CN213416586U - Cyclone floating separator with demulsification and coalescence functions - Google Patents
Cyclone floating separator with demulsification and coalescence functions Download PDFInfo
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- CN213416586U CN213416586U CN202021940026.1U CN202021940026U CN213416586U CN 213416586 U CN213416586 U CN 213416586U CN 202021940026 U CN202021940026 U CN 202021940026U CN 213416586 U CN213416586 U CN 213416586U
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- 238000004581 coalescence Methods 0.000 title claims abstract description 34
- 238000007667 floating Methods 0.000 title abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 14
- 238000005188 flotation Methods 0.000 claims abstract description 13
- 230000005684 electric field Effects 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims abstract description 8
- 238000005192 partition Methods 0.000 claims description 55
- 238000000034 method Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- -1 oil-out Substances 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 27
- 239000007789 gas Substances 0.000 description 15
- 239000012071 phase Substances 0.000 description 11
- 235000019476 oil-water mixture Nutrition 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003570 air Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 150000001875 compounds Chemical class 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
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- 230000000630 rising effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
The utility model discloses an air flotation separator with breakdown of emulsion coalescence function, including a section of thick bamboo in inlet tube, intake pipe, ejector, toper, around a section of thick bamboo in flow tube, the straight flange, coalescence filler, oil-out, gas vent, delivery port, drain, impingement baffle, equipment barrel, upper cover, low head, electrode interface. The utility model has the advantages that: the demulsifying agent can be avoided by electric field demulsification, so that the running cost and the operation difficulty of the cyclone floating equipment are reduced; the separation precision is improved through the coalescence packing, and the low oil content of the effluent is favorable for environmental protection and water resource recycling, and simultaneously, the increase of the recovered oil amount brings higher economic return.
Description
Technical Field
The utility model relates to a cyclone floating separator specifically is a cyclone floating separator with breakdown of emulsion coalescence function belongs to the oil-water separation equipment technical field of oil field development.
Background
The oil-gas industry relates to a large number of oil-water separation working conditions, and reasonable treatment processes and equipment are needed to realize efficient oil-water separation. Because the exploitation enters the middle and later stages, the content of the emulsion and the content of the oil extraction agent in the oil field produced liquid and other oil-containing water bodies in China are increased, so that the emulsion treatment capacity and the treatment difficulty are increased, the emulsion breaking problem needs to be solved in the oil-water separation process, and the separation effect is improved. Common oily sewage treatment processes comprise an inclined plate coalescence deoiling process, a hydraulic cyclone process, an air flotation process and the like, and a cyclone flotation process couples the air flotation process and the cyclone process, so that the common oily sewage treatment process has the advantages of low investment, small occupied area, high separation efficiency and the like, but the conventional cyclone flotation separation equipment can treat an oil-water mixture with high oil content, but does not have demulsification capacity and needs to be additionally provided with a demulsifier. The additional demulsifier increases the equipment operation and maintenance costs. The micro oil drops formed in the oil-water mixture in the pipeline conveying process and the micro oil drops formed in the demulsification process need to be treated by a separation technology with higher separation precision, and the traditional cyclone air floatation separator can only separate the oil drops with the particle size of more than 10 microns and has low separation precision.
The cyclonic floating oil-water separation technology is typically as disclosed in patent CN201737739U, a cyclonic floating oil-water separator and a floatation generator in patent CN102626560A, a cyclonic floating oil-water separator in patent CN102153165A, and an oil-water separator in patent CN111039432A, which facilitate the integration of the cyclonic floating process. In the aspect of structural and functional design, the cyclone separation and the air flotation separation are combined for use only by considering the structural design of the equipment, and the influence of the use of a demulsifier on the operation and maintenance cost of the equipment caused by the loss of the demulsification function is not considered; the low separation precision results in low oil recovery amount and high oil content in the effluent, which affects the economic benefit and the environmental protection and the water resource recycling.
The existing cyclone floating equipment has the problems of low separation precision and need of adding demulsifying agents. The electric field demulsification technology and the method of coupling the coalescence packing separation technology with the cyclone floating separation equipment can reduce the treatment cost and improve the separation effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cyclone floating separator with breakdown of emulsion coalescence function for the solution problem, solve the problem that conventional produced water treatment process equipment structure is complicated, area is big, the running cost is high, add the medicine volume big, unable breakdown of emulsion, water oil separating precision is low. The device has good oil-water separation effect, low treatment cost and small occupied area.
The utility model discloses a following technical scheme realizes above-mentioned purpose: a cyclone flotation separator with demulsification and coalescence functions comprises an equipment cylinder; the top of equipment barrel is provided with the upper cover, the below of equipment barrel is provided with the low head, the external ejector of equipment barrel is as the inlet, just be connected with inlet tube and intake pipe on the ejector respectively, oil-out and gas vent are installed to the upper cover opening, the drain is installed to the opening of low head, delivery port and electrode interface are installed to the opening of equipment barrel, the inside interior spacer that comprises spacer in cone and the straight flange that is provided with of equipment barrel, the below at the spacer in the straight flange is installed to the spacer in the cone, gap department between spacer and the equipment barrel inner wall is filled with the coalescence filler in the straight flange, wear the flow around pipe in cone and the inner spacer in the straight flange, the protecting against shock board is installed to the bottom of flow around pipe.
As a further aspect of the present invention: the jet device adopts a venturi tube as a liquid inlet and gas dissolving device, and the gas source of the dissolved gas can be nitrogen, air, natural gas and the like.
As a further aspect of the present invention: the diameter of the impingement baffle is 0.1 to 0.7 times of the diameter of the equipment cylinder.
As a further aspect of the present invention: the diameter of the flow-around pipe is 0.1 to 0.5 times of the diameter of the straight-side inner partition cylinder, the height of the flow-around pipe exceeds the upper edge of the straight-side inner partition cylinder 6, and the length of the flow-around pipe is 0.1 to 0.5 times of the diameter of the cylinder body of the equipment.
As a further aspect of the present invention: the bevel angle of the cone-shaped inner partition cylinder is between 30 and 80 degrees.
As a further aspect of the present invention: the diameter of the inner partition cylinder of the straight edge is 0.2 to 0.9 times of the diameter of the cylinder body of the equipment.
As a further aspect of the present invention: the coalescence filler is made of metal or polyester, the precision is 3-100 microns, and the thickness is 10-200 mm.
As a further aspect of the present invention: the upper end socket is connected with the equipment barrel in a flange connection or welding connection mode according to different diameters of the equipment, and a manhole is arranged on the equipment barrel for overhauling, installing and using when the upper end socket is connected in a welding mode.
As a further aspect of the present invention: two electrodes of the electrode interface are respectively connected with a conical inner partition tube and a straight-side inner partition tube of the equipment through cables, and a demulsification electric field is formed among the conical inner partition tube, the straight-side inner partition tube and the flow-around tube.
As a further aspect of the present invention: and a gap between the equipment cylinder body and the conical inner partition cylinder and a straight-edge inner partition cylinder separates a cyclone air flotation space from a gravity settling space through coalescent filler.
The utility model has the advantages that: the cyclone flotation separator with the demulsification and coalescence functions is reasonable in design, and the inner partition cylinder is in a two-section combined type, so that the uniform distribution of flow velocity is facilitated. The inner partition cylinder and the equipment cylinder body separate a cyclone air flotation area from a sedimentation separation area, and can prevent oil-water back mixing or the sedimentation process from being disturbed and damaged. The inner partition cylinder and the flow surrounding pipe are connected with electrodes to form a demulsification electric field, demulsifying agents can be prevented from being used through electric field demulsification, and the operation cost and the operation difficulty of the cyclone floating equipment are reduced; the coalescence filler is arranged between the inner separating cylinder and the equipment cylinder body, and can coalesce the tiny oil drops which can not be separated by the cyclone air flotation into large oil drops for separation. The separated oil phase is discharged through an oil discharge port, and the gas phase formed by dissolved gas is discharged through an exhaust port. The higher solid impurity of density collects the equipment bottom, discharges through the drain, and the equipment bottom sets up the impingement baffle, avoids solid impurity settling process to receive the vortex influence. The aqueous phase is discharged from the water outlet. The equipment integration level is high, and area is little, and the separation precision is high, and operation and maintenance cost are low, have improved the separation precision through the coalescence packing, and the play water oil content is low and is favorable to environmental protection and water resource cyclic utilization, and the oil mass of recovery increases simultaneously and brings higher economic repayment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the device comprises a water inlet pipe, an air inlet pipe, a jet device, a conical inner partition cylinder, a flow surrounding pipe, a straight-edge inner partition cylinder, a coalescent filler, 8, an oil outlet, 9, an exhaust port, 10, a water outlet, 11, a sewage discharge port, 12, an anti-impact plate, 13, an equipment cylinder body, 14, an upper end enclosure, 15, a lower end enclosure, 16 and an electrode interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a cyclone separator with demulsification and coalescence functions includes a device cylinder 13; an upper end enclosure 14 is arranged above the equipment cylinder 13, a lower end enclosure 15 is arranged below the equipment cylinder 13, the equipment cylinder 13 is externally connected with an ejector 3 as a liquid inlet, and the ejector 3 is respectively connected with a water inlet pipe 1 and an air inlet pipe 2, an oil outlet 8 and an air outlet 9 are arranged at the opening of the upper end enclosure 14, a sewage outlet 11 is arranged at the opening of the lower end enclosure 15, a water outlet 10 and an electrode interface 16 are arranged at the opening of the equipment cylinder 13, an inner partition cylinder consisting of a conical inner partition cylinder 4 and a straight-edge inner partition cylinder 6 is arranged inside the equipment cylinder body 13, the conical inner partition cylinder 4 is arranged below the straight-side inner partition cylinder 6, a gap between the straight-side inner partition cylinder 6 and the inner wall of the equipment cylinder 13 is filled with a coalescent filler 7, and a flow-around pipe 5 penetrates through the conical inner partition cylinder 4 and the straight-edge inner partition cylinder 6, and the bottom end of the flow-around pipe 5 is provided with a baffle 12.
Further, in the embodiment of the utility model provides an in, ejector 3 adopts venturi as feed liquor gas dissolving device, and the air supply of gas dissolving can be nitrogen gas, air, natural gas etc..
Further, in the embodiment of the present invention, the diameter of the impingement plate 12 is 0.1 to 0.7 times of the diameter of the device cylinder 13.
Further, in the embodiment of the present invention, the diameter of the bypass pipe 5 is 0.1 to 0.5 times of the diameter of the inner partition 6 of the straight edge, the height of the bypass pipe 5 exceeds the upper edge of the inner partition 6 of the straight edge, and the length of the bypass pipe 5 is 0.1 to 0.5 times of the diameter of the equipment cylinder 13.
Further, in the embodiment of the present invention, the bevel angle of the cone inner partition 4 is between 30 degrees and 80 degrees.
Further, in the embodiment of the present invention, the diameter of the inner partition cylinder 6 of the straight edge is 0.2 to 0.9 times of the diameter of the cylinder body 13 of the device.
Further, in the embodiment of the present invention, the coalescence packing 7 is made of metal or polyester, and has a precision of 3 to 100 microns and a thickness of 10 to 200 mm.
Further, in the embodiment of the utility model provides an in, upper cover 14 adopts flange joint or welded connected mode to be connected with equipment barrel 13 according to the equipment diameter is different, and when adopting welded mode to connect, sets up the manhole on equipment barrel 13 and supplies to overhaul and install and use.
Further, in the embodiment of the present invention, two electrodes of the electrode interface 16 are connected to the inner partition tube 4 of the cone-shaped device through the cable respectively through the bypass tube 5 and the inner partition tube 6 of the straight edge, and a demulsification electric field is formed between the inner partition tube 4 of the cone-shaped device, the bypass tube 5 and the inner partition tube 6 of the straight edge. According to the material properties and the treatment capacity under different treatment working conditions, the electric field can be a high-frequency high-voltage alternating current electric field, a pulse direct current electric field and the like.
Further, in the embodiment of the utility model provides an in, the space between the interior cartridge 4 of cartridge and the straight flange 6 in equipment barrel 13 and the toper is separated whirl air supporting space and gravity settling space through coalescence filler 7, reduces back mixing and the disturbance of torrent to gravity settling.
The working principle is as follows: when the cyclone floatation separator with the demulsification and coalescence functions is used, the oil-water mixture and gas are mixed in the ejector 3, and the gas is dissolved in water to form gas-dissolved water. After the dissolved gas water enters the equipment, the cyclone motion is carried out along the conical inner partition cylinder 4. Compared with the bubbling device arranged in the equipment, the gas dissolved water forms bubbles with smaller and uniform particle size, the bubbles are adhered with oil drops to form an oil-gas compound with lower density, and the density difference between an oil phase and a water phase is increased, thereby being beneficial to cyclone centrifugal separation. The two sections of combined inner partition cylinders are connected with the flow surrounding pipe 5 through cables and the electrode interface 16 to form a demulsification electric field, and energy for breaking an emulsified state is provided by an external electric field to break the balance of an oil-water phase interface, so that demulsification is realized. The demulsifier is not needed to be added, the manual links such as medicament purchase, medicament addition regulation and control and the like are saved, the operation cost is low, and the automation degree is high. The water phase with higher density collects towards the outer side of the inner partition cylinder in the rising process, and the oil phase with lower density collects towards the central flow-around pipe 5 of the equipment. The kinetic energy of the oil-water mixture is high when the oil-water mixture enters the equipment, the diameter of the bottom of the conical inner partition cylinder 4 is large, the flowing space is large, the flow velocity is reduced to the optimal separation velocity, the kinetic energy is converted into potential energy along with the upward movement of the fluid against the gravity, and the space above the conical inner partition cylinder 4 is gradually reduced in order to keep the flow velocity not to be reduced. The conical inner partition 4 enables the fluid to maintain the optimal separation speed for a long time, and does not reduce the separation efficiency due to too low flow speed or break up liquid drops due to shearing force caused by too high flow speed. After the liquid enters the straight-side inner partition cylinder, the flow velocity is gradually reduced, and the disturbance influence on the subsequent gravity settling separation process is weakened. The separated oil phase collects in the upper part of the equipment and leaves the equipment through an oil outlet. The gas phase collects at the top of the apparatus and is discharged through the vent. The water phase passes through the coalescence filler 7 and is collected to a gap between the inner partition cylinder and the equipment cylinder, when the water phase flows through the coalescence filler, carried oil drops with the particle size of 3 microns or more are intercepted by the coalescence filler to form large oil drops, and the large oil drops float upwards to realize oil-water separation. The clean water phase is discharged from the device through the device water outlet. High-density solid impurities contained in the oil-water mixture settle to the bottom of the equipment and are discharged out of the equipment through a sewage discharge outlet.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A cyclone flotation separator with demulsification and coalescence functions comprises an equipment cylinder (13); the method is characterized in that: an upper seal head (14) is arranged above the equipment barrel body (13), a lower seal head (15) is arranged below the equipment barrel body (13), the equipment barrel body (13) is externally connected with an ejector (3) as a liquid inlet, the ejector (3) is respectively connected with a water inlet pipe (1) and a gas inlet pipe (2), an oil outlet (8) and a gas outlet (9) are installed at the opening of the upper seal head (14), a sewage outlet (11) is installed at the opening of the lower seal head (15), a water outlet (10) and an electrode interface (16) are installed at the opening of the equipment barrel body (13), an inner partition barrel composed of a conical inner partition barrel (4) and a straight-edge inner partition barrel (6) is arranged inside the equipment barrel body (13), the conical inner partition barrel (4) is installed below the straight-edge inner partition barrel (6), and a coalescence filler (7) is filled in a gap between the straight-edge inner partition barrel (6) and the inner wall of the equipment barrel body (, and a flow-around pipe (5) penetrates through the conical inner partition cylinder (4) and the straight-edge inner partition cylinder (6), and the bottom end of the flow-around pipe (5) is provided with an anti-impact plate (12).
2. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: the ejector (3) adopts a Venturi tube as a liquid and gas inlet device.
3. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: the diameter of the impingement plate (12) is 0.1 to 0.7 times of the diameter of the equipment cylinder (13).
4. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: the diameter of the flow-around pipe (5) is 0.1-0.5 times of the diameter of the straight-side inner partition cylinder (6), the height of the flow-around pipe (5) exceeds the upper edge of the straight-side inner partition cylinder (6), and the length of the flow-around pipe (5) is 0.1-0.5 times of the diameter of the equipment cylinder body (13).
5. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: the bevel angle of the conical inner partition cylinder (4) is between 30 and 80 degrees.
6. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: the diameter of the straight-side inner partition cylinder (6) is 0.2 to 0.9 times of the diameter of the equipment cylinder body (13).
7. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: the coalescence filler (7) is made of metal or polyester, the precision is 3-100 microns, and the thickness is 10-200 mm.
8. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: the upper end enclosure (14) is connected with the equipment cylinder body (13) in a flange connection or welding connection mode according to different diameters of the equipment, and a manhole is arranged on the equipment cylinder body (13) for overhauling, installing and using when the upper end enclosure is connected in a welding mode.
9. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: two electrodes of the electrode interface (16) are respectively connected with a flow-around pipe (5) and a straight-side inner partition cylinder (6) of the conical inner partition cylinder (4) of the equipment through cables, and emulsion breaking electric fields are formed among the conical inner partition cylinder (4), the flow-around pipe (5) and the straight-side inner partition cylinder (6).
10. The cyclone separator with demulsification and coalescence functions as claimed in claim 1, wherein: and a gap between the equipment cylinder body (13) and the conical inner separation cylinder (4) and the straight-edge inner separation cylinder (6) separates a cyclone air flotation space from a gravity settling space through a coalescent filler (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940026.1U CN213416586U (en) | 2020-09-08 | 2020-09-08 | Cyclone floating separator with demulsification and coalescence functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021940026.1U CN213416586U (en) | 2020-09-08 | 2020-09-08 | Cyclone floating separator with demulsification and coalescence functions |
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| Publication Number | Publication Date |
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| CN213416586U true CN213416586U (en) | 2021-06-11 |
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| CN202021940026.1U Expired - Fee Related CN213416586U (en) | 2020-09-08 | 2020-09-08 | Cyclone floating separator with demulsification and coalescence functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2020
- 2020-09-08 CN CN202021940026.1U patent/CN213416586U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Granted publication date: 20210611 |