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Safety shut-off valve

A cut-off valve and safety technology, applied in the direction of sliding valves, valve details, valve devices, etc., can solve the problems of high explosion-proof technical requirements, inability to operate valves, and easy accidents, meet the requirements of no supporting equipment, and prevent failure of the safety cut-off system , cost reduction effect

Pending Publication Date: 2017-08-18
DEYANG ZHENGGUANG PETROLEUM MASCH MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its advantage is that the control principle is simple, and its disadvantage is that the reliability of this scheme is poor, and there is no fault closing function. When a fire occurs, if any control element or valve actuator seal is burned first, the entire system will fail and the valve cannot be closed. , there are major safety hazards; the use of electrical equipment control has high requirements for explosion-proof technology, and the high temperature generated by electric sparks and circuits is likely to cause accidents; uninterruptible power supply is required, and the valve cannot be operated during power failure; pressure drive is required when closing, and time Very long; the system is complicated and the cost is also high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] As a preferred embodiment of the present invention, with reference to the attached figure 1 , attached figure 2 And attached image 3 , this embodiment discloses a safety cut-off valve, this embodiment includes:

[0040] A safety cut-off valve, characterized in that it comprises:

[0041] A valve block 1 that cooperates with the pilot valve group 5 to control the flow direction of the hydraulic oil 14;

[0042] Cooperating with the valve block 1, the pilot valve group 5 that controls the flow direction of the hydraulic oil 14;

[0043] A single-acting actuator 6 that is equipped with hydraulic oil 14 and controls the reaction gate valve 2 to open or close the pressure pipeline 3;

[0044] Open or close the reaction gate valve 2 of the pressure pipe 3;

[0045] The valve block 1, the single-acting actuator 6 and the pilot valve group 5 are respectively connected through hydraulic pipelines.

[0046] The valve block 1 includes a manual pump 101, a hand valve 111 and ...

Embodiment 2

[0066] As a preferred embodiment of the present invention, with reference to the attached figure 1 , attached figure 2 And attached image 3 , this embodiment discloses a safety cut-off valve, this embodiment includes:

[0067] A safety cut-off valve, characterized in that it comprises:

[0068] A valve block 1 that cooperates with the pilot valve group 5 to control the flow direction of the hydraulic oil 14;

[0069] Cooperating with the valve block 1, the pilot valve group 5 that controls the flow direction of the hydraulic oil 14;

[0070] A single-acting actuator 6 that is equipped with hydraulic oil 14 and controls the reaction gate valve 2 to open or close the pressure pipeline 3;

[0071] Open or close the reaction gate valve 2 of the pressure pipeline 3;

[0072] The valve block 1, the single-acting actuator 6 and the pilot valve group 5 are respectively connected through hydraulic pipelines.

[0073] The valve block 1 includes a manual pump 101, a hand valve 11...

Embodiment 3

[0083] As a preferred embodiment of the present invention, with reference to the attached figure 1 , attached figure 2 And attached image 3 , this embodiment discloses a safety cut-off valve, this embodiment includes:

[0084] A safety cut-off valve, characterized in that it comprises:

[0085] A valve block 1 that cooperates with the pilot valve group 5 to control the flow direction of the hydraulic oil 14;

[0086] Cooperating with the valve block 1, the pilot valve group 5 that controls the flow direction of the hydraulic oil 14;

[0087] A single-acting actuator 6 that is equipped with hydraulic oil 14 and controls the reaction gate valve 2 to open or close the pressure pipeline 3;

[0088] Open or close the reaction gate valve 2 of the pressure pipeline 3;

[0089] The valve block 1, the single-acting actuator 6 and the pilot valve group 5 are respectively connected through hydraulic pipelines.

[0090] The valve block 1 includes a manual pump 101, a hand valve 11...

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Abstract

The invention relates to the technical field of valves, in particular to a safety shut-off valve. The safety shut-off valve comprises a valve block which is matched with a pilot valve group to control the flowing direction of hydraulic oil, the pilot valve group which is matched with the valve block to control the flowing direction of the hydraulic oil, a single-action actuator which is filled with the hydraulic oil and controls a counteractive gate valve to open or close a pressure pipeline, and the counteractive gate valve capable of opening or closing the pressure pipeline, wherein the valve block, the single-action actuator and the pilot valve group are connected through hydraulic pipelines respectively. According to the safety shut-off valve, by the adoption of a plug-in type control element on the valve block, the integration degree is high, the reliability is improved, the volume, the weight and the cost of the valve are reduced, the requirement for a working environment is lowered, operation and maintenance are facilitated, and installation is facilitated; the safety shut-off valve is manually opened and is automatically closed in case of a fault; no external energy is needed; and safety guarantee is provided for pressure pipeline elements and field operators.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a safety cut-off valve. Background technique [0002] High-pressure pipelines and containers in the oil and gas industry are at risk of rupture due to long-term use, medium corrosion and erosion. It may pose a serious threat to personnel safety and environmental pollution. With the country's increasing emphasis on safety and environmental protection, oil and natural gas production units have introduced some new policies to ensure safety and environmental protection. All valve manufacturers have begun to study the technology of safety shut-off valves. Now there are standard safety valves on the market. Conventional control methods include electric, pneumatic, hydraulic and pipeline pressure self-driven. The main purpose of safety shut-off valves When the pressure fluctuates greatly, it can cut off the transmission of pipeline medium by itself, so as to achieve the purpose of prote...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/363F16K21/04F16K3/02
CPCF16K3/02F16K21/04F16K31/363
Inventor 林建国段太建周宁康
Owner DEYANG ZHENGGUANG PETROLEUM MASCH MFG CO LTD