CN216617490U - Multistage overflow gas-liquid cyclone separation device - Google Patents
Multistage overflow gas-liquid cyclone separation device Download PDFInfo
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- CN216617490U CN216617490U CN202123174436.7U CN202123174436U CN216617490U CN 216617490 U CN216617490 U CN 216617490U CN 202123174436 U CN202123174436 U CN 202123174436U CN 216617490 U CN216617490 U CN 216617490U
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Abstract
The utility model relates to a multistage overflow gas-liquid cyclone separation device which comprises an overflow outlet, a mixed phase liquid inlet, a columnar cyclone cavity, a first-stage outflow pipe, a second-stage outflow pipe, a first-stage overflow pipe, a spiral flow channel and a second-stage overflow pipe. The welding of overflow exit end face has the ring flange, overflow export and one-level overflow pipe coaxial coupling, and the one-level overflow pipe is connected with column whirl chamber coaxial coupling, and spiral runner welded mounting is on the one-level overflow pipe, the embedded second grade overflow pipe of one-level overflow pipe, and the column whirl chamber links to each other with the second grade overflow pipe is coaxial, and the second grade overflow pipe adopts the ring flange to be connected with the second grade outflow pipe. The utility model is provided with a primary overflow to enable the gas phase to overflow for the first time, the gas phase is subjected to secondary overflow by utilizing the combined action of the lifting cone and the secondary overflow pipe, and the liquid accumulation at the bottom of the cavity body caused by the bottom of the columnar vortex cavity is prevented by utilizing the streamline outflow hole. The device has simple structure, convenient installation and small occupied area, and can improve the separation efficiency.
Description
Technical Field
The utility model relates to a separation device used in the fields of petroleum, chemical engineering and environmental protection, in particular to a novel multistage overflow gas-liquid cyclone separation device.
Background
As the development of oil fields in China enters the middle and later stages, the formation energy is obviously reduced, and produced liquid of the oil fields carries a large amount of impurities such as gas, water, sand and the like besides crude oil. The existence of the produced liquid associated gas not only reduces the recovery rate of oil recovery at the well mouth but also has negative influence on the oil-water separation effect, the existence of the gas also reduces the production efficiency of the pump, and the produced liquid mixed with the gas can influence the accuracy of flow measurement, and if combustible gas is mixed in the produced liquid, great potential safety hazard can be formed to production. In order to meet the oil well yield measurement, the separator is used as an essential device and has the characteristics of simple and compact structure, easiness in installation, low energy consumption, high separation efficiency and the like. Common gas-liquid separation modes comprise gravity settling, filtering separation and inertia separation, wherein the cyclone separation has the advantages of high efficiency, short retention time and the like, and is widely applied to underground gas-liquid separation and offshore natural gas-liquid separation. The separation efficiency is an important index for measuring the performance of the separator, and a reasonable structural design is crucial to develop a gas-liquid separator with high separation efficiency. The existing part of oil fields adopt gas flooding technologies such as carbon dioxide and the like to improve the extraction rate, the gas-liquid ratio of the oil well is higher at the moment, and if effective degassing and gas prevention measures are not adopted, the oil well production is increasingly obviously influenced. Consequently with the effectual separation of associated gas in the extraction liquid be the problem that needs the solution at present urgently, for this reason, utility model designs a with the novel gas-liquid cyclone of gaseous secondary overflow device, greatly reduced a series of influences that gaseous brought, to a great extent has improved separation efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defect that the traditional cyclone separation device cannot effectively discharge gas, thereby reducing a series of influences caused by pump efficiency and gas and avoiding liquid accumulation at the bottom of a cavity body caused by the bottom of a cylindrical cyclone separation cavity.
The technical scheme of the utility model a provide a multistage overflow gas-liquid cyclone separation device, including overflow export, mixed phase inlet, column whirl chamber, one-level outflow pipe, second grade outflow pipe, one-level overflow pipe, spiral runner and second grade overflow pipe, its characterized in that:
the top end of the axial direction is provided with an overflow outlet, and the top end of the overflow outlet is welded with a flange plate; the overflow outlet and the first-stage overflow pipe are connected with each other through a flange plate, the overflow outlet is communicated with the first-stage overflow pipe, the spiral flow channel is welded and installed on the first-stage overflow pipe, the second-stage overflow pipe is embedded in the first-stage overflow pipe, the second-stage overflow pipe is communicated with the overflow pipe outlet, and a rotational flow field formed by the first-stage overflow pipe and the spiral flow channel is embedded in the columnar rotational flow cavity and is closely connected with the inner wall of the columnar rotational flow cavity.
The mixed liquid inlet is installed with a cyclone separation device by inclining 30 degrees relative to the axial direction, a flange plate is welded on the end face of the mixed liquid inlet, a first-stage outflow pipe is radially installed at the bottom of the columnar cyclone separation cavity, and an external flange plate is connected with a second-stage outflow branch pipe. The columnar cyclone separation cavity is connected with the second-stage overflow pipe through a flange plate, a streamline is arranged on the connected flange plate to discharge and communicate the columnar cyclone separation cavity with the second-stage overflow pipe, and the second-stage overflow pipe is connected with the second-stage outflow pipe through the flange plate.
Furthermore, the columnar rotational flow cavity comprises a spiral flow channel, a primary overflow pipe and a secondary overflow pipe, the secondary overflow pipe is mutually connected with the columnar rotational flow separation cavity through a flange plate, and a flow line outflow hole is formed in the end face of the flange plate;
the second-stage overflow pipe is provided with a conical sieve hole pipe and a long guide pipe, and the long guide pipe is communicated with the large cylindrical overflow hole.
Furthermore, the end surface of the flange plate of the secondary outflow pipe is provided with a lifting cone and an outflow hole; one end of the outflow hole is communicated with the second-stage outflow pipe, and the other end of the outflow hole is communicated with the second-stage overflow pipe; the secondary outflow branch pipe and the primary outflow pipe are connected with each other through a flange plate.
Furthermore, one end of the streamline outflow hole is communicated with the bottom of the columnar vortex cavity, and the other end of the streamline outflow hole is communicated with the secondary overflow pipe.
Furthermore, the lifting cone is composed of a long cone end, the lower part of the lifting cone is welded on the end surface of a flange plate of the secondary outflow pipe, and the cone tip at the upper part of the lifting cone is flush with the conical sieve hole pipe in the secondary overflow pipe.
Furthermore, an overflow circular hole and an overflow groove are formed in the primary overflow pipe; the overflow outlet is welded with a flange plate, the mixed phase inlet is welded with a flange plate, and the secondary outlet pipe is welded with a flange plate.
Furthermore, the small cylindrical overflow hole and the large cylindrical overflow hole are both communicated with the overflow outlet
The utility model has the following beneficial effects:
(1) the gas-liquid cyclone separation device provided by the utility model can discharge gas phase to the maximum extent, reduce or even eliminate negative effects caused by the gas phase, and further improve the separation efficiency. The device has the advantages of simple structure, high separation efficiency, strong practicability and higher feasibility.
(2) The cyclone separation device is innovative in structure, the secondary overflow device is added to the cyclone separation device, so that gas phase is fully discharged to reduce the influence possibly caused by the gas phase, the streamline outflow hole is formed in the flange plate of the secondary overflow pipe, liquid phase is prevented from causing cavity liquid accumulation at the bottom of the cylindrical cyclone separation cavity, and the purpose of improving the separation efficiency is achieved.
(3) In view of the separation situation of the conventional cyclone, a multi-stage series connection mode is adopted to improve the separation efficiency of the cyclone. In the actual use process, the overflow port and other post-treatment equipment need to be connected to purify the overflowing medium again, but the final achieved effect is quite satisfactory, and the cost is increased.
(4) The liquid inlet, the overflow port and the underflow port of the scheme are provided with flange plates, so that the device is conveniently connected with other equipment. And the overflow outlet, the columnar vortex cavity, the primary overflow pipe, the secondary overflow pipe and the secondary outflow pipe are all provided with flange plates, and the five parts are also connected through the flange plates. In addition, the design of lifting the awl has also played the positive action to the whirl separation to a certain extent, and the design of streamline efflux hole prevents to cause the cavity hydrops in column whirl separation chamber bottom.
Description of the drawings:
FIG. 1 is an overall appearance diagram of a novel multistage overflow gas-liquid cyclone separation device;
FIG. 2 is an axial sectional view of a novel multistage overflow gas-liquid cyclone separation device;
FIG. 3 is an overall exploded view of a novel multistage overflow gas-liquid cyclone separation device;
FIG. 4 is a sectional view of an overflow outlet of the novel multistage overflow gas-liquid cyclone separation device;
FIG. 5 is a sectional view of a cylindrical cyclone chamber of the novel multi-stage overflow gas-liquid cyclone separation device;
FIG. 6 is a sectional view of a cyclone separation field of the novel multi-stage overflow gas-liquid cyclone separation device;
FIG. 7 is an axial sectional view of a secondary overflow pipe of the novel multistage overflow gas-liquid cyclone separation device;
FIG. 8 is a sectional view of the outlet pipe of the novel multi-stage overflow gas-liquid cyclone separation device.
Wherein: 1-overflow outlet, 2-mixed phase liquid inlet, 3-column vortex cavity, 4-first-stage outflow pipe, 5-second-stage outflow pipe, 6-first-stage overflow pipe, 7-spiral flow channel, 8-second-stage overflow pipe, 9-small-column overflow hole, 10-large-column overflow hole, 11-streamline outflow hole, 12-lifting cone, 13-second-stage outflow branch pipe and 14-outflow hole.
Detailed Description
The utility model will be further described with reference to the accompanying figures 1-8.
As shown in fig. 1 to 8, this embodiment provides a multistage overflow gas-liquid cyclone separation device, which includes an overflow outlet 1, a mixed phase liquid inlet 2, a columnar cyclone chamber 3, a first-stage outflow pipe 4, a second-stage outflow pipe 5, a first-stage overflow pipe 6, a spiral flow channel 7, and a second-stage overflow pipe 8. The axial top end is provided with an overflow outlet 1, and the top end of the overflow outlet 1 is welded with a flange plate which can be used for connecting other equipment. Overflow outlet 1 and 6 flange interconnect for one-level overflow pipe, overflow outlet 1 communicates with each other with 6 for small circle post overflow hole 9 of one-level overflow pipe, spiral flow channel 7 is welded mounting on one-level overflow pipe 6, the embedded one-level overflow pipe 6 in of second grade overflow pipe 8, second grade overflow pipe 8 communicates with each other with overflow outlet 1 through big cylinder overflow hole 10, the whirl scene that one-level overflow pipe 6 and spiral flow channel 7 are constituteed is embedded in cylindrical whirl chamber 3, and closely links to each other with the inner wall of cylindrical whirl chamber 3.
The columnar rotational flow cavity 3 comprises a spiral flow passage 7, a primary overflow pipe 6 and a secondary overflow pipe 8, the secondary overflow pipe 8 is mutually connected with the columnar rotational flow separation cavity 3 through a flange plate, and a flow line outflow hole 11 is formed in the end face of the flange plate;
the secondary overflow pipe 8 is provided with a conical sieve hole pipe and a long guide pipe, and the long guide pipe is communicated with a large cylindrical overflow hole 10.
The end surface of the flange of the secondary outflow pipe 5 is provided with a lifting cone 12 and an outflow hole 14; one end of the outflow hole 14 is communicated with the secondary outflow pipe 5, and the other end is communicated with the secondary overflow pipe 8; the secondary outflow branch pipe 13 and the primary outflow pipe 4 are connected with each other through a flange.
One end of the streamline outflow hole 11 is communicated with the bottom of the columnar vortex cavity 3, and the other end is communicated with the secondary overflow pipe 8.
The lifting cone 12 is composed of a long cone end, the lower part of the lifting cone is welded on the end surface of a flange plate of the secondary outflow pipe 5, and the cone tip of the upper part of the lifting cone is flush with the conical sieve hole pipe in the secondary overflow pipe 8.
The mixed item liquid inlet 2 is installed with a cyclone separation device by inclining 30 degrees relative to the axial direction, a flange plate is welded on the end face of the mixed item liquid inlet 2 and can be conveniently connected with other devices, the primary outflow pipe 4 is radially installed at the bottom of the columnar cyclone separation cavity 3, and the external flange plate is connected with the secondary outflow branch pipe 13. The columnar cyclone separation cavity 3 is connected with the second-stage overflow pipe 8 through a flange plate, a streamline outflow 11 is arranged on the connected flange plate to communicate the columnar cyclone separation cavity 3 with the second-stage overflow pipe 8, and the second-stage overflow pipe 8 is connected with the second-stage outflow pipe 5 through the flange plate. This gas-liquid cyclone is through being equipped with overflow circular port and overflow launder on one-level overflow pipe 6, lets cyclone's gaseous phase carry out the overflow for the first time through small circle post overflow hole 9 through the inside of one-level overflow pipe 6, then utilizes lifting cone 12 to carry out the second time overflow through big post overflow hole 10 with the gaseous phase through the circular cone sieve mesh on the second grade overflow pipe 8 when remaining gaseous phase. Be equipped with one-level outflow pipe 4 and second grade branch pipe 13 and go out to flow for the first time to the liquid phase at the lower extreme of column whirl separation chamber 3, be equipped with streamline outflow hole 11 and go out through second grade outflow pipe 5 and flow for the second time in column whirl separation chamber 3 bottoms, avoid residual liquid phase to cause the hydrops in column whirl chamber 3 bottoms. The efficiency of the cyclone separation device after the secondary overflow is increased can reach more than 90 percent, and can be further improved.
The following describes the structure and operation of the cyclone separator:
fig. 2 is an axial sectional view of a multistage overflow gas-liquid cyclone separation device, and the internal structure and components of the multistage overflow gas-liquid cyclone separation device mainly comprise a primary overflow pipe 6, a spiral flow passage 7, a secondary overflow pipe 8, a small cylindrical overflow hole 9, a large cylindrical overflow hole 10, a streamline outflow hole 11 and a lifting cone 12. The gas-liquid mixed phase medium enters the cyclone cavity from the liquid inlet 2, the mixed phase rapidly rotates in the cyclone cavity, the liquid phase is tightly attached to the inner wall of the cyclone cavity under the action of centrifugal force, centripetal buoyancy and fluid drag force, the gas phase is gathered at the axial middle part of the cyclone, the liquid phase is discharged through the secondary discharge pipe 5, and the gas phase is discharged through the overflow outlet 1.
FIG. 3 is an overall exploded view of a multistage overflow gas-liquid cyclone separator. All the components of the device can be seen in the figure. The overflow outlet 1 is welded with a flange plate, the mixed phase inlet 2 is welded with a flange plate, and the secondary outlet pipe 5 is also welded with a flange plate, so that the purpose is to be connected with other devices conveniently.
Fig. 4 is a cross-sectional view of an overflow port of a multistage overflow gas-liquid cyclone separation device, wherein a small cylindrical overflow hole 9 and a large cylindrical overflow hole 10 are both communicated with an overflow outlet 1.
FIGS. 5, 6 and 7 are sectional views of a multistage overflow gas-liquid cyclone separator, in which the three parts are connected to each other by a flange as a main body of the cyclone separator. The mixed phase enters a cyclone field formed by a spiral flow channel 7 and a primary overflow pipe 6 through a mixed phase inlet 2 to carry out cyclone separation, the gas phase carries out primary overflow through an overflow hole and an overflow groove on the primary overflow pipe 6 through a small cylindrical hole 9, and part of the gas phase carries out secondary overflow through a conical sieve pore pipe on a secondary overflow pipe 8 through a large cylindrical overflow pipe 10. The cylindrical cyclone separation cavity 3 is communicated with the secondary overflow pipe 8 through the streamline outflow hole 11, and a flange plate is arranged outside the primary outflow pipe 4.
Fig. 8 is a sectional view of an outlet of a multistage overflow gas-liquid cyclone separator, and the internal structure and components of the multistage overflow gas-liquid cyclone separator mainly include a lifting cone 12, an outlet hole 14, and a secondary outlet pipe 5. The lifting cone 12 acts to give the gas phase a lifting force. The liquid phase is discharged through the outlet orifice 14 and the secondary outlet pipe 5.
The operation of the device is described as follows:
referring to fig. 1-8, a cyclone separates multiphase material in a flow field using the principle of centrifugal settling. The gas-liquid mixed phase enters the columnar rotational flow cavity 3 through the mixed phase liquid inlet 2 at a certain speed to perform rotational flow, and then the mixed phase performs rapid rotational motion in the rotational flow cavity 3 to form double-layer rapid rotational flow, wherein the outer layer is downward rotational flow, and the inner layer is upward rotational flow.
Because of different densities among the media, the centrifugal force, centripetal buoyancy and fluid drag force are different in magnitude, a strong vortex is formed and is divided into an underflow part and an overflow part, the underflow part is a liquid phase part, the overflow part is a gas phase part, the gas phase flows through the inner part of the first-stage overflow pipe 6 and flows through the small cylindrical overflow hole 9 for the first time, and when the residual gas phase exists, the gas phase flows through the conical sieve holes on the second-stage overflow pipe 8 and flows through the large cylindrical overflow hole 10 for the second time by the lifting cone 12. The liquid phase is equipped with one-level outflow pipe 4 and second grade branch pipe 13 at the lower extreme of column cyclone separation chamber 3 and goes out to flow for the first time to the liquid phase, is equipped with streamline efflux hole 11 and goes out through second grade outflow pipe 5 and go out to flow for the second time in column cyclone separation chamber 3 bottom.
The utility model provides a multistage overflow gas-liquid cyclone separation device: utilize the secondary overflow can be fine go out the gaseous phase overflow, utilize one-level outflow pipe and second grade outflow pipe can discharge the liquid phase fast, utilize the streamline outflow hole can avoid remaining liquid phase at the cavity hydrops to reach the purpose that improves separation efficiency. The device has simple and compact structure, high separation efficiency, strong practicability and high feasibility.
While the principles of the present invention have been described in detail in connection with the preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing embodiments are merely illustrative of exemplary implementations of the present invention and are not limiting of the scope of the present invention. The details of the embodiments are not to be construed as limitations on the scope of the present invention, and any obvious modifications, such as equivalent changes, simple substitutions, etc., based on the technical solution of the present invention, are within the scope of the present invention.
Claims (7)
1. The utility model provides a multistage overflow gas-liquid cyclone separation device, includes overflow export (1), mixed phase inlet (2), column whirl chamber (3), one-level outflow pipe (4), second grade outflow pipe (5), one-level overflow pipe (6), spiral runner (7) and second grade overflow pipe (8), its characterized in that:
an overflow outlet (1) is arranged at the top end of the axial direction, and a flange plate is welded at the top end of the overflow outlet (1); the overflow outlet (1) is connected with the primary overflow pipe (6) by a flange plate, the overflow outlet (1) is communicated with the primary overflow pipe (6), the spiral flow channel (7) is welded and installed on the primary overflow pipe (6), the secondary overflow pipe (8) is embedded in the primary overflow pipe (6), the secondary overflow pipe (8) is communicated with the overflow outlet (1), and a rotational flow field formed by the primary overflow pipe (6) and the spiral flow channel (7) is embedded in the columnar rotational flow cavity (3) and is tightly connected with the inner wall of the columnar rotational flow cavity (3);
the mixing inlet (2) adopts relative axial inclinationRamp 30°The cyclone separation device is installed, a flange is welded on the end face of the mixing inlet (2), the primary outflow pipe (4) is radially installed at the bottom of the columnar cyclone cavity (3), and the external flange is connected with the secondary outflow branch pipe (13); the columnar vortex cavity (3) is connected with the secondary overflow pipe (8) through a flange plate, a streamline outflow hole (11) is formed in the connected flange plate to communicate the columnar vortex cavity (3) with the secondary overflow pipe (8), and the secondary overflow pipe (8) is connected with the secondary outflow pipe (5) through the flange plate.
2. The multi-stage overflow gas-liquid cyclone separation device according to claim 1, wherein:
the columnar rotational flow cavity (3) comprises a spiral flow passage (7), a primary overflow pipe (6) and a secondary overflow pipe (8), the secondary overflow pipe (8) is mutually connected with the columnar rotational flow cavity (3) through a flange plate, and the end surface of the flange plate is provided with a flow line outflow hole (11);
the secondary overflow pipe (8) is provided with a conical sieve hole pipe and a long guide pipe, and the long guide pipe is communicated with the large cylindrical overflow hole (10).
3. The multi-stage overflow gas-liquid cyclone separation device according to claim 1, wherein:
the end surface of the flange plate of the secondary outflow pipe (5) is provided with a lifting cone (12) and an outflow hole (14); one end of the outflow hole (14) is communicated with the secondary outflow pipe (5), and the other end is communicated with the secondary overflow pipe (8); the secondary outflow branch pipe (13) and the primary outflow pipe (4) are connected with each other through a flange.
4. The multi-stage overflow gas-liquid cyclone separation device according to claim 2, wherein:
one end of the streamline outflow hole (11) is communicated with the bottom of the columnar vortex cavity (3), and the other end is communicated with the secondary overflow pipe (8).
5. The multi-stage overflow gas-liquid cyclone separating device according to claim 3, wherein:
the lifting cone (12) is composed of a long cone end, the lower part of the lifting cone is welded on the flange plate end surface of the secondary outflow pipe (5), and the cone tip of the upper part of the lifting cone is parallel and level to the conical sieve hole pipe in the secondary overflow pipe (8).
6. The multi-stage overflow gas-liquid cyclone separation device according to claim 1, wherein:
an overflow circular hole and an overflow groove are arranged on the primary overflow pipe (6); a flange plate is welded at the overflow outlet (1), a flange plate is welded at the mixed phase liquid inlet (2), and a flange plate is welded at the secondary flow outlet pipe (5).
7. The multi-stage overflow gas-liquid cyclone separation device according to claim 1, wherein:
the small cylindrical overflow hole (9) and the large cylindrical overflow hole (10) are both communicated with the overflow outlet (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123174436.7U CN216617490U (en) | 2021-12-07 | 2021-12-07 | Multistage overflow gas-liquid cyclone separation device |
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| CN202123174436.7U CN216617490U (en) | 2021-12-07 | 2021-12-07 | Multistage overflow gas-liquid cyclone separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398095A (en) * | 2023-06-08 | 2023-07-07 | 陕西思越石油装备制造工程有限公司 | Ground vortex drainage device |
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2021
- 2021-12-07 CN CN202123174436.7U patent/CN216617490U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116398095A (en) * | 2023-06-08 | 2023-07-07 | 陕西思越石油装备制造工程有限公司 | Ground vortex drainage device |
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