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Mechanical pressure control on-off controller

A pressure control and controller technology, applied in mechanical equipment, engine components, safety valves, etc., can solve problems such as multiple conversions, many links in the signal transmission process, and unsuitable working conditions and environments, and achieve simple and reliable structures and rapid responses. Effect

Inactive Publication Date: 2007-10-10
陕西航天泵阀科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings are: there are many links in the signal transmission process; there are many types of signal carriers and many conversions; the cycle of "pressure signal—→...—→ closing of the final actuator (valve)" is more than 5 seconds, Moreover, electricity, gas, liquid energy storage equipment or wind and solar equipment are needed to meet the energy dependence of this process, which is extremely unsuitable for harsh field oil and gas well site environments such as deserts and mountains

Method used

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  • Mechanical pressure control on-off controller
  • Mechanical pressure control on-off controller
  • Mechanical pressure control on-off controller

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Embodiment Construction

[0020] The technical solution of the present invention will be further specifically described below in conjunction with the accompanying drawings.

[0021] Referring to Fig. 1, a mechanical pressure control shut-off controller, its structure includes a box body 1, a pressure sensor 2, a mechanical support 3, a balance bar 4, a balance weight 5, an undervoltage spring 6, an overpressure spring 7, Control lever 8, etc.;

[0022] Referring to Fig. 5, a mechanical supporter 3 is arranged in the central part of the box, and the balance weight 5 is located on the mechanical supporter 3, which is in a horizontal balance state. Side is respectively provided with toggle pin 10 left and right.

[0023] Referring to Fig. 2, Fig. 3, Fig. 2 is the structural representation of supporter and balance weight of the present invention; Fig. 3 is the partially enlarged schematic diagram of supporter of the present invention and balance weight;

[0024] One side in the box is provided with a bal...

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Abstract

A pressure controlled on-off controller of mechanical type consists of pressure transducer, mechanical supporter, balance rod, balance block, under-pressure spring, super-pressure spring and control rod. It is featured as enabling to finalize switching off action of valve within less than one second when controlled pipeline is over-pressurized or under-pressurized.

Description

Technical field: [0001] The invention relates to a controller for a pipeline emergency shut-off valve or a circuit switch which uses pressure as an opening and closing signal, in particular to a mechanical pressure-controlled shut-off controller. Background technique [0002] The pressure control shut-off controllers used in the existing pipeline emergency shut-off valves are all composed of "pressure / electrical signal sensor—→electric control / gas (liquid) control element—→gas (liquid) intermediate actuator—→final actuator ( Valve)" This signal transmission and control system constitutes. Its shortcomings are: there are many links in the signal transmission process; there are many types of signal carriers and many conversions; the cycle of "pressure signal—→...—→ closing of the final actuator (valve)" is more than 5 seconds, Moreover, electricity, gas, liquid energy storage equipment or wind and solar equipment are needed to meet the energy dependen...

Claims

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Application Information

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IPC IPC(8): F16K17/00
Inventor 林忠灿李嘉喜
Owner 陕西航天泵阀科技集团有限公司