw rod and connected to the lower end of the support;
the lifting motor is connected with the screw rod, and the lifting motor can drive the screw rod to rotate under the working condition, so that the screw rod nut drives the support and the at least one suction gun assembly to move along the screw rod.
In one possible implementation manner, the high temperature gas cooled reactor end face sealing suction gun device further includes: a plurality of springs;
a baffle plate is arranged at the position, corresponding to the upper end of the first through hole, of each suction gun assembly;
each spring surrounds one suction gun assembly, and each spring is positioned between the baffle of the surrounding suction gun assembly and the upper surface of the bracket;
every suction gun subassembly can for the support motion, the motor that lifts passes through the lead screw drives screw-nut lifts under the condition of support upward movement, the support drives the suction gun subassembly upward movement that this spring corresponds through extrudeing every spring.
In one possible implementation manner, the high temperature gas cooled reactor end face sealing suction gun device further includes: the bearing comprises a first base, a bearing and a second base;
the lifting assembly is connected to the first base;
the rotating assembly is arranged on the second base, and the first base is connected to the second base through the bearing;
the rotating assembly comprises a rotating motor, the rotating motor is connected with the bearing, and the rotating motor can drive the first base and the lifting assembly to rotate through the bearing under the working condition.
In one possible implementation manner, the high temperature gas cooled reactor end face sealing suction gun device further includes: a plurality of linear bearings and bearing mounts;
the bearing base is fixedly connected to the first base;
the bearing base is provided with a plurality of third through holes, and each third through hole is internally connected with a linear bearing;
each gun assembly is disposed in a linear bearing.
In one possible implementation manner, the high temperature gas cooled reactor end face sealing suction gun device further includes: a camera;
the camera is arranged at the upper end of the bearing base and used for collecting images of the relative position of the upper end of the at least one suction gun assembly and the high-temperature gas cooled reactor tube plate.
In a possible implementation mode, the relative position between the camera and the suction port of each suction gun structure is matched with the relative position of each suction gun assembly of the high-temperature gas cooled reactor.
In one possible implementation, the suction nozzle structure comprises a suction nozzle tube, a suction nozzle, a sealing gasket and an end cover;
the suction gun mouth is of a tubular structure, the suction gun mouth can be in threaded connection with the suction gun pipe, and the outer side of the upper end of the suction gun mouth is provided with a step part extending towards the outer side;
the sealing gasket is of a circular ring structure, and is arranged at the upper end of the step part;
the end cover is of a cylindrical structure, a through hole is formed in the top end of the end cover, and the end cover can be covered and buckled on the upper end of the step part and is in interference fit with the upper end of the step part.
In one possible implementation manner, the high temperature gas cooled reactor end face sealing suction gun device further includes: a limit switch;
the limit switch is used for controlling the lifting motor to work or stop working, the movable end of the limit switch is connected with the screw rod nut, the fixed end of the limit switch is connected with the first base, and when the screw rod nut moves to a preset position, the movable end is in a turn-off position, so that the lifting motor is powered off.
In one possible implementation, a pneumatic fitting is provided at the bottom end of each gun assembly.
The invention has the beneficial effects that: according to the embodiment of the helium leakage detection device, the position of at least one suction gun assembly is adjusted through the rotating assembly and the lifting assembly, so that the suction gun port structure of the suction gun assembly can be flexibly aligned to the end face of the throttling assembly, and helium leakage detection operation is achieved. The air leakage influence caused by the gap between the throttling assembly and the anti-loosening clamping ring is avoided by the direct butt joint mode of the suction gun port structure and the end face of the throttling assembly, so that the throttling assembly, the anti-loosening plate, the anti-loosening clamping ring and the fixing nut do not need to be disassembled when helium leakage is detected, the time consumed by personnel at the manhole of the evaporator is greatly reduced, and the irradiation dose of the personnel is reduced.
Drawings
Fig. 1 is a schematic diagram illustrating a high temperature gas cooled reactor end face sealing suction lance apparatus according to an exemplary embodiment.
Fig. 2 is a schematic diagram of a tube plate of a high temperature gas cooled reactor in the related art.
Fig. 3 is a sectional view of a tube sheet of a high temperature gas cooled reactor in the related art.
Fig. 4 is a schematic diagram illustrating the connection of the lift assembly, the rotation assembly and the suction gun assembly in the high temperature gas cooled reactor end face sealing suction gun device according to an exemplary embodiment.
Fig. 5 is a partial cross-sectional view of a high temperature gas cooled reactor end face seal gun apparatus according to an exemplary embodiment.
Fig. 6 is a partial cross-sectional view of a high temperature gas cooled reactor end face seal gun apparatus according to an exemplary embodiment.
Fig. 7 is a partial cross-sectional view of a high temperature gas cooled reactor end face seal gun apparatus according to an exemplary embodiment.
Fig. 8 is an exploded view of a lance port structure of a high temperature gas cooled reactor end face seal lance apparatus according to an exemplary embodiment.
Fig. 9 is a schematic diagram illustrating a gun port structure of a high temperature gas cooled reactor end face sealing gun apparatus interfacing with an end face of a corresponding throttling assembly according to an exemplary embodiment.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Fig. 1 is a schematic diagram illustrating a high temperature gas cooled reactor end face sealing suction lance apparatus according to an exemplary embodiment. As shown in fig. 1, the high temperature gas cooled reactor end face sealing lance apparatus may include: a positioning assembly 13, a rotating assembly 14, a lifting assembly 12, at least one suction gun assembly 11, and a support 17;
generally, as shown in fig. 2 and 3, the steam generator feed water inlet throttling assembly mounting form is composed of a throttling assembly 20 and a locking assembly, and the locking assembly can comprise a locking plate 21, a locking snap ring 23 and a fixing nut 22 (the throttling assembly can adopt two mounting forms of mounting with and without the fixing nut). The loosening plate can be arranged on the lower surface of the tube plate 24, and due to the existence of the loosening prevention plate 21, a gap is formed between the throttling assembly 20 and the anti-loosening clamping ring 23 to avoid sealing, so that when helium is collected, external air easily enters the suction gun through the gap between the anti-loosening clamping ring 23 and the throttling assembly 20, the air tightness requirement of a helium leakage detection air pumping system of the device cannot be guaranteed, and the accuracy of a detection result is influenced. Aiming at the installation form of the throttling component, how to effectively collect the gas of the throttling component becomes a technical problem to be solved urgently.
Fig. 4 is a schematic diagram illustrating the connection of the lift assembly, the rotation assembly and the suction gun assembly in the high temperature gas cooled reactor end face sealing suction gun device according to an exemplary embodiment. As shown in fig. 1 and 4, the positioning assembly 13 is connected in the water supply chamber 10 of the high temperature gas cooled reactor, the positioning assembly 13 can be connected with the rotating assembly 14, the rotating assembly 14 can be connected with the lifting assembly 12, and the at least one suction gun assembly 11 can be connected with the lifting assembly 12 through the bracket 17;
the positioning assembly 13 can drive the rotating assembly 14 together with the lifting assembly 12 and at least one suction gun assembly 11 to move linearly in the horizontal direction; the rotating assembly 14 can drive the lifting assembly 12 and at least one suction gun assembly 11 to rotate in the horizontal direction; the lifting assembly 12 can drive at least one suction gun assembly 11 to move linearly in the vertical direction. Each suction gun assembly 11 can be of a hollow structure, a suction gun opening structure 111 can be arranged at the top end of each suction gun assembly 11, and the bottom end of each suction gun assembly 11 is connected with a helium leak detection positioner (not shown in the figure) through a gas pipe. For example, the position of each suction gun assembly 11 may be adjusted by the positioning assembly 13 and/or the rotating assembly 14 until the suction gun port structure 111 of each suction gun assembly 11 aligns with the end face of one throttling assembly 20 (in the case that the high temperature gas cooled reactor end face sealing suction gun apparatus includes a plurality of suction gun assemblies, the axial center relative position of each suction gun assembly may be consistent with the axial center relative position of the throttling assembly, and when the suction gun port structure of one suction gun assembly aligns with the end face of one throttling assembly, the suction gun port structures of other suction gun assemblies may also align with the end face of one throttling assembly), and then, the lifting assembly 12 may be controlled to lift each suction gun assembly 11 so that the suction gun port structure 111 of each suction gun assembly 11 is abutted with the end face of the aligned throttling assembly 20.
The helium leak detector positioner may have a gas pump and the helium leak detector positioner may be operated to collect gas from the throttling assembly to which the pipette assembly 11 is docked via each pipette assembly 11.
In a possible implementation mode, the bottom end of each suction gun assembly can be connected with a pneumatic connector, and each suction gun assembly can be quickly installed with the air pipe through the pneumatic connector. The disclosed embodiments do not limit the type of pneumatic fitting.
According to the embodiment of the helium leakage detection device, the position of at least one suction gun assembly is adjusted through the rotating assembly and the lifting assembly, so that the suction gun port structure of the suction gun assembly can be flexibly aligned to the end face of the throttling assembly, and helium leakage detection operation is achieved. The air leakage influence caused by the gap between the throttling assembly and the anti-loosening clamping ring is avoided by the direct butt joint mode of the suction gun port structure and the end face of the throttling assembly, so that the throttling assembly, the anti-loosening plate, the anti-loosening clamping ring and the fixing nut do not need to be disassembled when helium leakage is detected, the time consumed by personnel at the manhole of the evaporator is greatly reduced, and the irradiation dose of the personnel is reduced.
Fig. 5 is a partial cross-sectional view of a high temperature gas cooled reactor end face seal gun apparatus according to an exemplary embodiment. Fig. 6 is a partial cross-sectional view of a high temperature gas cooled reactor end face seal gun apparatus according to an exemplary embodiment. As shown in fig. 5 and 6, the lifting assembly may include: a screw rod 121, a screw rod nut 122 and a lifting motor 123;
the bracket 17 can be provided with a plurality of first through holes and a second through hole, each suction gun assembly 11 can be connected in one first through hole, the screw rod 121 can pass through the second through hole, and the screw rod nut 122 is connected on the screw rod 121 and is connected at the lower end of the bracket 17; as shown in fig. 6, an output end of the lifting motor 123 may be connected to a bottom end of the lead screw 121 through the first transmission belt 120 (it should be noted that the lifting motor and the lead screw may also be driven by a gear, and the like, and the embodiment of the present disclosure does not limit a driving manner between the lifting motor and the lead screw), and when the lifting motor 123 is in operation, the lead screw 121 may be driven to rotate, so that the lead screw nut 122 drives the bracket 17 and the at least one suction gun assembly 11 to move along the lead screw 121.
In one possible implementation manner, as shown in fig. 5, the high temperature gas cooled reactor end face sealing suction gun device may further include: a plurality of springs 18; a baffle 112 can be arranged on each suction gun assembly 11 at a position above the bracket 17; a spring 18 may be wound around each gun assembly 11 at a location between the stop 112 and the bracket 17. Each suction gun assembly 11 can pass through the corresponding first through hole to move relative to the support 17, and under the condition that the lifting motor 123 drives the screw nut 122 to lift the support 17 to move upwards through the screw rod 121, the support 17 moves relative to the suction gun assembly 11, and can extrude the spring 18 wound by the suction gun assembly 11, so that the spring 18 generates upward thrust on the suction gun assembly 11 through the baffle 112, and the suction gun assembly 11 is driven to move upwards. Like this, can inhale the ascending thrust of suction gun subassembly through the spring buffering, make to the ascending action of lifting of suction gun subassembly comparatively soft, effectively reduce the collision that produces suction gun subassembly and throttle subassembly terminal surface, in addition, after suction gun mouth structure and throttle subassembly terminal surface contact, can control and lift the motor and continue work, make the spring continue the compression, provide ascending thrust to the suction gun subassembly, until suction gun mouth structure and the throttle subassembly in close contact with of suction gun subassembly, improve the leakproofness of suction gun mouth structure and throttle subassembly from this.
Fig. 7 is a partial cross-sectional view of a high temperature gas cooled reactor end face seal gun apparatus according to an exemplary embodiment. As shown in fig. 7, the high temperature gas cooled reactor end face sealing lance apparatus may further include: a first base 71, a bearing 73, and a second base 72; the lift assembly 12 may be coupled to the first base 71; the rotating assembly 14 may be disposed on a second base 72 to which the first base 71 may be attached via bearings 73; the rotating assembly 14 may include a rotating motor 141, an input end of the rotating motor 141 may be connected to the bearing through a second transmission belt 142, and the rotating motor 14 may drive the first base 71 and the lifting assembly 12 to rotate through the bearing under the operating condition.
In one possible implementation manner, as shown in fig. 5, the high temperature gas cooled reactor end face sealing suction gun device may further include: a plurality of linear bearings 191 and a bearing base 192;
the bearing base 192 may be fixedly coupled to a first base (not shown in fig. 5); a plurality of third through holes are formed in the bearing base 192, and each third through hole can be connected with a linear bearing 191; each suction gun assembly 11 may be disposed in one of the linear bearings 191. Therefore, the movement track of the suction gun assembly can be limited through the bearing base, the suction gun assembly is prevented from being inclined, and friction generated in the relative movement process of the suction gun assembly and the bearing base can be effectively reduced through the linear bearing.
In one possible implementation manner, as shown in fig. 4, the high temperature gas cooled reactor end face sealing suction gun device may further include: a camera 15; the camera 15 is arranged at the upper end of the bearing base and used for collecting images of the relative position of the upper end of at least one suction gun assembly and the high-temperature gas cooled reactor tube plate.
In one possible implementation, the relative position between the camera and the suction port of each suction gun structure can be matched with the relative position of each suction gun assembly of the high temperature gas cooled reactor. For example, the axial distance between the camera and the suction port of each suction gun structure can be consistent with the axial distance of each suction gun assembly of the high-temperature gas cooled reactor, the positioning camera can be installed at the center of the suction gun assembly, the axis of the camera can coincide with the rotation center of the suction gun assembly, when the suction gun assembly moves to a hole site of a required throttling assembly, the positioning camera can automatically capture a relative position image of the positioning hole above the positioning hole and transmit the image to an upper computer in real time, the upper computer obtains the relative position deviation between the positioning camera center (namely the rotation center of the suction gun assembly) and the positioning hole by analyzing and calculating the image and finally converts the relative position deviation into a motion command of the rotation assembly and/or a lifting assembly, the position deviation compensation of the suction gun assembly is realized, and the accurate positioning of the suction gun assembly is completed.
Fig. 8 is an exploded view of a lance port structure of a high temperature gas cooled reactor end face seal lance apparatus according to an exemplary embodiment. As shown in fig. 8, the suction nozzle structure may include a suction nozzle tube 80, a suction nozzle 81, a gasket 82 sheet, and an end cap 83; the suction gun mouth 81 is of a tubular structure, threads can be arranged inside the suction gun mouth 81, threads can be arranged on the outer side of the suction gun pipe 80, and the suction gun mouth 81 can be in threaded connection with the suction gun pipe 80, so that the suction gun mouth 81 is convenient to replace. The outer side of the upper end of the gun suction port 81 can be provided with a step part extending towards the outer side; the gasket 82 is in a circular ring structure, and the gasket 82 can be arranged at the upper end of the step part; the end cover 83 is of a cylindrical structure, a through hole is formed in the top end of the end cover 83, the end cover 83 can cover and buckle the upper end of the step part, the gasket is limited between the end cover 83 and the step part in interference fit with the upper end of the step part, and the gasket has the functions of buffering and sealing.
Fig. 9 is a schematic diagram illustrating a gun port structure of a high temperature gas cooled reactor end face sealing gun apparatus interfacing with an end face of a corresponding throttling assembly according to an exemplary embodiment. As shown in fig. 9, the inner diameter of the air suction port of the suction gun port structure 111 may be set smaller than the inner diameter of the water inlet of the throttling component 20, so that when the butt positioning of the suction gun port structure and the throttling component has a precision deviation, the air suction port of the suction gun port structure may be opposite to the water inlet of the throttling component, and the helium leak detection inspection can be performed normally.
In one possible implementation manner, as shown in fig. 4, the high temperature gas cooled reactor end face sealing suction gun device may further include: a limit switch 16; the limit switch can 16 be connected with the lifting motor electricity, limit switch 16 can be used for controlling the work or stop work of the lifting motor, the expansion end (not shown in the figure) of limit switch 16 can be connected with the screw-nut, the stiff end (not shown in the figure) of limit switch can be fixedly connected with the first base, thus, when the screw-nut moves, the expansion end of limit switch can also move along with the screw-nut, can set up when the screw-nut moves to preset position (for example, the ascending maximum displacement of suction gun subassembly), the expansion end can be in the turn-off position, make the lifting motor cut off the power supply, and thus, the suction gun subassembly can be effectively prevented from excessively moving upwards.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. The end face sealing suction gun device for the high-temperature gas cooled reactor is characterized by comprising the following components: the device comprises a positioning assembly, a rotating assembly, a lifting assembly, at least one suction gun assembly and a support;
the positioning assembly is connected in a water supply chamber of the high-temperature gas cooled reactor, the positioning assembly is connected with the rotating assembly, the rotating assembly is connected with the lifting assembly, and the at least one suction gun assembly is connected with the lifting assembly through the bracket;
the positioning assembly can drive the rotating assembly, the lifting assembly and the at least one suction gun assembly to linearly move in the horizontal direction;
the rotating assembly can drive the lifting assembly to rotate together with the at least one suction gun assembly in the horizontal direction;
the lifting assembly can drive the at least one suction gun assembly to linearly move in the vertical direction;
every suction gun subassembly is hollow structure, and the top of every suction gun subassembly sets up suction gun mouth structure, and the bottom of every suction gun subassembly is passed through the trachea and is connected with helium leak detection locator, and the suction gun mouth structure of every suction gun subassembly docks with a throttling assembly's terminal surface, helium leak detection locator is under the circumstances of work, and the throttling assembly that follows this suction gun subassembly butt joint through every suction gun subassembly extracts gas.
2. The high temperature gas cooled reactor end face seal lance apparatus of claim 1, wherein the lifting assembly comprises: the lifting mechanism comprises a screw rod, a screw rod nut and a lifting motor;
the support is provided with a plurality of first through holes and a plurality of second through holes, each suction gun assembly is connected into one first through hole, the screw rod penetrates through the second through holes, and the screw rod nut is connected to the screw rod and connected to the lower end of the support;
the lifting motor is connected with the screw rod, and the lifting motor can drive the screw rod to rotate under the working condition, so that the screw rod nut drives the support and the at least one suction gun assembly to move along the screw rod.
3. The high temperature gas cooled reactor end face sealing lance device according to claim 2, further comprising: a plurality of springs;
a baffle plate is arranged at the position, corresponding to the upper end of the first through hole, of each suction gun assembly;
each spring surrounds one suction gun assembly, and each spring is positioned between the baffle of the surrounding suction gun assembly and the upper surface of the bracket;
every suction gun subassembly can for the support motion, the motor that lifts passes through the lead screw drives screw-nut lifts under the condition of support upward movement, the support drives the suction gun subassembly upward movement that this spring corresponds through extrudeing every spring.
4. The high temperature gas cooled reactor end face sealing lance device according to claim 2, further comprising: the bearing comprises a first base, a bearing and a second base;
the lifting assembly is connected to the first base;
the rotating assembly is arranged on the second base, and the first base is connected to the second base through the bearing;
the rotating assembly comprises a rotating motor, the rotating motor is connected with the bearing, and the rotating motor can drive the first base and the lifting assembly to rotate through the bearing under the working condition.
5. The high temperature gas cooled reactor end face sealing lance apparatus according to claim 4, further comprising: a plurality of linear bearings and bearing mounts;
the bearing base is fixedly connected to the first base;
the bearing base is provided with a plurality of third through holes, and each third through hole is internally connected with a linear bearing;
each gun assembly is disposed in a linear bearing.
6. The high temperature gas cooled reactor end face sealing lance apparatus according to claim 5, further comprising: a camera;
the camera is arranged at the upper end of the bearing base and used for collecting images of the relative position of the upper end of the at least one suction gun assembly and the high-temperature gas cooled reactor tube plate.
7. The high temperature gas cooled reactor end face sealing suction gun device according to claim 6, wherein the relative position between the camera and the suction port of each suction gun structure is matched with the relative position of each suction gun assembly of the high temperature gas cooled reactor.
8. The end face sealing gun device for the high temperature gas cooled reactor according to claim 1, wherein the gun suction port structure comprises a gun suction pipe, a gun suction port, a sealing gasket and an end cover;
the suction gun mouth is of a tubular structure, the suction gun mouth can be in threaded connection with the suction gun pipe, and the outer side of the upper end of the suction gun mouth is provided with a step part extending towards the outer side;
the sealing gasket is of a circular ring structure, and is arranged at the upper end of the step part;
the end cover is of a cylindrical structure, a through hole is formed in the top end of the end cover, and the end cover can be covered and buckled on the upper end of the step part and is in interference fit with the upper end of the step part.
9. The high temperature gas cooled reactor end face sealing lance apparatus according to claim 4, further comprising: a limit switch;
the limit switch is used for controlling the lifting motor to work or stop working, the movable end of the limit switch is connected with the screw rod nut, the fixed end of the limit switch is connected with the first base, and when the screw rod nut moves to a preset position, the movable end is in a turn-off position, so that the lifting motor is powered off.
10. The high temperature gas cooled reactor end face seal lance apparatus of claim 1, wherein a pneumatic connector is provided at a bottom end of each lance assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579373.4A CN111681790A (en) | 2020-06-23 | 2020-06-23 | End face sealing suction gun device of high-temperature gas cooled reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579373.4A CN111681790A (en) | 2020-06-23 | 2020-06-23 | End face sealing suction gun device of high-temperature gas cooled reactor |
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| CN111681790A true CN111681790A (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010579373.4A Pending CN111681790A (en) | 2020-06-23 | 2020-06-23 | End face sealing suction gun device of high-temperature gas cooled reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324442A (en) * | 2021-06-30 | 2021-08-31 | 华能山东石岛湾核电有限公司 | Integrated mechanical detonator and explosion valve cartridge drive |
-
2020
- 2020-06-23 CN CN202010579373.4A patent/CN111681790A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324442A (en) * | 2021-06-30 | 2021-08-31 | 华能山东石岛湾核电有限公司 | Integrated mechanical detonator and explosion valve cartridge drive |
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