CN219038318U

CN219038318U - Online sealing test tool for gate valve of nuclear power plant

Info

Publication number: CN219038318U
Application number: CN202223279026.3U
Authority: CN
Inventors: 於豪; 关勇; 程志远; 付鹏程; 张勇; 谢光炜; 王祥; 梁智勇; 陈红; 王伟; 石雪峰
Original assignee: CNNC Fujian Nuclear Power Co Ltd
Current assignee: CNNC Fujian Nuclear Power Co Ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-16
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to the field of detection of gate valves of nuclear power plants, in particular to an online sealing test tool for a gate valve of a nuclear power plant. The online sealing test tool for the gate valve of the nuclear power plant comprises: the automatic valve comprises a bedplate, wherein an adjusting groove is formed in the front side of the top surface of the bedplate, a supporting and adjusting component is arranged in the adjusting groove, an inflation detection component is arranged on the rear side of the top surface of the bedplate, and a gate valve main body is arranged above the supporting and adjusting component. The utility model has the advantages of convenient and quick detection.

Description

Online sealing test tool for gate valve of nuclear power plant

Technical Field

The utility model relates to the field of detection of gate valves of nuclear power plants, in particular to an online sealing test tool for a gate valve of a nuclear power plant.

Background

The gate valve of the nuclear power plant is more in use, has higher requirements on leakage rate and one-time maintenance success rate, is an important valve in the power plant, and needs to detect the tightness of the gate valve when the gate valve of the nuclear power plant is used at present, but the existing detection method and test tool are not convenient and quick enough when in detection.

There is therefore a need for an online sealing test tool for a nuclear power plant gate valve that ameliorates the above-described problems.

Disclosure of Invention

The utility model aims to solve the technical problems that: the online sealing test tool for the gate valve of the nuclear power plant is convenient and quick to detect.

The utility model provides an online sealing test tool for a gate valve of a nuclear power plant, which comprises the following components:

the automatic valve comprises a bedplate, wherein an adjusting groove is formed in the front side of the top surface of the bedplate, a supporting and adjusting component is arranged in the adjusting groove, an inflation detection component is arranged on the rear side of the top surface of the bedplate, and a gate valve main body is arranged above the supporting and adjusting component.

Preferably, the support adjusting component comprises a threaded rod arranged inside the adjusting groove, a threaded sliding sleeve is sleeved on the outer wall of the threaded rod, a supporting seat is arranged on the upper side of the threaded sliding sleeve, a vertical rod is arranged at the top of the supporting seat, a bracket is arranged on the upper side of the vertical rod, and a rotary table is arranged at the positive end of the threaded rod.

Preferably, the top of the supporting seat is symmetrically provided with upright rods.

Preferably, the bracket is arc-shaped and is matched with the main body of the gate valve.

Preferably, the threaded sliding sleeve is connected with the threaded rod in a threaded manner.

Preferably, the threaded sliding sleeve is located inside the adjusting groove, and the threaded sliding sleeve is connected with the adjusting groove in a sliding manner.

Preferably, the threaded rod is connected with the adjusting groove in a rotating way.

Preferably, the inflation detection assembly comprises an inflator arranged at the rear side of the top surface of the bedplate, a gas pipe is arranged on the front surface of the inflator, a barometer is arranged at the positive end of the gas pipe, and a connecting pipe is arranged at the positive end of the barometer.

Preferably, the connecting structure of the connecting pipe and the gate valve main body is detachably connected through threads.

Compared with the prior art, the online sealing test tool for the gate valve of the nuclear power plant comprises a support adjusting assembly and an inflation detection assembly. The gas can be conveyed to the inside of the gate valve main body through the inflation detection assembly, and the air pressure of the conveyed gas can be displayed, so that when the gate valve main body is closed, if the displayed air pressure is unchanged, the sealing performance of the gate valve main body is good, otherwise, the sealing performance of the gate valve main body is poor, and further the sealing performance of the gate valve can be conveniently detected; and the support adjusting component can be used for supporting the gate valve main body from the lower part of the gate valve main body without holding the gate valve, so that the tightness test of the gate valve is easier.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an online sealing test tool for a gate valve of a nuclear power plant;

FIG. 2 is a schematic view of a support adjustment assembly;

FIG. 3 is a schematic diagram of an inflation detection assembly;

in the figure:

1. a platen; 2. an adjustment tank; 3. a support adjustment assembly; 4. an inflation detection assembly; 5. a gate valve body; 301. a threaded rod; 302. a threaded sliding sleeve; 303. a support base; 304. a vertical rod; 305. a bracket; 306. a turntable; 401. an inflator; 402. a gas pipe; 403. an air pressure gauge; 404. and (5) connecting pipes.

Detailed Description

For a further understanding of the present utility model, embodiments of the utility model are described below in conjunction with the examples, but it should be understood that these descriptions are merely intended to illustrate further features and advantages of the utility model, and are not limiting of the utility model.

Referring to fig. 1-3, the present utility model provides an online sealing test tool for a gate valve of a nuclear power plant, comprising:

the automatic valve comprises a bedplate 1, wherein an adjusting groove 2 is formed in the front side of the top surface of the bedplate 1, a supporting and adjusting component 3 is arranged in the adjusting groove 2, an inflation detection component 4 is arranged on the rear side of the top surface of the bedplate 1, and a gate valve main body 5 is arranged above the supporting and adjusting component 3;

in this embodiment, referring to fig. 1-3, the support adjusting assembly 3 includes a threaded rod 301 disposed inside an adjusting tank 2, a threaded sliding sleeve 302 is sleeved on an outer wall of the threaded rod 301, a supporting seat 303 is disposed on an upper side of the threaded sliding sleeve 302, a vertical rod 304 is disposed symmetrically on a top of the supporting seat 303, a bracket 305 is disposed on an upper side of the vertical rod 304, a turntable 306 is disposed at a positive end of the threaded rod 301, a gate valve body 5 is disposed above the bracket 305, the bracket 305 is adapted to the gate valve body 5, the threaded rod 301 is connected with the adjusting tank 2 in a rotating manner, the threaded sliding sleeve 302 is connected with the threaded rod 301 in a threaded manner, the threaded sliding sleeve 302 is disposed inside the adjusting tank 2, and the threaded sliding sleeve 302 is connected with the adjusting tank 2 in a sliding manner, the inflation detecting assembly 4 includes an inflator 401 disposed on a rear side of a top surface of the platen 1, the front of the inflator 401 is provided with a gas pipe 402, the positive end of the gas pipe 402 is provided with a barometer 403, the positive end of the barometer 403 is provided with a connecting pipe 404, the connecting structure of the connecting pipe 404 and the gate valve main body 5 is in threaded detachable connection, gas can be conveyed to the inside of the gate valve main body 5 through an inflation detection assembly 4 arranged in a nuclear power plant gate valve online seal test tool, and the air pressure of the conveying gas can be displayed, so that when the gate valve main body 5 is closed, if the displayed air pressure is unchanged, the sealing performance of the gate valve main body 5 is good, otherwise, the sealing performance of the gate valve main body 5 is poor, further the sealing performance of the gate valve can be conveniently detected, and the arranged support adjustment assembly 3 can lift the gate valve main body 5 from the lower part of the gate valve main body without using a hand-held gate valve, so that the sealing performance test of the gate valve is easier.

The working flow of the utility model is as follows: when the on-line sealing test tool for the sluice valve of the nuclear power plant is used, the sluice valve main body 5 is firstly connected with the connecting pipe 404, then the rotary table 306 drives the threaded rod 301 to rotate, at this time, the threaded sliding sleeve 302 slides in the regulating groove 2, thereby driving the supporting seat 303, the vertical rod 304 and the bracket 305 to move towards the sluice valve main body 5, when the bracket 305 reaches the lower part of the sluice valve main body 5, then the sluice valve main body 5 is placed on the bracket 305, then the inflator 401 is started, then the gas is filled into the sluice valve main body 5 through the gas pipe 402 and the connecting pipe 404, then the sluice valve main body 5 is closed, at this time, the gas is retained in the gas pipe 402 and the connecting pipe 404, the gas pressure gauge 403 can display the gas pressure in the pipe, the inflator 401 is closed after the gas pressure reaches a certain value, finally the value of the gas pressure gauge 403 is observed, at this time, the tightness of the sluice valve main body 5 is not good, if the value of the gas pressure gauge 403 is gradually reduced, the tightness of the sluice valve main body 5 is indicated, the sluice valve main body 5 is not good, the inside the sluice valve main body 5 can be conveyed through the gas detection assembly 4 arranged in the on-line sealing test tool, the sluice valve main body 5 is further, the inner part of the sluice valve main body 5 can be conveyed, and the sluice valve main body 5 can not be further conveniently, the tightness is further, the sluice valve main body can be conveniently detected, and the sluice valve main body can be further conveniently is further conveniently, the sluice valve is not sealed, and the sluice valve is further conveniently sealed.

The above description of the embodiments is only for aiding in the understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An online sealing test tool for a gate valve of a nuclear power plant, which is characterized by comprising:

the automatic valve comprises a bedplate (1), wherein an adjusting groove (2) is formed in the front side of the top surface of the bedplate (1), a supporting and adjusting component (3) is arranged in the adjusting groove (2), an inflation detecting component (4) is arranged on the rear side of the top surface of the bedplate (1), and a gate valve main body (5) is arranged above the supporting and adjusting component (3).

2. The online sealing test tool for the gate valve of the nuclear power plant according to claim 1, wherein the supporting and adjusting assembly (3) comprises a threaded rod (301) arranged inside the adjusting groove (2), a threaded sliding sleeve (302) is sleeved on the outer wall of the threaded rod (301), a supporting seat (303) is arranged on the upper side of the threaded sliding sleeve (302), a vertical rod (304) is arranged on the top of the supporting seat (303), a bracket (305) is arranged on the upper side of the vertical rod (304), and a rotary table (306) is arranged at the positive end of the threaded rod (301).

3. The online sealing test tool for the gate valve of the nuclear power plant according to claim 2, wherein upright rods (304) are symmetrically arranged on the top of the supporting seat (303).

4. The tool for on-line sealing test of a gate valve of a nuclear power plant according to claim 2, wherein the bracket (305) is arc-shaped and is adapted to the gate valve body (5).

5. The online sealing test tool for a gate valve of a nuclear power plant according to claim 2, wherein the threaded sliding sleeve (302) is connected with the threaded rod (301) in a threaded manner.

6. The online sealing test tool for the gate valve of the nuclear power plant according to claim 2, wherein the threaded sliding sleeve (302) is positioned in the adjusting groove (2), and the threaded sliding sleeve (302) is connected with the adjusting groove (2) in a sliding manner.

7. The online sealing test tool for a gate valve of a nuclear power plant according to claim 2, wherein the threaded rod (301) is connected with the adjusting groove (2) in a rotating manner.

8. The on-line sealing test tool for a gate valve of a nuclear power plant according to claim 1, wherein the inflation detection assembly (4) comprises an inflator (401) arranged at the rear side of the top surface of the bedplate (1), a gas pipe (402) is arranged on the front surface of the inflator (401), a barometer (403) is arranged at the positive end of the gas pipe (402), and a connecting pipe (404) is arranged at the positive end of the barometer (403).

9. The on-line sealing test tool for a gate valve of a nuclear power plant according to claim 8, wherein the connecting structure of the connecting pipe (404) and the gate valve main body (5) is a screw-thread detachable connection.