CN115359936A - Ball bed type high-temperature stacking and taking device and ball bed type high-temperature stacking and taking method - Google Patents
Ball bed type high-temperature stacking and taking device and ball bed type high-temperature stacking and taking method Download PDFInfo
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- CN115359936A CN115359936A CN202211121012.0A CN202211121012A CN115359936A CN 115359936 A CN115359936 A CN 115359936A CN 202211121012 A CN202211121012 A CN 202211121012A CN 115359936 A CN115359936 A CN 115359936A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/12—Arrangements for exerting direct hydraulic or pneumatic force on fuel element or on control element
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/20—Arrangements for introducing objects into the pressure vessel; Arrangements for handling objects within the pressure vessel; Arrangements for removing objects from the pressure vessel
- G21C19/202—Arrangements for handling ball-form, i.e. pebble fuel
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/26—Arrangements for removing jammed or damaged fuel elements or control elements; Arrangements for moving broken parts thereof
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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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Abstract
The invention provides a ball bed type high-temperature stacking and taking device and a ball bed type high-temperature stacking and taking method. The ball bed type high temperature stacking and reclaiming device of the invention comprises: the material taking component comprises a negative pressure fan and a material taking pipe, the material taking pipe is provided with a connecting port and a material taking port, a suction port of the negative pressure fan is connected with the connecting port, the material taking pipe can move relative to the negative pressure fan, and the material taking port is suitable for being communicated with a feed port of the ball bed type high temperature reactor so as to take out fuel balls blocked in the ball bed type high temperature reactor; the crushed aggregates subassembly is got the material subassembly and is included drive arrangement and garrulous club, and garrulous club extends along first direction, and drive arrangement can drive garrulous club and move so that garrulous club has initial position and garrulous ball position along first direction, and at garrulous ball position, garrulous club stretches into the feed inlet of pebble bed formula high temperature heap so that smash the stifled fuel ball of card in the pebble bed formula high temperature heap. Therefore, the ball bed type high-temperature reactor reclaiming device has the advantages of being convenient to take out the blocked fuel balls and improving the safety of maintainers.
Description
Technical Field
The invention relates to the technical field of reactor engineering, in particular to a pebble-bed high-temperature reactor reclaiming device and a pebble-bed high-temperature reactor reclaiming method.
Background
The pebble-bed high-temperature gas cooled reactor is an advanced nuclear reactor which has good inherent safety, can be used for high-efficiency power generation and high-temperature heat supply, and is one of the first-choice reactors in the fourth-generation nuclear energy system in the international nuclear energy field. By utilizing the favorable geometrical shape of the spherical fuel element, the pebble-bed high-temperature gas cooled reactor can realize the function of changing the materials of the reactor without stopping the reactor. The fuel loading and unloading system is a key system for realizing long-term safe and stable operation of the high-temperature gas cooled reactor, and mainly utilizes two modes of gravity and pneumatic conveying and loading and unloading fuel elements. In order to improve the conveying efficiency of fuel elements, the inner diameter of a ball flow conveying channel of a fuel loading and unloading system is very close to the outer diameter of a fuel ball, and under the severe operating environment of the near-isodiametric ball flow conveying channel and the high-frequency operating condition of ball flow conveying equipment, ball clamping faults are easy to occur in the fuel loading and unloading system equipment or on a ball flow conveying pipeline with a small inclination angle due to equipment action deviation or debris accumulation and the like. In the related art, once the blockage fault occurs to the ball flow transmission equipment of the fuel loading and unloading system, the blocked fuel ball can be taken out only through disassembly equipment or a pipe fitting of a material taking port, the maintenance efficiency is low, and a maintainer needs to bear great radioactivity risk in a strong radiation environment.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, the embodiment of the invention provides a ball bed type high-temperature stacking and reclaiming device and a ball bed type high-temperature stacking and reclaiming method.
The ball bed type high-temperature material piling and taking device provided by the embodiment of the invention comprises:
the material taking assembly comprises a negative pressure fan and a material taking pipe, the material taking pipe is provided with a connecting port and a material taking port, an air suction port of the negative pressure fan is connected with the connecting port, the material taking pipe can move relative to the negative pressure fan, and the material taking port is suitable for being communicated with a feed port of the ball bed type high temperature reactor so as to take out fuel balls blocked in the ball bed type high temperature reactor;
the material taking assembly comprises a driving device and a ball smashing rod, the ball smashing rod extends along a first direction, the driving device can drive the ball smashing rod to move along the first direction so that the ball smashing rod can have an initial position and a ball smashing position, and in the ball smashing position, the ball smashing rod extends into a feeding hole of the high-temperature pebble bed reactor so as to smash fuel balls blocked in the high-temperature pebble bed reactor.
Therefore, the ball bed type high-temperature reactor reclaiming device provided by the embodiment of the invention has the advantages of facilitating the taking out of the blocked fuel ball and improving the safety of maintainers.
The ball bed type high-temperature reactor taking device comprises a material taking frame and a moving device, wherein the moving device, the material taking pipe and the driving device are all arranged on the material taking frame, and the moving device can drive the material taking pipe to move so that the material taking port is communicated with a feeding port of a ball bed type high-temperature reactor.
In some embodiments, the material taking pipe comprises a first pipe and a second pipe, the first pipe extends along the up-down direction, the first pipe has a first pipe orifice and a second pipe orifice, the first pipe orifice is located below the second pipe orifice, the first pipe orifice forms the material taking port, the second pipe has a third pipe orifice and a fourth pipe orifice, the third pipe orifice is communicated with the first pipe, and the fourth pipe orifice forms the connecting port;
the moving device can drive the material taking pipe to move downwards so that the material taking port is communicated with a feeding port of the ball bed type high temperature reactor, the first direction is the vertical direction, the extending direction of the ball smashing rod is the vertical direction, the ball smashing rod is located above the first pipe, the driving device can drive the ball smashing rod to move along the vertical direction so that the ball smashing rod is provided with the initial position and the ball smashing position, the ball smashing position is located below the initial position, and at the ball smashing position, the ball smashing rod penetrates through the first pipe and extends into the feeding port of the ball bed type high temperature reactor so as to smash fuel balls blocked in the ball bed type high temperature reactor.
In some embodiments, the driving device comprises a first driving motor and a worm gear driver, the first driving motor and the worm gear driver are both arranged on the material taking frame, an output shaft of the driving motor is connected with the worm gear driver, and the worm gear driver is driven by the ball smashing rod screw rod so as to drive the ball smashing rod to move in the up-down direction;
or the driving device comprises a first telescopic cylinder, a cylinder body of the first telescopic cylinder is arranged on the material taking frame, a telescopic part of the first telescopic cylinder can move along the up-down direction, and the telescopic part of the first telescopic cylinder is connected with the ball smashing rod so as to drive the ball smashing rod to move along the up-down direction.
In some embodiments, the moving device includes a second driving motor, a screw rod, and a moving frame, the moving frame is movably disposed on the material taking frame in an up-down direction, the material taking pipe is disposed on the moving frame, a length direction of the screw rod is an up-down direction, the screw rod is rotatably disposed on the material taking frame, the screw rod is in transmission with the moving frame screw rod, the second driving motor is disposed on the material taking frame, and the second driving motor is connected with the screw rod so as to drive the screw rod to rotate on the material taking frame.
In some embodiments, the material taking frame is provided with a plurality of guide pillars, the extending direction of the guide pillars is an up-down direction, and the movable frame is movably arranged on the guide pillars along the up-down direction.
In some embodiments, an isolation valve for controlling the opening and closing of the second nozzle of the first pipe is arranged on the second nozzle of the first pipe.
In some embodiments, the material taking assembly further comprises a protective cover, the protective cover is arranged on the material taking frame, the opening of the protective cover faces to the lower side, the protective cover has a preset size in the up-down direction, and at least part of the cue pieces are located in the protective cover.
The invention also provides a pebble bed type high-temperature stacking and reclaiming method, which comprises the pebble bed type high-temperature stacking and reclaiming device, and the pebble bed type high-temperature stacking and reclaiming method comprises the following steps:
communicating a material taking port of a material taking pipe with a material inlet of the ball bed type high temperature reactor, and starting a negative pressure fan so as to suck out the fuel balls blocked in the ball bed type high temperature reactor;
and/or, the ball crushing rod extends into a feed inlet of the ball bed type high-temperature reactor so as to crush the fuel balls blocked in the ball bed type high-temperature reactor, a material taking port of a material taking pipe is communicated with the feed inlet of the ball bed type high-temperature reactor, and a negative pressure fan is started so as to suck out the fuel balls blocked in the ball bed type high-temperature reactor.
In some embodiments, the pebble bed high temperature stacker reclaimer device is the pebble bed high temperature stacker reclaimer device described above;
the ball bed type high-temperature stacking and reclaiming method further comprises the following steps: and arranging the ball bed type high-temperature reactor reclaiming device above the feed inlet of the ball bed type high-temperature reactor, wherein the first pipe of the ball bed type high-temperature reactor reclaiming device and the feed inlet of the ball bed type high-temperature reactor are oppositely arranged in the vertical direction.
Drawings
Fig. 1 is a perspective view of a pebble bed high temperature heap reclaimer assembly in accordance with an embodiment of the present invention.
Fig. 2 is a front view of a pebble bed high temperature heap reclaimer assembly in accordance with an embodiment of the present invention.
Fig. 3 is a perspective view of a take-out assembly and a spitwad assembly according to an embodiment of the present invention.
Fig. 4 is an elevation view of a take-out assembly and spitwad assembly according to an embodiment of the invention.
Reference numerals are as follows:
the ball bed type high-temperature stacking and taking device 100 comprises a taking pipe 1, a connecting port 2, a taking port 3, a ball crushing rod 4, a taking frame 5, a first pipe 6, a second pipe 7, a first driving motor 8, a worm gear driver 9, a second driving motor 10, a screw rod 11, a moving frame 12, a guide pillar 13, an isolation valve 14 and a protective cover 15.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
A pebble bed high temperature heap reclaimer assembly 100 according to an embodiment of the present invention will now be described with reference to the accompanying drawings. As shown in fig. 1-4, a pebble bed high temperature heap reclaimer assembly 100 in accordance with an embodiment of the present invention includes a reclaimer assembly and a scrap assembly.
Get the material subassembly and include negative pressure fan and get material pipe 1, get material pipe 1 and have connector 2 and get material mouth 3, negative pressure fan's suction opening links to each other with connector 2. The material taking pipe 1 can move relative to the negative pressure fan, and the material taking port 3 is suitable for being communicated with a feed port of the ball bed type high temperature reactor so as to take out fuel balls blocked in the ball bed type high temperature reactor.
The material taking assembly comprises a driving device and a ball crushing rod 4, the ball crushing rod 4 extends along a first direction, and the driving device can drive the ball crushing rod 4 to move along the first direction so that the ball crushing rod 4 has an initial position and a ball crushing position. In the ball crushing position, the ball crushing rod 4 extends into the feed inlet of the pebble bed type high-temperature reactor so as to crush the fuel balls blocked in the pebble bed type high-temperature reactor.
In the related art, once the blockage fault occurs to the ball flow transmission equipment of the fuel loading and unloading system, the blocked fuel ball can be taken out only through disassembly equipment or a pipe fitting of a material taking port, the maintenance efficiency is low, and a maintainer needs to bear great radioactivity risk in a strong radiation environment.
The pebble bed high temperature reactor reclaimer device 100 according to an embodiment of the present invention is provided with a reclaiming assembly and a scrap assembly. When making to have the stifled fuel ball of card in ball bed formula high temperature heap (fuel handling system ball stream transmission equipment), can communicate the feed inlet of getting material pipe 1's material intaking mouth 3 and ball bed formula high temperature heap (fuel handling system ball stream transmission equipment), then open negative-pressure air fan to thereby utilize negative-pressure air fan and material pipe 1 cooperation to block up fuel ball suction (take out) in the ball bed formula high temperature heap. If the negative pressure fan can not suck out the fuel balls blocked in the ball bed type high-temperature reactor, the ball crushing rod 4 can be moved to the ball crushing position firstly, so that the ball crushing rod 4 extends into a feed port of the ball bed type high-temperature reactor to crush the fuel balls blocked in the ball bed type high-temperature reactor, then a material taking port 3 of a material taking pipe 1 is communicated with the feed port of the ball bed type high-temperature reactor, and the negative pressure fan is started, so that the negative pressure fan is matched with the material taking pipe 1 to suck out the crushed fuel balls in the ball bed type high-temperature reactor. Intersecting with the related art, the blocked fuel ball is taken out through disassembly equipment or a pipe fitting of a material taking port, the ball bed type high-temperature reactor taking device 100 provided by the embodiment of the invention is more convenient and faster to take out the blocked fuel ball through arranging a material taking component and a crushed material component, and the safety of maintenance personnel is improved.
Therefore, the pebble bed type high-temperature reactor reclaiming device 100 provided by the embodiment of the invention has the advantages of facilitating the taking out of the blocked fuel pebbles and improving the safety of maintainers.
As shown in fig. 1 to 4, a pebble bed high temperature pile reclaiming apparatus 100 according to an embodiment of the invention includes a reclaiming assembly, a crushing assembly, a material taking frame 5 and a moving device.
The material taking frame 5 comprises a plurality of connecting plates with the thickness directions in the vertical direction and connecting rods extending in the vertical direction, the connecting plates are connected with the connecting rods, a baffle (not shown in the figure) is arranged on the outer side of the material taking frame 5, and an installation cavity is defined by the connecting plates, the connecting rods and the baffle. The up-down direction is shown by the arrows in fig. 2 and 4.
Get the material subassembly and include negative pressure fan and get material pipe 1, get material pipe 1 and have connector 2 and get material mouth 3, negative pressure fan's suction opening links to each other with connector 2. The material taking pipe 1 can move relative to the negative pressure fan, and the material taking port 3 is suitable for being communicated with a feeding port of the ball bed type high temperature reactor so as to take out fuel balls blocked in the ball bed type high temperature reactor.
Specifically, the moving device and the material taking pipe 1 are arranged on the material taking frame 5, and the moving device can drive the material taking pipe 1 to move so that the material taking port 3 is communicated with a feeding port of the ball bed type high-temperature reactor, and therefore blocked fuel balls can be sucked out.
In some embodiments, the take off pipe 1 includes a first pipe 6 and a second pipe 7. The first pipe 6 extends along the up-down direction, the first pipe 6 is provided with a first pipe orifice and a second pipe orifice, the first pipe orifice is positioned below the second pipe orifice, namely the first pipe orifice is a lower pipe orifice of the first pipe 6, and the second pipe orifice is an upper pipe orifice of the first pipe 6. The first mouth of pipe constitutes gets material mouth 3, and the periphery side of getting material mouth 3 is equipped with annular step groove, from this, can be convenient for get material mouth 3 insert in the feed inlet of bed formula high temperature heap and make and get difficult gas leakage between material mouth 3 and the feed inlet of bed formula high temperature heap to be convenient for get the stifled fuel ball of material pipe 1 suction card.
The second pipe 7 has a third pipe orifice and a fourth pipe orifice, the third pipe orifice is communicated with the first pipe 6, and the fourth pipe orifice forms the connection port 2. Specifically, the third pipe orifice is located between the first pipe orifice and the second pipe orifice in the up-down direction, and the third pipe orifice is communicated with the first pipe 6, so that the suction opening of the negative pressure fan is communicated with the first pipe 6 through the second pipe 7, and the fuel balls can sequentially pass through the first pipe 6 and the second pipe 7 and then are conveyed to an external shielding tank for storage.
The moving device can drive the material taking pipe 1 to move downwards so that the material taking port 3 is communicated with a feeding port of the pebble-bed high-temperature reactor. Specifically, the ball bed type high-temperature reactor feeds materials by using gravity, a feed inlet of the ball bed type high-temperature reactor faces to the upper side, and the material taking pipe 1 is arranged above the feed inlet of the ball bed type high-temperature reactor. Therefore, when the moving device drives the material taking pipe 1 to move downwards and reach the preset position, the material taking port 3 can be communicated with the feeding port of the pebble-bed high-temperature reactor.
In some embodiments, the moving means includes a second driving motor 10, a lead screw 11, and a moving frame 12. The movable frame 12 is movably arranged on the material taking frame 5 along the vertical direction, the material taking pipe 1 is arranged on the movable frame 12, the length direction of the screw rod 11 is the vertical direction, the screw rod 11 is rotatably arranged on the material taking frame 5, and the screw rod 11 and the movable frame 12 are in screw rod transmission. The second driving motor 10 is arranged on the material taking frame 5, and the second driving motor 10 is connected with the screw rod 11 so as to drive the screw rod 11 to rotate on the material taking frame 5.
Specifically, remove frame 12 fretwork design so that the reduction of mass, remove the installation intracavity that frame 12 established in material taking frame 5, remove frame 12 and can slide on material taking frame 5 along upper and lower direction. The first pipe 6 is arranged on the movable frame 12, the upper end and the lower end of the screw rod 11 are rotatably connected with the material taking frame, the screw rod 11 is located in the installation cavity, and the movable frame 12 is sleeved on the outer peripheral side of the screw rod 11 and is in screw rod transmission with the screw rod 11. The second driving motor 10 is arranged at the top of the material taking frame 5, an output shaft of the second driving motor 10 and a screw rod 11 (which extend along the vertical direction) are coaxially arranged, the output shaft of the second driving motor 10 is connected with the screw rod 11 through a speed reducer so as to drive the screw rod 11 to rotate on the material taking frame 5, and therefore the movable frame 12 can move along the vertical direction, and further the material taking pipe 1 can be driven to move along the vertical direction, so that the material taking pipe 1 moves downwards and the material taking port 3 is communicated with a feeding port of a pebble-bed high-temperature reactor.
In some embodiments, the material taking frame 5 is provided with a plurality of guide pillars 13, the extending direction of the guide pillars 13 is an up-down direction, and the moving frame 12 is movably provided on the plurality of guide pillars 13 along the up-down direction. Specifically, the screw 11 and the guide posts 13 are arranged at intervals in the horizontal direction, the plurality of guide posts 13 are arranged in the mounting cavity, and the moving frame 12 is sleeved on the outer periphery of the guide posts 13 and is in sliding connection with the guide posts 13, so that the moving frame 12 can move more stably in the up-down direction. For example, the guide posts 13 are two, and the screw 11 and the two guide posts 13 are spaced in the left-right direction as indicated by the arrows in fig. 2 and 4.
In some embodiments, a second telescopic cylinder is arranged on the material taking frame 5, a cylinder body of the second telescopic cylinder is arranged on the material taking frame 5, a telescopic part of the second telescopic cylinder can move in the up-down direction, and the telescopic part of the second telescopic cylinder is connected with the material taking pipe 1 (the first pipe 6) so as to drive the material taking pipe 1 to move in the up-down direction.
As shown in fig. 1 to 4, the material taking assembly comprises a driving device and a ball crushing rod 4, the ball crushing rod 4 extends along a first direction, and the driving device can drive the ball crushing rod 4 to move along the first direction so that the ball crushing rod 4 has an initial position and a ball crushing position. At the ball crushing position, the ball crushing rod 4 extends into the feed inlet of the ball bed type high temperature reactor so as to crush the fuel balls blocked in the ball bed type high temperature reactor. Specifically, the driving device is arranged on the material taking frame 5, the first direction is the up-down direction, and the extending direction of the ball crushing rod 4 is the up-down direction. Garrulous club 4 is located (directly) top of first pipe 6, and drive arrangement can drive garrulous club 4 and move so that garrulous club 4 has initial position and garrulous ball position along upper and lower direction, and garrulous ball position is located initial position's below, and in garrulous ball position, garrulous club 4 passes first pipe 6 and stretches into the feed inlet of ball bed formula high temperature heap so that smash the stifled fuel ball of card in the ball bed formula high temperature heap. That is, the driving device can drive the ball crushing rod 4 to move downwards to a preset position (extending into the feed inlet of the pebble bed type high-temperature reactor) so as to crush the fuel balls blocked in the pebble bed type high-temperature reactor.
In some embodiments, the second orifice of the first pipe 6 is provided with an isolation valve 14 for controlling the opening and closing of the first pipe. Therefore, when the material taking assembly cannot suck out the blocked fuel balls, the isolation valve 14 can be opened, so that the second pipe opening (the upper pipe opening) of the first pipe 6 is opened, the ball crushing rod 4 can move downwards, and the ball crushing rod 4 penetrates through the first pipe 6 and extends into the feed inlet of the ball bed type high-temperature reactor so as to crush the blocked fuel balls in the ball bed type high-temperature reactor.
In some embodiments, the material taking assembly further comprises a protective cover 15, the protective cover 15 is arranged on the material taking frame 5, the opening of the protective cover 15 faces to the lower side, the protective cover 15 has a preset size in the up-down direction, and at least part of the ball crushing rod 4 is positioned in the protective cover 15. Specifically, the protective cover 15 is a cylindrical cover body extending in the up-down direction, and the upper portion of the pool cue 4 is located inside the protective cover, so that the protective cover 15 can prevent the pool cue 4 from being damaged.
In some embodiments, the opening at the bottom of the protective cover 15 is connected to the second orifice of the first tube 6, i.e. the protective cover 15 is integrally formed with the first tube 6.
In some embodiments, the driving device comprises a first driving motor 8 and a worm gear driver 9, the first driving motor 8 and the worm gear driver 9 are both arranged on the material taking frame 5, an output shaft of the driving motor is connected with the worm gear driver, and the worm gear driver is in screw transmission with the ball smashing rods 4 so as to drive the ball smashing rods 4 to move in the up-and-down direction. For example, the axial direction of the output shaft of the first drive motor 8 is the left-right direction, the worm gear-worm driver 9 includes a worm and a helical gear, the worm is coaxially disposed and connected with the output shaft of the first drive motor 8, and helical teeth on the worm are engaged with the tooth surface of the helical gear. The outside of the ball crushing rod 4 is sleeved on the nut which is in transmission with the screw rod, and the helical gear is fixedly sleeved outside the nut, so that the helical gear can drive the ball crushing rod 4 to move up and down when rotating.
In some embodiments, the driving device includes a first telescopic cylinder, a cylinder body of the first telescopic cylinder is arranged on the material taking frame 5, a telescopic part of the first telescopic cylinder can move along the up-down direction, and the telescopic part of the first telescopic cylinder is connected with the ball smashing rod 4 so as to drive the ball smashing rod 4 to move along the up-down direction.
The invention also provides a ball bed type high temperature reactor reclaiming method, which comprises the ball bed type high temperature reactor reclaiming device 100 according to the embodiment of the invention, and the ball bed type high temperature reactor reclaiming method according to the embodiment of the invention comprises the following steps:
and (3) communicating a material taking port 3 of the material taking pipe 1 with a feed port of the ball bed type high temperature reactor, and starting a negative pressure fan so as to suck out the fuel balls blocked in the ball bed type high temperature reactor.
And/or the ball crushing rod 4 extends into the feed inlet of the ball bed type high temperature reactor so as to crush the fuel balls blocked in the ball bed type high temperature reactor, the material taking port 3 of the material taking pipe 1 is communicated with the feed inlet of the ball bed type high temperature reactor, and the negative pressure fan is started so as to suck out the fuel balls blocked in the ball bed type high temperature reactor.
That is to say, the ball bed type high temperature reactor reclaiming method according to the embodiment of the invention comprises the steps of communicating the material taking port 3 of the material taking pipe 1 with the material inlet of the ball bed type high temperature reactor and starting a negative pressure fan to suck out fuel balls. Or after the fuel ball cannot be directly sucked out, the broken ball rod 4 is used for mashing the blocked fuel ball and then sucking out the broken fuel ball. Or directly using the ball breaking rod 4 to smash the blocked fuel balls and then sucking out the broken fuel balls.
In some embodiments, the pebble bed high temperature reactor reclaimer device 100 is arranged above the feeding port of the pebble bed high temperature reactor, and the first pipe 6 of the pebble bed high temperature reactor reclaimer device 100 is arranged opposite to the feeding port of the pebble bed high temperature reactor in the up-down direction. Therefore, the material taking pipe 1 can move downwards conveniently to be communicated with a feeding hole of the pebble bed type high-temperature reactor.
Specifically, in an initial state, the material taking pipe 1 is in an upper limit position; when the fuel ball is blocked, the system releases pressure, and the material taking operation condition is met; the material taking pipe 1 moves downwards to be communicated with a feed inlet of the ball bed type high-temperature reactor, the isolation valve 14 below the ball crushing rod 4 is in a closed state, the external negative pressure fan is started, and the blocked fuel balls are sucked out through the material taking pipe 1 and conveyed to the external shielding tank through the ball outlet channel to be stored.
If the blocked fuel ball cannot be taken out smoothly after multiple operations, the external negative pressure fan is closed, the isolation valve 14 below the ball crushing rod 4 is opened, the ball crushing rod 4 is driven to move downwards, and the ball crushing rod 4 passes through the first pipe 6 to reach the position of the blocked fuel ball to crush the fuel ball. After the fuel balls are mashed, the ball crushing rod 4 moves upwards to reach an initial position; then the isolation valve 14 is closed, and the negative pressure fan is started to suck until all the broken balls are sucked out.
After the blocked fuel balls are sucked out, the material taking pipe 1 moves upwards to recover the initial state, the fault is relieved, and the system recovers the normal operation.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the above embodiments have been shown and described, it should be understood that they are exemplary and should not be construed as limiting the present invention, and that many changes, modifications, substitutions and alterations to the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A pebble-bed high-temperature stacking and reclaiming device is characterized by comprising:
the material taking assembly comprises a negative pressure fan and a material taking pipe, the material taking pipe is provided with a connecting port and a material taking port, an air suction port of the negative pressure fan is connected with the connecting port, the material taking pipe can move relative to the negative pressure fan, and the material taking port is suitable for being communicated with a feed port of the ball bed type high temperature reactor so as to take out fuel balls blocked in the ball bed type high temperature reactor;
the material taking assembly comprises a driving device and a ball smashing rod, the ball smashing rod extends along a first direction, the driving device can drive the ball smashing rod to move along the first direction so that the ball smashing rod has an initial position and a ball smashing position, and in the ball smashing position, the ball smashing rod extends into a feeding hole of the pebble-bed type high-temperature reactor so as to smash fuel balls blocked in the pebble-bed type high-temperature reactor.
2. The pebble-bed high-temperature reactor reclaiming device according to claim 1, which comprises a material taking frame and a moving device, wherein the moving device, the material taking pipe and the driving device are all arranged on the material taking frame, and the moving device can drive the material taking pipe to move so that the material taking port is communicated with a feeding port of the pebble-bed high-temperature reactor.
3. The pebble bed high temperature stacker reclaimer device of claim 2, wherein,
the material taking pipe comprises a first pipe and a second pipe, the first pipe extends along the vertical direction, the first pipe is provided with a first pipe orifice and a second pipe orifice, the first pipe orifice is positioned below the second pipe orifice, the first pipe orifice forms the material taking port, the second pipe is provided with a third pipe orifice and a fourth pipe orifice, the third pipe orifice is communicated with the first pipe, and the fourth pipe orifice forms the connecting port;
the moving device can drive the material taking pipe to move downwards so that the material taking opening is communicated with a feeding opening of the pebble-bed type high-temperature reactor, the first direction is the vertical direction, the extending direction of the ball smashing rod is the vertical direction, the ball smashing rod is positioned above the first pipe, the driving device can drive the ball smashing rod to move along the vertical direction so that the ball smashing rod is provided with the initial position and the ball smashing position, the ball smashing position is positioned below the initial position, and at the ball smashing position, the ball smashing rod penetrates through the first pipe and extends into the feeding opening of the pebble-bed type high-temperature reactor so as to smash fuel balls blocked in the pebble-bed type high-temperature reactor.
4. The pebble bed high temperature stacker reclaimer device of claim 3,
the driving device comprises a first driving motor and a worm gear driver, the first driving motor and the worm gear driver are both arranged on the material taking frame, an output shaft of the driving motor is connected with the worm gear driver, and the worm gear driver is in transmission with the broken ball rod screw rod so as to drive the broken ball rod to move in the up-down direction;
or the driving device comprises a first telescopic cylinder, a cylinder body of the first telescopic cylinder is arranged on the material taking frame, a telescopic part of the first telescopic cylinder can move along the up-down direction, and the telescopic part of the first telescopic cylinder is connected with the ball smashing rod so as to drive the ball smashing rod to move along the up-down direction.
5. The pebble bed type high-temperature stacking and reclaiming device according to claim 3, wherein the moving device comprises a second driving motor, a screw rod and a moving frame, the moving frame is movably arranged on the material taking frame along the up-down direction, the material taking pipe is arranged on the moving frame, the length direction of the screw rod is the up-down direction, the screw rod is rotatably arranged on the material taking frame, the screw rod is in transmission with the screw rod of the moving frame, the second driving motor is arranged on the material taking frame, and the second driving motor is connected with the screw rod so as to drive the screw rod to rotate on the material taking frame.
6. The pebble bed high temperature stacker reclaimer device of claim 5, wherein a plurality of guide pillars are provided on the reclaimer frame, the guide pillars extend in an up-down direction, and the movable frame is movably provided on the plurality of guide pillars in the up-down direction.
7. The pebble bed high-temperature stacker reclaimer device of claim 3, wherein an isolation valve for controlling the opening and closing of the second pipe orifice of the first pipe is arranged on the second pipe orifice of the first pipe.
8. The pebble bed high temperature pile extracting device according to claim 1, wherein the extracting assembly further comprises a protective cover, the protective cover is arranged on the extracting frame, the opening of the protective cover faces to the lower side, the protective cover has a preset size in the vertical direction, and at least part of the ball breaking rod is positioned in the protective cover.
9. A pebble bed high temperature stacker reclaimer method, comprising the pebble bed high temperature stacker reclaimer device of any one of claims 1 to 8, comprising the steps of:
communicating a material taking port of a material taking pipe with a material inlet of the ball bed type high temperature reactor, and starting a negative pressure fan so as to suck out fuel balls blocked in the ball bed type high temperature reactor;
and/or, the ball crushing rod extends into a feed inlet of the ball bed type high-temperature reactor so as to crush the fuel balls blocked in the ball bed type high-temperature reactor, a material taking port of a material taking pipe is communicated with the feed inlet of the ball bed type high-temperature reactor, and a negative pressure fan is started so as to suck out the fuel balls blocked in the ball bed type high-temperature reactor.
10. The pebble bed high temperature heap reclaiming method of claim 9,
the pebble bed high-temperature reactor reclaiming device is the pebble bed high-temperature reactor reclaiming device as defined in any one of claims 3 to 8;
the ball bed type high-temperature stacking and reclaiming method further comprises the following steps: and arranging the ball bed type high-temperature reactor reclaiming device above the feed inlet of the ball bed type high-temperature reactor, wherein the first pipe of the ball bed type high-temperature reactor reclaiming device and the feed inlet of the ball bed type high-temperature reactor are oppositely arranged in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211121012.0A CN115359936A (en) | 2022-09-15 | 2022-09-15 | Ball bed type high-temperature stacking and taking device and ball bed type high-temperature stacking and taking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211121012.0A CN115359936A (en) | 2022-09-15 | 2022-09-15 | Ball bed type high-temperature stacking and taking device and ball bed type high-temperature stacking and taking method |
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| CN115359936A true CN115359936A (en) | 2022-11-18 |
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|---|---|---|---|
| CN202211121012.0A Pending CN115359936A (en) | 2022-09-15 | 2022-09-15 | Ball bed type high-temperature stacking and taking device and ball bed type high-temperature stacking and taking method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117275776A (en) * | 2023-09-22 | 2023-12-22 | 华能核能技术研究院有限公司 | Automatic loading device for new fuel of pebble bed reactor |
-
2022
- 2022-09-15 CN CN202211121012.0A patent/CN115359936A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117275776A (en) * | 2023-09-22 | 2023-12-22 | 华能核能技术研究院有限公司 | Automatic loading device for new fuel of pebble bed reactor |
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