CN207081523U - A kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test - Google Patents
A kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test Download PDFInfo
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- CN207081523U CN207081523U CN201621386625.7U CN201621386625U CN207081523U CN 207081523 U CN207081523 U CN 207081523U CN 201621386625 U CN201621386625 U CN 201621386625U CN 207081523 U CN207081523 U CN 207081523U
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- nitrogen
- screw thread
- tubing
- hermetic seal
- fixedly connected
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Abstract
The utility model discloses a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test, including bottom plate, the top of the bottom plate is fixedly connected with installs case, and blending bin is fixedly connected with inside the upper and lower sides of installs case, some nitrogen cylinders are provided with the left of the installs case；Beneficial effect：Can in parallel a number of nitrogen cylinder or helium tank as needed, a nitrogen cylinder or helium tank is avoided the situation of gas flow deficiency occur, during nitrogen or helium are injected into blending bin, moving blade is rotated, improve the uniformity of mixed gas in blending bin, and other driven by energy are not needed, mixed gas passes through the uniformity of the lifting mixed gas further walked after helical blade, by being flowed out after grid-type stabilier from outlet pipe, the utility model is simple in construction, it is preferable to the mixture homogeneity of nitrogen and helium, improve the accuracy of detection of the mixed gas to petroleum pipeline hermetic seal screw thread.
Description
Technical field
A kind of oil jacket tube detection device is the utility model is related to, is specifically that one kind is used for tubing and casing hermetic seal screw thread air-tightness
The nitrogen helium gas mixing device of detection.
Background technology
The country is during the size expansion of underground natural gas storage tank, and annular space phenomenon with pressure occurs in part gas storage well, seriously
It has impact on the long-term safety stable operation of gas storage.This phenomenon is, it is necessary in oil pipe and sleeve pipe mostly caused by screw thread leakage
Carry out air-leakage test when entering well, i.e., by nitrogen helium gas mixing device for accumulator provide it is satisfactory detection source of the gas (nitrogen helium mixes
Close gas), then air-leakage test is carried out for tubing and casing gas transmission by accumulator, with time to the undesirable screw thread of gas tightness
Give a forecast, avoid triggering engineering safety accident and economic loss because screwed connection is unqualified.
Therefore, can the quality that nitrogen helium gas mixing device designs reach technical requirements to detection source of the gas and play material impact, so
And the mixture homogeneity of current gas mixing device is unsatisfactory, the accuracy of detection means is often influenceed.
Utility model content
The purpose of this utility model is that providing a kind of nitrogen helium for tubing and casing hermetic seal screw thread air-leakage test mixes gas
Device, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test, including bottom plate, the bottom plate
Top is fixedly connected with installs case, and blending bin is fixedly connected with inside the upper and lower sides of installs case, and the left side of the installs case is set
There are some nitrogen cylinders, some helium tanks are provided with the right side of installs case, the top of the nitrogen cylinder and helium tank has been respectively turned on
Admission line, manual hard seal ball valve is mounted on each admission line, the top left and right sides of the installs case is fixed respectively
Plenum chamber is connected, top and the plenum chamber of admission line are connected, and the side wall of plenum chamber, which is connected, Correspondent pipeline, on Correspondent pipeline
Flow control valve is installed, the upper inside walls left and right sides of the blending bin has been respectively fixedly connected with fixed case, the inside of fixed case
Driving blade is provided with, the mounting hole fixed cover of driving blade is connected to rotating shaft, and the upper and lower side of rotating shaft is upper and lower with fixed case respectively
Sidewall bodies rotate connection, the lower end of rotating shaft through fixed case downside wall body and be fixedly connected with moving blade, the fixation
The side wall of case is connected by L-type pipeline and Correspondent pipeline, is led between the fixed case positioned at left side and the fixed case positioned at right side
Cross three-way pipe to be connected, the rear side wall body of the blending bin, which is connected, outlet pipe.
As further program of the utility model：The top left and right sides of the installs case is installed with pressure respectively
Table, pressure gauge are connected by connecting pipe and Correspondent pipeline.
As the utility model further scheme：The bottom of the bottom plate is installed with self-locking universal wheel.
As the utility model further scheme：Grid-type current stabilization is fixedly connected with the downside of the inwall of the blending bin
Plate.
As the utility model further scheme：The outlet side threaded engagement connection of the three-way pipe has air-casing
Cylinder, the bottom threaded engagement connection of outlet sleeve have lid, and the bottom of lid offers some ventholes.
As the utility model further scheme：Fixed column, the outer surface of fixed column have been inserted in the three-way pipe
It is fixedly connected on helical blade.
Compared with prior art, the beneficial effects of the utility model are：Can a number of nitrogen cylinder in parallel as needed
Or helium tank, avoid a nitrogen cylinder or helium tank from the situation of gas flow deficiency occur, nitrogen or helium are injected into mixed
During mould assembling, moving blade is rotated, and improves the uniformity of mixed gas in blending bin, and does not need other energy
Source drives, mixed gas by the uniformity of the lifting mixed gas further walked after helical blade, by after grid-type stabilier from
Outlet pipe flows out, and the utility model is simple in construction, preferable to the mixture homogeneity of nitrogen and helium, improves mixed gas pair
The accuracy of the detection of petroleum pipeline hermetic seal screw thread.
Brief description of the drawings
Fig. 1 is a kind of structural representation of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test；
Fig. 2 is a kind of left view schematic diagram of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test；
Fig. 3 is the enlarged diagram of I in nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test a kind of.
In figure：1- installs cases, 2- blending bins, 3- nitrogen cylinders, 4- helium tanks, 5- admission lines, 6- plenum chambers, 7- are hard manually
Seal ball-valve, 8- Correspondents pipeline, 9- flow control valves, 10- connecting pipes, 11- pressure gauges, 12-L types pipeline, 13- fixed cases,
14- driving blades, 15- rotating shafts, 16- moving blades, 17- three-way pipes, 18- outlets sleeve, 19- fixed columns, 20- helical blades,
21- lids, 22- ventholes, 23- grid-type stabilier, 24- bottom plates, 25- self-lockings universal wheel, 26- outlet pipes.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Refer to Fig. 1-3, a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test, including bottom plate
1, the top of the bottom plate 24 is fixedly connected with installs case 1, and blending bin 2 is fixedly connected with inside the upper and lower sides of installs case 1, described
The left side of installs case 1 is provided with some nitrogen cylinders 4, and the right side of installs case 1 is provided with some helium tanks 3, the nitrogen cylinder 3 and helium
The top of gas cylinder 4 has been respectively turned on admission line 5, and manual hard seal ball valve 7, the peace are mounted on each admission line 5
The top left and right sides of vanning 1 is respectively fixedly connected with plenum chamber 6, and top and the plenum chamber 6 of admission line 5 are connected, plenum chamber 6
Side wall, which is connected, Correspondent pipeline 8, and flow control valve 9, the upper inside walls left and right sides of the blending bin 2 are provided with Correspondent pipeline 8
Fixed case 13 is respectively fixedly connected with, fixed case 13 is internally provided with driving blade 14, and the mounting hole of driving blade 14 is fixed
It is socketed with rotating shaft 15, the upper and lower side top and bottom sidewall body phase rotation connection with fixed case 13 respectively of rotating shaft 15, the lower end of rotating shaft 15
Through fixed case 13 downside wall body and be fixedly connected with moving blade 16, the side wall of the fixed case 13 passes through L-type pipeline 12
It is connected with Correspondent pipeline 8, the fixed case 13 positioned at left side is connected between the fixed case 13 on right side by three-way pipe 17
Logical, the rear side wall body of the blending bin 2, which is connected, outlet pipe 26；
The admission line 5 being connected with plenum chamber 6 is provided with several, therefore a number of nitrogen in parallel as needed
Bottle 3 or helium tank 4, a nitrogen cylinder 3 or helium tank 4 is avoided the situation of gas flow deficiency occur, nitrogen is logical from nitrogen cylinder 3
Cross admission line 5, plenum chamber 6, Correspondent pipeline 8 and L-type pipeline 12 to enter in fixed case 13, the now flowing of nitrogen makes driving
Blade 14 is rotated, and drives rotating shaft 15 to be rotated, so that moving blade 16 is rotated, to the gas in blending bin 2
Blown, improve the mixing uniformity of the nitrogen and helium in blending bin 2, nitrogen finally flows from the outlet side of three-way pipe 17
Go out, helium is exited into blending bin 2 by same circulation path from the outlet side of three-way pipe 17, is now placed in left and right two
The moving blade 16 of side is rotated simultaneously, the mixing uniformity of the nitrogen in blending bin 2 and helium is further lifted, finally
Mixed gas flows out from outlet pipe 26.
The top left and right sides of the installs case 1 is installed with pressure gauge 11 respectively, and pressure gauge 11 passes through connecting pipe 10
It is connected with Correspondent pipeline 8, nitrogen or helium is carried out by adjusting flow control valve 9 according to the display on pressure gauge 11
The control of flow.
The bottom of the bottom plate 24 is installed with self-locking universal wheel 25.
Grid-type stabilier 23 is fixedly connected with the downside of the inwall of the blending bin 2, because moving blade 16 is in blending bin 2
Gas blown, therefore the mixed gas in blending bin 2 is unstable, can make to pass through outlet after entering grid-type stabilier 23
The mixed gas stability of pipeline 26 is preferable.
The outlet side threaded engagement connection of the three-way pipe 17 has outlet sleeve 18, the bottom threaded engagement of outlet sleeve 18
Lid 21 is connected with, the bottom of lid 21 offers some ventholes 22.
Fixed column 19 has been inserted in the three-way pipe 17, the outer surface of fixed column 19 is fixedly connected on helical blade 20, from
The gas of the outlet side outflow of three-way pipe 17 improves the uniformity of mixed gas again after the effect of helical blade 20.
Operation principle of the present utility model is：The admission line 5 being connected with plenum chamber 6 is provided with several, therefore root
According to a number of nitrogen cylinder 3 or helium tank 4 in parallel is needed, a nitrogen cylinder 3 or helium tank 4 is avoided gas flow occur not
The situation of foot, nitrogen enter fixed case from nitrogen cylinder 3 by admission line 5, plenum chamber 6, Correspondent pipeline 8 and L-type pipeline 12
In 13, the now flowing of nitrogen is rotated driving blade 14, drives rotating shaft 15 to be rotated, so that moving blade 16 enters
Row is rotated, and the gas in blending bin 2 is blown, and improves the mixing uniformity of the nitrogen and helium in blending bin 2, nitrogen is most
Flowed out eventually from the outlet side of three-way pipe 17, helium is exited into mixed by same circulation path from the outlet side of three-way pipe 17
In mould assembling 2, it is now placed in the moving blade 16 of the left and right sides while is rotated, makes mixing for nitrogen in blending bin 2 and helium
Close uniformity further to be lifted, final mixed gas flows out from outlet pipe 26, because moving blade 16 is to the gas in blending bin 2
Body is blown, therefore the mixed gas in blending bin 2 is unstable, can make to pass through outlet pipe after entering grid-type stabilier 23
26 mixed gas stability is preferable.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test, including bottom plate, it is characterised in that institute
The top for stating bottom plate is fixedly connected with installs case, and blending bin is fixedly connected with inside the upper and lower sides of installs case, the installs case
Left side is provided with some nitrogen cylinders, and some helium tanks, the upper part of the nitrogen cylinder and helium tank are provided with the right side of installs case
Jie Tong there is not admission line, manual hard seal ball valve, the top left and right sides of the installs case are mounted on each admission line
Plenum chamber is respectively fixedly connected with, top and the plenum chamber of admission line are connected, and the side wall of plenum chamber, which is connected, Correspondent pipeline, converges
Flow control valve is installed, the upper inside walls left and right sides of the blending bin has been respectively fixedly connected with fixed case, fixed on threading a pipe
Case is internally provided with driving blade, and the mounting hole fixed cover of driving blade is connected to rotating shaft, the upper and lower side of rotating shaft respectively with fixation
The top and bottom sidewall body phase rotation connection of case, the lower end of rotating shaft pass through the downside wall body of fixed case and are fixedly connected with moving blade,
The side wall of the fixed case is connected by L-type pipeline and Correspondent pipeline, the fixed case positioned at left side and the fixation positioned at right side
It is connected between case by three-way pipe, the rear side wall body of the blending bin, which is connected, outlet pipe.
2. a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test according to claim 1, its
It is characterised by, the top left and right sides of the installs case is installed with pressure gauge respectively, and pressure gauge passes through connecting pipe and Correspondent
Pipeline is connected.
3. a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test according to claim 1, its
It is characterised by, the bottom of the bottom plate is installed with self-locking universal wheel.
4. a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test according to claim 1, its
It is characterised by, grid-type stabilier is fixedly connected with the downside of the inwall of the blending bin.
5. a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test according to claim 1, its
It is characterised by, the outlet side threaded engagement connection of the three-way pipe has outlet sleeve, the bottom threaded engagement connection of outlet sleeve
There is lid, the bottom of lid offers some ventholes.
6. a kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test according to claim 5, its
It is characterised by, fixed column has been inserted in the three-way pipe, and the outer surface of fixed column is fixedly connected on helical blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621386625.7U CN207081523U (en) | 2016-12-16 | 2016-12-16 | A kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621386625.7U CN207081523U (en) | 2016-12-16 | 2016-12-16 | A kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207081523U true CN207081523U (en) | 2018-03-09 |
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ID=61427376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621386625.7U Expired - Fee Related CN207081523U (en) | 2016-12-16 | 2016-12-16 | A kind of nitrogen helium gas mixing device for tubing and casing hermetic seal screw thread air-leakage test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207081523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440999A (en) * | 2019-08-07 | 2019-11-12 | 中海石油(中国)有限公司 | The experimental rig that special thread oil casing leakproofness monitors under a kind of dynamic load operating condition |
-
2016
- 2016-12-16 CN CN201621386625.7U patent/CN207081523U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440999A (en) * | 2019-08-07 | 2019-11-12 | 中海石油(中国)有限公司 | The experimental rig that special thread oil casing leakproofness monitors under a kind of dynamic load operating condition |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180309 Termination date: 20181216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |