CN106710644A - Voltage stabilizer manhole cover plate locating device of nuclear power unit - Google Patents
Voltage stabilizer manhole cover plate locating device of nuclear power unit Download PDFInfo
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- CN106710644A CN106710644A CN201611064358.6A CN201611064358A CN106710644A CN 106710644 A CN106710644 A CN 106710644A CN 201611064358 A CN201611064358 A CN 201611064358A CN 106710644 A CN106710644 A CN 106710644A
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- hoop
- hoop plate
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C13/00—Pressure vessels; Containment vessels; Containment in general
- G21C13/02—Details
- G21C13/028—Seals, e.g. for pressure vessels or containment vessels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention belongs to the technical field of voltage stabilizers of a nuclear power unit, and particularly relates to a voltage stabilizer manhole cover plate locating device of the nuclear power unit. The invention aims to develop the voltage stabilizer manhole cover plate locating device of the nuclear power unit; the voltage stabilizer manhole cover plate locating device can be used for realizing fine tuning on a position of a manhole cover plate, a bolt hole in the manhole cover plate can be quickly and accurately adjusted to the central position of a bolt bottom hole, and the manhole cover plate of a voltage stabilizer and a sealing gasket are enabled not to be in dislocation, so that good sealing performance is realized. The voltage stabilizer manhole cover plate locating device is characterized by comprising an upper hoop plate assembly and a lower hoop plate assembly, wherein the upper hoop plate assembly and the lower hoop plate assembly are fixedly connected, and are arranged on a manhole base of the voltage stabilizer. The voltage stabilizer manhole cover plate locating device of the nuclear power unit, disclosed by the invention, has the advantages that the structure is simple, safe and reliable, the tool operation is simple, centering work of the manhole cover plate of the voltage stabilizer can be accurately and quickly finished, the working time is shortened by a big margin, and dosage received by a worker under a radiation environment is reduced.
Description
Technical field
The invention belongs to nuclear power generating sets voltage-stablizer technical field, and in particular to a kind of nuclear power generating sets voltage-stablizer cover plate for manhole is determined
Position device.
Background technology
The center line of the voltage-stablizer manhole of two, Fan family mountain, million units has 45 degree of angle with the direction of cover plate lifting, surely
The a diameter of 686mm of depressor cover plate for manhole, thickness is 130mm, and whole cover plate is connected by 16 bolts of M48 × 4 and voltage-stablizer body
Connect, cover plate weight about 370Kg.
Voltage-stablizer people hole site is at a relatively high due to irradiation dose, is not suitable for staff and stops for a long time, particularly voltage stabilizing
The maintenance of device manhole, is required for opening and returning dress cover plate for manhole；Secondly, cover plate central line is at 45 ° with the position of voltage-stablizer body
Angle is installed, cover plate weight weight in itself so that is opened and is returned the work of capping plate and there is certain risk to maintainer；Furthermore,
When voltage-stablizer cover plate for manhole is installed, the centering of cover plate for manhole is an extremely important step, once cover plate for manhole is somewhat wrong
Position, can produce certain interference and dislocation to voltage-stablizer cover plate hold-down bolt and gasket seal, influence its sealing.If can not
It is accurate that voltage-stablizer cover plate is installed, it is understood that there may be the material risk of primary side dielectric leakage.
According to previous experiences, voltage-stablizer cover plate for manhole is installed, during in, the centering of cover plate is carried out using crow bar, this
Plant method accuracy of alignment low, speed is slow, and easy damaged voltage-stablizer bolt bottom outlet screw thread.
From reduce active area working time and equipment security consideration, it is necessary to design it is a set of can ensure lid
The angle of inclination of plate and the special equipment of bolt hole centering.A kind of suitable voltage-stablizer cover plate for manhole positioner is researched and developed and manufactures, can
To greatly reduce the operation difficulty at scene, increase the efficiency of maintenance, it is ensured that the security of field service personnel and equipment, it is to avoid thing
Therefore generation.
The content of the invention
It is an object of the invention to develop a kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioner, voltage-stablizer cover plate for manhole
Positioner can realize the fine setting to cover plate for manhole position, fast and accurately adjust to bolt the bolt hole on cover plate for manhole
The center of bottom outlet, it is ensured that voltage-stablizer cover plate for manhole and gasket seal do not misplace, so as to realize good sealing.
What the present invention was realized in：
A kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioner, including upper hoop board component and lower hoop board component；Upper hoop plate
Component is fixedly connected with lower hoop board component, on the manhole base of voltage-stablizer.
Upper hoop board component as described above includes upper hoop plate upper plate, upper hoop plate bent plate, upper hoop plate lower plate, hex nut, bullet
Spring pad, movable joint screw, locking nut, hex bolts, movable joint screw base, upper hoop plate crossed countersunk head screw and upper hoop plate are strengthened
Muscle；
Upper hoop plate upper plate and upper hoop plate lower plate generally dome-shaped, upper hoop plate bent plate generally semi-circular shape tabular；Upper hoop
The radian of plate upper plate, upper hoop plate bent plate and upper hoop plate lower plate is equal；Upper hoop plate upper plate is located at the top of upper hoop plate lower plate, both it
Between by it is upper hoop plate bent plate be fixedly connected；Upper hoop plate reinforcement is arranged in the end face outside of hoop plate bent plate, has multiple, position
Between upper hoop plate upper plate and upper hoop plate lower plate；Two old holes are had at the two ends of upper hoop plate upper plate dome-shaped and one logical
Hole, the position of through hole is located at outside old hole；Four old holes are set along the axisymmetrical of upper hoop plate upper plate, and two through holes are also along upper hoop
The axisymmetrical of plate upper plate is set；The position of opening of upper hoop plate lower plate is identical with upper hoop plate upper plate；
Movable joint screw base generally rectangular prismatoid, the face where hypotenuse is provided with trapezoidal groove；Movable joint screw base has two
It is individual, the two ends of hoop plate bent plate end face outside are arranged on, between upper hoop plate upper plate and upper hoop plate lower plate；Movable joint screw base is straight
The end face outside of plate bent plate is close to bind round in arm of angle side, and two old holes are respectively provided with the upper and lower end face of right-angle side side, position with
Upper hoop plate upper plate is corresponding with the old hole site of upper hoop plate lower plate respectively, and through hole is provided with hypotenuse side, and position is bound round on plate with upper
Plate is corresponding with the lead to the hole site of upper hoop plate lower plate；Upper hoop plate crossed countersunk head screw is arranged on upper hoop plate upper plate, upper hoop plate lower plate
With the old hole site of movable joint screw base；
The connection end of movable joint screw is located in the trapezoidal groove of movable joint screw base；Hex bolts is sequentially passed through from the bottom to top
The through hole of through hole, the through hole of movable joint screw base, the connection end of movable joint screw and the upper hoop plate upper plate of plate lower plate is bound round, by hexagonal
Nut and spring shim are fixed；Movable joint screw is rotated around hex bolts；Locking nut is sleeved on movable joint screw.
Hoop board component as described above lower include adjusting screw, adjusting screw seat, lower hoop plate upper plate, locking screw nail seat, under
Hoop plate lower plate, lower hoop plate bent plate, lower hoop plate reinforcement, adjusting screw seat reinforcement, lower hoop plate crossed countersunk head screw and cross plate
Head screw；
Lower hoop plate upper plate and lower hoop plate lower plate generally dome-shaped, lower hoop plate bent plate generally semi-circular shape tabular；Lower hoop
The radian of plate upper plate, lower hoop plate bent plate and lower hoop plate lower plate is equal, and binds round plate upper plate, upper hoop plate bent plate and upper hoop plate lower plate with upper
Radian it is equal；Lower hoop plate upper plate is located at the top of lower hoop plate lower plate, the width of the width more than lower hoop plate lower plate of lower hoop plate upper plate
Degree, is fixedly connected by lower hoop plate bent plate between the two；Lower hoop plate reinforcement is arranged in the end face outside of lower hoop plate bent plate, altogether
There is multiple, between lower hoop plate upper plate and lower hoop plate lower plate；It is lower hoop plate upper plate dome-shaped two ends have two it is old
Hole, four old holes are set along the axisymmetrical of lower hoop plate upper plate；In the lower hoop symmetrical two pairs of through holes of plate upper plate axial location；Under
The two ends for binding round plate lower plate dome-shaped have two old holes, and position of opening is corresponding with the old hole site of lower hoop plate upper plate；
The generally square tabular of adjusting screw seat, center is provided with manhole, and through-hole wall is provided with internal thread；Adjust
Section screw base has four, is arranged on four groups of positions of through hole of lower hoop plate upper plate, is bound round on plate with lower by crossed pan head screw
Plate is fixedly connected；Adjusting screw seat both sides are provided with adjusting screw seat reinforcement；Adjusting screw is arranged on adjusting screw seat
In through hole, head is uniformly distributed two through holes；Afterbody is spherical；
The generally square tabular of locking screw nail seat, a side end face is provided with trapezoidal groove, circle is provided with the inside of trapezoidal groove
Cylindricality through hole, between the two insertion；Cylindrical hole is divided into front and rear two sections, diameter and the locking nut of leading portion cylindrical hole
External diameter matches；The diameter of back segment cylindrical hole matches with the external diameter of movable joint screw；In the upper and lower end face of locking screw nail seat
Two old holes are had, the old hole with lower hoop plate upper plate and lower hoop plate lower plate is corresponding；Locking screw nail seat has two, sets
At the two ends of lower hoop plate bent plate end face outside, between lower hoop plate upper plate and lower hoop plate lower plate, the one end with trapezoidal groove
Outwards；Lower hoop plate crossed countersunk head screw is arranged on the old hole site of lower hoop plate upper plate, lower hoop plate lower plate and locking screw nail seat, will lock
Tight screw base is fixed with lower hoop plate upper plate and lower hoop plate lower plate.
The lead to the hole site of lower hoop plate upper plate as described above is along lower hoop plate upper plate 30 degree, 80 degree positional symmetries of axial location
Distribution.
Upper hoop board component as described above and lower hoop board component are made of stainless steel material.
The beneficial effects of the invention are as follows：
The present invention includes upper hoop board component and lower hoop board component.The present invention has simple structure, safe and reliable, tool operation
Simply, the centering work of completion voltage-stablizer cover plate for manhole that can be accurately and fast, significantly shortens this working time, reduces work
The dosage that personnel are received under radiation environment.
Brief description of the drawings
Fig. 1 is a kind of front view of the upper hoop plate of nuclear power generating sets voltage-stablizer cover plate for manhole positioner of the invention；
Fig. 2 is the A-A of Fig. 1 to sectional view；
Fig. 3 is a kind of top view of the upper hoop plate of nuclear power generating sets voltage-stablizer cover plate for manhole positioner of the invention；
Fig. 4 is a kind of front view of the lower hoop plate of nuclear power generating sets voltage-stablizer cover plate for manhole positioner of the invention；
Fig. 5 is a kind of top view of the lower hoop plate of nuclear power generating sets voltage-stablizer cover plate for manhole positioner of the invention；
Fig. 6 is the A direction views of Fig. 5；
Fig. 7 is a kind of scheme of installation of nuclear power generating sets voltage-stablizer cover plate for manhole positioner of the invention.
Wherein：1. plate upper plate is bound round on, 2. on bind round plate bent plate, 3. on bind round plate lower plate, 4. hex nut, 5. spring shim, 6.
Movable joint screw, 7. locking nut, 8. hex bolts, 9. movable joint screw base, 10. on bind round plate crossed countersunk head screw, plate is bound round on 11. and is added
Strong muscle, 12. adjusting screws, 13. adjusting screws seat, 14. times hoop plate upper plates, 15. locking screw nail seats, 16. times hoop plate lower plates, 17.
Lower hoop plate bent plate, 18. times hoop plate reinforcements, 19. adjusting screws seat reinforcement, 20. times hoop plate crossed countersunk head screws, 21. crosses
Pan head screw, 22. suspenders, 23. voltage-stablizer covers plate for manhole bind round board component, 25. times hoop board components, 26. voltage-stablizers on 24..
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
A kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioner, including upper hoop board component 24 and lower hoop board component 25.On
Hoop board component 24 is fixedly connected with lower hoop board component 25, on the manhole base of voltage-stablizer 26.Lower hoop board component 25 is used for
The fine centering to voltage-stablizer cover plate for manhole 23 is realized, upper hoop board component 24 is used for fixed lower hoop board component 25.
As shown in Figure 1, Figure 2 and Figure 3, upper hoop board component 24 includes upper hoop plate upper plate 1, upper hoop plate bent plate 2, upper hoop plate lower plate
3rd, hex nut 4, spring shim 5, movable joint screw 6, locking nut 7, hex bolts 8, movable joint screw base 9, upper hoop plate cross sink
Head screw 10 and upper hoop plate reinforcement 11.
Upper hoop plate upper plate 1 and upper hoop plate lower plate 3 generally dome-shaped, upper hoop plate bent plate 2 generally semi-circular shape tabular.On
Hoop plate upper plate 1, upper hoop plate bent plate 2 are equal with the radian of upper hoop plate lower plate 3.Upper hoop plate upper plate 1 is located at the upper of upper hoop plate lower plate 3
Side, is fixedly connected by upper hoop plate bent plate 2 between the two.Upper hoop plate reinforcement 11 is arranged on the end face outside of hoop plate bent plate 2
On, multiple is had, between upper hoop plate upper plate 1 and upper hoop plate lower plate 3, the structural strength for strengthening upper hoop board component 24.
Two old holes and a through hole are had at the two ends of the upper dome-shaped of hoop plate upper plate 1, the position of through hole is located at outside old hole.Four
Individual old hole is set along the axisymmetrical of upper hoop plate upper plate 1, and two through holes are also set along the axisymmetrical of upper hoop plate upper plate 1.Upper hoop
The position of opening of plate lower plate 3 is identical with upper hoop plate upper plate 1.
The generally rectangular prismatoid of movable joint screw base 9, the face where hypotenuse is provided with trapezoidal groove, for accommodating movable joint screw
6.Movable joint screw base 9 has two, is arranged on the two ends of the end face outside of hoop plate bent plate 2, positioned at upper hoop plate upper plate 1 and upper hoop plate
Between lower plate 3.The end face outside of plate bent plate 2 is close to bind round in the right-angle side side of movable joint screw base 9, in the upper and lower side of right-angle side side
Face is respectively provided with two old holes, and position is corresponding with the old hole site of upper hoop plate upper plate 1 and upper hoop plate lower plate 3 respectively, in hypotenuse one
Side is provided with through hole, and position is corresponding with the lead to the hole site of upper hoop plate upper plate 1 and upper hoop plate lower plate 3.Upper hoop plate crossed countersunk head screw
The 10 old hole sites for being arranged on upper hoop plate upper plate 1, upper hoop plate lower plate 3 and movable joint screw base 9, for by movable joint screw base 9 with
Hoop plate upper plate 1 and upper hoop plate lower plate 3 are fixed.
The connection end of movable joint screw 6 is located in the trapezoidal groove of movable joint screw base 9.Hex bolts 8 is worn successively from the bottom to top
The through hole of through hole, the through hole of movable joint screw base 9, the connection end of movable joint screw 6 and the upper hoop plate upper plate 1 of hoop plate lower plate 3 is crossed,
It is fixed by hex nut 4 and spring shim 5.Movable joint screw 6 can be rotated around hex bolts 8.Locking nut 7 is set with
On movable joint screw 6, for movable joint screw 6 to be fixed with lower hoop board component 25.
As shown in Figure 4, Figure 5 and Figure 6, lower hoop board component 25 includes adjusting screw 12, adjusting screw seat 13, lower hoop plate upper plate
14th, locking screw nail seat 15, lower hoop plate lower plate 16, lower hoop plate bent plate 17, lower hoop plate reinforcement 18, adjusting screw seat reinforcement 19,
Lower hoop plate crossed countersunk head screw 20 and crossed pan head screw 21.
Lower hoop plate upper plate 14 and lower hoop plate lower plate 16 generally dome-shaped, lower hoop plate bent plate 17 generally semi-circular shape plate
Shape.Lower hoop plate upper plate 14, lower hoop plate bent plate 17 are equal with the radian of lower hoop plate lower plate 16, and curved with upper hoop plate upper plate 1, upper hoop plate
Plate 2 is equal with the radian of upper hoop plate lower plate 3.Lower hoop plate upper plate 14 is located at the top of lower hoop plate lower plate 16, lower hoop plate upper plate 14
Width is fixedly connected by lower hoop plate bent plate 17 between the two more than the width of lower hoop plate lower plate 16.Lower hoop plate reinforcement 18 sets
Put in the end face outside of lower hoop plate bent plate 17, have multiple, between lower hoop plate upper plate 14 and lower hoop plate lower plate 16, be used for
Strengthen the structural strength of lower hoop board component 25.Two old holes are had at the two ends of the lower dome-shaped of hoop plate upper plate 14, four old
Hole is set along the axisymmetrical of lower hoop plate upper plate 14.In 14 axial location of lower hoop plate upper plate, 30 degree, 80 degree positional symmetry distributions two
To through hole.The two ends of the lower dome-shaped of hoop plate lower plate 16 have two old holes, position of opening and the lower old hole for binding round plate upper plate 14
Position is corresponding.
Adjusting screw 13 generally square tabulars of seat, center is provided with manhole, and through-hole wall is provided with internal thread,
For installing adjusting screw 12.Adjusting screw seat 13 has four, is arranged on four groups of positions of through hole of lower hoop plate upper plate 14, leads to
Crossed pan head screw 21 is crossed to be fixedly connected with lower hoop plate upper plate 14.13 both sides of adjusting screw seat are provided with adjusting screw seat to strengthen
Muscle 19, the structural strength for strengthening adjusting screw seat 13.Adjusting screw 12 is arranged in the through hole of adjusting screw seat 13, head
Two through holes are uniformly distributed, the motion of adjusting screw 12 is realized for driving lever insertion through hole rotation；Afterbody is spherical, for adjusting
The position of whole voltage-stablizer cover plate for manhole 23.
The generally square tabular of locking screw nail seat 15, a side end face is provided with trapezoidal groove, is provided with the inside of trapezoidal groove
Cylindrical hole, between the two insertion.Cylindrical hole is divided into front and rear two sections, the diameter and locking nut of leading portion cylindrical hole
7 external diameter matches, for accommodating locking nut 7；The diameter of back segment cylindrical hole matches with the external diameter of movable joint screw 6,
For accommodating movable joint screw 6.Have two old holes in the upper and lower end face of locking screw nail seat 15, with lower hoop plate upper plate 14 and
The old hole of lower hoop plate lower plate 16 is corresponding, the fixation for realizing locking screw nail seat 15.Locking screw nail seat 15 has two, sets
At the two ends of the lower end face outside of hoop plate bent plate 17, between lower hoop plate upper plate 14 and lower hoop plate lower plate 16, with trapezoidal groove
One end it is outside.Lower hoop plate crossed countersunk head screw 20 is arranged on lower hoop plate upper plate 14, lower hoop plate lower plate 16 and locking screw nail seat 15
Old hole site, locking screw nail seat 15 is fixed with lower hoop plate upper plate 14 and lower hoop plate lower plate 16.
In the present embodiment, upper hoop board component 24 and lower hoop board component 25 are made of stainless steel material.
Operation principle of the invention is as shown in Figure 7：
It is upper hoop board component 24 and lower hoop board component 25 is staggered relatively so that movable joint screw 6 passes through locking screw nail seat 15
Manhole, then locking nut 7 is arranged on movable joint screw 6, locking nut 7 is tightened, board component 24 and lower hoop are bound round in realization
Board component 25 is fixedly connected.Then by upper hoop board component 24 and the integral installation of board component 25 of lower hoop at the manhole bottom of voltage-stablizer 26
On seat.When 23 times dresses of voltage-stablizer cover plate for manhole, the rough centering of voltage-stablizer cover plate for manhole 23 is first placed on voltage stabilizing with suspender 22
On the manhole base of device 26, then voltage-stablizer cover plate for manhole 23 is adjusted by four adjusting screws 12 on lower hoop board component 24
Position, complete fine centering.Through execute-in-place it was verified that by the lower axis of hoop plate upper plate 14 position of lower hoop board component 25
Put 30 degree, 80 degree of positional symmetries adjusting screws seat 13 and adjusting screw 12 are set, realize the high-precision of voltage-stablizer cover plate for manhole 23
Degree, quick centring, significantly shorten this working time, reduce the dosage that staff is received under radiation environment.
Implementation of the invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned reality
Example is applied, in the ken that those of ordinary skill in the art possess, can also be on the premise of present inventive concept not be departed from
Various changes can be made.The content not being described in detail in description of the invention can use prior art.
Claims (5)
1. a kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioner, it is characterised in that：It include it is upper hoop board component (24) and under
Hoop board component (25)；Upper hoop board component (24) is fixedly connected with lower hoop board component (25), installed in the manhole bottom of voltage-stablizer (26)
On seat.
2. nuclear power generating sets voltage-stablizer cover plate for manhole positioner according to claim 1, it is characterised in that：Described upper hoop
Board component (24) includes upper hoop plate upper plate (1), upper hoop plate bent plate (2), upper hoop plate lower plate (3), hex nut (4), spring shim
(5), movable joint screw (6), locking nut (7), hex bolts (8), movable joint screw base (9), upper hoop plate crossed countersunk head screw (10)
With upper hoop plate reinforcement (11)；
Upper hoop plate upper plate (1) and upper hoop plate lower plate (3) generally dome-shaped, upper hoop plate bent plate (2) generally semi-circular shape tabular；
The radian of upper hoop plate upper plate (1), upper hoop plate bent plate (2) and upper hoop plate lower plate (3) is equal；Upper hoop plate upper plate (1) is positioned at upper hoop plate
The top of lower plate (3), is fixedly connected by upper hoop plate bent plate (2) between the two；Upper hoop plate reinforcement (11) is arranged on hoop plate
In the end face outside of bent plate (2), multiple is had, between upper hoop plate upper plate (1) and upper hoop plate lower plate (3)；On upper hoop plate
The two ends of plate (1) dome-shaped have two old holes and a through hole, and the position of through hole is located at outside old hole；Four old hole edges
The axisymmetrical of upper hoop plate upper plate (1) is set, and two through holes are also set along the axisymmetrical of upper hoop plate upper plate (1)；Under upper hoop plate
The position of opening of plate (3) is identical with upper hoop plate upper plate (1)；
Movable joint screw base (9) generally rectangular prismatoid, the face where hypotenuse is provided with trapezoidal groove；Movable joint screw base (9) has
Two, the two ends of hoop plate bent plate (2) end face outside are arranged on, between upper hoop plate upper plate (1) and upper hoop plate lower plate (3)；
The end face outside of plate bent plate (2) is close to bind round in movable joint screw base (9) right-angle side side, is respectively opened in the upper and lower end face of right-angle side side
There are two old holes, position is corresponding with the old hole site of upper hoop plate upper plate (1) and upper hoop plate lower plate (3) respectively, in hypotenuse side
Through hole is provided with, position is corresponding with the lead to the hole site of upper hoop plate upper plate (1) and upper hoop plate lower plate (3)；Upper hoop plate crossed countersunk head spiral shell
Nail (10) is installed in the old hole site of upper hoop plate upper plate (1), upper hoop plate lower plate (3) and movable joint screw base (9)；
The connection end of movable joint screw (6) is located in the trapezoidal groove of movable joint screw base (9)；Hex bolts (8) is from the bottom to top successively
Through hole, the through hole of movable joint screw base (9), the connection end of movable joint screw (6) and upper hoop plate upper plate through upper hoop plate lower plate (3)
(1) through hole, is fixed by hex nut (4) and spring shim (5)；Movable joint screw (6) turns around hex bolts (8)
It is dynamic；Locking nut (7) is sleeved on movable joint screw (6).
3. nuclear power generating sets voltage-stablizer cover plate for manhole positioner according to claim 2, it is characterised in that：Described lower hoop
Board component (25) includes adjusting screw (12), adjusting screw seat (13), lower hoop plate upper plate (14), locking screw nail seat (15), lower hoop
Plate lower plate (16), lower hoop plate bent plate (17), lower hoop plate reinforcement (18), adjusting screw seat reinforcement (19), lower hoop plate cross sink
Head screw (20) and crossed pan head screw (21)；
Lower hoop plate upper plate (14) and lower hoop plate lower plate (16) generally dome-shaped, lower hoop plate bent plate (17) generally semi-circular shape plate
Shape；It is lower hoop plate upper plate (14), it is lower hoop plate bent plate (17) and it is lower hoop plate lower plate (16) radian it is equal, and with it is upper bind round plate upper plate (1),
The radian of upper hoop plate bent plate (2) and upper hoop plate lower plate (3) is equal；Lower hoop plate upper plate (14) is upper positioned at lower hoop plate lower plate (16)
Side, the width of the width more than lower hoop plate lower plate (16) of lower hoop plate upper plate (14) is solid by lower hoop plate bent plate (17) between the two
Fixed connection；Lower hoop plate reinforcement (18) is arranged in the end face outside of lower hoop plate bent plate (17), has multiple, on lower hoop plate
Between plate (14) and lower hoop plate lower plate (16)；Two old holes, four are had at the two ends of lower hoop plate upper plate (14) dome-shaped
Old hole is set along the axisymmetrical of lower hoop plate upper plate (14)；In the lower hoop symmetrical two pairs of through holes of plate upper plate (14) axial location；
The two ends of lower hoop plate lower plate (16) dome-shaped have two old holes, position of opening and the lower old hole site for binding round plate upper plate (14)
It is corresponding；
Adjusting screw seat (13) generally square tabular, center is provided with manhole, and through-hole wall is provided with internal thread；Adjust
Section screw base (13) has four, four groups of positions of through hole of lower hoop plate upper plate (14) is arranged on, by crossed pan head screw
(21) it is fixedly connected with lower hoop plate upper plate (14)；Adjusting screw seat (13) both sides are provided with adjusting screw seat reinforcement (19)；
In the through hole of adjusting screw seat (13), head is uniformly distributed two through holes to adjusting screw (12)；Afterbody is spherical；
The generally square tabular of locking screw nail seat (15), a side end face is provided with trapezoidal groove, circle is provided with the inside of trapezoidal groove
Cylindricality through hole, between the two insertion；Cylindrical hole is divided into front and rear two sections, the diameter and locking nut of leading portion cylindrical hole
(7) external diameter matches；The diameter of back segment cylindrical hole matches with the external diameter of movable joint screw (6)；In locking screw nail seat
(15) upper and lower end face has two old holes, and the old hole with lower hoop plate upper plate (14) and lower hoop plate lower plate (16) is corresponding；
Locking screw nail seat (15) has two, the two ends of lower hoop plate bent plate (17) end face outside is arranged on, positioned at lower hoop plate upper plate (14)
And lower hoop plate lower plate (16) between, the one end with trapezoidal groove is outside；Lower hoop plate crossed countersunk head screw (20) is installed in lower hoop
The old hole site of plate upper plate (14), lower hoop plate lower plate (16) and locking screw nail seat (15), by locking screw nail seat (15) and lower hoop plate
Upper plate (14) and lower hoop plate lower plate (16) are fixed.
4. nuclear power generating sets voltage-stablizer cover plate for manhole positioner according to claim 3, it is characterised in that：Described lower hoop
The lead to the hole site of plate upper plate (14) is to be distributed along 30 degree, 80 degree positional symmetries of lower hoop plate upper plate (14) axial location.
5. nuclear power generating sets voltage-stablizer cover plate for manhole positioner according to claim 1, it is characterised in that：Described upper hoop
Board component (24) and lower hoop board component (25) are made of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064358.6A CN106710644B (en) | 2016-11-28 | 2016-11-28 | A kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376041A (en) * | 2018-12-28 | 2020-07-07 | 中核核电运行管理有限公司 | Manhole cover plate centering device and evaporator primary side manhole cover plate centering method |
| CN112320559A (en) * | 2020-09-27 | 2021-02-05 | 中核核电运行管理有限公司 | Manhole cover plate hoisting device for voltage stabilizer of nuclear power unit |
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| FR2787544A1 (en) * | 1998-12-21 | 2000-06-23 | Alstom | Manhole cover e.g. for nuclear apparatus confinement chamber incorporates lead glass transparent panel to permit visual observation |
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| CN203653123U (en) * | 2013-12-12 | 2014-06-18 | 核动力运行研究所 | Lifting mechanism used for assembling or disassembling primary side manhole cover plate of steam generator |
| CN204221334U (en) * | 2014-09-25 | 2015-03-25 | 中核核电运行管理有限公司 | A kind of voltage-stablizer manhole cover installation adjusting device |
| CN206340346U (en) * | 2016-11-28 | 2017-07-18 | 中核核电运行管理有限公司 | A kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioner |
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| FR2787544A1 (en) * | 1998-12-21 | 2000-06-23 | Alstom | Manhole cover e.g. for nuclear apparatus confinement chamber incorporates lead glass transparent panel to permit visual observation |
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| CN203504926U (en) * | 2013-08-16 | 2014-03-26 | 中国广核集团有限公司 | Protection device for voltage stabilizer in nuclear power plant |
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| CN204221334U (en) * | 2014-09-25 | 2015-03-25 | 中核核电运行管理有限公司 | A kind of voltage-stablizer manhole cover installation adjusting device |
| CN206340346U (en) * | 2016-11-28 | 2017-07-18 | 中核核电运行管理有限公司 | A kind of nuclear power generating sets voltage-stablizer cover plate for manhole positioner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111376041A (en) * | 2018-12-28 | 2020-07-07 | 中核核电运行管理有限公司 | Manhole cover plate centering device and evaporator primary side manhole cover plate centering method |
| CN112320559A (en) * | 2020-09-27 | 2021-02-05 | 中核核电运行管理有限公司 | Manhole cover plate hoisting device for voltage stabilizer of nuclear power unit |
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| CN106710644B (en) | 2018-11-02 |
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