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Gas and oil pressing type driving device

A driving device and gas technology, applied in the direction of valve device, fluid pressure converter, valve operation/release device, etc., can solve the problems of tank height increase and cost increase, and achieve the effect of suppressing size and reducing demand

Inactive Publication Date: 2008-02-06
戴淑琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to prevent these problems, the size of the tank itself must reach a certain allowable range, so that not only the height of the tank itself increases, but also the cost

Method used

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  • Gas and oil pressing type driving device
  • Gas and oil pressing type driving device
  • Gas and oil pressing type driving device

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Embodiment Construction

[0033] Hereinafter, this embodiment will be described with reference to the drawings.

[0034] The gas / hydraulic driving device of the present invention is generally used for operating a ball valve provided on a pipeline 10 for transporting high-pressure gas, as shown in FIGS. 1 to 7 . For this reason, there is a solenoid valve 20 connected to the pipeline 10 as a gas supply source via a filter and a separator 14; a gas / oil-pressure converter 30 connected to the solenoid valve 20; a parallel switching mechanism 40; An operating machine 50 that operates the ball valve 12 to open and close the pipeline 10 .

[0035] Although the manipulator 50 for operating the opening and closing of the ball valve 12 is not described in detail, as shown in FIGS. , There is a limit switch 53 on the torque mechanism 55, which can be used to detect the opening and closing operation. The function of this manipulator 50 is to make the rod 56 in the oil cylinder 52 work through the oil pressure fro...

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Abstract

This invention provides a gas / hydraulic drive device which achieves cost reduction in manufacture or transportation by suppressing the size thereof without impairing a function of a gas / hydraulic pressure transducer. The gas / hydraulic drive device is provided with a gas supply source for supplying pressure gas, a solenoid valve for supplying the pressure gas from the gas supply source as required, a gas / hydraulic pressure transducer which receives the pressure gas from the solenoid valve and generates oil pressure by the pressure gas, a relief valve provided between the gas / hydraulic pressure transducer and the operation machine for supplying the oil pressure therefrom, a switching means including a switch valve, a manual pump or the like, a cylinder having an operation machine activating a valve or the like by the oil pressure from the switching means and chambers into which the the gas / hydraulic pressure transducer is divided, and pistons which are provided to respective chambers and moved interlocking with each other. The pressure gas from the gas supply source is supplied to or oil is filled in one side or both sides of pistons in respective chambers.

Description

technical field [0001] The present invention relates to an air / hydraulic driving device used as an actuator for operating a valve on a pipeline. Background technique [0002] Conventionally, gas / hydraulic actuators have used pipeline high-pressure gas as a power source for the operation of pipeline ball valves, and used gas / oil-pressure converters that convert it into hydraulic pressure. In this gas / oil-pressure converter, when pistons are not used, as shown in FIG. 8, vertical tank-shaped converters 72 and 74 are used on the open side and the closed side of the ball valve, respectively. In this case, there is usually no partition between gas and oil inside the pressure transducer. [0003] When the gas / oil-pressure converter that does not use the above-mentioned piston is used for the driving device, as shown in FIG. However, for the oil located below, gas is supplied from the pipe to the upper side of the oil, and to press down the oil, it is necessary to install tanks a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/12F15B3/00
Inventor 中西定之仓田昌
Owner 戴淑琴
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