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Nuclear grade M-type pneumatic straight diaphragm valve

A diaphragm valve, pneumatic technology, applied in the direction of diaphragm valve, diaphragm, valve details, etc., can solve the problems of valve running, aging, easy wear of diaphragm, etc., to avoid leakage, fast and accurate signal transmission effect.

Inactive Publication Date: 2014-01-22
SHANGHAI NO FIVE VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, many diaphragm valves have many disadvantages such as the diaphragm is easy to wear and age, and the valve runs, pops, drips, and leaks.

Method used

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  • Nuclear grade M-type pneumatic straight diaphragm valve
  • Nuclear grade M-type pneumatic straight diaphragm valve

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 , figure 2 As shown, a nuclear-grade M-type pneumatic straight-through diaphragm valve includes a valve body 1, a diaphragm 2, a valve disc 3, a valve cover 4, a valve stem 5, an adjusting screw 13, a handwheel rod 25, a handwheel 26, a cylinder 32, Bracket 33, indicator rod 38 and guide plate 39; the space for containing the valve disc 3 is formed after the valve body 1 is connected with the valve cover 4, and the diaphragm 2 is arranged at the junction of the valve body 1 and the valve cover 4, so The lower end of the valve stem 7 is connected with the valve flap 3, the upper end of the valve stem 7 is connected with the adjusting screw 13, the upper end of the adjusting screw 13 is connected with the hand wheel rod 25 through the cylinder 32, and the upper end of the hand wheel rod 25 is It is connected with the ...

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Abstract

The invention relates to a nuclear grade M-type pneumatic straight diaphragm valve which comprises a valve body, a diaphragm, a valve clack, a valve cover, a valve rod, an adjusting screw rod, a hand wheel rod, a hand wheel, an air cylinder, a support, an indicating rod and a guide plate. The valve body and the valve cover are connected to form space for containing the valve clack, the diaphragm is arranged on the connecting portion of the valve body and the valve cover, the lower end of the valve rod is connected with the valve clack, the upper end of the valve rod is connected with the adjusting screw rod, the upper end of the adjusting screw rod is connected with the hand wheel rod, the upper end of the hand wheel rod is connected with the hand wheel, the air cylinder is connected with the valve cover through the support, the upper end of the indicating rod is fixed on the guide plate, the lower end of the indicating rod is fixedly connected with the valve cover, and the guide plate is connected with the valve rod. Compared with the prior art, the nuclear grade M-type pneumatic straight diaphragm has the advantage of completely eradicating 'moving, disengaging, dripping and leaking' of a common valve.

Description

technical field [0001] The invention relates to a valve, in particular to a nuclear-level M-type pneumatic straight-through diaphragm valve. Background technique [0002] The nuclear-grade M-type pneumatic straight-through diaphragm valve is one of the important devices in the pressurized water reactor nuclear power plant, and it is also a component of the nuclear power plant that belongs to the second level of safety. In particular, the operation of the diaphragm valve - the pneumatic actuator has not yet been localized in China and is completely dependent on imports. Therefore, the invention of this project has laid a solid foundation for the development of nuclear power units of one million kilowatts in my country. [0003] The nuclear-grade M-type pneumatic straight-through diaphragm valve uses the diaphragm as the opening and closing part, and the pneumatic actuator drives the valve stem to move up and down along the axis to isolate the driving parts from the medium. T...

Claims

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Application Information

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IPC IPC(8): F16K7/17F16K31/145F16K37/00
CPCF16K7/17F16K27/0236F16K31/145F16K37/0008
Inventor 苏仕平赵子慧王超
Owner SHANGHAI NO FIVE VALVE FACTORY
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