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A compound nested oil cylinder valve driving device

A driving device and composite technology, applied in the direction of valve device, valve operation/release device, valve details, etc., can solve problems such as difficult to meet safety functions, complex structure, bulky volume and weight, etc., and achieve superior seismic performance and simplified Structure, the effect of compact structure

Active Publication Date: 2018-09-28
SUFA TECH IND CNNC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional product is a combined design, the hydraulic cylinder and the energy storage device are connected by pipelines, the complex structure, huge volume and weight make it difficult for the valve drive device to meet the safety function under the earthquake accident condition

Method used

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  • A compound nested oil cylinder valve driving device
  • A compound nested oil cylinder valve driving device

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Experimental program
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Embodiment Construction

[0014] as attached figure 1 And attached figure 2 As shown, a compound nested oil cylinder valve driving device includes a hydraulic cylinder assembly 4, a piston rod 10 is arranged in the middle of the hydraulic cylinder assembly 4, an electrical and instrument box 5 and a motor hydraulic pump 6 are arranged on the side wall of the hydraulic cylinder assembly 4 .

[0015] Said compound nested oil cylinder valve driving device also includes a hydraulic valve block assembly 2 and a small accumulator 3 arranged on the side wall of the hydraulic cylinder assembly 4, wherein the hydraulic valve block assembly 2 and the small accumulator 3 Connection, the hydraulic cylinder assembly 4 includes three layers of inside, middle and outside, namely, the outer layer of the hydraulic cylinder 7, the middle layer of the hydraulic cylinder 8, the inner layer of the hydraulic cylinder 9, the middle layer of the hydraulic cylinder 8 and the inner layer of the hydraulic cylinder 9 are connec...

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Abstract

The invention belongs to a valve hydraulic drive device, and specifically relates to a linear gas-liquid linkage valve drive device applicable to the severe rugged environment and capable of realizing a fast emergency shutdown function. The combined type nested oil cylinder valve drive device comprises a hydraulic cylinder assembly. A piston rod is arranged in the middle of the hydraulic cylinder assembly; and an electrical and instrument box and a motor hydraulic pump are arranged on the side wall of the hydraulic cylinder assembly. The combined type nested oil cylinder valve drive device provided by the invention has the remarkable effects that for the application, a structure needs to be simplified, and thus a compact design is produced. Through the combined type nested oil cylinder valve drive device provided by the invention, the valve drive device can be compact in structure and superior in anti-seismic property under special working conditions, and a fast shutdown function of the valve can be provided, so that the function reliability under accident conditions is ensured maximally.

Description

technical field [0001] The invention belongs to a valve hydraulic driving device, in particular to a linear gas-liquid linkage valve driving device which is suitable for a harsh environment and can realize a fast emergency closing function. Background technique [0002] Hydraulic actuation technology is widely used in valve actuation devices, and its advantages are large output thrust and smooth running performance against valve operating force. At the same time, through a special design, the hydraulic drive device can also provide valve control functions such as adjustment and emergency quick closing. [0003] For some special application fields, such as the main steam isolation valve of a large power plant, the valve structure is a gate valve type, with a large caliber, a high output force required, and a safety function in the design: in emergency conditions, the driving device should provide a valve Quick off function within 5 seconds. [0004] In order to meet the fun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/124
CPCF16K31/1245
Inventor 吴辉王晓江张为荣朱京梅祁崇可张楠龙云飞李玉红王志敏曲昌明默静轶
Owner SUFA TECH IND CNNC
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