CN2284303Y - Screw arbor of double screw oil-gas two-phase mixing transporting pump - Google Patents
Screw arbor of double screw oil-gas two-phase mixing transporting pump Download PDFInfo
- Publication number
- CN2284303Y CN2284303Y CN 96242912 CN96242912U CN2284303Y CN 2284303 Y CN2284303 Y CN 2284303Y CN 96242912 CN96242912 CN 96242912 CN 96242912 U CN96242912 U CN 96242912U CN 2284303 Y CN2284303 Y CN 2284303Y
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- China
- Prior art keywords
- section
- double
- oil
- gas
- screw rod
- 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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- Rotary Pumps (AREA)
- Compressor (AREA)
Abstract
The utility model relates to a screw rod for a double screw rods type oil-gas two-phase mixing transporting pump, which is used for a conveying fluid pump for petroleum and natural gas two-phase mixing pump pressure in an oil field, belonging to the technical field of a mechanical engineering. The utility model is composed of a left and a right working sections machined by the same cylindrical bar material, a connecting section, a transition section, a sealing working section, a support section, a locking section and a transmission section. The left and the right working sections are of trapezoidal double screw wires shape with taper, the rotation directions of the double screw wires shape are opposite, and the lift angle of the screw wires is 4 deg to 10 deg. The utility model has the advantages that productivity in the process of oil exploitation and transportation is raised, production cost is reduced, vibration can be reduced, and noise is reduced.
Description
The utility model belongs to mechanical engineering technical field, further relates to a kind of screw rod that is used for oil field PetroChina Company Limited., rock gas two-phase mixing pump pressure conveyance fluid pump.
Oil is in the process of exploitation and conveying, because pressure, the continuous variation of factors such as temperature, always have a large amount of accompanying gas, and present oil-conveying device cisco unity malfunction under the situation that the oil gas two-phase is mixed, can't carry out oil and gas multiphase flow, therefore, oil gas mixing conveying technology is not also applied at present in China, its main cause is because oil gas has different compression ratios, different viscosity, characteristics such as density, make to mix when the transporting fluid medium pressurizes in pump chamber to produce very big vibration, thereby cause the efficient that transports pump to reduce greatly, the lost of life, functional reliability descends.The oil gas mixed medium vibrative basic reason of pressurizeing simultaneously in pump chamber is that the characteristic of oil gas two-phase medium differs bigger, thereby the impact force action that the inflate compression of gas in pressure process produces causes vibration on screw rod.The two screw pump that is used for conveyance fluid at present also adopts double-screw structure, but because the structure of screw rod and the characteristic that dimensional parameters is not suitable for gas mixture, so can not be used for the conveying of gas mixture, otherwise the life-span of screw rod is shortened greatly.
The purpose of this utility model is to provide the new screw in a kind of oil gas multiphase transport pump, improving manufacturing efficiency in petroleum production and the course of conveying, to reduce production costs, and can reach the purpose that reduces vibration, reduces noise.
It is have tapering trapezoidal that the utility model is included in the outer surface that processes on the cylindrical bar, rotation direction is opposite, the angle of spiral be 4 °～10 ° double spiral shape about linkage section between two active sections and the active section, active section tapering small end is near linkage section, a left side, side is processed with changeover portion outside right two active sections, the changeover portion outside is the seal operation section that is processed with keyway, the seal operation section outside is a supporting section, the right-hand member supporting section outside is the threaded locking section of processing, the left end supporting section outside is the transmission section that is processed with keyway, and the transmission section outside is the threaded locking section of processing.
The utility model will be further described below in conjunction with accompanying drawing.
Accompanying drawing 1 is a structural representation of the present utility model.
The utility model is made of eight parts, and each part processes on same cylindrical bar respectively successively, and basic shape is the cylinder bodily form, connects naturally successively between the each several part.Be processed with the double helix of 4 °～10 ° of the trapezoidal angles of spiral on the periphery of left side active section 3 and right active section 5, the rotation direction of the helix of left side active section 3 and right active section 5 is opposite, and in left active section 3 and right active section 5 scope separately, be processed with tapering, left side active section 3 and right active section 5 couple together by linkage section 4, left side active section and right active section and the close linkage section 4 of tapering small end separately, linkage section 4 is processed to the cylinder bodily form, its diameter is less than the diameter of left active section 3 and right active section 5, be processed with left changeover portion 7 in left active section 3 outsides, left side changeover portion 7 is processed to the cylinder bodily form, its diameter less than left active section 3 greater than the diameter of left seal section 6, in the outside of changeover portion 7 are the left seal operation sections 6 that are processed with keyway, seal operation section 6 outsides, a left side are left supporting sections 2, the supporting section outside, a left side is the transmission section 1 that is processed with keyway, transmission section 1 is connected with transferring power with driving gear by key, the size of this section is directly proportional with the size of input power, and transmission section 1 outside is the threaded left side locking of processing section 8.Similarly, right active section 5 is processed with right transition in the outside, right changeover portion 7 also is processed into the cylinder bodily form, its diameter less than right active section 5 greater than the diameter of right seal section 6, right changeover portion 7 outsides are the right seal operation section 6 that is processed with keyway equally, right seal operation section 6 is used to install seal arrangement with left seal operation section 6, and right seal operation section 6 outsides are right supporting sections 2, and right supporting section 2 and left supporting section 2 are used to install rolling bearing.Right supporting section 2 outsides are the threaded right locking sections 8 of processing.
The utility model groundwork process is to be finished by the active section of two sections trapezoid spiral lines, and when mixing defeated pump operation, the oily gentle engagement space that enters the spiral of screw rod respectively from the two ends of screw rod active section in the oil suction chamber is taken oil pocket to and is discharged from by spiral.
The utility model is owing to adopted new structure, make and be transmitted medium and in the pump pressure process, do not produce fluctuation, thereby eliminated gas compression and the expansion in the mixed medium, eliminated the vibration that mixes defeated pump, pump work efficient and working life have been improved, development of the present utility model and the application in oil-gas mixed delivery pump still belong to the first time, and it not only can be used for oil and gas multiphase flow, and can be used for the conveying of other various air containing fluids.
Claims (4)
1, double-screw type oil gas multiphase transport pump screw rod, it comprise process on the cylindrical bar have a keyway transmission section, the left and right sides active section that left and right sides supporting section, intermediate portion connect is characterized in that; The outer surface processing of described active section has the trapezoidal double helix of tapering, and the tapering small end is near middle linkage section, and the supporting section outside in the described left and right sides is processed with bearings section and seal operation section near the active section position.
2, double-screw type oil gas multiphase transport pump screw rod according to claim 1 is characterized in that: 4 °～10 ° of the lift angles of the trapezoidal double helix of described active section.
3, double-screw type oil gas multiphase transport pump screw rod according to claim 1, it is characterized in that: described bearing working section the inner is processed with the seal operation section, has keyway on the seal operation section.
4, double-screw type oil gas multiphase transport pump screw rod according to claim 1, it is characterized in that: the rotation direction of described left and right sides active section helix is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242912 CN2284303Y (en) | 1996-12-27 | 1996-12-27 | Screw arbor of double screw oil-gas two-phase mixing transporting pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96242912 CN2284303Y (en) | 1996-12-27 | 1996-12-27 | Screw arbor of double screw oil-gas two-phase mixing transporting pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2284303Y true CN2284303Y (en) | 1998-06-17 |
Family
ID=33916742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96242912 Expired - Fee Related CN2284303Y (en) | 1996-12-27 | 1996-12-27 | Screw arbor of double screw oil-gas two-phase mixing transporting pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2284303Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734355A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气股份有限公司 | Underground spiral type trapezoidal sealing pump oil extraction device driven by submersible motor and process |
-
1996
- 1996-12-27 CN CN 96242912 patent/CN2284303Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734355A (en) * | 2020-06-29 | 2020-10-02 | 中国石油天然气股份有限公司 | Underground spiral type trapezoidal sealing pump oil extraction device driven by submersible motor and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |