CN209604623U - A kind of rupture disk protective device - Google Patents
A kind of rupture disk protective device Download PDFInfo
- Publication number
- CN209604623U CN209604623U CN201920030615.7U CN201920030615U CN209604623U CN 209604623 U CN209604623 U CN 209604623U CN 201920030615 U CN201920030615 U CN 201920030615U CN 209604623 U CN209604623 U CN 209604623U
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- China
- Prior art keywords
- rupture disk
- adapter tube
- flange
- upper flange
- protective device
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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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Abstract
The utility model belongs to nuclear reactor steam generator decompression protection technical field; more particularly to a kind of rupture disk protective device; for decompression protection when sodium-water reaction to occur in the steam generator in sodium-cooled fast reactor, the adapter tube of the inside of the cavity constituted is tightly connected by top cover and shell including being arranged in；The adapter tube entrance of the bottom end of adapter tube is connected on the pedestal of the bottom end of shell, for being connected to steam generator, the leakage path of the internal gas pressure of steam generator when as sodium-water reaction；The top of adapter tube sealing is realized by one piece of replaceable rupture disk；The pressure relief vent for being connected to pressure relief equipment is additionally provided on shell, explosion can occur when internal gas pressure reaches setting value for rupture disk, so that gas enters cavity by adapter tube, and enter pressure relief equipment through pressure relief vent.The device can very fast pressure release, prevent fault spread, and maintenance cost is low, for ease of maintenaince replace.
Description
Technical field
The utility model belongs to nuclear reactor steam generator decompression protection technical field, and in particular to a kind of rupture disk guarantor
Protection unit.
Background technique
Steam generator is the key equipment of the main heat-transfer system of sodium-cooled fast reactor.In sodium-cooled fast reactor operational process, steam
Generator longtime running high temperature, high pressure, high flow rate liquid wash away and the bad working environments of sodium environment under, it may occur however that water vapour
The leakage accident of pipeline.Once occurring, violent sodium-water reaction will occur for water and sodium for leakage, a large amount of heat be released, so that sodium water
Nearby temperature, pressure sharply increase reaction zone, cause the expansion and sprawling of leakage, not only damage to steam generator, sternly
The normal operation of sodium-cooled fast reactor can be threatened when weight.
Since sodium-water reaction is a quick release hydrogen, the rapidly explosive reaction boosted, occur in sodium-water reaction
Moment, quick release fall superpressure and reactant, are the effective measures to avoid greater disaster.Currently, various countries are directed to the accident work
The control technology that condition uses is all the same, i.e., installation blasting piece device realizes overpressure relief when sodium-water reaction occurs, but for tool
The technical solution and technical requirements of body are variant.
Utility model content
The purpose of the utility model is to provide a kind of rupture disk protective device, when sodium-water reaction occurs in steam generator,
After causing equipment superpressure, rupture disk protective device can timely explosion, quick pressure releasing, to realize secondary circuit main cooling system pressure
The integrality on boundary, avoiding greater disaster.
To achieve the above objectives, the technical solution adopted in the utility model is a kind of rupture disk protective device, cold for sodium
Decompression protection when sodium-water reaction occurs in steam generator in fast reactor, wherein including setting by top cover and shell sealing
The adapter tube of the inside of the cavity connected and composed；The adapter tube entrance of the bottom end of the adapter tube is connected to the pedestal of the bottom end of the shell
On, for being connected to the steam generator, when as sodium-water reaction the internal gas pressure of the steam generator release it is logical
Road；The top of the adapter tube sealing is realized by one piece of replaceable rupture disk；It is additionally provided on the shell for being connected to pressure release
The pressure relief vent of equipment, when the internal gas pressure reaches setting value explosion can occur for the rupture disk, so that gas
Enter the cavity by the adapter tube, and enters the pressure relief equipment through the pressure relief vent.
Further, the top cover bottom end is equipped with the first upper flange, and the housing top end is equipped with the first lower flange, the top cover
It is tightly connected with the shell by first upper flange and first lower flange and constitutes the cavity.
Further, it is equipped with the second lower flange and the second upper flange on the top of the adapter tube, the rupture disk passes through described
Second lower flange and second upper flange are sealingly disposed in the top of the adapter tube.
Further, the rupture disk is arranged on clamper by welded seal, constitutes blasting piece device, the rupture disk
Device is sealingly disposed in the top of the adapter tube by second lower flange and second upper flange；The blasting piece device
Sealing is realized by the second taper washer between second lower flange, or passes through second taper washer and quoit
Realize dual-seal, the quoit is O-shaped quoit or c-type quoit；The blasting piece device and second upper flange
Between can by metal washer seal or not seal.
Further, sealing is realized by the first taper washer between first upper flange and first lower flange；In
First upper flange of the first taper washer periphery is connected with the bolt of first lower flange, is equipped with plain cushion
Circle, realizes the further sealing between first upper flange and first lower flange, and the bolt passes through the plain washer
Connect first upper flange and first lower flange.
Further, spacer flanger is equipped between second lower flange and second upper flange, three flanges pass through
It is bolted, the rupture disk is arranged between second upper flange and the spacer flanger；The spacer flanger with it is described
The part of the side edge touching of rupture disk is equipped with annular groove, passes through the real by pressure limit of the convex portion of the annular groove and the rupture disk
End sealing of the existing rupture disk to the adapter tube；Or metal gasket is set between the spacer flanger and the rupture disk
Circle realizes the rupture disk to the end sealing of the adapter tube.
Further, sealing is realized by the 4th taper washer between the spacer flanger and second lower flange.
Further, sealing is realized by third taper washer between first upper flange and first lower flange.
It further, further include the low spot row's sodium pipe of setting on the base, the low spot row sodium pipe is used for external container
It is tightly connected the connection for constituting cavity with first upper flange and first lower flange, the liquid in the cavity is discharged
Sodium.
The utility model has the beneficial effects that:
1. big sodium-water reaction can occur in steam generator, after causing equipment superpressure, very fast pressure release prevents accident from expanding
Bigization.
2. the processing of rupture disk protective device is low with maintenance cost, for ease of maintenaince and replace.
Detailed description of the invention
Fig. 1 is the schematic diagram of A type rupture disk protective device described in specific embodiment of the present invention；(arrow in figure
Head is gas aerial drainage direction)
Fig. 2 is the schematic diagram of Type B rupture disk protective device described in specific embodiment of the present invention；(arrow in figure
Head is gas aerial drainage direction)
In figure: 1- pedestal, 2- nameplate, 3- rupture disk label, 4- shell, the first lower flange of 5-, the first taper washer of 6-, 7-
First upper flange, 8- top cover, 9- bolt, 10- nut, 11- gasket, the second upper flange of 12-, 13- blasting piece device, 14- second
Taper washer, the second lower flange of 15-, 16- adapter tube, 17- rupture disk, 18- top cover suspension hook, 19- pressure relief vent, 20- low spot arrange sodium
Pipe, 21- adapter tube entrance, 22- plain washer, 23- third taper washer, the 4th taper washer of 24-, 25- spacer flanger.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
A kind of rupture disk protective device provided by the utility model, the pressure release for the steam generator in sodium-cooled fast reactor are protected
Shield, including the components such as shell 4, top cover 8, adapter tube 16, rupture disk 17.
As shown in Figure 1 and Figure 2, top cover 8 is tubular, and end sealing, bottom end is equipped with the first upper flange 7；4 top of shell is equipped with
First lower flange 5, bottom end are equipped with pedestal 1.Top cover 8 and shell 4 pass through the first upper flange 7 and the first lower flange 5 sealed connection structure
At cavity.
Adapter tube 16 is vertically arranged in top cover 8 and shell 4 is tightly connected the inside of the cavity constituted；The bottom end of adapter tube 16 connects
Pipe population 21 is connected on the pedestal 1 of the bottom end of shell 4, for being connected to steam generator, so that adapter tube 16 is used as steam generation
The leakage path of internal gas pressure in device when generation sodium-water reaction, sodium-water reaction are let out by water vapour pipeline in steam generator
Leakage causes；One piece of rupture disk 17 is arranged in the end sealing of adapter tube 16, and rupture disk 17 is replaceable；It is additionally provided on shell 4 for being connected to
The pressure relief vent 19 of pressure relief equipment；Rupture disk 17 is a thin rounded flakes, and in pressure leak process, rupture disk 17 can be in internal gas
Pressure reaches setting value (upper limit feasible value of rupture disk) Shi Fasheng explosion, so that gas enters cavity by adapter tube 16, and passes through
Pressure relief vent 19 enters pressure relief equipment.
The second lower flange 15 and the second upper flange 12, the top of the second lower flange 15 and adapter tube 16 are equipped on the top of adapter tube 16
To be tightly connected between end, rupture disk 17 is sealingly disposed in the top of adapter tube 16 by the second lower flange 15 and the second upper flange 12
End.
Be additionally provided with low spot row's sodium pipe 20 on pedestal 1, low spot arrange sodium pipe 20 for external container and the first upper flange 7 and
First lower flange 5 is tightly connected the connection for constituting cavity, and discharge enters the Liquid Sodium in cavity during the pressure relief process.
The top cover suspension hook 18 of 8 outer surface of top cover is used for lifting appliance when rupture disk protective device is installed and is overhauled.
According to actual needs, rupture disk protective device provided by the utility model includes A type and Type B, and specific difference is such as
Under:
A type rupture disk protective device, as shown in Figure 1,
Rupture disk 17 is arranged on clamper by welded seal, constitutes blasting piece device 13, and blasting piece device 13 passes through
Second lower flange 15 and the second upper flange 12 are sealingly disposed in the top of adapter tube 16；Blasting piece device 13 and the second lower flange 15 it
Between sealing realized by the second taper washer 14, or dual-seal, metal are realized by the second taper washer 14 and quoit
Circle is O-shaped quoit or c-type quoit；Between blasting piece device 13 and the second upper flange 12 can by metal washer seal or not
It seals.
Sealing is realized by the first taper washer 6 between first upper flange 7 and the first lower flange 5；In the first taper washer 6
First upper flange 7 of periphery connect with the bolt of the first lower flange 5, is equipped with plain washer 22, the first upper flange 7 of realization and the
Further sealing between one lower flange 5, bolt pass through plain washer 22 and connect the first upper flange 7 and the first lower flange 5.
After to be blasted 17 explosions, can integral replacing blasting piece device 13, do not need cutting pipeline.
Type B rupture disk protective device, as shown in Fig. 2,
Spacer flanger 25 is equipped between the second lower flange 15 and the second upper flange 12, three flanges are bolted,
Rupture disk 17 is arranged between the second upper flange 12 and spacer flanger 25；What the side edge of spacer flanger 25 and rupture disk 17 was touched
Part is equipped with annular groove, realizes that the top of 17 butt tube 16 of rupture disk is close by annular groove and being limited by pressure for the convex portion of rupture disk 17
Envelope；Or the end sealing that metal washer realizes 17 butt tube 16 of rupture disk is set between spacer flanger 25 and rupture disk 17.
Sealing is realized by the 4th taper washer 24 between spacer flanger 25 and the second lower flange 15.
Sealing is realized by third taper washer 23 between first upper flange 7 and the first lower flange 5.
After to be blasted 17 explosions, rupture disk 17 can be directly replaced, does not need cutting pipeline.
Device described in the utility model is not limited to embodiment described in specific embodiment, those skilled in the art
Technical solution according to the present utility model obtains other embodiments, also belongs to the technological innovation scope of the utility model.
Claims (9)
1. a kind of rupture disk protective device is protected for pressure release when sodium-water reaction occurring in the steam generator in sodium-cooled fast reactor
Shield, it is characterized in that: including adapter tube (16) of the setting in the inside for being tightly connected the cavity constituted by top cover (8) and shell (4)；Institute
It is described for being connected on the pedestal (1) for the bottom end that the adapter tube entrance (21) for stating the bottom end of adapter tube (16) is connected to the shell (4)
Steam generator, the leakage path of the internal gas pressure of steam generator when as sodium-water reaction；The adapter tube (16)
Top sealing is realized by one piece of replaceable rupture disk (17)；It is additionally provided on the shell (4) for being connected to pressure relief equipment
Pressure relief vent (19), when the internal gas pressure reaches setting value explosion can occur for the rupture disk (17) so that
Gas enters the cavity by the adapter tube (16), and enters the pressure relief equipment through the pressure relief vent (19).
2. rupture disk protective device as described in claim 1, it is characterized in that: the top cover (8) bottom end is equipped with the first upper flange
(7), shell (4) top is equipped with the first lower flange (5), the top cover (8) and the shell (4) and passes through method on described first
Blue (7) and first lower flange (5), which are tightly connected, constitutes the cavity.
3. rupture disk protective device as claimed in claim 2, it is characterized in that: in the case where the top of the adapter tube (16) is equipped with second
Flange (15) and the second upper flange (12), the rupture disk (17) pass through second lower flange (15) and second upper flange
(12) it is sealingly disposed in the top of the adapter tube (16).
4. rupture disk protective device as claimed in claim 3, it is characterized in that: the rupture disk (17) is arranged by welded seal
It on clamper, constitutes blasting piece device (13), the blasting piece device (13) passes through second lower flange (15) and described
Second upper flange (12) is sealingly disposed in the top of the adapter tube (16)；The blasting piece device (13) and second lower flange
(15) sealing is realized by the second taper washer (14) between, or is realized by second taper washer (14) and quoit
Dual-seal, the quoit are O-shaped quoit or c-type quoit；The blasting piece device (13) and second upper flange
(12) it can be sealed or not sealed by metal washer between.
5. rupture disk protective device as claimed in claim 4, it is characterized in that: under first upper flange (7) and described first
Sealing is realized by the first taper washer (6) between flange (5)；On described the first of the first taper washer (6) periphery
Flange (7) is connected with the bolt of first lower flange (5), is equipped with plain washer (22), realizes first upper flange (7)
Further sealing between first lower flange (5), the bolt pass through in the plain washer (22) connection described first
Flange (7) and first lower flange (5).
6. rupture disk protective device as claimed in claim 3, it is characterized in that: in second lower flange (15) and described second
Spacer flanger (25) are equipped between upper flange (12), three flanges are bolted, and the rupture disk (17) is arranged described
Between second upper flange (12) and the spacer flanger (25)；The edge phase of the spacer flanger (25) and the rupture disk (17)
The part of contact is equipped with annular groove, realizes the explosion by the annular groove and being limited by pressure for the convex portion of the rupture disk (17)
End sealing of the piece (17) to the adapter tube (16)；Or it is arranged between the spacer flanger (25) and the rupture disk (17)
Metal washer realizes the rupture disk (17) to the end sealing of the adapter tube (16).
7. rupture disk protective device as claimed in claim 6, it is characterized in that: the spacer flanger (25) and second laxative remedy
Sealing is realized by the 4th taper washer (24) between blue (15).
8. rupture disk protective device as claimed in claim 7, it is characterized in that: under first upper flange (7) and described first
Sealing is realized by third taper washer (23) between flange (5).
9. rupture disk protective device as claimed in claim 2, it is characterized in that: further including that setting is low on the pedestal (1)
Point row sodium pipe (20), low spot row sodium pipe (20) is for external container and first upper flange (7) and first laxative remedy
Blue (5) are tightly connected the connection for constituting cavity, and the Liquid Sodium in the cavity is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920030615.7U CN209604623U (en) | 2019-01-09 | 2019-01-09 | A kind of rupture disk protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920030615.7U CN209604623U (en) | 2019-01-09 | 2019-01-09 | A kind of rupture disk protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209604623U true CN209604623U (en) | 2019-11-08 |
Family
ID=68400157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920030615.7U Active CN209604623U (en) | 2019-01-09 | 2019-01-09 | A kind of rupture disk protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209604623U (en) |
-
2019
- 2019-01-09 CN CN201920030615.7U patent/CN209604623U/en active Active
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