Electro-hydraulic executer capable of preventing fire loss increment

An electro-hydraulic actuator and hydraulic technology, applied in the direction of valve operation/release devices, valve details, safety valves, etc., can solve problems such as fire damage expansion, electro-hydraulic actuators cannot work, valves cannot be closed, etc., to avoid Effect of Fire Loss Expansion

Inactive Publication Date: 2018-11-30
SHENYANG NORTHEAST ELECTRIC POWER CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical result described by this new device can be improved safety during fires compared to previous devices due to its ability to close down when needed for better airflow or preventing flames from spreading too much outdoors.

Problems solved by technology

This patented technical problem addressed by this patents relates to prevention of fires caused by explosions during combustible locations where there may occur an emergency situation requiring opening up gas lines for safety purposes without shutting down the entire system due to lack of communication between different components involved.

Method used

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  • Electro-hydraulic executer capable of preventing fire loss increment

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Embodiment Construction

[0010] Set the rotary cylinder 1 to drive the valve to close, and the moving direction of the rack is that the rack moves from cylinder A to cylinder B. The present invention includes a rotary oil cylinder, an oil tank 4 and its oil return pipeline 41, an accumulator 10 and its oil pipe 101, the rotary oil cylinder includes two oil cylinders A and B, one end of the fusible plug pipeline 3 and the control of the hydraulic reversing valve 2 The cavities 21 are all connected to the oil pipe 101 of the accumulator, and the other end of the fusible plug pipe is connected to the oil return pipe 41 of the oil tank. When the rotary cylinder drives the valve to close, the hydraulic reversing valve and the electromagnetic reversing valve 9 are connected in parallel, that is, two A port, B port, P port and T port of the valve are connected together. One-way throttle valve 8 regulates the movement speed of the actuator, 7 is a pressure switch, and 6 is a throttle valve.

[0011] When the...

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Abstract

The invention provides an electro-hydraulic executer capable of preventing fire loss increment, and solves the problem of the way to prevent the fire loss increment. The electro-hydraulic executer comprises an electromagnetic reversing valve, an energy storer and an oil pipe thereof, an oil tank and an oil return pipeline thereof; one end of a fusible plug pipeline and a control cavity of a hydraulic reversing valve are both connected to an oil pipe of the energy storer; the other end of the fusible plug pipeline is connected to an oil return pipeline of the oil tank; and when a rotating oil cylinder drives a valve to close, the hydraulic reversing valve is associated with the electromagnetic reversing valve. When fire occurs, a fusible plug is molten, and the fusible plug pipeline is opened; the fusible plug pipeline controls high-pressure oil in the cavity to leak; the hydraulic reversing valve is opened; the high-pressure oil of the energy storer enters an oil port of an A oil cylinder by the hydraulic reversing valve; meanwhile, no-pressure oil in a B oil cylinder flows back into the oil tank; a driving rack is shifted from the A oil cylinder to the B oil cylinder; and the driving valve is closed to prevent the fire loss increment.

Description

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Claims

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Application Information

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Owner SHENYANG NORTHEAST ELECTRIC POWER CONTROL
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