CN1319873C - Oil field sewage treating equipment - Google Patents
Oil field sewage treating equipment Download PDFInfo
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- CN1319873C CN1319873C CNB200510042312XA CN200510042312A CN1319873C CN 1319873 C CN1319873 C CN 1319873C CN B200510042312X A CNB200510042312X A CN B200510042312XA CN 200510042312 A CN200510042312 A CN 200510042312A CN 1319873 C CN1319873 C CN 1319873C
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- flocculator
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Abstract
The present invention discloses an oil field sewage treating appliance which comprises an electric scale resisting apparatus, an electric flocculating apparatus, an electric gas floating apparatus, a fruit husk filter, a quartz filter and an electric sterilizer sequentially connected by a pipeline, wherein an opening of the upper part of the electric gas floating apparatus is provided with an oil scraper. The present invention has the advantages of simple operation and high automation level, and water treated by the oil field sewage treating appliance can not damage the ecological environment of stratum after the water is re-injected to the stratum. When re-injected water is exploited in the next period, additional burden can not be increased for the work of subsequent sewage treatment. Simultaneously, crude oil in oily sewage is recovered and utilized, wastes are changed into valuables, and the oil field sewage treating appliance is the environmental protection type oil field sewage treating appliance.
Description
Technical field
The present invention relates to technical field of sewage treatment equipment, relate in particular to a kind of sewage disposal device that is used to handle oilfield sewage.
Background technology
At present, the technological process of oil field sewage treating equipment is generally: dosing → sedimentation → filtration; Or dosing → air supporting → filtration.Characteristics easy and simple to handle, good reliability that above-mentioned technology has have also obtained better effects from practical application.But its weak point is: the water after a large amount of dosings are handled is eutrophication, the treating water of this eutrophication is recycled into the nutrition that becomes underground various bacterium and algae behind the stratum, not only make its quick breeding, can produce a large amount of meta-bolitess simultaneously, and impel it to morph.When this water when next cycle is exploited out, add to the difficulties and cost not only for the breaking emulsion and dewatering of crude oil, also be follow-up sewage disposal increase difficulty, greatly hindered the Sustainable development in oil field.
Summary of the invention
Technical problem to be solved by this invention is: a kind of oil field sewage treating equipment is provided, this equipment is not only simple to operate, and after being recycled into the stratum, the water of this device processes can the ecotope on stratum not damaged, when re-injection water when next cycle is exploited out, increase extra burden can not for follow-up sewage disposal work.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of oil field sewage treating equipment, be included in the crystal that can stop supersaturation in the oily(waste)water under the electric field action or newly separate out and be bonded to the electric scale inhibitor of dirt on wall, this electric scale inhibitor is connected with the discharge outlet pipeline of oily(waste)water; Comprise by electrolytic reaction making oily(waste)water form the electric flocculator of electroactive flocculation agent, this electricity flocculator is connected with described electric scale inhibitor pipeline; Comprise by electrolytic reaction making oily(waste)water on negative electrode and anode, separate out hydrogen and oxygen respectively that with its electric Air-float separator as crude oil flco in the carrier adhesion water and suspended solids come-up, this electricity Air-float separator is connected with described electric flocculator pipeline; Comprising can be with the strainer of suspended substance in the oily(waste)water or colloid elimination, and this strainer is connected with described electric floating organ pipe road; Be included in the electric sterilizer that the microorganism killing in the oily(waste)water can be removed under the effect of electric field, this electricity sterilizer is connected with described strainer pipeline.
Owing to adopted technique scheme, oily(waste)water is through behind the electric scale inhibitor, under effect of electric field, the association phenomenon of water molecules is cleared up, water molecules becomes one polar molecule, it can not only make because the supersaturation crystallite of newly separating out is not bonded to dirt on wall, but also can soak into infiltration to existing dirt layer, to incrustation scale produce sorption, bundle is poly-and make that it is loose gradually, strip off.The oily(waste)water of handling through electric scale inhibitor enters electric flocculator, can make oily(waste)water form electroactive flocculation agent by electrolytic reaction.The oily(waste)water of handling through electric flocculator enters electric Air-float separator, makes oily(waste)water separate out hydrogen and oxygen respectively on negative electrode and anode by electrolytic reaction, and these hydrogen and oxygen float as crude oil flco and the suspended solids that carrier will adhere in the water; The oily(waste)water of handling through electric Air-float separator enters strainer, with suspended substance in the oily(waste)water or colloid elimination; Enter electric sterilizer again through the filtering oily(waste)water of strainer, under effect of electric field, the microorganism killing in the oily(waste)water is removed, thereby form water purification, or discharging or utilization again.Because the present invention handles oily(waste)water by the method for physics, do not add any medicine, water after the processing can not damage the ecotope on stratum after being recycled into the stratum, when re-injection water when next cycle is exploited out, increase extra burden can not for follow-up sewage disposal work.
As a kind of improvement, the upper opening place of described electric Air-float separator is provided with oil-scraping device, and the crude oil that floats to its upper opening place in the device that electricity can be floated is like this recycled, and turns waste into wealth.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the logic diagram of the embodiment of the invention;
Fig. 2 is the structure sectional view of middle electric scale inhibitor embodiment illustrated in fig. 1;
Fig. 3 be embodiment illustrated in fig. 1 in the structure sectional view of electric flocculator;
Fig. 4 be embodiment illustrated in fig. 1 in the structure sectional view of electric Air-float separator;
Fig. 5 is a middle shell structure of filter synoptic diagram embodiment illustrated in fig. 1.
Embodiment
As shown in Figure 1, a kind of oil field sewage treating equipment comprises the electric scale inhibitor 1 of pipeline connection in the following order, electric flocculator 2, electric Air-float separator 3, shell strainer 4, Guartz filter 5 and electric sterilizer 6.As shown in Figure 2, described electric scale inhibitor 1 comprises antisludging equipment housing 12, its inner scale inhibition chamber 15 that forms, antisludging equipment housing 12 two ends are respectively equipped with antisludging equipment water-in 11 and the antisludging equipment water outlet 16 that is communicated with scale inhibition chamber 15, the positive and negative pole plate 13,14 of antisludging equipment is set in the scale inhibition chamber 15, and antisludging equipment water-in 11 is communicated with the water-in of oily(waste)water.On the positive and negative pole plate 13,14 of antisludging equipment, connect the high-voltage dc pulse voltage of 5kv～50kv.Its principle of work is: under effect of electric field, the association phenomenon of water molecules is cleared up, water molecules becomes one polar molecule, it can not only make because the crystallite that supersaturation is newly separated out is not bonded to dirt on wall, but also can soak into infiltration to existing dirt layer, to incrustation scale produce sorption, bundle is poly-and make that it is loose gradually, strip off, this effect that old dirt is got loose needs nearly 30 day time just can finish approximately.The scale inhibition of electric scale inhibitor is because water has changed the normal presence state of water molecules through electric field action, this is very unstable thermodynamic state, can keep its effective acting time about 7 days, can return to normal association state afterwards, when violent bubbling, stirring and turbulent flow, effective scale inhibition time of electric scale inhibitor can shorten.Electric scale inhibitor makes the wall surface no longer become dirt and keeps clean, thereby the corrosion of having prevented settling to cause realizes its preservative activity.Same principle electric scale inhibitor makes microorganism such as bacterium algae lose on the wall surface of not having dirt to perch the breeding place and realizes its antibacterial algae effect.
As shown in Figure 3, described electric flocculator 2 comprises flocculator housing 22, its inner flocculator settling tank 28 that forms electrolyzer 29 and be positioned at electrolyzer 29 bottoms, electrolyzer 29 lower sides are provided with flocculator water-in 26, be provided with flow instrument 26a and oil mass concentration analyzer 26b respectively at these flocculator water-in 26 places, electrolyzer 29 upper portion side wall are provided with flocculator water outlet 24, flocculator housing 22 inwalls are provided with flocculator isolator 23, the positive and negative pole plate 25a of flocculator, 25b are set in the electrolyzer 29, and flocculator settling tank 28 bottoms are provided with flocculator sewage draining exit 27.The positive and negative pole plate 25a of flocculator, 25b load 0.1v～60v volts DS, and its polarity switching time is 1 minute-10 hours.The principle of work of electricity flocculator is: when oily(waste)water passes through electrolyzer 29 from bottom to top, generate the multinuclear hydroxyl compound or the oxyhydroxide of capacitive in the metal anode electrolysis, the active group that this electricity takes place can connect with suspended substance (trickle oil droplet and mechanical impurity) " bridge formation " very effectively, congeal into bulk and quicken and separate, it is removed after can condensing colloidal suspended substance air supporting in the useless oily(waste)water as coagulating agent.It has easy control, the efficient and low advantage of cost, but simultaneously because the active lifetime of electroactive flocculation agent only several minutes, thus the residence time of sewage in flocculator generally have only two minutes, so the size of electric flocculator is less, processing speed is fast.Flow instrument 26a can measure flow velocity, oil mass concentration analyzer 26b can measure the oleaginousness in every premium on currency, according to these data, electricity flocculation Controlling System is controlled voltage swing on the positive and negative pole plate of electric flocculator automatically by singlechip controller, to reach best flocculating effect and energy-conservation purpose.Electricity flocculation Controlling System while and upper machine communication are to reach the function of centralized Control and online adjustment.
As shown in Figure 4, described electric Air-float separator 3 comprises the Air-float separator housing 32 of upper opening, its inner Air-float separator settling tank 38 that forms gas-floating chamber 39 and be positioned at gas-floating chamber 39 bottoms, gas-floating chamber 39 lower sides are provided with Air-float separator water-in 36, gas-floating chamber 39 upper portion side wall are provided with Air-float separator water outlet 34, Air-float separator housing 32 inwalls are provided with Air-float separator isolator 33, and the positive and negative pole plate 35a of Air-float separator, 35b are set in the gas-floating chamber 39, and Air-float separator settling tank 38 bottoms are provided with Air-float separator sewage draining exit 37.The upper opening place of described electric Air-float separator 3 is provided with oil-scraping device 30.The principle of work of electricity Air-float separator is: oily(waste)water is from bottom to top by gas-floating chamber 39, when the voltage that is added in the positive and negative pole plate 35a of Air-float separator, 35b reaches the decomposition voltage of water, separates out hydrogen and oxygen respectively on negative electrode and anode.Bubble size is very little, and the dispersity height adheres to the suspended solids in the water and floats as carrier, is easy to like this pollution substance is removed.Electrofloatation not only can be removed the hydrophobic contaminant in the oily(waste)water, and can remove the wetting ability pollutent.In addition, the upper opening place of electric Air-float separator is provided with oil-scraping device 30, like this can with on float to electricity come-up device upper opening place crude oil recycled, turn waste into wealth.
As shown in Figure 5, described shell strainer 4 comprises shell filter body 42, these housing 42 inner strainer settling tanks 41 that form filtration chamber 43 and be positioned at 43 bottoms, filtration chamber, 43 bottoms, filtration chamber are provided with strainer water-in 48, these water-in 48 places are provided with intake pump 47, the upper portion side wall of filtration chamber 43 is provided with strainer water outlet 45, and these water outlet 45 places are provided with the backwashing pump 46 of filtering medium in valve 44 and the filtration chamber capable of washing in parallel with this valve 44.Described shell strainer 4 is two covers, is parallel between electric Air-float separator 3 and the Guartz filter 5, and is provided with the electric control gear that can make this two covers shell strainer 4 realize alternately filtration and backwash.The effect of shell strainer 4 is: still remain in the suspended substance in the oily(waste)water after will handling through electric Air-float separator 3, eliminations such as colloid.Produce the slit that the part dirt can stop up the shell filtering medium during filtration, thereby its filter effect is reduced, must regularly carry out backwash, so two cover strainers are set, when a cover wherein during backwash, Controlling System automatically switches to another set of filtration, and two cover strainers alternately filter and backwash, reach the optimum filtration effect.
In order further to improve filter effect, Guartz filter 5 is set after shell strainer 4 again, its structure and shell strainer 4 are basic identical, and difference is that its filtering medium is a quartz sand, and it can more small suspended substance and the impurity of elimination.
Electricity sterilizer 6 is arranged on after the Guartz filter 5, and its structure and electric scale inhibitor 1 are basic identical.At the pulsed dc voltage of electric sterilizer positive/negative plate loading 3kv～80kv, the sewage that contains bacterium is subjected to the highfield effect, and pathogenic bacteria is oxidized, and oxidation products is removed after being reduced again.This system not only can be used for removing degerms, and also is used to remove bigger such as protozoic organism.Compare with sterilant, the sterilant sterilization is a biochemical process, and its effect is restricted by many environmental factorss, more because bacterium has resistance to most of sterilant, thereby can not guarantee sterilization effect.The electricity sterilizer is that the intravital water of container is carried out pure physical property sterilization, has not only kept the no microorganism dirt on wall surface, also can prevent the corrosion failure that microorganism is caused.
In sum, the present invention handles oily(waste)water by the method for physics, do not add any medicine, be recycled into when underground from the water of electric sterilizer discharging, can the ecotope on stratum not damaged, when re-injection water when next cycle is exploited out, increase extra burden can not for follow-up sewage disposal work, be a kind of environment-friendly type oil field sewage treating equipment.
Claims (8)
1, a kind of oil field sewage treating equipment, it is characterized in that: be included in the crystal that can stop supersaturation in the oily(waste)water under the electric field action or newly separate out is bonded to dirt on wall electric scale inhibitor (1), this electric scale inhibitor (1) is connected with the discharge outlet pipeline of oily(waste)water; Comprise by electrolytic reaction making oily(waste)water form the electric flocculator (2) of electroactive flocculation agent, this electricity flocculator (2) is connected with described electric scale inhibitor (1) pipeline; Comprising by electrolytic reaction makes oily(waste)water separate out hydrogen and oxygen respectively on negative electrode and anode, with its electric Air-float separator (3) as crude oil flco in the carrier adhesion water and suspended solids come-up, this electricity Air-float separator (3) is connected with described electric flocculator (2) pipeline; Comprising can be with the strainer of suspended substance in the oily(waste)water or colloid elimination, and this strainer is connected with described electric Air-float separator (3) pipeline; Be included in the electric sterilizer (6) that the microorganism killing in the oily(waste)water can be removed under the effect of electric field, this electricity sterilizer (6) is connected with described strainer pipeline.
2, a kind of oil field sewage treating equipment as claimed in claim 1, it is characterized in that: described strainer comprises that with shell be can carrying out the shell strainer (4) of coarse filtration and be the Guartz filter (5) that can carry out fine filtering to oily(waste)water of filtering medium with quartz sand oily(waste)water of filtering medium, described shell strainer (4) and electric Air-float separator (3) pipeline connection, described Guartz filter (5) and electric sterilizer (6) pipeline connection, shell strainer (4) and Guartz filter (5) pipeline connection.
3, oil field sewage treating equipment as claimed in claim 2 is characterized in that: described electric scale inhibitor (1) comprises antisludging equipment housing (12), its inner scale inhibition chamber (15) that forms; Antisludging equipment housing (12) two ends are respectively equipped with antisludging equipment water-in (11) and the antisludging equipment water outlet (16) that is communicated with scale inhibition chamber (15), and the positive and negative pole plate of antisludging equipment (13,14) is set in scale inhibition chamber (15).
4, oil field sewage treating equipment as claimed in claim 2, it is characterized in that: described electric flocculator (2) comprises flocculator housing (22), its inner flocculator settling tank (28) that forms electrolyzer (29) and be positioned at electrolyzer (29) bottom, electrolyzer (29) lower sides is provided with flocculator water-in (26), locate to be provided with respectively flow instrument (26a) and oil mass concentration analyzer (26b) at this flocculator water-in (26), electrolyzer (29) upper portion side wall is provided with flocculator water outlet (24), flocculator housing (22) inwall is provided with flocculator isolator (23), electrolyzer just is being provided with flocculator in (29), negative plate (25a, 25b), flocculator settling tank (28) bottom is provided with flocculator sewage draining exit (27).
5, oil field sewage treating equipment as claimed in claim 2, it is characterized in that: described electric Air-float separator (3) comprises the Air-float separator housing (32) of upper opening, its inner Air-float separator settling tank (38) that forms gas-floating chamber (39) and be positioned at gas-floating chamber (39) bottom, gas-floating chamber (39) lower sides is provided with Air-float separator water-in (36), gas-floating chamber (39) upper portion side wall is provided with Air-float separator water outlet (34), Air-float separator housing (32) inwall is provided with Air-float separator isolator (33), gas-floating chamber just is being provided with Air-float separator in (39), negative plate (35a, 35b), Air-float separator settling tank (38) bottom is provided with Air-float separator sewage draining exit (37).
6, oil field sewage treating equipment as claimed in claim 5 is characterized in that: the upper opening place of described electric Air-float separator (3) is provided with oil-scraping device (30).
7, oil field sewage treating equipment as claimed in claim 2, it is characterized in that: described shell strainer (4) comprises shell filter body (42), the inner strainer settling tank (41) that forms filtration chamber (43) and be positioned at bottom, filtration chamber (43) of this housing (42), bottom, filtration chamber (43) is provided with strainer water-in (48), this water-in (48) locates to be provided with intake pump (47), the upper portion side wall of filtration chamber (43) is provided with strainer water outlet (45), and this water outlet (45) locates to be provided with the backwashing pump (46) of filtering medium in valve (44) and the filtration chamber capable of washing in parallel with this valve (44).
8, oil field sewage treating equipment as claimed in claim 7, it is characterized in that: described shell strainer (4) is two covers, be parallel between electric Air-float separator (3) and the Guartz filter (5), and be provided with the electric control gear that can make this two cover shell strainer (4) realize alternately filtration and backwash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510042312XA CN1319873C (en) | 2005-01-08 | 2005-01-08 | Oil field sewage treating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510042312XA CN1319873C (en) | 2005-01-08 | 2005-01-08 | Oil field sewage treating equipment |
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| Publication Number | Publication Date |
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| CN1654350A CN1654350A (en) | 2005-08-17 |
| CN1319873C true CN1319873C (en) | 2007-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200510042312XA Expired - Fee Related CN1319873C (en) | 2005-01-08 | 2005-01-08 | Oil field sewage treating equipment |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101792199A (en) * | 2010-02-26 | 2010-08-04 | 厦门市威士邦膜科技有限公司 | Sewage treatment technique |
| CN101781001A (en) * | 2010-03-10 | 2010-07-21 | 合肥工业大学 | Method for processing effluent by two-stage electrolysis and device thereof |
| CN103523869A (en) * | 2012-07-06 | 2014-01-22 | 刘辉 | Rotary-drum high-voltage pulse electric flocculation device |
| CN103588333B (en) * | 2013-10-29 | 2014-12-10 | 中国地质大学（北京） | Oilfield fracturing wastewater treatment equipment |
| CN106865835B (en) * | 2015-12-10 | 2020-04-10 | 中国石油天然气股份有限公司 | Treatment method and device for shale gas fracturing flowback waste liquid |
| CN105948335A (en) * | 2016-07-03 | 2016-09-21 | 宁波市华锐环保科技有限公司 | Electromagnetic chemical treatment device for industrial circulating cooling water treatment |
| CN108033616A (en) * | 2017-11-24 | 2018-05-15 | 南京悠谷新材料科技有限公司 | Oil field wastewater treatment equipment |
| CN109782725A (en) * | 2019-02-27 | 2019-05-21 | 河北宏龙环保科技有限公司 | Sewage managing and control system based on monitoring water quality on line index |
| CN113636627A (en) * | 2021-10-14 | 2021-11-12 | 北京中关村国际环保产业促进中心有限公司 | Device and method for removing thallium pollution in wastewater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327954A (en) * | 2001-06-13 | 2001-12-26 | 欧天雄 | Process and technology for treating sewage in oil field |
| CN2486541Y (en) * | 2001-06-22 | 2002-04-17 | 河北中科环保有限公司 | 'Electric coagulation, electric air suspension' waste water processing equipment |
| CN2756626Y (en) * | 2005-01-08 | 2006-02-08 | 临朐正源电气有限公司 | Oil field waste water processing device |
-
2005
- 2005-01-08 CN CNB200510042312XA patent/CN1319873C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327954A (en) * | 2001-06-13 | 2001-12-26 | 欧天雄 | Process and technology for treating sewage in oil field |
| CN2486541Y (en) * | 2001-06-22 | 2002-04-17 | 河北中科环保有限公司 | 'Electric coagulation, electric air suspension' waste water processing equipment |
| CN2756626Y (en) * | 2005-01-08 | 2006-02-08 | 临朐正源电气有限公司 | Oil field waste water processing device |
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| CN1654350A (en) | 2005-08-17 |
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