CN115424752A - Spherical element single conveying device - Google Patents

Spherical element single conveying device Download PDF

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Publication number
CN115424752A
CN115424752A CN202211083512.XA CN202211083512A CN115424752A CN 115424752 A CN115424752 A CN 115424752A CN 202211083512 A CN202211083512 A CN 202211083512A CN 115424752 A CN115424752 A CN 115424752A
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CN
China
Prior art keywords
pipeline
ball
blocking
isolation valve
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211083512.XA
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Chinese (zh)
Inventor
李震
王赛
李洪磊
张宜金
陈立强
封洁
林罗波
李彦威
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Shandong Shidaobay Nuclear Power Co Ltd
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Huaneng Shandong Shidaobay Nuclear Power Co Ltd
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Application filed by Huaneng Shandong Shidaobay Nuclear Power Co Ltd filed Critical Huaneng Shandong Shidaobay Nuclear Power Co Ltd
Priority to CN202211083512.XA priority Critical patent/CN115424752A/en
Publication of CN115424752A publication Critical patent/CN115424752A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C19/00Arrangements 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
    • G21C19/19Reactor parts specifically adapted to facilitate handling, e.g. to facilitate charging or discharging of fuel elements
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The invention provides a single conveying device for spherical elements, which comprises a ball receiving pipeline, a ball discharging pipeline and an elastic resistance mechanism, wherein the elastic resistance mechanism comprises a shell, at least one blocking piece and at least one elastic piece; the shell is respectively communicated with the ball receiving pipeline and the ball discharging pipeline; the blocking piece is movably arranged in the shell, and the elastic piece is arranged between the corresponding blocking piece and the inner wall of the shell in a pre-set pretightening force; the pre-tightening force can switch the blocking piece between a blocking position and a releasing position; wherein, in the blocking position, the blocking member abuts the spherical element; in the release position, the stop member clears the spherical element. The single conveying device with the structure can realize single conveying of the spherical elements and also can reduce the problems caused by the failure of mechanical rotating equipment.

Description

Spherical element single conveying device
Technical Field
The invention belongs to the technical field of conveying devices, and particularly relates to a single conveying device for spherical elements.
Background
The high temperature gas cooled reactor demonstration engineering fuel loading and unloading system adopts a mode of changing fuel without stopping reactor operation, and the fuel loading and unloading system realizes new fuel loading, spent fuel unloading and fuel circulation in the reactor operation process. In order to accurately record the quantity and position of fuel elements when the fuel elements flow in the ball path, a device for realizing the single conveying function of the fuel elements, such as a choke, is arranged in a pipeline of the fuel loading and unloading system. Each reactor is provided with three flow resistors, two of the flow resistors are used for new fuel charging and fuel main circulation, and the other one is used for spent fuel discharging.
The fuel loading and unloading system spoiler comprises casing and rotor subassembly, and the inside of casing is equipped with the cavity, is equipped with feed inlet and discharge gate with the cavity intercommunication on the casing. The rotor assembly comprises a rotating shaft and a rotating disc; the rotating shaft is rotatably arranged in the cavity around the axis of the rotating shaft, and the rotating disc is coaxially arranged on the rotating shaft. The flow plug belongs to an active component, and the flow plug needs to act 3000 times per day according to the demonstration engineering design of the high-temperature gas cooled reactor.
After long-time operation, the problems of multiple emptying, ball clamping, ball cutting and the like of the flow plug are found, although the fault can be temporarily repaired by the measures of initialization operation, rotor speed change, driver replacement, disassembly maintenance and the like, the condition that the fault occurs frequently again still exists, and the core material dumping and the fuel circulation speed are seriously influenced.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a single conveying device for spherical elements.
The invention provides a single conveying device for spherical elements, which comprises a ball receiving pipeline, a ball discharging pipeline and an elastic resistance mechanism, wherein the elastic resistance mechanism comprises a shell, at least one blocking piece and at least one elastic piece;
the shell is respectively communicated with the ball receiving pipeline and the ball discharging pipeline;
the blocking piece is movably arranged in the shell, and the elastic piece is arranged between the corresponding blocking piece and the inner wall of the shell in a pre-set pretightening force;
the pre-tightening force can switch the blocking piece between a blocking position and a releasing position; wherein, in the blocking position, the blocking member abuts the spherical element; in the release position, the stop member clears the spherical element.
Optionally, the contact part of the blocking member and the spherical member is provided in an arc shape corresponding to the outer surface of the spherical member.
Optionally, the elastic resistance mechanism further comprises at least one active releasing component, and the active releasing component comprises a magnetizer, an electromagnet and a power supply;
the magnetizers are fixed on the corresponding blocking pieces, the first ends of the electromagnets are fixed on the shell and electrically connected with the power supply, and the second ends of the electromagnets are arranged at intervals opposite to the magnetizers; wherein, the first and the second end of the pipe are connected with each other,
when the electromagnet is electrified, the electromagnetic force generated between the electromagnet and the magnetizer overcomes the pretightening force so as to drive the blocking piece to move to the release position.
Optionally, the electromagnet is spaced from the magnetizer by a distance greater than a distance between the blocking position and the releasing position.
Optionally, the elastic member is a compression spring, and the compression spring is inserted with the electromagnet and the magnetizer.
Optionally, the compression spring, the electromagnet and the magnetizer are arranged in a collinear manner.
Optionally, the single conveying device further includes at least one first isolation valve, and the first isolation valve is arranged in series in the ball receiving pipeline; and/or the presence of a gas in the gas,
the single conveying device further comprises at least one second isolation valve, and the second isolation valve is arranged in the ball unloading pipeline in series.
Optionally, the single conveying device further comprises a pressure relief pipeline and a pressure relief valve;
when the single conveying device comprises a first isolation valve and a second isolation valve, the pressure relief pipeline is communicated with a pipeline between the first isolation valve and the second isolation valve, and the pressure relief valve is serially arranged on the pressure relief pipeline.
Optionally, the single conveying device further includes a charging pipeline and a charging valve;
the charging pipeline is communicated with a pipeline between the first isolation valve and the second isolation valve, and the charging valve is serially arranged on the charging pipeline.
Optionally, the single conveying device further comprises a communicating pipeline and a pressure gauge;
the first end of the communicating pipeline is communicated with the pipeline between the first isolating valve and the second isolating valve, the second end of the communicating pipeline is respectively communicated with the pressure relief pipeline and the pressurizing pipeline, and the pressure gauge is serially arranged on the communicating pipeline.
The single conveying device for the spherical elements can realize single conveying of the spherical elements through the arranged ball receiving pipeline, the ball unloading pipeline and the elastic resistance mechanism, can eliminate the problems caused by frequent action of mechanical rotating equipment at the present stage through the device without the mechanical rotating equipment, and has the advantages of simple structure, convenience in processing and low cost.
Drawings
Fig. 1 is an enlarged schematic structural view of an elastic resistance mechanism of a single spherical element conveying device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a single conveying device for spherical elements according to another embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, a single ball delivery device 100 for spherical elements, the single ball delivery device 100 includes a ball receiving pipe 110, a ball discharging pipe 120 and an elastic resistance mechanism 130. The elastic resistance mechanism 130 includes a housing 131, at least one blocking member 132, and at least one elastic member 133. The housing 131 is respectively communicated with the ball receiving pipeline 110 and the ball discharging pipeline 120. The blocking member 132 is movably disposed inside the housing 131, and the elastic member 133 is disposed between the corresponding blocking member 132 and the inner wall of the housing 131 with a pre-set pre-tightening force. The pre-load force can switch the blocking member 132 between a blocking position and a release position. Wherein, in the blocking position, the blocking member 132 abuts the spherical element 140. In the release position, the stop 132 clears the spherical element 140.
As an example, as shown in fig. 1, the number of the blocking members 132 and the number of the elastic members 133 are two, two blocking members 132 are symmetrically disposed inside the housing 131, and two elastic members 133 are respectively disposed between the corresponding blocking members 132 and the inner wall of the housing 131. Of course, the present invention is not limited thereto, and the blocking member 132 and the elastic member 133 may be correspondingly provided in other numbers as long as the requirement that the spherical element 140 can passively and singly pass through the elastic resistance mechanism 130 is satisfied.
In order to provide an avoidance space for the spherical element to pass through and a moving space for the blocking member, as shown in fig. 1, a central region of the housing 131 is provided with a communication chamber and a protruding inner chamber protruding outward from the communication chamber, the communication chamber is respectively communicated with the ball receiving pipeline 110 and the ball discharging pipeline 120 for the spherical element 140 to pass through, and the protruding inner chamber is provided with an elastic member 133 and can be used as a moving space for the blocking member 132.
Specifically, as shown in fig. 1 and 2, when the ball-shaped element single delivery device 100 is in operation, the blocking member 132 is in the blocking position under the pre-load force of the elastic member 133, and the first ball-shaped element 140 freely falls to the elastic resistance mechanism 130 through the ball catching pipe 110 by gravity. The first spherical element 140 abuts against the blocking member 132 in the blocking position, and the gravity component and the momentum component of the first spherical element 140 simultaneously act on the blocking member 132 to generate a compression force, but the compression force cannot overcome the pre-tightening force of the elastic member 133, so that the first spherical element 140 is stopped at the blocking member 132.
When the second spherical element 140 falls down similarly and contacts with the first spherical element 140, the resultant force of the gravity components of the two spherical elements 140 and the momentum component of the second spherical element 140 act on the two blocking members 132 together, the two blocking members 132 compress the two elastic members 133 respectively, the compression force overcomes the pre-tightening force preset by the two elastic members 133, the two elastic members 133 and the two blocking members 132 are compressed into the corresponding convex inner cavities, the two blocking members 132 are located at the release position, and the first spherical element 140 falls down and passes through the elastic resistance mechanism 130. The first spherical member 140 falling through the elastic resistance mechanism 130 continues to fall to the ball discharge pipe 120, and finally the first spherical member 140 is discharged through the ball discharge pipe 120.
It is understood that after the first spherical element 140 passes through the blocking member 132, the acting force applied to the elastic member 133 is reduced, and at this time, the elastic member 133 drives the blocking member 132 to return to the blocking position, so that the second spherical element 140 abuts against the two blocking members 132 and cannot fall down. When the third spherical element 140 falls and contacts the second spherical element 140, the second spherical element 140 falls through the elastic resistance mechanism, and the third spherical element 140 abuts against the two stoppers 132 and cannot fall. The subsequent dropping of the spherical elements 140 and so on has the effect of passing one spherical element 140 at a time.
It should be noted that the pre-tightening force preset by the elastic member 133 can be changed according to actual needs, so as to change the number of the spherical elements 140 temporarily stored at the blocking member 132, and achieve precise control of the movement of the spherical elements 140.
Preferably, as shown in fig. 1, a contact portion of the stopper 132 with the spherical member 140 is provided in an arc shape corresponding to an outer surface of the spherical member 140. The contact part of the blocking piece 132 and the spherical element 140 is set to be in a proper arc shape, so that blocking and releasing of the spherical element 140 can be better finished, and unnecessary collision is reduced. As shown in fig. 1, the blocking member 132 is configured in a shape of a canopy, and besides, the blocking member 132 may also be configured in other shapes, which is not limited in this embodiment.
The single conveying device for the spherical elements can realize single conveying of the spherical elements through the ball receiving pipeline, the ball unloading pipeline and the elastic resistance mechanism, can eliminate the problem caused by frequent action of mechanical rotating equipment at the present stage through the mechanical rotating equipment, and is simple in structure, convenient to process and low in cost.
Illustratively, as shown in fig. 1, the elastic resistance mechanism 130 further comprises at least one active release assembly 134, and the active release assembly 134 comprises a magnetizer 1341, an electromagnet 1342 and a power supply 1343. The magnetizer 1341 is fixed to the corresponding blocking member 132, a first end of the electromagnet 1342 is fixed to the housing 131 and electrically connected to the power source 1343, and a second end of the electromagnet 1342 is spaced from the magnetizer 1341. When the electromagnet 1342 is powered on, the electromagnetic force generated between the electromagnet 1342 and the magnetizer 1341 overcomes the pre-tightening force to drive the blocking member 132 to move to the release position.
Specifically, as shown in FIG. 1, under some special conditions, it may be desirable to empty the spherical element 140 at the stop 132. At this time, the power source 1343 is powered on to generate an electromagnetic force between the electromagnet 1342 and the magnetizer, and the electromagnetic force can overcome the pre-tightening force preset by the elastic member 133, so that the magnetizer 1341 fixed on the blocking member 132 can drive the blocking member 132 to move toward the electromagnet 1342, and further the blocking member 132 moves from the blocking position to the releasing position. When the stop 132 moves to the release position, the ball elements 140 sequentially drop down the ball discharge line 120 until the ball elements 140 at the stop 132 are empty. After the ball element 140 is emptied, the power source 1343 may be turned off to remove the electromagnetic force, and the elastic member 133 drives the blocking member 132 to move to the blocking position again after the electromagnetic force is removed.
Preferably, as shown in fig. 1, the electromagnet 1342 is spaced from the magnetizer 1341 by a distance greater than the distance between the blocking position and the releasing position. The elastic resistance mechanism arranged in this way can ensure that the spherical element can smoothly pass through the blocking piece and fall into the ball unloading pipeline.
Preferably, as shown in fig. 1, the elastic member 133 is a compression spring, and the electromagnet 1342 and the magnetizer 1341 are inserted into the compression spring. Further, as shown in fig. 1, centers of the compression spring, the electromagnet, and the magnetizer are arranged in line. As an example, as shown in fig. 1, the magnetizer 1341 and the electromagnet 1342 are both disposed in the hollow portion of the compression spring, and the centers of the three are collinear. The magnetizer 1341 may be a silicon steel sheet and fixed on the blocking member 132 by welding, the electromagnet 1342 may be an electromagnet with a metal coil wound on the outside and fixed on the inner wall of the casing 131 by welding, and the metal coil is connected to the power supply 1343 for power supply.
The single conveying device for spherical elements can realize the pipeline emptying function under abnormal conditions through the active release assembly, and is convenient for equipment maintenance.
Illustratively, as shown in fig. 2, the single delivery device 100 further includes at least one first isolation valve 150, and the first isolation valve 150 is serially connected to the ball-catching line 110. And/or, the single conveying device 100 further comprises at least one second isolation valve 160, and the second isolation valve 160 is arranged in series in the ball discharge pipeline 120.
Specifically, as shown in fig. 2, at least one first isolation valve 150 may be disposed on the ball catching line 110, and at least one second isolation valve 160 may be disposed on the ball discharging line 120. As an example, as shown in fig. 2, two first isolation valves 150 may be disposed adjacent to each other on the ball catching line 110, two second isolation valves 160 may be disposed adjacent to each other on the ball discharging line 120, and dual isolation valves may be disposed on the ball catching line 110 and the ball discharging line 120, respectively, to increase isolation reliability and to be suitable for high-pressure helium atmosphere isolation. Of course, the number of the first isolation valves arranged on the ball receiving pipeline and the second isolation valves arranged on the ball discharging pipeline is not particularly limited.
The spherical element single conveying device of the embodiment can realize the isolation state between the elastic resistance mechanism and the upstream of the ball receiving pipeline and the downstream of the ball discharging pipeline by closing the first isolation valve and the second isolation valve when the elastic resistance mechanism breaks down and needs to be disassembled for maintenance.
Illustratively, as shown in fig. 2, the single delivery device 100 further includes a pressure relief line 170 and a pressure relief valve 171. When the single conveying device 100 includes the first isolation valve 150 and the second isolation valve 160, the pressure relief pipeline 170 is communicated with a pipeline between the first isolation valve 150 and the second isolation valve 160, and the pressure relief valve 171 is serially connected to the pressure relief pipeline 170.
Specifically, as shown in fig. 2, after the first isolation valve 150 and the second isolation valve 160 are closed, if the pipeline between the two needs to be depressurized and overhauled, the pressure relief valve 171 may be opened, and the pressure is relieved through the pressure relief pipeline 170, and then the overhaul is performed after the depressurization is completed.
Preferably, as shown in fig. 2, the single delivery device 100 further includes a charging line 180 and a charging valve 181. The charging pipeline 180 is communicated with a pipeline between the first isolation valve 150 and the second isolation valve 160, and the charging valve 181 is connected in series to the charging pipeline 180.
Specifically, as shown in fig. 2, after the maintenance is completed, the pressurizing valve 181 may be opened, the pressurizing pipeline 180 may be used for pressurizing, and after the pressurizing is completed, the first isolating valve 150 and the second isolating valve 160 may be opened to recover the normal working state.
More preferably, as shown in fig. 2, the single delivery device 100 further comprises a communication pipeline 190 and a pressure gauge 191. A first end of the communication pipeline 190 is communicated with a pipeline between the first isolation valve 150 and the second isolation valve 160, a second end of the communication pipeline 190 is respectively communicated with the pressure relief pipeline 170 and the pressurization pipeline 180, and the pressure gauge 191 is serially connected to the communication pipeline 190.
Specifically, as shown in fig. 2, the pressure relief line 170 and the pressure charging line 180 are both in communication with a second end of a communication line 190, and a first end of the communication line 190 is in communication with a line between the first isolation valve 150 and the second isolation valve 160. The pressure gauge 191 is connected in series with the communication pipeline 190, and when the pressure gauge 191 displays that the value is atmospheric pressure, the pressure relief is finished. When the pressure gauge 191 displays that the pressure is the same as the pressure of the ball receiving pipeline 110 and the pressure of the ball discharging pipeline 120 during the pressurization, the pressurization valve 181 is closed, and the pressurization is finished.
The single conveyor of spherical element of this embodiment through pressure release pipeline, relief valve, the pipeline that pressurizes, pressure charging valve, intercommunication pipeline and the manometer that sets up, can make things convenient for this device fast overhaul and resume, reduces trouble influence range.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (10)

1. The single conveying device for the spherical elements is characterized by comprising a ball receiving pipeline, a ball unloading pipeline and an elastic resistance mechanism, wherein the elastic resistance mechanism comprises a shell, at least one blocking piece and at least one elastic piece;
the shell is respectively communicated with the ball receiving pipeline and the ball discharging pipeline;
the blocking piece is movably arranged in the shell, and the elastic piece is arranged between the corresponding blocking piece and the inner wall of the shell in a pre-tightening force with a preset size;
the pre-tightening force can switch the blocking piece between a blocking position and a releasing position; wherein, in the blocking position, the blocking member abuts the spherical element; in the release position, the stop member clears the spherical element.
2. The single ball element delivery apparatus according to claim 1, wherein the blocking member contact portion with the ball element is provided in an arc shape conforming to the outer surface of the ball element.
3. The ball element single delivery device according to claim 1, wherein said elastic resistance mechanism further comprises at least one active release assembly comprising a magnetizer, an electromagnet and a power source;
the magnetizers are fixed on the corresponding blocking pieces, the first ends of the electromagnets are fixed on the shell and electrically connected with the power supply, and the second ends of the electromagnets are arranged at intervals opposite to the magnetizers; wherein the content of the first and second substances,
when the electromagnet is electrified, the electromagnetic force generated between the electromagnet and the magnetizer overcomes the pretightening force so as to drive the blocking piece to move to the release position.
4. The ball element single delivery device according to claim 3, wherein the electromagnet is spaced from the magnetizer by a distance greater than the distance between the blocking position and the release position.
5. The single spherical element conveying device according to claim 3, wherein said elastic member is a compression spring, said compression spring being inserted with said electromagnet and said magnetizer.
6. The ball element single delivery device according to claim 5, wherein centers of the compression spring, the electromagnet and the magnetizer are arranged in line.
7. The single ball element conveying apparatus according to any one of claims 1 to 6, further comprising at least one first isolation valve, said first isolation valve being disposed in series with said ball-catching conduit; and/or the presence of a gas in the atmosphere,
the single conveying device further comprises at least one second isolation valve, and the second isolation valve is arranged in the ball unloading pipeline in series.
8. The ball element single delivery device according to claim 7, further comprising a pressure relief line and a pressure relief valve;
when the single conveying device comprises a first isolation valve and a second isolation valve, the pressure relief pipeline is communicated with a pipeline between the first isolation valve and the second isolation valve, and the pressure relief valve is serially arranged on the pressure relief pipeline.
9. The single spherical element delivery device according to claim 8, further comprising a charging line and a charging valve;
the charging pipeline is communicated with a pipeline between the first isolation valve and the second isolation valve, and the charging valve is serially arranged on the charging pipeline.
10. The single ball element transfer device according to claim 9, further comprising a communication line and a pressure gauge;
the first end of the communicating pipeline is communicated with the pipeline between the first isolating valve and the second isolating valve, the second end of the communicating pipeline is respectively communicated with the pressure relief pipeline and the pressurizing pipeline, and the pressure gauge is serially arranged on the communicating pipeline.
CN202211083512.XA 2022-09-06 2022-09-06 Spherical element single conveying device Pending CN115424752A (en)

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Application Number Priority Date Filing Date Title
CN202211083512.XA CN115424752A (en) 2022-09-06 2022-09-06 Spherical element single conveying device

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Application Number Priority Date Filing Date Title
CN202211083512.XA CN115424752A (en) 2022-09-06 2022-09-06 Spherical element single conveying device

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH105408A (en) * 1996-06-21 1998-01-13 Newgin Kk Safe ball processor of pachinko machine
US6440007B1 (en) * 2000-03-29 2002-08-27 Takeo Imahata Game apparatus having a spherical object drop mechanism
CN102097144A (en) * 2010-11-02 2011-06-15 清华大学 Singularized spherical-element conveying device applied to high-temperature gas cooled reactor
CN102982855A (en) * 2012-12-20 2013-03-20 清华大学 Device for isolating and conveying fuel spheres of sphere bed high temperature reactor
CN206649785U (en) * 2017-03-20 2017-11-17 衡阳师范学院 A kind of movement of falling object experimental provision
CN110534219A (en) * 2019-08-28 2019-12-03 清华大学 Particle suction unit and method
CN113488209A (en) * 2021-06-01 2021-10-08 华能山东石岛湾核电有限公司 Sliding block type ball conveying device and method for pebble bed type high-temperature gas cooled reactor
CN114883019A (en) * 2022-05-23 2022-08-09 中核能源科技有限公司 High-temperature gas cooled reactor fuel loading and unloading system and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH105408A (en) * 1996-06-21 1998-01-13 Newgin Kk Safe ball processor of pachinko machine
US6440007B1 (en) * 2000-03-29 2002-08-27 Takeo Imahata Game apparatus having a spherical object drop mechanism
CN102097144A (en) * 2010-11-02 2011-06-15 清华大学 Singularized spherical-element conveying device applied to high-temperature gas cooled reactor
CN102982855A (en) * 2012-12-20 2013-03-20 清华大学 Device for isolating and conveying fuel spheres of sphere bed high temperature reactor
CN206649785U (en) * 2017-03-20 2017-11-17 衡阳师范学院 A kind of movement of falling object experimental provision
CN110534219A (en) * 2019-08-28 2019-12-03 清华大学 Particle suction unit and method
CN113488209A (en) * 2021-06-01 2021-10-08 华能山东石岛湾核电有限公司 Sliding block type ball conveying device and method for pebble bed type high-temperature gas cooled reactor
CN114883019A (en) * 2022-05-23 2022-08-09 中核能源科技有限公司 High-temperature gas cooled reactor fuel loading and unloading system and method

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