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Double-acting flat gate valve

A flat gate valve, double-acting technology, applied in the direction of sliding valves, valve devices, engine components, etc., can solve the problems of pipeline and equipment blockage, single function, etc.

Inactive Publication Date: 2011-02-02
FANGYUAN VALVE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of its structural characteristics, the existing gate valves only have the function of cutting off and conducting the medium, and the function is relatively single, especially for some media containing solid impurities, the impurities and the medium flow together when the valve is opened, making the gate valve The pipeline and its equipment at the back end are often blocked by the accumulation of solid impurities

Method used

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Embodiment Construction

[0010] Such as figure 1 The specific embodiment of the present invention shown includes a valve body 1, a parallel gate 2, a valve stem 3, a valve cover 4, a bracket 6, and a valve stem lift drive mechanism 5. The valve stem lift drive mechanism 5 described in this embodiment is the handwheel 51, and the linkage between the handwheel 51 and the valve stem 3 is a conventional technology in the art, and will not be described in detail here. figure 1 A conventional matching method is provided, the valve body 1 is provided with flow passages, the flow passages are opened on both sides of the valve body 1, and the valve body 1 is provided with a valve seat relative to the flow passages, The parallel gate can be moved up and down and arranged in the valve seat 7, and the upper end of the parallel gate 2 is fixedly linked with the valve stem 3. Adapted through hole 21, so that when the parallel gate is in the open state of the valve, the medium can be conducted through the through ...

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Abstract

The invention discloses a double-acting flat gate valve, which comprises a valve body, a parallel gate, a valve stem, a valve cover, a bracket and a valve stem lifting drive mechanism. A runner is arranged in the valve body and opened on the two sides of the valve body; the valve body is provided with a valve seat relative to the runner; the parallel gate is liftably movably arranged in the valve seat; the upper end of the parallel gate is interlocked with a valve stem; the lower part of the parallel gate is provided with a through hole of which the size is matched with that of an inner hole of the valve seat; a filter plate is arranged in the through hole; and a plurality of filter holes are arranged on the filter plate. As the double-acting flat gate valve has double functions, the valve can filter media and can also cut off media.

Description

technical field [0001] The invention relates to a gate valve, in particular to a double-acting flat gate valve with dual functions of cutting and filtering. Background technique [0002] Slab gate valve is one of the commonly used valves in petrochemical, natural gas, urban pipeline network and other engineering technical fields. Its structure is mainly composed of valve body, valve seat, parallel gate, valve stem, valve cover, and valve stem driving mechanism. Seat and parallel gate adopt metal hard seal or soft seal. Due to the limitations of its structural characteristics, the existing gate valves only have the function of cutting off and conducting the medium, and the function is relatively single, especially for some media containing solid impurities, the impurities and the medium flow together when the valve is opened, making the gate valve The pipeline and its equipment at the back end are often blocked by the accumulation of solid impurities. Contents of the inven...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K51/00
Inventor 张荣伟鲁建明叶春年朱佑良李善芳阮旭朝
Owner FANGYUAN VALVE GROUP
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