CN106898393A - A kind of main pump hydraulic part static pressure test two, three-level seals analogue means - Google Patents
A kind of main pump hydraulic part static pressure test two, three-level seals analogue means Download PDFInfo
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- CN106898393A CN106898393A CN201510963755.6A CN201510963755A CN106898393A CN 106898393 A CN106898393 A CN 106898393A CN 201510963755 A CN201510963755 A CN 201510963755A CN 106898393 A CN106898393 A CN 106898393A
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- sealing
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- sealing flange
- seals
- static pressure
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
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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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to nuclear island main pump hydraulic component inspection technical field, and in particular to a kind of main pump hydraulic part static pressure test two, three-level seals analogue means, for simulating real 2/3# seal assemblies.Sealing flange is installed on 1# closed chambers upper flange top, and sealing flange outer wall is coordinated with 1# closed chamber upper flange inwalls using small―gap suture, and one encapsulation boundary is formed using a sealing ring；Mounting surface and mounting surface location fit on 1# closed chamber upper flanges, are fixed by fixing bolt under sealing flange；Simulation pump shaft is installed on sealing flange endoporus, and by simulating mounting surface and mounting surface location fit under sealing flange inwall at the pump shaft shaft shoulder, sealing flange inwall shaft shoulder lower outer diameter corresponding with simulation pump shaft forms two seals border using No. two sealing rings；Housing screw is arranged on simulation pump shaft and compresses on sealing flange.The present invention is used for simulating real 2/3# seal assemblies, it is ensured that the sealing between pump shaft and 1# closed chamber upper flanges.
Description
Technical field
The invention belongs to nuclear island main pump hydraulic component inspection technical field, and in particular to a kind of main pump hydraulic part
Static pressure test two, three-level seals analogue means, for simulating real 2/3# seal assemblies.
Background technology
Main pump hydraulic part static pressure test apparatus are mainly used in integrally carrying out static pressure test to main pump hydraulic part,
Operation demand is met with each pressure-bearing boundary after verifying hydraulic part heat shielding and the processing of diffuser flange, to ensure to set
It is standby put into operation after safely and steadily run and reactor-loop pressure boundary integrality, so as to increase reaction
Reactor coolant main pump reliability.Main pump hydraulic part static pressure test apparatus main element and onsite application equipment zero
Part is roughly the same, mainly includes：Pump case, main flange, main flange fastening bolt, pump shaft, 2/3# sealing groups
Part.Real 2/3# seal assemblies, including the support of 2/3# moving sealing rings, 2/3# seal retainer rings, No. 2 sealings
Component, No. 3 seal assemblies etc., and 2/3# seal assemblies include the multiple seal forms such as dynamic sealing and static seal.
Actual 2/3# seal component architectures are complicated, expensive and be not easy to installation and debugging.
The content of the invention
It is an object of the invention to provide a kind of main pump hydraulic part static pressure test two, three-level sealing analogue means,
For simulating real 2/3# seal assemblies, it is ensured that the sealing between pump shaft and 1# closed chamber upper flanges.
To reach above-mentioned purpose, the technical solution used in the present invention is：
A kind of main pump hydraulic part static pressure test two, three-level seals analogue means, including air bleeding valve, Sealing Method
Orchid, lifting bolt, housing screw, No. two sealing rings, fixing bolt, a sealing rings；Sealing flange is pacified
Loaded on 1# closed chambers upper flange top, sealing flange outer wall is matched somebody with somebody with 1# closed chamber upper flange inwalls using small―gap suture
Close, one encapsulation boundary is formed using a sealing ring；Mounting surface and 1# closed chamber upper flanges under sealing flange
Upper mounting surface location fit, is fixed by fixing bolt；Simulation pump shaft is installed on sealing flange endoporus, passes through
Mounting surface location fit under mounting surface and sealing flange inwall at the simulation pump shaft shaft shoulder, sealing flange inwall with
The corresponding shaft shoulder lower outer diameter of simulation pump shaft forms two seals border using No. two sealing rings；Housing screw is pacified
On simulation pump shaft and on compression sealing flange, sealing pretension is carried out by housing screw；Outside sealing flange
Wall is provided with air bleeding valve；A lifting bolt is symmetrically installed above sealing flange.
A described sealing ring 9 uses 1 group of Φ 7mm specifications O-RING.
No. two described sealing rings 7 use 2 groups of Φ 7mm specifications O-RING.
Described fixing bolt 8 is 8 1.5 inch bolts.
The device is using the stainless steel making of surface overlaying 304 after 20MnMoNb forgings.
Having the beneficial effect that acquired by the present invention：
The present invention carries out pressure boundary simulation instead of main pump 2/3# seal assemblies, verifies the overproof flange of hydraulic part
Each pressure-bearing boundary meets operation demand after the working process of face, it is ensured that hydraulic part renovation after run security and
Reliability.Primary interface size of the present invention is basically identical with main pump 3# sealing flange covers, and this mode can be most
The 1 of big degree：1 simulation real interface；The present invention simulates real 2/3# seal assemblies with simplified model,
This mode can largely simplify structure, cost-effective and be easily installed debugging, while may be used also during experiment
To bear the environment of pump chamber high pressure, direct economic benefit and practical value can be brought；Sealing Method of the present invention
External diameter forms encapsulation boundary at the blue shaft shoulder corresponding with 1# closed chamber upper flange inwalls and simulation pump shaft respectively,
The 1 group and 2 groups O-RING sealing of Φ 7mm specifications is respectively adopted, this mode simulates real 2/3#
Number at seal form and sealing between seal assembly and pump shaft and 1# closed chamber upper flanges；The present invention is in sealing
Flange outer wall sets air bleeding valve, air that can timely in remover during this mode water filling, it is ensured that
Water can be full of whole device, in order to test during boosting, can preferably verify the sealing simulation of two, three-level
Sealing between device and pump shaft and 1# closed chamber upper flange inwalls；The present invention is in sealing flange in Sealing Method
Blue top installation settings lifting bolt, this mode can facilitate sealing flange to install and dismounting.
Brief description of the drawings
Fig. 1 is main pump hydraulic part static pressure test two, three-level sealing simulation apparatus structure schematic diagram；
Fig. 2 is that main pump hydraulic part static pressure test two, three-level sealing analogue means seals schematic diagram together；
Fig. 3 is the two seals schematic diagram that main pump hydraulic part static pressure test two, three-level seals analogue means；
In figure：1st, 1# closed chambers upper flange；2nd, air bleeding valve；3rd, sealing flange；4th, lifting bolt；5、
Housing screw；6th, pump shaft is simulated；7th, No. two sealing rings；8th, fixing bolt；9th, a sealing ring.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 1-Fig. 3, a kind of main pump hydraulic part static pressure test two, three-level sealed mould of the present invention
Intend device, be applied to simulate the sealing between pump shaft 6 and the side wall of 1# closed chambers upper flange 1, including air bleeding valve
2nd, sealing flange 3, lifting bolt 4,5, No. two sealing rings 7 of housing screw, fixing bolt 8, are close
Seal 9；Sealing flange 3 is installed on the top of 1# closed chambers upper flange 1, and the outer wall of sealing flange 3 is sealed with 1#
The inwall of room upper flange 1 is coordinated using small―gap suture, using 1 group of Φ 7mm specifications number sealing ring 9 of O-RING
One encapsulation boundary is formed, 3 times mounting surfaces of sealing flange are matched somebody with somebody with mounting surface positioning on 1# closed chambers upper flange 1
Close, fixed by 8 1.5 inches of fixing bolts 8.Simulation pump shaft 6 is installed on the endoporus of sealing flange 3, leads to
Cross mounting surface and mounting surface location fit, sealing flange 3 under the inwall of sealing flange 3 at the shaft shoulder of simulation pump shaft 6
Inwall shaft shoulder lower outer diameter corresponding with simulation pump shaft 6 is using No. bis- sealings of 2 groups of Φ 7mm specifications O-RING
Circle 7 forms two seals border, and this kind of implementation method simulates 2/3# seal assemblies and pump shaft and 1# closed chambers
Number at seal form and sealing between upper flange.Housing screw 5 is arranged on simulation pump shaft 6 and compresses close
On envelope flange 3, sealing pretension is carried out by housing screw 5, the outer wall of sealing flange 3 is provided with air bleeding valve 2,
Air is discharged during for static pressure test water filling, this kind of mode ensures close between pump shaft and 1# closed chamber upper flanges
Seal reliability and shell bears pump chamber inner high voltage environment.2 lifting bolts 4 are symmetrically installed in the top of sealing flange 3,
Installed and dismounting for sealing flange.Primary interface size of the present invention is basically identical with main pump 3# sealing flange covers,
Maximum flange diameter is Φ 517mm, and diametric(al) bolt hole distance is 447mm, using 8 1.5 inches
Fixing bolt 8 is fixed.The present invention is using the stainless steel making of surface overlaying 304 after 20MnMoNb forgings.
Claims (5)
1. a kind of main pump hydraulic part static pressure test two, three-level seals analogue means, it is characterised in that：Including
Air bleeding valve (2), sealing flange (3), lifting bolt (4), housing screw (5), No. two sealing rings (7),
Fixing bolt (8), a sealing ring (9)；Sealing flange (3) is installed on 1# closed chambers upper flange (1)
Top, sealing flange (3) outer wall is coordinated with 1# closed chambers upper flange (1) inwall using small―gap suture, is used
A number sealing ring (9) forms one encapsulation boundary；Mounting surface and method on 1# closed chambers under sealing flange (3)
Mounting surface location fit on blue (1), it is fixed by fixing bolt (8)；Simulation pump shaft (6) is installed on close
Envelope flange (3) endoporus, by simulating at pump shaft (6) shaft shoulder under mounting surface and sealing flange (3) inwall
Mounting surface location fit, sealing flange (3) inwall shaft shoulder lower outer diameter corresponding with simulation pump shaft (6) is adopted
Two seals border is formed with No. two sealing rings (7)；Housing screw (5) is in simulation pump shaft (6)
And compress on sealing flange (3), sealing pretension is carried out by housing screw (5)；Sealing flange (3) is outward
Wall is provided with air bleeding valve (2)；2 lifting bolts (4) are symmetrically installed in sealing flange (3) top.
2. main pump hydraulic part static pressure test two, three-level according to claim 1 seals analogue means,
It is characterized in that：A described sealing ring (9) uses 1 group of Φ 7mm specifications O-RING.
3. main pump hydraulic part static pressure test two, three-level according to claim 1 seals analogue means,
It is characterized in that：No. two described sealing rings (7) use 2 groups of Φ 7mm specifications O-RING.
4. main pump hydraulic part static pressure test two, three-level according to claim 1 seals analogue means,
It is characterized in that：Described fixing bolt (8) is 8 1.5 inch bolts.
5. main pump hydraulic part static pressure test two, three-level according to claim 1 seals analogue means,
It is characterized in that：The device is using the stainless steel making of surface overlaying 304 after 20MnMoNb forgings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963755.6A CN106898393B (en) | 2015-12-18 | 2015-12-18 | A kind of main pump hydraulic component static pressure test two, three-level seal simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510963755.6A CN106898393B (en) | 2015-12-18 | 2015-12-18 | A kind of main pump hydraulic component static pressure test two, three-level seal simulator |
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| Publication Number | Publication Date |
|---|---|
| CN106898393A true CN106898393A (en) | 2017-06-27 |
| CN106898393B CN106898393B (en) | 2018-11-02 |
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| CN201510963755.6A Active CN106898393B (en) | 2015-12-18 | 2015-12-18 | A kind of main pump hydraulic component static pressure test two, three-level seal simulator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102909A (en) * | 2018-07-20 | 2018-12-28 | 中广核研究院有限公司 | A kind of novel in-pile component sealing compressing structure |
| CN110164570A (en) * | 2019-04-30 | 2019-08-23 | 中广核核电运营有限公司 | Main pump No.1 sealing low pressure difference runs off-line test method and system |
| CN113532769A (en) * | 2021-07-05 | 2021-10-22 | 哈尔滨电气动力装备有限公司 | Nuclear power station nuclear main pump seal chamber water pressure experiment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465279A (en) * | 1994-09-09 | 1995-11-07 | Westinghouse Electric Corporation | Reactor coolant pump seal test decontamination housing |
| CN102477992A (en) * | 2010-11-25 | 2012-05-30 | 江苏双达泵阀集团有限公司 | Residual heat removal pump for PWR (pressurized water reactor) nuclear power plants |
| CN102808760A (en) * | 2012-09-04 | 2012-12-05 | 哈尔滨电气动力装备有限公司 | Testing device for three-level fluid dynamic pressure mechanical seal |
| CN105115681A (en) * | 2015-08-13 | 2015-12-02 | 中广核核电运营有限公司 | Static pressure test system of main pump hydraulic component |
| CN205354675U (en) * | 2015-12-18 | 2016-06-29 | 核动力运行研究所 | Experimental two, tertiary sealed analogue means of main pump hydraulic component static pressure |
-
2015
- 2015-12-18 CN CN201510963755.6A patent/CN106898393B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465279A (en) * | 1994-09-09 | 1995-11-07 | Westinghouse Electric Corporation | Reactor coolant pump seal test decontamination housing |
| CN102477992A (en) * | 2010-11-25 | 2012-05-30 | 江苏双达泵阀集团有限公司 | Residual heat removal pump for PWR (pressurized water reactor) nuclear power plants |
| CN102808760A (en) * | 2012-09-04 | 2012-12-05 | 哈尔滨电气动力装备有限公司 | Testing device for three-level fluid dynamic pressure mechanical seal |
| CN105115681A (en) * | 2015-08-13 | 2015-12-02 | 中广核核电运营有限公司 | Static pressure test system of main pump hydraulic component |
| CN205354675U (en) * | 2015-12-18 | 2016-06-29 | 核动力运行研究所 | Experimental two, tertiary sealed analogue means of main pump hydraulic component static pressure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102909A (en) * | 2018-07-20 | 2018-12-28 | 中广核研究院有限公司 | A kind of novel in-pile component sealing compressing structure |
| CN110164570A (en) * | 2019-04-30 | 2019-08-23 | 中广核核电运营有限公司 | Main pump No.1 sealing low pressure difference runs off-line test method and system |
| CN110164570B (en) * | 2019-04-30 | 2020-10-13 | 中广核核电运营有限公司 | Main pump first sealing low differential pressure operation offline test method and system |
| CN113532769A (en) * | 2021-07-05 | 2021-10-22 | 哈尔滨电气动力装备有限公司 | Nuclear power station nuclear main pump seal chamber water pressure experiment method |
| CN113532769B (en) * | 2021-07-05 | 2022-11-25 | 哈尔滨电气动力装备有限公司 | Nuclear power station nuclear main pump seal chamber water pressure experiment method |
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| Publication number | Publication date |
|---|---|
| CN106898393B (en) | 2018-11-02 |
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