CN210603733U - Novel special blind plate for valve sealing test of nuclear island ventilation system - Google Patents
Novel special blind plate for valve sealing test of nuclear island ventilation system Download PDFInfo
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- CN210603733U CN210603733U CN201921583285.0U CN201921583285U CN210603733U CN 210603733 U CN210603733 U CN 210603733U CN 201921583285 U CN201921583285 U CN 201921583285U CN 210603733 U CN210603733 U CN 210603733U
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- blind plate
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- nuclear island
- valve
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Abstract
The utility model belongs to the technical field of experimental professional equipment, concretely relates to novel special blind plate of nuclear island ventilation system valve seal test. The main board is hemispherical, the middle of the main board is provided with a pressure port, the outer part of the main board is provided with a flange board, and the flange board is provided with a flange hole. The inner diameter of the main board is the same as the caliber of a valve plate of a valve of the nuclear island ventilation system. The inside of the pressurizing port is G3/8 pipe threads for connecting a pressurizing air source. The flange plate is provided with 28 flange holes which are uniformly distributed for 360 degrees and are used for flange connection with the valve seat. The utility model discloses under the prerequisite of guaranteeing to use the function, through the pattern of construction of optimizing the blind plate, alleviateed the weight of experimental special blind plate, convenience, security when having improved transportation and the experimental special blind plate of installation.
Description
Technical Field
The utility model belongs to the technical field of experimental professional equipment, concretely relates to novel special blind plate of nuclear island ventilation system valve seal test.
Background
When a nuclear power station executes a valve sealing test of a nuclear island ventilation system, a special test blind plate needs to be installed on a flange of a valve seat of the nuclear island ventilation system to serve as a pressurizing point of the valve sealing test, and the valve is pressurized and verified. The valve of the nuclear island ventilation system is a valve with the largest inner aperture of a nuclear island of an M310 nuclear power unit, is used for ventilation of the nuclear island, and has the aperture reaching 914.5mm, and the aperture of a blind plate special for a valve seal test must be matched with the aperture, so that the weight of the blind plate special for the test is larger, the weight of the blind plate special for the traditional test used at present is about 50kg, and the heavier weight affects both material transportation and safety during installation.
Disclosure of Invention
An object of the utility model is to provide a novel special blind plate of nuclear island ventilation system valve seal test compares with the experimental special blind plate of tradition of using at present, and its weight is lighter, has improved convenience, the security of experimental special blind plate transportation and installation.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a novel special blind plate for a valve sealing test of a nuclear island ventilation system is characterized in that a main plate is hemispherical, a pressurizing opening is formed in the middle of the main plate, a flange plate is arranged outside the main plate, and a flange hole is formed in the flange plate.
The inner diameter of the main board is the same as the caliber of a valve plate of a valve of the nuclear island ventilation system.
The inside of the pressurizing port is G3/8 pipe threads for connecting a pressurizing air source.
The flange plate is provided with 28 flange holes which are uniformly distributed for 360 degrees and are used for flange connection with the valve seat.
The diameter of the flange hole is 36 mm.
The blind plate is made of stainless steel and has a thickness of 10 mm.
The utility model discloses the beneficial effect who gains does:
the utility model discloses under the prerequisite of guaranteeing to use the function, through the pattern of construction of optimizing the blind plate, alleviateed the weight of experimental special blind plate, convenience, security when having improved transportation and the experimental special blind plate of installation.
The utility model discloses compare with the experimental special blind plate of traditional that uses at present, change the structural style of mainboard into the hemisphere type by the cylinder type, make the total weight alleviate 33%. And (3) weight comparison:
it can be seen that compared with the conventional special blind plate for the valve sealing test of the novel nuclear island ventilation system, the surface area of the main plate 1 is reduced
Under the same condition that the material quality and the thickness of the main board 1 are not changed, the weight of the blind plate is reduced by 33 percent.
Drawings
Fig. 1 is a top view of a novel special blind plate for a valve sealing test of a nuclear island ventilation system of the utility model;
fig. 2 is a side view of the novel special blind plate for the valve sealing test of the nuclear island ventilation system of the utility model;
fig. 3 and 4 are three-dimensional schematic diagrams of the special blind plate for the valve sealing test of the novel nuclear island ventilation system of the invention;
in the figure: 1-main board, 2-pressurizing port, 3-flange board and 4-flange hole.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the novel special blind plate for the valve sealing test of the nuclear island ventilation system of the utility model has the advantages that the main plate 1 is hemispherical, the inner diameter of the main plate is the same as the caliber of the valve plate of the valve of the nuclear island ventilation system, so that the valve plate of the valve can not touch the special blind plate for the test when the valve is opened in the test process, and the valve plate of the valve is damaged; the middle of the main board 1 is provided with a pressurizing port 2, and the interior of the main board is provided with G3/8 pipe threads for connecting a pressurizing air source; the outside of mainboard 1 is flange plate 3, and it has 28 flange holes 4 to open on the flange plate 3, and its diameter is 36mm, is 360 evenly distributed for with valve seat flange joint.
The test special blind plate is made of stainless steel and has the thickness of 10 mm.
When the test special blind plate is applied and implemented, the test special blind plate comprises the following steps:
s1: aligning 28 flange holes 4 on a blind flange plate 3 special for a valve seal test of the novel nuclear island ventilation system with flange holes of a valve seat of a valve of the nuclear island ventilation system;
s2: inserting screws into the 28 flange holes, and fastening the special test blind plate on a valve seat of a nuclear island ventilation system;
s3: connecting a test connector for connecting a pressurizing air source to the pressurizing port 2;
s4: therefore, the installation of the special test blind plate for the pressurization of the valve sealing test is completed, and the valve sealing can be pressurized and verified through the pressurizing air source.
Claims (6)
1. The utility model provides a novel special blind plate of nuclear island ventilation system valve seal test which characterized in that: the main board is hemispherical, the middle of the main board is provided with a pressure port, the outer part of the main board is provided with a flange board, and the flange board is provided with a flange hole.
2. The novel special blind plate for the valve seal test of the nuclear island ventilation system, according to claim 1, is characterized in that: the inner diameter of the main board is the same as the caliber of a valve plate of a valve of the nuclear island ventilation system.
3. The novel special blind plate for the valve seal test of the nuclear island ventilation system, according to claim 1, is characterized in that: the inside of the pressurizing port is G3/8 pipe threads for connecting a pressurizing air source.
4. The novel special blind plate for the valve seal test of the nuclear island ventilation system, according to claim 1, is characterized in that: the flange plate is provided with 28 flange holes which are uniformly distributed for 360 degrees and are used for flange connection with the valve seat.
5. The novel special blind plate for the valve seal test of the nuclear island ventilation system, according to claim 1, is characterized in that: the diameter of the flange hole is 36 mm.
6. The novel special blind plate for the valve seal test of the nuclear island ventilation system, according to claim 1, is characterized in that: the blind plate is made of stainless steel and has a thickness of 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583285.0U CN210603733U (en) | 2019-09-23 | 2019-09-23 | Novel special blind plate for valve sealing test of nuclear island ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583285.0U CN210603733U (en) | 2019-09-23 | 2019-09-23 | Novel special blind plate for valve sealing test of nuclear island ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210603733U true CN210603733U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921583285.0U Active CN210603733U (en) | 2019-09-23 | 2019-09-23 | Novel special blind plate for valve sealing test of nuclear island ventilation system |
Country Status (1)
| Country | Link |
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| CN (1) | CN210603733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129471A (en) * | 2020-09-04 | 2020-12-25 | 中核核电运行管理有限公司 | Sealing test device for check valve |
-
2019
- 2019-09-23 CN CN201921583285.0U patent/CN210603733U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129471A (en) * | 2020-09-04 | 2020-12-25 | 中核核电运行管理有限公司 | Sealing test device for check valve |
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