CN210814046U

CN210814046U - Coalescence oil-water separator

Info

Publication number: CN210814046U
Application number: CN201921120052.7U
Authority: CN
Inventors: 张雷乐; 田军委; 乔路; 李刚; 卢俊林; 邓岩
Original assignee: Xian Technological University
Current assignee: Xian Technological University
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-06-23
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a coalescence oil-water separator, including separation barrel, elevating system and coalescence mechanism, elevating system sets up at the top of separation barrel, just elevating system's bottom is provided with coalescence mechanism, coalescence mechanism is all through the reciprocating displacement from top to bottom of elevating system, coalescence mechanism coalescence oil matter layer through the elevating movement with coalescence mechanism position about going on in liquid solution, can be on the basis of gravity separation, through the coalescence effect of coalescence mechanism, coalesce the oil reservoir in the liquid to when coalescence mechanism rises to the liquid level more than, form the air supporting under the effect through the aqueous vapor three-phase, the oil reservoir is separated to the upper strata, and the aqueous solution sinks to the lower floor, the effectual separation efficiency that has promoted.

Description

Coalescence oil-water separator

Technical Field

The utility model belongs to the oil-water separation field, in particular to coalescence oil-water separator.

Background

As most of oil fields in China enter the middle and later period exploitation stage in succession, the produced liquid has high water content and serious emulsification, so that the effective realization of the rapid oil-water separation of the produced liquid of the oil fields is an important means for improving the oil recovery ratio. Most of the existing oil-water separators adopt a horizontal or vertical structure, and the main methods for oil-water separation comprise a gravity separation method, a centrifugal separation method, an electric desorption separation method, a coalescence separation method, a chemical treatment method and the like. The gravity separation method has low cost, but the separation speed is slow; the centrifugal separation method and the electric dehydration separation method have high separation speed, but both require additional power equipment, and have large energy consumption and high cost; the chemical treatment method is easy to cause secondary pollution to the environment and is limited in application. At present, the oil field is widely applied by a gravity separation method and a coalescence separation method, but the separation speed is slow, so the improvement and the optimization are continued.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model provides a coalescence oil-water separator, effectual combination gravity separation method and coalescence separation method promote separation efficiency.

The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a coalescence oil water separator, includes separation barrel, elevating system and coalescence mechanism, elevating system sets up the top at the separation barrel, just elevating system's bottom is provided with the coalescence mechanism, the coalescence mechanism passes through elevating system displacement of reciprocating from top to bottom, coalescence mechanism coalescence oil matter layer.

Further, elevating system includes actuating mechanism, lead screw, fixed sleeve, activity lifting sleeve and nut, actuating mechanism sets up the top at the separation barrel, the one end of lead screw is connected in actuating mechanism's passive end, and in the other end was the free end and stretched into the separation barrel downwards, the nut spiral shell is established on the lead screw, just activity lifting sleeve interval cover is established in the outside of lead screw, just activity lifting sleeve's top is connected on the nut, fixed sleeve clearance cover is established in the outside of activity lifting sleeve, just fixed sleeve's top is fixed to be set up, and the other end is the free end, activity lifting sleeve slides the setting relatively for fixed sleeve circumference is spacing and axial.

Furthermore, a guide sliding seat is arranged at the bottom of the fixed sleeve and comprises a sliding ring and guide blocks, the sliding ring is coaxially and fixedly arranged on an inner ring of the fixed sleeve, the sliding ring and the movable lifting sleeve are arranged in a sliding mode, at least one guide block is arranged on the inner ring of the sliding ring in a protruding mode, a guide sliding groove is formed in the outer ring wall of the movable lifting sleeve in a concave mode along the axial direction, and the guide blocks are arranged in the guide sliding groove in a sliding mode.

Further, the coalescence mechanism includes the support and sets up coalescence board on the support, the coalescence board is corrugated plate structure, just the cross-section in the displacement direction of coalescence board is the ripple profile.

Further, the coalescence plate is an annular thin plate-like structure and includes at least one coalescence plate in a radial direction.

Furthermore, the coalescence plate is made of an oleophilic and hydrophobic material.

Has the advantages that: the utility model discloses a carry out the elevating movement of position from top to bottom with coalescence mechanism in liquid solution, can be on gravity separation's basis, through the coalescence effect of coalescence mechanism, carry out the coalescence to the oil reservoir in the liquid to when coalescence mechanism rises to more than the liquid level, form the air supporting under the effect through water oil gas three-phase, the oil reservoir is separated to the upper strata, and the aqueous solution sinks to the lower floor, the effectual separation efficiency that has promoted.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a schematic view of the whole structure of the present invention in a semi-sectional view from A-A;

fig. 3 is a schematic perspective view of the internal structure of the lifting mechanism of the present invention;

FIG. 4 is an enlarged view of the structure of part B of the present invention;

fig. 5 is a top view of the coalescing mechanism of the present invention;

fig. 6 is a schematic perspective view of the coalescing mechanism of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in attached figures 1 to 3, the coalescent oil-water separation device comprises a separation cylinder body 1, a lifting mechanism and a coalescing mechanism 6, wherein the separation cylinder body 1 is of a cylinder structure, an air outlet 10 is formed in the top wall of the separation cylinder body 1, a slag discharge port 7 is formed in the bottom wall of the separation cylinder body 1, a liquid inlet 11 is formed in the position close to the upper side of the side wall, an oil outlet 9 is formed in the middle section of the side wall, a water outlet 8 is formed in the bottom end of the side wall, an oil layer subjected to oil-water separation flows out of the oil outlet 9, an aqueous solution flows out of the water outlet 8, the oil layer subjected to oil-water separation flows out of the oil outlet 9, and the aqueous solution flows out of the water outlet 8, the lifting mechanism is arranged at the top of the separation cylinder body 1, the coalescing mechanism 6 is arranged at, through carrying out the elevating movement of upper and lower position with coalescence mechanism 6 in liquid solution, can be on gravity separation's basis, through the coalescence effect of coalescence mechanism, coalesce the oil reservoir in the liquid to when coalescence mechanism rises to more than the liquid level, form the air supporting under the effect through water oil gas three-phase, the oil reservoir is separated to the upper strata, and aqueous solution sinks to the lower floor, the effectual separation efficiency that has promoted.

The coalescence mechanism 6 comprises a support 20 and a coalescence plate 21 arranged on the support 20, the support 20 is arranged at the bottom end of the lifting mechanism, and a liquid rotating driving mechanism 2 is further arranged on the support to drive the aqueous solution to rotate, so that the oil gathering effect of the coalescence plate 21 is further improved. The coalescence plate 21 has a corrugated plate structure, and a cross section of the coalescence plate 21 in a displacement direction has a corrugated profile, the contact area between the coalescence plate 21 and the oil layer in the liquid is increased through the corrugated plate structure, the coalescence efficiency is improved, and the sufficient structure of the coalescence plate 21 and the liquid can be ensured through the grooves with the same lifting direction and the wave crest direction of the corrugated plate, and reduce the fluctuation of the liquid when the coalescence plate 21 is lifted, the coalescence plate is made of oleophylic and hydrophobic materials, the coalescent oil layer is used for separating the water layer, the coalescent plate 21 uses polypropylene as the material of the corrugated plate, and can also be metal and non-metal materials such as polypropylene, polyvinyl chloride, stainless steel, carbon steel and the like, and appropriate surface process treatment is carried out, for example, a layer of surface with lipophilicity is formed by plating a nano film, so that the surface has both lipophilicity and hydrophobicity, and the separation efficiency is greatly improved.

Coalescence board 21 is cyclic annular thin plate-shaped structure, and contains one at least in radial direction coalescence board 21, coalescence area can be increased through the coalescence board 21 of one deck or multilayer interval setting, promotes coalescence efficiency, as shown in figure 5 and figure 6, contains the coalescence board of two cyclic annular and interval settings, can provide great space for the oil droplet coalescence, and the peak valley is crisscross on the buckled plate, is favorable to fluid coalescence separation. The coalescence plate 21 may also be in the form of a cone, a concentric circle, an involute, or the like.

As shown in fig. 2 to fig. 4, the lifting mechanism includes a driving mechanism 5, a screw rod 12, a fixed sleeve 4, a movable lifting sleeve 3 and a nut 13, the driving mechanism is a driving motor, the driving mechanism 5 is disposed on the top end of the separation cylinder 1, one end of the screw rod 12 is connected to the driven end of the driving mechanism 5, the other end is a free end and extends downwards into the separation cylinder 1, a sealing piston 18 is disposed at the bottom end of the screw rod, the sealing piston 18 is slidably disposed in the movable lifting sleeve to prevent the water solution from entering the screw rod, the nut 13 is spirally disposed on the screw rod 12, the movable lifting sleeve 3 is disposed at the outer side of the screw rod 12 at an interval, the top end of the movable lifting sleeve 3 is connected to the nut 13, the fixed sleeve 4 is disposed at the outer side of the movable lifting sleeve 3 at a gap, and the top end of the fixed sleeve 4 is fixedly disposed on the top, and the other end is a free end and extends downwards, the movable lifting sleeve 3 is circumferentially limited relative to the fixed sleeve 4 and axially and relatively glidingly arranged, and the movable lifting sleeve 3 rotates through the screw rod 12 to enable the nut to linearly displace upwards or downwards, so that the coalescing mechanism 6 is lifted.

The bottom of the fixed sleeve 4 is provided with a guide sliding seat 14, the guide sliding seat 14 comprises a sliding ring 15 and a guide block 16, the sliding ring 15 is coaxially and fixedly arranged on the inner ring of the fixed sleeve 4, the sliding ring 15 and the movable lifting sleeve 3 are arranged in a sliding manner, at least one guide block 16 is convexly arranged on the inner ring of the sliding ring 15, the outer ring wall of the movable lifting sleeve 3 is axially and concavely provided with a guide sliding groove 17, the guide block 16 is arranged in the guide sliding groove 17 in a sliding manner, and the movable lifting sleeve is guided in a lifting manner through the guide sliding seat 14, so that only axial displacement is realized, and circumferential displacement of the movable lifting sleeve is limited. Compare the elevating system of the simplicity in current mechanism, through with screw rod mechanism miniaturization, sealed, can guarantee the smooth and easy operation of lead screw, prevent its corrosion, and still have the transmission efficiency height, move steady advantage to make the part figure of processing design low, the noise reduction, the driving chain is short, and the error ratio is less.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A coalescence oil water separator which characterized in that: including separation barrel (1), elevating system and coalescence mechanism (6), elevating system sets up the top at separation barrel (1), just elevating system's bottom is provided with coalescence mechanism (6), coalescence mechanism (6) are through elevating system displacement of reciprocating from top to bottom, coalescence mechanism (6) coalescence oil matter layer.

2. The coalescing oil-water separation device according to claim 1, wherein: the lifting mechanism comprises a driving mechanism (5), a screw rod (12), a fixed sleeve (4), a movable lifting sleeve (3) and a nut (13), the driving mechanism (5) is arranged at the top end of the separation cylinder body (1), one end of the screw rod (12) is connected with the driven end of the driving mechanism (5), the other end is a free end and extends downwards into the separation cylinder body (1), the nut (13) is spirally sleeved on the screw rod (12), and the movable lifting sleeve (3) is sleeved outside the screw rod (12) at intervals, and the top end of the movable lifting sleeve (3) is connected on the nut (13), the fixed sleeve (4) is sleeved outside the movable lifting sleeve (3) in a clearance way, and the top end of the fixed sleeve (4) is fixedly arranged, the other end of the fixed sleeve is a free end, and the movable lifting sleeve (3) is circumferentially limited and axially and relatively slides relative to the fixed sleeve (4).

3. The coalescing oil-water separation device according to claim 2, wherein: the guide sleeve is characterized in that a guide sliding seat (14) is arranged at the bottom of the fixed sleeve (4), the guide sliding seat (14) comprises a sliding ring (15) and guide blocks (16), the sliding ring (15) is coaxially and fixedly arranged on the inner ring of the fixed sleeve (4), the sliding ring (15) and the movable lifting sleeve (3) are arranged in a sliding mode, at least one guide block (16) is arranged on the inner ring of the sliding ring (15) in a protruding mode, a guide sliding groove (17) is arranged on the outer ring wall of the movable lifting sleeve (3) in a concave mode along the axial direction, and the guide blocks (16) are arranged in the guide sliding groove (17) in a sliding mode.

4. The coalescing oil-water separation device according to claim 1, wherein: the coalescing mechanism (6) comprises a support (20) and a coalescing plate (21) arranged on the support (20), the coalescing plate (21) is of a corrugated plate structure, and the section of the coalescing plate (21) in the displacement direction is of a corrugated profile.

5. The coalescing oil-water separation device according to claim 4, wherein: the coalescence plate (21) is of an annular thin plate-like structure and comprises at least one coalescence plate (21) in the radial direction.

6. The coalescing oil-water separation device according to claim 4, wherein: the coalescence plate (21) is made of oleophylic and hydrophobic materials.