CN104897343A - Pressure container used for air pressure test of refueling monitoring detector - Google Patents
Pressure container used for air pressure test of refueling monitoring detector Download PDFInfo
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- CN104897343A CN104897343A CN201410078672.4A CN201410078672A CN104897343A CN 104897343 A CN104897343 A CN 104897343A CN 201410078672 A CN201410078672 A CN 201410078672A CN 104897343 A CN104897343 A CN 104897343A
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Abstract
The invention belongs to a pressure container and specifically discloses a pressure container used for air pressure test of a refueling monitoring detector. The pressure container comprises a pressure container main body, a pressure container top cover connected with the pressure container main body, a pressure release valve arranged on the pressure container top cover, a plurality of test docking ports arranged in one side surface of the pressure container main body, and an air mouth arranged in one side surface of the pressure container main body. The pressure container can keep a good sealing performance under the air pressure of 1Mpa, can satisfy the requirement for pressure of the test, occupies small space, simplifies the test process, can carry out air pressure test on three detector combination units simultaneously, shortens the total pressure test time to 1/3 of the original pressure test time, and improves the test efficiency. By changing the structure and size of the pressure container and the docking ports, the scheme of the pressure container can be adapt to the air pressure tests of similar equipment.
Description
Technical field
The present invention relates to a kind of pressure vessel, be specifically related to a kind of nuclear power station and reload the pressure vessel of monitoring detector subassembly gas pressure test.
Background technology
The monitoring of neutron flux during the monitoring detector that reloads reloads for nuclear power station reactor core, be arranged in the duct of core baffle, detector is among primary Ioops cooling medium (BAS).In order to prevent detector from intaking, and boric acid is to the corrosion of detector and signal cable, devises Sealed casing pipe.Sealed casing pipe is divided into two parts, probe segment and hose segment, and probe segment is for containing detector body, and hose segment enters the part of water for containing detector signal cable, and the naked cable of 4 meters long of also having an appointment does not need into water unsealing sleeve pipe.Detector set installs to become a complete detector set component among Sealed casing pipe.
Detector set component needs the gas pressure test of carrying out 0.13Mpa before being taken into use, check groups component sealing.The pressure vessel of existing gas pressure test is a steel pipe being about 4.5 meters.Steel pipe one end welding valve is used for air pressure input, and the other end of steel pipe welds a flange, and for docking with the hose flange of Sealed casing pipe, the long naked cable of detector 4 meters stretches in pressure vessel steel conduit.
Have the shortcoming of 3 aspects in the pressure vessel use of existing gas pressure test: the first, pressure vessel steel pipe is oversize, needs larger place during test; The second, because the plug of detector cables is larger, cannot stretch in pressure vessel steel conduit, therefore need dismounting cable plug before gas pressure test, weld back attaching plug again after off-test, more complicated; 3rd, this pressure vessel once can only carry out gas pressure test to a detector set component, and the gas pressure test that complete 6 detector set components needs to carry out 6 times.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of nuclear power station and reloads the pressure vessel of monitoring detector subassembly gas pressure test, in order to carry out gas pressure test to detector set component.
In order to solve the problems of the technologies described above, a kind of pressure vessel for monitoring detector gas pressure test of reloading of the present invention, this device comprises pressure vessel main body, the pressure vessels top cover be connected with pressure vessel main body, the blowdown valve be positioned on pressure vessels top cover, is positioned at some test docking ports of pressure vessel main body side, is positioned at the valve of pressure vessel main body side.
Described pressure vessel main body is barrel-shaped.
Described test docking port has 3, be uniformly distributed, and test docking port is uniformly distributed at axial stratification along pressure vessel main body circumference 120 °, interval.
Described test docking port is hollow vertebra platform, and bottom is connected to described pressure vessel main body, and internal diameter is 120mm, and top is connected to plain flange, and internal diameter is 30mm.
Described pressure vessels top cover is fixedly connected with two top cover handles.
Described blowdown valve is positioned at pressure vessels top cover center.
Top seal packing ring is had in the middle of pressure vessel main body and pressure vessels top cover.
A kind of pressure vessel for monitoring detector gas pressure test of reloading of the present invention can ensure good sealing below 1Mpa air pressure, the requirement of test to pressure can be met, and place takies little, short form test process, gas pressure test can be carried out to 3 detector set components simultaneously, by total pressure test time shorten to original 1/3rd, improve the efficiency of test.By changing structure and the size of pressure vessel and docking port, this pressure vessel scheme goes for the gas pressure test of similar devices.
Accompanying drawing explanation
Fig. 1 is a kind of pressure vessel front view for monitoring detector gas pressure test of reloading of the present invention.
Fig. 2 is a kind of pressure vessel right view for monitoring detector gas pressure test of reloading of the present invention.
Fig. 3 is a kind of pressure vessel vertical view for monitoring detector gas pressure test of reloading of the present invention.
Fig. 4 is a kind of pressure vessel shop drawing for monitoring detector gas pressure test of reloading of the present invention.
1 is pressure vessels top cover, and 2 is blowdown valve, and 3 is top cover handle, and 4 is top seal packing ring, 5 is bolt, and 6 is valve, and 7 is test docking port, and 8 is plain flange, 9 is pressure vessel main body, and 10 is detector set component, and 11 is detector naked cable, and 12 is docking port packing washer.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As shown in Figure 1,2 and 3, pressure vessel comprises pressure vessel main body 9, pressure vessels top cover 1, blowdown valve 2, top cover handle 3, top seal packing ring 4, bolt 5, valve 6, test docking port 7 and plain flange 8.
Pressure vessel main body 9 is barrel-shaped, material selection 304 stainless steel, and there is larger cavity volume pressure vessel inside, detector naked cable can be turned and put into, and reduce place and take, this cavity volume also can place other equipment needing to carry out gas pressure test.The high 400mm of this pressure vessel main body 9, diameter 400mm, sidewall thickness is 5mm, and bottom thickness is 8-10mm, annulus is arranged at top, and external diameter is 488mm, above circumference be uniformly distributed 8 through holes, in order to erection bolt 5, through hole is positioned on the annulus of diameter 454mm, and through-hole diameter is 8-14mm.
Pressure vessels top cover 1 is disk, diameter is 488mm, identical with the annulus external diameter on pressure vessel main body 9 top, is equipped with 8 through holes in pressure vessels top cover 1 corresponding positions, there is top seal packing ring 4 in the middle of pressure vessel main body 9 and pressure vessels top cover 1, connected by bolt 5.There is blowdown valve 2 at pressure vessels top cover center, and blowdown valve 2 both sides are welded with top cover handle 3, carry for pressure vessel.Top seal packing ring 4 is rubber gasket.
Test docking port 7 is positioned on pressure vessel bucket wall, has three, the distribution of 120 °, circumferential interval, and is uniformly distributed at axial stratification.Test docking port 7 is horn-like, and be welded on pressure vessel bucket wall, lower outer diameter is 130mm, and top external diameter is 40mm, thickness is 5mm, is highly 100mm, has plain flange 8 on top, and plain flange 8 external diameter is 80mm, thickness is 6-8mm, has four holes, in order to erection bolt at 60mm diameter place.Pressure test can be carried out to 3 detector set components with this simultaneously, improve test efficiency, not need the test docking port 7 used can use blind plate shutoff.
Valve 6 is welded on the axial centre position of pressure vessel main body 9, and length is 50mm, for suppressing.
During work, as shown in Figure 4, by detector naked cable 11 through test docking port 7, turn and be put in pressure vessel bucket.Plain flange, installs docking port packing washer 12 between flange face, and flange is tightened by 4 bolt docking, and the test docking port 7 do not used uses blind plate shutoff, is suppressed by valve 6, then carries out gas pressure test to detector set component 10.
Claims (7)
1. for a pressure vessel for monitoring detector gas pressure test of reloading, it is characterized in that: this device comprises pressure vessel main body (9), the pressure vessels top cover (1) be connected with pressure vessel main body (9), the blowdown valve (2) be positioned on pressure vessels top cover (1), is positioned at some test docking ports (7) of pressure vessel main body side, is positioned at the valve (6) of pressure vessel main body side.
2. according to a kind of pressure vessel for monitoring detector gas pressure test of reloading according to claim 1, it is characterized in that: described pressure vessel main body (9) is for barrel-shaped.
3. according to a kind of pressure vessel for monitoring detector gas pressure test of reloading according to claim 2, it is characterized in that: described test docking port (7) has 3, be uniformly distributed along 120 °, the circumferential interval of pressure vessel main body (9), and test docking port (7) is uniformly distributed at axial stratification.
4. according to a kind of pressure vessel for monitoring detector gas pressure test of reloading described in claim 1 or 2 or 3, it is characterized in that: described test docking port (7) is hollow vertebra platform, bottom is connected to described pressure vessel main body (9), internal diameter is 120mm, top is connected to plain flange (8), and internal diameter is 30mm.
5. according to a kind of pressure vessel for monitoring detector gas pressure test of reloading according to claim 1, it is characterized in that: described pressure vessels top cover (1) is fixedly connected with two top cover handles (3).
6. according to a kind of pressure vessel for monitoring detector gas pressure test of reloading according to claim 5, it is characterized in that: described blowdown valve (2) is positioned at pressure vessels top cover (1) center.
7. according to a kind of pressure vessel for monitoring detector gas pressure test of reloading according to claim 1, it is characterized in that: in the middle of pressure vessel main body (9) and pressure vessels top cover (1), have top seal packing ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078672.4A CN104897343A (en) | 2014-03-05 | 2014-03-05 | Pressure container used for air pressure test of refueling monitoring detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410078672.4A CN104897343A (en) | 2014-03-05 | 2014-03-05 | Pressure container used for air pressure test of refueling monitoring detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104897343A true CN104897343A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410078672.4A Pending CN104897343A (en) | 2014-03-05 | 2014-03-05 | Pressure container used for air pressure test of refueling monitoring detector |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126223A (en) * | 1983-01-07 | 1984-07-20 | Showa Kiki Kogyo Kk | Pressure resistance inspection mechanism for piping of underground tank at filling station |
| CN2169134Y (en) * | 1993-02-26 | 1994-06-15 | 龙口市产品质量监督检验所 | Hydraulic measuring unit for plastic pipe |
| US6279382B1 (en) * | 1998-02-10 | 2001-08-28 | Nec Corporation | Sealed vessel and method of testing the same |
| CN201434753Y (en) * | 2009-04-28 | 2010-03-31 | 中国石油集团西部钻探工程有限公司吐哈钻井公司 | Pressure testing tool for self sealed pipe joints |
| CN202330180U (en) * | 2011-12-06 | 2012-07-11 | 江苏中核利柏特股份有限公司 | Pressure test device |
| CN203432755U (en) * | 2013-07-31 | 2014-02-12 | 山东中泰阳光电气科技有限公司 | Explosion-proof valve sealing detection auxiliary apparatus |
| CN203798503U (en) * | 2014-03-05 | 2014-08-27 | 江苏核电有限公司 | Pressure container used for air pressure test of refueling monitoring detector |
-
2014
- 2014-03-05 CN CN201410078672.4A patent/CN104897343A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59126223A (en) * | 1983-01-07 | 1984-07-20 | Showa Kiki Kogyo Kk | Pressure resistance inspection mechanism for piping of underground tank at filling station |
| CN2169134Y (en) * | 1993-02-26 | 1994-06-15 | 龙口市产品质量监督检验所 | Hydraulic measuring unit for plastic pipe |
| US6279382B1 (en) * | 1998-02-10 | 2001-08-28 | Nec Corporation | Sealed vessel and method of testing the same |
| CN201434753Y (en) * | 2009-04-28 | 2010-03-31 | 中国石油集团西部钻探工程有限公司吐哈钻井公司 | Pressure testing tool for self sealed pipe joints |
| CN202330180U (en) * | 2011-12-06 | 2012-07-11 | 江苏中核利柏特股份有限公司 | Pressure test device |
| CN203432755U (en) * | 2013-07-31 | 2014-02-12 | 山东中泰阳光电气科技有限公司 | Explosion-proof valve sealing detection auxiliary apparatus |
| CN203798503U (en) * | 2014-03-05 | 2014-08-27 | 江苏核电有限公司 | Pressure container used for air pressure test of refueling monitoring detector |
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Application publication date: 20150909 |