CN104591325B - A kind of oilfield sewage treatment device and sewage water treatment method - Google Patents
A kind of oilfield sewage treatment device and sewage water treatment method Download PDFInfo
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- CN104591325B CN104591325B CN201510045974.6A CN201510045974A CN104591325B CN 104591325 B CN104591325 B CN 104591325B CN 201510045974 A CN201510045974 A CN 201510045974A CN 104591325 B CN104591325 B CN 104591325B
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Abstract
A kind of oil-contained waste water treatment device, comprises sump pump, flashing tower, compressor, interchanger, throttling valve, vacuum pump, concentrated sewage lagoon and clean water basin composition, and described sump pump is used for oily(waste)water suction flashing tower; Spray thrower, orifice plate device and condenser it is disposed with from top to bottom in described flashing tower, described spray thrower arranges spray header, sewage for being pumped by sump pump sprays in described flashing tower, described condenser is for becoming water of condensation by flash distillation vapor condensation, and described orifice plate device is for being discharged to clean water basin by water of condensation; Vacuum pump is used for extracting noncondensable gas in tower from tower top vacuum orifice.
Description
Technical field
The present invention relates to a kind of water treatment method, especially relate to a kind of oil-contaminated water of oil field treatment process.
Background technology
Also need to injecting a large amount of water and steam from stratum extraction many local waters, particularly oilfield exploitation to the middle and later periods in order to improve output while oil (gas) well is exploited, make crude oil water content increase, sewage generation increases. Oil field is driven in the sewage of extraction containing a large amount of polymkeric substance, alkali, tensio-active agent and oil, has viscosity height, pH value height, feature that emulsifying stability is good, and process difficulty is very big, it is necessary to could re-injection after it being processed.
At present, known profit purification techniques has: chemical method, microbial method, physics method etc. The flow process of chemical method is dosing flocculation filtration, is characterized in: chemical reagent is extensive, dispensing is convenient, simple to operate; Shortcoming is that the oil after easily causing secondary pollution, flocculation separation not easily reclaims and cost height. The feature of microbial method is: utilizes bacterial classification to engulf oil-in-water, is characterized in environmental protection; Its deficiency is: bacterium colony population easily degenerate and make a variation, to environmental requirement height. Physics method is divided into again centrifuging, vortex method, settling process etc.; The feature of centrifuging is: large granular impurity clearance rate is higher, and its deficiency is: the clearance rate of oil is lower. Effect and the centrifuging of vortex method are suitable. The feature of settling process is: technique is simple, easy to operate, and its deficiency is: need bigger container and longer time, and effect is not good.
The present invention provides a kind of oil-contained waste water treatment device, arranges contaminate environment and overcome the defect that existing oilfield sewage substitutes the existence of clear water technology outside solving oilfield sewage.
Summary of the invention
As an aspect of the present invention, it provides a kind of oil-contained waste water treatment device, comprising sump pump, flashing tower, compressor, interchanger, throttling valve, vacuum pump, concentrated sewage lagoon and clean water basin composition, described sump pump is used for oily(waste)water suction flashing tower; Spray thrower, orifice plate device and condenser it is disposed with from top to bottom in described flashing tower, described spray thrower arranges spray header, sewage for being pumped by sump pump sprays in described flashing tower, described condenser is for becoming water of condensation by flash distillation vapor condensation, and described orifice plate device is for being discharged to clean water basin by water of condensation; Vacuum pump is used for extracting noncondensable gas in tower from tower top vacuum orifice; Compressor is for being compressed into high temperature and high pressure gas by the working medium in condenser; Interchanger is used for high temperature and high pressure gas cooling is become cryogenic high pressure liquid, then through throttling valve pressure regulation, then in the interchanger led in flashing tower; Described concentrated sewage lagoon is for collecting the sewage of non-flash distillation.
Preferably, described orifice plate device comprises end face, bottom surface and the side between upper end face and bottom surface; Described upper end face is circular, is provided with for by the through hole of flash vapors in it; Described bottom surface is annular, and described annular interior diameter is greater than described round diameter, forms water of condensation runner between described bottom surface and flashing tower wall; Described side connects described arc of circle limit and described annular internal diameter, and described side becomes to be greater than the special angle of zero with horizontal plane.
Preferably, described special angle is about 45 degree.
Preferably, described condenser is the ring structure of hollow, and the size of its interior diameter equals the size of the circular diameter of end face on described orifice plate device.
Preferably, the mouth spray of described spray thrower is that upwards oily(waste)water is drenched in spray.
Preferably, described spray thrower is ring structure.
Preferably, oily(waste)water is drenched in the spray of direction, the described spray header oblique flashing tower center of circle.
Preferably, the vertical section of described condenser is trapezoidal, and the described trapezoidal length from the parallel limit close to condenser center is less than the length from the parallel limit away from condenser center.
As another aspect of the present invention, provide the sewage water treatment method of above-mentioned oil-contained waste water treatment device, comprise the steps: that oilfield sewage imports in flashing tower through sump pump, sewage is entered by fluid inlet, flash distillation is there is after spray thrower is upwards sprayed onto, the steam of evaporation upwards enters upper space by orifice plate device, and the water of condensation runner with gathering orifice plate device after condenser heat exchange condensation, is expelled to clean water basin from clear water output; The concentrated sewage of non-flash distillation gathers the concentrated sewage sedimentation chamber of non-flash of steam downwards, is expelled to concentrated sewage lagoon by concentrated sewage outlet, thus achieves the process of sewage clear water.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the oil-contained waste water treatment device of prior art.
Fig. 2 is the schematic diagram of the oil-contained waste water treatment device of the present invention.
Of the prior art 201010155198.2 propose the equipment of a kind of preparing clean water by using oil field sewage, see Fig. 1, flashing tower system is primarily of sump pump 1, flashing tower 2, compressor 14, interchanger 15, throttling valve 16, vacuum pump 13, concentrated sewage lagoon 11 and clean water basin 12 form, it is characterized in that flashing tower 2 is set to vertical type cylinder shape, it is provided with a condenser 6 at middle part on flashing tower, the middle part from upper cover of importing and exporting of condenser is stretched out, a round type orifice plate device 5 it is provided with on the middle top of flashing tower, circular ring type or row's formula spray thrower 4 it is provided with at the middle part of flashing tower, spray thrower is connected with fluid inlet 3, spray thrower bottom is set to the sedimentation chamber 9 of the concentrated sewage of non-flash of steam, a sewage outlet 10 it is provided with bottom flashing tower, in flashing tower upper cover bottom, all sides are provided with a vacuum orifice 7, it is provided with a clear water output 8 in all sides of orifice plate device, sump pump outlet is connected with fluid inlet, compressor inlet is connected with condensator outlet, and compressor outlet is connected with the import of condenser by interchanger, throttling valve, and vacuum pump import is connected with vacuum orifice, clear water output is connected with clean water basin, and concentrated sewage outlet is connected with concentrated sewage lagoon. but in this technical scheme, there is following defect: 1, orifice plate device is circular flat plate structure, and distilled water is easily detained, and affects effect, and orifice plate device flashed vapour is upwards flowed can produce hinder, 2, distiller is positioned on orifice plate device, and the distilled water of generation may drop onto sedimentation chamber by the hole of orifice plate device, affects the collection of distilled water, 3, spray thrower sprays pouring downwards, it is possible to directly spray pours sedimentation chamber, makes the flash distillation insufficient space of sewage, and spray thrower also affects the upwards transmission of flash gas.
Embodiments of the invention are the optimization to prior art, it is possible to overcome above-mentioned defect. See Fig. 2, oil-contained waste water treatment device provided by the invention, comprises sump pump 1, flashing tower 2, compressor 14, interchanger 15, throttling valve 16, vacuum pump 13, concentrated sewage lagoon 11 and clean water basin 13 and forms. Sump pump 1 is for by oily(waste)water suction flashing tower 2; Spray thrower 4, orifice plate device 5 and condenser 6 it is disposed with from top to bottom in flashing tower 2, spray thrower 4 arranges spray header, for the sewage that sump pump 1 is pumped being sprayed in flashing tower 2, condenser 6 is for becoming water of condensation by flash distillation vapor condensation, and orifice plate device 5 is for being discharged to clean water basin by water of condensation; Vacuum pump 13 is for extracting noncondensable gas in tower from tower top vacuum orifice; Compressor 14 is for being compressed into high temperature and high pressure gas by the working medium in condenser 6; Interchanger 15 becomes cryogenic high pressure liquid for being cooled by high temperature and high pressure gas, then through throttling valve 16 pressure regulation, then in the interchanger 6 led in flashing tower 2; Concentrated sewage lagoon 11 is for collecting the sewage of non-flash distillation.
Orifice plate device 5 comprises end face, bottom surface and the side between upper end face and bottom surface, and described upper end face is circular, is provided with for by the through hole of flash vapors in it; Described bottom surface is annular, and described annular interior diameter is greater than described round diameter, forms water of condensation runner between described bottom surface and flashing tower wall; Described side connects described arc of circle limit and described annular internal diameter, and described side becomes to be greater than the special angle of zero with horizontal plane, and this special angle can be set to about 45 degree. By the such setting to orifice plate device 5, water of condensation along the side flow of orifice plate device 5 to bottom, thus can improve the collecting effect of water of condensation.
Condenser 6 is set to the ring structure of hollow, and the size of its interior diameter equals the size of the circular diameter of end face on described orifice plate device. By to the such setting of condenser so that water of condensation falls downwards to the side of orifice plate device and bottom surface, can not drop onto sedimentation chamber by orifice plate device.
The mouth spray of spray thrower 4 is that upwards oily(waste)water is drenched in spray, such that it is able to improve the flash distillation space of oily(waste)water. Can also be ring structure by spray thrower 4, centre is set to the flow passage of flash vapors, and oily(waste)water is drenched in the spray of direction, the spray header oblique flashing tower center of circle, thus improves the flash distillation space of oily(waste)water on the one hand, on the other hand, it is possible to increase the space upwards flowed of flash vapors.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claims in the present invention.
Claims (2)
1. an oil-contained waste water treatment device, comprises sump pump, flashing tower, compressor, interchanger, throttling valve, vacuum pump, concentrated sewage lagoon and clean water basin composition, and described sump pump is used for oily(waste)water suction flashing tower; Spray thrower, orifice plate device and condenser it is disposed with from top to bottom in described flashing tower, described spray thrower arranges spray header, sewage for being pumped by sump pump sprays in described flashing tower, described condenser is for becoming water of condensation by flash distillation vapor condensation, and described orifice plate device is for being discharged to clean water basin by water of condensation; Vacuum pump is used for extracting noncondensable gas in tower from tower top vacuum orifice; Compressor is for being compressed into high temperature and high pressure gas by the working medium in condenser; Interchanger is used for high temperature and high pressure gas cooling is become cryogenic high pressure liquid, then through throttling valve pressure regulation, then in the interchanger led in flashing tower; Described concentrated sewage lagoon is for collecting the sewage of non-flash distillation, it is characterised in that: described orifice plate device comprises end face, bottom surface and the side between upper end face and bottom surface; Described upper end face is circular, is provided with for by the through hole of flash vapors in it; Described bottom surface is annular, and described annular interior diameter is greater than described round diameter, forms water of condensation runner between described bottom surface and flashing tower wall; Described side connects described arc of circle limit and described annular internal diameter, and described side becomes to be greater than the special angle of zero with horizontal plane, and described special angle is 45 degree; Described condenser is the ring structure of hollow, and the size of its interior diameter equals the size of the circular diameter of end face on described orifice plate device so that water of condensation falls downwards to the side of orifice plate device and bottom surface, can not drop onto sedimentation chamber by orifice plate device; The mouth spray of described spray thrower is that upwards oily(waste)water is drenched in spray; Described spray thrower is ring structure, and oily(waste)water is drenched in the spray of direction, the described spray header oblique flashing tower center of circle; The vertical section of described condenser is trapezoidal, and the described trapezoidal length from the parallel limit close to condenser center is less than the length from the parallel limit away from condenser center.
2. the sewage water treatment method of oil-contained waste water treatment device described in a claim 1, comprise the steps: that oilfield sewage imports in flashing tower through sump pump, sewage is entered by fluid inlet, flash distillation is there is after spray thrower is upwards sprayed onto, the steam of evaporation upwards enters upper space by orifice plate device, water of condensation runner with gathering orifice plate device after condenser heat exchange condensation, is expelled to clean water basin from clear water output; The concentrated sewage of non-flash distillation gathers the concentrated sewage sedimentation chamber of non-flash of steam downwards, is expelled to concentrated sewage lagoon by concentrated sewage outlet, thus achieves the process of sewage clear water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510045974.6A CN104591325B (en) | 2015-01-29 | 2015-01-29 | A kind of oilfield sewage treatment device and sewage water treatment method |
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| CN201510045974.6A CN104591325B (en) | 2015-01-29 | 2015-01-29 | A kind of oilfield sewage treatment device and sewage water treatment method |
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| CN104591325A CN104591325A (en) | 2015-05-06 |
| CN104591325B true CN104591325B (en) | 2016-06-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105481155A (en) * | 2015-11-11 | 2016-04-13 | 北京四海富通能源科技有限公司 | Processing equipment for oil-field produced water |
| CN109485191A (en) * | 2017-09-11 | 2019-03-19 | 安徽晓辰环保科技有限公司 | A kind of new and effective heavy-metal waste water treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10207460C1 (en) * | 2002-01-22 | 2003-06-05 | Lurgi Ag | Column for concentration of phthalic anhydride, with vertical wall dividing first stage for removing low-boiling material and second stage for separating high-boiling material, has connection between sumps of both stages |
| CN201040765Y (en) * | 2007-05-24 | 2008-03-26 | 汤素蝶 | Vacuum distillation furnace for crude zinc |
| CN101830529B (en) * | 2010-04-18 | 2012-05-09 | 胜利油田胜利勘察设计研究院有限公司 | Method for preparing clean water by using oil field sewage and for utilizing waste heat |
| CN203474491U (en) * | 2013-09-27 | 2014-03-12 | 大连金重鼎鑫科技有限公司 | Heat recycling device of high-temperature and high-pressure waste water |
| CN104295902A (en) * | 2014-09-29 | 2015-01-21 | 新疆敦华石油技术有限公司 | Environmentally-friendly recycling device for exhaust steam of gathering tank |
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Inventor after: Wang Chaozhang Inventor after: Liu Huan Inventor after: Li Bin Inventor after: Zhong Ka Inventor after: Luo Xiao Inventor after: Mu Jinliang Inventor after: Wei Lei Inventor after: Kang Chengjia Inventor after: Li Dongxiu Inventor after: Zhang Yuan Inventor before: Zhao Dongxu |
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Effective date of registration: 20160505 Address after: The tower of Mongolia Autonomous Prefecture of Korla City Road 841000 the Xinjiang Uygur Autonomous Region Bayinguoleng box No. 76 Applicant after: Wang Chaozhang Applicant after: Liu Huan Applicant after: Li Bin Applicant after: Zhong Ka Applicant after: Luo Xiao Applicant after: Mu Jinliang Applicant after: Wei Lei Applicant after: Kang Chengjia Applicant after: Li Dongxiu Applicant after: Zhang Yuan Address before: The road of Songshan Lake Science and Technology Industrial Park in Guangdong city of Dongguan Province, No. 2 523808 Applicant before: Zhao Dongxu |
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