CN210356128U - Novel membrane-oil-water separation equipment - Google Patents
Novel membrane-oil-water separation equipment Download PDFInfo
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- CN210356128U CN210356128U CN201920990831.6U CN201920990831U CN210356128U CN 210356128 U CN210356128 U CN 210356128U CN 201920990831 U CN201920990831 U CN 201920990831U CN 210356128 U CN210356128 U CN 210356128U
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Abstract
The utility model discloses a novel membrane-oil-water separation equipment, which mainly comprises a separator shell, an oil overflow port, a water inlet, a water outlet, a hydrophilic membrane and a hydrophobic membrane. Oily sewage enters from the water inlet, the shell has a certain inclination angle, and the oily sewage flows along the wall surface of the shell to form rotational flow by taking the central shaft of the shell as a rotating shaft. Since the oil and water have different densities, the centrifugal force generated by the rotation of the oil and water around the central shaft is also different, thereby separating the oil and water in the sewage. The oil is mainly gathered near the central shaft and overflows from an oil spilling port at the upper end of the shell after being further separated by a hydrophobic membrane. And the water is further separated through a hydrophilic membrane arranged in the middle of the shell, and the separated water flows out from a water outlet at the lower end of the shell. The hydrophilic membrane in the middle part is conical, so that small oil drops on the surface of the membrane can be gathered into large oil drops, and oil and water separation is facilitated. Compared with a common separation device, the membrane-oil-water separation device has higher separation efficiency and innovation.
Description
Technical Field
The invention relates to a membrane separation technology and a cyclone separator in the treatment of oily sewage in an oil field.
Background
Oil and gas, which are major energy sources, form a large amount of oily sewage during mining and refining, and the sewage is discharged into rivers without being treated, thereby causing serious environmental pollution. And the oil and the water in the sewage can be further used after separation treatment, thereby achieving the purposes of recycling resources and saving resources.
For the separation of oily sewage, there are mainly a chemical method, a physical separation method, a microbial decomposition method and a membrane separation technique. The single separation techniques, such as chemical, microbial decomposition and membrane separation, have problems of excessively high separation cost or long separation period, while the physical separation method generally has low separation efficiency. Therefore, in order to save the separation cost and improve the separation efficiency, a new type of separation apparatus combining a plurality of separation techniques is urgently needed.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: a novel high-efficiency low-cost oil-water separation device.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a novel membrane-oil-water separation device comprises a separator shell (6), wherein the upper end of the separator shell is provided with two water inlets (2) which are communicated with a pump; an oil overflow port (1) is arranged at the center of the upper end, so that the separated oil can overflow out conveniently; the middle part of the shell is funnel-shaped, so that sewage can form rotational flow conveniently; the lower end is a water outlet (7) with a circular tube shape, which is convenient for the separated sewage to flow out.
Further, aforementioned membrane-oil water separation equipment, its characterized in that: the middle part of the separator shell (6) is provided with a conical hydrophilic membrane (5), water molecules in the oily water can pass through the hydrophilic membrane, oil molecules are blocked, and the conical design helps small molecule oil to be gathered into large molecule oil.
Further, aforementioned membrane-oil water separation equipment, its characterized in that: install one-level hydrophobic membrane (4) between separator casing (6) top and hydrophilic membrane (5), one-level hydrophobic membrane (4) are round platform shape, and the upper end is connected with separator casing (6), and the lower extreme is connected with hydrophilic membrane (5), and the slope is the same with separator casing (6), carries out once filtering to oily sewage.
Further, aforementioned membrane-oil water separation equipment, its characterized in that: the secondary hydrophobic membrane (3) is installed on the top end of the separator shell (6), the secondary hydrophobic membrane (3) is funnel-shaped, the slope of the secondary hydrophobic membrane is the same as that of the primary hydrophobic membrane (4), and secondary filtration is carried out on oily sewage.
Further, aforementioned membrane-oil water separation equipment, its characterized in that: the center of the top end of the separator shell (6) is provided with an oil overflow port (1), the oil overflow port (1) is divided into an upper part and a lower part by the shell, wherein the lower part is a cylindrical three-stage hydrophobic membrane, and the oil-containing sewage is filtered for the third time.
The invention has the beneficial effects that: when oily sewage enters from the water inlet, certain initial velocity exists, rotational flow can be formed, oil and water in the sewage can be separated due to the difference of oil-water density, and the oil and the water are filtered by the first-stage hydrophobic membrane, the second-stage hydrophobic membrane, the third-stage hydrophobic membrane and the hydrophilic membrane, so that the oil-water separation efficiency is improved, and the sewage separation efficiency exceeds 95%.
Drawings
FIG. 1 is a schematic structural view of a membrane-oil-water separation apparatus according to the present invention;
FIG. 2 is a top view of the membrane-oil water separation device according to the present invention;
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, the upper end of the separator shell is provided with two water inlets (2) which are communicated with a pump; an oil overflow port (1) is arranged at the center of the upper end, so that the separated oil can overflow out conveniently; the middle part of the shell is funnel-shaped, so that sewage can form rotational flow conveniently; the lower end is a water outlet (7) with a circular tube shape, which is convenient for the separated sewage to flow out.
As shown in fig. 2, the oily sewage enters from the two water inlets (2) at a certain initial speed, and the housing has a certain inclination angle, so that the oily sewage flows along the wall surface of the housing with the central axis of the housing as a rotation axis to form a rotational flow. Since the oil and water have different densities, the centrifugal force generated by the rotation of the oil and water around the central shaft is also different, thereby separating the oil and water in the sewage. The separated oil floats upwards under the action of buoyancy, sequentially passes through the primary hydrophobic membrane (4), the secondary hydrophobic membrane (3) and the tertiary hydrophobic membrane for filtration, and finally overflows from the oil overflow port (1) at the upper end of the shell. The water is further separated through a conical hydrophilic membrane (5) arranged in the middle of the shell, and the separated water flows out from a water outlet (7) at the lower end of the shell.
The hydrophilic membrane in the middle part is conical, so that small oil drops on the surface of the membrane can be gathered into large oil drops, and oil and water separation is facilitated.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but any modifications or equivalent variations made in accordance with the technical spirit of the present invention are within the scope of the present invention as claimed.
The invention has the advantages that: the innovative membrane structure and the multi-stage separation process enable the membrane-oil-water separation equipment to have excellent oil-water separation performance, and the separation efficiency can reach 99% for oily sewage with large oil-water density difference.
Claims (5)
1. A novel membrane-oil-water separation device is characterized in that the upper end of a separator shell (6) is provided with two water inlets (2) which are communicated with a pump; an oil overflow port (1) is arranged at the center of the upper end, so that the separated oil can overflow out conveniently; the middle part of the shell is funnel-shaped, so that sewage can form rotational flow conveniently; the lower end is a water outlet (7) with a circular tube shape, which is convenient for the separated sewage to flow out.
2. The novel membrane-oil water separating device according to claim 1 is characterized in that the separator shell (6) is provided with a conical hydrophilic membrane (5) in the middle, water molecules in the oily water can pass through and oil molecules are blocked, and the conical design helps small molecule oil to be gathered into large molecule oil.
3. The novel membrane-oil water separating device as claimed in claim 1, wherein a primary hydrophobic membrane (4) is installed between the top end of the separator housing (6) and the hydrophilic membrane (5), the primary hydrophobic membrane (4) is in a truncated cone shape, the upper end of the primary hydrophobic membrane is connected with the separator housing (6), the lower end of the primary hydrophobic membrane is connected with the hydrophilic membrane (5), the slope of the primary hydrophobic membrane is the same as that of the separator housing (6), and the primary hydrophobic membrane (4) is used for filtering oily sewage once.
4. The novel membrane-oil water separating device as claimed in claim 1, characterized in that the top of the separator housing (6) is provided with a secondary hydrophobic membrane (3), the secondary hydrophobic membrane (3) is funnel-shaped, the slope of the secondary hydrophobic membrane is the same as that of the primary hydrophobic membrane (4), and the secondary filtration is performed on the oily sewage.
5. The novel membrane-oil water separation device as claimed in claim 1, wherein the center of the top end of the separator housing (6) is provided with an oil overflow port (1), the oil overflow port (1) is divided into an upper part and a lower part by the housing, wherein the lower part is a cylindrical three-stage hydrophobic membrane, and the oily sewage is filtered for the third time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990831.6U CN210356128U (en) | 2019-06-28 | 2019-06-28 | Novel membrane-oil-water separation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920990831.6U CN210356128U (en) | 2019-06-28 | 2019-06-28 | Novel membrane-oil-water separation equipment |
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| CN210356128U true CN210356128U (en) | 2020-04-21 |
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| CN201920990831.6U Active CN210356128U (en) | 2019-06-28 | 2019-06-28 | Novel membrane-oil-water separation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115531927A (en) * | 2022-09-19 | 2022-12-30 | 徐州中液过滤技术有限公司 | Oil dehydration impurity removal vacuum filter |
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2019
- 2019-06-28 CN CN201920990831.6U patent/CN210356128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115531927A (en) * | 2022-09-19 | 2022-12-30 | 徐州中液过滤技术有限公司 | Oil dehydration impurity removal vacuum filter |
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