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Maintenance tool for nuclear-grade electric ball valve

An electric ball valve and tooling technology, applied in workpiece clamping devices, manufacturing tools, etc., can solve problems such as high requirements for personnel collaboration and workability, and achieve the effect of saving the number of operators, solving small space, and preventing over-torque damage.

Active Publication Date: 2022-02-15
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the maintenance tool for the existing nuclear electric ball valve requires the maintenance personnel to maintain a state of continuous application of force for a long time, which requires high coordination and workability of personnel, and the purpose is to provide a maintenance tool for the nuclear electric ball valve Tooling to solve the above problems

Method used

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  • Maintenance tool for nuclear-grade electric ball valve
  • Maintenance tool for nuclear-grade electric ball valve
  • Maintenance tool for nuclear-grade electric ball valve

Examples

Experimental program
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Effect test

Embodiment

[0047] A maintenance tool for nuclear-grade electric ball valves, including:

[0048] Fixing mechanism, the fixing mechanism is fixedly connected to the valve seat of the electric ball valve;

[0049] The base 3 is fixed on the fixing mechanism;

[0050] Rotary mechanism, the rotary mechanism is rotatably connected to the base 3, the rotary mechanism includes:

[0051] The rotating part 4 is used to drive the adjusting rod 5 of the electric ball valve to rotate when rotating;

[0052] Locking mechanism, the locking mechanism is arranged on the base 3, and the locking mechanism includes:

[0053] The locking member 6 is used to lock the rotating member 4 so that the rotating member 4 stops rotating;

[0054] A locking drive assembly, the locking drive assembly is connected to the locking member 6, and is used to drive the locking member 6 to be inserted into the rotating member 4 to form a locked state;

[0055] Wherein, when the rotating member 4 rotates in the first direc...

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Abstract

A maintenance tool for a nuclear-grade electric ball valve, disclosed by the present invention, comprises a fixing mechanism which is fixedly connected with a valve seat of the electric ball valve; a base which is fixedly arranged on the fixing mechanism; a rotating mechanism which is rotationally connected to the base and comprises a rotating piece used for driving an adjusting rod of the electric ball valve to rotate during rotation; a locking mechanism which is arranged on the base and comprises a locking piece used for locking the rotating piece so as to enable the rotating piece to stop rotating; and a locking driving assembly which is connected to the locking piece and is used for driving the locking piece to be inserted into the rotating piece to form a locked state, wherein when the rotating piece rotates, the adjusting rod of the electric ball valve is driven to rotate, so that a gap between a valve seat sealing ring of the electric ball valve and a ball body of the electric ball valve is changed, and the locking driving assembly drives the locking piece to be inserted into the rotating piece so as to enable the rotating piece to stop rotating. According to the invention, the precision, stability and coordination of adjustment are improved.

Description

technical field [0001] The invention relates to the technical field of valves in the nuclear power industry, in particular to a maintenance tool for nuclear electric ball valves. Background technique [0002] The electric ball valve standard GB / T21465-2008 "Valve Terminology" is defined as: a valve whose opening and closing member (ball) is driven by the valve stem and rotates around the axis of the valve stem. For the fixed ball ball valve in the electric ball valve, the ball of the ball valve is fixed and does not move after being pressurized. After the ball is subjected to medium pressure, the valve seat moves under the pressure of the spring plate, so that the seat sealing ring is pressed tightly on the ball. on to ensure a tight seal. [0003] At present, general-purpose tools are mainly used for the maintenance of electric ball valves. The traditional working method for adjusting the adjustment rods of nuclear-grade electric ball valves is: use a universal wrench and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B11/00
CPCB25B11/00Y02E30/30
Inventor 居文华苏志伟王宇张雨果唐坤林谢小明赵占奎施勇希黄仁忠刘明洪彭智勇石泰珲
Owner NUCLEAR POWER INSTITUTE OF CHINA
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