CN201925173U - Reducing single-screw oil-gas multiphase pump - Google Patents

Reducing single-screw oil-gas multiphase pump Download PDF

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Publication number
CN201925173U
CN201925173U CN2011200122405U CN201120012240U CN201925173U CN 201925173 U CN201925173 U CN 201925173U CN 2011200122405 U CN2011200122405 U CN 2011200122405U CN 201120012240 U CN201120012240 U CN 201120012240U CN 201925173 U CN201925173 U CN 201925173U
Authority
CN
China
Prior art keywords
stator
gas
oil
pump
rotor
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
Application number
CN2011200122405U
Other languages
Chinese (zh)
Inventor
刘斌
杨乐
李宁会
吉效科
张昊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xi'an Haixing Screw Pump Engineering Industry Coltd
Original Assignee
Xi'an Haixing Screw Pump Engineering Industry Coltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xi'an Haixing Screw Pump Engineering Industry Coltd filed Critical Xi'an Haixing Screw Pump Engineering Industry Coltd
Priority to CN2011200122405U priority Critical patent/CN201925173U/en
Application granted granted Critical
Publication of CN201925173U publication Critical patent/CN201925173U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a reducing single-screw oil-gas multiphase pump, which comprises a stator with a spiral hole and an eccentric spiral rotor which is meshed with the stator in the stator, wherein a generatrix or an outer contour line formed by the stator and the rotor is not parallel to the central line of a rotating shaft. Since the generatrix or the outer contour line is not parallel to the central line of the rotating shaft, therefore, a gas can be compressed in the transportation process of the oil gas, the volume of the gas is reduced, and the ratio of oil to gas is reduced, and thus the transportation requirements of a single-screw pump are met, and the technical effects are better.

Description

A kind of reducing list screw rod oil-gas mixed delivery pump
Technical field
The utility model relates to a kind of oil-gas mixed delivery pump, relates in particular to a kind of oil and gas multiphase flow helical rotor pump of high air content.
Background technique
The helical rotor pump oil-gas mixed delivery pump is a kind of interior engagement sealed mode displacement pump at present.
Its working portion is formed with the eccentric helical rotor of its engagement by the stator of double end (or bull) spiral hole with in stator.Drive unit drives the rotor rotation and makes planet gyration by transmission shaft and gimbal joints, moves fed sheet of a media with the closed chamber of stator vestibule and rotor helical-screw engagement back formation.
When the working liquid body in the Seal cage and gas from suction port when exhaust port is made forward and is carried, because exhaust port transfusion supercharging is dammed in outlet.Highly pressurised liquid refluxes to the suction port low pressure area, produces step-down owing to dam by Seal cage the time, thereby reduces capacity of reflux.Capacity of reflux is no more than specified value, and a plurality of Seal cages will make the working liquid body of exhaust port and gas that higher supercharging is arranged.
Because the helical rotor pump stator is a rubber parts, helical rotor pump can only carry oil-gas ratio less than 1: 50 oil gas at present.High air content be oil-gas ratio greater than 1: 50 because oil mass is seldom, tolerance is very big, stator is dry grinded easily, causes rubber to fall piece, damage, helical rotor pump can not be suitable for oil-gas ratio greater than 1: 50 oil and gas multiphase flow.
The model utility content
In order to overcome the deficiencies in the prior art part, the utility model provides a kind of high air content oil and gas multiphase flow reducing helical rotor pump, and described helical rotor pump has overcome above-mentioned technical problem well.
The utility model solves the problems of the technologies described above the technological scheme that adopted as following description:
A kind of reducing list screw rod oil-gas mixed delivery pump, comprise stator with spiral hole and in stator with the eccentric helical rotor of its engagement, bus or the not parallel rotating shaft center of outer contour line that the stator of described reducing list screw rod oil-gas mixed delivery pump and rotor form.
Further, preferred construction is that the closed chamber that described stator and rotor are nibbled and formed reduces vertically gradually.
Further, preferred construction is that described bus or outer contour and running shaft form according to 1: 20 tapering.
Further, preferred construction is that the described entrance section of defeated pump that mixes is greater than the outlet.
The beneficial effect that the utility model has been had after having taked technique scheme such as below:
The first, because described formation bus or the not parallel rotating shaft center of the outer contour line that mixes defeated pump, therefore, gas can compress in the oil gas course of conveying, and gas volume reduces, and oil-gas ratio reduces, thereby satisfies the conveying requirement of helical rotor pump;
The second, owing to taked the stator and the rotor of reducing, can adjust rotor and stator shaft orientation position, prolonged the working life of pump, the interference between rotor and the stator be can suitably reduce, thereby wearing and tearing, life-saving reduced.
The 3rd, because entrance section increases, increased the volumetric efficiency of pump, therefore, in short length, obtain quite high pressure, saved the space of armored pump, solved the problem of the high oil-gas ratio oil and gas multiphase flow in oil field.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, above-mentioned feature and advantage of the present utility model will become apparent and understand easily.
Fig. 1 is the structural representation of the utility model reducing list screw rod oil-gas mixed delivery pump;
Fig. 2 is the outlet figure of the utility model reducing list screw rod oil-gas mixed delivery pump;
Fig. 3 is the entrance section figure of the utility model reducing list screw rod oil-gas mixed delivery pump;
Wherein, reference character: stator 1, rotor 2.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 is the structural representation of the utility model reducing list screw rod oil-gas mixed delivery pump.
As shown in the figure, described reducing list screw rod oil-gas mixed delivery pump, comprise stator 1 with spiral hole and in stator with the eccentric helical rotor 2 of its engagement, existing helical rotor pump stator and rotor form bus and outer profile is parallel to rotating shaft center's line in order to overcome, and pressure is with leaking the shortcoming that reduces gradually between at different levels.
Among the utility model, bus or the not parallel rotating shaft center of outer contour line that the stator 1 of described reducing list screw rod oil-gas mixed delivery pump and rotor 2 form.And among preferred embodiment, the closed chamber that described stator 1 and rotor 2 are nibbled and formed reduces vertically gradually.Therefore, in the oil gas course of conveying, because gas can compress, gas volume reduces, and oil-gas ratio reduces, thereby satisfies the conveying requirement of helical rotor pump.
Among the preferred embodiment, described bus or outer contour and running shaft form according to 1: 20 tapering.
Fig. 2 is the outlet figure of the utility model reducing list screw rod oil-gas mixed delivery pump;
Fig. 3 is the entrance section figure of the utility model reducing list screw rod oil-gas mixed delivery pump.
As can be seen, the described entrance section that mixes defeated pump is greater than the outlet from Fig. 2 and Fig. 3, and therefore, this design can increase the volumetric efficiency of pump, and, in short length, can obtain quite high pressure, saved the space of armored pump.
In addition, owing to taked the stator 1 and the rotor 2 of reducing, therefore, can adjust rotor and stator shaft orientation position, both radial interference or gap change thereupon, thereby have enlarged the using scope of helical rotor pump, be convenient to adjust cooperation and assembling between the pump stator and rotor simultaneously, the user is after screw rod wearing and tearing, and adjustable full employment gap has prolonged working life of pump, can suitably reduce the interference between rotor and the stator, thereby reduce wearing and tearing, life-saving has better technical effect.
A concrete product embodiments specification of the present utility model is as follows:
(1), main oil gas technical parameter is as follows: oil-gas ratio: 1: 80~100
(2), the technical requirements of reducing pump and control system:
The technical parameter of reducing pump: flow: 12m3/h, pressure: 2.4MPa
Supporting power of motor: 22KW.
And described control system has following function:
Stator overtemperature prote function.When stator temperature surpassed a certain temperature, termination of pumping was also reported to the police, and requires showing temperature, and the upper limit can be set arbitrarily, 0~150 ℃ of temperature range.
The overpressure protection system.When outlet pressure is higher than 2.4MPa, report to the police and termination of pumping.
Regulate the frequency of pump according to inlet pressure.When pressure reaches CLV ceiling limit value, reports to the police when electric machine frequency is higher than 50HZ, when pressure was lower than setting value, output frequency is corresponding to be reduced.
This product specification proves that through overtesting the using effect in the oil field is fine, and the rotor gradient can be adjusted arbitrarily, and the size of gradient can determine according to oil-gas ratio size, and then the technical need of satisfied oil-gas ratio 1: 50~100 oil and gas multiphase flow.
It should be noted that; above-mentioned specific embodiment is exemplary; under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description, and these improvement or distortion drop in the protection domain of the present utility model.
It will be understood by those skilled in the art that top specific descriptions just in order to explain the purpose of this utility model, are not to be used to limit the utility model.Protection domain of the present utility model is limited by claim and equivalent thereof.

Claims (4)

1. reducing list screw rod oil-gas mixed delivery pump, comprise stator with spiral hole and in stator with the eccentric helical rotor of its engagement, it is characterized in that bus or the not parallel rotating shaft center of outer contour line that the stator of described reducing list screw rod oil-gas mixed delivery pump and rotor form.
2. reducing list screw rod oil-gas mixed delivery pump according to claim 1 is characterized in that the closed chamber that described stator and rotor are nibbled and formed reduces vertically gradually.
3. reducing list screw rod oil-gas mixed delivery pump according to claim 2 is characterized in that described bus or outer contour and running shaft form according to 1: 20 tapering.
4. according to the arbitrary described reducing list screw rod oil-gas mixed delivery pump of claim 1-3, it is characterized in that the described entrance section of defeated pump that mixes is greater than the outlet.
CN2011200122405U 2011-01-14 2011-01-14 Reducing single-screw oil-gas multiphase pump Expired - Fee Related CN201925173U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200122405U CN201925173U (en) 2011-01-14 2011-01-14 Reducing single-screw oil-gas multiphase pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200122405U CN201925173U (en) 2011-01-14 2011-01-14 Reducing single-screw oil-gas multiphase pump

Publications (1)

Publication Number Publication Date
CN201925173U true CN201925173U (en) 2011-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200122405U Expired - Fee Related CN201925173U (en) 2011-01-14 2011-01-14 Reducing single-screw oil-gas multiphase pump

Country Status (1)

Country Link
CN (1) CN201925173U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107002667A (en) * 2014-11-14 2017-08-01 兵神装备株式会社 Fluid delivery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107002667A (en) * 2014-11-14 2017-08-01 兵神装备株式会社 Fluid delivery system

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110810

Termination date: 20120114