CN209815822U - Oil-water coalescence-separation device - Google Patents
Oil-water coalescence-separation device Download PDFInfo
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- CN209815822U CN209815822U CN201920484421.4U CN201920484421U CN209815822U CN 209815822 U CN209815822 U CN 209815822U CN 201920484421 U CN201920484421 U CN 201920484421U CN 209815822 U CN209815822 U CN 209815822U
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Abstract
The utility model discloses an oil-water coalescence-separation device, the device main part are horizontal knockout drum, and one end is equipped with the inlet, and oil drain port and leakage fluid dram are respectively established to the upper and lower side of other end, and the jar is internal to contain and to contain coalescence filter core and multistage coalescence filler. After entering a separation tank from a liquid inlet, an oil-water mixed phase firstly flows through a coalescence filter element for demulsification, small oil drops are coalesced into large oil drops, and then sequentially pass through two stages of coalescence fillers, the oil drops are further coalesced and enlarged to finally form a continuous oil film in a separation zone, so that oil-water separation is realized, an oil phase with a lighter specific gravity overflows from an upper oil outlet and enters an oil storage tank, and a water phase after oil removal is discharged through a liquid discharge port. The device is used for separating and removing the insoluble oil in the aqueous phase solution, belongs to physical separation, does not generate destructive influence on an original solution system, and has good separation effect on the emulsified oil and the dispersed oil.
Description
Technical Field
The utility model relates to a water treatment technology, in particular to the oil-water separation of desulfurization and decarburization solvents in the petrochemical industry and other industries.
Background
In petrochemical industry and natural gas industry, specific solvents are used for desulfurization and decarburization of natural gas and oil refining gas, when a common solvent (such as ethanolamine) is in reverse contact with a feed gas to absorb acid gas, components such as heavy hydrocarbon in the feed gas enter a solvent system along with the solvent and are dissociated in the solvent system in the form of condensate oil, so that oil pollution of the solvent system is caused. The oil liquid mainly has the forms of floating oil, dispersed oil, emulsified oil and dissolved oil, wherein the floating oil and dispersed oil drops have larger grain sizes and are easy to remove through mechanical separation, and the emulsified oil drops are small and can form a stable oil-in-water structure with water, so that the separation is difficult.
The existing physical and chemical demulsification technologies such as flocculation, air flotation, electrochemical methods, advanced oxidation and the like can cause the degradation and the component change of the desulfurization solvent, so that the degradation and the component change of the desulfurization solvent are not caused. Demulsification by physical means is most suitable; the settling method, the centrifugal separation method and the adsorption separation method are only effective in removing floating oil and dispersed oil, the separation efficiency of emulsified oil is low, the physical means can not simultaneously meet the separation requirement of polymorphic oil in a solvent, and meanwhile, the existing oil removing equipment also has the defects of low oil removing efficiency, large occupied area of the equipment and single oil removing type.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to the current technical situation that current deoiling equipment deoiling efficiency is low, equipment area is big, the deoiling type is single, the utility model provides an oil-water coalescence-separation device.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an oil-water coalescence-separation device, includes the horizontal separation tank jar body, horizontal separation tank jar body one end is equipped with the inlet, and jar internal coalescence filter core region, multistage coalescence filler district and the oil-water separation district of being equipped with, coalescence filter core region is located the front in multistage coalescence filler district, and the oil-water separation district is located the end of jar body, and the coalescence filter core region comprises a plurality of coalescence filter core of installing on the base, and the filler between the multistage coalescence filler district passes through runner baffle mutual isolation and forms specific runner, and the oil-water separation district is equipped with separation zone baffle, screen cloth, oil drain port and leakage fluid dram, and the oil-water separation district separates into upper and lower two parts through the screen cloth.
Preferably, the coalescence filter element is of a cylindrical structure and is formed by overlapping a plurality of layers of different functional materials, and the basic structure comprises an inner wall framework, a demulsification layer, a plurality of coalescence layers, an outer framework and a top end sealing cover.
More preferably, the placement direction of the coalescence filter elements is parallel to the solution flowing direction, the filter elements are uniformly distributed on the base, the solution to be separated enters the inner wall of the cylinder from the bottom of the filter element, passes through multiple layers of separation media under the driving of pressure and flows out from the outer wall of the cylinder of the filter element.
Preferably, the pore size of the demulsifying layer is 0.1-1.0 μm, and the material is a hydrophobic polymer membrane such as a PTFE material. When emulsified oil drops penetrate through the membrane pores under the drive of pressure, the hydrophobic membrane intercepts the water membrane in the oil-in-water group outside the membrane, so that the oil drops inside the water membrane are forced to penetrate through the membrane pores, and demulsification and oil-water separation are realized.
Preferably, the multi-layer aggregation layer is formed by overlapping multiple layers of materials with gradually changing precision, and is formed by overlapping hydrophobic fiber materials with the pore size of 1-10 microns, 10-20 microns and the like, wherein the materials are polypropylene, polyester, glass fiber and the like.
Preferably, the filler structure of the multistage coalescence filler zone is formed by arranging and stacking a plurality of layers of corrugated plates according to a certain angle, and the selected material is a hydrophobic polymer material or a metal material, such as polyvinyl chloride or stainless steel.
Preferably, the amount of the multi-stage coalescence packing can be adjusted according to the oil content of the treatment solution and the oil removal requirement, such as a two-stage arrangement consisting of two-stage packing in series, a three-stage arrangement consisting of three-stage packing in series, and the like.
Preferably, the screen is a metal screen with a super-hydrophilic surface, only the aqueous solution is allowed to permeate through the screen, oil drops and an oil film are intercepted, and the oil is prevented from flowing into the water outlet.
The oil-water coalescence-separation device is based on the principle of coalescence-oil removal, collects oil drops with different particle sizes by a multi-stage separation unit combining coalescence filter elements, coalescence filler and coalescence filler through interception and collision, breaks and coalesces dispersed oil and emulsified oil in a solvent, and gradually coalesces free oil drops into an oil film continuous phase to realize efficient separation of various oil-water mixed phases.
The utility model has the advantages that:
1. the combined action of the coalescence filter element and the multistage coalescence filler is adopted, the particle size distribution of oil drops in the water body is effectively changed, and the subsequent separation effect is improved by coalescence of small oil drops into large oil drops and oil films.
2. The special flow channel is formed by the separation of the baffle plates among different coalescence units, the contact area of the oil-water mixed liquid and the coalescence separation material is effectively increased under the action of multiple times of coalescence, the time of oil-water separation is prolonged, and the oil-water separation is fully realized.
3. The coalescence technology belongs to physical separation, does not change the chemical properties of the original water body, does not need to introduce any chemical agent, and does not generate destructive influence on the original solution system.
Drawings
FIG. 1 is a pictorial view of the present invention;
FIG. 2 is a schematic view of a coalescing filter element base;
FIG. 3 is a schematic view of a coalescing filter element;
FIG. 4 is a schematic illustration of a screen for the oil and water separation zone;
in the figure, 1, a liquid inlet, 2, a separation tank body, 3, an oil outlet, 4, a liquid outlet, 5, a coalescence filter element base, 6, a coalescence filter element, 7, a flow channel baffle, 8, coalescence filler, 9, a separation zone baffle, 10, a separation zone screen and 11, a separation tank base are arranged in sequence; 6.1 emulsion breaking layer film, 6.2 inner side aggregation layer and 6.3 outer side aggregation layer.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Example 1
The oil-water coalescence-separation device shown in fig. 1 comprises a horizontal separation tank body 2, wherein one end of the horizontal separation tank body is provided with a liquid inlet 1, a coalescence filter core area 6, a multistage coalescence filler area 8 and an oil-water separation area are arranged in the tank body, the coalescence filter core area 6 is positioned in front of the multistage coalescence filler area 8, the oil-water separation area is positioned at the tail end of the tank body 2, the coalescence filter core area 6 is composed of a plurality of coalescence filter cores arranged on a base 5, fillers among the multistage coalescence filler areas 8 are mutually isolated through a flow channel baffle 7 to form a specific flow channel, the oil-water separation area is provided with a separation area baffle 9, a screen 10, an oil discharge port 3 and a liquid discharge port 4, the oil-water separation area is separated into an upper oil discharge part and a. The multistage coalescence fillers 8 are mutually isolated by a flow channel baffle 7 to form a specific flow channel, the control solution flows through the coalescence fillers 8 one by one and enters an oil-water separation zone at the tail end of a separation tank, and the separated oil phase is isolated by a separation zone baffle 9 and a screen 10 and finally discharged to an oil storage tank through an oil discharge port 3; the water phase in the oil-water separation zone enters the lower part of the tank body through the separation zone screen 10, and the solution after oil removal is discharged from the liquid outlet 4.
Furthermore, the coalescence filter element is of a cylindrical structure and is formed by overlapping a plurality of layers of different functional materials, and the basic structure comprises an inner wall framework, a demulsification layer 6.1, an inner side coalescence layer 6.2, an outer side coalescence layer 6.3, an outer framework and a top end sealing cover; the placement direction of the coalescence filter elements is parallel to the solution flowing direction, a plurality of filter elements are uniformly distributed on the base, the solution to be separated enters the inner wall of the cylinder from the bottom of the filter elements, passes through a plurality of layers of separation media under the driving of pressure and flows out from the outer wall of the cylinder of the filter elements; the multilayer aggregation layer is formed by overlapping multiple layers of materials with gradient precision, and is formed by overlapping hydrophobic fiber materials with aperture sizes of 1-10 mu m, 10-20 mu m and the like, wherein the materials are polypropylene, polyester, glass fiber or the like.
Furthermore, the pore size of the demulsifying layer is 0.1-1.0 μm, and the material is a hydrophobic polymer membrane, such as a PTFE material. When emulsified oil drops penetrate through the membrane pores under the drive of pressure, the hydrophobic membrane intercepts the water membrane in the oil-in-water group outside the membrane, so that the oil drops inside the water membrane are forced to penetrate through the membrane pores, and demulsification and oil-water separation are realized.
Furthermore, the filler of the multistage coalescence filler zone is formed by arranging and overlapping a plurality of layers of corrugated plates according to a certain angle, and the selected material is a hydrophobic high polymer material or a metal material, such as polyvinyl chloride or stainless steel; the number of the multistage coalescence packing areas can be adjusted according to the oil content in the treatment solution and the oil removal requirement, such as a two-stage arrangement formed by two-stage packing in series, a three-stage arrangement formed by three-stage packing in series, and the like.
The screen is a metal screen with the surface subjected to super-hydrophilic treatment, only water phase solution is allowed to permeate through the screen, oil drops and an oil film are intercepted, and the oil is prevented from entering a water outlet.
The working principle of the specific implementation mode is as follows: after the oil-water mixed phase enters the separation tank, the oil-water mixed phase firstly penetrates through the coalescence filter element, enters from the bottom of the filter element, passes through a multilayer separation medium under the drive of pressure, and when emulsified oil drops penetrate through membrane pores of 0.1-1.0 mu m, a water film in an oil-water group is intercepted outside the membrane by a hydrophobic membrane, so that the oil drops inside the water film are forced to penetrate through the membrane pores, and demulsification and oil-water separation are realized. The oil-water phase continues to pass through the coalescence fiber layer, and the oil drops are intercepted when colliding with the fibers of the coalescence material, coalesced into large oil drops and flow out through the outer wall of the filter element. Then the oil drops enter a flow channel formed by the separation of a flow channel baffle plate, sequentially pass through a plurality of stages of coalescence packing, adhere to the surface of hydrophobic packing, roll along the flow direction, are converged into oil drops with larger particle size by adjacent oil drops, finally are converged into an oil film of a continuous phase, float above a water phase, flow to a separation zone and overflow from an oil discharge port; the water phase is discharged from a liquid outlet below the tank body through the separation zone screen.
Claims (7)
1. The utility model provides an oil-water coalescence-separation device, includes the horizontal separation jar body, horizontal separation jar body one end be equipped with the inlet, its characterized in that jar internal coalescence filter core region, multistage coalescence filler district and oil-water separation district that is equipped with, coalescence filter core region is located the front in multistage coalescence filler district, and oil-water separation district is located the end of jar body, and the coalescence filter core region comprises a plurality of coalescence filter core of installing on the base, and the filler between the multistage coalescence filler district passes through runner baffle mutual isolation and forms specific runner, and oil-water separation district is equipped with separation zone baffle, screen cloth, oil drain port and leakage fluid dram, and oil-water separation district separates into upper and lower two parts through the screen cloth, and separation zone baffle is located.
2. The oil-water coalescence-separation device according to claim 1, wherein the coalescence-filter element has a cylindrical structure, and is formed by stacking a plurality of layers of different functional materials, and the structure comprises an inner wall framework, a demulsification layer, a plurality of coalescence layers, an outer framework and a top end cover.
3. The coalescer/separator device of claim 2, wherein the coalescing filter element is disposed in a direction parallel to the direction of flow of the solution, and a plurality of filter elements are uniformly arranged on the base.
4. The oil-water coalescence-separation device according to claim 2, wherein the demulsification layer has a pore size of 0.1-1.0 μm and is made of a hydrophobic polymer film.
5. The oil-water coalescence-separation device according to claim 2, wherein the multiple coalescing layers are formed by stacking multiple layers of precision-graded materials, and are formed by stacking hydrophobic fiber materials with aperture sizes of 1-10 μm and 10-20 μm, and the materials are polypropylene, polyester or glass fibers.
6. The oil-water coalescence-separation device of claim 5, wherein the filler structure of the multi-stage coalescence-filler region is formed by stacking a plurality of corrugated plates arranged at an angle, and the selected material is a hydrophobic polymer material or a metal material.
7. The coalescer according to claim 1, wherein the screen is divided into an upper and a lower part, and the screen is a metal screen having a super-hydrophilic surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920484421.4U CN209815822U (en) | 2019-04-11 | 2019-04-11 | Oil-water coalescence-separation device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920484421.4U CN209815822U (en) | 2019-04-11 | 2019-04-11 | Oil-water coalescence-separation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320235A (en) * | 2020-02-12 | 2020-06-23 | 中山市比斯坦环保科技有限公司 | Process for high-precision three-stage treatment of three-phase separator system |
| CN112354262A (en) * | 2021-01-12 | 2021-02-12 | 森诺科技有限公司 | Single-layer cavity full-gravity-balance oil-gas-water treatment integrated device |
| CN113088401A (en) * | 2021-04-01 | 2021-07-09 | 嘉兴学院 | Illegal cooking oil pretreatment system |
| CN113277598A (en) * | 2021-06-28 | 2021-08-20 | 重庆工商大学 | Method and device for treating oily wastewater by coalescence of electric field and corrugated plate |
| CN115925204A (en) * | 2023-02-14 | 2023-04-07 | 珠海巨涛海洋石油服务有限公司 | Offshore oilfield production water on-site treatment and on-site reinjection system and process |
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2019
- 2019-04-11 CN CN201920484421.4U patent/CN209815822U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111320235A (en) * | 2020-02-12 | 2020-06-23 | 中山市比斯坦环保科技有限公司 | Process for high-precision three-stage treatment of three-phase separator system |
| CN112354262A (en) * | 2021-01-12 | 2021-02-12 | 森诺科技有限公司 | Single-layer cavity full-gravity-balance oil-gas-water treatment integrated device |
| WO2022151935A1 (en) * | 2021-01-12 | 2022-07-21 | 森诺科技有限公司 | Single-layer-cavity, full-gravity-balance, integrated oil-gas-water treatment device |
| CN113088401A (en) * | 2021-04-01 | 2021-07-09 | 嘉兴学院 | Illegal cooking oil pretreatment system |
| CN113088401B (en) * | 2021-04-01 | 2022-07-12 | 嘉兴学院 | Illegal cooking oil pretreatment system |
| CN113277598A (en) * | 2021-06-28 | 2021-08-20 | 重庆工商大学 | Method and device for treating oily wastewater by coalescence of electric field and corrugated plate |
| CN115925204A (en) * | 2023-02-14 | 2023-04-07 | 珠海巨涛海洋石油服务有限公司 | Offshore oilfield production water on-site treatment and on-site reinjection system and process |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230726 Address after: North 2nd Floor, Building 1, No. 16, Longtan Road, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province, 311121 Patentee after: ZHEJIANG HINEW ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 313117 Lincheng Town Industrial Concentration Zone, Changxing County, Huzhou, Zhejiang Province Patentee before: ZHEJIANG HAINIU ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |