CN216816000U - Special gasket test device of pilot operated safety valve - Google Patents
Special gasket test device of pilot operated safety valve Download PDFInfo
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- CN216816000U CN216816000U CN202122502060.1U CN202122502060U CN216816000U CN 216816000 U CN216816000 U CN 216816000U CN 202122502060 U CN202122502060 U CN 202122502060U CN 216816000 U CN216816000 U CN 216816000U
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- adapter
- connecting pipe
- safety valve
- pilot operated
- gasket
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Abstract
The utility model belongs to the field of nuclear power overhaul, and particularly relates to a special gasket test device for a pilot operated safety valve. Including the analog body, the top of the analog body be connected with the adapter, the shaft-like part overcoat of adapter is equipped with the joint, open in the middle of the shaft-like part of adapter has the through-hole, it has the through-hole to connect to open, inside is opened there is cylindrical cavity, the part that the shaft-like part of adapter is located the cylindrical cavity that connects is opened there is horizontal through-hole, the top of adapter is connected with the connecting pipe, the connecting pipe is connected with discharge valve, the side of the analog body is connected with experimental connecting pipe, experimental connecting pipe is connected with test device, still be connected with pressure transmitter on the experimental connecting pipe, pressure transmitter passes through the wire and connects the pressure display. The beneficial effects are that: the compression performance, the sealing performance and the vacuum sealing performance of the gasket special for the pilot operated safety valve can be measured.
Description
Technical Field
The utility model belongs to the field of nuclear power overhaul, and particularly relates to a special gasket test device for a pilot operated safety valve.
Background
The pressure stabilizer safety valve is used as a loop pressure boundary of a pressurized water reactor nuclear power plant, is sealed for main coolant, prevents system overpressure, and guarantees sealing, so that the compression and sealing performance of a valve sealing gasket have very important functions.
The special sealing gasket is composed of an inner metal ring, an outer metal ring and an intermediate rubber part, wherein when the gasket is compressed, the rubber part is compressed to form effective sealing, the outer ring is fixed, and the inner ring keeps the deformation of the rubber part.
The device mainly verifies the compression performance, the sealing performance and the vacuum sealing performance of a special gasket, and ensures the reliability of the gasket.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a special gasket test device for a pilot operated safety valve, which can verify the compression amount, the sealing performance and the vacuum sealing performance of the special gasket test device for the pilot operated safety valve.
The technical scheme of the utility model is as follows: the utility model provides a peculiar gasket test device of guide's formula relief valve, includes the analog body, the top of the analog body be connected with the adapter, the shaft-like part overcoat of adapter is equipped with the joint, open in the middle of the shaft-like part of adapter has the through-hole, it has the through-hole to connect to open, inside is opened there is cylindrical cavity, the part that the shaft-like part of adapter is located the cylindrical cavity that connects is opened there is horizontal through-hole, the top of adapter is connected with the connecting pipe, the connecting pipe is connected with discharge valve, the side of the analog body is connected with experimental connecting pipe, experimental connecting pipe is connected with testing arrangement, still be connected with pressure transmitter on the experimental connecting pipe, pressure transmitter passes through wire connection pressure display.
The rod-shaped portion of adapter and the upper portion that connects be provided with first gasket.
And a second gasket is arranged on the rod-shaped part of the adapter and the lower part of the joint.
The top of the simulation body is connected with a bolt-shaped adapter through threads.
The adapter is of a bolt-shaped structure.
The distance between the joint and the adapter is L1.
The distance between the joint and the simulation body is L2.
The side of the simulation body is connected with a test connecting pipe through threads.
The part of the rod-shaped part of the adapter, which is positioned in the columnar cavity of the adapter, is provided with a horizontal through hole which is vertical to the middle through hole.
The top of adapter pass through threaded connection and have the connecting pipe.
The utility model has the beneficial effects that: the compression performance, the sealing performance and the vacuum sealing performance of the special gasket of the pilot operated safety valve can be measured, and the method is used for testing and measuring a formed product in the implementation process of a localization project, comparing the test and measurement with original factory spare parts and evaluating the sealing effect of the localization spare parts.
Drawings
FIG. 1 is a schematic view of a gasket seal;
fig. 2 is a schematic structural diagram of a gasket testing apparatus specific to a pilot operated safety valve provided in the present invention.
In the figure: the test device comprises a simulation body 1, a joint 2, a first gasket 3, a joint 4, a connecting pipe 5, an exhaust valve 6, a second gasket 7, a test connecting pipe 8, a pressure transmitter 9, a wire 10, a pressure display 11, a test device 12, a metal outer ring 21, a rubber part 22 and a C-shaped metal ring 23 in the inner layer.
Detailed Description
The utility model is described in further detail below with reference to the figures and the embodiments.
The utility model provides a peculiar gasket test device of guide's formula relief valve, includes analog body 1, connects 2, first gasket 3, adapter 4, connecting pipe 5, discharge valve 6, second gasket 7, experimental connecting pipe 8, pressure transmitter 9, wire 10, pressure display 11 and testing arrangement 12.
As shown in fig. 1, a bolt-shaped adapter 4 is connected to the top of the simulator 1 through a screw thread, a connector 2 is sleeved outside a rod-shaped part of the adapter 4, a first gasket 3 and a second gasket 7 are respectively arranged between the rod-shaped part of the adapter 4 and the upper part and the lower part of the connector 2, the distance between the connector 2 and the adapter 4 is L1, the distance between the connector 2 and the simulator 1 is L2, a through hole is formed in the middle of the rod-shaped part of the adapter 4, a through hole is formed in the connector 2, a columnar cavity is formed in the connector 2, a horizontal through hole perpendicular to the middle through hole is formed in the columnar cavity of the connector 4, a connecting pipe 5 is connected to the top of the adapter 4, an exhaust valve 6 is connected to the connecting pipe 5, a test connecting pipe 8 is connected to the side of the simulator 1 through a screw thread, the test connecting pipe 8 is connected to a test device 12, a pressure transmitter 9 is further connected to the test connecting pipe 8, the pressure transmitter 9 is connected to a pressure display 11 via a line 10.
The using process of the utility model is as follows:
compression test:
(1) mounting the first gasket 3, the second gasket 7, the joint 2 and the adapter 4 on the simulation body 1;
(2) fastening the adapter 4, and continuously increasing the torque from 5Nm to 70Nm, wherein the torque value is increased by 10-15Nm each time;
(3) the gap values L1 and L2 were recorded separately each time;
(4) and comparing the compression amount of the original spare part and the domestic spare part under the same torque value, thereby judging the availability of the domestic spare part.
And (3) sealing property test:
(1) installing the joint 2, the adapter 4, the first gasket 3 and the second gasket 7 to the simulation body, and fastening with 110Nm torque;
(2) installing an exhaust valve 6;
(3) opening the exhaust valve 6, starting the test device 12 to fill the cavity of the analog body 1 with water, and closing the exhaust valve 6 after continuous water flow exists behind the exhaust valve (6);
(4) using the test device 12 to boost the pressure of the cavity of the simulation body 1 to 172+5 bar; maintaining the pressure for 10 minutes, and observing whether each joint has leakage;
(5) and comparing the original spare parts with the domestic spare parts, and judging whether the original spare parts and the domestic spare parts have leakage under the same test pressure, thereby judging the usability of the domestic spare parts.
Vacuum tightness test:
(1) installing the joint 2, the adapter 4, the first gasket 3 and the second gasket 7 to the simulation body, and fastening with 110Nm torque;
(2) installing an exhaust valve 6;
(3) opening the exhaust valve 6, starting the test device 12) to fill the cavity of the analog body 1 with water, and closing the exhaust valve 6 after continuous water flow exists behind the exhaust valve 6;
(4) vacuumizing the inside of the simulation body 1 by using a testing device 12 until the pressure display 11 is-1 bar;
(5) stopping vacuumizing, observing for 3 minutes, recording a vacuum pressure value P, and calculating a pressure rise value delta P;
(6) and comparing the vacuum pressure rise values of the original gasket and the domestic spare part, and judging the vacuum sealing effectiveness of the domestic sealing gasket.
Claims (8)
1. The utility model provides a peculiar gasket test device of guide's formula relief valve which characterized in that: including the analog body, the top of the analog body be connected with the adapter, the shaft-like part overcoat of adapter is equipped with the joint, open in the middle of the shaft-like part of adapter has the through-hole, it has the through-hole to connect, inside is opened there is the columnar cavity, the shaft-like part of adapter is located the part of the columnar cavity that connects and is opened there is horizontal through-hole, the top of adapter is connected with the connecting pipe, the connecting pipe is connected with discharge valve, the side of the analog body is connected with experimental connecting pipe, experimental connecting pipe is connected with testing device, still be connected with pressure transmitter on the experimental connecting pipe, pressure transmitter passes through the wire and connects the pressure display.
2. A pilot operated safety valve specific gasket test set according to claim 1, wherein: the rod-shaped portion of adapter and the upper portion that connects be provided with first gasket.
3. A pilot operated safety valve specific gasket test set according to claim 1, wherein: and a second gasket is arranged on the rod-shaped part of the adapter and the lower part of the joint.
4. A pilot operated safety valve specific gasket test set according to claim 1, wherein: the top of the simulation body is connected with a bolt-shaped adapter through threads.
5. A pilot operated safety valve specific gasket test set according to claim 1, wherein: the adapter is of a bolt-shaped structure.
6. A pilot operated safety valve specific gasket test set according to claim 1, wherein: the side of the simulation body is connected with a test connecting pipe through threads.
7. A pilot operated safety valve specific gasket test set according to claim 1, wherein: the part of the rod-shaped part of the adapter, which is positioned in the columnar cavity of the adapter, is provided with a horizontal through hole which is vertical to the through hole.
8. A pilot operated safety valve specific gasket test set according to claim 1, wherein: the top of adapter pass through threaded connection and have the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122502060.1U CN216816000U (en) | 2021-10-18 | 2021-10-18 | Special gasket test device of pilot operated safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122502060.1U CN216816000U (en) | 2021-10-18 | 2021-10-18 | Special gasket test device of pilot operated safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216816000U true CN216816000U (en) | 2022-06-24 |
Family
ID=82047887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122502060.1U Active CN216816000U (en) | 2021-10-18 | 2021-10-18 | Special gasket test device of pilot operated safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216816000U (en) |
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2021
- 2021-10-18 CN CN202122502060.1U patent/CN216816000U/en active Active
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