CN101709630A - Integrated control module for safe shutdown system of wellhead - Google Patents
Integrated control module for safe shutdown system of wellhead Download PDFInfo
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- CN101709630A CN101709630A CN200910310647A CN200910310647A CN101709630A CN 101709630 A CN101709630 A CN 101709630A CN 200910310647 A CN200910310647 A CN 200910310647A CN 200910310647 A CN200910310647 A CN 200910310647A CN 101709630 A CN101709630 A CN 101709630A
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- main control
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Abstract
The invention discloses an integrated control module for a safe shutdown system of a wellhead. Since A two position two-way valve, a main control valve, an overflow valve, a reset valve, an overpressure guide valve, a decompression guide valve, and the like are integrated in one module assembly, therefore, the arrangement of a control system is tend to be compact and reasonable and pipelines among components can be shortened effectively, thereby leading the response speed of system shutdown to be faster and the sensitivity to be higher.
Description
Technical field
The present invention relates to natural gas adopts and is used in the defeated well site to ensure that the well head safe that station equipment or appendix play the safeguard protection effect turn-offs the control device of system.
Background technology
Adopt defeated well site floor mounted at natural gas the shut-off valve of controlling natural gas output and the control system that shut-off valve is controlled are arranged.The sensitivity of the parts in the control system and the sealing of pipeline are to determine the key link of the normal operation of control system.Generally the parts of each function of control system are respectively independently to install and use, and adopt pipeline to be connected between parts and the parts.So, just cause the tube connector line length between the parts, jointing is many, obviously increases owing to these reasons cause potential leakage of oil point, and the performance of control system is descended.
Summary of the invention
The purpose of this invention is to provide a kind of control system of in the module assembly shut-off valve being controlled that a plurality of valve groups are integrated in.
Technical scheme of the present invention is as follows:
A kind of integrated control module for safe shutdown system of wellhead, it is characterized in that: this module has the fuel tank interface, external shut-off valve interface, the accumulator interface, superpressure sensing pipeline interface, 5 external interfaces of decompression sensing pipeline interface, comprise the superpressure pilot valve in the module, the decompression pilot valve, valve resets, two position two-way valve, main control valve, overflow valve, annexation in external interface and the module between each valve is as follows: superpressure sensing pipeline interface, decompression sensing pipeline interface, the accumulator interface is connected to the superpressure pilot valve in the module respectively, on the decompression pilot valve, the superpressure pilot valve, the other end of decompression pilot valve is connected to the valve that resets respectively, the control end of main control valve, the control end of two position two-way valve, the other end of the valve that resets is connected to the fuel tank interface; The accumulator interface also is connected to two position two-way valve, and the other end of two position two-way valve is connected to external shut-off valve interface, also is connected with overflow valve and main control valve on the on/off valve interface outside, and the other end of main control valve and the other end of overflow valve are connected to the fuel tank interface.
Beneficial effect of the present invention is as follows: two position two-way valve, main control valve, overflow valve, the valve that resets, superpressure pilot valve, decompression pilot valve etc. are integrated in the module assembly.The layout of control system more is becoming tight gather and rationally, effectively shorten the pipeline between each parts, thereby the louds shadow speed of system closing is faster, sensitivity is higher, and has reduced the leakage of oil point, alleviated the workload of keeping in repair.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the schematic diagram of integrated control module for safe shutdown system of wellhead embodiment of the present invention.
The specific embodiment
Specific embodiments of the invention 1, as shown in Figure 1, a kind of integrated control module for safe shutdown system of wellhead, it is characterized in that: this module has fuel tank interface A, external shut-off valve interface B, accumulator interface C, superpressure sensing pipeline interface D1,5 external interfaces such as decompression sensing pipeline interface D2, comprise superpressure pilot valve 6 in the module, decompression pilot valve 5, valve 4 resets, two position two-way valve 3, main control valve 2, overflow valve 1, annexation in external interface and the module between each valve is as follows: superpressure sensing pipeline interface D1, decompression sensing pipeline interface D2, accumulator interface C is connected to the superpressure pilot valve 6 in the module respectively, on the decompression pilot valve 5, superpressure pilot valve 6, the other end of decompression pilot valve 5 is connected to the valve 4 that resets respectively, the control end of main control valve 2, the control end of two position two-way valve 3, the other end of the valve 4 that resets is connected to fuel tank interface A; Accumulator interface C also is connected to two position two-way valve 3, the other end of two position two-way valve 3 is connected to external shut-off valve interface B, also be connected with overflow valve 1 and main control valve 2 on the on/off valve interface B outside, the other end of the other end of main control valve 2 and overflow valve 1 is connected to fuel tank interface A.
Mode of operation below in conjunction with present embodiment is further detailed present embodiment:
1. shut-off valve closes
With the superpressure is example, and when the pressure at superpressure sensing pipeline interface D1 place was higher than preset pressure, superpressure pilot valve 6 was opened, and the oil of accumulator flows to reset valve 4, main control valve 2 control ends and two position two-way valve 3 control ends respectively after entering superpressure pilot valve 6 via accumulator interface C.The valve 4 that resets this moment cuts out, oil content does not flow to main control valve 2 control ends and two position two-way valve 3 control ends, two position two-way valve 3 is at first closed the oil duct between accumulator interface C and the external shut-off valve interface B, 2 pipelines of connecting between external shut-off valve interface B and the fuel tank interface A of main control valve, make the oil pressure of shut-off valve not have this passage to flow back to fuel tank, after the oil of shut-off valve was laid down, shut-off valve cut out.The decompression principle is identical with the superpressure principle.
2. the ftercompction of accumulator
When accumulator was mended (beating) pressure, oil entered module from external shut-off valve interface B, flows to overflow valve 1, main control valve 2 and two position two-way valve 3 respectively.Because overflow valve 1 and main control valve 2 are closed, oil flows to accumulator interface C.After the pressure of accumulator was saturated, oil pressure backed down overflow valve 1, and A flows back to fuel tank through the fuel tank interface.Prevent that accumulator from damaging because of pressure is excessive.
3. the unlatching of shut-off valve
Open the valve 4 that resets, the oil of two position two-way valve 3 and main control valve flows to fuel tank interface A by the valve 4 that resets and flows to fuel tank then, this advances main control valve 2 and closes, two position two-way valve 3 is opened, the oil of accumulator flows to external shut-off valve interface B by two position two-way valve 3, drive shut-off valve, up to the shut-off valve safe opening.
Disclosed all features in this manual, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this manual (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (1)
1. integrated control module for safe shutdown system of wellhead, it is characterized in that: this module has the fuel tank interface, external shut-off valve interface, the accumulator interface, superpressure sensing pipeline interface, 5 external interfaces of decompression sensing pipeline interface, comprise the superpressure pilot valve in the module, the decompression pilot valve, valve resets, two position two-way valve, main control valve, overflow valve, annexation in external interface and the module between each valve is as follows: superpressure sensing pipeline interface, decompression sensing pipeline interface, the accumulator interface is connected to the superpressure pilot valve in the module respectively, on the decompression pilot valve, the superpressure pilot valve, the other end of decompression pilot valve is connected to the valve that resets respectively, the control end of main control valve, the control end of two position two-way valve, the other end of the valve that resets is connected to the fuel tank interface; The accumulator interface also is connected to two position two-way valve, and the other end of two position two-way valve is connected to external shut-off valve interface, also is connected with overflow valve and main control valve on the on/off valve interface outside, and the other end of main control valve and the other end of overflow valve are connected to the fuel tank interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103106473A CN101709630B (en) | 2009-11-30 | 2009-11-30 | Integrated control module for safe shutdown system of wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103106473A CN101709630B (en) | 2009-11-30 | 2009-11-30 | Integrated control module for safe shutdown system of wellhead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101709630A true CN101709630A (en) | 2010-05-19 |
| CN101709630B CN101709630B (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103106473A Active CN101709630B (en) | 2009-11-30 | 2009-11-30 | Integrated control module for safe shutdown system of wellhead |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796707A (en) * | 2020-12-31 | 2021-05-14 | 深圳市弗赛特科技股份有限公司 | Unattended intelligent wellhead safety control system and control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921500A (en) * | 1974-06-10 | 1975-11-25 | Chevron Res | System for operating hydraulic apparatus |
| US6116268A (en) * | 1998-11-17 | 2000-09-12 | Barber Industries Inc. | Wellhead safety valve control system |
| US7237472B2 (en) * | 2004-01-09 | 2007-07-03 | Master Flo Valve, Inc. | Linear hydraulic stepping actuator with fast close capabilities |
| CN100425797C (en) * | 2005-08-05 | 2008-10-15 | 何建辉 | Control system of well mouth release valve |
| CN2823731Y (en) * | 2005-08-19 | 2006-10-04 | 泸州川油钻采工具有限公司 | Wellhead safety hydraulic cut-off system |
-
2009
- 2009-11-30 CN CN2009103106473A patent/CN101709630B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112796707A (en) * | 2020-12-31 | 2021-05-14 | 深圳市弗赛特科技股份有限公司 | Unattended intelligent wellhead safety control system and control method thereof |
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| CN101709630B (en) | 2012-11-07 |
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Address after: 646006 No. 78 North madder Road, Sichuan, Luzhou Applicant after: SICHUAN HWAYOO PETROLEUM DRILLING & PRODUCTION CO., LTD. Address before: 646006 No. 78 North madder Road, Sichuan, Luzhou Applicant before: Luzhou Chuanyou Driling Equipment Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: LUZHOU CHUANYOU DRILL + PRODUCTION EQUIPMENT CO., LTD. TO: SICHUAN HWAYOOPETROLEUM DRILLING + PRODUCTION EQUIPMENT CO., LTD. |
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