CN108257688A - Suitable for the cooling device of nuclear power station - Google Patents
Suitable for the cooling device of nuclear power station Download PDFInfo
- Publication number
- CN108257688A CN108257688A CN201711302046.9A CN201711302046A CN108257688A CN 108257688 A CN108257688 A CN 108257688A CN 201711302046 A CN201711302046 A CN 201711302046A CN 108257688 A CN108257688 A CN 108257688A
- Authority
- CN
- China
- Prior art keywords
- nuclear power
- power station
- cooling device
- rotating disk
- rotating
- 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- Withdrawn
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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
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/14—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from headers; from joints in ducts
-
- 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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- 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 cooling device suitable for nuclear power station, including cooling tube, pumping chamber, rotating vane, motor, rotating disk, current velocity controller；Around fuel rod to be cooled in nuclear power station, cooling tube is used to cool down fuel rod the form of cooling tube spirally；Pumping chamber includes first, second opening, and the both ends of cooling tube connect respectively with first, second opening；Rotating vane and one end of the rotary shaft of motor are mutually fixed, and for being rotated around rotary shaft, rotating vane is set in pumping chamber rotating vane；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 rotating speed of rotating vane, so as to control the flow velocity of coolant.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 cooling device suitable for nuclear power station.
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 cooling devices suitable for nuclear power station, can control and be flowed in cooling tube
Coolant flow velocity.
To solve the above problems, technical scheme is as follows：
A kind of cooling device suitable for nuclear power station, the cooling device suitable for nuclear power station include cooling tube, pumping
Chamber, rotating vane, motor, rotating disk, current velocity controller；The form of the cooling tube spirally is around the nuclear power
Fuel rod to be cooled in standing, the cooling tube is for cooling down the fuel rod；The pumping chamber is opened including first
Mouth and the second opening, the both ends of the cooling tube are open respectively with described the first of the pumping chamber and the second opening company
It connects；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 rotary shaft
Rotation, the rotating vane are set in the pumping chamber；The motor is used for accommodating by rotating vane pumping
Coolant in the pumping chamber and the cooling tube；The current velocity controller is used for together with the rotating vane
Apply frictional force in the rotating disk of rotation, to control the rotating speed of the rotating vane, so as to control the stream of the coolant
Speed.
Preferably, the rotating disk include centre bore, the rotary shaft pass through the centre bore and with the rotating disk phase
It is fixed.
Preferably, the current velocity controller includes clip-like component, a pair of of liner, the bearing for supporting the liner
Plate；The current velocity controller is used to keep the rotating disk from the both sides of the rotating disk by a pair of liner, with logical
The frictional force crossed between the rotating disk and the liner controls the rotating speed of the rotating vane.
Preferably, the current velocity controller further includes braced frame, a pair for supporting institute in the clip-like component
The pressing member stated the positioning pin of support plate and be pressed against for passing through the pressure of compressed air by liner in the rotating disk.
Preferably, the clip-like component is supported by the braced frame.
Preferably, the current velocity controller further includes the first sliding pin and the second sliding pin；The clip-like component is used for
It is slided by first sliding pin and second sliding pin relative to the braced frame.
Preferably, the clip-like component includes the first clamp arm and the second clamp arm, first clamp arm and second clamp arm
Extend in a manner of across the rotating disk, the clip-like component, which further includes, connects first clamp arm and second clamp arm
Yoke portion and the holder part for being used to support the clip-like component.
Preferably, two ends of first sliding pin and second sliding pin are connected respectively to the clip-like component
The holder part.
Preferably, first sliding pin and second sliding pin pass through the braced frame.
Preferably, the exposed portion of first sliding pin and second sliding pin is covered by rubber sleeve.
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 schematic diagram of the cooling device suitable for nuclear power station of the present invention.
Fig. 2 is that the position of the cooling tube and fuel rod to be cooled the cooling device suitable for nuclear power station of the present invention is closed
The schematic diagram of system.
Specific embodiment
With reference to the schematic diagram of figure 1 and Fig. 2, Fig. 1 for the cooling device suitable for nuclear power station of the present invention, Fig. 2 is the present invention
The cooling device suitable for nuclear power station cooling tube and fuel rod to be cooled position relationship schematic diagram.
The present invention the cooling device suitable for nuclear power station including cooling tube 101, pumping chamber 102, rotating vane 103,
Motor 104, rotating disk 105, current velocity controller 106.The form of the cooling tube spirally is treated cold in nuclear power station
But fuel rod 201, 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 main body side of support plate to prominent.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 cooling device suitable for nuclear power station, which is characterized in that the cooling device suitable for nuclear power station includes cold
But pipe, pumping chamber, rotating vane, motor, rotating disk, current velocity controller；
The form of the cooling tube spirally is used for around fuel rod to be cooled in the nuclear power station, the cooling tube to institute
Fuel rod is stated to be cooled down；
The pumping chamber includes the first opening and the second opening, the both ends of the cooling tube respectively with the institute of the 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 rotary shaft
Rotation, the rotating vane are set in the pumping chamber；
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.
2. the cooling device according to claim 1 suitable for nuclear power station, which is characterized in that the rotating disk includes center
Hole, the rotary shaft pass through the centre bore and are mutually fixed with the rotating disk.
3. the cooling device according to claim 1 suitable for nuclear power station, which is characterized in that the current velocity controller packet
Include clip-like component, a pair of of liner, the support plate for supporting the liner；
The current velocity controller is used to keep the rotating disk from the both sides of the rotating disk by a pair of liner, with logical
The frictional force crossed between the rotating disk and the liner controls the rotating speed of the rotating vane.
4. the cooling device according to claim 3 suitable for nuclear power station, which is characterized in that the current velocity controller is also
Including braced frame, a pair of positioning pin for being used to support the support plate in the clip-like component and for passing through compression sky
Liner is pressed against the pressing member in the rotating disk by the pressure of gas.
5. the cooling device according to claim 4 suitable for nuclear power station, which is characterized in that the clip-like component is by described
Braced frame supports.
6. the cooling device according to claim 4 suitable for nuclear power station, which is characterized in that the current velocity controller is also
Including the first sliding pin and the second sliding pin；
The clip-like component is used to slide relative to the braced frame by first sliding pin and second sliding pin.
7. the cooling device according to claim 6 suitable for nuclear power station, which is characterized in that the clip-like component includes the
One clamp arm and the second clamp arm, first clamp arm and second clamp arm extend in a manner of across the rotating disk, the folder
Shape component further includes the yoke portion for connecting first clamp arm and second clamp arm and the stent for being used to support the clip-like component
Part.
8. the cooling device according to claim 7 suitable for nuclear power station, which is characterized in that first sliding pin and institute
Two ends for stating the second sliding pin are connected respectively to the holder part of the clip-like component.
9. the cooling device according to claim 6 suitable for nuclear power station, which is characterized in that first sliding pin and institute
The second sliding pin is stated across the braced frame.
10. the cooling device according to claim 9 suitable for nuclear power station, which is characterized in that first sliding pin and
The exposed portion of second sliding pin is covered by rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302046.9A CN108257688A (en) | 2017-12-10 | 2017-12-10 | Suitable for the cooling device of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302046.9A CN108257688A (en) | 2017-12-10 | 2017-12-10 | Suitable for the cooling device of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108257688A true CN108257688A (en) | 2018-07-06 |
Family
ID=62722453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711302046.9A Withdrawn CN108257688A (en) | 2017-12-10 | 2017-12-10 | Suitable for the cooling device of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108257688A (en) |
-
2017
- 2017-12-10 CN CN201711302046.9A patent/CN108257688A/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: 20180706 |
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| WW01 | Invention patent application withdrawn after publication |