CN202594823U - Radial flow type closed circulation air-floating oil removal tank - Google Patents
Radial flow type closed circulation air-floating oil removal tank Download PDFInfo
- Publication number
- CN202594823U CN202594823U CN 201220243030 CN201220243030U CN202594823U CN 202594823 U CN202594823 U CN 202594823U CN 201220243030 CN201220243030 CN 201220243030 CN 201220243030 U CN201220243030 U CN 201220243030U CN 202594823 U CN202594823 U CN 202594823U
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- Prior art keywords
- tank body
- gas
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- cavity
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 238000009826 distribution Methods 0.000 claims abstract description 17
- 239000010802 sludge Substances 0.000 claims abstract description 12
- 230000005587 bubbling Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 239000010724 circulating oil Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002893 slag Substances 0.000 abstract 2
- 238000005192 partition Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 25
- 239000007789 gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009300 dissolved air flotation Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000006124 Pilkington process Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A radial-flow closed circulation air-floating oil removal tank is applied to the treatment of oilfield produced water. The center of the tank body is provided with a center barrel, the center barrel is divided into an upper cavity and a lower cavity by a partition plate, the upper cavity is a water distribution cavity, the lower cavity is a water collection cavity, and the lower bottom of the water collection cavity is provided with a water collection cavity blow-off pipe; two pipelines are arranged in the water collecting cavity, wherein one pipeline is communicated with the overflow pipe and is communicated with the water outlet pipe through the overflow pipe. The other is communicated with a liquid inlet pipe of the gas-liquid multiphase pump; an oil receiving groove is arranged at the upper end of the tank body; a gas-liquid multiphase pump is arranged outside the tank body; the gas inlet pipe of the gas-liquid multiphase pump is communicated with the top of the tank body; an air communicating pipe is fixed at the top of the tank body; the bottom of the tank body is provided with an annular sludge discharge groove, and an annular perforated sludge collection pipe is connected with a sludge discharge pipe outside the tank body. The effect is as follows: the oil droplets, the suspended flocs and the micro bubbles are adhered and gradually float to the liquid level to form floating slag, the oil collecting tank collects and discharges the floating slag, the oil is extracted from the top of the oil removing tank, the water is pumped from the water collecting cavity, and the formed dissolved air water is released in the water distribution cavity.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and the container for storing liquid in particularly a kind of oil field produced water treatment is a kind of radial-flow sealing and circulating oil removal by air bubbling jar.
Background technology
In the oil field produced water treatment procedure, no matter adopt sedimentation process, air-float technology, micro-organism treatment process, removing oil tank all can be as earlier stage treatment process, and the height of its efficient directly has influence on the complexity and the effluent quality of subsequent treatment process.Remove oil tank and mainly utilize the oil removing of profit density difference, it is relevant with density, distribution character and the settling time of oil droplet that it removes efficient.After certain settling time, even prolong the settling time, processing efficiency does not have tangible rising yet.
At present, dissolved air flotation process is used for the oily water treatment field more, utilizes the characteristic of water different solubility under different pressures; Water to all or part of pending (or handling the back) pressurizes and aerating, increases the air dissolves amount of water, under the normal pressure situation, discharges then; Air is separated out the formation small bubbles; Stick on impurity wadding grain and the oil droplet, cause wadding grain, oil droplet global density to rise less than water, thereby make solid-liquid separation.The air-float technology processing efficiency is higher, but for oil field produced water treatment, especially the high salinity recovered water; Adopt the air air-float technology; Dissolved oxygen in the water is raise, and aggravation sewage is to the Corrosion of Metallic Materials effect, and traditional in addition air-float method can be with the toxic and harmful in the recovered water (like H
2S etc.) take out of, cause environmental pollution and operator's harm.Above reason has limited the use of air-float technology in oil field produced water treatment field.
The utility model content
The purpose of the utility model is: a kind of radial-flow sealing and circulating oil removal by air bubbling jar is provided.On oil removing process, introduce dissolved air flotation process, improve and remove the oil tank oil removal efficiency, source of the gas is removing the inner sealing and circulating that realizes of oil tank.
The technical scheme that the utility model adopts is: radial-flow sealing and circulating oil removal by air bubbling jar; Comprise cylinder bodily form tank body, tank body adopts the closed structure top that vacuum pressure valves is set, and it is characterized in that: tank diameter and aspect ratio are 1:1～1.2; The volume of tank body should guarantee the effective residence time 2～3h of sewage; There is central tube the center of tank body, and the central tube diameter is between 1.2～2.0m, and the central tube top is lower than tank skin vertex 2.0～2.5m.Central tube is divided into epicoele and cavity of resorption by dividing plate, and epicoele is a paring chamber.The paring chamber top is tubaeform.The paring chamber top is provided with the annular water distribution hole, annular water distribution hole perforated area 1.2～3m
2Be provided with into water hydraucone and the molten gas releasing tube of annular in the paring chamber cavity, the water inlet hydraucone is connected with water inlet pipe, and water inlet pipe passes center barrel and tank wall; Annular is dissolved the gas releasing tube and is connected gas-liquid multiphase pump drain pipe, and gas-liquid multiphase pump drain pipe passes center barrel and tank wall;
The central tube cavity of resorption is a collect cavity, and the collect cavity top exterior walls has gully-hole, and gully-hole is uniformly distributed with around lower chamber, and the gully-hole total area is at 0.2～0.8m
2Between.On the top of gully-hole and on the collect cavity outer wall, be provided with the umbrella shape baffle plate that catchments, the angle that umbrella shape is catchmented between baffle plate and the collect cavity outer wall is 45 °.Collect cavity is gone to the bottom and is cone surface shape, is provided with the collect cavity blow-off pipe on the collect cavity top of going to the bottom, and the collect cavity blow-off pipe passes center barrel and tank wall; Two pipelines are arranged in the collect cavity, and two pipelines pass center barrel and tank wall, and wherein pipeline is communicated with upflow tube and is connected with rising pipe through upflow tube, upflow tube top connection air communication pipe, and the air communication pipe communicates with the tank body top.Another pipeline is communicated with gas-liquid multiphase pump liquid-inlet pipe;
There is collection tank the tank body upper end, and collection tank communicates with collection tube, and collection tube passes tank body;
A gas-liquid multiphase pump is arranged outside tank body, and the outlet of gas-liquid multiphase pump connects drain pipe, on the drain pipe outlet line tensimeter is set; The drain pipe the other end dissolves the gas releasing tube with annular and links to each other, and the entrance end of gas-liquid multiphase pump liquid-inlet pipe is communicated with collect cavity, and gas-liquid multiphase pump liquid-inlet pipe absorbs water from collect cavity; On the gas-liquid multiphase pump liquid-inlet pipe under meter and vacuum pressure gauge are set; Gas-liquid multiphase pump inlet pipe is communicated with the tank body top, and gas-liquid multiphase pump inlet pipe is provided with air flowmeter.The gas-liquid multiphase pump inlet pipe the other end is communicated with gas-liquid multiphase pump liquid-inlet pipe;
Tank base is provided with annular mud drainage slot, and the xsect of annular mud drainage slot is the V font.The annular mud-collecting slot is provided with the annular perforations sludge pipe, and the annular perforations sludge pipe links to each other with the outer shore pipe of tank body.
The principle of work of summary radial-flow sealing and circulating oil removal by air bubbling jar.Establish central tube in the oil removal by air bubbling jar, central tube is divided into two chambers, and top is paring chamber; In establish former water water inlet hydraucone and molten gas releasing tube; Behind dissolved air water and the former water thorough mixing, go out from the annular water distribution orifice flow at paring chamber top, by in the jar mind-set jar week water distribution uniformity.Float to liquid level on oil droplet, suspension flco and microbubble adhere to progressively and form scum silica frost, scum silica frost to jar Zhou Yundong, is effluxed by the annular collection tank collection that is arranged on jar week under the promotion of water distribution current.Scum back liquid again by the circumferential center flow of jar, and the impurity in the flow process in the water can further precipitate removal, and final purification water is collected by collect cavity and flowed out outside the jar.The umbrella shape baffle plate that catchments is adopted at the collect cavity top, can change the direction of a stream of water the part, avoids suspended substance to be carried the entering collect cavity by current, establishes gully-hole behind the baffle plate that catchments, and is uniformly distributed with along cavity.Collect cavity effluent adopting overflow water outlet guarantees to remove the oil tank liquid level and fixes.The gas-liquid multiphase pump is located at except that oil tank outside, and is air-breathing from the oil removing tank top from the collect cavity imbibition, and outlet links to each other with molten gas releasing tube in the paring chamber, gets gas, dissolves gas and discharge all accomplishing except that in the oil tank, can not increase the dissolved oxygen in the water.Remove tank bottom and adopt annular mud drainage slot and annular perforations sludge pipe gravity spoil disposal.
The beneficial effect of the utility model: the utility model radial-flow sealing and circulating oil removal by air bubbling jar; Air-float technology and oil removing sedimentation process are integrated in one; Can effectively improve oil removal efficiency; Flotation gas realizes that jar internal recycle uses, and can not increase the dissolved oxygen in the water, also can outside jar, not discharge toxic and harmful.
Description of drawings
Fig. 1 is the utility model radial-flow sealing and circulating oil removal by air bubbling jar structure synoptic diagram.
Fig. 2 is a radial-flow sealing and circulating oil removal by air bubbling pot bottom spoil disposal synoptic diagram.
Among the figure, 1-tank body, 2-central tube, 3-upflow tube, 4-gas-liquid multiphase pump, 5-annular collection tank; 6-air communication pipe, the 7-water inlet pipe, the 8-rising pipe, 9-gas-liquid multiphase pump inlet pipe, 10-gas-liquid multiphase pump drain pipe, the 11-annular is dissolved the gas releasing tube; 12-gas-liquid multiphase pump liquid-inlet pipe, the 13-hydraucone of intaking, 14-annular water distribution hole, the 15-umbrella shape baffle plate that catchments, 16-gully-hole, 17-shore pipe; The 18-collection tube, 19-annular mud-collecting slot, 20-annular perforations sludge pipe, 21-collect cavity blow-off pipe, 22-dividing plate; The 23-vacuum pressure valves, 24-under meter, 25-air flowmeter, 26-vacuum pressure gauge, 27-tensimeter.
Embodiment
Embodiment 1: with a radial-flow sealing and circulating oil removal by air bubbling jar is example, and the utility model is done further explain.
Consult Fig. 1.The utility model radial-flow sealing and circulating oil removal by air bubbling jar comprises cylinder bodily form tank body 1, and tank body 1 adopts the closed structure top that vacuum pressure valves 23 is set.Tank body 1 diameter and aspect ratio are 1:1.2, and the design volume should guarantee the effective residence time 3h of sewage, and there is central tube 2 center of tank body 1, and central tube 2 diameters are 1.8m, and central tube 2 tops are lower than tank skin vertex 2.5m.Central tube 2 is divided into epicoele and cavity of resorption by dividing plate 22, and epicoele is a paring chamber, the height 2.5m of paring chamber.The paring chamber top is that top board is arranged at loudspeaker (circular cone) shape top, and tubaeform height 800mm, the angle of tubaeform wall and medullary ray are 45 °.The paring chamber top board is provided with annular water distribution hole 14, annular water distribution hole 14 perforated area 1.6m
2Be provided with a water inlet hydraucone 13 and the molten gas releasing tube 11 of annular in the paring chamber cavity, water inlet hydraucone 13 is connected with water inlet pipe 7, and water inlet pipe 7 passes and is welded on central tube 2 walls and tank body 1 wall; Annular is dissolved gas releasing tube 11 and is connected gas-liquid multiphase pump drain pipe 10, and gas-liquid multiphase pump drain pipe 10 passes and is welded on central tube 2 walls and tank body 1 wall; Annular is dissolved on the gas releasing tube 11 and is evenly distributed with fluid hole.
There is collection tank 5 tank body 1 upper end, and the collection tank top is lower than tank skin vertex 0.70m, and collection tank 5 communicates with collection tube 18, and collection tube 18 passes tank body 1 and is welded on tank body 1 wall.Collection tank 5 is a prior art with collection tube 18.
A gas-liquid multiphase pump 4 is arranged outside tank body 1, and 4 outlets of gas-liquid multiphase pump connect drain pipe 10, and tensimeter 27 is set on the drain pipe 10; Drain pipe 10 the other ends dissolve gas releasing tube 11 with annular and link to each other, and the entrance end of gas-liquid multiphase pump liquid-inlet pipe 12 is communicated with collect cavity, and gas-liquid multiphase pump liquid-inlet pipe 12 absorbs water from collect cavity; Under meter 24 and vacuum pressure gauge 26 are set on the gas-liquid multiphase pump liquid-inlet pipe 12; Gas-liquid multiphase pump inlet pipe 9 is communicated with tank body 1 top, and gas-liquid multiphase pump inlet pipe 9 is provided with air flowmeter 25.Gas-liquid multiphase pump inlet pipe 9 the other ends are communicated with gas-liquid multiphase pump liquid-inlet pipe 12.
Consult Fig. 2.Tank body 1 bottom is provided with annular mud drainage slot 19, and the xsect of annular mud drainage slot 19 is a V-arrangement, and the gradient equals 30 °.Annular mud-collecting slot 19 is provided with annular perforations sludge pipe 20, and annular perforations sludge pipe 20 links to each other with tank body 1 outer shore pipe 17.
During operation; Oily(waste)water gets into central tube 2 paring chambers by water inlet pipe 7, behind water inlet hydraucone 13 water distributions, moves upward, and dissolves 11 decompressions of gas releasing tube with annular and discharges a large amount of microbubble thorough mixing that produce; Flow out from the annular water distribution hole 14 at paring chamber top, by all uniform water distributions of mind-set jar in the jar.Float to liquid level on oil droplet, suspension flco and microbubble adhere to progressively and form scum silica frost, under the promotion of water distribution current,, efflux through collection tube 18 by being arranged on jar annular collection tank 5 collections all around to jar Zhou Yundong.Liquid after scumming is again by the circumferential collect cavity center flow of jar, gets into collect cavities through catchment baffle plate 15, gully-hole 16 of umbrella shape, and the impurity in the flow process in the water can further precipitate removal.Water after the purification flows out through upflow tube 3, rising pipe 8.The settled suspended substance in tank body 1 bottom, mud are collected by annular mud drainage slot 19, discharge through annular perforations sludge pipe 20, shore pipe 17 that bottom land is provided with.
Claims (1)
1. radial-flow sealing and circulating oil removal by air bubbling jar; Comprise cylinder bodily form tank body (1); Tank body (1) adopts the closed structure top that vacuum pressure valves (23) is set, and it is characterized in that: tank body (1) diameter and aspect ratio are 1:1～1.2, and there is central tube (2) center of tank body (1); Central tube (2) diameter is between 1.2～2.0m, and central tube (2) top is lower than tank skin vertex 2.0～2.5m; Central tube (2) is divided into epicoele and cavity of resorption by dividing plate (22), and epicoele is a paring chamber, and the paring chamber top is tubaeform, and the paring chamber top is provided with annular water distribution hole (14), annular water distribution hole (14) perforated area 1.2～3m2; Be provided with into water hydraucone (13) and the molten gas releasing tube (11) of annular in the paring chamber cavity, water inlet hydraucone (13) is connected with water inlet pipe (7), and water inlet pipe (7) passes central tube (2) wall and tank body (1) wall; Annular is dissolved gas releasing tube (11) and is connected gas-liquid multiphase pump drain pipe (10), and gas-liquid multiphase pump drain pipe (10) passes central tube (2) wall and tank body (1) wall;
Central tube (2) cavity of resorption is a collect cavity, and the collect cavity top exterior walls has gully-hole (16), and gully-hole (16) is uniformly distributed with around lower chamber, and gully-hole 16 total areas are between 0.2～0.8m2; On the top of gully-hole (16) and on the collect cavity outer wall, be provided with the umbrella shape baffle plate (15) that catchments, the angle that umbrella shape is catchmented between baffle plate 15 and the collect cavity outer wall is 45 °; Collect cavity is gone to the bottom and is cone surface shape, is provided with collect cavity blow-off pipe (21) on the collect cavity top of going to the bottom, and collect cavity blow-off pipe (21) passes central tube (2) wall and tank body (1) wall; Two pipelines are arranged in the collect cavity; Article two, pipeline passes central tube (2) wall and tank body (1) wall; Wherein a pipeline connection upflow tube (3) also is connected with rising pipe (8) through upflow tube (3), and upflow tube (3) top is communicated with air communication pipe (6), and air communication pipe (6) communicates with tank body (1) top; Another pipeline is communicated with gas-liquid multiphase pump liquid-inlet pipe (12);
There is collection tank (5) tank body (1) upper end, and collection tank (5) communicates with collection tube (18), and collection tube (18) passes tank body (1);
A gas-liquid multiphase pump (4) is arranged outside tank body (1), and gas-liquid multiphase pump (4) outlet connects drain pipe (10), on drain pipe (10) outlet line tensimeter (27) is set; Drain pipe (10) the other end dissolves gas releasing tube (11) with annular and links to each other, and the entrance end of gas-liquid multiphase pump liquid-inlet pipe (12) is communicated with collect cavity, and gas-liquid multiphase pump liquid-inlet pipe (12) absorbs water from collect cavity; Under meter (24) and vacuum pressure gauge (26) are set on the gas-liquid multiphase pump liquid-inlet pipe (12); Gas-liquid multiphase pump inlet pipe (9) is communicated with tank body (1) top, and gas-liquid multiphase pump inlet pipe (9) is provided with air flowmeter (25); Gas-liquid multiphase pump inlet pipe (9) the other end is communicated with gas-liquid multiphase pump liquid-inlet pipe (12);
Tank body (1) bottom is provided with annular mud drainage slot (19), and the xsect of annular mud drainage slot (19) is the V font; Annular mud-collecting slot (19) is provided with annular perforations sludge pipe (20), and annular perforations sludge pipe (20) links to each other with the outer shore pipe (17) of tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243030 CN202594823U (en) | 2012-05-28 | 2012-05-28 | Radial flow type closed circulation air-floating oil removal tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243030 CN202594823U (en) | 2012-05-28 | 2012-05-28 | Radial flow type closed circulation air-floating oil removal tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202594823U true CN202594823U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243030 Expired - Lifetime CN202594823U (en) | 2012-05-28 | 2012-05-28 | Radial flow type closed circulation air-floating oil removal tank |
Country Status (1)
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| CN (1) | CN202594823U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701320A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气股份有限公司 | Radial-flow type closed circulation air-floating oil removal tank and use method thereof |
| CN103990302A (en) * | 2014-04-28 | 2014-08-20 | 华南理工大学 | Radial flow sedimentation device |
| CN105883954A (en) * | 2016-04-28 | 2016-08-24 | 浙江永立环保工程有限公司 | Dissolved air flotation contact chamber |
| US11008227B2 (en) | 2019-07-29 | 2021-05-18 | Eco Water Technologies Corp | Wastewater purification system |
-
2012
- 2012-05-28 CN CN 201220243030 patent/CN202594823U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701320A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气股份有限公司 | Radial-flow type closed circulation air-floating oil removal tank and use method thereof |
| CN102701320B (en) * | 2012-05-28 | 2013-11-06 | 中国石油天然气股份有限公司 | Radial-flow type closed circulation air-floating oil removal tank and use method thereof |
| CN103990302A (en) * | 2014-04-28 | 2014-08-20 | 华南理工大学 | Radial flow sedimentation device |
| CN103990302B (en) * | 2014-04-28 | 2016-06-22 | 华南理工大学 | A kind of radial-flow type sedimentation device |
| CN105883954A (en) * | 2016-04-28 | 2016-08-24 | 浙江永立环保工程有限公司 | Dissolved air flotation contact chamber |
| US11008227B2 (en) | 2019-07-29 | 2021-05-18 | Eco Water Technologies Corp | Wastewater purification system |
| US11084737B1 (en) | 2019-07-29 | 2021-08-10 | Eco World Water Corp. | System for treating wastewater and the like |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20131106 |
|
| RGAV | Abandon patent right to avoid regrant |