Feedback support for valve positioner of linear-stroke pneumatic film regulating valve

A valve positioner, pneumatic film technology, applied in valve devices, engine components, mechanical equipment, etc., can solve problems such as loosening, delaying production start-up time, etc., and achieve the effect of convenient debugging and maintenance

Inactive Publication Date: 2016-02-03
HUBEI TAIHE PETROCHEM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This device can achieve correct feedback, but because it is fixed by the adjustment nut used to adjust the position of the valve switch, it is associated with the valve stem. When debugging to adjust the valve stem, the bracket on the positioner rod must be It will be loosened, the bracket on the locator rod must be reassembled, and the locator must be re-adjusted; Commissioning, delayed production start-up time

Method used

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  • Feedback support for valve positioner of linear-stroke pneumatic film regulating valve
  • Feedback support for valve positioner of linear-stroke pneumatic film regulating valve

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Embodiment Construction

[0013] The structure of the present invention is as figure 2 Shown: a straight-stroke pneumatic film control valve valve positioner feedback bracket, including split nut 2, the split nut 2 is provided with threads, and the bracket 4 on the positioner rod is fixed on the split nut 2 through the lock nut 5 , A washer 3 is arranged between the split nut 2 and the bracket 4 on the locator rod. The gasket 3 is a copper gasket.

[0014] The working principle of the present invention is as follows: the split nut 2 is set on the actuator push rod 1, the thread is formed by tapping on the split nut 2, and the bracket 4 on the locator rod is fixed on the split nut 2 with the lock nut 5 , the valve stem 7 is adjusted by the adjustment nut 6. In this way, the upper bracket 4 of the positioner rod is not related to the valve stem 7, and debugging and maintenance will not affect the upper bracket 7 of the positioner rod, which facilitates debugging and maintenance, and enables feedback T...

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PUM

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Abstract

A feedback support for a valve positioner of a linear-stroke pneumatic film regulating valve comprises a half nut. A thread is arranged on the half nut. A positioner rod upper support is fixed to the half nut through a lock nut. A gasket is arranged between the half nut and the positioner rod upper support. The gasket is a red copper gasket. According to the feedback support for the valve positioner of the linear-stroke pneumatic film regulating valve, by means of the structure that tapping is conducted on the half nut and the positioner rod upper support is fixed to the half nut through the lock nut, the feedback support is not linked with a valve rod, the positioner rod upper support is not affected by debugging or maintenance, debugging and maintenance are facilitated, a feedback signal can be kept stable for a long term, and the situation that the quality of the regulating valve is changed due to the fact that the feedback signal of the regulating valve is affected on account of factors such as looseness of a regulating nut is avoided.

Description

technical field [0001] The invention belongs to the technical field of valve manufacturing, and in particular relates to a feedback support for a valve positioner of a straight-stroke pneumatic film regulating valve. Background technique [0002] The regulating valve is an important link in the process control system. A simple control system is composed of controlled objects, detection and transmission devices, controllers, and regulating valves. The regulating valve is the terminal component of the system and the execution part of the system. The regulating valve consists of two parts: the actuator and the valve body. Its function is to accept the control signal sent by the controller and adjust the flow of the medium in the pipeline, so as to realize the automatic control of the production process. [0003] The pneumatic control valve is composed of two parts: the valve body and the pneumatic actuator. The actuator generates a corresponding output force according to the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K37/00
Inventor 陈红良
Owner HUBEI TAIHE PETROCHEM EQUIP
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