CN110534211A - Temperature gas cooled reactor absorption ball shutdown unit - Google Patents
Temperature gas cooled reactor absorption ball shutdown unit Download PDFInfo
- Publication number
- CN110534211A CN110534211A CN201910804562.4A CN201910804562A CN110534211A CN 110534211 A CN110534211 A CN 110534211A CN 201910804562 A CN201910804562 A CN 201910804562A CN 110534211 A CN110534211 A CN 110534211A
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- China
- Prior art keywords
- ball
- drive rod
- storing tank
- falling
- temperature gas
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Classifications
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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
-
- 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
Abstract
The present invention relates to nuclear reactor engineering and security fields, provide a kind of temperature gas cooled reactor absorption ball shutdown unit, comprising: ball-storing tank, bottom are provided with ball-falling-in port；Support tube, bottom connect the top opening of ball-storing tank；Actuator is fixed on the support tube top；Drive rod passes through inside support tube, and first end connects the output block of actuator, and second end stretches to ball-storing tank bottom, and output block drives drive rod lifting to be opened and closed ball-falling-in port, and actuator rising can drive drive rod to be moved to outside ball-storing tank.The device controls the opening and closing of ball-storing tank bottom ball-falling-in port by drive rod.Wherein, actuator rising can drive drive rod to be moved to outside ball-storing tank, and then drive rod can come out with actuator integral demounting and be used to overhaul, and extend device to the adaptability of harsh environment.Also, the device uses the single bearing surface mounting means of bottom from bottom to top, and entirety is good to thermal expansion curve adaptability.
Description
Technical field
The present invention relates to nuclear reactor engineering and security fields, provide a kind of temperature gas cooled reactor absorption ball shutdown unit.
Background technique
KLAK system is second set of reactivity control system of pebble bed high temperature reactor, and there is falling sphere to assist shutdown
The spare function of ball is transmitted back to strength.
The existing technical solution for absorbing the auxiliary shutdown of ball falling sphere controls ball-storing tank bottom by absorbing ball falling sphere actuator
The opening and closing of falling sphere valve head absorb whether ball falls into reactor core lateral reflection layer falling sphere duct with control.However, due to absorbing
Ball falling sphere actuator is arranged in the ozzle of reactor pressure vessel upper cover extraction, and ball-storing tank is arranged in reactor pressure vessel
In upper cover lid, the drive rod connecting with actuator connects falling sphere valve head in lower part after ball-storing tank, so that being located at storage
The falling sphere valve head and drive rod of Spherical Tank are difficult to carry out disassembly maintenance.
It runs in the conveying loop inside reactor pressure vessel in addition, it is contemplated that absorbing ball particle, needs in design
Consider the replacement for absorbing ball in ball-storing tank, new absorption ball is exported and injected out of ball-storing tank including absorbing ball particle.It is similar
Ground, the material position that ball particle is absorbed in ball-storing tank are judge to absorb ball falling sphere and the important parameter whether normally completed of returning serve, and are being set
Need to consider the maintenance replacement of level-sensing device on meter.High temperature and radioactive environment where ball-storing tank limit and absorb ball level-sensing device
Probe and transmitter need to use it is split type.However, the restricted clearance of reactor pressure vessel upper cover ozzle, limits absorption
The maintenance replacement of ball level-sensing device probe.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
One of purpose of the invention is: providing a kind of temperature gas cooled reactor absorption ball shutdown unit, solves the prior art
Present in ball-storing tank bottom falling sphere valve head and drive rod the problem of being difficult to carry out disassembly maintenance.
In order to realize the purpose, the embodiment of the invention provides a kind of temperature gas cooled reactor absorption ball shutdown units, comprising:
Ball-storing tank, bottom are provided with ball-falling-in port；
Support tube, bottom connect the top opening of the ball-storing tank；
Actuator is fixed on the support tube top；
Drive rod passes through inside the support tube, and first end connects the output block of the actuator, and second end stretches to
The ball-storing tank bottom, the output block drive the drive rod lifting to be opened and closed the ball-falling-in port, and the actuator rises
The drive rod can be driven to be moved to outside the ball-storing tank.
In one embodiment, the drive rod includes cooperating with the ball-falling-in port to be opened and closed the firstth area of the ball-falling-in port
Section, the first section maximum outside diameter be less than its by way of the ball-falling-in port internal diameter.
In one embodiment, the actuator is motor, and the output block of the motor passes sequentially through connection from top to bottom
Axis device, ball screw assembly, and guide rail pole connect the first end.
In one embodiment, the motor is fixed on the support tube top by bearing support.
In one embodiment, the second end is provided with discharge gate, the discharge gate construction are as follows: the drive rod movement
To the first station, the ball-falling-in port and discharge gate conducting；The drive rod moves to second station, and the drive rod is blocked
The ball-falling-in port.
In one embodiment, material flow passage is formed in the drive rod, the material flow passage extends to
Inside the ball-storing tank, and the sprue being connected to the material flow passage, the note are formed on the drive rod surface
Material mouth is located at the inside of the ball-storing tank, and the first barrier component is provided between the sprue and the discharge gate.
In one embodiment, pump orifice is provided on the drive rod, it is logical that the pump orifice is connected to the Flow of Goods and Materials
Road, and the pump orifice is located at the lower section of the sprue, and the second barrier is provided between the pump orifice and the discharge gate
Component.
In one embodiment, the second end is provided with electrode, and the electrode corresponds to the default material position of the ball-storing tank
Setting, and connected between the electrode and the ball-storing tank by conductive component.
In one embodiment, the drive rod forms the limiting section of oriented separate its axis direction protrusion, the limit
Protrusion is between the first end end face and support tube top end face.
In one embodiment, the first end port is provided with air-flow stopper.
In one embodiment, the temperature gas cooled reactor absorption ball shutdown unit further includes hopper, and the hopper is set to
The ball-storing tank bottom, and hopper outlet connection absorbs ball falling sphere duct.
The technical solution of the embodiment of the present invention has the advantage that this kind of temperature gas cooled reactor absorption ball shutdown dress of the invention
It sets, the opening and closing of ball-storing tank bottom ball-falling-in port is controlled by drive rod.Wherein, since actuator rising can drive drive rod to be moved to
Outside ball-storing tank, and then drive rod can come out with actuator integral demounting and be used to overhaul, and extend device and fit to harsh environment
Ying Xing.Also, this kind of temperature gas cooled reactor absorption ball shutdown unit uses the single bearing surface mounting means of bottom from bottom to top, whole
Body is good to thermal expansion curve adaptability.
In the preferred embodiment of the embodiment of the present invention, ball function of injecting, pumping function and bin level measuring probe will be absorbed
Function be integrated on drive rod, be easy to implement absorb ball injection, suction replacement and absorb ball bin level measuring probe maintenance
Replacement.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that one high temperature air cooled reactor of the embodiment of the present invention absorbs ball shutdown unit.
Fig. 2 is the structural schematic diagram that two high temperature air cooled reactor of the embodiment of the present invention absorbs ball shutdown unit
Fig. 3 is the structural schematic diagram that three high temperature air cooled reactor of the embodiment of the present invention absorbs ball shutdown unit
Fig. 4 is the structural schematic diagram that four high temperature air cooled reactor of the embodiment of the present invention absorbs ball shutdown unit
In figure: 1, motor；2, shaft coupling；3, ball screw assembly,；4, guide rail pole；5, bearing support；6, support tube；7, it is driven
Bar；8, ball-storing tank；9, ball is absorbed；10, hopper；701, discharge gate；702, pump orifice；703, the second section；704, sprue；
705, limiting section；706, air-flow stopper.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used to limit the scope of the invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is included at least one embodiment or example of the invention.In the present note, schematic expression of the above terms are necessarily
It is directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any one
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
It is noted that the temperature gas cooled reactor absorption ball shutdown unit in following all embodiments, drive rod 7
With actuator integral demounting, and it is the function of integrating on drive rod 7 not in place of following each embodiment main differences
Together.
Embodiment one
Referring to Figure 1, embodiment according to the present invention one provides a kind of temperature gas cooled reactor absorption ball shutdown unit, including
Ball-storing tank 8, support tube 6, actuator and drive rod 7.Wherein, 8 bottom of ball-storing tank is provided with ball-falling-in port；The connection of 6 bottom of support tube
The top opening of ball-storing tank 8；Actuator is fixed on 6 top of support tube；Drive rod 7 passes through inside support tube 6, and drive rod 7 the
One end connects output block, and 7 second end of drive rod stretches to 8 bottom of ball-storing tank, and output block drives the lifting of drive rod 7 to be opened and closed
Ball-falling-in port, actuator rising can drive drive rod to be moved to outside ball-storing tank.
This kind of temperature gas cooled reactor absorption ball shutdown unit controls the opening and closing of 8 bottom ball-falling-in port of ball-storing tank by drive rod 7.
Wherein, since actuator rising can drive drive rod to be moved to outside ball-storing tank, and then drive rod 7 can be with actuator integral demounting
Out for overhauling, device is extended to the adaptability of harsh environment.Also, this kind of temperature gas cooled reactor absorption ball shutdown unit is adopted
With the single bearing surface mounting means of bottom from bottom to top, entirety is good to thermal expansion curve adaptability.Specifically, support tube 6 is solid
It is scheduled on 8 top of ball-storing tank, actuator bottom is fixed on 6 top of support tube, is not fixed at the top of actuator, is so arranged from bottom to top
Each component, obtained each component are good to thermal expansion curve adaptability.
Wherein, actuator bottom can be bolted on 6 top of support tube.It needs to overhaul drive rod 7
When, it is only necessary to by disassembling bolts, actuator is integrally moved up, drive rod 7 is moved up under the drive of actuator and taken apart.
In Fig. 1, drive rod 7 includes cooperating with ball-falling-in port to be opened and closed the first section of ball-falling-in port, the first section maximum outside diameter
Less than its by way of ball-falling-in port internal diameter.That is, when drive rod 7 is gone up and down along ball-falling-in port, 7 outer surface of drive rod not with
It is interfered between the inner surface of ball-falling-in port, and then drive rod 7 may be implemented and removed with actuator from ball-storing tank 8.
Wherein, actuator can be motor 1, and then the output block namely output shaft of motor 1.
Further, 1 output shaft of motor passes sequentially through shaft coupling 2, ball screw assembly, 3 and guide rail pole 4 from top to bottom and connects
The first end of drive rod 7.Wherein, ball screw assembly, 3 includes nut and lead screw, and the output shaft of motor 1 passes through 2 connecting filament of shaft coupling
Thick stick, nut are located on lead screw and can rotate relative to lead screw, and guide rail pole 4 is fixed with nut.Ball screw assembly, 3 is by the rotation of motor 1
Conversion of motion is moving up and down for nut.That is, lead screw rotation is driven by shaft coupling 2 when the output shaft rotation of motor 1, this
When nut then moved along up and down direction in Fig. 1, and then drive guide rail pole 4 move up and down, so that drive rod be driven to move up and down.
Certainly, it should be noted that actuator can also be electromagnetic driver, hydraulic cylinder, cylinder etc., as long as actuator can
To drive the lifting of drive rod 7 to be opened and closed ball-falling-in port.
In Fig. 1, motor 1 is fixed on 6 top of support tube by bearing support 5.Specifically, motor 1 is bolted on branch
5 top of bolster, bearing support 5 are fixed on 6 top of support tube.In the case of this kind, it is only necessary to, can be by motor 1 by under Bolt dismantling
Lift from bearing support 5, and then drive rod 7 is driven to remove from ball-storing tank 8.
Certainly, bearing support 5 is not necessary structure, such as motor 1 can also be fixed on bearing by any other structure
6 top of pipe or even motor 1 are it is also possible to be directly anchored to 6 top of support tube.
In Fig. 1,7 second end of drive rod is provided with discharge gate 701, discharge gate 701 and ball-falling-in port cooperation, to control storage ball
Whether absorbing the whereabouts of ball 9 in tank 8.Specifically, when actuator drives drive rod 7 to move to the first station, discharge gate 701 and storage
The ball-falling-in port of spherical tank 8 is connected, and absorb ball 9 at this time can be by falling in ball-storing tank 8；When actuator drives drive rod 7 to move to second
When station, the ball-falling-in port of the discharge gate 701 and ball-storing tank 8 is closed, and absorbing ball 9 cannot flow out out of ball-storing tank 8.In other words, it arranges
Material mouth 701 constructs are as follows: drive rod 7 moves to the first station, and ball-falling-in port and discharge gate 701 are connected；Drive rod 7 moves to the second work
Position, drive rod 7 block ball-falling-in port.
In Fig. 1, material flow passage is formed in drive rod 7, material flow passage extends to inside ball-storing tank 8, and
7 surface of drive rod is formed with the sprue 704 being connected to material flow passage, and sprue 704 is located at the inside of ball-storing tank 8.It should
In the case of kind, 9 function of injecting of ball will be absorbed and be integrated on drive rod 7.Further, it is set between sprue 704 and discharge gate 701
It is equipped with the first barrier component, prevents absorption ball 9 from falling between sprue 704 and discharge gate 701.Wherein, the first barrier component
It can be baffles, or barrier block, particle plug or switch valve etc..
First barrier component can be set to 704 lower section of sprue close to sprue 704, and then enter through material stream
The absorption ball 9 of circulation passage will not enter 704 lower section of sprue.
In addition, drive rod 7 forms the limiting section 705 of oriented separate its axis direction protrusion, and retention bead is located in Fig. 1
Between 6 top end face of 7 first end end face of drive rod and support tube.In conjunction with Fig. 1, limiting section 705 is located at the upper section of drive rod 7, with
Just mechanical position limitation locking is provided when actuator powers off.For example, limiting section 705 can be formed at the mechanical seam allowance on drive rod 7.
Certainly, in the case that drive rod 7 is connected with actuator, limiting section 705 can also be formed in addition to that can be formed on drive rod 7
Limit locking is provided on guide rail pole 4, and then by guide rail pole 4.
Drive rod is provided with air-flow stopper 706 at 7 first end port.It is arranged in conjunction with Fig. 1, namely in the upper end of drive rod 7
There is air-flow stopper 706, flows into 7 upper area of drive rod to limit the air-flow of relatively-high temperature.For example, air-flow stopper 706 can be with
It avoids high temperature gas flow from contacting actuator, and then protects actuator.
Further, temperature gas cooled reactor absorption ball shutdown unit further includes hopper 10, and hopper 10 is set to 8 bottom of ball-storing tank
Portion, and the outlet of hopper 10 connection absorbs 9 falling sphere duct of ball.
Ball 9 is absorbed as a result, to enter in hopper 10 by 8 bottom ball-falling-in port of ball-storing tank, absorbs ball 9 through 10 outlet guide of hopper
Enter to absorb 9 falling sphere duct of ball, and then realizes the accumulation for absorbing ball 9 in falling sphere duct.
Embodiment two
It refers to and is repeated no more in one something in common the present embodiment two of Fig. 2 and embodiment, the present embodiment two and embodiment one
The difference is that pump orifice 702 can also be provided on drive rod 7, pump orifice 702 is connected to material flow passage, and takes out
Suction inlet 702 is located at the lower section of sprue 704, and the second barrier component is provided between pump orifice 702 and discharge gate 701.
When needing to aspirate absorption ball 9, since pump orifice 702 is connected to material flow passage, thus only need sprue 704
It blocks, so that it may so that the absorption ball 9 inside ball-storing tank 8 is sucked up in material flow passage, and pass through material flow passage
It can be pumped to outside ball-storing tank 8.
Wherein, the mode for blocking sprue 704 is unrestricted, such as door-plate can be arranged at sprue 704, passes through door
Plate is opened and closed sprue 704.Wherein, door-plate can realize automatic control using automatically controlled mode.Certainly, sprue 704 can also be adopted
It is blocked with the subsequent suction tube referred to, during preventing suction from absorbing ball 9, absorbs ball 9 by sprue 704 and enter storage
In spherical tank 8.
In one of situation, when carrying out suction operation using pump orifice 702, by the first barrier component from material
It is removed in flow channel, suction tube is inserted into material flow passage, the mode and biography which can be connected through a screw thread
The connection of 7 inner wall of lever, and then constitute complete absorption 9 suction channel of ball.It absorbs ball 9 and material stream is pumped by pump orifice 702
After in dynamic channel, since the setting of suction tube can be discharged from sprue 704 to avoid material, and material can be along suction
Pipe is flowed and is sucked up to outside ball-storing tank 8.
Pumping function is integrated on drive rod 7 by the temperature gas cooled reactor absorption ball shutdown unit, can be easy to implement absorption
The suction of ball 9 is replaced.
Wherein, in order to meet the suction for absorbing ball 9, sprue 704 and discharge is not arranged in always in the first barrier component
Between mouth 701, but it can be removed from material flow passage.
In turn, when needing to inject absorption ball 9 by sprue 704, the first barrier component can be temporarily introduced, to avoid
It absorbs ball 9 and enters the first barrier component material flow passage below, make troubles for subsequent connection suction tube.When needs pass through
Pump orifice 702 will absorb ball 9 when be pumped to 8 outside of ball-storing tank, can be by the first barrier component from material flow passage
It removes.
Wherein, when the first barrier component is baffles, barrier block or particle plug: can be by 7 top of drive rod
It connects importing or suspension method using thin bar the first barrier component is temporarily introduced or removed.It is provided at the top of drive rod 7
When the subsequent air-flow stopper 706 referred to, the air-flow stopper 706 at 7 top of openable drive rod is interim in order to the first barrier component
It introduces or removes.
Wherein, when the first barrier component is switch valve: can be incited somebody to action by remote control mode or button control mode
Switch valve is temporarily introduced or is removed.Wherein, switch valve, which temporarily introduces, means that switch valve is closed sprue 704 and discharge gate
701 separate, and prevent absorption ball 9 from dropping into the material flow passage of 704 lower section of sprue.Switch valve, which is removed, to be meaned to switch
Valve is opened so that being connected between sprue 704 and discharge gate 701.Specifically, absorbing ball 9 when needing to inject by sprue 704
When, switch valve is closed；When needing to aspirate absorption ball 9 by pump orifice 702, switch valve is opened.
Embodiment three
It refers to and is repeated no more in one something in common the present embodiment three of Fig. 3 and embodiment, the present embodiment three and embodiment one
The difference is that drive rod 7 includes the second section 703 for electrode to be arranged, the default material position that electrode corresponds to ball-storing tank 8 is set
It sets, and is connected between electrode and ball-storing tank 8 by conductive component.
In Fig. 3, the second section 703 is located inside ball-storing tank 8, and the bottom of corresponding drive rod 7.
Wherein, what default material position referred under normal circumstances is the limit state of required judgement or best under specific operation
Material position.By taking the application of ball-storing tank 8 as an example, what default material position referred to be the corresponding highest material position of falling sphere process, minimum material position or
Person's optimized fuel's level, the corresponding minimum material position of process of either returning serve, highest material position or optimized fuel's level.
Due to being connected between electrode and ball-storing tank 8 by conductive component, and then the material position in ball-storing tank 8 reaches electrode
When place height (corresponding default material position), galvanic circle is formed between electrode and ball-storing tank 8, and then return based on the conduction
The conductive characteristic on road can measure material position and reach height where electrode.This kind of drive rod 7 is integrated with bin level measuring probe function, can
To realize the detection to material position in ball-storing tank 8.Also, the bin level measuring probe function of absorbing ball 9 is integrated into drive rod 7
On, the maintenance replacement for absorbing 9 bin level measuring probe of ball can be easy to implement.
Specifically, with electrode be a pole, ball-storing tank 8 be another pole, the two poles of the earth that external transmitter measures by comparing it
Between resistance value and setting resistance threshold size relation, judge whether material position reaches the corresponding height and position of electrode.Due to
Resistance signal transmission is anti-interference strong, is arranged under conventional chambers environment at the far end convenient for transmitter, overall cost is low, economy
It is good.
Example IV
It refers to and is repeated no more in two something in common the present embodiment four of Fig. 4 and embodiment, the present embodiment four and embodiment two
The difference is that drive rod 7 includes the second section 703 for electrode to be arranged, the default material position that electrode corresponds to ball-storing tank 8 is set
It sets, and is connected between electrode and ball-storing tank 8 by conductive component.
In Fig. 4, the second section 703 is located inside ball-storing tank 8, and the bottom of corresponding drive rod 7.
Wherein, what default material position referred under normal circumstances is the limit state of required judgement or best under specific operation
Material position.By taking the application of ball-storing tank 8 as an example, what default material position referred to be the corresponding highest material position of falling sphere process, minimum material position or
Person's optimized fuel's level, the corresponding minimum material position of process of either returning serve, highest material position or optimized fuel's level.
Due to being connected between electrode and ball-storing tank 8 by conductive component, and then the material position in ball-storing tank 8 reaches electrode
When place height (corresponding default material position), galvanic circle is formed between electrode and ball-storing tank 8, and then return based on the conduction
The conductive characteristic on road can measure material position and reach height where electrode.This kind of drive rod 7 is integrated with bin level measuring probe function, can
To realize the detection to material position in ball-storing tank 8.Also, the bin level measuring probe function of absorbing ball 9 is integrated into drive rod 7
On, the maintenance replacement for absorbing 9 bin level measuring probe of ball can be easy to implement.
Specifically, with electrode be a pole, ball-storing tank 8 be another pole, the two poles of the earth that external transmitter measures by comparing it
Between resistance value and setting resistance threshold size relation, judge whether material position reaches the corresponding height and position of electrode.Due to
Resistance signal transmission is anti-interference strong, is arranged under conventional chambers environment at the far end convenient for transmitter, overall cost is low, economy
It is good.
The above embodiments are only used to illustrate the present invention, rather than limitation of the present invention.Although referring to embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, to technical solution of the present invention carry out it is various combination,
Modification or equivalent replacement should all cover and want in right of the invention without departure from the spirit and scope of technical solution of the present invention
It asks in range.
Claims (11)
1. a kind of temperature gas cooled reactor absorption ball shutdown unit characterized by comprising
Ball-storing tank, bottom are provided with ball-falling-in port；
Support tube, bottom connect the top opening of the ball-storing tank；
Actuator is fixed on the support tube top；
Drive rod passes through inside the support tube, and first end connects the output block of the actuator, and second end stretches to described
Ball-storing tank bottom, the output block drive the drive rod lifting to be opened and closed the ball-falling-in port, and the actuator rising can band
The drive rod is moved to be moved to outside the ball-storing tank.
2. temperature gas cooled reactor absorption ball shutdown unit according to claim 1, which is characterized in that the drive rod include with
The ball-falling-in port cooperates to be opened and closed the first section of the ball-falling-in port, and the first section maximum outside diameter is less than it described in
The internal diameter of ball-falling-in port.
3. temperature gas cooled reactor absorption ball shutdown unit according to claim 1, which is characterized in that the actuator is electricity
Machine, the output block of the motor passes sequentially through shaft coupling from top to bottom, ball screw assembly, connects the first end with guide rail pole.
4. temperature gas cooled reactor absorption ball shutdown unit according to claim 3, which is characterized in that the motor passes through bearing
Frame is fixed on the support tube top.
5. temperature gas cooled reactor absorption ball shutdown unit according to claim 1, which is characterized in that the second end is provided with
Discharge gate, the discharge gate construction are as follows: the drive rod moves to the first station, the ball-falling-in port and discharge gate conducting；
The drive rod moves to second station, and the drive rod blocks the ball-falling-in port.
6. temperature gas cooled reactor absorption ball shutdown unit according to claim 5, which is characterized in that formed in the drive rod
There is material flow passage, the material flow passage extends to inside the ball-storing tank, and is formed on the drive rod surface
The sprue being connected to the material flow passage, the sprue are located at the inside of the ball-storing tank, the sprue and institute
It states and is provided with the first barrier component between discharge gate.
7. temperature gas cooled reactor absorption ball shutdown unit according to claim 6, which is characterized in that be arranged on the drive rod
There is pump orifice, the pump orifice is connected to the material flow passage, and the pump orifice is located at the lower section of the sprue, described
The second barrier component is provided between pump orifice and the discharge gate.
8. temperature gas cooled reactor absorption ball shutdown unit as claimed in any of claims 1 to 7, which is characterized in that institute
It states second end and is provided with electrode, the electrode corresponds to the default material position setting of the ball-storing tank, and the electrode and the storage ball
It is connected between tank by conductive component.
9. temperature gas cooled reactor absorption ball shutdown unit as claimed in any of claims 1 to 7, which is characterized in that institute
The limiting section that drive rod forms oriented separate its axis direction protrusion is stated, the retention bead is located at the first end end face and institute
It states between the end face of support tube top.
10. temperature gas cooled reactor absorption ball shutdown unit as claimed in any of claims 1 to 7, which is characterized in that institute
It states first end port and is provided with air-flow stopper.
11. temperature gas cooled reactor absorption ball shutdown unit as claimed in any of claims 1 to 7, which is characterized in that institute
Stating temperature gas cooled reactor absorption ball shutdown unit further includes hopper, and the hopper is set to the ball-storing tank bottom, and the hopper
Outlet connection absorbs ball falling sphere duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804562.4A CN110534211B (en) | 2019-08-28 | 2019-08-28 | High-temperature gas cooled reactor absorption ball shutdown device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804562.4A CN110534211B (en) | 2019-08-28 | 2019-08-28 | High-temperature gas cooled reactor absorption ball shutdown device |
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| CN110534211A true CN110534211A (en) | 2019-12-03 |
| CN110534211B CN110534211B (en) | 2021-04-27 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114005560A (en) * | 2021-10-22 | 2022-02-01 | 华能核能技术研究院有限公司 | High-temperature gas cooled reactor absorption ball falling limiting device and ball bed type high-temperature gas cooled reactor |
| CN114842991A (en) * | 2022-04-19 | 2022-08-02 | 华能核能技术研究院有限公司 | Material level meter integrated ball falling pipe of absorption ball shutdown system |
| 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 |
| 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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114005560A (en) * | 2021-10-22 | 2022-02-01 | 华能核能技术研究院有限公司 | High-temperature gas cooled reactor absorption ball falling limiting device and ball bed type high-temperature gas cooled reactor |
| CN114005560B (en) * | 2021-10-22 | 2023-07-04 | 华能核能技术研究院有限公司 | Ball stop device falls in high temperature gas cooled reactor absorption ball and ball bed formula high temperature gas cooled reactor |
| CN114842991A (en) * | 2022-04-19 | 2022-08-02 | 华能核能技术研究院有限公司 | Material level meter integrated ball falling pipe of absorption ball shutdown system |
| 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 |
| 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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