CN206972506U - A kind of all-metal screw pump with rotor righting function - Google Patents
A kind of all-metal screw pump with rotor righting function Download PDFInfo
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- CN206972506U CN206972506U CN201720840863.9U CN201720840863U CN206972506U CN 206972506 U CN206972506 U CN 206972506U CN 201720840863 U CN201720840863 U CN 201720840863U CN 206972506 U CN206972506 U CN 206972506U
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- stator
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- oriented
- centering ring
- box cupling
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Abstract
The utility model discloses a kind of all-metal screw pump with rotor righting function, including stator, upper box cupling, lower box cupling and rotor, rotor is arranged in bore of stator, stator upper end is connected by upper box cupling with oil pipe, rotor upper end is connected by rod connector with sucker rod, stator lower end is connected by lower box cupling with screen casing, it is characterised in that：Bore of stator internal upper part is provided with top and is oriented to centering ring, bottom is provided with bottom and is oriented to centering ring in bore of stator, top is oriented to centering ring and is set in rotor top, bottom is oriented to centering ring and is set in rotor bottom, and the central axis of central axis and bottom guiding centering ring that top is oriented to centering ring all overlaps with the central axis of stator.The utility model is provided with righting-oriented ring and lower righting-oriented ring, the rotor of all-metal screw pump and the gap of stator is kept homogeneous constant, avoids rotor and stator wears, avoid the generation of holddown phenomenon.
Description
Technical field
It the utility model is related to a kind of improvement of all-metal screw pump, it is specifically a kind of with rotor righting function
All-metal screw pump.
Background technology
Heavy oil wells are exploited frequently with steam soak, because production fluid temperature is high, typically use all-metal screw
Pump is exploited.Existing all-metal screw pump, it is made up of stator, upper box cupling, lower box cupling and rotor, stator, upper box cupling, lower box cupling
All it is made up with rotor of metal material, rotor is arranged in bore of stator, and stator and rotor clearance coordinate, and stator upper end is by above connecing
Hoop is connected with oil pipe, and rotor upper end is connected by rod connector with sucker rod, and stator lower end is connected by lower box cupling with screen casing,
This all-metal screw pump is disadvantageous in that：, can because the stator of all-metal screw pump, rotor are all made up of metal material
With high temperature resistant, but when in use, because the lower end of rotor is not fixed, swing, meeting and stator are produced during rotor rotates
Axis decentraction, cause stator that eccentric wear occurs with rotor, leak, pump efficiency reduces；In the case of high sand content, also easily go out
The stuck phenomenon of existing stator and rotor, the conveying to the medium containing sand is by larger limitation.
The content of the invention
The purpose of this utility model is that the gap for providing a kind of rotor for making all-metal screw pump and stator keeps uniform
It is constant, pump efficiency is improved, avoids rotor and stator from the all-metal screw pump with rotor righting function worn occur.
In order to reach object above, technical scheme is used by the utility model：The one kind has rotor righting function
All-metal screw pump, including stator, upper box cupling, lower box cupling and rotor, rotor be arranged in bore of stator, stator and rotor clearance
Coordinate, stator upper end is connected by upper box cupling with oil pipe, and rotor upper end is connected by rod connector with sucker rod, stator lower end
It is connected by lower box cupling with screen casing, it is characterised in that：Bore of stator internal upper part is provided with top and is oriented to centering ring, and bottom is set in bore of stator
There is bottom to be oriented to centering ring, top is oriented to centering ring and is set in rotor top, and bottom is oriented to centering ring and is set in rotor bottom, on
The central axis that the central axis of portion's righting-oriented ring and bottom are oriented to centering ring all overlaps with the central axis of stator.
The intracavitary at described stator both ends is designed with mounting platform, and the lower end that top is oriented to centering ring is placed on stator
On the mounting platform of portion's intracavitary, the lower end for the upper box cupling being connected with stator threaded upper ends is pressed on the upper end that top is oriented to centering ring
On face；Bottom is oriented to the upper ends of centering ring on the mounting platform in stator lower chamber, is threadedly coupled with stator lower end
The upper end of lower box cupling is pressed on bottom and is oriented on the lower surface of centering ring.
Described lower box cupling intracavitary is fixed with limiter.
Described top is oriented to centering ring and bottom is oriented to centering ring, is all made up of the cylinder of cylindrical shape, cylinder lumen
Top is provided with horn mouth.
The beneficial effects of the utility model are：Righting-oriented ring is installed in the two ends of rotor of existing all-metal screw pump
With lower righting-oriented ring, the rotor of all-metal screw pump and the gap of stator is kept homogeneous constant, improve pump efficiency, avoid
Rotor and stator wear, and ensure that all-metal screw pump in sand well with higher pump efficiency steady operation, avoid
The generation of holddown phenomenon.
Brief description of the drawings
Fig. 1 is structure schematic cross-sectional view of the present utility model.
In figure：1st, rotor；2nd, upper box cupling；3rd, top is oriented to centering ring；4th, stator；5th, bottom is oriented to centering ring；6th, connect under
Hoop；7th, limiter；8th, rod connector.
Embodiment
Reference picture 1 makes the utility model.A kind of all-metal screw pump with rotor righting function, including stator 4,
Upper box cupling 2, lower box cupling 6 and rotor 1, rotor 1 are arranged on the intracavitary of stator 4, and stator 4 and the gap of rotor 1 coordinate, and the upper end of stator 4 leads to
Cross box cupling 2 to be connected with oil pipe, the upper end of rotor 1 is connected by rod connector 8 with sucker rod, and the lower end of stator 4 passes through lower box cupling 6
It is connected with screen casing, it is characterised in that：The intracavitary top of stator 4 is provided with top and is oriented to centering ring 3, and the intracavitary bottom of stator 4 is provided with bottom
Righting-oriented ring 5, top are oriented to centering ring 3 and are set in the top of rotor 1, and bottom is oriented to centering ring 5 and is set in the bottom of rotor 1, on
The central axis of portion's righting-oriented ring 3 and bottom are oriented to central axis of the central axis of centering ring 5 all with stator 4 and overlapped, from
And ensure that the axis of rotor 1 and the axis of stator 4 overlap, prevent the end of rotor 1 from swinging.
The intracavitary at the described both ends of stator 4 is designed with mounting platform, and the lower end that top is oriented to centering ring 3 is placed on stator
On mounting platform in 4 upper chambers, the lower end for the upper box cupling 2 being connected with the threaded upper ends of stator 4 is pressed on top and is oriented to centering ring 3
Upper surface on；Bottom is oriented to the upper ends of centering ring 5 on the mounting platform in the lower chamber of stator 4, with the lower end spiral shell of stator 4
The upper end of the lower box cupling 6 of line connection is pressed on bottom and is oriented on the lower surface of centering ring 5.
The described intracavitary of lower box cupling 6 is fixed with limiter 7, to detect the installation site of the lower end of rotor 1.
Described top is oriented to centering ring 3 and bottom is oriented to centering ring 5, is all made up of the cylinder of cylindrical shape, cylinder lumen
Top be provided with horn mouth, when being installed in order to rotor 1, guide effect can be played, rotor 1 is passed through.
When using the utility model, top guiding centering ring 3 is placed on the mounting platform in the upper chambers of stator 4,
And compressed with box cupling 2；Bottom guiding centering ring 5 is placed on the mounting platform in the lower chamber of stator 4, and with lower box cupling 6
Compress；Stator 4 is installed in oil well, finally inserted rotor 1 from the upper end of stator 4, when limiter 7 is touched in the lower end of rotor 1,
The installation site of rotor 1 can be adjusted.
Claims (4)
1. a kind of all-metal screw pump with rotor righting function, including stator（4）, upper box cupling（2）, lower box cupling（6）With turn
Son（1）, rotor（1）It is arranged on stator（4）Intracavitary, stator（4）And rotor（1）Gap coordinates, stator（4）Upper end passes through upper box cupling
（2）It is connected with oil pipe, rotor（1）Upper end passes through rod connector（8）It is connected with sucker rod, stator（4）Lower end passes through lower box cupling
（6）It is connected with screen casing, it is characterised in that：Stator（4）Intracavitary top is provided with top and is oriented to centering ring（3）, stator（4）Intracavitary bottom
Centering ring is oriented to provided with bottom（5）, top is oriented to centering ring（3）It is set in rotor（1）Top, bottom are oriented to centering ring（5）Set
It is located at rotor（1）Bottom, top are oriented to centering ring（3）Central axis and bottom be oriented to centering ring（5）Central axis all with
Stator（4）Central axis overlap.
A kind of 2. all-metal screw pump with rotor righting function according to claim 1, it is characterised in that：Described
Stator（4）The intracavitary at both ends is designed with mounting platform, and top is oriented to centering ring（3）Lower end be placed on stator（4）Upper chambers
On interior mounting platform, with stator（4）The upper box cupling of threaded upper ends connection（2）Lower end be pressed on top be oriented to centering ring（3）
Upper surface on；Bottom is oriented to centering ring（5）Upper ends in stator（4）On mounting platform in lower chamber, with stator（4）
The lower box cupling of lower end threaded connection（6）Upper end be pressed on bottom be oriented to centering ring（5）Lower surface on.
A kind of 3. all-metal screw pump with rotor righting function according to claim 1, it is characterised in that：Described
Lower box cupling（6）Intracavitary is fixed with limiter（7）.
A kind of 4. all-metal screw pump with rotor righting function according to claim 1, it is characterised in that：Described
Top is oriented to centering ring（3）Centering ring is oriented to bottom（5）, all it is made up of the cylinder of cylindrical shape, the top of cylinder lumen is provided with
Horn mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840863.9U CN206972506U (en) | 2017-07-12 | 2017-07-12 | A kind of all-metal screw pump with rotor righting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840863.9U CN206972506U (en) | 2017-07-12 | 2017-07-12 | A kind of all-metal screw pump with rotor righting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972506U true CN206972506U (en) | 2018-02-06 |
Family
ID=61402181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720840863.9U Active CN206972506U (en) | 2017-07-12 | 2017-07-12 | A kind of all-metal screw pump with rotor righting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972506U (en) |
-
2017
- 2017-07-12 CN CN201720840863.9U patent/CN206972506U/en active Active
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