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Intrinsic safety and explosion isolation separated pneumatic valve positioner

A technology of pneumatic valves and positioners, applied in valve details, valve devices, valve housing structures, etc., can solve problems such as difficult installation, large volume, poor seismic performance, etc., to achieve enhanced reliability, convenient installation, and reduced The effect of volume and weight

Active Publication Date: 2018-05-08
武汉拓优智能股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flameproof design is adopted as a whole, and the gas path entering and exiting the cavity must be flameproof designed, which leads to the complex structure and large volume of the flameproof positioner, which is not easy to install on small valves
The shock resistance is not good

Method used

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  • Intrinsic safety and explosion isolation separated pneumatic valve positioner
  • Intrinsic safety and explosion isolation separated pneumatic valve positioner
  • Intrinsic safety and explosion isolation separated pneumatic valve positioner

Examples

Experimental program
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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] A pneumatic valve positioner with intrinsically safe and flameproof separation, comprising a flameproof chamber 21 and an intrinsically safe chamber 22. The explosion-proof chamber 21 includes a chamber body 14 , a cover body 8 sealing the chamber body 14 , and a wiring chamber 2 arranged on the side wall of the chamber body 14 . The cavity 14 is provided with a circuit board 5 , nozzle assembly 4 and sensor assemblies 18 , 19 , 20 , and the cover 8 is provided with an explosion-proof display window 7 , an explosion-proof button and a button cover 6 . The wiring cavity 2 is provided with lead terminals 23 , and the side wall of the wiring cavity 2 is provided with a flameproof cable interface 3 , and the wiring cavity 2 is sealed by the wiring cavity cover 1 .

[0018] Wherein, the wiring chamber 2 and the wiring chamber cover...

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PUM

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Abstract

The invention discloses an intrinsic safety and explosion isolation separated pneumatic valve positioner. According to the intrinsic safety and explosion isolation separated pneumatic valve positioner, an amplifier assembly is arranged in an intrinsic cavity; a circuit board, a nozzle assembly, a sensor assembly and other parts are arranged in an explosion isolation cavity. The size and weight ofthe explosion isolation positioner are greatly reduced, the mounting reliability of the positioner is enhanced, and accordingly, the explosion isolation positioner can be mounted on a valve conveniently.

Description

technical field [0001] The invention relates to a pneumatic valve positioner, in particular to a pneumatic valve positioner with intrinsic safety and flameproof separation. Background technique [0002] At present, the flameproof pneumatic valve positioner puts the positioner into the flameproof cavity as a whole to realize the flameproof design. The flameproof design is adopted as a whole, and the gas path entering and leaving the cavity must be flameproof designed, which leads to the complex structure and large volume of the flameproof positioner, which is not easy to install on small valves. The anti-seismic performance is not good. Contents of the invention [0003] In order to enable the intelligent valve positioner to be installed on small valves when used in places with safety level requirements, reduce the volume and weight of the flameproof positioner, and enhance the reliability of the positioner installation, the present invention provides an intrinsically safe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/12F16K27/00F16K27/12
Inventor 柳曦陈仕顺
Owner 武汉拓优智能股份有限公司
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