CN201311373Y - Thread slowly receding constant-pressure sampler - Google Patents
Thread slowly receding constant-pressure sampler Download PDFInfo
- Publication number
- CN201311373Y CN201311373Y CNU2008201309436U CN200820130943U CN201311373Y CN 201311373 Y CN201311373 Y CN 201311373Y CN U2008201309436 U CNU2008201309436 U CN U2008201309436U CN 200820130943 U CN200820130943 U CN 200820130943U CN 201311373 Y CN201311373 Y CN 201311373Y
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- valve
- crude oil
- plunger
- pipeline
- sampler
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Abstract
The utility model provides a sampler for under-pressure crude oil in an oil pipeline, in particular a thread slowly receding constant-pressure sampler which comprises a main body plunger valve and two auxiliary control valves. When the thread slowly receding constant-pressure sampler is used, a hand wheel is rotated to control reciprocating motion and speed of a plunger in the sampler, and the passive force provided by the plunger is utilized to control sample oil to slowly pass through an inlet pipe section of the sampler, thereby conditions of distortion of the sample and flow parameters thereof occurring because the sampled oil is strongly shorn are avoided. The utility model overcomes the Fan country phenomenon in the process of adding depressant in pipeline transporting crude oil, heat treatment modification industrial tests, adding depressant in various crude oils and the heat treatment pipeline transportation process, is mainly used for sampling from a pipeline for transporting modification crude oil, and has the use effect that real pipeline transporting sample oil before being strongly shorn is directly obtained from the pipeline under the condition that the normal pipeline transportation process is not changed.
Description
Affiliated technical field
The utility model relates to a kind of sampler, relates in particular to a kind of sampler that directly obtains true pipe oil transportation sample of (being with and pressing) from the pipeline of conveying with pour-point depressant or thermal treatment crude oil modified.
Background technology
Be widely used in the wax-containing oil pipe conveying with pour-point depressant and thermal treatment conveying crude oil technology.This class delivery technology need be determined the effect under the various treatment conditions and determine preferred plan, and need carry out the tracking and testing of treatment effect during commercial Application through site test.
In the test of crude oil modified on-site sampling, one of ubiquity is called as the problem of " Fan County phenomenon ", promptly through the crude oil after interpolation pour-point depressant or the thermal treatment modification, special wax-crystal structure will be formed, when pipe pressurized sampling, when oil stream from needle valve (or other common sample valves) when jet flow is come out, this wax-crystal structure can suffer largely to destroy, make the flow parameter variation of sample, institute's sample thief can not represent the truth of crude oil in the pipeline.The most frequently used way that addressed this problem in the past is, by pipeline shutdown or flow process pressure release sampling.The stopping transportation sampling can influence ordinary production, can't accomplish the end in view at some pipeline section (for example the lowest point pipeline section behind the peak point with slack flow downstream) at all.Flow process pressure release sampling requires every sampling once must change the conveying flow process of primary sample website, and workload is strengthened.
Summary of the invention
When taking a sample in order to overcome crude oil modified, needle valve (or other common sample valves) is sheared the deterioration effect to the modification oil sample, avoid the trouble and the problem of stopping transportation and flow process pressure release sampling method simultaneously, the utility model provides a kind of oil pipeline band to press sampler, this sampler can significantly reduce and thoroughly avoid original needle valve and other common sample valves that the high strength of modification oil sample is sheared, and reaches the purpose that directly obtains true modification oil sample.The utlity model has easy for installation, simple operation and other advantages.
The technical scheme that its technical matters that solves the utility model adopts is: to be that a kind of high voltage bearing screw thread is slow move back plunger valve to main body, and plunger valve is made up of parts such as valve body, valve gap, valve rod, plunger, handwheel, location, nut, O-ring seals.O-ring seal (high pressure resistant) is contained in the interior groove of valve body, delays at plunger to guarantee sealing when moving back; Valve rod connects plunger by setscrew nut, and is fixed in the valve body by valve gap, and its end that exposes is equipped with handwheel.Rotation hand wheel makes valve rod (screw thread) drive plunger (nut) and pumps in valve chamber, thus the volume of expansion/compression chamber.Valve body lower end has import and outlet pipe section, outlet pipe section is provided with manual control valve, and the import pipeline section generally is provided with manual control valve, but in most of the cases, this valve is not used, but by-pass valve control direct by screw thread and on the pipeline sampling point is connected.
Described import pipeline section is vertically coaxial with valve body, be opened in the valve body bottom, the import pipeline section connect needle valve door or other by-pass valve controls (generally with pipeline on the valve of sampling spot directly be connected), valve and import pipeline section adopt and are threaded so that dismounting and replacing, and the import pipeline section is used to insert crude oil pipeline in use.
Described outlet pipe section is positioned at the position of valve body side near the bottom surface, and outlet pipe section connects a needle valve door or other by-pass valve controls, and valve adopts with outlet pipe section and is threaded, and the valve other end is installed the sampling oil nozzle.
The beneficial effects of the utility model are that the pipeline of carrying crude oil modified can direct sample under the normal delivery technology condition of holding tube line after the utility model has been installed.Because oil sample is subjected to the passive acting force of plunger in the sampler in the sampling overall process always, thereby can guarantee that oil sample is under an almost isobaric environment, to enter sampler under low-down, approaching zero flow rate conditions, so just avoided the modification oil sample, under bigger inside and outside differential pressure, because of by the needle valve on the pipeline (or other common valves) time, the sample distortion that caused by high speed shear, thereby can guarantee directly to obtain in pipe laying real sample and record real flow parameter.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a slow embodiment main part of the isobaric sampler sectional view that moves back of screw thread.
To be that screw thread is slow move back isobaric sampler principle schematic to Fig. 2.
Among Fig. 1 and Fig. 2: 1. handwheel, 2. valve gap, 3. valve body, 4. valve rod, 5. setscrew nut, 6. O-ring seal, 7. plunger, 8. outlet pipe section, 9. import pipeline section, the 10. discharge control valve of band oil nozzle, 11. inlet control valves, 12. pipe layings.
In Fig. 1, O-ring seal (6) is embedded in valve body (3) the inner chamber body wall, and plunger (7) is loaded in valve body (3) chamber, and adopts interference fit between the O-ring seal (6); Setscrew nut (5) is equipped with in valve rod (4) lower end, stretches into the inner chamber of plunger (7), and setscrew nut (5) plays the effect that connects valve rod (4) and plunger (7); Valve rod (4) upper end is fixed on the valve body (3) by valve gap (2) by valve gap (2), and the valve rod top is equipped with handwheel (1); Valve body (3) lower end locates to offer import pipeline section (9) and outlet pipe section (8) as shown in the figure, and two pipeline sections communicate with valve chamber.
In Fig. 2, inlet control valve (11) adopts with the import pipeline section (9) of sampler main body and is threaded, and the other end is connected with pipe laying (12); Discharge control valve (10) adopts with the outlet pipe section (8) of sampler main body and is threaded, and the other end then is connected to the sampling oil nozzle.During use, rotate handwheel (1), drive plunger (interior screw rod) (7) by valve rod (4) and in the chamber of valve body (interior nut) (3), pump the volume of expansion/compression chamber; Switch by control inlet control valve (11) and discharge control valve (10) cooperates simultaneously, and oil sample is sucked the sampler chamber from oil pipeline, is derived from chamber by outlet pipe section, thereby finishes sampling work.
Operation steps:
1, original state need guarantee plunger valve (7) aperture minimum (plunger bottom surface and valve chamber's inner bottom surface are close to), and inlet control valve (11) and discharge control valve (10) are closed.
2, open inlet control valve (11), the slow relative position of rotation hand wheel (1) liftout plunger (7) in valve body (3) chamber, enlarge valve chamber's volume, guarantee that oil sample passes through inlet control valve (11) with enough low flow velocity, thereby allow ducted oil sample slowly enter valve chamber.
3, carry to maximum opening when plunger valve (7), close inlet control valve (11), open discharge control valve (10), oppositely slowly rotate handwheel, by plunger (7) oil sample all is pressed out to sampling container from outlet pipe section, closes discharge control valve (10), finish sampling.
The import and export by-pass valve control is an accessory in the utility model, no matter whether in advance to this device be installed into, the control of export valve, all should think protection domain of the present utility model.
Claims (8)
1. a crude oil modified sampler is made up of main column plug valve and import and export valve, it is characterized in that: imported valve one end is connected main column plug valve bottom by pipeline section, communicates with valve body; Outlet valve one end is connected main column plug valve sidewall by pipeline section, and communicates with valve body, and the other end is connected to oil nozzle.
2. crude oil modified sampler according to claim 1 is characterized in that: main column plug valve valve body has tubular chambers, and plunger is installed in the tubular chambers with form movingly, and cavity bottom has the import pipeline section, and chamber sidewall has outlet pipe section.
3. crude oil modified sampler according to claim 2 is characterized in that: valve chamber can be a cylindrical tubular, also can be that other are such as square tubulose; Chamber sidewall is fluted, and O-ring seal is installed in the groove.
4. crude oil modified sampler according to claim 3 is characterized in that: the distance between O-ring seal uppermost edge and chamber bottom surface is less than the height of plunger.
5. crude oil modified sampler according to claim 2 is characterized in that: the through hole of import pipeline section is positioned at the valve chamber bottom surface, and perpendicular to the chamber bottom surface.
6. crude oil modified sampler according to claim 2 is characterized in that: the outlet pipe section through hole is positioned at the sidewall of valve chamber, and near the chamber bottom surface, and the pipeline section lower limb is not less than the chamber bottom surface.
7. crude oil modified sampler according to claim 2 is characterized in that: plunger can move reciprocatingly in valve chamber, and guarantees that plunger is movable during to its lowest position, and plunger bottom surface and valve chamber bottom surface are close to.
8. crude oil modified sampler according to claim 1 is characterized in that: the import and export valve is the through type valve, and the function of standard-sized sheet and full cut-off is arranged, with the connected mode of miscellaneous part for being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201309436U CN201311373Y (en) | 2008-07-10 | 2008-07-10 | Thread slowly receding constant-pressure sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201309436U CN201311373Y (en) | 2008-07-10 | 2008-07-10 | Thread slowly receding constant-pressure sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311373Y true CN201311373Y (en) | 2009-09-16 |
Family
ID=41108629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201309436U Expired - Lifetime CN201311373Y (en) | 2008-07-10 | 2008-07-10 | Thread slowly receding constant-pressure sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201311373Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435469A (en) * | 2011-12-09 | 2012-05-02 | 东南大学 | Displacement-adjustable connecting and sampling device for crude oil transport pipeline |
| CN105089665A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Extraction type polymer solution sampler |
| CN105424413A (en) * | 2016-01-05 | 2016-03-23 | 王延辉 | Detachable under-pressure pipeline sampling device |
| CN107063752A (en) * | 2017-04-17 | 2017-08-18 | 中国石油大学(北京) | A kind of tube sampler and sampling method for realizing the anti-shearing sampling of isothermal with pressure |
-
2008
- 2008-07-10 CN CNU2008201309436U patent/CN201311373Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435469A (en) * | 2011-12-09 | 2012-05-02 | 东南大学 | Displacement-adjustable connecting and sampling device for crude oil transport pipeline |
| CN105089665A (en) * | 2014-05-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Extraction type polymer solution sampler |
| CN105424413A (en) * | 2016-01-05 | 2016-03-23 | 王延辉 | Detachable under-pressure pipeline sampling device |
| CN107063752A (en) * | 2017-04-17 | 2017-08-18 | 中国石油大学(北京) | A kind of tube sampler and sampling method for realizing the anti-shearing sampling of isothermal with pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Langfang Chronotech Petroleum Technology Co., Ltd. Assignor: Beijing Landy Great Exploit Science and Technology Develop Co., Ltd. Contract record no.: 2011990000808 Denomination of utility model: Thread slowly receding constant-pressure sampler Granted publication date: 20090916 License type: Exclusive License Record date: 20110823 |
|
| C56 | Change in the name or address of the patentee |
Owner name: LANDY WEIYE TECHNOLOGY GROUP CO., LTD. Free format text: FORMER NAME: LANDY ENERGY SERVICES, INC. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100101 Beijing City, Chaoyang District Road No. 5 Yuanda center room C1005 Patentee after: Landy Weiye Technology Group Co., Ltd. Address before: 100101 Beijing City, Chaoyang District Road No. 5 Yuanda center room C1005 Patentee before: Beijing Landy Great Exploit Science and Technology Develop Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090916 |