CN110894085A - Inclined plate oil remover for oily sewage - Google Patents
Inclined plate oil remover for oily sewage Download PDFInfo
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- CN110894085A CN110894085A CN201911168972.0A CN201911168972A CN110894085A CN 110894085 A CN110894085 A CN 110894085A CN 201911168972 A CN201911168972 A CN 201911168972A CN 110894085 A CN110894085 A CN 110894085A
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- oil
- water
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- plate
- inclined plate
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- 239000010865 sewage Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 239000013527 degreasing agent Substances 0.000 claims abstract description 7
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 70
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Removal Of Floating Material (AREA)
- Sewage (AREA)
Abstract
The invention discloses an oil-containing sewage inclined plate degreaser, which comprises a box body, wherein an inclined plate group and a vertical oil weir plate are arranged in the box body along the width direction of the box body, the inclined plate group and the vertical oil weir plate divide the space in the box body into a water inlet area, an oil-water separation area and an oil-water discharge area which are sequentially arranged from front to back, the oil-water discharge area is divided into an oil chamber and a water chamber, the water chamber is divided into a water inlet chamber and a water discharge chamber, the water inlet chamber is shallow and is communicated with the water discharge chamber through the water weir plate, the upper part of the oil chamber is provided with an oil inlet communicated with the oil-water separation area, and the oil; the oil-water separation area is internally provided with a horizontal oil weir frame plate fixedly connected with a vertical oil weir plate, the inclined plate group is formed by stacking a plurality of inclined plate units in an up-down parallel manner, inclined plates on the inclined plate units adopt a wave structure, and the distance between the inclined plates of two adjacent inclined plate units is 10-50 mm. According to the invention, the sewage treatment capacity of the inclined plate oil remover is improved by modifying the internal structure of the inclined plate oil remover.
Description
Technical Field
The invention relates to an oil remover for oily sewage, in particular to an inclined plate oil remover.
Background
The inclined plate oil remover is used as important equipment for treating the sewage of the offshore oil production platform, and has the functions of separating and recovering the crude oil in the production sewage, so that the production sewage with the maximum oil content of 1500ppm is treated by the inclined plate oil remover, the oil content index is less than or equal to 200ppm, and the separated and recovered crude oil is conveyed into a closed discharge tank through a diaphragm pump. Along with the increase of the produced sewage amount of the oil production platform, when the sewage amount reaches the upper limit of the sewage treatment capacity of the inclined plate oil remover, the crude oil separated by the inclined plate oil remover can not be recovered in time, and enters subsequent sewage treatment equipment along with the produced sewage, so that the sewage treatment can not reach the standard finally. With the improvement of the environmental protection consciousness of the human society, the research on improving the sewage treatment capacity of the inclined plate oil remover by optimizing and modifying the internal structure of the inclined plate oil remover is very important.
Taking BZ34-1CEP oilfield inclined plate oil remover as an example: the sewage treatment design capacity of the inclined plate oil remover is 4800 cubic meters per day, and the actual sewage treatment capacity is 4800 cubic meters per day; the following problems were found to exist in actual production: 1) the water weir plate has an unreasonable structure, a large amount of water enters the oil collecting tank while dirty oil is recovered, and sometimes the separated oil cannot be timely recovered to the oil collecting tank; 2) the sludge and sand in the sewage are precipitated and accumulated at the bottom of the inclined plate oil remover, so that the inclined plate group can be blocked, and the effective space of the inclined plate oil remover is occupied; 3) the unreasonable arrangement of the water inlet pipe in the sloping plate degreaser leads to unstable flow state of the sewage in front of the sloping plate group, and the unreasonable arrangement of the water inlet pipe leads to poor separation effect of oil particles in the sewage. In order to ensure that various indexes of sewage reinjection meet the environmental protection requirement, an inclined plate oil remover capable of improving the sewage treatment capacity of oil field production is needed.
Disclosure of Invention
The invention provides an oil-containing sewage inclined plate oil remover with higher treatment capacity for solving the technical problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: an inclined plate oil eliminator for oily sewage comprises a box body, wherein an inclined plate group and a vertical oil weir plate are arranged in the box body along the width direction of the box body, the vertical oil weir plate is positioned behind the inclined plate group, the inclined plate group and the vertical oil weir plate divide the space in the box body into a water inlet area, an oil-water separation area and an oil-water discharge area which are sequentially arranged from front to back, a water inlet pipe is arranged in the water inlet area and fixedly connected to the box body, the oil-water discharge area is divided into an oil chamber and a water chamber by an internal vertical partition plate arranged along the length direction of the oil eliminator, the water chamber is divided into a water inlet chamber and a water discharge chamber by a water weir plate arranged along the length direction of the oil eliminator, the water inlet chamber is shallow, the bottom of the water inlet chamber is provided with a water inlet communicated with the oil-water separation area, the water discharge chamber is provided with a water outlet, and the water inlet chamber is, an oil inlet communicated with the oil-water separation region is formed in the upper portion of the oil chamber, a gate capable of lifting is arranged on the oil inlet, and an oil outlet is formed in the bottom of the oil chamber; the oil-water separation area is internally provided with a horizontal oil weir frame plate fixedly connected with the vertical oil weir plate, the inclined plate group is formed by stacking a plurality of inclined plate units in parallel from top to bottom, inclined plates on the inclined plate units are of a wave structure, and the distance between the inclined plates of two adjacent inclined plate units from top to bottom is 10-50 mm.
And a flow stabilizing plate parallel to the inclined plate group is arranged in the water inlet area, and is fixed in the box body and positioned between the water inlet pipe and the inclined plate group.
The bottom plate of the box body adopts a slope surface structure, and a sand outlet is arranged at a low position; and a flushing desanding pipeline is fixed on the bottom plate of the box body, and a jet hole facing the bottom plate of the box body is formed in the flushing desanding pipeline.
The water inlet pipe is of an L-shaped structure.
The invention has the advantages and positive effects that: the recovered sump oil is not influenced by the height of the liquid level by adopting a structure that a gate is arranged on the oil inlet; the flow state of the sewage is stabilized by arranging the flow stabilizing plate and optimizing the structure of the water inlet pipe; the inclined plate group is reselected according to the shallow pool theory, so that the separation effect of oil particles in the sewage is improved; through add the swash plate and wash the desanding pipeline in bottom half, can in time clear up the silt particle that deposits the accumulation, prevent that silt particle from blockking up swash plate group and occupying swash plate degreaser effective space because silt particle deposits. In conclusion, the internal structure of the inclined plate oil remover is improved, the sewage treatment capacity of the inclined plate oil remover is improved, and favorable conditions are provided for the sewage reinjection to reach the standard.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a side view of fig. 1.
In the figure: 1. a water inlet pipe; 2. a horizontal oil weir frame plate; 3. a box body; 4. a gate; 5. a weir plate; 6. a vertical weir plate; 7. a swash plate group; 8. a flow stabilizer; 9. flushing a desanding pipeline; 10. a water inlet chamber; 11. a drain chamber; 12. a vertical partition plate; 13. an oil chamber.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 3, an oil-contaminated water inclined plate degreaser includes a tank 3, an inclined plate group 7 and a vertical oil weir plate 6 are disposed in the tank 3 along a width direction of the tank, the vertical oil weir plate 6 is disposed behind the inclined plate group 7, and the inclined plate group 7 and the vertical oil weir plate 6 divide a space in the tank 3 into a water inlet area, an oil-water separation area, and an oil-water discharge area, which are sequentially disposed from front to back.
Be equipped with inlet tube 1 in the district of intaking, inlet tube 1 rigid coupling is in on the box 3.
The oil-water discharge area is divided into an oil chamber 13 and a water chamber by an internal vertical partition plate 12 arranged along the length direction of the oil remover, the water chamber is divided into an inlet chamber 10 and a drain chamber 11 by a weir plate 5 arranged along the length direction of the oil remover, the inlet chamber 10 is shallow, the bottom of the inlet chamber is provided with a water inlet communicated with the oil-water separation area, the drain chamber 11 is provided with a water outlet, and the inlet chamber 10 is communicated with the drain chamber 11 through the weir plate 5.
An oil inlet communicated with the oil-water separation region is formed in the upper portion of the oil chamber 13, a gate 4 capable of lifting is arranged on the oil inlet, and an oil outlet is formed in the bottom of the oil chamber.
And a horizontal oil weir frame plate 2 fixedly connected with the vertical oil weir plate 6 is arranged in the oil-water separation zone.
The inclined plate group 7 is formed by stacking a plurality of inclined plate units in parallel from top to bottom, inclined plates on the inclined plate units are of a wave structure, and the distance between the inclined plates of two adjacent inclined plate units from top to bottom is 10-50 mm.
The oil remover reselects the inclined plate group according to the shallow pool theory, and improves the separation effect of oil particles in sewage.
In this embodiment, a flow stabilizer 8 parallel to the inclined plate group 7 is disposed in the water inlet region, and the flow stabilizer 8 is fixed in the tank 3 and located between the water inlet pipe 1 and the inclined plate group 7, so as to stabilize the flowing state of the sewage.
The bottom plate of the box body 3 adopts a slope surface structure, and a sand outlet is arranged at a low position; a flushing desanding pipeline 9 is fixed on the bottom plate of the box body 3, and a jet hole facing the bottom plate of the box body is formed in the flushing desanding pipeline 9. The structure can timely clear up the silt accumulated by sedimentation, and prevent the silt from blocking the inclined plate group and occupying the effective space of the inclined plate oil remover due to silt sedimentation.
The inlet tube 1 adopts L shape structure, can reduce the impact of sewage to the bottom half, stabilizes the sewage flow state.
The working principle of the invention is as follows:
oily sewage enters a water inlet area in the box body through a water inlet pipe, flows over a flow stabilizing plate, enters the inclined plate group after flow stabilization for oil-water separation and desanding, then the separated oil floats to the upper part of a horizontal oil weir frame plate of an oil-water mixing area, the sewage sinks to the lower part of the horizontal oil weir frame plate of the oil-water mixing area, the oil enters an oil chamber through an oil inlet at the upper part of the oil chamber, the sewage enters a water inlet chamber through a water inlet at the lower part of the water inlet chamber, and flows over a water weir plate to enter a water. In the process of treating the oily sewage, the silt in the oily sewage is gradually settled at the bottom of the box body, and the flushing desanding pipeline can be used for flushing desanding.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (4)
1. An inclined plate oil remover for oily sewage comprises a box body and is characterized in that an inclined plate group and a vertical oil weir plate are arranged in the box body along the width direction of the box body, the vertical oil weir plate is positioned behind the inclined plate group, the inclined plate group and the vertical oil weir plate divide the space in the box body into a water inlet area, an oil-water separation area and an oil-water discharge area which are sequentially arranged from front to back,
a water inlet pipe is arranged in the water inlet area and is fixedly connected on the box body,
the oil-water discharge area is divided into an oil chamber and a water chamber by an internal vertical partition plate arranged along the length direction of the oil remover, the water chamber is divided into a water inlet chamber and a water discharge chamber by a water weir plate arranged along the length direction of the oil remover, the water inlet chamber is shallow, the bottom of the water inlet chamber is provided with a water inlet communicated with the oil-water separation area, the water discharge chamber is provided with a water outlet, the water inlet chamber is communicated with the water discharge chamber through the water weir plate,
an oil inlet communicated with the oil-water separation region is formed in the upper portion of the oil chamber, a gate capable of lifting is arranged on the oil inlet, and an oil outlet is formed in the bottom of the oil chamber;
a horizontal oil weir frame plate fixedly connected with the vertical oil weir plate is arranged in the oil-water separation zone,
the inclined plate group is formed by stacking a plurality of inclined plate units in parallel up and down, inclined plates on the inclined plate units adopt a wave structure,
the distance between the inclined plates of the two adjacent upper and lower inclined plate units is 10-50 mm.
2. The oil-contaminated water swash plate degreaser of claim 1, wherein a flow stabilizer is provided in the water inlet area, parallel to the swash plate assembly, and fixed in the tank between the water inlet pipe and the swash plate assembly.
3. The oil-contaminated water swash plate degreaser of claim 1, characterized in that, the bottom plate of the box body adopts a slope structure, and a sand outlet is arranged at a low position; and a flushing desanding pipeline is fixed on the bottom plate of the box body, and a jet hole facing the bottom plate of the box body is formed in the flushing desanding pipeline.
4. The inclined plate degreaser for oily sewage of claim 1 wherein the inlet pipe is of an L-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168972.0A CN110894085A (en) | 2019-11-25 | 2019-11-25 | Inclined plate oil remover for oily sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168972.0A CN110894085A (en) | 2019-11-25 | 2019-11-25 | Inclined plate oil remover for oily sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110894085A true CN110894085A (en) | 2020-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911168972.0A Pending CN110894085A (en) | 2019-11-25 | 2019-11-25 | Inclined plate oil remover for oily sewage |
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| Country | Link |
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| CN (1) | CN110894085A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826638A (en) * | 2012-02-21 | 2012-12-19 | 胜利油田胜利勘察设计研究院有限公司 | Multiphase flow assembly type closed coagulation settling device |
| CN202786162U (en) * | 2012-07-04 | 2013-03-13 | 中国石油天然气集团公司 | Combined oil-gas separator |
| CN206554911U (en) * | 2017-03-06 | 2017-10-13 | 东营市成功石油科技有限责任公司 | A kind of adjustable crude oil multiphase separator |
| CN109652113A (en) * | 2017-10-10 | 2019-04-19 | 中国石油天然气股份有限公司 | Oil-gas-water three-phase separation |
| CN212050632U (en) * | 2019-11-25 | 2020-12-01 | 中海油能源发展股份有限公司 | Inclined plate oil remover for oily sewage |
-
2019
- 2019-11-25 CN CN201911168972.0A patent/CN110894085A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826638A (en) * | 2012-02-21 | 2012-12-19 | 胜利油田胜利勘察设计研究院有限公司 | Multiphase flow assembly type closed coagulation settling device |
| CN202786162U (en) * | 2012-07-04 | 2013-03-13 | 中国石油天然气集团公司 | Combined oil-gas separator |
| CN206554911U (en) * | 2017-03-06 | 2017-10-13 | 东营市成功石油科技有限责任公司 | A kind of adjustable crude oil multiphase separator |
| CN109652113A (en) * | 2017-10-10 | 2019-04-19 | 中国石油天然气股份有限公司 | Oil-gas-water three-phase separation |
| CN212050632U (en) * | 2019-11-25 | 2020-12-01 | 中海油能源发展股份有限公司 | Inclined plate oil remover for oily sewage |
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