CN108231221A - For the equipment cooled down to fuel rod - Google Patents
For the equipment cooled down to fuel rod Download PDFInfo
- Publication number
- CN108231221A CN108231221A CN201711302234.1A CN201711302234A CN108231221A CN 108231221 A CN108231221 A CN 108231221A CN 201711302234 A CN201711302234 A CN 201711302234A CN 108231221 A CN108231221 A CN 108231221A
- Authority
- CN
- China
- Prior art keywords
- liner
- fuel rod
- rotating disk
- cooled down
- positioning pin
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/24—Promoting flow of the coolant
- G21C15/243—Promoting flow of the coolant for liquids
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of equipment for being cooled down to fuel rod, including cooling tube, pumping chamber, rotating vane, motor, rotating disk, current velocity controller；Cooling tube is used to cool down fuel rod；Motor is used for the coolant being placed in by rotating vane pumping in pumping chamber and cooling tube；Current velocity controller in the rotating disk rotated together with rotating vane for applying frictional force, to control the flow velocity of coolant；Current velocity controller includes clip-like component, two liners, two positioning pins, the support plate for supporting liner, the liner clamp that is fixed on by fixing bolt on clip-like component；When liner is close to rotating disk, positioning pin is used to extract out and be axially moveable from liner clamp by the support plate shifted together with liner；When liner and rotating disk sliding contact, positioning pin is for so that liner, which resists rotating disk, promotes the active force that liner moves in a circumferential direction.The present invention can control the flow velocity of the coolant flowed in cooling tube.
Description
Technical field
The present invention relates to nuclear power station cooling technology fields, more particularly to a kind of equipment for being cooled down to fuel rod.
Background technology
Fuel rod in traditional nuclear power station is typically necessary to be cooled down using cooling device.
Traditional cooling device cooled down to fuel rod includes cooling tube, and coolant is equipped in the cooling tube.It should
Coolant is with certain flow velocity in cooling Bottomhole pressure.
When the calorific value of fuel rod reduces, the coolant in cooling tube without keeping higher flow rate again.
Traditional technical solution can not reduce the flow velocity of coolant.
Therefore, it is necessary to a kind of new technical solution is proposed, to solve above-mentioned technical problem.
Invention content
The purpose of the present invention is to provide a kind of equipment for being cooled down to fuel rod, can control in cooling tube
The flow velocity of the coolant of flowing.
To solve the above problems, technical scheme is as follows：
A kind of equipment for being cooled down to fuel rod, the equipment for being used to cool down fuel rod include cooling
Pipe, pumping chamber, rotating vane, motor, rotating disk, current velocity controller；The cooling tube is used for fuel to be cooled
Stick is cooled down；The motor is used to be placed in the pumping chamber and the cooling tube by rotating vane pumping
Coolant；The current velocity controller is used to apply friction in the rotating disk rotated together with the rotating vane
Power, to control the rotating speed of the rotating vane, so as to control the flow velocity of the coolant；The current velocity controller includes clip-like
Component, a pair of of liner, a pair of of positioning pin, for support the liner support plate, the clip-like is fixed on by fixing bolt
Liner clamp on component；When the liner is close to the rotating disk, the positioning pin is used for by being moved together with the liner
The support plate of position is extracted out and is axially moveable from the liner clamp；When the liner and the rotating disk sliding contact
When, the positioning pin is for so that the liner, which resists the rotating disk, promotes the effect that the liner moves in a circumferential direction
Power.
Preferably, the clip-like component has a pair of of adjuster at the both ends of configuration in the longitudinal direction, the adjustment
Device is used to adjust initial position of the liner relative to the rotating disk.
Preferably, the adjuster includes moving forward and backward the liner being supported on the folder relative to the liner clamp
The positioning pin on shape component, for push the liner leave the resetting spring of the rotating disk and for adjusting it is described
The lash adjustment member in the gap between liner and the rotating disk.
Preferably, the resetting spring and the lash adjustment member are contained in the inner circumferential of the positioning pin.
Preferably, the resetting spring is compressed and is inserted into the inner circumferential of the positioning pin, and the resetting spring is used for
The liner is pushed back, so that the liner is separated with the rotating disk.
Preferably, the lash adjustment member is used for the recovery amount of the liner through the active force of the resetting spring
It is adjusted to predetermined amount.
Preferably, the lash adjustment member has the fixed pin being fixed on the liner clamp, with relative to described solid
The handle that the mode that rationed marketing is axially moveable is set and the lantern ring being axially moveable relative to the fixed pin.
Preferably, the positioning pin has plain washer in the inner circumferential near open end.
Preferably, the positioning pin with the movement of the support plate for moving, and is used for the plain cushion
Enclose against and press the stage portion of the lantern ring；The handle is used to be axially moveable.
Preferably, the handle is additionally operable to clamp the periphery of the fixed pin by the active force of the resetting spring.
Compared with the prior art, the present invention can control the flow velocity of the coolant flowed in cooling tube.
Description of the drawings
Fig. 1 is the present invention for the schematic diagram of equipment that is cooled down to fuel rod.
Fig. 2 is the present invention for the cooling tube in the equipment that is cooled down to fuel rod and the position of fuel rod to be cooled
Put the schematic diagram of relationship.
Specific embodiment
With reference to figure 1 and Fig. 2, Fig. 1 be the present invention for the schematic diagram of equipment that is cooled down to fuel rod, Fig. 2 for
Invention for the cooling tube and the schematic diagram of the position relationship of fuel rod to be cooled in the equipment that is cooled down to fuel rod.
The equipment for being used to cool down fuel rod of the present invention includes cooling tube 101, pumping chamber 102, rotating vane
103rd, motor 104, rotating disk 105, current velocity controller 106.The form of the cooling tube spirally is in nuclear power station
Fuel rod 201 to be cooled, the cooling tube are used to cool down the fuel rod.
The pumping chamber includes the first opening and the second opening, the both ends of the cooling tube respectively with the institute of pumping chamber
State the first opening and the second opening connection.
The rotating vane and one end of the rotary shaft of the motor are mutually fixed, and the rotating vane is used for around the rotation
Shaft rotates, and the rotating vane is set in the pumping chamber.The motor is used to pump by the rotating vane
The coolant being placed in the pumping chamber and the cooling tube.The coolant is water.
The rotating disk includes centre bore, and the rotary shaft passes through the centre bore and mutually fixed with the rotating disk.
Since rotating disk and rotating vane are fixed with rotary shaft, rotating disk is integrally rotated with rotating vane.
Current velocity controller in the rotating disk rotated together with rotating vane for applying frictional force, to control the rotation
The rotating speed of rotating vane piece, so as to control the flow velocity of the coolant.
The current velocity controller include braced frame, via the clip-like component of braced frame bearing, liner, for supporting
The support plate of liner, a pair are used to support the positioning pin of support plate in clip-like component and for passing through the pressure of compressed air
By the pressing member of liner pressing on the rotating pan.
Current velocity controller is used to keep rotating disk from the both sides of rotating disk by a pair of of liner, passes through rotating disk and liner
Between frictional force control rotating vane rotating speed.
Clip-like component includes the first clamp arm and the second clamp arm, and the first clamp arm and the second clamp arm are prolonged in a manner of across rotating disk
It stretches, clip-like component further includes the yoke portion of the first clamp arm of connection and the second clamp arm and is used to support the cradle portion of clip-like component support
Point.
The current velocity controller further includes the first sliding pin and the second sliding pin.Clip-like component is used to slide by first
Pin and the second sliding pin are slided relative to braced frame.
First sliding pin and the second sliding pin are disposed through the state of braced frame.First sliding pin and the second sliding pin
Two ends be connected respectively to the holder part of clip-like component.Clip-like component is supported frame support so that the first sliding pin
It is axially relative to move each other with the second sliding pin.The exposed portion of first sliding pin and the second sliding pin is covered by rubber sleeve
Lid.
Clip-like component has four lug bosses protruded towards support plate.Lug boss is arranged on clip-like component, is being supported
Lug boss there are two being set on the clip-like component of two end side of length direction of plate.
Support plate has four contact portions for being contacted with the lug boss of clip-like component.Contact portion is arranged on protrusion
The front end face in portion, so that each lug boss can contact.
When support plate moves backward, lug boss contacts the contact portion of support plate.
Lug boss is opposite with the side of support plate, and is formed between the side of support plate between preset space length
Gap.When the positioning pin of the lower part of support plate is removed and support plate is supported and rotated by top positioning pin, support plate and branch
The side surface contact of board.At this point, lug boss is used to limit rotation of the support plate relative to clip-like component.
The fit tolerance between gap-ratio positioning pin and support plate between lug boss and the side of support plate is big.In protrusion
In the case that portion is abutted with the side of support plate, there are gaps between the diaphragm of pressing member and aftermentioned cylinder main body.
Lug boss and clip-like component integrally casting shaping, alternatively, lug boss is formed separately with clip-like component and lug boss
It is bolted clip-like component.In addition, part or all of the front end of lug boss can be by rubber elastomeric material shape
Into.It in this case, can be with shock absorbing when support plate is retracted and lug boss is contacted with contact portion.
Liner is used to contact with rotating disk in the pressing force of depressed component.Liner has the back of the body fixed to support plate
Plate portion and the friction member against the rotating disk rotated together with rotating vane.Friction member is fixed on the surface of backboard portion.
Liner controls the rotating speed of rotating vane by the frictional force generated by the abutting between friction member and rotating disk.
Support plate has the dovetail groove for being formed and being engaged with the backboard portion of liner along longitudinal direction.Positioned at the length direction of support plate
On both ends be supported on clip-like component by a pair of of positioning pin.
Contact portion is formed as from the laterally projecting of the main body of support plate.The front end of lug boss is used to support with contact portion
It connects, the side of lug boss is used to abut with the main body of support plate.
Clip-like component have configuration both ends in the longitudinal direction a pair of of adjuster and configuration a pair of of adjuster it
Between pressing member.
Adjuster is used to adjust initial position of the liner relative to rotating disk.A pair of of adjuster is consolidated respectively by fixing bolt
It is scheduled on the upper and lower end of clip-like component.
Adjuster include be fixed on clip-like component by fixing bolt liner clamp, relative to liner clamp move forward and backward with
Positioning pin that liner is supported on clip-like component, for liner to be pushed to leave the resetting spring of rotating disk and for adjusting liner
The lash adjustment member in the gap between rotating disk.
Positioning pin is set as cylindrical shape.Positioning pin has the flange part for engaging with support plate.The bottom of positioning pin
It is protruded from liner clamp, and flange part is assembled to the both ends of support plate to support liner.
When liner is close to rotating disk, positioning pin is used to extract out from liner clamp by the support plate shifted together with liner
And it is axially moveable.When liner and rotating disk sliding contact, positioning pin is for so that liner resistance rotating disk promotes liner to exist
The active force moved on circumferencial direction.
Resetting spring and lash adjustment member are contained in the inner circumferential of positioning pin.Inner circumferential of the positioning pin near open end
It is upper that there is plain washer.When being slided in positioning pin, the slipper being externally exposed is covered by rubber boot.
Resetting spring is compressed and is inserted into the inner circumferential of positioning pin.Resetting spring for pushing back liner so that liner with
Rotating disk separates.
Lash adjustment member is used to that the recovery amount of liner to be adjusted to predetermined amount by the active force of resetting spring.Gap tune
Whole component have the fixed pin being fixed on liner clamp, the handle that is set in a manner of being axially moveable relative to fixed pin and
The lantern ring being axially moveable relative to fixed pin.
Positioning pin for being moved with the movement of support plate, and for plain washer against and press the platform of lantern ring
Rank portion, at this point, handle is used to be axially moveable.Handle is additionally operable to grip the outer of pin by the active force of resetting spring
Week.The handle moved along the direction that positioning pin moves will not be returned due to the bias force of resetting spring.
Abrasion in liner is smaller, and the path increment of positioning pin is smaller.Therefore, when positioning pin moves, plain cushion
Circle is not contacted with the stage portion of lantern ring.
In the case where the abrasion of liner is larger, the path increment of positioning pin is larger, when positioning pin moves, plain washer against
Stage portion and press lantern ring.Plain washer is dragged together with lantern ring and moving handle.Positioning pin is returned only to the movement with lantern ring
Measure the position of identical amount.
Pressing member includes the cylinder body, the piston for retreating relative to cylinder body that are formed in clip-like component.Via support plate
Liner is pushed, for piston for being abutted with the back side of clip-like component, and balancing gate pit is formed in clip-like component, pressing member passes through tune
The indoor air pressure of seamless power makes diaphragm deflection, piston is made to be moved forward and backward relative to cylinder body by the deformation of diaphragm.Pressing member leads to
It crosses the piston extracted out from cylinder body and pushes liner on the rotating pan via support plate.
Cylinder body has to guide the cylinder main body of piston back-and-forth motion, diaphragm, plate-shaped member.
Cylinder main body is formed as oval tubular, is surrounded around piston with ring-type.It is provided with and piston in the inner circumferential of cylinder main body
Peripheral surface sliding contact and prevent the dustband of dust.
Plate-shaped member is formed as elliptical shape corresponding with cylinder main body.Plate-shaped member is fixed on cylinder main body by multiple bolts
End face on.The inner surface of plate-shaped member forms the inner wall of balancing gate pit.Plate-shaped member and cylinder main body are integrally formed.
Diaphragm is used for through the indoor pressure of pressure and flexible deformation, so that piston moves.Diaphragm is outermost with being formed in
The peripheral part in week, the bellows section for being formed in the press section of most inner circumferential and being formed continuously between peripheral part and press section.
Peripheral part is clamped and fixed between cylinder main body and plate-shaped member.Peripheral part is used to be sealed balancing gate pit, with
Keep the air-tightness of balancing gate pit.
Bellows section is between the inner peripheral surface of cylinder main body and the peripheral surface of piston.When the pressure of balancing gate pit rises,
Bellows section is used to expand from folded state and be deformed into extended configuration, and when the pressure of balancing gate pit declines, bellows
Part is used for back to folded state.That is, bellows section is used to be deformed by being supplied to the air pressure of balancing gate pit
Folded state or extended configuration.
Press section and piston contact, and the bellows section expansion folded, thus piston is in exporter's upward displacement.When
When press section shifts, piston is pressed and is moved in cylinder body.
Balancing gate pit is limited to the inside of cylinder body by diaphragm and plate-shaped member.Balancing gate pit be used for its volume expansion and
It shrinks and is moved forward and backward.Balancing gate pit is provided with through-hole.Compressed air for making diaphragm deflection passes through through-hole from external pressure source
Input.
Piston is against the rear surface of support plate.Piston is maintained at by diaphragm in cylinder body.Piston has what is contacted with support plate
Press surface and be formed in press surface opposite side and with the back side of membrane contacts.Piston is for passing through the diaphragm that is abutted with the back side
It deforms and retreats in cylinder body.
Pressing member includes piston plate, and piston plate is slidably supported on positioning pin.
Piston plate is arranged in parallel with support plate.Piston plate is moved with piston for shifting and being parallel to support plate together.It is living
Seben is integrally formed with piston, alternatively, piston plate can be formed separately with piston, and piston is fixed to piston plate.
Piston plate has pair of sliding hole, and positioning pin is inserted at two longitudinal ends in the sliding eye.Piston plate is with inserting
Enter the positioning pin engaging into sliding eye, and be arranged along the state in axial sliding of positioning pin.Piston plate is used for by making
The sliding eye at both ends engages the position to limit piston in cylinder body with positioning pin.
When the flow velocity to coolant controls, the compressed air supplied from external pressure source is admitted to pressure via through-hole
Power room, makes diaphragm deflection.Also, the bellows section expansion of diaphragm, press section are used to that piston to be made to slide towards rotating disk.
The press section of diaphragm presses liner on the rotating pan via piston.When being resisted against rotation by the liner that diaphragm presses
On disk and when generating frictional force, the spin down of rotating vane.
The indoor compressed air of pressure is discharged from through-hole, before the rotating speed of control rotating disk, the bellows section of diaphragm
Revert to collapsed shape.
Lash adjustment member is for so that rotating disk and liner keep predetermined space.Therefore, rotating vane can not be flowed
The influence of velocity control device and rotate.
Liner is inserted into the dovetail groove of support plate.Two ends of liner engage respectively with positioning pin, go out branch to prevent on-slip
Board.
When the wear extent of the friction member of liner is greater than or equal to predetermined value, lash adjustment member is for so that support plate
Distance corresponding with the wear extent of friction member is moved towards rotating disk.When needing replacing new liner, lash adjustment member
For support plate to be pushed back to initial position.At this point, lug boss is abutted with contact portion, between existing between diaphragm and plate-shaped member
Gap.
In a state that piston is retracted and clamps diaphragm, piston will not be collided with plate-shaped member.Accordingly it is possible to prevent do not conform to
The power of reason is acted on the mechanical part of current velocity controller, so as to improve safety during more renewal of facing.
Through the above technical solutions, the present invention can control the flow velocity of the coolant flowed in cooling tube.
In conclusion although the present invention is disclosed above with preferred embodiment, above preferred embodiment is not to limit
The system present invention, those of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Decorations, therefore protection scope of the present invention is subject to the range that claim defines.
Claims (10)
1. a kind of equipment for being cooled down to fuel rod, which is characterized in that described to be used to set to what fuel rod was cooled down
It is standby to include cooling tube, pumping chamber, rotating vane, motor, rotating disk, current velocity controller；
The cooling tube is used to cool down fuel rod to be cooled；
The motor is used for the cooling being placed in by rotating vane pumping in the pumping chamber and the cooling tube
Liquid；
The current velocity controller in the rotating disk rotated together with the rotating vane for applying frictional force, with control
The rotating speed of the rotating vane is made, so as to control the flow velocity of the coolant；
The current velocity controller includes clip-like component, a pair of of liner, a pair of of positioning pin, the bearing for supporting the liner
Plate is fixed on the liner clamp on the clip-like component by fixing bolt；
When the liner is close to the rotating disk, the positioning pin is used for the bearing by being shifted together with the liner
Plate is extracted out and is axially moveable from the liner clamp；
When the liner and the rotating disk sliding contact, the positioning pin is for so that the liner resists the rotating disk
The active force that the liner is promoted to move in a circumferential direction.
2. the equipment according to claim 1 for being cooled down to fuel rod, which is characterized in that the clip-like component tool
There is a pair of of adjuster at the both ends of configuration in the longitudinal direction, the adjuster is used to adjust the liner relative to the rotation
The initial position of turntable.
3. the equipment according to claim 2 for being cooled down to fuel rod, which is characterized in that the adjuster includes
Moved forward and backward relative to the liner clamp with the liner is supported on the clip-like component the positioning pin, for pushing
The liner leaves the resetting spring of the rotating disk and for adjusting the gap between the liner and the rotating disk
Lash adjustment member.
4. the equipment according to claim 3 for being cooled down to fuel rod, which is characterized in that the resetting spring and
The lash adjustment member is contained in the inner circumferential of the positioning pin.
5. the equipment according to claim 4 for being cooled down to fuel rod, which is characterized in that the resetting spring quilt
It compresses and is inserted into the inner circumferential of the positioning pin, the resetting spring is for pushing back the liner, so that the liner and institute
Rotating disk is stated to separate.
6. the equipment according to claim 3 for being cooled down to fuel rod, which is characterized in that the gap adjusts structure
Part is used to that the recovery amount of the liner to be adjusted to predetermined amount by the active force of the resetting spring.
7. the equipment according to claim 3 for being cooled down to fuel rod, which is characterized in that the gap adjusts structure
Part has the fixed pin being fixed on the liner clamp, the handle set in a manner of being axially moveable relative to the fixed pin
And the lantern ring being axially moveable relative to the fixed pin.
8. the equipment according to claim 7 for being cooled down to fuel rod, which is characterized in that the positioning pin is being opened
There is plain washer in inner circumferential near mouth end.
9. the equipment according to claim 8 for being cooled down to fuel rod, which is characterized in that the positioning pin is used for
Moved with the movement of the support plate, and for the plain washer against and press the stage portion of the lantern ring；
The handle is used to be axially moveable.
10. the equipment according to claim 7 for being cooled down to fuel rod, which is characterized in that the handle is also used
The periphery of the fixed pin is clamped in the active force by the resetting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302234.1A CN108231221A (en) | 2017-12-10 | 2017-12-10 | For the equipment cooled down to fuel rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302234.1A CN108231221A (en) | 2017-12-10 | 2017-12-10 | For the equipment cooled down to fuel rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108231221A true CN108231221A (en) | 2018-06-29 |
Family
ID=62654019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711302234.1A Withdrawn CN108231221A (en) | 2017-12-10 | 2017-12-10 | For the equipment cooled down to fuel rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108231221A (en) |
-
2017
- 2017-12-10 CN CN201711302234.1A patent/CN108231221A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180629 |
|
| WW01 | Invention patent application withdrawn after publication |