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Electric measurement and control device and method suitable for manual valve action test

A manual valve, measurement and control device technology, applied in measuring devices, mechanical valve testing, instruments, etc., can solve the problems of step change in torque, poor versatility, etc., and achieve the effects of low cost, reasonable design and convenient operation

Active Publication Date: 2021-07-30
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an electric measurement and control device suitable for manual valve action test, which solves the problem of poor versatility of the existing valve test electric control technology, and the torque can change step by step during operation

Method used

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  • Electric measurement and control device and method suitable for manual valve action test
  • Electric measurement and control device and method suitable for manual valve action test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 , figure 2 As shown, an electric measurement and control device suitable for manual valve action test, including a housing 4, a control mechanism 1 and a fixture 6;

[0053] The housing 4 is provided with a drive mechanism 2, a stroke detection mechanism 3 and a variable torque control mechanism 5;

[0054] The stroke detection mechanism 3 includes a casing 34, an output torque sensor, a stroke displacement sensor and a locator; the casing 34 is pierced with a dowel 32, and the two ends of the dowel 32 are respectively connected to the drive mechanism 2, the transformer The torque control mechanism 5 is connected;

[0055] The casing 34 is a metal casing, and the two ends of the dowel bar 32 are respectively connected to the two ends of the casing 34 through a conductive support bearing 31 and an insulating support bearing 36. A reset spring 35 is arranged in the casing 34, and the reset The spring 35 is arranged at one end close to the insulating s...

Embodiment 2

[0065] Such as figure 1 , figure 2 As shown, this embodiment is based on Embodiment 1, 3. An electric measurement and control device suitable for manual valve action test according to claim 2, characterized in that, the stroke detection mechanism 3 also includes a contact point 33, so One end of the contact point 33 is connected to the dowel bar 32, and the other end is connected to the housing 34 through a ball head; the contact point 33 is a triangular structure, one side of the triangular structure is connected to the dowel bar 32, and the corresponding vertex is passed through the ball. The head is connected to the shell 34; the stroke displacement sensor is provided with a plurality of stroke displacement sensors forming continuous measurement points on the dowel rod 32; the stroke displacement sensor is installed on the outside of the dowel rod 32 through precision threads.

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Abstract

The invention discloses an electric measurement and control device and method suitable for a manual valve action test. The electric measurement and control device comprises a shell, a control mechanism and a clamp, wherein a driving mechanism, a stroke detection mechanism and a variable torque control mechanism are arranged in the shell; the stroke detection mechanism comprises a housing, an output torque sensor, a stroke displacement sensor and a positioner; a dowel bar is arranged in the housing in a penetrating mode, and the two ends of the dowel bar are connected with the driving mechanism and the variable torque control mechanism respectively; the variable torque control mechanism comprises a planetary gear set and a power frequency converter; and one end of the planetary gear set is connected with the dowel bar, the other end of the planetary gear set is connected with the clamp, the clamp is used for being connected with a driving part of the manual valve, and the power frequency converter is used for providing variable-frequency power for the driving mechanism. The problem that an existing valve test electric control technology is poor in universality is solved, and the torque can undergo step change in the operation process.

Description

technical field [0001] The invention relates to the technical field of stress monitoring of mechanical connection parts, in particular to an electric measurement and control device and method suitable for manual valve action tests. Background technique [0002] Manual valves are important equipment in nuclear power, wind power, thermal power, chemical, petroleum, new energy and other fields. Since manual valves need to be tested on the number of opening and closing times, and the number of times is large, the speed and mode of movement of the valve need to be precisely controlled during the test process, the manual workload is large, and the test status is difficult to unify. The existing electronic control technology for valve testing is not only poor in versatility, but also difficult to control the driving force, for example: [0003] Patent CN 201721250375.9 discloses an intelligent valve actuator, including a housing, the upper part of the housing has a top cover, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/003G01D21/02
CPCG01M13/003G01D21/02
Inventor 张林湛力聂常华吴雄
Owner NUCLEAR POWER INSTITUTE OF CHINA
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