CN215719495U - Rotary oil-gas mixed transportation pump - Google Patents
Rotary oil-gas mixed transportation pump Download PDFInfo
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- CN215719495U CN215719495U CN202023211595.5U CN202023211595U CN215719495U CN 215719495 U CN215719495 U CN 215719495U CN 202023211595 U CN202023211595 U CN 202023211595U CN 215719495 U CN215719495 U CN 215719495U
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Abstract
The utility model discloses a rotary oil-gas mixed transportation pump, which comprises an air cylinder, a rotor and a main shaft, wherein one end of the main shaft is arranged on the geometric center of the rotor and is arranged in the air cylinder together with the rotor, a pair of sliding vane grooves and a pair of sliding vanes are correspondingly arranged on the air cylinder, springs are arranged in the sliding vane grooves, the sliding vanes are arranged in the sliding vane grooves, the outer side ends of the sliding vanes are tangent to the outer surface of the rotor under the action of the springs, two pairs of working volumes are formed by the inner surface of the air cylinder, the outer surface of the rotor and the sliding vanes, a pair of air inlets and a pair of air outlets are respectively arranged on the air cylinder, and oil discharge valves are respectively arranged in the air outlets. The rotary type mixing and transporting pump has high efficiency, eliminates unbalanced force caused by rotation, has no vibration, stable work, small volume and uniform stress, and always works under the optimal working condition no matter how the oil-gas proportion and the air inlet pressure change; can be used in compressors of various gases, fluid pumps and vacuum pumps.
Description
Technical Field
The utility model relates to a rotary oil-gas mixed transportation pump which can be used in the field of oil-gas mixed transportation, the state of complex change of the mixing ratio of gas and liquid in fluid transportation and the field of vacuum pumps.
Background
The multiphase long-distance transportation of crude oil, associated gas and water in oil field exploitation is a technical problem in oil field mixed transportation, usually, a compressor can only transport gas, an oil pump can only transport liquid, particularly, in mountainous areas, deserts and ocean oil fields, associated gas forms a torch to be burnt in order to reduce investment and engineering quantity, and the torch in the oil field burns to cause great resource waste. The oil and gas mixed transportation not only can greatly save the exploitation cost, simplify the process flow and improve the oil recovery rate, but also can greatly reduce the environmental pollution caused by the carbon emission generated by the combustion of the associated gas and save the energy.
The difficulty of oil and gas mixed transportation is that the mixing ratio of oil and gas cannot be determined in advance, the oil-gas ratio is large for a moment and small for a moment at different moments in the same oil field, and a conventional screw mixed transportation pump has a set compression ratio and is difficult to adapt to the complex working condition with variable oil-gas ratio, or causes insufficient compression ratio or causes accidents due to liquid impact. Specifically, the exhaust port of the screw multiphase pump is a fixed position, and oil gas can be exhausted only when the volume of the element is communicated with the exhaust port. The preset compression ratio can be only conveyed under the condition of working at a certain oil-gas ratio, and once the oil-gas ratio is changed, the insufficient compression is caused, the power is wasted, or an accident is caused by liquid impact.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel rotary type mixing and conveying pump aiming at the defects of the traditional screw mixing and conveying pump.
The technical scheme adopted by the utility model is as follows: the utility model provides a rotation oil gas multiphase pump, includes cylinder, rotor and main shaft, the one end of main shaft is installed on the geometric centre of rotor and is installed in the cylinder together with the rotor, it is equipped with a pair of gleitbretter groove and a pair of gleitbretter to correspond on the cylinder, the gleitbretter inslot is equipped with the spring, and the gleitbretter is installed at the gleitbretter inslot simultaneously, and the outside end of gleitbretter is tangent with the surface of rotor under the effect of spring, the internal surface of cylinder, the surface of rotor and gleitbretter form two pairs of working volumes, are equipped with a pair of air inlet and a pair of gas vent respectively simultaneously on the cylinder, are equipped with the oil drain valve in the gas vent respectively.
Furthermore, the rotor is in an elliptic cylinder shape, the length of the long axis of the ellipse is equal to the length of the inner diameter of the cylinder, and at any moment of movement, the two long axis end faces of the rotor are tangent to the inner wall surface of the cylinder.
Further, the rotor is driven by the main shaft, and the rotation center of the rotor is located at the axis of the cylinder.
Furthermore, one end of each slide sheet is tightly attached to the outer surface of the rotor under the action of a spring along with the rotation of the rotor, and the slide sheets reciprocate in the slide sheet grooves along with the rotation of the rotor.
Furthermore, the outer side ends of the pair of sliding sheets are semicircular, so that oil gas sealing is facilitated, and friction and abrasion between the outer side ends of the pair of sliding sheets and the outer wall surface of the rotor are reduced.
Further, cylinder one side is equipped with air inlet A and gas vent A, and the opposite side is equipped with air inlet B and gas vent B, air inlet A and gas vent A are located the both sides of one of them gleitbretter, and air inlet B and gas vent B are located the both sides of another gleitbretter 5 to air inlet A and air inlet B set up relatively, and gas vent A and gas vent B set up relatively.
Furthermore, the cylinder fixes the cylinder axial cover plate on the shaft side frame through the cylinder bolt, and element volume is formed by the cylinder axial cover plate, the shaft side frame, the sliding plate and the rotor,
furthermore, the shaft side frame is also fixedly connected with a frame which is supported by a base arranged at the bottom,
furthermore, the main shaft is fixedly arranged on the shaft side frame through a pair of bearings, and an axial sealing plate and an axial sealing ring for preventing axial leakage of oil and gas are arranged outside the bearings.
Furthermore, a sealing ring for preventing oil gas from leaking radially is arranged on the rotor.
The utility model has the beneficial effects that: the compressed elementary volume of the rotary oil-gas mixed transportation pump provided by the utility model is always communicated with the exhaust port, and as long as the pressure in the elementary volume is greater than the conveying pressure required by a pipeline, the oil discharge valve can be opened under the action of the elementary volume and the pressure difference of an oil discharge pipeline, so that oil and gas are discharged, and the technical problem of the traditional screw mixed transportation pump is effectively solved.
In addition, the rotary oil-gas multiphase pump has two corresponding volumes in one working cycle to work simultaneously, and has two working cycles in one rotation of the rotor, so that the volume flow is improved, the airflow pulsation is greatly reduced, the stress on the rotor is more uniform, and a flywheel is saved; meanwhile, the geometric center and the rotation center of the rotor are concentric, so that the rotation stability of the mixing and conveying pump is ensured.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
FIG. 1 is a schematic structural diagram of a rotary oil-gas mixture transfer pump;
FIG. 2 is a schematic view of the operation principle of the rotary type oil-gas mixture transfer pump.
Labeled as: 1-air inlet A, 2-air cylinder, 3-rotor, 4-air outlet B, 5-sliding sheet, 6-air inlet B, 7-main shaft, 8-air outlet A, 9-sliding sheet groove, 10-spring, 11-oil drain valve, 12-engine base, 13-sealing ring, 14-air cylinder axial cover plate, 15-engine frame, 16-air cylinder bolt, 17-bearing, 18-axial sealing plate, 19-axial sealing ring and 20-axle side engine frame.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic structural view of a rotary type mixing and transporting pump, in FIG. 1, a cylinder 2 is provided with a cylinder axial cover plate 14 fixed on a shaft side frame 20 through a cylinder bolt 16, a basic volume is formed by the cylinder axial cover plate 14, a sliding plate 5 and a rotor 3, the center of the cylinder 2 is concentric with the rotor 3, a long axis AB of the rotor 3 is equal to the inner diameter of the cylinder 2, when the rotor 3 rotates around a rotation center O of the rotor 3, tangent points A and B are always tangent to the inner wall surface of the cylinder 2, the sliding sheet 5 moves along a sliding sheet groove under the action of a spring 10, the end surface of the sliding sheet is tangent to the outer surface of the rotor 3, a sealing ring 13 arranged on the rotor 3 can prevent oil gas from radially leaking, a frame 15 is fixed on the shaft side frame 20 and supported by a machine base 12, a pair of bearings 17 is fixed on the shaft side frame 20, an axial sealing plate 18 and an axial sealing ring 19 are fixed in the shaft side frame 20 and can be used for preventing oil gas from radially leaking, The gas leaks axially.
Fig. 2 is a schematic view of an operating principle of a rotary type mixing and transporting pump, and in fig. 2, the rotary type mixing and transporting pump includes a cylinder 2, a rotor 3, a main shaft 7, a pair of sliding vanes 5 and a pair of springs 10, the rotor 3 is installed in the cylinder 2, the main shaft 7 is installed on a geometric center of the rotor 3 and is located in the cylinder 2, the cylinder 2 is correspondingly provided with a pair of sliding vane grooves 9 and a pair of sliding vanes 5, the pair of sliding vanes 5 located in the sliding vane grooves 9 are tangent to an outer surface of the rotor 3 under the action of the springs 10, an inner surface of the cylinder 2, an outer surface of the rotor 3, the pair of sliding vanes 5 and an axial cover plate 14 form two pairs of working volumes, the cylinder 2 is respectively provided with a pair of air inlets and a pair of air outlets, and the air outlets are respectively provided with oil discharge valves 11.
In the present invention, the center of rotation of the rotor 3 is at O, the radius of rotation is OA, θ is 0 ° when the long axis of the rotor 3 coincides with the center lines of the pair of sliding plates 5, the rotation direction is clockwise, and when the tangential points a and B cross the intake port a1 and the intake port B6, oil and air enter the pair of crescent cell volumes V formed by the cylinder 2, the rotor 3, and the sliding plates 5 from the intake port a1 and the intake port B6sAnd the tangents A and B with the cylinder 2, rotor 3 and slide 5 form another pair of elementary volumes VdThe volume begins to shrink and the pressure increases, i.e. the cell volume VdCompression is started. When the rotor 3 continues to rotate, V in a pair of elementary volumesdThe oil gas pressure of (2) is continuously increased, and when the rotation angle of the rotor 3 is theta ═ betadTime, a pair of elementary volumes VdThe oil gas pressure reaches the pressure required by the system, and V is in the element volumedThe oil gas in the exhaust valve 11 is pushed by the pressure to be discharged from the exhaust port A8 and the exhaust port B6, betadThe angle is called the exhaust angle, and the other pair of elementary volumes VsIt is continuously enlarged. Due to V in the elementary volumedIs always communicated with the exhaust port A8 and the exhaust port B6, so the oil and gas are not influencedHow the ratio varies, how the inlet pressure of oil or gas varies, V in the volume of the celldThe oil and gas in the pump can not be compressed insufficiently, and liquid impact can not be generated, so that power consumption is saved, accidents caused by liquid impact are avoided, and the technical problem of the traditional screw rod mixing pump is effectively solved.
When the rotation angle θ of the rotor 3 is 180 °, the pair of cell volumes VdIs completely discharged while the other pair of elementary volumes VsThe maximum working volume is reached, whereby it is seen that a cycle of intake, compression and exhaust is completed with a half-turn, i.e. 180 °, of the rotor 3; when the rotor 3 continues to rotate, a second working cycle is started, and when the rotation angle theta of the rotor 3 is 360 degrees, a pair of elementary volumes VdThe oil and gas are discharged completely, and simultaneously the other pair of element volumes VsThe maximum working volume is reached, the second working cycle is completed, and the oil and the gas are sucked, compressed and discharged in turn. As can be seen from fig. 2, the crescent-shaped working volume VsAnd VdThe two-stage air compressor always works at the same time, the secondary working cycle is completed in one rotation of the rotor 3, the flow velocity in the exhaust pipeline is uniform, the pressure pulsation is small, and the efficiency is high.
Referring to fig. 1 and 2, the cylinder 2 is provided with a sliding vane slot 9 for the sliding vane 5 to move, and the sliding vane slot is always cut on the outer surface of the rotor 3 under the action of a spring 10 to prevent the volume V of the high-voltage elementdGas (liquid) leaking into the low-pressure elementary volume VsIn (1).
With reference to fig. 1 and 2, a sealing ring 13 arranged on the rotor 3 prevents the elementary volume VdRadial leakage of gas (liquid) into the volume V of the low-pressure cellsTo improve volumetric efficiency.
Referring to fig. 1 and 2, the axial sealing plate 18 and the axial sealing ring 19 disposed on the main shaft 7 prevent the axial leakage of oil and gas in the volume of the element, thereby improving the volumetric efficiency of the rotary type mixing pump and reducing the environmental pollution caused by the leakage.
Referring to fig. 1 and 2, the rotor 3 and the cylinder 2 are concentric, and the rotation center of the rotor 3 is concentric with the geometric center, so that the operation is smoother.
Referring to fig. 1 and 2, the rotor 3 is directly driven by a main shaft 7 without an eccentric shaft, so that the machining process of the main shaft is simpler than that of the conventional eccentric shaft of the rolling piston compressor.
In summary, the working pressure and the system pressure of the present invention are always adaptive, and when the intake (hydraulic) pressure or the system pressure changes, the working volume V is changeddThe problems of insufficient compression and over-compression cannot occur, the rotary mixed transportation pump is ensured to work under the optimal working condition all the time, and the technical problem that the compressor and the fluid pump cannot work normally due to frequent changes of the air (liquid) inlet pressure of the compressor and the fluid pump is solved.
The mechanism of the utility model has two corresponding working volumes, and the efficiency is doubled compared with the efficiency of the traditional rolling piston type compressor and the traditional rotary compressor; and two working cycles exist in one revolution, so that the gas (liquid) pulsation is smaller than that of the traditional rolling piston type compressor and the traditional rotary compressor (only one working cycle exists in one revolution).
The main parts of the utility model are a circular cylinder, an elliptic cylindrical rotor and a pair of sliding vanes 5, the rotor 3 is concentric with the cylinder 2, the rotation center of the rotor 3 is positioned at the geometric center of the rotor, the long axis of the rotor 3 is equal to the inner diameter of the cylinder 2, the inner wall surface of the cylinder 2 is tangent with the outer surface of the long axis of the rotor 3 all the time, the outer surface of the rotor 3, the inner wall surface of the cylinder 2 and the pair of sliding vanes 5 divide the crescent working volume into corresponding air inlet cavities VsAnd a compression chamber VdWhen the rotor 3 is driven to rotate by the main shaft 7, the air inlet cavity VsThe oil and gas continuously expand and enter the air inlet cavity V from the air inlets 1 and 6sWhile compressing the chamber VdThen continuously reducing to realize compression when the compression cavity VsWhen the oil and gas reach the pressure required by the system, the oil and gas are discharged through the exhaust ports 4 and 8 by pushing a pair of exhaust valves 11 open, and the work is continuous and smooth.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution methods fall within the scope of the present invention.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (9)
1. A rotary oil-gas mixed transportation pump comprises a cylinder (2), a rotor (3) and a main shaft (7), and is characterized in that one end of the main shaft (7) is installed on the geometric center of the rotor (3) and is installed in the cylinder (2) together with the rotor (3), a pair of sliding vane grooves (9) and a pair of sliding vanes (5) are correspondingly arranged on the cylinder (2), springs are arranged in the sliding vane grooves (9), the sliding vanes (5) are installed in the sliding vane grooves (9), the outer side ends of the sliding vanes (5) are tangent to the outer surface of the rotor (3) under the action of the springs (10), the inner surface of the cylinder (2), the outer surface of the rotor (3) and the sliding vanes (5) form two pairs of working volumes, a pair of air inlets and a pair of air outlets are respectively arranged on the cylinder (2), and oil discharge valves (11) are respectively arranged in the air outlets; the cylinder (2) fixes the cylinder axial cover plate (14) on the shaft side rack (20) through the cylinder bolt (16), and the element volume is formed by the cylinder axial cover plate (14), the shaft side rack (20), the sliding sheet (5) and the rotor (3).
2. The rotary oil-gas mixture transfer pump according to claim 1, wherein the rotor (3) is in an elliptic cylinder shape, the length of the long axis of the elliptic cylinder shape is equal to the length of the inner diameter of the cylinder (2), and at any moment of movement, the two long axis end faces of the rotor (3) are tangent to the inner wall surface of the cylinder (2).
3. Rotary oil and gas multiphase pump according to claim 1, characterized in that the rotor (3) is driven by the main shaft (7) and the rotation center of the rotor (3) is located at the axial center of the cylinder (2).
4. The rotary oil-gas mixture transfer pump according to claim 1, wherein the pair of sliding vanes (5) rotate with the rotor (3), one end of the pair of sliding vanes is tightly attached to the outer surface of the rotor (3) under the action of the spring (10), and the pair of sliding vanes reciprocate in the sliding vane grooves (9) along with the rotation of the rotor (3).
5. The rotary oil-gas multiphase pump according to claim 1 or 4, wherein the outer ends of the pair of sliding vanes (5) are semicircular to facilitate oil-gas sealing and reduce friction wear with the outer wall surface of the rotor (3).
6. Rotary oil and gas multiphase pump according to claim 1, wherein the cylinder (2) is provided with an air inlet a (1) and an air outlet a (8) at one side, and an air inlet B (6) and an air outlet B (4) at the other side, the air inlet a (1) and the air outlet a (8) are located at two sides of one sliding vane (5), the air inlet B (6) and the air outlet B (4) are located at two sides of the other sliding vane (5), the air inlet a (1) and the air inlet B (6) are arranged oppositely, and the air outlet a (8) and the air outlet B (4) are arranged oppositely.
7. The rotary oil-gas multiphase pump according to claim 1, wherein the shaft-side frame (20) is further fixedly connected with a frame (15), and the frame (15) is supported by a base (12) provided with a bottom.
8. The rotary oil-gas mixture transfer pump according to claim 1, wherein the main shaft (7) is fixedly mounted on a shaft-side frame (20) through a pair of bearings (17), and an axial seal plate (18) and an axial seal ring (19) for preventing axial leakage of oil and gas are further mounted on the outer side of the bearings (17).
9. The rotary oil-gas multiphase pump according to claim 1, wherein the rotor (3) is provided with a sealing ring (13) for preventing oil-gas from radial leakage.
Priority Applications (1)
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CN202023211595.5U CN215719495U (en) | 2020-12-28 | 2020-12-28 | Rotary oil-gas mixed transportation pump |
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CN202023211595.5U CN215719495U (en) | 2020-12-28 | 2020-12-28 | Rotary oil-gas mixed transportation pump |
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CN215719495U true CN215719495U (en) | 2022-02-01 |
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CN202023211595.5U Active CN215719495U (en) | 2020-12-28 | 2020-12-28 | Rotary oil-gas mixed transportation pump |
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