CN203798503U - 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 PDF

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Publication number
CN203798503U
CN203798503U CN201420098411.4U CN201420098411U CN203798503U CN 203798503 U CN203798503 U CN 203798503U CN 201420098411 U CN201420098411 U CN 201420098411U CN 203798503 U CN203798503 U CN 203798503U
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China
Prior art keywords
pressure
test
pressure vessel
pressure container
cover
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Active
Application number
CN201420098411.4U
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Chinese (zh)
Inventor
徐霞军
涂彩清
眭海军
马孝龙
尹江辉
徐东
张琪
孙勇
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Jiangsu Nuclear Power Corp
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Jiangsu Nuclear Power Corp
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Priority to CN201420098411.4U priority Critical patent/CN203798503U/en
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Publication of CN203798503U publication Critical patent/CN203798503U/en
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Abstract

The utility model belongs to a pressure container, and particularly discloses a pressure container used for air pressure tests 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 abutting connectors arranged on one side surface of the pressure container main body, and an air faucet arranged on one side surface of the pressure container main body. The pressure container can keep good sealing performance under the air pressure of 1Mpa, can satisfy the requirement on pressure of the test, occupies small space, simplifies the test process, can carry out air pressure tests on an assembling unit of 3 detectors, shortens the total pressure test time by 2/3 of the original, and improves the test efficiency. By changing the structure and size of the pressure container and the abutting connectors, the scheme of the pressure container can be adapt to the air pressure tests of similar equipment.

Description

A kind of pressure vessel for the monitoring detector gas pressure test of reloading
Technical field
The utility model relates to a kind of pressure vessel, is specifically related to the reload pressure vessel of monitoring detector subassembly gas pressure test of a kind of nuclear power station.
Background technology
During the monitoring detector that reloads reloads for nuclear power station reactor core, the monitoring of neutron flux, is arranged in the duct of core baffle, and detector is among a circuit cools agent (BAS).In order to prevent detector water inlet, and the corrosion of boric acid to detector and signal cable, Sealed casing pipe designed.Sealed casing pipe is divided into two parts, probe segment and flexible pipe part, and probe segment is used for containing detector body, and flexible pipe partly enters the part of water for containing detector signal cable, and the 4 meters of long naked cables of also having an appointment do not need into water unsealing sleeve pipe.Detector set becomes a complete detector set component among installing to Sealed casing pipe.
Detector set component needs to carry out the gas pressure test of 0.13Mpa before coming into operation, check assembly seals.The pressure vessel of existing gas pressure test is a steel pipe that is about 4.5 meters.Welding valve in steel pipe one end is 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, 4 meters of long naked cables of detector stretch in pressure vessel steel conduit.
The pressure vessel of existing gas pressure test has the shortcoming of 3 aspects in using: the first, and 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, so before gas pressure test, need to dismantle cable plug, after off-test, weld back again attaching plug, more complicated; The 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 need to be carried out 6 times.
Summary of the invention
The technical problems to be solved in the utility model is to provide the reload pressure vessel of monitoring detector subassembly gas pressure test of a kind of nuclear power station, in order to detector set component is carried out to gas pressure test.
In order to solve the problems of the technologies described above, a kind of pressure vessel for the monitoring detector gas pressure test of reloading of the utility model, this device comprises pressure vessel main body, the pressure vessels top cover being connected with pressure vessel main body, be positioned at blowdown valve on pressure vessels top cover, be positioned at pressure vessel main body side some test docking ports, be 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 120 °, the circumferential interval of pressure vessel main body.
Described test docking port is hollow vertebra platform, and bottom is connected in described pressure vessel main body, and internal diameter is 120mm, and top is connected in plain flange, and internal diameter is 30mm.
On described pressure vessels top cover, be fixedly connected with two top cover handles.
Described blowdown valve is positioned at pressure vessels top cover center.
In the middle of pressure vessel main body and pressure vessels top cover, there is top seal packing ring.
A kind of pressure vessel for the monitoring detector gas pressure test of reloading of the present utility model can guarantee good sealing below 1Mpa air pressure, can meet the requirement of test to pressure, and place takies little, short form test process, can to 3 detector set components, carry out gas pressure test simultaneously, total pressure test time shorten, to original 1/3rd, has been improved to 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 the monitoring detector gas pressure test of reloading of the present utility model.
Fig. 2 is a kind of pressure vessel right view for the monitoring detector gas pressure test of reloading of the present utility model.
Fig. 3 is a kind of pressure vessel vertical view for the monitoring detector gas pressure test of reloading of the present utility model.
Fig. 4 is a kind of pressure vessel shop drawing for the monitoring detector gas pressure test of reloading of the present utility model.
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 utility model 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 steels, and there is larger cavity volume pressure vessel inside, detector naked cable can be turned and is put into, and reduces place and takies, and this cavity volume also can be placed other equipment that need to carry out gas pressure test.The high 400mm of this pressure vessel main body 9, diameter 400mm, sidewall thickness is 5mm, bottom thickness is 8-10mm, annulus is arranged at top, and external diameter is 488mm, is circumferentially uniformly distributed 8 through holes above, 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 tops, in pressure vessels top cover 1 corresponding positions, is equipped with 8 through holes, in the middle of pressure vessel main body 9 and pressure vessels top cover 1, there is top seal packing ring 4, by bolt 5, connect.There is blowdown valve 2 at pressure vessels top cover center, and blowdown valve 2 both sides are welded with top cover handle 3, for pressure vessel, carry.Top seal packing ring 4 is rubber gasket.
Test docking port 7 is positioned on pressure vessel bucket wall, has three, circumferentially 120 °, interval distribution, and be uniformly distributed at axial stratification.Test docking port 7 is horn-like, is welded on pressure vessel bucket wall, and 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 diameters are 80mm, thickness is 6-8mm, has four holes, in order to erection bolt at 60mm diameter place.With this, can to 3 detector set components, carry out pressure test simultaneously, improve test efficiency, not need the test docking port 7 using 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, detector naked cable 11, through test docking port 7, is turned and is put in pressure vessel bucket.Plain flange is installed docking port packing washer 12 between flange face, and flange is tightened by 4 bolt docking, and obsolete test docking port 7 is used blind plate shutoff, by valve 6, suppresses, and then detector set component 10 is carried out to gas pressure test.

Claims (7)

1. for a pressure vessel for the 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) being connected with pressure vessel main body (9), be positioned at blowdown valve (2) on pressure vessels top cover (1), be positioned at pressure vessel main body side some test docking ports (7), be positioned at the valve (6) of pressure vessel main body side.
2. according to a kind of pressure vessel for the monitoring detector gas pressure test of reloading claimed in 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 the monitoring detector gas pressure test of reloading claimed in claim 2, it is characterized in that: described test docking port (7) has 3, along 120 °, the circumferential interval of pressure vessel main body (9), be uniformly distributed, and test docking port (7) is uniformly distributed at axial stratification.
4. according to a kind of pressure vessel for the 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 in described pressure vessel main body (9), internal diameter is 120mm, top is connected in plain flange (8), and internal diameter is 30mm.
5. according to a kind of pressure vessel for the monitoring detector gas pressure test of reloading claimed in claim 1, it is characterized in that: on described pressure vessels top cover (1), be fixedly connected with two top cover handles (3).
6. according to a kind of pressure vessel for the monitoring detector gas pressure test of reloading claimed in 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 the monitoring detector gas pressure test of reloading claimed in 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).
CN201420098411.4U 2014-03-05 2014-03-05 Pressure container used for air pressure test of refueling monitoring detector Active CN203798503U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420098411.4U CN203798503U (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
CN201420098411.4U CN203798503U (en) 2014-03-05 2014-03-05 Pressure container used for air pressure test of refueling monitoring detector

Publications (1)

Publication Number Publication Date
CN203798503U true CN203798503U (en) 2014-08-27

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CN201420098411.4U Active CN203798503U (en) 2014-03-05 2014-03-05 Pressure container used for air pressure test of refueling monitoring detector

Country Status (1)

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CN (1) CN203798503U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897343A (en) * 2014-03-05 2015-09-09 江苏核电有限公司 Pressure container used for air pressure test of refueling monitoring detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104897343A (en) * 2014-03-05 2015-09-09 江苏核电有限公司 Pressure container used for air pressure test of refueling monitoring detector

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