CN103762000A - Ball stopper applied to high-temperature gas-cooled reactor - Google Patents
Ball stopper applied to high-temperature gas-cooled reactor Download PDFInfo
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- CN103762000A CN103762000A CN201410036723.7A CN201410036723A CN103762000A CN 103762000 A CN103762000 A CN 103762000A CN 201410036723 A CN201410036723 A CN 201410036723A CN 103762000 A CN103762000 A CN 103762000A
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- rotor
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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 stopper applied to a high-temperature gas-cooled reactor. The ball stopper comprises a box body assembly, a power part, a magnetic transmission device, a rotor assembly and a shield, wherein the box body assembly comprises a box body with ball through holes and a rotor sink hole in the surface, as well as a ball inlet pipe and a ball outlet pipe which are connected with the box body; the ball through holes, the ball inlet pipe and the ball outlet pipe are coaxial and isometric and are perpendicular to the rotor sink hole; the rotor assembly comprises a bearing and a rotor; the rotor is supported in the rotor sink hole of the box body through the bearing and connected with an inner magnetic assembly of the magnetic transmission device; the rotor is provided with a rotor through hole; the diameter of the rotor through hole is the same as that of each of the ball through holes, the ball inlet pipe and the ball outlet pipe and is greater than that of a spherical element; the shield is connected with a bracket of the magnetic transmission device; the power part is arranged in the shield and connected with the bracket of the magnetic transmission device through a shaft coupler assembly. According to the ball stopper, the stopping and running functions can be performed on single column of spherical elements, and the operating reliability requirements of long-term intermittent running can be met.
Description
Technical field
The present invention relates to reactor engineering, be specifically related to a kind of trapping device that is applied to high temperature gas cooled reactor.
Background technology
Pebble bed high temperature reactor adopts the mode of spheric fuel element (hereinafter referred is ball type device) Multiple through then out reactor core to realize not shutdown and moves continuously.In HTR-PM Demonstration Station, the fuel sphere quantity that two heaps participate in circulation every day reaches 12000,250/hour of rate of circulation, and Rapid Circulation speed is up to 375～500/hour, and the fresh fuel that every day, two heaps packed into and the spentnuclear fuel drawing off are all about 800.Chinese invention patent CN101083153B discloses a kind of at high temperature gas cooled reactor line refuelling system for HTR-PM project, for the high temperature gas-cooled experimental reactor of HTR-10, increasing substantially of the fuel handling of HTR-PM and circulating load, in each ball stream pipe system, except carrying out simplification conveying function, reactor fuel circulation burnup measurement technique at described online refuelling system, the atmosphere of fresh fuel charging and spentnuclear fuel discharging is switched technique, and other need in the temporary pipeline of fuel sphere, the trapping device of the single-row fuel sphere execution on-off function in a kind of flow all must be set, by the ball type device of bunchiness being carried out to batched operation to meet the requirement of travelling speed and ability, thereby guarantee utilizability and the economy of Demonstration Station.
In prior art, there is a kind of helium space sealing gearing containing under the hot operating mode of radioactive dust for work chamber can carry out similar functions, this device is provided with radiator structure and crosses ball passage, can, under the warm helium positiver sealing of centering condition, guarantee that ball type device, dust and disintegrating slag pass through smoothly.This device is applicable to the trapping of cold fresh fuel ball and passes through, for thering is hot and with reactor core circulation ball type device or the spent fuel element of waste heat, one side single trapping amount is large and the trapping time is long, cross on the other hand ball amount large, thereby the temperature that device bears is higher, accumulation gamma-ray irradiation dosage is large, and disclosed device can not meet the reliability requirement of long-time running.
Summary of the invention
(1) technical matters solving
For the deficiencies in the prior art, the invention provides a kind of trapping device that is applied to high temperature gas cooled reactor, this trapping device can be carried out and stop and conducting function for hot with the single-row ball type device of waste heat, and in high temperature nuclear reactor lifetime, can meet the operational reliability requirement of long-term intermittent operation.
(2) technical scheme
For realizing above object, the present invention is achieved by the following technical programs:
A trapping device that is applied to high temperature gas cooled reactor, is characterized in that, described trapping device comprises box assembly, power part, magnetic driver, rotor assembly and shielding, wherein:
Box assembly comprises that surface is with the casing of crossing ball through hole and rotor counterbore, and with the goal tube of described welding box body with go out bulb, describedly crosses ball through hole, goal tube and go out bulb coaxially isometrical, and its axis is vertical with the axis of described rotor counterbore;
Magnetic driver comprises interior magnetic assembly, cage, outer magnetic assembly and support, and described support compresses cage by first group of securing member and the first seal, and is connected with box assembly;
Rotor assembly comprises bearing and rotor, and described rotor, and is connected with the interior magnetic assembly of magnetic driver by bearings in the rotor counterbore of casing; Rotor is with the axis rotor through hole vertical with the axis of crossing ball through hole, the diameter of described rotor through hole with cross ball through hole, goal tube and go out the equal diameters of bulb, and be greater than the diameter of ball type device;
Described shielding is connected with the support of magnetic driver, and described power part is placed in shielding, and is connected with the support of magnetic driver by coupling assembly.
Preferably, described trapping device also comprises a middle flange that is provided with radiating fin and through hole, and described middle flange two ends are connected with magnetic driver with box assembly respectively with seal by securing member, and the rotating shaft of rotor is through middle flange through hole.
Preferably, described rotor through hole, the diameter crossing ball through hole, goal tube and go out bulb are within the scope of 62-65mm.
Preferably, described power part is comprised of the AC servo motor with rotary transformer and planet-gear speed reducer.
Preferably, described bearing is heat-resistance abrasion-resistance alloy bearing.
Preferably, described bearing has two, and is installed on respectively the rotor both sides in casing.
Preferably, the magnetic material in described magnetic driver adopts rare earth permanent-magnetic material.
(3) beneficial effect
The present invention at least has following beneficial effect:
The present invention mainly carries out stopping and conducting function to single-row ball type device by rotor through hole is set on rotor.In the situation that power part provides power, magnetic driver transmission, what rotor can make rotor through hole and casing by rotation crosses that ball through hole is connected or UNICOM's (that is cut-off) not, thereby can carry out stopping and conducting function to single-row ball type device by controlling the rotation of rotor.
Similar with electrical ball valve of the prior art, device of the present invention is respectively casing, rotor and driver part corresponding to the parts of valve seat, spool and electric device.But, electrical ball valve is mainly applicable to the break-make of liquid and gaseous medium, and its inner seal, as the heatproofs such as valve stem packing, valve base sealing, ball seal and radiation-resistant property are restricted, and be subject to running life with valve switch number of times closely relatedly, conventionally nuclear power valve is at 2000～5000 times.And the major function of the trapping device of this technological invention is that single-row consecutive ball type device is stopped and conducting, there is no interior seal request, do not consider rotor wearing and tearing, adopt servo system control, frequent start-stop can be met tens thousand of times, and the long-life reliability service requirement under strong gamma-ray irradiation dosage can be met.
Specifically, in the high temperature gas cooled reactor trapping device providing in technical solution of the present invention, other parts except servo-drive system are mainly made by metal material, and the rare earth permanent-magnetic material in magnetic driver has also passed through irradiation test, all can meet running environment requirement.
But owing to there being the nonmetallic materials such as wire, insullac, lubricant grease, electrical connector, servo-drive system be difficult to bear surpass high by 10
3γ irradiation dose more than Gy, and heat resistance is also restricted.Tackle this problem, the present invention is provided with shielding, and this shielding can effectively reduce gamma-rays from the fuel element irradiation damage to servo-drive system, guarantees its serviceable life.
On the other hand, trapping device of the present invention is provided with the special-purpose flange with radiating fin, and radiator structure can be freely set, processing, manufacture and easy for installation, and cost is low, and good heat dissipation effect can effectively guarantee that servo-drive system avoids the heat effect of fuel element waste heat; And prior art scheme is often arranged on heat radiator on the cage of magnetic driver, due to the primary pressure-bearing function that guarantees cage, cage has adopted the thin-walled TC4 titanium alloy that eddy current loss is little, the radiating fin quantity arranging on it and size-constrained, difficulty of processing is large, manufacturing cost is high, radiating effect is restricted, cause the long-term work at a certain temperature of magnetic driver and servo-drive system, affect usability and the life-span of the two.
And high temperature gas cooled reactor trapping device of the present invention adopts duplex bearing configuration, and is placed in rotor both sides, be arranged in casing, for prior art adopts cantilever rotor, carrying operating mode is better, turns round more steady.
Certainly, implement arbitrary product of the present invention or method and might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the structure of high temperature gas cooled reactor trapping device related in one embodiment of the invention is dissectd front view;
Fig. 2 is the biopsy cavity marker devices detail drawing of high temperature gas cooled reactor trapping device body construction related in one embodiment of the invention;
Fig. 3 is the cross-sectional side elevational view of high temperature gas cooled reactor trapping device structure related in one embodiment of the invention of the present invention;
Wherein, 1: power part; 2: coupling assembly; 3: magnetic driver;
4: rotor assembly; 5: middle flange; 6: box assembly; 7: servo-drive system;
8: shaft coupling; 9: outer magnetic assembly; 10: support; 11: interior magnetic assembly;
12: cage; 13: rotor counterbore; 14: goal through hole; 15: goal tube;
16: casing; 17: rotary drum; 18: bearing; 19: go out bulb; 20: goal passage;
21: rotor through hole; 22: go out ball passage; 23: go out ball through hole; 24: the first seals;
25: the first seal weld lip limits; 26: the first groups of securing members; 27: radiating fin;
28: the second seal weld lip limits; 29: the second seals; 30: the second groups of securing members;
31: rotating shaft; 32: shielding.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention has proposed a kind of trapping device that is applied to high temperature gas cooled reactor, referring to Fig. 1 to Fig. 3, high temperature gas cooled reactor trapping device involved in the present invention comprises power part 1, coupling assembly 2, magnetic driver 3, rotor assembly 4, middle flange 5, box assembly 6 and shielding 32.
Rotor assembly comprises bearing 18 and rotor (comprising rotary drum 17 and rotating shaft 31), and the rotary drum 17 of described rotor is supported in the rotor counterbore 13 of casing 16 by bearing 18, and is connected with the interior magnetic assembly 11 of magnetic driver 3; The rotary drum 17 of rotor is with a rotor through hole 21, the diameter of described rotor through hole 21 with cross ball through hole (goal through hole 20 and go out ball through hole 22), goal tube 15 and go out the equal diameters of bulb 19, and be greater than the diameter of ball type device.
The internal diameter of described goal tube 15, the internal diameter that goes out bulb 19, goal through hole 20, the diameter that goes out ball through hole 22 and rotor through hole 21 are Φ 65mm, be slightly larger than ball type device diameter of phi 60mm, it is that Φ 65mm is vertical or tilted on bulb road that described trapping device is installed on internal diameter, ball type device can utilize its favourable geometric configuration and self gravitation to flow at each passage and turnover bulb, and is unlikely to occur blocking.
Described trapping device also comprises a middle flange 5 and a shielding 32; by the radiating fin 27 arranging on described middle flange 5; can realize the waste heat efficiently radiates heat to ball type device in trapping device; the middle flange cylindrical shell with enough wall thickness and length can serve as axial shield; together with being used as the shielding 32 radially shielding; common realization being positioned at the shielding of the power part 1 outside shielding 32 and magnetic driver 3; protection mask system is avoided excessive gamma-ray irradiation, guarantees the operation life of power part 1.
The cage 12 of described magnetic driver 3, the casing 16 of middle flange 5 and box assembly 6 forms a helium seal cavity, for realizing the positiver sealing to the very strong helium of perviousness, one end of described middle flange 5 is connected with the casing 16 of box assembly 6 with the first seal 24 by first group of securing member 26, its other end is by means of second group of securing member 30, by the support 10 of magnetic driver 3, compress the cage 12 of magnetic driver 3, and utilize the second seal 29 to realize the external seal of helium medium, in addition, the two ends of middle flange 5 also can be respectively by implementing seal weld to the first close sealing lip limit 25 and the second seal weld lip limit 28, guarantee the zero leakage sealing in described helium space.
The output shaft of described power part 1 is connected with the outer magnet rotor 9 of described magnetic driver 3 by described coupling assembly 2, the interior magnetic assembly (internal rotor) 11 of magnetic driver 3 is connected with the rotating shaft 31 of rotor assembly 4 by spline, because the rotary drum 17 of rotor assembly 4 straddles in the rotor counterbore 13 of casing 16 by two side bearings 18, described bearing adopts the alloy bearing of heat-resistant antifriction, and the force status of bearing is simple.
The conducting of mainly carrying out fluid media (medium) from electrical ball valve is different with sealing cutoff function, trapping device is only carried out the conducting of ball stream and the function of stopping, and do not carry out sealing cutoff function, thereby the moment of torsion of trapping device is less, thereby power part 1 can adopt with the servomotor of high-precision rotary transformer and the high planet-gear speed reducer of resolving accuracy, not only compact conformation, controls reliable, and can frequent start-stop, meet long-life running requirements.On the other hand; owing to having adopted magnetic driver, under the physical isolation of cage, realized the contactless Flexible Transmission from power part 1 to rotor assembly 4; avoid motive seal leakage problem, can avoid overload impact by the overload slippage protection servo-drive system of interior outer magnetic assembly again.
Described trapping device is in normally off, be that the rotor through hole 21 of described rotor assembly 4 is conventionally in blocking ball stream pipeline state, ball type device arrival rotary drum 17 places from upstream are stopped by rotary drum, when needed, under master control system instruction, power part 1 drives outer magnetic assembly 9 half-twists of magnetic driver 3, and under magnetic coupling interaction, the rotating shaft 31 that drives interior magnetic assembly 11 and be attached thereto is rotated 90 °, the same half-twist of rotary drum 17, make rotor through hole 21 in ball stream pipeline conduction position, thereby the single or tandem ball type device of originally being stopped on rotary drum is smooth in trapping device under Action of Gravity Field.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a trapping device that is applied to high temperature gas cooled reactor, is characterized in that, described trapping device comprises box assembly, power part, magnetic driver, rotor assembly and shielding, wherein:
Box assembly comprises that surface is with the casing of crossing ball through hole and rotor counterbore, and with the goal tube of described welding box body with go out bulb, describedly crosses ball through hole, goal tube and go out bulb coaxially isometrical, and its axis is vertical with the axis of described rotor counterbore;
Magnetic driver comprises interior magnetic assembly, cage, outer magnetic assembly and support, and described support compresses cage by first group of securing member and the first seal, and is connected with box assembly;
Rotor assembly comprises bearing and rotor, and described rotor, and is connected with the interior magnetic assembly of magnetic driver by bearings in the rotor counterbore of casing; Rotor is with the axis rotor through hole vertical with the axis of crossing ball through hole, the diameter of described rotor through hole with cross ball through hole, goal tube and go out the equal diameters of bulb, and be greater than the diameter of ball type device;
Described shielding is connected with the support of magnetic driver, and described power part is placed in shielding, and is connected with the support of magnetic driver by coupling assembly.
2. trapping device according to claim 1, it is characterized in that, described trapping device also comprises a middle flange that is provided with radiating fin and through hole, and described middle flange two ends are connected with magnetic driver with box assembly respectively with seal by securing member, and the rotating shaft of rotor is through middle flange through hole.
3. trapping device according to claim 1, is characterized in that, described rotor through hole, the diameter crossing ball through hole, goal tube and go out bulb are within the scope of 62-65mm.
4. trapping device according to claim 1, is characterized in that, described power part is comprised of the AC servo motor with rotary transformer and planet-gear speed reducer.
5. trapping device according to claim 1, is characterized in that, described bearing is heat-resistance abrasion-resistance alloy bearing.
6. trapping device according to claim 1, is characterized in that, described bearing has two, and is installed on respectively the rotor both sides in casing.
7. trapping device according to claim 1, is characterized in that, the magnetic material in described magnetic driver adopts rare earth permanent-magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410036723.7A CN103762000A (en) | 2014-01-24 | 2014-01-24 | Ball stopper applied to high-temperature gas-cooled reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410036723.7A CN103762000A (en) | 2014-01-24 | 2014-01-24 | Ball stopper applied to high-temperature gas-cooled reactor |
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| CN103762000A true CN103762000A (en) | 2014-04-30 |
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| CN201410036723.7A Pending CN103762000A (en) | 2014-01-24 | 2014-01-24 | Ball stopper applied to high-temperature gas-cooled reactor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9786391B2 (en) | 2015-02-19 | 2017-10-10 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| CN109545407A (en) * | 2018-11-28 | 2019-03-29 | 清华大学 | Ball type device detects positioning device |
| CN109785985A (en) * | 2018-12-30 | 2019-05-21 | 清华大学 | A kind of ball type device detection positioning device |
| US10522255B2 (en) | 2015-02-19 | 2019-12-31 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| WO2021248389A1 (en) * | 2020-06-10 | 2021-12-16 | 中广核研究院有限公司 | Self-rotating shielding device and use method therefor |
| CN115083644A (en) * | 2022-06-20 | 2022-09-20 | 华能核能技术研究院有限公司 | High-temperature gas cooled reactor passing ball flow choking device capable of operating in one direction |
| CN115171931A (en) * | 2022-06-24 | 2022-10-11 | 华能山东石岛湾核电有限公司 | Material level controllable ball falling device of high-temperature gas cooled reactor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233522A (en) * | 1986-04-02 | 1987-10-13 | Ntn Toyo Bearing Co Ltd | Equal velocity universal joint |
| CN201065953Y (en) * | 2007-07-30 | 2008-05-28 | 吴晓立 | High-temperature gate valve |
| CN101800087A (en) * | 2010-03-02 | 2010-08-11 | 清华大学 | High-temperature pebble-bed reactor fuel element multidirectional distributor |
| CN102097144A (en) * | 2010-11-02 | 2011-06-15 | 清华大学 | Singularized spherical-element conveying device applied to high-temperature gas cooled reactor |
| CN202679218U (en) * | 2012-04-20 | 2013-01-16 | 林贵生 | Permanent magnetic coupling transmission, braking or load apparatus with cooling and lubricating devices |
| CN103172013A (en) * | 2011-04-20 | 2013-06-26 | 贺钢 | Dual-channel control valve |
-
2014
- 2014-01-24 CN CN201410036723.7A patent/CN103762000A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233522A (en) * | 1986-04-02 | 1987-10-13 | Ntn Toyo Bearing Co Ltd | Equal velocity universal joint |
| CN201065953Y (en) * | 2007-07-30 | 2008-05-28 | 吴晓立 | High-temperature gate valve |
| CN101800087A (en) * | 2010-03-02 | 2010-08-11 | 清华大学 | High-temperature pebble-bed reactor fuel element multidirectional distributor |
| CN102097144A (en) * | 2010-11-02 | 2011-06-15 | 清华大学 | Singularized spherical-element conveying device applied to high-temperature gas cooled reactor |
| CN103172013A (en) * | 2011-04-20 | 2013-06-26 | 贺钢 | Dual-channel control valve |
| CN202679218U (en) * | 2012-04-20 | 2013-01-16 | 林贵生 | Permanent magnetic coupling transmission, braking or load apparatus with cooling and lubricating devices |
Cited By (15)
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|---|---|---|---|---|
| US11081241B2 (en) | 2015-02-19 | 2021-08-03 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| US9793010B2 (en) | 2015-02-19 | 2017-10-17 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| US9786391B2 (en) | 2015-02-19 | 2017-10-10 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| US10522255B2 (en) | 2015-02-19 | 2019-12-31 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| US10770187B2 (en) | 2015-02-19 | 2020-09-08 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| US10902956B2 (en) | 2015-02-19 | 2021-01-26 | X-Energy, Llc | Nuclear fuel pebble and method of manufacturing the same |
| CN109545407A (en) * | 2018-11-28 | 2019-03-29 | 清华大学 | Ball type device detects positioning device |
| CN109545407B (en) * | 2018-11-28 | 2020-06-09 | 清华大学 | Spherical element detecting and positioning device |
| CN109785985A (en) * | 2018-12-30 | 2019-05-21 | 清华大学 | A kind of ball type device detection positioning device |
| US11551825B2 (en) | 2018-12-30 | 2023-01-10 | Tsinghua University | Spherical element detecting and positioning device for a pebble bed nuclear reactor |
| WO2021248389A1 (en) * | 2020-06-10 | 2021-12-16 | 中广核研究院有限公司 | Self-rotating shielding device and use method therefor |
| CN115083644A (en) * | 2022-06-20 | 2022-09-20 | 华能核能技术研究院有限公司 | High-temperature gas cooled reactor passing ball flow choking device capable of operating in one direction |
| CN115083644B (en) * | 2022-06-20 | 2023-08-22 | 华能核能技术研究院有限公司 | Ball passing and flow blocking device of high-temperature gas cooled reactor capable of running in one direction |
| CN115171931A (en) * | 2022-06-24 | 2022-10-11 | 华能山东石岛湾核电有限公司 | Material level controllable ball falling device of high-temperature gas cooled reactor |
| CN115171931B (en) * | 2022-06-24 | 2024-01-23 | 华能山东石岛湾核电有限公司 | Material level controllable ball falling device for high-temperature gas cooled reactor |
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