CN218211459U

CN218211459U - Multiphase flow metering device

Info

Publication number: CN218211459U
Application number: CN202222446483.0U
Authority: CN
Inventors: 林培双; 钱丽娟; 陈忠利
Original assignee: China Jiliang University
Current assignee: China Jiliang University
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-03
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a multiphase flow metering device, which comprises a shell, wherein a piston plate is arranged in the shell, a hydraulic cylinder is arranged on the upper side of the shell, the lower end of the hydraulic cylinder is in power connection with a telescopic rod, the piston plate is fixed on the lower end face of the telescopic rod, a measuring block is fixed in the shell, a base is arranged on the lower side of the shell, a motor is arranged in the base, and an eccentric wheel is arranged on the left side of the motor; simultaneously through measuring water, oil volume through the scale on the measuring block to measure water and respective proportion of oil, with this phase fraction in calculating the oil mixture, each phase separation in the oil mixture is thorough, has improved measurement accuracy, simultaneously the utility model discloses simple structure, the cost is lower, is convenient for promote on a large scale.

Description

Multiphase flow metering device

Technical Field

The utility model relates to a heterogeneous flow measurement correlation technique field specifically is a heterogeneous flow metering device.

Background

The multiphase flow metering technology is mainly used for detecting the velocity measurement, total flow measurement or phase fraction measurement of oil, gas and water phases in petroleum.

The traditional multiphase flow metering device mainly utilizes a separator to separate oil, gas and water in oil and then measures the oil, gas and water one by one, for example, a multiphase flow metering system disclosed in the Chinese utility model with the publication number of CN205826049U mainly comprises a primary separator, a sampler, a sampling fluid separator, a sampling fluid flowmeter, a liquid path flowmeter and the like, and after the multiphase flow separator primarily separates each phase in the oil, each phase is detected by a liquid phase detector and a gas phase detector.

But because the separator in this utility model is less for its separation effect is poor, thereby lead to the phase separation rate that obtains after detecting and actual numerical value to some extent deviation, the measuring result precision is low, and this utility model has used a plurality of flowmeters moreover, thereby leads to its cost-push.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heterogeneous class metering device for overcome the above-mentioned defect among the prior art.

According to the utility model discloses a heterogeneous flow metering device, which comprises an outer shell, be provided with the piston board in the shell, the shell upside is provided with the pneumatic cylinder, pneumatic cylinder lower extreme power is connected with the telescopic link, the piston board is fixed in on the terminal surface under the telescopic link, the shell internal fixation has the measuring block, the shell downside is provided with the base, be provided with the motor in the base, the motor left side is provided with the eccentric wheel.

Beneficially, the shell right flank is fixed with the inlet pipe, the terminal screw-thread fit in inlet pipe right side has sealed lid, be equipped with in the shell and detect the chamber, the inlet pipe left end with it sets up to detect the chamber intercommunication, it is equipped with the bin outlet to detect the chamber downside intercommunication, bin outlet screw-thread fit has the shutoff piece, through rotating the shutoff piece, thereby with the shutoff piece take out in the bin outlet, thereby it is convenient to detect the oil discharge that the intracavity has detected.

Advantageously, the piston plate is in sliding fit with the detection cavity, the hydraulic cylinder is fixed on the upper end face of the casing, the lower side portion of the telescopic rod extends downwards into the detection cavity, and the telescopic rod is in sliding fit with the casing.

Advantageously, an air pressure sensor is fixed on the upper end face of the piston plate, a ventilation cavity which is through up and down is arranged in the piston plate, the lower end of the ventilation cavity is communicated with the detection cavity, the upper end of the ventilation cavity is communicated with the air pressure sensor, and the air pressure sensor can detect air pressure change in a space below the piston plate.

Advantageously, the measuring block is located in the left side wall of the detection cavity, the left side face of the measuring block is marked with a scale, and the measuring block can measure the volume of water and oil in the detection cavity.

Advantageously, four mirror image supporting columns are fixed between the lower end face of the shell and the upper end face of the base.

Beneficially, a motor cavity is formed in the base, an eccentric wheel cavity is formed in the left side of the motor cavity, the motor is fixed on the inner wall of the motor cavity, a motor shaft is in power connection with the left end of the motor, the left portion of the motor shaft extends leftwards to the inside of the eccentric wheel cavity, and the eccentric wheel is fixed on the left end of the motor shaft.

Advantageously, the eccentric wheel is not in a complete circle, the center of gravity of the eccentric wheel is not located on the motor shaft, and the shell can vibrate up and down at high frequency and low amplitude through the rotation of the eccentric wheel.

The utility model has the advantages that: the utility model has the advantages that the piston plate moves upwards, so that the air pressure in the detection cavity is reduced, the gas mixed in the petroleum can be separated from the petroleum, and the air pressure in the cavity is detected by the air pressure sensor, so that the gas content in the petroleum is measured; simultaneously water of piston plate downside, oil mixture, the vibration of high frequency low-range under the rotation of eccentric wheel for the oil that density is little floats and on water, realizes the water-oil separation, then measures water, oil volume through the scale on the measuring block, thereby measures water and oil and accounts for separately comparing, with this phase fraction in calculating the oil mixture, each phase separation in the oil mixture is thorough, has improved measurement accuracy, simultaneously the utility model discloses simple structure, the cost is lower, is convenient for promote on a large scale.

Drawings

Fig. 1 is an external view of the present invention;

figure 2 is a left side view of figure 1 of the present invention;

figure 3 is a rear view of figure 1 of the present invention;

FIG. 4 isbase:Sub>A schematic view of A-A of FIG. 1 according to the present invention;

FIG. 5 is an enlarged, fragmentary, schematic view of the measurement block assembly of FIG. 2 in accordance with the present invention;

figure 6 is an enlarged partial schematic view of the base member of figure 4 in accordance with the present invention;

fig. 7 is a schematic view of B-B in fig. 6 according to the present invention.

In the figure:

10. a housing; 11. a hydraulic cylinder; 12. a feed pipe; 13. a support pillar; 14. a base; 15. a measuring block; 16. a plugging block; 17. a telescopic rod; 18. a detection chamber; 19. a piston plate; 20. a motor; 21. an eccentric wheel cavity; 22. a motor cavity; 23. a motor shaft; 24. An eccentric wheel; 25. a discharge outlet; 26. an air pressure sensor; 27. a vent lumen; 28. and (7) sealing the cover.

Detailed Description

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

To make the objects and advantages of the present invention more apparent, the following detailed description of the present invention, taken in conjunction with the examples, should be understood that the following text is only intended to describe one or several specific embodiments of the present invention, and is not intended to strictly limit the scope of the invention as specifically claimed, and as used herein, the terms top, bottom, left and right are not limited to strict geometric definitions thereof, but rather include tolerances to machining or human error rationality and inconsistency, specific features of such a multiphase flow metering device being elaborated upon below:

example 1:

referring to fig. 1 to 7, a multiphase flow metering device according to an embodiment of the present invention includes a housing 10, a piston plate 19 is disposed in the housing 10, a hydraulic cylinder 11 is disposed on an upper side of the housing 10, a telescopic rod 17 is connected to a lower end of the hydraulic cylinder 11, the piston plate 19 is fixed on a lower end surface of the telescopic rod 17, a measuring block 15 is fixed in the housing 10, a base 14 is disposed on a lower side of the housing 10, a motor 20 is disposed in the base 14, and an eccentric wheel 24 is disposed on a left side of the motor 20;

a feeding pipe 12 is fixed on the right side surface of the shell 10, a sealing cover 28 is in threaded fit with the tail end of the right side of the feeding pipe 12, a detection cavity 18 is arranged in the shell 10, the left end of the feeding pipe 12 is communicated with the detection cavity 18, a discharge hole 25 is communicated and arranged on the lower side of the detection cavity 18, and a blocking block 16 is in threaded fit with the discharge hole 25;

the piston plate 19 is in sliding fit with the detection cavity 18, a circle of sealing ring is fixed in the periphery of the piston plate 19 so as to ensure the sealing between the piston plate 19 and the detection cavity 18, the hydraulic cylinder 11 is fixed on the upper end surface of the shell 10, the lower side part of the telescopic rod 17 extends downwards into the detection cavity 18, and the telescopic rod 17 is in sliding fit with the shell 10;

an air pressure sensor 26 is fixed on the upper end face of the piston plate 19, the air pressure sensor 26 is connected with an electronic display screen through a lead, the electronic display screen is located outside the shell 10 and can display a pressure value detected by the air pressure sensor 26, a ventilation cavity 27 which is communicated up and down is arranged in the piston plate 19, the lower end of the ventilation cavity 27 is communicated with the detection cavity 18, the upper end of the ventilation cavity 27 is communicated with the air pressure sensor 26, and the air pressure sensor 26 is a common DATA-52 air pressure sensor in the market;

the measuring block 15 is positioned in the left side wall of the detection cavity 18, scales are marked on the left side surface of the measuring block 15, and the measuring block 15 is made of transparent glass, so that a user can clearly penetrate through the volume of water and oil in the detection cavity 18;

before measurement, the hydraulic cylinder 11 is started, so that the telescopic rod 17 moves upwards, the detection cavity 18 is driven to move upwards, the air pressure in the space below the piston plate 19 is reduced, and the air in the space above the piston plate 19 can be exhausted through a gap between the telescopic rod 17 and the shell 10;

the telescopic rod 17 stops after moving upwards for a certain distance, at the moment, the air pressure in the space below the piston plate 19 is detected through the air pressure sensor 26, the air pressure is displayed through the electronic display screen, and the pressure value at the moment is recorded;

then, the hydraulic cylinder 11 is reversely actuated so that the piston plate 19 moves down to the initial position;

rotating the sealing cover 28, removing the sealing cover 28 from the right end of the feeding pipe 12, pouring the petroleum sample into the detection cavity 18, and then covering the sealing cover 28 again;

then, the hydraulic cylinder 11 is started again in the forward direction, so that the piston plate 19 moves upwards to stop, the pressure value at the moment is recorded and compared with the pressure value at the previous time, and the pressure value of the difference between the pressure value and the pressure value is the pressure value of the content of the gas mixed in the oil in the space at the lower side of the piston plate 19, so that the content of the gas in the oil sample can be calculated.

Example 2:

this embodiment is based on the previous embodiment and differs from embodiment 1 in that: referring to fig. 1-7, four mirror-image supporting columns 13 are fixed between the lower end surface of the housing 10 and the upper end surface of the base 14;

a motor cavity 22 is arranged in the base 14, an eccentric wheel cavity 21 is arranged on the left side of the motor cavity 22, the motor 20 is fixed on the inner wall of the motor cavity 22, the left end of the motor 20 is in power connection with a motor shaft 23, the left part of the motor shaft 23 extends leftwards into the eccentric wheel cavity 21, and an eccentric wheel 24 is fixed on the left end of the motor shaft 23;

the eccentric wheel 24 is in a non-complete circle shape, and the gravity center of the eccentric wheel is not positioned on the motor shaft 23;

after measuring the gas content in the petroleum sample, the interior of the detection chamber 18 is kept in a negative pressure state;

at this time, the motor 20 is started, so that the motor shaft 23 rotates, and the eccentric wheel 24 is driven to rotate, so that the base 14 generates high-frequency low-amplitude vibration, the high-frequency low-amplitude vibration is transmitted to the shell 10 through the four supporting columns 13, so that the oil-water mixture in the detection cavity 18 generates high-frequency low-amplitude vibration, so that oil with lower density and water with higher density in the mixture are separated from each other, and the oil is positioned on the upper side of the water;

then, the volume of each of the water and the oil is measured by the scale on the measuring block 15, so that the content of the oil and the water in the petroleum sample can be measured, and the phase fraction of the petroleum sample can be calculated by adding the measured gas content.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. Which all fall within the protection scope of the utility model. The protection scheme of the utility model is based on the appended claims.

Claims

1. A multiphase flow metering device comprising a housing (10), characterized in that: be provided with piston board (19) in shell (10), shell (10) upside is provided with pneumatic cylinder (11), pneumatic cylinder (11) lower extreme power is connected with telescopic link (17), piston board (19) are fixed in on telescopic link (17) terminal surface down, shell (10) internal fixation has gauge block (15), shell (10) downside is provided with base (14), be provided with motor (20) in base (14), motor (20) left side is provided with eccentric wheel (24).

2. A multiphase flow metering device according to claim 1, wherein: shell (10) right flank is fixed with inlet pipe (12), the terminal screw-thread fit in inlet pipe (12) right side has sealed lid (28), be equipped with in shell (10) and detect chamber (18), inlet pipe (12) left end with it sets up to detect chamber (18) intercommunication, it is equipped with bin outlet (25) to detect chamber (18) downside intercommunication, bin outlet (25) interior screw-thread fit has shutoff piece (16).

3. A multiphase flow meter according to claim 2, wherein: piston plate (19) with detect chamber (18) sliding fit, pneumatic cylinder (11) are fixed in on shell (10) up end, telescopic link (17) downside part downwardly extending to in detecting chamber (18), telescopic link (17) with shell (10) sliding fit.

4. A multiphase flow metering device according to claim 3, wherein: an air pressure sensor (26) is fixed on the upper end face of the piston plate (19), a ventilation cavity (27) which is through up and down is arranged in the piston plate (19), the lower end of the ventilation cavity (27) is communicated with the detection cavity (18), and the upper end of the ventilation cavity (27) is communicated with the air pressure sensor (26).

5. A multiphase flow meter according to claim 4, wherein: the measuring block (15) is positioned in the left side wall of the detection cavity (18), and scales are carved on the left side surface of the measuring block (15).

6. A multiphase flow metering device according to claim 1, wherein: four supporting columns (13) arranged in a mirror image mode are fixed between the lower end face of the shell (10) and the upper end face of the base (14).

7. A multiphase flow meter according to claim 1, wherein: be equipped with motor chamber (22) in base (14), motor chamber (22) left side is equipped with eccentric wheel chamber (21), motor (20) are fixed in on motor chamber (22) inner wall, motor (20) left end power is connected with motor shaft (23), motor shaft (23) left side part extends to left in eccentric wheel chamber (21), eccentric wheel (24) are fixed in on motor shaft (23) left side end.

8. A multiphase flow metering device according to claim 7, wherein: the eccentric wheel (24) is in a non-complete circle shape, and the gravity center of the eccentric wheel is not positioned on the motor shaft (23).