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Valve lifting force measuring device and system and lifting force coefficient testing method

A measuring device and lifting force technology, applied in the direction of mechanical valve testing, etc., can solve problems such as difficulty in accurate measurement, and achieve the effect of meeting design and selection requirements, high measurement accuracy, and simple measurement system

Active Publication Date: 2020-08-07
SHANGHAI POWER EQUIP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lift force of the valve is the instantaneous force when the valve moves at any position during the opening process. It is difficult to measure accurately. There is an urgent need for a device and method that can accurately and conveniently measure the lift force of the valve.

Method used

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  • Valve lifting force measuring device and system and lifting force coefficient testing method
  • Valve lifting force measuring device and system and lifting force coefficient testing method

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Embodiment

[0026] Such as figure 1 As shown, the present invention provides a valve lifting force measuring device, including a base plate body 1, an upper plate body 2, an upper platen 3, a hand wheel 4, a guide key 5, a support rod 6, a screw rod 7, a force sensor 8 and a sensor Connector 9. The bottom plate body 1 is connected with the connection device at the valve stem of the valve test piece 15 through bolts, and the lifting force measuring device is fixed. The bottom plate body 1 and the upper plate body 2 are connected by four support rods 6 to form a stable measurement frame. Screw rod 7, force sensor 8 and sensor connector 9 are installed. One end of force sensor 8 is connected to the valve stem of valve test piece 15 through sensor connector 9, and the other end is connected to hand wheel 4 through screw rod 7. Hand wheel 4 It is fixed by the upper pressing plate 3 and the guiding key 5.

[0027] Such as figure 2 As shown, the present invention also provides a valve liftin...

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Abstract

The invention discloses a valve lifting force measuring device and system and a lifting force coefficient testing method. The device comprises a bottom plate body, an upper plate body, an upper pressing plate, a hand wheel, a guide key, a supporting rod, a lead screw, a force sensor and a sensor connecting piece. The system comprises a fan, an air inlet pipeline, a valve test piece and an air outlet pipeline, by means of the lifting force measuring device, the lifting force of the valve can be conveniently and rapidly measured, the measuring precision is high, and the design and model selection requirements of a valve matched executing mechanism can be met.

Description

technical field [0001] The invention relates to a valve lifting force measuring device and system and a lifting force coefficient test method, belonging to the technical field of valves. Background technique [0002] In the electric power industry, the lift force of a valve refers to the force required to move the valve at any position during the opening process of the valve in the operating state, and is often expressed by the lift force coefficient. When the valve is opened, due to the influence of the pressure difference between the front and back of the valve, the required force is the largest. Therefore, the magnitude of the lifting force will directly affect the design and selection of the matching actuator of the valve, and its accurate measurement is very important. The lift force of the valve is the instantaneous force when the valve moves at any position during the opening process, and it is difficult to measure it accurately. There is an urgent need for a device a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/003
CPCG01M13/003
Inventor 范雪飞刘网扣徐佳敏江路毅张琳
Owner SHANGHAI POWER EQUIP RES INST