CN102454403A - Method and device for controlling flow velocity of high-pressure fluid - Google Patents
Method and device for controlling flow velocity of high-pressure fluid Download PDFInfo
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- CN102454403A CN102454403A CN2011103952525A CN201110395252A CN102454403A CN 102454403 A CN102454403 A CN 102454403A CN 2011103952525 A CN2011103952525 A CN 2011103952525A CN 201110395252 A CN201110395252 A CN 201110395252A CN 102454403 A CN102454403 A CN 102454403A
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- 239000012530 fluid Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000001276 controlling effect Effects 0.000 claims description 9
- 206010008469 Chest discomfort Diseases 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The invention discloses a method and a device for controlling the flow rate of high-pressure fluid.
The method is that a set of precise thread pairs are connected between a fluid high-pressure cavity and a low-pressure cavity, and fluid in the high-pressure cavity flows into the low-pressure cavity through a gap between thread teeth of the precise thread pairs; the purpose of controlling the flow rate of the high-pressure fluid is realized by adjusting the effective length of thread matching, the thread matching precision and the diameter specification of the threads. The invention uses a set of thread pair to replace an ultra-fine capillary tube with the inner diameter less than 0.1mm, so that the capillary tube can be replaced by a micro gap generated after the precise threads are processed for matching, the high-pressure fluid is slowly decompressed under the control of a non-control system, and the gas and the liquid of a sample are ensured not to be changed at all in the sampling process. The method solves the technical problem that a sample obtained under the high-temperature and high-pressure environment of a deep oil-gas field is closer to an original phase state, and has great significance for geological analysis.
Description
Technical field
the present invention relates to a kind of method and device of controlling the high-pressure fluid flow velocity, belong to the slow pressure release technical field of high-pressure fluid.
Background technology
in river west oil gas field need realize that about 3000 meters of well depths locate sampling; For the phase of preserving sample does not change, sample must get into sampler extremely slowly during sampling, and must charge into the replacement liquid of certain volume this moment earlier; Principle sampling through displacement; Be that sample pushes replacement liquid under the high pressure effect, replacement liquid is got rid of through capillary tube or fine thread fit clearance extremely slowly, thereby the phase of guaranteeing whole sampling process sample can not change.High-pressure fluid participates in realizing under the control slow pressure release at non control system; Common way just is to use superfine capillary tube (capillary inner diameter is less than 0.1mm) to carry out pressure release; But at present domesticly almost can not make the capillary tube of internal diameter, if buy external superfine capillary tube very expensive less than 0.1mm.
Summary of the invention
the objective of the invention is to, and a kind of method and device of controlling the high-pressure fluid flow velocity is provided.Being implemented in less than the superfine capillary tube of 0.1mm with the secondary alternative internal diameter of an external threading is that we can replace capillary tube through the minim gap that the processing precise screw thread cooperate the back to produce; Realize high-pressure fluid slow pressure release of realization under non control system participates in controlling, thereby the sample that solution obtains is more near original phase behavior under dark oil gas field high temperature and high pressure environment.
Technical scheme of the present invention
a kind of method of controlling the high-pressure fluid flow velocity, this method are that a cover accurate thread pair is connected between fluid high-pressure chamber and the low pressure chamber, and the fluid of high pressure chest flows into low pressure chamber through the gap between the accurate thread deputy thread tooth; The diameter specifications of effective length, threaded engagement precision and screw thread through regulating threaded engagement realizes the purpose of control high-pressure fluid flow velocity.
In the method for
aforesaid control high-pressure fluid flow velocity, the secondary accuracy class of said accurate thread is not less than 6 grades.
In the method for
aforesaid control high-pressure fluid flow velocity, the diameter specifications of said accurate thread pair is less than M30-6H.
In the method for
aforesaid control high-pressure fluid flow velocity, the effective length of said threaded engagement is not less than 300mm.
a kind of device of controlling the high-pressure fluid flow velocity comprises the screw thread pair that is connected between high pressure chest and the low pressure chamber, and screw thread pair is made up of riffled tube and screw rod; The screw rod cylindrical is provided with water conservancy diversion annular groove and closure gasket groove, is provided with sealing ring in the closure gasket groove, and the guide ring trench bottom is provided with pod apertures, and pod apertures communicates with the centre bore of screw rod end.
compared with prior art; The present invention substitutes internal diameter less than the superfine capillary tube of 0.1mm with external threading pair; Realize high-pressure fluid slow pressure release of realization under non control system participates in controlling, guarantee that any variation does not take place for the gas of sample in the sampling process and liquid.Solved the sample under dark oil gas field high temperature and high pressure environment, obtained more near the technical problem of original phase behavior, geological analysis has been significant.Internal diameter is complicated less than the superfine production technology of capillary of 0.1mm in the prior art, cost is high, efficient is low, length consuming time, at present domestic can't production.Rely on import just to make that related industry is under one's control.The present invention substitutes internal diameter with screw thread pair and is skillfully constructed less than the superfine method capillaceous of 0.1mm, and is not only cost-saved, also for domestic industries provides internal diameter less than the superfine substitute capillaceous of 0.1mm, filled up domestic blank.Apparatus structure of the present invention is simple, and production technology is simple, processing cost is low, production efficiency is high, machining period is short, and processing easily can realize the function of internal diameter less than the superfine hair of 0.1mm suction pipe fully.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Being labeled as in
accompanying drawing: 1-riffled tube, 2-screw rod, 3-water conservancy diversion annular groove, 4-closure gasket groove, 5-sealing ring, 6-pod apertures, 7-centre bore.
The specific embodiment
are further described the present invention below in conjunction with accompanying drawing and embodiment, but not as the foundation to the present invention's restriction.
embodiment.
a kind of method of controlling the high-pressure fluid flow velocity; As shown in Figure 1; This method is that a cover accurate thread pair is connected between fluid high-pressure chamber and the low pressure chamber, and the fluid of high pressure chest flows into low pressure chamber through the gap between the accurate thread deputy thread tooth; The diameter specifications of effective length, threaded engagement precision and screw thread through regulating threaded engagement realizes the purpose of control high-pressure fluid flow velocity.The secondary accuracy class of accurate thread is not less than 6 grades.The diameter specifications of accurate thread pair is less than M30-6H.The effective length of threaded engagement is not less than 300mm.
comprise the screw thread pair that is connected between high pressure chest and the low pressure chamber according to the device of the method structure of aforementioned control high-pressure fluid flow velocity, and screw thread pair is made up of riffled tube 1 and screw rod 2; Screw rod 2 cylindricals are provided with water conservancy diversion annular groove 3 and closure gasket groove 4, are provided with sealing ring 5 in the closure gasket groove 4, and water conservancy diversion annular groove 3 bottoms are provided with pod apertures 6, and pod apertures 6 communicates with the centre bore 7 of screw rod 2 ends.
Claims (5)
1. method of controlling the high-pressure fluid flow velocity is characterized in that: this method is that a cover accurate thread pair is connected between fluid high-pressure chamber and the low pressure chamber, and the fluid of high pressure chest flows into low pressure chamber through the gap between the accurate thread deputy thread tooth; The diameter specifications of effective length, threaded engagement precision and screw thread through regulating threaded engagement realizes the purpose of control high-pressure fluid flow velocity.
2. the method for control high-pressure fluid flow velocity according to claim 1 is characterized in that: the secondary accuracy class of said accurate thread is not less than 6 grades.
3. the method for control high-pressure fluid flow velocity according to claim 1 is characterized in that: the diameter specifications of said accurate thread pair is less than M30-6H.
4. the method for control high-pressure fluid flow velocity according to claim 1 is characterized in that: the effective length of said threaded engagement is not less than 300mm.
5. the device that makes up according to the method for the said control high-pressure fluid of the arbitrary claim of claim 1～4 flow velocity is characterized in that: comprise the screw thread pair that is connected between high pressure chest and the low pressure chamber, screw thread pair is by riffled tube (1) and screw rod (2) formation; Screw rod (2) cylindrical is provided with water conservancy diversion annular groove (3) and closure gasket groove (4), is provided with sealing ring (5) in the closure gasket groove (4), and water conservancy diversion annular groove (3) bottom is provided with pod apertures (6), and pod apertures (6) communicates with the centre bore (7) of screw rod (2) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103952525A CN102454403A (en) | 2011-12-02 | 2011-12-02 | Method and device for controlling flow velocity of high-pressure fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103952525A CN102454403A (en) | 2011-12-02 | 2011-12-02 | Method and device for controlling flow velocity of high-pressure fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102454403A true CN102454403A (en) | 2012-05-16 |
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ID=46038032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103952525A Pending CN102454403A (en) | 2011-12-02 | 2011-12-02 | Method and device for controlling flow velocity of high-pressure fluid |
Country Status (1)
| Country | Link |
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| CN (1) | CN102454403A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917968A (en) * | 2022-05-06 | 2022-08-19 | 北京国仪精测技术有限公司 | Sample tube, sample tube assembly and sample analysis instrument of sample analysis instrument |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204727U (en) * | 1987-10-31 | 1988-09-28 | 骆建铭 | Thread reducer assemblage for liquefied petroleum gas |
| US5333648A (en) * | 1992-10-13 | 1994-08-02 | Sentry Equipment Corp. | Variable pressure reducing device |
| CN2768010Y (en) * | 2004-11-03 | 2006-03-29 | 新疆石油管理局钻井工艺研究院 | High temperature high-pressure slurry cup |
| CN201028112Y (en) * | 2007-03-26 | 2008-02-27 | 刘文庆 | Electromagnetic valve |
| CN201521709U (en) * | 2009-09-29 | 2010-07-07 | 武汉海王新能源工程技术有限公司 | Labyrinth decompression valve |
| RU101496U1 (en) * | 2010-10-15 | 2011-01-20 | Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - Газпром ВНИИГАЗ" | DEVICE FOR OPENING THE INPUT CHANNEL OF THE RECEPTION CHAMBER OF THE DEPTH SUCTION SAMPLE |
| CN201991902U (en) * | 2011-02-18 | 2011-09-28 | 珠海格力电器股份有限公司 | Thread plug and pressure relief structure |
-
2011
- 2011-12-02 CN CN2011103952525A patent/CN102454403A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204727U (en) * | 1987-10-31 | 1988-09-28 | 骆建铭 | Thread reducer assemblage for liquefied petroleum gas |
| US5333648A (en) * | 1992-10-13 | 1994-08-02 | Sentry Equipment Corp. | Variable pressure reducing device |
| CN2768010Y (en) * | 2004-11-03 | 2006-03-29 | 新疆石油管理局钻井工艺研究院 | High temperature high-pressure slurry cup |
| CN201028112Y (en) * | 2007-03-26 | 2008-02-27 | 刘文庆 | Electromagnetic valve |
| CN201521709U (en) * | 2009-09-29 | 2010-07-07 | 武汉海王新能源工程技术有限公司 | Labyrinth decompression valve |
| RU101496U1 (en) * | 2010-10-15 | 2011-01-20 | Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - Газпром ВНИИГАЗ" | DEVICE FOR OPENING THE INPUT CHANNEL OF THE RECEPTION CHAMBER OF THE DEPTH SUCTION SAMPLE |
| CN201991902U (en) * | 2011-02-18 | 2011-09-28 | 珠海格力电器股份有限公司 | Thread plug and pressure relief structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114917968A (en) * | 2022-05-06 | 2022-08-19 | 北京国仪精测技术有限公司 | Sample tube, sample tube assembly and sample analysis instrument of sample analysis instrument |
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Application publication date: 20120516 |