CN107393612A - The passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment - Google Patents
The passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment Download PDFInfo
- Publication number
- CN107393612A CN107393612A CN201710638762.8A CN201710638762A CN107393612A CN 107393612 A CN107393612 A CN 107393612A CN 201710638762 A CN201710638762 A CN 201710638762A CN 107393612 A CN107393612 A CN 107393612A
- Authority
- CN
- China
- Prior art keywords
- support bar
- exhaust cap
- shutter board
- water tank
- opposite opened
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
- G21C19/02—Details of handling arrangements
- G21C19/06—Magazines for holding fuel elements or control elements
- G21C19/07—Storage racks; Storage pools
-
- 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
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
- G21C9/004—Pressure suppression
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment, including frame assembly, louver assembly and support component, frame assembly includes upper framework, underframe and two body side frames, louver assembly is symmetrically arranged with two, louver assembly includes shutter board, one of side of shutter board is provided with rotary shaft, shutter board is rotatablely connected with upper framework and underframe respectively by rotary shaft, and the unfolding mode of two shutter boards is opposite opened, support component includes upper bracket, undersetting and gas spring, upper bracket is fixedly installed on the back side of shutter board, undersetting is fixedly installed on body side frame, the both ends of gas spring are hinged with upper bracket and undersetting respectively；When pressure difference of the present invention between IRWST and containment reaches starting differential pressure, exhaust cap can realize that exhaust cap automatically can discharge the steam pressure exceeded inside IRWST rapidly, to prevent IRWST inner overpressures with passive unlatching under pressure.
Description
Technical field
The present invention relates to a kind of exhaust cap, more particularly to material-changing water tank built in a kind of nuclear power generating sets containment are passive split
Formula exhaust cap, belong to nuclear power generating equipment technical field.
Background technology
Material-changing water tank built in nuclear power generating sets containment（IRWST）, be a large volume and inner liner stainless steel water tank, place
In containment below operation platform, IRWST is safe C levels, and antidetonation I kind equipments, the water tank is as one in containment
Overall structure is built, and is separated with steel containment vessel container, when the steam pressure inside IRWST exceeds setting, it is necessary to
One exhaust cap of design automatically can discharge the steam pressure exceeded inside IRWST rapidly, to prevent IRWST inner overpressures,
Also needing to exhaust cap simultaneously can prevent the fragment on operating platform from entering IRWST, therefore, proposing this Shen regarding to the issue above
Please.
The content of the invention
To solve the deficiencies in the prior art, it is passive right that the present invention provides material-changing water tank built in a kind of nuclear power generating sets containment
Open exhaust lid, exhaust cap is designed using opposite opened, equipped with gas spring, when the pressure difference between IRWST and containment reaches out
When opening pressure difference, exhaust cap unlatching passive under pressure, the steaming that exhaust cap will can exceed inside IRWST automatically is realized
Steam pressure is discharged rapidly, and to prevent IRWST inner overpressures, in order to prevent shutter board from closing under gravity, gas spring is hundred
Impeller can prop up shutter board after opening, and keep it turned on exhaust cap, the locking device in exhaust cap can close manually
Shutter board is locked after closing exhaust cap, locking device can bear simultaneously gas spring pressure and exhaust cap open before pressure,
Sealing strip in exhaust cap is able to ensure that the sealing of equipment after exhaust cap closing, exhaust cap is effectively prevented operating platform
On fragment enter IRWST.
The technical solution adopted in the present invention is：
The passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment, including frame assembly, louver assembly and support
Component, the frame assembly include upper framework, underframe and two body side frames, the upper framework, underframe and two body side frames
Rectangular frame is connected into, the louver assembly is symmetrically arranged with two, and the louver assembly includes shutter board, described hundred
Be vertically installed with rotary shaft on one of side of impeller, the upper and lower ends of the shutter board by rotary shaft respectively with framework
Upper framework and underframe rotation connection in component, and the unfolding mode of two shutter boards is opposite opened, the support component bag
Upper bracket, undersetting and gas spring are included, the upper bracket is fixedly installed on the back side of shutter board, and the undersetting is fixedly installed on
On body side frame, the both ends of the gas spring are hinged with upper bracket and undersetting respectively.
As present invention further optimization, described frame assembly also includes support bar, lower support bar, collateral stay
And medial support bar, the support bar are fixedly installed on framework, the lower support bar is fixedly installed on underframe, institute
State collateral stay to be fixedly installed on body side frame, the both ends of the medial support bar are fixed with support bar and lower support bar respectively
Connection, and the axis of the medial support bar overlaps with the vertical axis of rectangular frame.
As present invention further optimization, rotating shaft base is provided with described support bar and lower support bar, it is described
The upper and lower ends of shutter board are rotatablely connected with the rotating shaft base in support bar and lower support bar respectively by rotary shaft, improve hundred
The rotating effect of impeller.
As present invention further optimization, described support bar, lower support bar, collateral stay and medial support bar with
Sealing strip is provided between shutter board, the sealing strip is connected to support bar, lower support bar, collateral stay and medial support bar
On, sealing strip is able to ensure that the sealing of equipment after exhaust cap closing, exhaust cap is effectively prevented broken on operating platform
Piece enters IRWST.
As present invention further optimization, described sealing strip is ox horn formula structure made of ethylene propylene diene monomer (EPDM) material
Sealing strip, effectively improve sealing effectiveness.
As present invention further optimization, between described framework and framework, between support bar and framework and support
It is welded to connect between bar and support bar using full weld mode, all weld grindings are smooth, and support bar is smoothed after being welded with support bar,
Form flatness≤250um of plane.
As present invention further optimization, described shutter board is hollow box body structure, and described shutter board is
Compacting is carried out to edge be again made by carrying out twisting side after two blade punch formings synthesizing, avoid seeping water, described rotation
Axle is welded to connect with shutter board, in the mechanical performance for being internally provided with square reinforced pipe, improving shutter board of described shutter board
And intensity.
As present invention further optimization, in addition to locking device, the locking device includes pedestal and lock core, described
Pedestal is fixedly installed on the back side of shutter board, and the lock core is fixedly installed in medial support bar, and the lock core and pedestal phase
Mutually corresponding, the centre of the pedestal has been internally formed along base length formed with the breach inserted for lock core, the pedestal
The passage of direction extension, the breach among the passage and pedestal communicate, and by interior in the passage of pedestal central indentation both sides
Steel ball, spring and holding screw outwards are disposed with, steel ball and spring is limited in passage by the holding screw, two steel
Ball is acted on by spring force and pins the lock core being inserted into breach, and the locking device in exhaust cap can be vented in manual-lock
Shutter board is locked after lid, locking device can bear simultaneously gas spring pressure and exhaust cap open before pressure.
As present invention further optimization, two locking devices are provided with each louver assembly, improve locking effect
Fruit.
As present invention further optimization, the front of described shutter board is provided with handle, is easy to manual unlocking or pass
Close exhaust cap.
The beneficial effects of the present invention are：Exhaust cap is designed using opposite opened, equipped with gas spring, as IRWST and safety
When pressure difference between shell reaches starting differential pressure, exhaust cap unlatching passive under pressure, realize that exhaust cap can be automatic
The steam pressure exceeded inside IRWST is discharged rapidly, to prevent IRWST inner overpressures, in order to prevent shutter board from making in gravity
With lower closing, gas spring can prop up shutter board after shutter board opening, keep it turned on exhaust cap, the lock in exhaust cap
Tight device can lock shutter board after manual-lock exhaust cap, and locking device can bear pressure and the row of gas spring simultaneously
Gas lid open before pressure, the sealing strip in exhaust cap be able to ensure that exhaust cap close after equipment sealing, enable exhaust cap
It is enough effectively to prevent the fragment on operating platform from entering IRWST.
Brief description of the drawings：
Fig. 1 is the structural representation of exhaust cap of the present invention in the on-state；
Schematic diagrames of the Fig. 2 for A in Fig. 1 to section shutter board full-gear；
Schematic diagrames of the Fig. 3 for A in Fig. 1 to section shutter board closed mode；
Fig. 4 be in Fig. 1 B to cross-sectional view；
Fig. 5 is frame assembly structural representation of the present invention；
Fig. 6 be in Fig. 5 A to cross-sectional view；
Fig. 7 be in Fig. 5 B to cross-sectional view；
Fig. 8 is louver assembly structural representation of the present invention；
Fig. 9 is Fig. 8 top view；
Figure 10 is Fig. 8 left view；
Figure 11 is A in Figure 10 to cross-sectional view；
Figure 12 is shutter board junction structure schematic diagram of the present invention；
Figure 13 is Figure 12 top view；
Figure 14 is A in Figure 13 to cross-sectional view；
Figure 15 is the structural representation of locking device of the present invention；
Figure 16 is the cross-sectional structure schematic diagram of sealing strip in the present invention；
Main Reference Numerals implication is as follows in figure：
The upper frameworks of 1-, 2- underframes, 3- body side frames, 4- shutter boards, 5- rotary shafts, 6- upper brackets, 7- undersettings, 8- gas springs,
9- support bars, support bar under 10-, the collateral stays of 11-, 12- medial support bars, 13- rotating shaft bases, 14- sealing strips, 15- side
Shape reinforced pipe, 16- pedestals, 17- lock cores, 18- steel balls, 19- springs, 20- holding screws, 21- handles.
Embodiment：
Specific introduction is done to the present invention with reference to the accompanying drawings and examples.
As represented in figures 1 through 14：The present embodiment is a kind of passive opposite opened exhaust of material-changing water tank built in nuclear power generating sets containment
Lid, including frame assembly, louver assembly and support component, wherein, frame assembly includes upper framework 1, underframe 2 and two side frames
Frame 3, upper framework 1, underframe 2 and two body side frames 3 are connected into rectangular frame, and louver assembly is symmetrically arranged with two, and hundred
Leaf component includes shutter board 4, is vertically installed with rotary shaft 5 on one of side of shutter board 4, and up and down the two of shutter board 4
End is rotatablely connected with the upper framework 1 in frame assembly and underframe 2 respectively by rotary shaft 5, and the opening side of two shutter boards 4
Formula is opposite opened, and support component includes upper bracket 6, undersetting 7 and gas spring 8, and upper bracket 6 is fixedly installed on the back of the body of shutter board 4
Face, undersetting 7 are fixedly installed on body side frame 3, and the both ends of gas spring 8 are be hinged with upper bracket 6 and undersetting 7 respectively.
Frame assembly in the present embodiment also includes support bar 9, lower support bar 10, collateral stay 11 and medial support bar
12, support bar 9 is fixedly installed on framework 1, and lower support bar 10 is fixedly installed on underframe 2, and collateral stay 11 is fixed
It is arranged on body side frame 3, the both ends of medial support bar 12 are fixedly connected with support bar 9 and lower support bar 10 respectively, and middle
The axis of support bar 12 overlaps with the vertical axis of rectangular frame；Moreover, the present embodiment is in support bar 9 and lower support bar 10
Be provided with rotating shaft base 13, the upper and lower ends of shutter board 4 by rotary shaft 5 respectively with support bar 9 and lower support bar 10
Rotating shaft base 13 is rotatablely connected, and improves the rotating effect of shutter board 4.
The present embodiment is between support bar 9, lower support bar 10, collateral stay 11 and medial support bar 12 and shutter board 4
Sealing strip 14 is provided with, sealing strip 14 is connected in support bar 9, lower support bar 10, collateral stay 11 and medial support bar 12,
Sealing strip 14 is able to ensure that the sealing of equipment after exhaust cap closing, exhaust cap is effectively prevented the fragment on operating platform
Into IRWST；As shown in figure 16, the sealing strip 14 in the present embodiment is that ox horn formula structure is close made of ethylene propylene diene monomer (EPDM) material
Strip of paper used for sealing, effectively improve sealing effectiveness.
In the present embodiment, used between framework and framework, between support bar and framework and between support bar and support bar
Full weld mode is welded to connect, and all weld grindings are smooth, and support bar and support bar are smoothed after welding, formed the flatness of plane≤
250um。
Shutter board 4 in the present embodiment is hollow box body structure, and shutter board 4 is laggard by two blade punch formings
The side synthesis of row strand carries out compacting to edge again and is made, and avoids seeping water, rotary shaft 5 is welded to connect with shutter board 4, in shutter board
4 mechanical performance and intensity that are internally provided with square reinforced pipe 15, improve shutter board 4.
As shown in figure 15, locking device is also included in the present embodiment, and two lockings are provided with each louver assembly
Device, locking device include pedestal 16 and lock core 17, and pedestal 16 is fixedly installed on the back side of shutter board 4, and lock core 17 is fixedly installed
In medial support bar 12, and lock core 17 is mutually corresponding with pedestal 16, and the centre of pedestal 16 for lock core 17 formed with inserting
The breach of breach, the passage being internally formed along the extension of the length direction of pedestal 16 of pedestal 16, passage and the centre of pedestal 16 communicates,
And it is disposed with steel ball 18, spring 19 and holding screw 20 from inside to outside in the passage of the central indentation both sides of pedestal 16, tightly
Determine screw 20 steel ball 18 and spring 19 are limited in passage, two steel balls 18 will be inserted into breach by the effect of the elastic force of spring 19
Lock core 17 pin, the locking device in exhaust cap can lock shutter board after manual-lock exhaust cap, locking device energy
Pressure before the enough pressure for bearing gas spring simultaneously and exhaust cap unlatchings.
The present embodiment is provided with handle 21 in the front of shutter board 4, is easy to manual unlocking or closes exhaust cap.
The present invention be successfully applied to 3, No. 4 unit engineering IRWST of Zhejiang San Men nuclear power projects exhausts and overflow mechanism,
3, No. 4 unit engineering IRWST exhausts of Haiyang Shandong nuclear power projects and overflow mechanism, Liaoning Xu great Bao nuclear power plants first stage of the project
In IRWST exhausts and overflow mechanism.
Exhaust cap of the present invention is designed using opposite opened, equipped with gas spring, when the pressure difference between IRWST and containment reaches
During starting differential pressure, exhaust cap unlatching passive under pressure, realize what exhaust cap automatically can exceed IRWST inside
Steam pressure is discharged rapidly, and to prevent IRWST inner overpressures, in order to prevent shutter board from closing under gravity, gas spring exists
Shutter board can prop up shutter board after opening, and keep it turned on exhaust cap, the locking device in exhaust cap can be manual
Close exhaust cap after shutter board is locked, locking device can bear simultaneously gas spring pressure and exhaust cap open before pressure
Power, the sealing strip in exhaust cap be able to ensure that exhaust cap close after equipment sealing, enable exhaust cap effectively to prevent from operating
Fragment on platform enters IRWST.
Described above is only the preferred embodiment of patent of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of patent principle of the present invention is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection domain of patent of the present invention.
Claims (10)
1. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment, it is characterised in that：Including frame assembly, hundred
Leaf component and support component, the frame assembly include upper framework, underframe and two body side frames, the upper framework, underframe
Rectangular frame is connected into two body side frames, the louver assembly is symmetrically arranged with two, and the louver assembly includes hundred
Impeller, is vertically installed with rotary shaft on one of side of the shutter board, and the upper and lower ends of the shutter board pass through rotation
Rotating shaft is rotatablely connected with the upper framework and underframe in frame assembly respectively, and the unfolding mode of two shutter boards is opposite opened,
The support component includes upper bracket, undersetting and gas spring, and the upper bracket is fixedly installed on the back side of shutter board, under described
Bearing is fixedly installed on body side frame, and the both ends of the gas spring are hinged with upper bracket and undersetting respectively.
2. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 1, its feature
It is, described frame assembly also includes support bar, lower support bar, collateral stay and medial support bar, the support bar
It is fixedly installed on framework, the lower support bar is fixedly installed on underframe, and the collateral stay is fixedly installed on side frame
On frame, the both ends of the medial support bar are fixedly connected with support bar and lower support bar respectively, and the medial support bar
Axis overlaps with the vertical axis of rectangular frame.
3. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 2, its feature
It is, is provided with rotating shaft base on described support bar and lower support bar, the upper and lower ends of the shutter board pass through rotary shaft
It is rotatablely connected respectively with the rotating shaft base in support bar and lower support bar.
4. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 2, its feature
It is, is provided with sealing strip between described support bar, lower support bar, collateral stay and medial support bar and shutter board, institute
Sealing strip is stated to be connected in support bar, lower support bar, collateral stay and medial support bar.
5. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 4, its feature
It is, described sealing strip is ox horn formula sealing structure bar made of ethylene propylene diene monomer (EPDM) material.
6. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 2, its feature
It is, full weld mode is used between described framework and framework, between support bar and framework and between support bar and support bar
It is welded to connect, all weld grindings are smooth, and support bar is smoothed after being welded with support bar, forms flatness≤250um of plane.
7. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 1, its feature
It is, described shutter board is hollow box body structure, and described shutter board is by being twisted after two blade punch formings
Side synthesis carries out compacting to edge again and is made, and described rotary shaft is welded to connect with shutter board, in described shutter board
It is internally provided with square reinforced pipe.
8. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 2, its feature
It is, in addition to locking device, the locking device include pedestal and lock core, the pedestal is fixedly installed on the back of the body of shutter board
Face, the lock core are fixedly installed in medial support bar, and the lock core is mutually corresponding with pedestal, formation among the pedestal
Have for lock core insertion breach, the pedestal be internally formed along base length direction extend passage, the passage with
Breach among pedestal communicates, and be disposed with from inside to outside in the passage of pedestal central indentation both sides steel ball, spring and
Steel ball and spring is limited in passage by holding screw, the holding screw, and two steel balls will be inserted into by spring force effect
Lock core in breach pins.
9. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 8, its feature
It is, two locking devices is provided with each louver assembly.
10. the passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment according to claim 1, its feature
It is, the front of described shutter board is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638762.8A CN107393612A (en) | 2017-07-31 | 2017-07-31 | The passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638762.8A CN107393612A (en) | 2017-07-31 | 2017-07-31 | The passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment |
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| Publication Number | Publication Date |
|---|---|
| CN107393612A true CN107393612A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710638762.8A Pending CN107393612A (en) | 2017-07-31 | 2017-07-31 | The passive opposite opened exhaust cap of material-changing water tank built in nuclear power generating sets containment |
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| CN (1) | CN107393612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133760A (en) * | 2018-01-17 | 2018-06-08 | 上海核工程研究设计院有限公司 | A kind of passive open-type exhaust valve of used in nuclear power station |
| CN111081396A (en) * | 2019-12-31 | 2020-04-28 | 中国核动力研究设计院 | Can realize radiating foldable heat-proof device of thermal radiation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881341A (en) * | 2012-10-08 | 2013-01-16 | 国家核电技术有限公司 | Volume expansion component and method for increasing gravity safety injection pressure head |
| CN102881342A (en) * | 2012-09-27 | 2013-01-16 | 中国核电工程有限公司 | Active and passive combined heat removal device for containment |
| CN104078085A (en) * | 2014-06-04 | 2014-10-01 | 中国核电工程有限公司 | Containment built-in refueling water tank with washing function |
| CN106356105A (en) * | 2016-11-10 | 2017-01-25 | 上海核工程研究设计院 | Non-kinetic exhaust cover for nuclear power plants |
| CN106409358A (en) * | 2016-11-10 | 2017-02-15 | 上海核工程研究设计院 | Passive air exhausting device of nuclear power plant |
-
2017
- 2017-07-31 CN CN201710638762.8A patent/CN107393612A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881342A (en) * | 2012-09-27 | 2013-01-16 | 中国核电工程有限公司 | Active and passive combined heat removal device for containment |
| CN102881341A (en) * | 2012-10-08 | 2013-01-16 | 国家核电技术有限公司 | Volume expansion component and method for increasing gravity safety injection pressure head |
| CN104078085A (en) * | 2014-06-04 | 2014-10-01 | 中国核电工程有限公司 | Containment built-in refueling water tank with washing function |
| CN106356105A (en) * | 2016-11-10 | 2017-01-25 | 上海核工程研究设计院 | Non-kinetic exhaust cover for nuclear power plants |
| CN106409358A (en) * | 2016-11-10 | 2017-02-15 | 上海核工程研究设计院 | Passive air exhausting device of nuclear power plant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108133760A (en) * | 2018-01-17 | 2018-06-08 | 上海核工程研究设计院有限公司 | A kind of passive open-type exhaust valve of used in nuclear power station |
| CN111081396A (en) * | 2019-12-31 | 2020-04-28 | 中国核动力研究设计院 | Can realize radiating foldable heat-proof device of thermal radiation |
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Application publication date: 20171124 |
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