CN203783577U - Piston type emptying-free sampling device - Google Patents
Piston type emptying-free sampling device Download PDFInfo
- Publication number
- CN203783577U CN203783577U CN201420201412.7U CN201420201412U CN203783577U CN 203783577 U CN203783577 U CN 203783577U CN 201420201412 U CN201420201412 U CN 201420201412U CN 203783577 U CN203783577 U CN 203783577U
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- CN
- China
- Prior art keywords
- piston
- leading screw
- baffle ring
- bonnet
- threaded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a piston type emptying-free sampling device which comprises a fast connector, wherein a conical head side of the fast connector is connected with a screw cap, the other side of the fast connector is in threaded connection with a front plug which is in threaded connection with a cylinder barrel, the other side of the cylinder barrel is in threaded connection with a rear cover, a trapezoidal thread through hole is formed in the center of the rear cover which is in threaded connection with a screw rod, the screw rod and a baffle ring are connected through a thrust bearing and a blocking ring for a shaft respectively, the excircle diameter of the baffle ring is larger than that of the thrust bearing, an outer cylindrical surface of the baffle ring is in clearance fit connection with a counter bored hole formed in the center of the piston, the end surface of the baffle ring is contacted with a step surface of the counter bored hole of the piston, the screw rod fixes the end part of the blocking ring for the shaft to avoid contact with the counter bored hole of the piston, a by-pass hole is formed in the end surface where the front plug and the cylinder barrel are connected and is communicated with outside, and a needle valve is arranged at the communication part. With the adoption of the piston type emptying-free sampling device, the problems of polymer solution waste, environment pollution and the like caused by long-term emptying in a conventional injection well sampling process are solved, and the accuracy and the representativeness of a sampled product are improved.
Description
Technical field
The utility model relates to Injection Well sample devices field, oil field, is specifically related to piston type and exempts from emptying sampling device.
Background technology
In recent years, poly-drive injection well and ternary Injection Well are most popular is portable sampler, but the polymer type injecting along with oil field changes, what applied at scene is that 1,900 ten thousand molecular weight superelevation divide salt-resistant polymer solution viscosity large, problem is more outstanding not exclusively uniformly in salt-resistant polymer mixing, when sampling, the solution of thickness is difficult for upwards flowing into sampling cavity, the liquid that viscosity is relatively little easily flows out, the representativeness of sample is taken out in impact, in sampling process in the past, need within 10-15 minute, just can carry out the sampling of Injection Well afterwards to Injection Well emptying, not only cause the waste of polymer solution, but also cause environment pollution, when polymer solution process sampler, be sheared, these problems directly affect the accuracy of taking out sample, representative, and then the directly accurate judgement of impact to implantation quality.
Summary of the invention
In order to overcome the deficiency in background technology, the utility model proposes piston type and exempt from emptying sampling device and address the above problem.
The technical solution of the utility model is: this piston type is exempted from emptying sampling device and comprised snap joint, the first side coupling nut of circular cone of snap joint, plug before snap joint opposite side is threaded, the front plug cylinder barrel that is threaded, the cylinder barrel opposite side bonnet that is threaded, bonnet center has trapezoidal thread through hole and is connected with threads of lead screw, leading screw passes through thrust bearing, baffle ring connects by shaft block ring, baffle ring outside diameter is greater than the outside diameter of thrust bearing, the counterbore matched in clearance that baffle ring outer cylinder surface is outputed with piston center is connected, baffle ring end face contacts with the step surface of piston counterbore, the fixing end of shaft block ring of leading screw and the counterbore of piston do not contact, the axle head that leading screw is exposed at outside bonnet cuts into square head, each sealing place is provided with seal.
On the end face that front plug in such scheme is connected with cylinder barrel, have by-pass prot and be communicated with outside, be communicated with position and be provided with needle valve; Bonnet center has trapezoidal thread through hole and is connected with threads of lead screw, replaces with, and bonnet center has through hole, and in through hole, interference fit connects copper sheathing, and copper sheathing adopts ormolu material to make, and copper sheathing center has trapezoidal thread and is connected with threads of lead screw; The axle head that leading screw is exposed at outside bonnet cuts into square head, and square head outer cover has torsion tongue piece, and torsion tongue piece endoporus and square head are connected, and two thin slices are extended in the outside of torsion tongue piece.
The utlity model has following beneficial effect: solved in the past in Injection Well sampling process, due to long-time emptying, the polymer solution waste causing, with problems such as environment pollutions, has improved accuracy and the representativeness of sampling sample.
brief description of the drawings:
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is another example structure schematic diagrames of the present utility model.
1-nut in figure, 2-snap joint, plug before 3-, 4-piston, 5-thrust bearing, 6-leading screw, 7-bonnet, 8-square head, 9-cylinder barrel, 10-baffle ring, 11-needle valve, 12-by-pass prot, 13-copper sheathing, 14-torsion tongue piece.
detailed description of the invention:
Below in conjunction with accompanying drawing, the utility model is described in further detail:
By Fig. 1 in conjunction with shown in Fig. 2, piston type is exempted from emptying sampling device, comprise snap joint 2, the first side coupling nut 1 of circular cone of snap joint 2, plug 3 before snap joint 2 opposite sides are threaded, front plug 3 cylinder barrel 9 that is threaded, the cylinder barrel 9 opposite sides bonnet 7 that is threaded, bonnet 7 centers have trapezoidal thread through hole and are threaded with leading screw 6, piston 4 cylindricals are connected with cylinder barrel 9 endoporus matched in clearance, leading screw 6 is by thrust bearing 5, baffle ring 10 connects by shaft block ring, baffle ring 10 outside diameters are greater than the outside diameter of thrust bearing 5, baffle ring 10 outer cylinder surfaces are connected with the counterbore matched in clearance that piston 4 centers are outputed, baffle ring 10 end faces contact with the step surface of piston 4 counterbores, the end of leading screw 6 fixing shaft block rings does not contact with the counterbore of piston 4, in the time of piston 4 pressurized extruding baffle ring 10, leading screw 6 does not contact with piston 4, leading screw 6 can be rotated, the axle head that leading screw 6 is exposed at outside bonnet cuts into square head 8, each sealing place is provided with seal.
On the end face that front plug 3 is connected with cylinder barrel 9, have by-pass prot 12 and be communicated with outside, be communicated with position and be provided with needle valve 11.
Piston type is exempted from emptying sampling device and is mainly made by stainless steel material, leading screw 6 is by medium carbon steel and through modified Quenching Treatment, this device adopts the mode of leading screw 6 propelling pistons 4, and for reducing leading screw friction in motion process, sampler bonnet place selects brass material to be connected with leading screw.
Further, bonnet 7 centers have trapezoidal thread through hole and are threaded with leading screw 6, replace with, bonnet 7 centers have through hole, in through hole, interference fit connects copper sheathing 13, and copper sheathing 13 adopts ormolu material to make, and copper sheathing 13 centers have trapezoidal thread and are threaded with leading screw 6, ormolu has reduced friction factor with being connected of leading screw 6, makes that sampling work is more laborsaving to save time.
Further, the axle head that leading screw 6 is exposed at outside bonnet cuts into square head, square head outer cover has torsion tongue piece 14, torsion tongue piece 14 endoporus and square head are connected, two thin slices are extended in the outside of torsion tongue piece 14, one holds sampler body, on the other hand twists torsion tongue piece 14 can complete sampling work, without by other instruments.
In the time of continuous sampling, Injection Well well head polymer enters in sampler, we first open the needle valve 11 of sampler front end, discharge sampler entrance to the interior residual liquid of piston 4 these segment distances, prevent that last sampling residual liquid from affecting sample examination result, close needle valve 11 and start sampling, because intake wellhead pressure is large, the polymer samples taking out can promote piston and take exercises after 4, simultaneously, the stressed handle by operating personnel's manual rotation sampler of leading screw 6, make leading screw 6 drive piston 4 uniform motion backward, having ensured does not have shear stress in Injection Well sampling process, and this device trace emptying, every mouthful of well of post workman has shortened in 5 minutes by original 20 minutes sample time, effectively save operating time when operating personnel sample, reduce the problem such as polymer waste and environment pollution in sampling process, protect environment, improve operating efficiency, solve in the past in Injection Well sampling process, due to long-time emptying, the polymer solution waste causing is with problems such as environment pollutions, accuracy and the representativeness of sampling sample are improved.
Claims (4)
1. a piston type is exempted from emptying sampling device, comprise snap joint (2), it is characterized in that: the first side coupling nut of circular cone (1) of snap joint (2), plug (3) before snap joint (2) opposite side is threaded, front plug (3) cylinder barrel (9) that is threaded, cylinder barrel (9) the opposite side bonnet (7) that is threaded, bonnet (7) center has trapezoidal thread through hole and is threaded with leading screw (6), leading screw (6) is by thrust bearing (5), baffle ring (10) connects by shaft block ring, baffle ring (10) outside diameter is greater than the outside diameter of thrust bearing (5), baffle ring (10) outer cylinder surface is connected with the counterbore matched in clearance that piston (4) center is outputed, baffle ring (10) end face contacts with the step surface of piston (4) counterbore, the end of the fixing shaft block ring of leading screw (6) does not contact with the counterbore of piston (4), the axle head that leading screw (6) is exposed at outside bonnet cuts into square head (8), each sealing place is provided with seal.
2. piston type according to claim 1 is exempted from emptying sampling device, it is characterized in that: on the end face that front plug (3) is connected with cylinder barrel (9), have by-pass prot (12) and be communicated with outside, be communicated with position and be provided with needle valve (11).
3. piston type according to claim 2 is exempted from emptying sampling device, it is characterized in that: further, bonnet (7) center has trapezoidal thread through hole and is threaded with leading screw (6), replace with, bonnet (7) center has through hole, in through hole, interference fit connects copper sheathing (13), and copper sheathing (13) adopts ormolu material to make, and copper sheathing (13) center has trapezoidal thread and is threaded with leading screw (6).
4. piston type according to claim 3 is exempted from emptying sampling device, it is characterized in that: further, the axle head that leading screw (6) is exposed at outside bonnet cuts into square head, square head outer cover has torsion tongue piece (14), torsion tongue piece (14) endoporus and square head are connected, and two thin slices are extended in the outside of torsion tongue piece (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201412.7U CN203783577U (en) | 2014-04-24 | 2014-04-24 | Piston type emptying-free sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420201412.7U CN203783577U (en) | 2014-04-24 | 2014-04-24 | Piston type emptying-free sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783577U true CN203783577U (en) | 2014-08-20 |
Family
ID=51319777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420201412.7U Expired - Fee Related CN203783577U (en) | 2014-04-24 | 2014-04-24 | Piston type emptying-free sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783577U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967484A (en) * | 2014-04-24 | 2014-08-06 | 黑龙江高仕达通用机械制造有限公司 | Piston type unloading-free sampling device |
| CN105484745A (en) * | 2015-08-13 | 2016-04-13 | 中国石油化工股份有限公司 | Suction type sampler |
-
2014
- 2014-04-24 CN CN201420201412.7U patent/CN203783577U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103967484A (en) * | 2014-04-24 | 2014-08-06 | 黑龙江高仕达通用机械制造有限公司 | Piston type unloading-free sampling device |
| CN105484745A (en) * | 2015-08-13 | 2016-04-13 | 中国石油化工股份有限公司 | Suction type sampler |
| CN105484745B (en) * | 2015-08-13 | 2019-06-28 | 中国石油化工股份有限公司 | A kind of suction-type sampling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20180424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |