CN115182714A - Offshore oil production platform associated gas recovery unit - Google Patents
Offshore oil production platform associated gas recovery unit Download PDFInfo
- Publication number
- CN115182714A CN115182714A CN202210976994.5A CN202210976994A CN115182714A CN 115182714 A CN115182714 A CN 115182714A CN 202210976994 A CN202210976994 A CN 202210976994A CN 115182714 A CN115182714 A CN 115182714A
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- Prior art keywords
- tank
- gear
- associated gas
- recovery box
- recovery
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- 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.)
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- 238000011084 recovery Methods 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 44
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 24
- 238000005406 washing Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 26
- 239000007787 solid Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses an associated gas recovery device of an offshore oil production platform, which comprises a recovery box body, wherein the top in the recovery box body is rotatably connected with an air inlet pipe, the inner wall of the recovery box body is fixedly connected with a supporting concave seat, a centrifugal cylinder is rotatably connected onto the supporting concave seat, the air inlet pipe is rotatably connected and communicated with the centrifugal cylinder, the lower end of the centrifugal cylinder is rotatably connected with an air outlet pipe, the air outlet pipe is communicated with the centrifugal cylinder, a rotating mechanism for rotating the centrifugal cylinder is installed in the recovery box body, and the recovery box body is provided with a cleaning tank and a separation tank. According to the invention, the circular filter plate is continuously pushed to rotate by the driving mechanism, one surface containing liquid and impurities after the circular filter plate is filtered is continuously transferred to the cleaning tank for cleaning, and the cleaned surface is continuously transferred to the separation tank for separating and filtering associated gas, so that the filter screen can be continuously cleaned, and the long-term cleaning effect of the circular filter plate can be maintained.
Description
Technical Field
The invention relates to the technical field of offshore oil production equipment, in particular to an associated gas recovery device of an offshore oil production platform.
Background
The offshore oil production platform is a platform facility for offshore oil production operation, associated natural gas of low molecular alkanes such as methane, ethane and the like can be generated in the oil production process, and the generated associated gas contains a large amount of impurities, so the associated gas needs to be separated and then recovered.
In the existing associated gas recovery equipment, for example, a device for recovering associated gas of an offshore oil production platform, which is proposed by patent application number "202120974299.6", performs filtration through a filter screen in the separation process when recovering natural gas, and continuously rotates through a rotating plate to scrape off liquid and solid impurities on the filter surface of the filter screen, but along with the continuous use of the device, a large amount of liquid and solid impurities are continuously accumulated on the rotating plate, at this time, the continuous rotation will be difficult to remove the liquid and the impurities on the filter surface of the filter screen, and on the contrary, the liquid and the impurities on the rotating plate will be reattached to the filter screen. Accordingly, the application file provides an offshore oil production platform associated gas recovery device.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an offshore oil production platform associated gas recovery device.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an offshore oil production platform associated gas recovery unit, includes the recovery box, the top rotates in the recovery box and is connected with the intake pipe, fixedly connected with supports the recess on the recovery box inner wall, it is connected with the centrifuge bowl to rotate on the support recess, just the intake pipe rotates with the centrifuge bowl and is connected and communicate, the centrifuge bowl lower extreme rotates and is connected with the outlet duct, just the outlet duct communicates with each other with the centrifuge bowl, install in the recovery box and make centrifuge bowl pivoted slewing mechanism, the washing tank and the separating tank of having seted up of recovery box, just the washing tank communicates with each other through the spread groove with the separating tank, sealed rotation is connected with circular filter plate in the spread groove, and circular filter plate passes through its rotation of actuating mechanism drive, the separating tank passes through air duct and the inside intercommunication of recovery box, top intercommunication has the exhaust tube in the separating tank, the pump cistern has been seted up on the recovery box inner wall, pump cistern and washing tank intercommunication have one-way drain pipe, bottom still intercommunication has one-way feed liquor pipe in the pump cistern, just pump cistern still sealed sliding connection has the piston, install pushing mechanism who promotes its reciprocating motion on the piston.
Preferably, slewing mechanism is including rotating the first gear of connection top in retrieving the box, the centrifuge bowl external fixation is equipped with the ring gear, just ring gear and first gear engagement, retrieve box upper end fixedly connected with driving motor, just driving motor's output shaft and first gear fixed connection.
Preferably, actuating mechanism includes drive shaft, second gear and rack, drive shaft fixed connection is at the lower extreme of circular filter plate, the second gear rotates and sets up in the interior bottom of pump liquid groove, just drive shaft lower extreme fixed connection is in second gear upper end, just the rack and with the meshing of second gear.
Preferably, pushing mechanism includes closing plate, bent axle, wherein the closing plate is sealed to run through the outlet duct, the through-hole has been seted up to the upper end of closing plate, the bent axle rotates to be connected at the bottom in retrieving the box, just bent axle upper end fixed connection is at first gear lower extreme, it is connected with first connecting rod to rotate on the closing plate lateral wall, it is connected with the second connecting rod to rotate on the bent axle lateral wall, just first connecting rod rotates with the second connecting rod to be connected, rack one end and closing plate fixed connection, rack other end fixed connection is on the piston lateral wall.
Preferably, the side wall of the supporting recess is provided with a plurality of discharge grooves, the inner wall of each discharge groove is provided with a feeding port, the inner wall of the centrifugal cylinder is provided with a plurality of discharge ports, and the bottom of each discharge groove is communicated with a discharge pipe.
Preferably, the cleaning tank and the separating tank are both arc-shaped tanks, and the bottom in the cleaning tank is communicated with a waste discharge pipe.
The invention has the following beneficial effects:
1. through setting up parts such as circular filter plate, actuating mechanism, can carry out filterable in-process to the associated gas at circular filter plate, actuating mechanism continuously promotes circular filter plate and rotates, constantly filters back, the one side that contains liquid and impurity with circular filter plate and changes to the washing tank in and wash, also constantly changes the one side after wasing to the separating tank in to carry out the separation and filtration to the associated gas simultaneously, so can enough continuously wash the filter screen, also can keep the long-term clean effect of circular filter plate simultaneously.
2. Through setting up the centrifuge bowl, can carry out centrifugal separation with the associated gas of intake pipe input to go out the great solid of quality and liquid impurity separation, set up parts such as closing plate bent axle simultaneously, can make closing plate intermittent type nature plug up the outlet duct, can make the associated gas dwell a period in the centrifuge bowl, make this device centrifugal separation more thorough.
3. Through setting up parts such as piston, one-way feed liquor pipe and one-way drain pipe, sustainable extraction cleaning solution washs circular filter plate, compares in the mode that utilizes the rotor plate to strike off, can not make circular filter plate adhere to liquid and impurity again.
Drawings
Fig. 1 is a schematic structural diagram of an offshore production platform associated gas recovery device provided by the invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;
fig. 4 is an enlarged schematic view of the structure at C in fig. 1.
In the figure: 1 recovery box body, 2 air inlet pipes, 3 centrifugal cylinders, 4 supporting concave seats, 5 air outlet pipes, 6 driving motors, 7 first gears, 8 crankshafts, 9 sealing plates, 10 through holes, 11 gear rings, 12 discharge ports, 13 discharge grooves, 14 material inlet ports, 15 discharge pipes, 16 racks, 17 second gears, 18 pistons, 19 pump liquid grooves, 20 one-way liquid inlet pipes, 21 one-way liquid outlet pipes, 22 cleaning grooves, 23 separation grooves, 24 connecting grooves, 25 circular filter plates, 26 driving shafts, 27 air exhaust pipes, 28 first connecting rods, 29 grooves, 30 rotating rods, 31 air guide pipes, 32 waste discharge pipes and 33 second connecting rods.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, an offshore oil production platform associated gas recovery unit, including retrieving box 1, the top rotates in retrieving box 1 and is connected with intake pipe 2, fixedly connected with supports concave seat 4 on retrieving box 1 inner wall, it is connected with centrifuge bowl 3 to rotate on supporting concave seat 4, and intake pipe 2 rotates with centrifuge bowl 3 and is connected and communicate, a plurality of blow-off grooves 13 have been seted up to the lateral wall that supports concave seat 4, and seted up pan feeding mouth 14 on the blow-off groove 13 inner wall, a plurality of discharge gates 12 have been seted up on centrifuge bowl 3 inner wall, the bottom intercommunication has bin outlet 15 in blow-off groove 13.
The lower end of the centrifugal cylinder 3 is rotatably connected with an air outlet pipe 5, the air outlet pipe 5 is communicated with the centrifugal cylinder 3, a rotating mechanism for rotating the centrifugal cylinder 3 is installed in the recovery box body 1, the recovery box body 1 is provided with a cleaning groove 22 and a separating groove 23, the cleaning groove 22 and the separating groove 23 are both arc-shaped grooves (refer to fig. 3), and the bottom in the cleaning groove 22 is communicated with a waste discharge pipe 32
The cleaning tank 22 is communicated with the separation tank 23 through a connecting groove 24, a circular filter plate 25 is connected in the connecting groove 24 in a sealing and rotating mode, the circular filter plate 25 is driven to rotate through a driving mechanism, the separation tank 23 is communicated with the interior of the recovery tank body 1 through an air duct 31, an air suction pipe 27 is communicated with the top of the separation tank 23, a pump liquid tank 19 is formed in the inner wall of the recovery tank body 1, the pump liquid tank 19 is communicated with the cleaning tank 22 and is provided with a one-way liquid outlet pipe 21, the bottom of the pump liquid tank 19 is further communicated with a one-way liquid inlet pipe 20, the pump liquid tank 19 is further connected with a piston 18 in a sealing and sliding mode, and a pushing mechanism for pushing the piston 18 to move back and forth is installed on the piston 18. Specifically, the one-way valves corresponding to the flow directions are installed in the one-way liquid inlet pipe 20 and the one-way liquid outlet pipe 21, so that the one-way liquid inlet and outlet effects can be realized, when the piston 18 moves to the right, cleaning liquid (such as clear water) can be pumped into the pump liquid tank 19 through the one-way liquid inlet pipe 20, when the piston 18 moves to the left, the cleaning liquid pumped into the pump liquid tank 19 can be sprayed out along the one-way liquid outlet pipe 21, as shown in fig. 1, the liquid outlet end of the one-way liquid outlet pipe 21 is obliquely arranged upwards and is just opposite to the lower end face of the circular filter plate 25, so that the cleaning of the circular filter plate 25 can be completed.
The rotating mechanism comprises a first gear 7 which is rotatably connected to the top in the recovery box body 1, a gear ring 11 is fixedly arranged outside the centrifugal cylinder 3, the gear ring 11 is meshed with the first gear 7, a driving motor 6 is fixedly connected to the upper end of the recovery box body 1, and an output shaft of the driving motor 6 is fixedly connected with the first gear 7. The driving mechanism comprises a driving shaft 26, a second gear 17 and a rack 16, wherein the driving shaft 26 is fixedly connected to the lower end of the circular filter plate 25, the second gear 17 is rotatably arranged at the bottom in the liquid pumping groove 19, the lower end of the driving shaft 26 is fixedly connected to the upper end of the second gear 17, and the rack 16 is meshed with the second gear 17.
The pushing mechanism comprises a sealing plate 9 and a crankshaft 8, wherein the sealing plate 9 penetrates through the air outlet pipe 5 in a sealing mode, a through hole 10 is formed in the upper end of the sealing plate 9, and when the sealing plate 9 moves left and right, the sealing part and the through hole 10 continuously penetrate through the air outlet pipe 5, so that the intermittent on-off effect of the air outlet pipe 5 is achieved.
Bent axle 8 rotates to be connected at the bottom in retrieving box 1, and 8 upper ends fixed connection of bent axle 7 lower extremes at first gear, rotates on the closing plate 9 lateral wall and is connected with first connecting rod 28, rotates on the 8 lateral walls of bent axle and is connected with second connecting rod 33, and first connecting rod 28 rotates with second connecting rod 33 and is connected, rack 16 one end and closing plate 9 fixed connection, rack 16 other end fixed connection is on the piston 18 lateral wall. Specifically, as shown in fig. 4, grooves 29 are formed in opposite sides of the sealing plate 9 and the crankshaft 8, rotating rods 30 are arranged in the two grooves 29, the left rotating rod 30 penetrates through the first connecting rod 28 and is rotatably connected with the first connecting rod, and the right rotating rod 30 penetrates through the second connecting rod 33 and is rotatably connected with the second connecting rod.
The sealing plate 9 is pushed by the first and second connecting rods 28 and 33 to horizontally reciprocate as the crankshaft 8 continues to rotate (the crankshaft 8, the first and second connecting rods 28 and 33 constitute a crank-link-like mechanism, so that the rotation of the crankshaft 8 is converted into a linear reciprocating motion). Eventually, the piston 18 can be pushed to reciprocate left and right.
In the invention, air extraction equipment (such as an air extractor) and the like are connected with the air extraction pipe 27, the air inlet pipe 2 is connected with the associated gas, after the air extraction equipment is started, the associated gas can be continuously pumped into the centrifugal cylinder 3 from the air inlet pipe 2, then is discharged through the centrifugal cylinder 3 and the air outlet pipe 5, enters the separation tank 23 from the air guide pipe 31, and then flows into the air extraction pipe 27.
In the process, the driving motor 6 is started, and the first gear 7 can be driven to rotate, so that the gear ring 11 meshed with the first gear 7 rotates, the centrifugal cylinder 3 is driven by the gear ring 11 to rotate continuously, the associated gas entering the centrifugal cylinder 3 rotates along with the gear ring, liquid and solid impurities with high quality in the associated gas are thrown to the outer side under the action of centrifugal force, and are thrown into the discharge chute 13 through the discharge port 12 and the feeding port 14, and finally can be discharged outwards from the discharge pipe 15.
Meanwhile, the first gear 7 drives the crankshaft 8 to rotate continuously, the crankshaft 8 pushes the sealing plate 9 to horizontally reciprocate through the first connecting rod 28 and the second connecting rod 33, when the sealing plate 9 moves leftwards, the through hole 10 of the sealing plate 9 can be partially arranged in the air outlet pipe 5, the associated gas in the centrifugal cylinder 3 can pass through the through hole 10 to be discharged outwards, and when the sealing plate 9 moves rightwards, the air outlet pipe 5 is blocked by the sealing plate 9, so that the associated gas in the centrifugal cylinder 3 cannot be discharged outwards, the associated gas stays in the centrifugal cylinder 3 for a period of time, and the associated gas can be centrifuged for a longer time, so that the liquid and solid impurities in the centrifugal cylinder can be more thoroughly thrown out, and the purity of centrifugal separation of the device is improved.
It can be seen from the above description that the sealing plate 9 will continuously reciprocate horizontally, so as to push the rack 16 on the left side to reciprocate synchronously, and further drive the second gear 17 to rotate back and forth, and the second gear 17 will drive the circular filter plate 25 to rotate back and forth through the driving shaft 26. Therefore, after the passing associated gas is filtered in the separation tank 23 on the right side of the circular filter plate 25, liquid and solid impurities are attached to the lower end surface of the circular filter plate 25, after the circular filter plate 25 rotates, one surface attached with the impurities can rotate into the cleaning tank 22, the rack 16 continuously pushes the piston 18 to reciprocate during reciprocating movement, when the piston 18 moves to the right, cleaning liquid can be pumped into the pump liquid tank 19 through the one-way liquid inlet pipe 20, when the piston 18 moves to the left, the cleaning liquid in the pump liquid tank 19 can be contacted and sprayed to the lower end surface of the circular filter plate 25 through the one-way liquid outlet pipe 21, so that the lower end surface of the circular filter plate 25 in the cleaning tank 22 is cleaned, and the liquid and the solid impurities are removed.
So in the operation of this device, circular filter plate 25 that is in separating tank 23 can be sustainable to filter the associated gas, push circular filter plate 25 and make a round trip to rotate under the drive mechanism effect simultaneously, can be constantly with the dirty one side rotation of circular filter plate 25 to the wash tank 22 in, utilize one-way drain pipe 21 spun cleaning solution to wash, thereby both avoided circular filter plate 25 to adhere to impurity again, also can keep the continuous clean of circular filter plate 25, penetrating state simultaneously, with carrying out lasting high-efficient filtration to the associated gas.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (6)
1. The utility model provides an offshore oil production platform associated gas recovery unit, includes recovery box (1), its characterized in that, the top rotates in recovery box (1) and is connected with intake pipe (2), fixedly connected with supports recess (4) on recovery box (1) inner wall, it is connected with centrifuge bowl (3) to rotate on supporting recess (4), just intake pipe (2) rotate with centrifuge bowl (3) and be connected and communicate, centrifuge bowl (3) lower extreme rotates and is connected with outlet duct (5), just outlet duct (5) communicate with each other with centrifuge bowl (3), install in recovery box (1) and make centrifuge bowl (3) pivoted slewing mechanism, set up washing tank (22) and separating tank (23) of recovery box (1), just washing tank (22) communicate with each other through spread groove (24) with each other, the sealed rotation is connected with circular filter plate (25) in spread groove (24), circular filter plate (25) drive its rotation through actuating mechanism, separating tank (23) have seted up one-way air duct (31) and recovery box (1) inside intercommunication, separating tank (23) inner wall intercommunication has circular suction tube (19), on recovery tank (19) inner wall (19) and recovery tank (19), the bottom in the pump liquid tank (19) is also communicated with a one-way liquid inlet pipe (20), the pump liquid tank (19) is also connected with a piston (18) in a sealing and sliding manner, and a pushing mechanism for pushing the piston (18) to move back and forth is installed on the piston.
2. The associated gas recovery device of the offshore oil production platform according to claim 1, wherein the rotating mechanism comprises a first gear (7) rotatably connected to the inner top of the recovery tank body (1), the centrifugal cylinder (3) is externally and fixedly provided with a gear ring (11), the gear ring (11) is meshed with the first gear (7), the upper end of the recovery tank body (1) is fixedly connected with a driving motor (6), and the output shaft of the driving motor (6) is fixedly connected with the first gear (7).
3. The offshore production platform associated gas recovery device according to claim 2, wherein the driving mechanism comprises a driving shaft (26), a second gear (17) and a rack (16), the driving shaft (26) is fixedly connected to the lower end of the circular filter plate (25), the second gear (17) is rotatably arranged at the bottom in the pump liquid tank (19), the lower end of the driving shaft (26) is fixedly connected to the upper end of the second gear (17), and the rack (16) is meshed with the second gear (17).
4. The associated gas recovery device of the offshore oil production platform according to claim 3, wherein the pushing mechanism comprises a sealing plate (9) and a crankshaft (8), wherein the sealing plate (9) penetrates through the gas outlet pipe (5) in a sealing manner, a through hole (10) is formed in the upper end of the sealing plate (9), the crankshaft (8) is rotatably connected to the inner bottom of the recovery box body (1), the upper end of the crankshaft (8) is fixedly connected to the lower end of a first gear (7), a first connecting rod (28) is rotatably connected to the side wall of the sealing plate (9), a second connecting rod (33) is rotatably connected to the side wall of the crankshaft (8), the first connecting rod (28) is rotatably connected to the second connecting rod (33), one end of the rack (16) is fixedly connected to the sealing plate (9), and the other end of the rack (16) is fixedly connected to the side wall of the piston (18).
5. The associated gas recovery device of the offshore production platform according to claim 1, wherein a plurality of discharge grooves (13) are formed in the side wall of the supporting recess (4), a material inlet (14) is formed in the inner wall of each discharge groove (13), a plurality of material outlets (12) are formed in the inner wall of the centrifugal cylinder (3), and a discharge pipe (15) is communicated with the bottom in each discharge groove (13).
6. The associated gas recovery device of the offshore oil production platform according to claim 1, wherein the cleaning tank (22) and the separation tank (23) are both arc-shaped tanks, and a waste discharge pipe (32) is communicated with the bottom in the cleaning tank (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210976994.5A CN115182714A (en) | 2022-08-15 | 2022-08-15 | Offshore oil production platform associated gas recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210976994.5A CN115182714A (en) | 2022-08-15 | 2022-08-15 | Offshore oil production platform associated gas recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115182714A true CN115182714A (en) | 2022-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210976994.5A Pending CN115182714A (en) | 2022-08-15 | 2022-08-15 | Offshore oil production platform associated gas recovery unit |
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| CN (1) | CN115182714A (en) |
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