CN115295180A - Absorption ball shutdown device - Google Patents
Absorption ball shutdown device Download PDFInfo
- Publication number
- CN115295180A CN115295180A CN202210977112.7A CN202210977112A CN115295180A CN 115295180 A CN115295180 A CN 115295180A CN 202210977112 A CN202210977112 A CN 202210977112A CN 115295180 A CN115295180 A CN 115295180A
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- China
- Prior art keywords
- ball
- plate
- pipe
- storage tank
- travel switch
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
- G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
- G21C9/027—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency by fast movement of a solid, e.g. pebbles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the technical field of nuclear reactor safety, in particular to an absorption ball shutdown device which comprises a ball storage tank, a first pipe, a first plate, a second pipe and a lifting component, wherein the ball storage tank is internally provided with a containing cavity, the containing cavity is suitable for storing absorption balls, the first pipe is connected with the ball storage tank, the first pipe is provided with a ball outlet, the ball outlet is communicated with the containing cavity, one end of the second pipe is suitable for extending into the first pipe, one end of the second pipe is provided with a ball inlet, the second pipe can move relative to the first pipe in the height direction of the ball storage tank so that the ball inlet is communicated with or dislocated with the ball outlet, one end of the first plate is connected with one end of the second pipe, which extends out of the first pipe, and the lifting component can be contacted with the first plate so as to lift the second pipe. The absorption ball reactor-stopping device can avoid the blockage and improve the stability and the safety of the operation of the reactor.
Description
Technical Field
The invention relates to the technical field of nuclear reactor safety, in particular to an absorption ball shutdown device.
Background
Nuclear reactors, also known as nuclear reactors or reactors, are devices that can sustain a controlled, self-sustaining nuclear fission reaction to achieve nuclear energy utilization.
There are two main types of shutdown methods for nuclear reactors, one of which is to control the amount of neutrons in the core by the depth of insertion of the driving control rods into the core. One is shutdown by absorption of neutrons by boron carbide containing absorption spheres. The absorption ball reactor-stopping system releases the absorption balls into the reactor core reaction layer through the absorption ball reactor-stopping device, so that the purpose of safe reactor-stopping is realized.
In the related technology, when the absorption ball shutdown system operates, the motor is required to drive the ball screw and the valve rod to move, so that the absorption balls in the ball storage tank fall into the reactor core reflecting layer, and the safe shutdown is realized. This kind of mode of shutting down needs to use transmission structures such as ball, and not only the structure is complicated, and because transmission structure sets up in inclosed cavity, and transmission structure is in the higher operational environment of temperature simultaneously, is not convenient for lubricate, consequently, is dry friction between the transmission structure, appears blocking easily and leads to absorbing the unable safe shutdown of ball shutdown device.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the embodiment of the invention provides an absorption ball reactor-stopping device, which avoids the dead locking and improves the stability and the safety of the operation of a reactor.
The absorption ball shutdown device of the embodiment of the invention comprises: the ball storage tank is internally provided with a containing cavity which is suitable for storing the absorption balls; the first pipe is connected with the ball storage tank and is provided with a ball outlet which is communicated with the accommodating cavity; the ball storage tank comprises a first pipe and a second pipe, wherein one end of the first pipe is suitable for extending into the first pipe, one end of the first pipe is provided with a ball inlet, the second pipe can move relative to the first pipe in the height direction of the ball storage tank so that the ball inlet is communicated with or dislocated with the ball outlet, and one end of the first plate is connected with one end of the first pipe extending out of the second pipe; a lifting member contactable with the first plate to lift the second tube.
The absorption ball reactor-stopping device provided by the embodiment of the invention avoids the blockage and improves the stability and safety of the reactor operation.
In some embodiments, the lifting member includes a first wheel, a second wheel, a driving chain, and a second plate, an outer circumferential surface of the first wheel is in contact with the driving chain, an outer circumferential surface of the second wheel is in contact with the driving chain, the driving chain is provided with the second plate, and the second plate can be in contact with the first plate to lift the second pipe.
In some embodiments, the absorbing ball-stalling device further comprises a holding member adapted to generate a magnetic force, the first plate is a magnetic plate, and a magnetic pole of the holding member is opposite to a magnetic pole of the first plate to contact the holding member with the first plate.
In some embodiments, the holding member includes a first coil and a core, and the first coil is wound around the core.
In some embodiments, the absorption ball reactor further comprises a stopper, and the stopper is sleeved on one end of the second pipe extending out of the first pipe.
In some embodiments, the absorption ball stopping device further includes a third plate, a fourth plate, and a first travel switch, one end of the third plate is connected to the limiting member, one end of the fourth plate is connected to the ball storage tank, the first travel switch is installed at one end of the fourth plate, and when the third plate moves to contact with the first travel switch, the ball inlet is communicated with the ball outlet.
In some embodiments, the absorption ball reactor further comprises a second travel switch, the second travel switch is installed at one end of the fourth plate far away from the ball storage tank,
when the third plate is in contact with the second travel switch, the first plate is in contact with the holding part, and the ball inlet and the ball outlet are staggered.
In some embodiments, the first tube comprises a first section and a second section, the first section having a cross-sectional area across the width of the ball storage tank that is less than the cross-sectional area of the second section across the width of the ball storage tank.
In some embodiments, the number of the ball inlets and the number of the ball outlets are multiple, and the multiple ball outlets correspond to the multiple ball inlets one to one.
In some embodiments, a flange member is further included, one end of the flange member being connected to the housing.
Drawings
FIG. 1 is a schematic diagram of an absorption ball-stop arrangement according to an embodiment of the invention.
Reference numerals are as follows:
a first tube 1, a second tube 2, a first plate 3,
the lifting member 4, the first wheel 401, the second wheel 402, the transmission chain 403, the second plate 404,
the ball storage tank 5, the accommodating cavity 501,
the length of the bracket 6, the first hole 601,
the holding member 7, the first coil 701, the core 702,
the limiting part 8, the third plate 9, the fourth plate 10, the first travel switch 11, the second travel switch 12 and the flange part 13.
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.
As shown in fig. 1, an absorbent ball reactor according to an embodiment of the present invention includes a ball storage tank 5, a first tube 1, a second tube 2, a first plate 3, and a lifting member 4, wherein the ball storage tank 5 has a receiving chamber 501 therein, the receiving chamber 501 is adapted to store an absorbent ball, the first tube 1 is connected to the ball storage tank 5, the first tube 1 has a ball outlet, the ball outlet is communicated with the receiving chamber 501, one end of the second tube 2 is adapted to extend into the first tube 1, one end of the second tube 2 has a ball inlet, the second tube 2 is movable relative to the first tube 1 in a height direction of the ball storage tank 5 so that the ball inlet is communicated with or staggered with the ball outlet, one end of the first plate 3 is connected to an end of the second tube 2 extending out of the first tube 1, and the lifting member 4 can contact with the first plate 3 to lift the second tube 2.
Specifically, as shown in fig. 1, the ball storage tank 5 has a receiving cavity 501 therein to accommodate the absorption balls, and the ball storage tank 5 may have a cylindrical shape, or the ball storage tank 5 may have other shapes as known, for example, a truncated cone shape. The first pipe 1 extends up and down, the second pipe 2 extends up and down, the lower end of the first pipe 1 is of a hollow structure, namely, a ball falling channel, the first pipe 1 is also provided with a ball outlet, the second pipe 2 is provided with a ball inlet, and the ball inlet is communicated with the ball falling channel so that the absorption balls fall into the reactor.
The lower end of the second pipe 2 is suitable for extending into the first pipe 1, and the second pipe 2 can move in the up-down direction to enable the ball inlet and the ball outlet to be communicated or staggered.
The upper end of the second tube 2 is connected with the first plate 3, the lifting part 4 can be connected with the first plate 3 to lift the first plate 3, for example, the lifting part 4 lifts the first plate 3 upwards, and then the first plate 3 drives the second tube 2 upwards to lift so as to keep away from the ball inlet and the ball outlet, when the second tube 2 and the first plate 3 need to move downwards, or when the absorption ball reactor is suddenly powered off, under the condition that the lifting part 4 is powered off or stops working, namely when the lifting part 4 does not provide the upward lifting force for the first plate 3, the second tube 2 and the first plate 3 descend under the action of gravity, and then the ball inlet and the ball outlet are communicated, so that the absorption balls enter a ball falling channel, and then the reactor is stopped.
Optionally, the ball dropping shutdown device further comprises a housing, a ball storage tank 5, a first pipe 1, a second pipe 2 and a first plate 3 are arranged in the housing, and the housing can improve the stability and the safety of the ball dropping shutdown device.
According to the absorption ball stopping device provided by the embodiment of the invention, the lifting part 4 is arranged, the lifting part 4 can be in contact with the first plate 3 to move the first plate 3 upwards, or when the second pipe 2 is required to fall to communicate the ball inlet with the ball outlet, the second pipe 2 and the first plate 3 fall under the action of gravity, so that the ball inlet is communicated with the ball outlet, absorption balls can conveniently enter the ball falling channel, and the reactor is stopped.
In some embodiments, the lifting means 4 comprises a first wheel 401, a second wheel 402, a transmission chain 403 and a second plate 404, the outer circumference of the first wheel 401 is in contact with the transmission chain 403, the outer circumference of the second wheel 402 is in contact with the transmission chain 403, the transmission chain 403 is provided with the second plate 404, and the second plate 404 can be in contact with the first plate 3 to lift the second tube 2.
Specifically, as shown in fig. 1, a first wheel 401 and a second wheel 402 are arranged opposite to each other in the up-down direction, the first wheel 401 rotates to drive a transmission chain 403 to rotate, the transmission chain 403 drives the second wheel 402 to rotate, one end of a second plate 404 is connected to the transmission chain 403, the transmission chain 403 rotates to enable the second plate 404 to contact with the first plate 3 to lift the first plate 3 upwards, and further lift the second pipe 2 upwards to enable a ball inlet and a ball outlet to be staggered, so that the stability and the safety of the absorption ball stopping device are improved.
In some embodiments, the absorption ball-stalling device further comprises a holding member 7, the holding member 7 is adapted to generate a magnetic force, the first plate 3 is a magnetic plate, and the magnetic poles of the holding member 7 are opposite to the magnetic poles of the first plate 3, so as to contact the holding member 7 with the first plate 3.
Specifically, as shown in fig. 1, the absorption ball reactor further includes a support 6, the support 6 has a first hole 601, when the first plate 3 and the second tube 2 are lifted upwards, the first plate 3 at least partially extends out of the support 6 through the first hole 601, the lower end of the retaining member 7 is mounted on the upper end of the support 6, the retaining member 7 is adapted to generate a magnetic force, for example, the retaining member 7 is powered on to generate a magnetic force, when the lifting member 4 lifts the first plate 3 upwards to a certain height, the first plate 3 is lifted by the magnetic force to drive the second tube 2 to ascend, and further the first plate 3 and the retaining member 7 are in contact due to the magnetic force, at this time, the ball inlet and the ball outlet are misaligned, and the absorption ball cannot enter the ball falling passage. When the power failure of the retaining part 7, the magnetic force of the retaining part 7 disappears, and the first plate 3 and the second tube 2 fall due to gravity, so that the ball inlet is communicated with the ball outlet, and then the absorption balls enter the ball falling channel through the ball inlet and the ball outlet, and then enter the nuclear reactor, thereby improving the stability and the safety of the absorption ball shutdown device.
In some embodiments, the holding member 7 includes a first coil 701 and a core 702, and the first coil 701 is wound around the core 702.
Specifically, as shown in fig. 1, the lower end of the iron core 702 is connected to the bracket 6, the iron core 702 is adapted to be wound with the first coil 701, the first coil 701 is adapted to be energized to enable the holding member 7 to generate a magnetic force, and the holding member 7 and the first plate 3 can be contacted due to the magnetic force, so that the stability and the safety of the absorption ball-stopping device are improved.
In some embodiments, the absorbing ball reactor further comprises a limiting member 8, and the limiting member 8 is sleeved on one end of the second pipe 2 extending out of the first pipe 1.
Specifically, as shown in fig. 1, the limiting part 8 is sleeved on the upper end of the second tube 2, that is, the limiting part 8 is located between the first plate 3 and the ball storage tank 5, the second tube 2 can drive the limiting part 8 to move up and down, when the limiting part contacts with the ball storage tank 5, the ball inlet is communicated with the ball outlet, and then the absorption balls can enter the ball falling channel through the ball inlet and the ball outlet, and then enter the nuclear reactor.
In some embodiments, the absorption ball stopping device further comprises a third plate 9, a fourth plate 10 and a first travel switch 11, one end of the third plate 9 is connected with the limiting member 8, one end of the fourth plate 10 is connected with the ball storage tank 5, one end of the fourth plate 10 is provided with the first travel switch 11, and when the third plate 9 moves to contact with the first travel switch 11, the ball inlet is communicated with the ball outlet.
Specifically, as shown in fig. 1, one end of the third plate 9 is connected to the limiting member 8, the fourth plate 10 extends up and down, the first travel switch 11 is disposed at the lower end of the fourth plate 10, the second tube 2 moves downward to drive the limiting member 8 and the third plate 9 to move downward, and when the third plate 9 contacts the first travel switch 11, the ball inlet is communicated with the ball outlet.
Optionally, the absorption ball stopping device further comprises a second travel switch 12, the second travel switch 12 is installed at one end of the fourth plate 10 far away from the ball storage tank 5, namely, the second travel switch 12 is installed at the upper end of the fourth plate 10, when the third plate 9 is contacted with the second travel switch 12, the first plate 3 is contacted with the holding part 7, and the ball inlet and the ball outlet are staggered.
Optionally, the absorbent ball-stopping device further comprises a control part, and the control part is correspondingly connected with the first wheel 401, the holding part 7, the first travel switch 11 and the second travel switch 12. The control part is suitable for controlling the rotation, stop or power failure of the first wheel 401, the control part is connected with the holding part 7 to turn on or off the magnetic force of the holding part 7, the control part is correspondingly connected with the first travel switch 11 and the second travel switch 12, when the first plate 3 is in contact with or separated from the first travel switch 11 and the second travel switch 12, the first travel switch 11 and the second travel switch 12 transmit signals to the control part, the control part can further comprise a display screen to display the states of the first wheel 401, the holding part 7, the first travel switch 11 and the second travel switch 12, the states of the first wheel 401, the holding part 7, the first travel switch 11 and the second travel switch 12 can be known and controlled without entering the shell, the danger of nuclear radiation is reduced, and the stability and safety of the absorption ball reactor are improved.
In some embodiments, the first tube 1 comprises a first section and a second section, the cross-sectional area of the first section over the width of the ball storage tank 5 being smaller than the cross-sectional area of the second section over the width of the ball storage tank 5.
Specifically, the lower extreme of first section links to each other with the upper end of second section, and the cross section of first section on left right direction is less than the cross section of second section on left right direction, is less than the cross section of second section on left right direction through the cross section of first section on left right direction, can reduce the nuclear radiation that passes through the transmission of second pipe 2 when nuclear reactor operation, perhaps, reduces the nuclear radiation material and passes through the loss of second pipe 2, and then improves the stability and the security of absorption ball shutdown device. Alternatively, the first segment may be a solid tube and the second segment may be a hollow tube, the first segment being integrally formed with the second segment.
Optionally, a preset gap is arranged between the first pipe 1 and the second pipe 2, that is, a gap is formed between the first pipe 1 and the second pipe 2, the size of the preset gap is smaller than the diameter of the absorption ball so as to prevent the absorption ball from falling into the preset gap, and the preset gap also reduces the risk of nuclear radiation and nuclear radiation substance diffusion, so that the stability and the safety of the absorption ball reactor are improved.
In some embodiments, the number of the ball inlets and the ball outlets is multiple, and the multiple ball outlets correspond to the multiple ball inlets one by one.
Specifically, be equipped with a plurality of ball outlets on the lower extreme of first pipe 1, the lower extreme of second pipe 2 is equipped with a plurality of goal mouths, a plurality of ball outlets and a plurality of ball inlet one-to-one, a plurality of ball inlets link to each other with the upper end of falling the ball passageway, and then the absorption ball can get into the efficiency of falling the ball passageway in order to improve the absorption ball and get into the ball passageway through a plurality of ball outlets and a plurality of ball inlet, and then improve the stability and the security of absorption ball shutdown device.
In some embodiments, the absorber ball-stalling device further comprises a flange piece 13, and one end of the flange piece 13 is connected with the shell.
Specifically, the upper end of the flange member 13 is detachably connected to the lower end of the ball storage tank 5, further, the upper end of the flange member 13 may be connected to the housing, the lower end of the flange member 13 may be connected to the pressure vessel of the nuclear reactor, and when the absorbent ball reactor needs to be replaced, the flange member 13 is detached from the pressure vessel, thereby replacing the absorbent ball reactor.
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, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting 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 implicitly indicating 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 explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; 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 according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. 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 "under," "beneath," and "under" a second feature may be directly under or obliquely under the second 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," "an example," "a specific example," or "some examples" and the like mean that a specific 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 embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An absorbent ball-stopping device, comprising:
the ball storage tank is internally provided with an accommodating cavity which is suitable for storing the absorption balls;
the first pipe is connected with the ball storage tank and is provided with a ball outlet which is communicated with the accommodating cavity;
the ball storage tank comprises a second pipe and a first plate, wherein one end of the second pipe is suitable for extending into the first pipe, one end of the second pipe is provided with a ball inlet, the second pipe can move relative to the first pipe in the height direction of the ball storage tank so that the ball inlet is communicated with or dislocated with the ball outlet, and one end of the first plate is connected with one end of the second pipe extending out of the first pipe;
a lifting member contactable with the first plate to lift the second tube.
2. The absorbent ball-dropping apparatus as claimed in claim 1, wherein said lifting means comprises a first wheel, a second wheel, a driving chain, and a second plate, an outer circumferential surface of said first wheel being in contact with said driving chain, an outer circumferential surface of said second wheel being in contact with said driving chain, said driving chain being provided with said second plate, said second plate being in contact with said first plate to lift said second pipe.
3. The absorbent ball-stalling device of claim 2, further comprising a holding member, wherein the holding member is adapted to generate a magnetic force, wherein the first plate is a magnetic plate, and wherein a magnetic pole of the holding member is opposite to a magnetic pole of the first plate to contact the holding member with the first plate.
4. The absorbent ball-stop device according to claim 3, wherein the holding member comprises a first coil and a core, the first coil being wound on the core.
5. The absorbent ball reactor apparatus of claim 2, further comprising a retainer disposed about an end of the second tube extending from the first tube.
6. The absorbing ball shutdown device of claim 5, further comprising a third plate, a fourth plate and a first travel switch, wherein one end of the third plate is connected to the limiting member, one end of the fourth plate is connected to the ball storage tank, the first travel switch is installed at one end of the fourth plate, and when the third plate moves to contact with the first travel switch, the ball inlet is communicated with the ball outlet.
7. The absorbent ball-stalling device according to claim 6, further comprising a second travel switch, wherein the second travel switch is installed at one end, away from the ball storage tank, of the fourth plate,
when the third plate is in contact with the second travel switch, the first plate is in contact with the holding part, and the ball inlet and the ball outlet are staggered.
8. An absorbent ball reactor device according to claim 1, wherein the first tube comprises a first section and a second section, the first section having a smaller cross-sectional area over the width of the ball storage tank than the second section.
9. Absorbent ball reactor according to any of claims 1-8, wherein there are a plurality of said ball inlets and said ball outlets, and a plurality of said ball outlets correspond one-to-one to a plurality of said ball inlets.
10. An absorbent ball-stalling device according to any one of claims 1-9, further comprising a flange member, one end of which is connected with the housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210977112.7A CN115295180A (en) | 2022-08-15 | 2022-08-15 | Absorption ball shutdown device |
| PCT/CN2023/112802 WO2024037478A1 (en) | 2022-08-15 | 2023-08-14 | Absorber ball shutdown device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210977112.7A CN115295180A (en) | 2022-08-15 | 2022-08-15 | Absorption ball shutdown device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115295180A true CN115295180A (en) | 2022-11-04 |
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ID=83829632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210977112.7A Pending CN115295180A (en) | 2022-08-15 | 2022-08-15 | Absorption ball shutdown device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115295180A (en) |
| WO (1) | WO2024037478A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024037478A1 (en) * | 2022-08-15 | 2024-02-22 | 华能核能技术研究院有限公司 | Absorber ball shutdown device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0498805A (en) * | 1990-08-16 | 1992-03-31 | Power Reactor & Nuclear Fuel Dev Corp | Electromagnet for nuclear reactor shutdown mechanism |
| CN1447342A (en) * | 2003-04-04 | 2003-10-08 | 清华大学 | Second shutdown system of absorption ball applicable to gas-cooled reactor |
| CN110534211B (en) * | 2019-08-28 | 2021-04-27 | 清华大学 | High-temperature gas cooled reactor absorption ball shutdown device |
| CN113192658A (en) * | 2021-05-28 | 2021-07-30 | 中核能源科技有限公司 | Absorption ball shutdown device |
| CN114842991B (en) * | 2022-04-19 | 2023-05-16 | 华能核能技术研究院有限公司 | Integrated ball falling pipe of charge level indicator of absorption ball shutdown system |
| CN115295180A (en) * | 2022-08-15 | 2022-11-04 | 华能核能技术研究院有限公司 | Absorption ball shutdown device |
-
2022
- 2022-08-15 CN CN202210977112.7A patent/CN115295180A/en active Pending
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2023
- 2023-08-14 WO PCT/CN2023/112802 patent/WO2024037478A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024037478A1 (en) * | 2022-08-15 | 2024-02-22 | 华能核能技术研究院有限公司 | Absorber ball shutdown device |
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| WO2024037478A1 (en) | 2024-02-22 |
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