CN102182834B - Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant - Google Patents
Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant Download PDFInfo
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- CN102182834B CN102182834B CN2011101159350A CN201110115935A CN102182834B CN 102182834 B CN102182834 B CN 102182834B CN 2011101159350 A CN2011101159350 A CN 2011101159350A CN 201110115935 A CN201110115935 A CN 201110115935A CN 102182834 B CN102182834 B CN 102182834B
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- 238000009423 ventilation Methods 0.000 title claims abstract description 42
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 8
- 230000004907 flux Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 19
- 239000000446 fuel Substances 0.000 description 17
- 238000001816 cooling Methods 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 210000003371 toe Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a ventilation control single-blade butterfly valve for a high temperature reactor nuclear power plant, comprising a concrete floor slab (1), a valve disc (5), a valve shaft (23), a valve shaft sleeve (4), a valve shaft controller (33) and a valve shaft operating rod (2); the valve shaft controller (33) is positioned at one side of the concrete floor slab (1); the valve shaft controller (33) controls the valve shaft operating rod (2) to rotate; the valve shaft operating rod (2) is connected with the valve shaft (23) by a shaft coupling after penetrating through the concrete floor slab (1); the outer surface of the valve shaft (23) is sleeved with the valve shaft sleeve (4); and the valve shaft sleeve (4) is fixed on the central axis of the valve disc (5). The valve shaft (23) can be controlled remotely by adjusting the valve shaft controller (33), and the opening degree of the ventilation control single-blade butterfly valve for the high temperature reactor nuclear power plant can be flexibly controlled so that the ventilation state and the flux of a storage silo are controlled and the radiation protection safety of operators in the operation process is ensured.
Description
Technical field
The present invention relates to a kind of high temperature nuclear reactor nuclear power station Ventilation Control field, the single leaf butterfly valve of particularly a kind of high temperature nuclear reactor nuclear power station Ventilation Control.
Background technique
The high temperature nuclear reactor nuclear power station be acknowledged as have the 4th generation the nuclear power major character nuclear power station; Have inherently safe, prevent nuclear proliferation, can produce advantages such as high-temperature technology heat; China is when greatly developing pressurized-water reactor nuclear power plant, also at develop actively high temperature nuclear reactor nuclear power station.What pebble bed high temperature reactor adopted is spheric fuel element, and disperse has coated fuel particle in the spheric fuel element.The about 1mm of the diameter of coated fuel particle.Spheric fuel element is that the fuel particle of some and matrix graphite are fully mixed, and is pressed into the graphite spheroid of diameter 50mm, and then the act as a fuel shell of element of the pure graphite of parcel compacting one deck externally, and the fuel element external diameter that suppresses is 60mm.
From the spherical spentnuclear fuel that the pebble bed high temperature reactor reactor core is discharged, need pack into is fit to put into the irradiated fuel store vertical shaft then and deposit in the spent fuel storage tank of spherical spent fuel element storage, and the location mode of spent fuel storage tank is a dry vertical shaft storage.Because spentnuclear fuel is also producing waste heat; Need ventilate to take away waste heat to the storage vertical shaft of depositing spent fuel storage tank, cooling spent fuel storage tank, the afterheat heat output of spent fuel storage tank be decay gradually in time; Spent fuel storage tank quantity and afterheat heat output in each storage vertical shaft are all inequality; For effectively cooling off spent fuel storage tank, need control the vent flow of each storage vertical shaft, single leaf butterfly valve of Ventilation Control is installed at the storage vertical shaft top.When operation sheet leaf butterfly valve, also there is the problem of radiation of spent fuel protection safety simultaneously.
Summary of the invention
The technical problem that (one) will solve
Single leaf butterfly valve of a kind of high temperature nuclear reactor nuclear power station Ventilation Control that the technical problem that the present invention will solve provides; Can control ventilation state and flow in the high temperature nuclear reactor Nuclear Power Station's Exhausted Fuels storage vertical shaft flexibly; Guarantee the ventilation cooling of spent fuel storage tank in the irradiated fuel store vertical shaft; And in the operating process of single leaf butterfly valve, can guarantee the radiation shielding safety of operating process.
(2) technological scheme
In order to solve the problems of the technologies described above, the present invention provides a kind of high temperature nuclear reactor nuclear power station Ventilation Control single leaf butterfly valve, comprising: concrete floor slab, valve disc, valve shaft, valve shaft axle sleeve, valve shaft controller and valve shaft operating stem;
Said valve shaft controller is positioned at a side of said concrete floor slab, and said valve shaft controller is controlled said valve shaft operating stem and rotated; Said valve shaft operating stem passes said concrete floor slab and connects said valve shaft through coupling; The said valve shaft axle sleeve of said valve shaft outer surface socket, said valve shaft axle sleeve is fixed on the medial axis of said valve disc.
Further; Said valve shaft controller comprises operating grip, operating stem head, clamping bolt, operating grip fixed tray and is arranged at the locating slot on the operating grip fixed tray; Said operating stem head is positioned at the top of said valve shaft operating stem, and an end of said operating grip has the hole that cooperates with said operating stem head, said operating stem head be shaped as square or rhombus; Said operating stem head inserts in the said hole, and the other end of said operating grip is fixed in the said locating slot with clamping bolt.
Further, said valve shaft controller also comprises dial, and the end that said operating grip is installed the clamping bolt end also comprises positioning pointer, is used to indicate the aperture of said valve disc.
Further; Said valve shaft controller also comprises the fixed tray base plate; Said operating grip fixed tray is fixed on the fixed tray base plate, also is fixed with axle sleeve on the said fixed tray base plate, and said axle sleeve is socketed on the said valve shaft operating stem outside; The upper end of said axle sleeve is provided with thrust bearing one, and at least one seal ring is set on the said axle sleeve.
Further, said valve disc is provided with at least one stiffening rib.
Further, said coupling is an Oldham's coupling.
Further, said concrete floor slab is provided with the pre-buried tube of floor operating stem, and said valve shaft controller is installed in the pre-buried tube of said floor operating stem.
Further; Said valve disc is externally connected with the butterfly valve shell; The roof anchorage of said butterfly valve shell has bearing outside one; The upper end of said valve shaft is fixed in the said bearing outside one through rotary bearing one, the said bearing outside one outer bearing (ball) cover one, the said rotary bearing one of said bearing (ball) cover one axial restraint of also being connected with.
Further; The bottom of said butterfly valve shell is fixed with bearing outside two; The lower end of said valve shaft is fixed in the said bearing outside two through rotary bearing two, the said bearing outside two outer bearing (ball) covers two, said bearing (ball) cover two axial restraint rotary bearings two of also being connected with.
Further, also be connected with thrust bearing two between end, the lower end rotary bearing two of said valve shaft and the bearing (ball) cover two.
(3) beneficial effect
The single leaf butterfly valve of the high temperature nuclear reactor nuclear power station Ventilation Control that technique scheme proposes is through being provided with valve shaft operating stem and valve shaft controller to realize the telecontrol valve shaft; Further control the aperture of the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control, can guarantee operator's radiation shielding safety.
Description of drawings
Fig. 1: the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control front elevation;
Fig. 2: the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control left view;
Fig. 3: the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control plan view;
Fig. 4: the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control I partial enlarged drawing;
Fig. 5: the local A of the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control I is to view;
Fig. 6: the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control II partial enlarged drawing;
Fig. 7: the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control III partial enlarged drawing;
Wherein, 1: concrete floor slab; 2: the valve shaft operating stem; 3: the linkage section shell; 4: the valve shaft axle sleeve; 5: valve disc; 6: stiffening rib; 7: storage vertical shaft; 8: the butterfly valve shell; 9: the pre-buried tube of floor operating stem; 10: the operating grip fixed tray; 11: clamping bolt; 12: operating grip; 13: the operating stem square toes; 14: thrust bearing one; 15: the fixed tray base plate; 16: seal ring; 17: axle sleeve; 18: positioning pointer; 19: dial; 20: locating slot; 21: the Oldham's coupling upper end; 22: the Oldham's coupling lower end; 23: valve shaft; 24: bearing (ball) cover one; 25: bolt; 26: bearing outside one; 27: rotary bearing one; 28: bearing outside two; 29: rotary bearing two; 30: bolt; 31: thrust bearing two; 32: bearing (ball) cover two; 33: the valve shaft controller.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
In conjunction with shown in Fig. 1 to 3, the single leaf butterfly valve of a kind of high temperature nuclear reactor nuclear power station Ventilation Control comprises: concrete floor slab 1, valve disc 5, valve shaft 23, valve shaft axle sleeve 4, valve shaft controller 33 and valve shaft operating stem 2 in the embodiment of the invention; Valve shaft controller 33 is positioned at a side of concrete floor slab 1, and valve shaft controller 33 control valve shaft operating stem 2 rotate; Valve shaft operating stem 2 passes concrete floor slab 1 and connects valve shaft 23 through coupling; Valve shaft 23 outer surface socket valve shaft axle sleeves 4, valve shaft axle sleeve 4 is fixed on the medial axis of valve disc 5.The present invention further controls the aperture of the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control through valve shaft operating stem 2 and valve shaft controller 33 being set to realize telecontrol valve shaft 23, can guarantee operator's radiation shielding safety.
Concrete floor slab 1 is the shielding floor at irradiated fuel store vertical shaft top, can effectively shield the radioactivity of spent fuel storage tank in the storage vertical shaft.Concrete floor slab 1 is provided with the pre-buried tube 9 of floor operating stem, and valve shaft controller 33 is installed in the pre-buried tube 9 of floor operating stem.Valve shaft operating stem 2 is used to operate the aperture of the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control; Valve shaft operating stem 2 is inserted in the pre-buried tube 9 of floor operating stem; The pre-buried tube 9 of floor operating stem is positioned at a side that is offset to storage vertical shaft 7; Be the tops of the pre-buried tube of floor operating stem 9 malpositions to storage vertical shaft 7, as far as possible away from, can greatly reduce the radiological effect of spent fuel storage tank.Make operating position I place by effectively shielding, thereby guarantee the radiation shielding safety of operator in operating process.
In conjunction with Fig. 4 and Fig. 5, be the enlarged view and the plan view of valve shaft controller 33 parts.As shown in Figure 4, valve shaft controller 33 comprises operating grip 12, operating stem head 13, clamping bolt 11, operating grip fixed tray 10 and is arranged at the locating slot 20 on the operating grip fixed tray 10.Operating stem head 13 is positioned at the top of valve shaft operating stem 2, and the shape of operating stem head 13 can be polygonals such as square, rhombus.Operating stem head 13 is square in the present embodiment, and an end of operating grip 12 has the hole that cooperates with operating stem head 13, and promptly square hole inserts in the operating stem head 13, thereby it is fixing to valve shaft operating stem 2 to be convenient to that operating stem head 13 is fixed realization.The other end of operating grip 12 can adopt modes such as opening the hole to be fixed in the locating slot 20 with clamping bolt 11.Through clamping bolt 11, guarantee valve disc can secure fixation at desired location, can not be subjected to displacement.When rotating operation bar head 13, need use spanner according to the shape customization of operating stem head 13.Like the operating stem head is triangle, then on the spanner of customization the triangle endoporus is arranged, and size is complementary with the size of operating stem head 13.Have only the spanner of customization just can operate, can avoid amateur operator its misoperation to it.In the present embodiment operating stem head 13 be shaped as squarely, the spanner of customization needs square opening, the size coupling of size and operating stem head 13.
As shown in Figure 4, valve shaft controller 33 also comprises dial 19, and the end that operating grip is installed the clamping bolt end also comprises positioning pointer 18, and positioning pointer 18 is pointed to dial 19, is used to indicate the aperture of valve disc 5.Through adopting dial 19 and being decided to be pointer 18, easy-to-operat the person operate, and makes flexible operation, and the operation degree of accuracy is high.
As shown in Figure 3, valve shaft controller 33 also comprises fixed tray base plate 15, and operating grip fixed tray 10 is fixed on the fixed tray base plate 15; Fixed tray base plate 15 then is fixed on the pre-buried tube 9 of floor operating stem; Also be fixed with axle sleeve 17 on the fixed tray base plate 15, axle sleeve 17 is socketed on valve shaft operating stem 2 outsides, and the upper end of axle sleeve 17 is provided with thrust bearing 1; Be used for valve shaft operating stem 2 component axials such as grade are fixed, bear the gravity of valve shaft operating stem 2 parts such as grade.At least one seal ring 16 is set on the axle sleeve 17, guarantees of the sealing of irradiated fuel store vertical shaft, in the present embodiment, on axle sleeve 17, be provided with two seals circle 16, improve sealing effect at tapping.
As shown in Figure 6, valve shaft operating stem 2 is connected with the top of valve shaft 23 through coupling, selects Oldham's coupling in the present embodiment for use.Oldham's coupling upper end 21 is fixed on the bottom of valve shaft operating stem 2,22 tops that are fixed on valve shaft 23, Oldham's coupling lower end.Adopt the Oldham's coupling flexible operation, and direction skew that can the correct operation process, mechanism can not blocked, guarantee that valve disc puts in place accurately.Also can select coupling, as selecting according to factors such as bearing capacity, load change according to the demand of reality.
As shown in Figure 7, the bottom of butterfly valve shell 8 is fixed with bearing outside 2 28, and the lower end of valve shaft 23 is fixed in the bearing outside 2 28 through rotary bearing 2 29.Also be connected with bearing (ball) cover 2 32 outside the bearing outside 2 28, bearing (ball) cover 2 32 is fixed on the bearing outside 2 28 through bolt 30, bearing (ball) cover 2 32 axial restraint rotary bearings 2 29.Also be connected with thrust bearing 2 31 between end, the lower end rotary bearing 2 29 of valve shaft 23 and the bearing (ball) cover 2 32, be used to bear the gravity of parts such as valve shaft axle sleeve 4 and valve shaft 23.Said bearing (ball) cover 2 32 is also realized axial restraint to thrust bearing 2 31.
The single leaf butterfly valve of the high temperature nuclear reactor nuclear power station Ventilation Control that the present invention proposes, operating process is following:
1. operation original state:
Installation and Debugging are good for the single leaf butterfly valve of Ventilation Control, and valve disc 5 is in the closed position, and promptly valve disc 5 is on the position perpendicular to butterfly valve shell 8, indication place of closing that the positioning pointer 18 on the operating grip 12 refers in dial as shown in Figure 5 19 left sides.
2. the valve disc of single leaf butterfly valve is adjusted to specified position:
Unclamp clamping bolt 11, the spanner that customizes is enclosed within on the operating stem head 13, in the present embodiment for having the spanner of interior square opening.Manual rotary spanner, the constantly adjustment with the rotation of spanner of the sensing position of positioning pointer 18 until pointing to desired location, is fastened to clamping bolt 11 in the locating slot 20 on the operating grip fixed tray 10 then on the operating grip 12.
3. the valve disc of single leaf butterfly valve is adjusted to closed position:
Unclamp clamping bolt 11, the spanner that customizes is enclosed within on the operating stem head 13, in the present embodiment for having the spanner of interior square opening.Manual rotary spanner; Positioning pointer 18 sensing positions on the operating grip 12 are constantly adjustment with the rotation of spanner; Point to the closed position in dial 19 left sides as shown in Figure 5 until positioning pointer 18; Then clamping bolt 11 is fastened in the locating slot 20 on the operating grip fixed tray 10, single leaf butterfly valve is returned to original state.
The single leaf butterfly valve of high-temperature nuclear power station Ventilation Control provided by the invention; Can be used for the Ventilation Control in the pebble bed high temperature reactor irradiated fuel store vertical shaft 7; Through the aperture control of this list leaf butterfly valve, can control ventilation state and flow in the high temperature nuclear reactor Nuclear Power Station's Exhausted Fuels storage vertical shaft 7 flexibly, guarantee the ventilation cooling of spent fuel storage tank in the irradiated fuel store vertical shaft 7; In the operating process of single leaf butterfly valve, can guarantee the radiation shielding safety of operating process; The aperture of telecontrol butterfly valve can be realized through valve shaft operating stem 2, operator's radiation shielding safety can be guaranteed; Through clamping bolt 11, guarantee valve disc can secure fixation at desired location, can not be shifted; Through adopting dial 19 and positioning pointer 18, flexible to operation, and the degree of accuracy of operation is high; Adopt Oldham's coupling to connect valve shaft operating stem 2 and valve shaft 23, flexible operation can be corrected the direction skew of operating process, and mechanism can not blocked, and guarantees that valve disc puts in place accurately; Seal ring 16 through being provided with at a plurality of key positions can effectively guarantee the sealing of storage vertical shaft position of opening.The single leaf butterfly valve of this high temperature nuclear reactor nuclear power station Ventilation Control can be used to control the ventilation state of other similar operating modes through suitably revising, and also can be applicable to the association area of general industry.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and replacement, these improvement and replacement also should be regarded as protection scope of the present invention.
Claims (10)
1. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control is characterized in that, comprising: concrete floor slab (1), valve disc (5), valve shaft (23), valve shaft axle sleeve (4), valve shaft controller (33) and valve shaft operating stem (2);
Said valve shaft controller (33) is positioned at a side of said concrete floor slab (1), and said valve shaft controller (33) the said valve shaft operating stem of control (2) rotates; Said valve shaft operating stem (2) passes said concrete floor slab (1) and connects said valve shaft (23) through coupling; The said valve shaft axle sleeve of said valve shaft (23) outer surface socket (4), said valve shaft axle sleeve (4) is fixed on the medial axis of said valve disc (5).
2. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 1; It is characterized in that said valve shaft controller (33) comprises operating grip (12), operating stem head (13), clamping bolt (11), operating grip fixed tray (10) and is arranged at the locating slot (20) on the operating grip fixed tray (10);
Said operating stem head (13) is positioned at the top of said valve shaft operating stem (2); One end of said operating grip (12) has the hole that cooperates with said operating stem head (13); Said operating stem head (13) be shaped as square or rhombus; Said operating stem head (13) inserts in the said hole, and the other end of said operating grip (12) is fixed in the said locating slot (20) with clamping bolt (11).
3. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 2; It is characterized in that; Said valve shaft controller (33) also comprises dial (19), and the end that said operating grip is installed the clamping bolt end also comprises positioning pointer (18), is used to indicate the aperture of said valve disc (5).
4. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 2; It is characterized in that said valve shaft controller (33) also comprises fixed tray base plate (15), said operating grip fixed tray (10) is fixed on the fixed tray base plate (15); Also be fixed with axle sleeve (17) on the said fixed tray base plate (15); Said axle sleeve (17) is socketed on said valve shaft operating stem (2) outside, and the upper end of said axle sleeve (17) is provided with thrust bearing one (14), and said axle sleeve (17) is gone up at least one seal ring (16) is set.
5. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 1 is characterized in that said valve disc (5) is provided with at least one stiffening rib (6).
6. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 1 is characterized in that said coupling is an Oldham's coupling.
7. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 1 is characterized in that said concrete floor slab (1) is provided with the pre-buried tube of floor operating stem (9), and said valve shaft controller (33) is installed in the pre-buried tube of said floor operating stem (9).
8. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 1; It is characterized in that; Said valve disc (5) is externally connected with butterfly valve shell (8), and the roof anchorage of said butterfly valve shell (8) has bearing outside one (26), and the upper end of said valve shaft (23) is fixed in the said bearing outside one (26) through rotary bearing one (27); Said bearing outside one (26) the outer bearing (ball) cover one (24), the said rotary bearing one (27) of said bearing (ball) cover one (24) axial restraint of also being connected with.
9. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 8; It is characterized in that; The bottom of said butterfly valve shell (8) is fixed with bearing outside two (28); The lower end of said valve shaft (23) is fixed in the said bearing outside two (28) through rotary bearing two (29), said bearing outside two (28) the outer bearing (ball) covers two (32), said bearing (ball) cover two (32) axial restraint rotary bearings two (29) of also being connected with.
10. the single leaf butterfly valve of high temperature nuclear reactor nuclear power station Ventilation Control according to claim 9 is characterized in that, also is connected with thrust bearing two (31) between end, the lower end rotary bearing two (29) of said valve shaft (23) and the bearing (ball) cover two (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101159350A CN102182834B (en) | 2011-05-05 | 2011-05-05 | Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101159350A CN102182834B (en) | 2011-05-05 | 2011-05-05 | Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant |
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| CN102182834A CN102182834A (en) | 2011-09-14 |
| CN102182834B true CN102182834B (en) | 2012-11-14 |
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| CN2011101159350A Active CN102182834B (en) | 2011-05-05 | 2011-05-05 | Ventilation control single-blade butterfly valve for high temperature reactor nuclear power plant |
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| CN102693770A (en) * | 2012-05-28 | 2012-09-26 | 清华大学 | Coordinate ground vehicle system of nuclear power plant |
| WO2016082833A1 (en) * | 2014-11-28 | 2016-06-02 | Avk Holding A/S | A valve arrangement, a method for identifying an underground valve of a valve arrangement and use of a use of valve arrangement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451830Y (en) * | 2000-11-23 | 2001-10-03 | 洛阳玻璃股份有限公司 | Fan butterfly valve |
| CN2856618Y (en) * | 2005-11-30 | 2007-01-10 | 江苏神通阀门有限公司 | Kernel-glass pneumatic butterfly valve |
| CN201715000U (en) * | 2010-05-20 | 2011-01-19 | 中核苏阀科技实业股份有限公司 | Nuclear grade butterfly valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201661693U (en) * | 2010-03-15 | 2010-12-01 | 昆明理工大学 | Hand-operated butterfly valve |
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2011
- 2011-05-05 CN CN2011101159350A patent/CN102182834B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451830Y (en) * | 2000-11-23 | 2001-10-03 | 洛阳玻璃股份有限公司 | Fan butterfly valve |
| CN2856618Y (en) * | 2005-11-30 | 2007-01-10 | 江苏神通阀门有限公司 | Kernel-glass pneumatic butterfly valve |
| CN201715000U (en) * | 2010-05-20 | 2011-01-19 | 中核苏阀科技实业股份有限公司 | Nuclear grade butterfly valve |
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Effective date of registration: 20210111 Address after: 100193 building 26, Zhongguancun Software Park, 8 Dongbeiwang West Road, Haidian District, Beijing Patentee after: CHINERGY Co.,Ltd. Address before: 100084 mailbox, 100084-82 Tsinghua Yuan, Beijing, Haidian District, Beijing Patentee before: TSINGHUA University |
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