CN212198602U - Oil-water separation device in oilfield produced water treatment - Google Patents
Oil-water separation device in oilfield produced water treatment Download PDFInfo
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- CN212198602U CN212198602U CN202020694217.8U CN202020694217U CN212198602U CN 212198602 U CN212198602 U CN 212198602U CN 202020694217 U CN202020694217 U CN 202020694217U CN 212198602 U CN212198602 U CN 212198602U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 188
- 238000000926 separation method Methods 0.000 title claims abstract description 41
- 238000005192 partition Methods 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 22
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 14
- 239000002893 slag Substances 0.000 claims abstract description 13
- 238000005469 granulation Methods 0.000 claims abstract description 8
- 230000003179 granulation Effects 0.000 claims abstract description 8
- 238000004581 coalescence Methods 0.000 claims description 22
- -1 polypropylene Polymers 0.000 claims description 6
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 5
- 239000003830 anthracite Substances 0.000 claims description 5
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000013049 sediment Substances 0.000 abstract description 10
- 238000007599 discharging Methods 0.000 description 8
- 239000003818 cinder Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
An oil-water separation device in oilfield produced water treatment is characterized in that a water inlet pipe is arranged below one side wall of a box body, a first partition plate and a second partition plate are arranged in the box body to divide an inner cavity of the box body into a coarse granulation area, an oil-water standing area and an oil-water separation area, a gap is reserved between the first partition plate and the top of the box body to form a water flow channel, the second partition plate is hermetically connected with the front side wall, the rear side wall, the top and the bottom of the box body, a first water distribution plate is arranged below the coarse granulation area, a second water distribution plate is arranged above the coarse granulation area, a cavity between the first water distribution plate and the bottom of the box body is communicated with the water inlet pipe, spherical hydrophobic particles are filled in the cavity between the first water distribution plate and the second water distribution plate, a first slag discharge port is arranged at the bottom of the oil-water standing area, a water distribution hole, An oil separation inclined plate and a water outlet pipe are arranged below the side wall, a conical sediment hopper is arranged at the bottom of the side wall, and a second slag discharge port is arranged at the bottom of the sediment hopper.
Description
Technical Field
The utility model belongs to the technical field of water treatment, a concretely designs oil field extraction water treatment facilities.
Background
The exploitation of most oil fields in China enters the middle and later stages, water injection exploitation is already a main exploitation mode, the main water source of water injection at the present stage is oil field produced water, and the oil field produced water is rich in oil and suspended matters and can be reinjected into the stratum after being treated. For the treatment of floating oil and dispersed oil in water extracted from oil fields, the currently common oil-water separation methods include gravity separation such as gravity oil removal tank and pressure oil removal tank; centrifugal separation such as a cyclone; coalescence-separation such as an inclined plate degreaser; air flotation oil removal; chemical separation, such as methods of adding degreaser and coagulant, etc., these single water treatment units are difficult to realize high-efficiency separation of oil and water within a limited time, and especially under the conditions that the load change of sewage to be treated is large, and the oil content in water is unstable, etc., the oil-water separation effect is lower. The treatment of chemical agents can cause secondary pollution to the sewage to be treated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an oil water separator among the oil field extraction water treatment that reasonable in design, simple structure, convenient operation, energy consumption are low, environmental protection, oil separating effect are good is provided.
The technical scheme for solving the technical problems is as follows: a water inlet pipe is arranged below one side wall of the box body, a first clapboard and a second clapboard are arranged in the box body to divide an inner cavity of the box body into a coarse graining area, an oil-water standing area and an oil-water separating area, the first clapboard is hermetically connected with the front side wall, the rear side wall and the bottom of the box body, a gap is left between the first clapboard and the top of the box body to form a water flow channel, the second clapboard is hermetically connected with the front side wall, the rear side wall, the top and the bottom of the box body, a first water distribution plate is hermetically arranged below the coarse graining area, a second water distribution plate is hermetically arranged above the coarse graining area, a cavity between the first water distribution plate and the bottom of the box body is communicated with the water inlet pipe, spherical oleophylic hydrophobic particles are filled in the cavity between the first water distribution plate and the second water distribution plate, the cavity between the second water distribution plate and the top of, the middle part of the second clapboard is provided with a water distribution hole array, the oil-water standing area is communicated with the oil-water separation area through the water distribution hole array on the second clapboard, the middle part in the oil-water separation area is provided with at least 2 wave-shaped coalescence oil removing plates, an oil discharge pipe is arranged above the side wall, an oil separation inclined plate and a water outlet pipe are arranged below the side wall, the bottom of the oil separation area is provided with a conical sediment hopper, and the bottom of the sediment hopper is provided with a second sediment outlet a.
As a preferable technical scheme, the particle size of the oleophylic and hydrophobic particles is 2-5 mm.
As a preferred technical scheme, the oleophylic and hydrophobic particles are quartz sand or anthracite or ceramsite.
As a preferable technical scheme, the arrangement mode of the water distribution hole arrays in the middle of the second partition is longitudinally arranged at equal intervals, the distance between the centers of two adjacent water distribution holes in the upper row from top to bottom is 1.2-2.0 times that of the centers of two adjacent water distribution holes in the lower row, the distance between the centers of two adjacent water distribution holes in the bottom row is 10mm, and the diameter of each water distribution hole is 5-15 mm.
As a preferred technical scheme, the wave crest and the wave trough of the wave-shaped coalescence oil removal plate are horizontal planes, the side surfaces of the wave crest and the wave trough are inclined planes, the inclination angle of each inclined plane is 30-60 degrees, an oil discharge hole c is formed in the horizontal plane of the wave crest, and a slag discharge hole d is formed in the horizontal plane of the wave trough.
As a preferred technical scheme, the oil discharge holes c are arranged in 2 rows in a staggered mode, and the hole diameter is 5-15 mm.
As a preferred technical scheme, the slag discharge holes d are 1 row, and the hole diameter is 10-20 mm.
As a preferred technical scheme, the coalescence deoiling plate is a polypropylene deoiling plate or a polyethylene deoiling plate.
The utility model has the advantages as follows:
the utility model discloses a first baffle and second baffle separate into coarse graining district with the box inner chamber, profit stewing district, the oil-water separation district, the middle part of second baffle is equipped with water distribution hole array, oily water is at first through coarse graining district and oleophylic hydrophobic granule fully contact, get into profit stewing district after the oil droplet particle size in aqueous progressively enlarges, on the second baffle between profit stewing district and the oil-water separation district, the middle part of second baffle is provided with water distribution hole array, the arrangement mode of water distribution hole array is vertical equidistance arrangement, the distance between the adjacent two holes of horizontal top-down last line is 1.2 ~ 2.0 times of the distance between the adjacent two holes of next line, because the density difference of profit, from top to bottom in vertical direction has the oil content to present the progressively degressive state distribution, be favorable to oil droplet gathering in the oil-water separation district, the mid-mounting has wave coalescence deoiling board in the oil-water separation district, wave coalescence deoiling plate's crest and trough are the horizontal plane, the side is the inclined plane, and processing has 2 lines staggered arrangement's oil drain hole on the crest horizontal plane, and processing has 1 line of row's cinder hole on the trough horizontal plane, and coalescence deoiling plate upper surface is hydrophilic, the lower surface is oleophilic for oil water separation, the utility model discloses utilize the physical structure and the physical characteristic of device to carry out oil water separation, have energy-concerving and environment-protective, convenient operation, energy consumption low, running cost low, the effectual advantage of separating oil.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the coalescing oil removal plate 5 in fig. 1.
Fig. 3 is a top view of fig. 2.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, but the present invention is not limited to the following embodiments.
Example 1
In fig. 1, 2 and 3, the oil-water separation device in the oilfield produced water treatment according to the embodiment is formed by connecting a tank 1, a second water distribution plate 2, a first partition plate 3, a second partition plate 4, a coalescence oil removal plate 5, an oil discharge pipe 6, a water outlet pipe 7, an oil separation inclined plate 8, a sediment hopper 9, a water inlet pipe 10, a first water distribution plate 11 and oleophylic hydrophobic particles 12.
A water inlet pipe 10 is processed below the left side wall of a box body 1, a first clapboard 3 and a second clapboard 4 are installed in the box body 1 to divide the inner cavity of the box body 1 into a coarse graining area A, an oil-water standing area B and an oil-water separating area C, the first clapboard 3 is hermetically connected with the front side wall, the rear side wall and the bottom of the box body 1, a gap is left between the first clapboard 3 and the top of the box body 1 to form a water flow channel, the second clapboard 4 is hermetically connected with the front side wall, the rear side wall, the top and the bottom of the box body 1, a first water distribution plate 11 is hermetically connected with the lower part in the coarse graining area, a second water distribution plate 2 is hermetically connected with the upper part, the first water distribution plate 11 and the second water distribution plate 2 are parallel and are hermetically connected with the front side wall, the rear side wall, the left side wall and the first clapboard 3 of the box body 1, a cavity between the first water distribution plate 11 and the, the oil-water distribution plate can also be anthracite or ceramsite, the oleophylic hydrophobic particles 12 enable the particle size of oil droplets in oil-containing water to be gradually increased, which is beneficial to coalescence of subsequent working sections, a cavity between the first water distribution plate 11 and the bottom of the box body 1 is communicated with a water inlet pipe 10, a cavity between the second water distribution plate 2 and the top of the box body 1 is communicated with an oil-water standing area B through a water flow channel at the top of the first partition plate 3, the oil-containing sewage enters a coarse graining area A through the water inlet pipe 10 to be fully contacted with the oleophylic hydrophobic particles 12, after the particle size of the oil droplets in the water is gradually increased, the oil-water standing area B enters the oil-water standing area B through the water flow channel above the second water distribution plate 2 and the first partition plate 3, a first slag discharge port B is arranged at the bottom of the box body 1 in the oil-water standing area B, a water distribution hole array is processed in the middle of the second partition plate 4 in a longitudinal equidistant, the hole center distance of two adjacent water distribution holes in the bottom row is 10mm, the hole diameters of the water distribution holes are 10mm, due to density difference of oil and water, the oil content in water from top to bottom in the vertical direction in the oil-water standing area B is distributed in a gradually decreasing state, namely the oil content in the water is lower as the water is closer to the bottom, the water quantity passing through the water distribution holes is larger, the corresponding flow velocity of the water is higher, the retention time of the water is shorter, the oil content in the water is higher as the water is closer to the upper part, the flow velocity of the water is lower, the retention time of the water in the oil-water separation area C is longer, 5 wavy coalescence oil removal plates 5 are arranged in the middle of the oil-water separation area C, wave crests and wave troughs of the wavy coalescence oil removal plates 5 are horizontal planes, the side surfaces are inclined planes, the inclined planes have inclination angles of 45 degrees, 2 rows of oil discharge holes C are processed on the, the diameter of the residue discharge hole d is 15mm, the coalescence oil-removing plate 5 is a polypropylene oil-removing plate or a polyethylene oil-removing plate, oil-containing water flows between the wave-shaped coalescence oil-removing plates 5, the water flow direction is changed continuously, the probability that mutual collision of oil droplets in the water is increased, and the oil droplets in the water can reach the surface of an upper wave plate more easily due to the density difference of the oil and the water in the flowing process of the oil-containing water, the oil droplets are accumulated more on the coalescence oil-removing plate 5 to form a layer of oil film, and the oil droplets on the oil film fall off along with the thickening of the oil film under the action of buoyancy and water flow impact, are gathered to an oil discharge hole c on the coalescence oil-removing plate 5 and rise to the water surface above the coalescence oil-removing plate 5 through the oil discharge hole c, an oil discharge pipe 6 is arranged above the right side wall of the box body 1, an inclined plate 8 and a water outlet pipe 7 are arranged in the middle, The bottom is toper sediment fill 9, and second row of cinder notch a is installed to sediment fill 9 bottom, and the dirty sediment of oiliness aquatic deposits in sediment fill 9, discharges through second row of cinder notch a, because in the oil-water separation district C from bottom to top oiliness water velocity of flow slows down gradually, and water is longer in the regional dwell time that gathers deoiling board 5, is favorable to the coalescence deoiling board 5 to separate out the oil of oiliness aquatic more, and the oil gathering that separates through coalescence deoiling board 5 is discharged through oil extraction pipe 6 in oil-water separation district C top, and the water of separating is discharged by outlet pipe 7 through oil removal swash plate 8 below.
Example 2
In this embodiment, a water inlet pipe 10 is disposed below the left sidewall of the box 1, a first partition plate 3 and a second partition plate 4 are disposed in the box 1 to divide the inner cavity of the box 1 into a coarse granulation zone a, an oil-water standing zone B, and an oil-water separation zone C, spherical oleophylic hydrophobic particles 12 are filled in the cavity between the first water distribution plate 11 and the second water distribution plate 2 in the coarse granulation zone a, the oleophylic hydrophobic particles 12 are quartz sand particles with a particle size of 2mm, anthracite, or ceramsite, a water distribution hole array is disposed in the middle of the second partition plate 4, the water distribution hole array is disposed in a manner of longitudinal equidistant arrangement, the distance between two adjacent water distribution holes in the upper row from top to bottom is 1.2 times the distance between two adjacent water distribution holes in the lower row, the distance between two adjacent water distribution holes in the bottom row is 10mm, the hole diameter of the water distribution holes is 5mm, 2 wave-shaped oil-water oil removal plates 5 are disposed in, the wave crest and the wave trough of the wave-shaped coalescence oil removing plate 5 are horizontal planes, the side surfaces are inclined planes, the inclination angle of the inclined planes is 30 degrees, 2 rows of oil discharging holes c which are arranged in a staggered mode are processed on the wave crest horizontal plane, the aperture of each oil discharging hole c is 5mm, 1 row of slag discharging holes d are processed on the wave trough horizontal plane, and the aperture of each slag discharging hole d is 10 mm. The other components and the connection relationship of the components are the same as those in embodiment 1.
Example 3
In this embodiment, a water inlet pipe 10 is disposed below the left sidewall of the box 1, a first partition plate 3 and a second partition plate 4 are disposed in the box 1 to divide the inner cavity of the box 1 into a coarse graining area a, an oil-water standing area B, and an oil-water separation area C, spherical oleophylic hydrophobic particles 12 are filled in the cavity between the first water distribution plate 11 and the second water distribution plate 2 in the coarse graining area a, the oleophylic hydrophobic particles 12 are quartz sand particles with a particle size of 5mm, anthracite, or ceramsite, a water distribution hole array is disposed in the middle of the second partition plate 4, the water distribution hole array is disposed in a manner of longitudinal equidistant arrangement, a distance between two adjacent water distribution holes in the upper row is 2 times of a distance between two adjacent water distribution holes in the lower row from top to bottom, a distance between two adjacent water distribution holes in the bottom row is 10mm, a hole diameter of 15mm, 10 wave-shaped oil removal plates 5 are disposed in the middle of the oil, the wave crest and the wave trough of the wave-shaped coalescence oil removing plate 5 are horizontal planes, the side surfaces are inclined planes, the inclination angle of the inclined planes is 60 degrees, 2 rows of oil discharging holes c which are arranged in a staggered mode are processed on the wave crest horizontal plane, the aperture of each oil discharging hole c is 5mm, 1 row of slag discharging holes d are processed on the wave trough horizontal plane, and the aperture of each slag discharging hole d is 20 mm. The other components and the connection relationship of the components are the same as those in embodiment 1.
Claims (8)
1. The utility model provides an oil-water separator in oil field produced water treatment which characterized in that: a water inlet pipe (10) is arranged below one side wall of the box body (1), a first partition plate (3) and a second partition plate (4) are arranged in the box body (1) to divide an inner cavity of the box body (1) into a coarse granulation area, an oil-water standing area and an oil-water separation area, the first partition plate (3) is hermetically connected with the front side wall, the rear side wall and the bottom of the box body (1), a gap is reserved between the first partition plate (3) and the top of the box body (1) to form a water flow channel, the second partition plate (4) is hermetically connected with the front side wall, the rear side wall, the top and the bottom of the box body (1), a first water distribution plate (11) is hermetically arranged below the coarse granulation area, a second water distribution plate (2) is hermetically arranged above the coarse granulation area, a cavity between the first water distribution plate (11) and the bottom of the box body (1) is communicated with the water inlet pipe (10), and spherical, the cavity between the second water distribution plate (2) and the top of the box body (1) is communicated with an oil-water standing area through a water flow channel at the top of the first partition plate (3), a first slag discharge port (b) is formed in the bottom of the box body (1) in the oil-water standing area, a water distribution hole array is arranged in the middle of the second partition plate (4), the oil-water standing area is communicated with an oil-water separation area through the water distribution hole array on the second partition plate (4), at least 2 wave-shaped coalescence oil removal plates (5) are arranged in the middle of the oil-water separation area, an oil discharge pipe (6) is arranged above the side wall, an oil separation inclined plate (8) and a water discharge pipe (7) are arranged below the side wall, a conical slag hopper (9) is arranged at the bottom of.
2. The oil-water separation device in the oilfield produced water treatment according to claim 1, characterized in that: the particle size of the oleophylic and hydrophobic particles (12) is 2-5 mm.
3. The oil-water separation device in the oilfield produced water treatment according to claim 1 or 2, characterized in that: the oleophylic and hydrophobic particles (12) are quartz sand or anthracite or ceramsite.
4. The oil-water separation device in the oilfield produced water treatment according to claim 1, characterized in that: the arrangement mode of the middle water distribution hole array of the second partition plate (4) is longitudinally arranged at equal intervals, the distance between the centers of two adjacent water distribution holes in the upper row is 1.2-2.0 times of that of two adjacent water distribution holes in the lower row from top to bottom, the distance between the centers of two adjacent water distribution holes in the bottom row is 10mm, and the diameter of each water distribution hole is 5-15 mm.
5. The oil-water separation device in the oilfield produced water treatment according to claim 1, characterized in that: the wave-shaped coalescence oil-removing plate (5) is characterized in that wave crests and wave troughs are horizontal planes, side surfaces are inclined planes, the inclination angle of each inclined plane is 30-60 degrees, oil discharge holes (c) are formed in the wave crest horizontal plane, and slag discharge holes (d) are formed in the wave trough horizontal plane.
6. The oil-water separation device in the oilfield produced water treatment according to claim 5, wherein: the oil discharge holes (c) are arranged in 2 rows in a staggered mode, and the aperture is 5-15 mm.
7. The oil-water separation device in the oilfield produced water treatment according to claim 5, wherein: the slag discharge holes (d) are 1 row, and the aperture is 10-20 mm.
8. The oil-water separation device in the oilfield produced water treatment according to claim 1 or 5, wherein: the coalescence deoiling plate (5) is a polypropylene deoiling plate or a polyethylene deoiling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020694217.8U CN212198602U (en) | 2020-04-29 | 2020-04-29 | Oil-water separation device in oilfield produced water treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020694217.8U CN212198602U (en) | 2020-04-29 | 2020-04-29 | Oil-water separation device in oilfield produced water treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212198602U true CN212198602U (en) | 2020-12-22 |
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ID=73830228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020694217.8U Expired - Fee Related CN212198602U (en) | 2020-04-29 | 2020-04-29 | Oil-water separation device in oilfield produced water treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212198602U (en) |
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2020
- 2020-04-29 CN CN202020694217.8U patent/CN212198602U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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Address after: No.61 Xiyan Road, Xi'an City, Shaanxi Province 710054 Patentee after: Shaanxi Chemical Research Institute Co.,Ltd. Address before: No.61 Xiyan Road, Xi'an City, Shaanxi Province 710054 Patentee before: SHAANXI RESEARCH DESIGN INSTITUTE OF PETROLEUM CHEMICAL INDUSTRY |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201222 |