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Safety valve having on line detection function

A safety valve and function technology, applied in the direction of safety valve, functional valve type, balance valve, etc., can solve the problems of difficult connection between external loading mechanism and valve stem, and difficulty in connecting external loading mechanism.

Inactive Publication Date: 2005-01-05
DALIAN LIGONG SAFETY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the installation site of the safety valve, it is not only difficult to connect the external loading mechanism, but also difficult to connect the external loading mechanism to the valve stem

Method used

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  • Safety valve having on line detection function
  • Safety valve having on line detection function

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Embodiment Construction

[0009] The valve seat 3 and the cylinder body 5 are respectively fixed on the lower valve body 1, and the cylinder body 5 is a cylinder body whose inner cavity is a cylinder, two bottom surfaces have circular outlets, and a medium channel 8 is opened on the side wall. The piston 6 is composed of two hollow cylinders coaxial with the cylinder body 5 with different diameters and fixedly connected in series as one. The diameter of the outer surface of the hollow cylinder on the upper part of the piston 6 matches the diameter of the inner cavity of the cylinder body 5 . The diameter of the outer surface of the hollow cylinder in the lower section of the piston 6 matches the outlet diameter of the bottom surface of the cylinder body 5 . The upper hollow cylinder of the piston 6 divides the inner cavity of the cylinder 5 transversely in the cylinder 5, and the lower hollow cylinder of the piston 6 passes through the outlet of the cylinder 5 bottom surface. The disc assembly 4 is fi...

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Abstract

The present invention relates to a safety valve possessing on-line detecting function, it is composed of lower valve body and upper valve body. The valve seat, valve body and its valve flap component are fixed on the lower valve body, pressure regulating device is fixed on the upper valve body. Cylindrical internal cavity is a cylindrical body its top and bottom surfaces have round outlet, side wall is opened with a medium passage. The piston is two cylindrical bodies with same shaft and different diameters serially connected into one body. One end of the medium passage is communicated to cavity body under the piston surface in the cylinder, the other end is communicated to connecting pipeline fixed on the cylinder outside, a closing valve is installed on the connecting pipeline.

Description

technical field [0001] The invention belongs to safety equipment, in particular to a safety valve with on-line detection function. Background technique [0002] Safety valves are the most widely used safety accessories in boilers, pressure vessels and pipeline safety devices. When the pressure of the medium in the pressure vessel rises beyond the specified value due to some reason, the force of the medium in the boiler, pressure vessel and pipeline acting on the valve disc of the internal components of the safety valve is greater than the force produced by the inner spring of the valve or other media. The valve opens automatically, and then fully discharges to prevent the pressure in the boiler, pressure vessel and pipeline from continuing to rise; when the pressure of the medium in the boiler, pressure vessel and pipeline decreases to a certain value due to the discharge of the safety valve, the inner spring of the safety valve Or other medium produces a force greater than...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K17/04F16K17/06F16K17/10F16K37/00
Inventor 由宏新丁信伟王淑兰
Owner DALIAN LIGONG SAFETY EQUIP
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