CN220478198U - Oil-water separation lifting device - Google Patents

Abstract

The utility model provides an oil-water separation lifting device, which relates to the field of oil-water separation lifting devices, and comprises a supporting pipe, wherein a power device for lifting a lower lifting pipe is arranged at the top of the supporting pipe; the outer circumferential surface of the lifting pipe is sleeved with a flange I for fixing the storage tank, the lifting pipe can move up and down in the flange I, a pressure-bearing unit is arranged between the lifting pipe and the flange I, and the bottom of the lifting pipe is provided with a connecting section; the center of the hanging plate is provided with a large hole, the diameter of the large hole is larger than the outer diameter of the lifting pipe, the outer diameters of the circular plate I and the circular plate II are larger than the outer diameter of the lifting pipe and are larger than Kong Waijing, the centers of the circular plate I and the circular plate II are provided with small holes, the circular plate I, the hanging plate and the circular plate II are sequentially sleeved on the connecting section, the circular plate I, the hanging plate and the circular plate II are fixed on the lifting pipe through nuts, and at the moment, the circular plate I and the circular plate II limit the hanging plate to move up and down but the hanging plate can move left and right because the diameter of the large hole is larger than the outer diameter of the connecting section; the beneficial effects are that: the device has good sealing effect and can adjust the lifting height of the oil-water interface.

Description

Oil-water separation lifting device

Technical Field

The utility model belongs to the field of oil-water treatment, and particularly relates to an oil-water separation lifting device.

Background

The liquid obtained from petroleum exploitation contains oil, water and gas, the oil needs to be subjected to simple oil-water separation before being stored in a metering room, and then the oil is stored and the water is refilled into the stratum. Under normal conditions, the extracted liquid is filtered by solid impurities such as sand and stone, and then is collided with each other by a corrugated plate or other devices, and oil and water are separated by floating oil under the action of gravity after oil droplets are gathered into large oil droplets. The treated liquid is discharged into a storage tank, oil floats on the water surface, the upper floating oil is pumped to the storage space on the other surface through a lifting device, and the water on the lower layer is reinjected into the stratum to complete simple oil-water separation.

The existing disadvantages are:

(1) Sometimes, the joint between the lifting device and the top surface of the storage tank has air leakage, and as the liquid just mined contains toxic gas, the surrounding environment and the physical health of staff are seriously affected once volatilized.

(2) The oil pumping height of the lower part cannot be adjusted in the use of the current lifting device, so that an oil-water interface cannot be well divided, the oil-water ratio of each well and even a single well produced in different time periods is inconsistent, the same interface is adopted for pumping oil, and when more water and less oil exist, the oil-water separation effect is poor.

Therefore, a novel oil-water separation lifting device is developed.

Disclosure of Invention

In order to solve the problems, the utility model provides the oil-water separation lifting device which has good sealing effect and can adjust the oil-water interface.

The technical scheme of the utility model is as follows:

the oil-water separation lifting device comprises a supporting pipe, wherein a power device for lifting a lower lifting pipe is arranged at the top of the supporting pipe; the lifting pipe is enabled to adjust the height of the lower structural unit through the power device, and the height of the oil-water interface is further adjusted.

The structural unit is as follows: the bottom of the lifting pipe is provided with a connecting section with the diameter smaller than that of the lifting pipe, and threads are arranged at the front end of the connecting section; the center of the hanging plate is provided with a large hole penetrating through the hanging plate, the diameter of the large hole is larger than the outer diameter of the lifting pipe, the outer diameters of the circular plate I and the circular plate II are both larger than the outer diameters of the lifting pipe and the large hole, the centers of the circular plate I and the circular plate II are respectively provided with a small hole matched with the outer diameter of the connecting section, the circular plate I, the hanging plate and the circular plate II are sequentially sleeved on the connecting section, the circular plate I, the hanging plate and the circular plate II are fixed on the lifting pipe through screwing a nut I, and at the moment, the circular plate I and the circular plate II limit the hanging plate to move up and down but the hanging plate can move left and right because the diameter of the large hole is larger than the outer diameter of the connecting section;

further, a plurality of round steels are fixedly connected to the bottom surface of the hanging plate, a protection pipe II is sleeved on the outer peripheral surface formed by the plurality of round steels, and the bottoms of the protection pipe II and the round steels are fixedly connected with the flange component; the lower lifting pipe moves up and down in the inner peripheral surface surrounded by a plurality of round steels; further, the fixed connection mode comprises welding;

further, polishing the outer surface of the lifting pipe and the round steel;

preferably, the number of the round steels is 4;

further, the plug of the lifting pipe comprises the connecting section, and the other end of the plug is fixedly connected with the lifting pipe after being inserted into the lifting pipe;

further, the power device adjusts the height of the lifting pipe in the following manner:

the power device is a lifting motor, the lifting motor is fixed on the top surface of the supporting tube, and threads are arranged on the long shaft of the lifting motor; the flange II penetrates through the long shaft, the inside of the copper nut in the shape of a Chinese character 'tu' is connected with the long shaft through threads, one end of the outer part of the copper nut is fixedly connected with the flange II, the flange II penetrates through the lifting pipe and is fixedly connected with the top surface of the lifting pipe, the other end of the outer part of the copper nut is clamped on the flange II and the lifting pipe, and the flange II is fixedly connected with the flange II through bolts and nuts;

the peripheral surface of the supporting tube is provided with a limiting hole which is in a strip shape in the vertical direction, one side of the flange plate II is fixedly connected with a limiting rod, and the limiting rod penetrates out of the limiting hole;

after the lifting motor is opened, the long shaft rotates, and the flange plate II and the copper nut can not rotate due to the limiting effect of the limiting rod and can only drive the flange plate II to move on the long shaft, the lifting motor is controlled to further ascend or descend by controlling the rotating direction of the lifting motor, and the lifting motor drives the lifting pipe and the protecting pipe II to move up and down to further adjust the oil pumping height;

further, the long shaft of the lifting motor is connected with the input shaft of the speed reducer through the enclasping device, and the speed reducer enables the long shaft to run at a constant speed;

the outer circumferential surface of the lifting pipe is sleeved with a flange I used for being fixed with a storage tank, the lifting pipe can move up and down in the flange I, a pressure-bearing unit is arranged between the lifting pipe and the flange I, and the pressure-bearing unit is as follows: the lifting pipe comprises a lifting pipe body, and is characterized in that a cover plate and a protective pipe I are sequentially sleeved at one end of the lifting pipe from top to bottom, a straight-edge copper sleeve and a flanging copper sleeve, wherein the inner diameter of the straight-edge copper sleeve is matched with the outer diameter of the lifting pipe, the straight-edge copper sleeve is sleeved between the lifting pipe body and the protective pipe I, a sealing ring is arranged between the straight-edge copper sleeve and the straight-edge copper sleeve, the bottom of the straight-edge copper sleeve is propped in the protective pipe I, the top surface of the protective pipe I is propped against the flanging bottom surface of the flanging copper sleeve, the top surface of the flanging is propped against the bottom surface of the cover plate, the flange I is sleeved on the outer circumferential surface of the protective pipe I and is fixedly connected with the outer circumferential surface of the protective pipe I, and the flange I and the cover plate are fixedly connected through bolts and nuts;

further, a groove is formed in the protective tube I at the bottom of the straight-edge copper sleeve, a sealing ring is arranged in the groove, the sealing ring between the flanging copper sleeve and the straight-edge copper sleeve is preferably an O-shaped sealing ring, and the sealing ring in the groove is a Y-shaped sealing ring;

further, the oil pumping pipe for conveying oil is further arranged, one end of the oil pumping pipe is arranged on the oil-water separation lifting device and used for pumping oil or pumping water, an oil pumping port of the oil pumping pipe is lifted through lifting of the power device, and the other end of the oil pumping pipe is communicated with an oil storage area;

preferably, one end of the oil pumping pipe is inserted and fixed from the peripheral surface of the protection pipe II, the other end of the oil pumping pipe is fixedly connected with the flange assembly on the peripheral surface of the protection pipe II, the oil pumping pipe is fixedly connected with another pipeline through the flange assembly, and the other end of the pipeline is inserted into an oil storage area.

The beneficial effects of the utility model are as follows:

the power device in the oil-water separation lifting device is used for lifting the lower lifting pipe and the structural unit to further adjust the height of oil or water, so that when the height of an oil-water interface is changed, for example, the height of the structural unit is increased upwards when the oil is more or less than the water is more or less, the device can adapt to the working requirements of different working conditions, and the device is multipurpose.

Because the application place of the device is a pressure container, medium working pressure and working temperature need to be borne, tightness is kept airtight, and a special pressure-bearing unit is formed by the special pressure-bearing unit, namely the protective tube II, the straight-edge copper sleeve, the flanging copper sleeve, the Y-shaped sealing ring, the O-shaped sealing ring, the gland and the flange I; this application has 2 seal structure, and the second is for Y type sealing washer in the pillar II has further ensured the leakproofness, and this kind of seal can rise tightly under the medium pressure, belongs to the self sealss, has thoroughly eliminated the possibility that the medium revealed.

The lifting pipe plug, the circular plate I, the circular plate II, the lifting plate, the lower lifting pipe, the round steel and the flange component form a structural unit together, and the lifting plate is limited on the lifting pipe through the circular plate I and the circular plate II, and the circular plate I, the lifting plate and the circular plate II are fixed on the lifting pipe through the nut I, so that the circular plate I and the circular plate II limit the lifting plate to move up and down, but the lifting plate can move left and right because the diameter of a large hole is larger than the outer diameter of the connecting section; four round steels are combined to play a role of a guide rail, and two structures form a self-centering function of the lifting pipe, so that the self-centering function can be automatically adjusted due to the action of force when the lifting pipe is not concentric, and the clamping condition of the lifting process is effectively avoided.

The outer surfaces of the lifting pipe and the round steel are polished, so that the clamping phenomenon in the lifting process is further avoided and reduced.

Drawings

FIG. 1 is a schematic diagram of an oil-water separation lifting device;

FIG. 2 is a schematic diagram of a pressure containing unit;

FIG. 3 is a schematic view of the direction A-A of FIG. 1;

FIG. 4 is a reference diagram of the use state of the oil-water separation lifting device;

FIG. 5 is a schematic diagram of oil-water interface division;

in the figure:

1. flange assembly 3, lower riser 4, copper nut

5. Flange II 6, protective tube II 7 and round steel

8. Nut I9, hanger plate 10, circular plate I

11. Circular plate II 12, plug 13 and lifting pipe

14. Flange I15, lifting motor 16 and speed reducer

22. Support tube 23, copper nut 24 and limiting rod

25. Flange II 26, limiting hole 29 and cover plate

31. Flanging copper sleeve 32, O-shaped sealing ring 33 and protective tube I

34. Straight-edge copper sleeve 35, Y-shaped sealing ring 9-1 and large hole

10-1, small hole 12-1, connecting section 31-1, flanging

36. Oil suction pipe 37, storage area 15-1, long axis

Detailed Description

In this embodiment, as shown in fig. 1, an oil-water separation lifting device includes a support tube 22, where a power device for lifting a lower lifting tube 3 is arranged on the top of the support tube 22; the outer circumferential surface of the lifting pipe 13 is sleeved with a flange I14 for fixing the storage tank, the lifting pipe 13 can move up and down in the flange I14, a pressure-bearing unit is arranged between the lifting pipe and the flange I, and the lifting pipe 13 is enabled to adjust the height of a lower structural unit of the lifting pipe through the power device so as to further adjust the height of an oil-water interface.

When the device is used, the pressure-bearing unit is assembled firstly, and the structural unit is assembled after the pressure-bearing unit is assembled, and the device is specific in that:

1. the pressure-bearing unit as shown in fig. 2 is as follows: the lifting pipe comprises a lifting pipe body and is characterized in that a cover plate 29 and a protective pipe I33 are sequentially sleeved at one end of the lifting pipe 13 from top to bottom, a straight-edge copper sleeve 34 and a flanging copper sleeve 31, wherein the inner diameter of the straight-edge copper sleeve is matched with the outer diameter of the lifting pipe 13, the straight-edge copper sleeve 31 is pressed on the upper part of the straight-edge copper sleeve 34, a sealing ring is arranged between the straight-edge copper sleeve and the straight-edge copper sleeve, the bottom of the straight-edge copper sleeve 34 is propped in the protective pipe I33, the top surface of the protective pipe I33 is propped against the bottom surface of a flanging 31-1 of the flanging copper sleeve 31, the top surface of the flanging 31-1 is propped against the bottom surface of the cover plate 29, a flange I14 is sleeved on the outer circumferential surface of the protective pipe I33 and is fixedly connected with the flange I14 through a bolt and a nut;

further, a groove is formed in the protective tube i 33 at the bottom of the straight-edge copper sleeve 34, a sealing ring is arranged in the groove, the sealing ring between the flange copper sleeve 31 and the straight-edge copper sleeve 34 is preferably an O-shaped sealing ring 32, and the sealing ring in the groove is a Y-shaped sealing ring 35;

the pressure-bearing unit is assembled as follows: cover plate 29, turn-ups copper sheathing 31, O type sealing washer 32, straight flange copper sheathing 34 are overlapped on riser 13 in proper order, then overlap pillar I33 and install Y type sealing washer 35, then will flange I14 cover is established at pillar I33 outer periphery, penetrates the bolt this moment flange I14 with cover plate 29 back bolt is screwed up and is accomplished above-mentioned equipment.

2. The structural units shown in fig. 1 are: the bottom of the lifting pipe 13 is provided with a connecting section 12-1 with the diameter smaller than that of the lifting pipe 13, and threads are arranged at the front end of the connecting section 12-1; the center of the hanging plate 9 is provided with a large hole 9-1 penetrating through the hanging plate 9, the diameter of the large hole 9-1 is larger than the outer diameter of the lifting pipe 13, the outer diameters of the circular plate I10 and the circular plate II 11 are both larger than the outer diameters of the lifting pipe 13 and the large hole 9-1, and the centers of the circular plate I10 and the circular plate II 11 are respectively provided with a small hole 10-1 matched with the outer diameter of the connecting section 12-1.

Further, a plurality of round steels 7 are welded on the bottom surface of the hanging plate 9, a protection pipe II 6 is sleeved on the peripheral surface surrounded by the round steels 7, and the bottoms of the protection pipe II 6 and the round steels 7 are welded with the flange assembly 1; the lower lifting pipe 3 moves up and down in the inner peripheral surface surrounded by a plurality of round steels 7;

further, polishing the outer surfaces of the lifting pipe 13 and the round steel 7;

preferably, the number of the round steels 7 is 4;

further, the plug 12 of the riser 13 comprises the connecting section 12-1, and the other end of the plug 12 is inserted into the riser 13 and then welded with the riser 13;

the assembly process of the structural unit is as follows: the circular plate I10, the hanging plate 9 and the circular plate II 11 are sequentially sleeved on the connecting section 12-1, the circular plate I10, the hanging plate 9 and the circular plate II 11 are fixed on the lifting pipe 13 by screwing the nut I8, and at the moment, the circular plate I10 and the circular plate II 11 limit the hanging plate 9 not to move up and down but the hanging plate 9 can move left and right because the diameter of the large hole 9-1 is larger than the outer diameter of the connecting section 12-1;

3. the working step 2 and the step 3 can be interchanged, and the assembling process of the step 3 is as follows:

the power device is a lifting motor 15, the lifting motor 15 is fixed on the top surface of the supporting tube 22, and a long shaft 15-1 of the lifting motor 15 is provided with threads; the flange II 25 is penetrated on the long shaft 15-1, the inside of a copper nut 234 in a shape of a Chinese character 'yang' is connected with the long shaft 15-1 through threads, one end of the outside of the copper nut 234 is fixedly connected with the flange II 25, the flange II 5 is fixedly connected with the top surface of the lifting pipe 13 after penetrating on the lifting pipe 13, the other end of the outside of the copper nut 234 is clamped on the flange II 5 and the lifting pipe 13, and the flange II 5 is fixedly connected with the flange II 25 through bolts and nuts;

a limiting hole 26 which is vertically long is formed in the peripheral surface of the supporting tube 22, a limiting rod 24 is welded on one side of the flange II 25, and the limiting rod 24 penetrates out of the limiting hole 26;

after the lifting motor 15 is started, the long shaft 15-1 rotates, and the flange II 25 and the copper nut 234 can not rotate due to the limiting effect of the limiting rod 24, but only drive the flange II 25 to move on the long shaft 15-1, the lifting motor 15 further controls the lifting or the descending by controlling the rotation direction of the lifting motor 15, and the lifting motor 15 further drives the lifting pipe 13 and the protective pipe II 6 to move up and down to further adjust the oil extraction height;

further, the long shaft 15-1 of the lifting motor 15 is connected with the input shaft of the speed reducer 16 through a clasping device, and the speed reducer 16 enables the long shaft 15-1 to run at a constant speed;

further, the oil pumping pipe 36 for conveying oil is further arranged, one end of the oil pumping pipe 36 is arranged on the oil-water separation lifting device and is used for pumping oil or pumping water, an oil pumping port of the oil pumping pipe 36 is lifted by lifting of the power device, and the other end of the oil pumping pipe is communicated with the oil storage area 37;

preferably, one end of the oil pumping pipe 36 is inserted and fixed from the peripheral surface of the protection pipe ii 6, the other end is welded to the flange assembly 1 at the peripheral surface of the protection pipe ii 6, and is fixedly connected to another pipe through the flange assembly 1, and the other end of the pipe is inserted into the oil storage area 37.

4. As shown in fig. 4, when the assembled device is lowered into the storage tank from the construction opening at the top of the storage tank, the lower riser tube 3 is inserted into the space surrounded by 4 round steels 7, and the flange i 14 is fixedly connected with the flange at the top of the construction opening through bolts and nuts, so that the lower riser tube 3 and the protection tube ii 6 can be used even though being concentric due to the function of the structural unit.

When the oil-water interface needs to be adjusted, the application further comprises a liquid level sensor, and the method for calculating the oil-water interface is as follows by the method shown in fig. 5:

b×ρ _{water and its preparation method} ＝h×ρ _{Water and its preparation method} ×(H-h)×ρ _{Oil (oil)}

a＝H-b

Wherein ID is the total internal diameter;

h is the total height of the liquid level;

h is the interfacial height of water;

a is the set water height;

ρ _{oil (oil)} Is the density of the oil;

ρ _{water and its preparation method} Is the density of water;

b is the set oil height;

the oil-water interface is controlled by adjusting the value a or the value b.

When the oil-water interface is high, that is, when more water is needed, the original oil pumping height is the oil, and now, the oil pumping hole is needed to be lifted, at this time, the lifting motor 15 drives the long shaft 15-1 to rotate leftwards, the long shaft 15-1 drives the flange plate II 25 and the copper nut 234 to rotate, and further, the copper nut 234 ascends on the long shaft 15-1 due to the rotation action of the limiting rod 24 and the limiting hole 26, so that the copper nut 234 drives the lifting pipe 13 and the structural unit fixed at the lower part of the lifting pipe 13 to move upwards, the oil pumping height of the oil pumping pipe 36 is increased until the oil pumping hole of the oil pumping pipe 36 reaches the position of an oil layer, and the oil is pumped to the storage area 37 through the pump and the oil pumping pipe 36.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in fig. 1, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims (9)

1. An oil-water separation hoisting device, its characterized in that: the device comprises a support tube, wherein a power device for lifting a lower lifting tube is arranged at the top of the support tube; the lifting pipe is enabled to adjust the height of the oil-water interface through the power device, and the height of the lower structural unit is adjusted by the structural unit:

the bottom of the lifting pipe is provided with a connecting section with the diameter smaller than that of the lifting pipe, and threads are arranged at the front end of the connecting section; the center of the hanging plate is provided with a large hole penetrating through the hanging plate, the diameter of the large hole is larger than the outer diameter of the lifting pipe, the outer diameters of the circular plate I and the circular plate II are both larger than the outer diameters of the lifting pipe and the large hole, the centers of the circular plate I and the circular plate II are respectively provided with a small hole matched with the outer diameter of the connecting section, the circular plate I, the hanging plate and the circular plate II are sequentially sleeved on the connecting section, and the circular plate I, the hanging plate and the circular plate II are fixed on the lifting pipe by screwing a nut I;

the round steels are fixedly connected to the bottom surface of the hanging plate, the protection pipe II is sleeved on the peripheral surface surrounded by the round steels, and the protection pipe II and the bottom of the round steels are fixedly connected with the flange component; the lower lifting pipe moves up and down in the inner peripheral surface surrounded by a plurality of round steels.

2. The oil-water separation lifting device according to claim 1, wherein: the outer circumferential surface of the lifting pipe is sleeved with a flange I used for being fixed with a storage tank, the lifting pipe can move up and down in the flange I, a pressure-bearing unit is arranged between the lifting pipe and the flange I, and the pressure-bearing unit is as follows: one end of the lifting pipe is sequentially sleeved with a cover plate and a protecting pipe I from top to bottom, a straight-edge copper sleeve and a flanging copper sleeve with the inner diameter matched with the outer diameter of the lifting pipe are sleeved between the lifting pipe and the protecting pipe I, the flanging copper sleeve is pressed on the upper part of the straight-edge copper sleeve, a sealing ring is arranged between the straight-edge copper sleeve and the flanging copper sleeve, the bottom of straight flange copper sheathing supports in pillar I, pillar I's top surface supports in the turn-ups bottom surface of turn-ups copper sheathing, turn-ups top surface supports in the apron bottom surface, I cover of flange is established at pillar I outer periphery and fixed connection between the two, I and apron pass through bolt and nut fixed connection.

3. An oil-water separation lifting device according to claim 2, characterized in that: a groove is formed in the protective tube I at the bottom of the straight-edge copper sleeve, and a sealing ring is arranged in the groove.

4. An oil-water separation lifting device according to claim 3, characterized in that: the sealing ring between the flanging copper sleeve and the straight-edge copper sleeve is an O-shaped sealing ring, and the sealing ring in the groove is a Y-shaped sealing ring.

5. An oil-water separation lifting device according to any one of claims 1-4, characterized in that: the power device is a lifting motor, the lifting motor is fixed on the top surface of the supporting tube, and threads are arranged on the long shaft of the lifting motor; the flange II penetrates through the long shaft, the inside of the copper nut in the shape of a Chinese character 'tu' is connected with the long shaft through threads, one end of the outer part of the copper nut is fixedly connected with the flange II, the flange II penetrates through the lifting pipe and is fixedly connected with the top surface of the lifting pipe, the other end of the outer part of the copper nut is clamped on the flange II and the lifting pipe, and the flange II is fixedly connected with the flange II through bolts and nuts;

the supporting tube is characterized in that a limiting hole which is in a strip shape in the vertical direction is formed in the peripheral surface of the supporting tube, a limiting rod is fixedly connected to one side of the flange plate II, and the limiting rod penetrates out of the limiting hole.

6. The oil-water separation lifting device according to claim 5, wherein: the long shaft of the lifting motor is connected with the force input shaft of the speed reducer through the enclasping device.

7. The oil-water separation lifting device according to claim 6, wherein: one end of the oil pumping pipe is arranged on the oil-water separation lifting device and is used for pumping oil or pumping water, an oil pumping port of the oil pumping pipe is lifted through lifting of the power device, and the other end of the oil pumping pipe is communicated with an oil storage area.

8. The oil-water separation lifting device according to claim 7, wherein: one end of the oil pumping pipe is inserted and fixed from the peripheral surface of the protection pipe II, the other end of the oil pumping pipe is fixedly connected with the flange assembly on the peripheral surface of the protection pipe II, the oil pumping pipe is fixedly connected with another pipeline through the flange assembly, and the other end of the pipeline is inserted into an oil storage area.

9. The oil-water separation lifting device according to claim 8, wherein: polishing the outer surface of the lifting pipe and the round steel;

the number of the round steels is 4;

the plug of the lifting pipe comprises the connecting section, and the other end of the plug is fixedly connected with the lifting pipe after being inserted into the lifting pipe.