CN103977601A - Drainage and oil interception device - Google Patents
Drainage and oil interception device Download PDFInfo
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- CN103977601A CN103977601A CN201410229742.1A CN201410229742A CN103977601A CN 103977601 A CN103977601 A CN 103977601A CN 201410229742 A CN201410229742 A CN 201410229742A CN 103977601 A CN103977601 A CN 103977601A
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Abstract
The invention relates to a drainage and oil interception device. The drainage and oil interception device comprises an elevation-type free water removal device, an oil collector and a free water collector which are respectively connected with the elevation-type free water removal device, two groups of oil containing monitoring devices and a water containing monitoring device, wherein the two groups of oil containing monitoring devices are respectively a first oil containing monitoring device and a second oil containing monitoring device; the first oil containing monitoring device is connected with an oil-water mixture inlet of the elevation-type free water removal device; the second oil containing monitoring device is connected with the free water collector; the water containing monitoring device is connected with the oil collector. The drainage and oil interception device realizes efficient separation of oil and water by using a simple and optimized structure, the separation, discharge and collection are effectively monitored, the separation precision is improved, the discharge standard and oil interception effect of oily sewage are fully improved, the safe reliability of operation is strengthened, and the device is suitable for being popularized and applied in related fields of oil-water separation.
Description
Technical field
The present invention relates to oily water separation technique field, relate in particular to a kind of draining oil-cutting device.
Background technology
At present, most of oil field oil recovery composite water cut is generally all very high, even reach more than 90%, high-moisture percentage not only brings series difficulty to field produces, for oil depot accumulating, also produce multiple impact, it is concrete if the energy consumption that reduces utilization rate of equipment and installations, increases intensification and course of conveying is, the equipment scaling of aggravation metal tubes and corrosion etc., therefore, in the moisture situation of height, to obtain constant rate of production, must improve oil water separator operating load, the efficient oil water separator of application, increases treating capacity, improves separative efficiency, cuts operating costs.
For removing of free water; mainly contain gravitational separation process, filtration method, centrifugal separation, floatation, biological oxidation process, chemical method, absorption method, coalescence, sound wave microwave method etc.; wherein; gravitational separation process because its apparatus structure adopting is simple, technology maturation and operating cost is low obtains extensive use on oil field, and the quadrant elevation type free water knockout (FWKO) that adopts gravitational separation process has obtained larger concern because of its efficient separating effect.This quadrant elevation type free water knockout (FWKO) has certain inclination angle, as shown in Figure 1, during application, liquid can flow from the outlet of trend water, in separator, be difficult for forming dead band, separated space is fully used, the large advantage of existing horizontal separator oil-water interfaces area has again the large feature of buoyance lift distance of vertical structure oil, and separative efficiency is higher.Particularly, application quadrant elevation type free water knockout (FWKO) process is: when oil-water mixture enters elevation angle separator, oil phase is gathered in epimere, water is at hypomere, above water, the upper wall surface of separator can form the oil phase tunic of continuous-flow, the oil droplet of follow-up rising during to wall can with oil film coalescence, realize water-oil separating; Owing to being provided with inclination angle, oil film continuous-flow under gravitational difference effect, surface is constantly updated, active material can not be in the accumulation of oil film surface, thereby reduced the impact on droplet coalescence, made drop easily coalescent, inclination angle can also make the sliding speed of tunic improve, thereby reduction thickness, drop Coalescence time is shortened, and then make oil droplet complete the flow upper limit increase of effective coalescence, the flow of permission increases, treating capacity also increases thereupon, but the precision of security and separation is lower.
From the device mode of action, the draining oil-cutting device of existing Oilfield using is divided into three kinds substantially: (1) installs oil water interface meter on vertical or horizontal separator, by draining time circle position, is changed and is controlled draining rhythm; (2) mounting limit analyzer of water content, when analyzer detects moisture content can free drainage when high, oil-water interfaces decline simultaneously, when water to oil area approaches or covers spacing analyzer of water content, oil content detected and surpass restriction, stop draining; (3) directly on separator drainage pipeline, analyzer of water content is installed, by moisture content, is detected the switch of monitoring to control draining valve with threshold value.Draining cuts oily effect and depends primarily on the oil-water separation of separator, the precision of analysis meter and response speed.In above-mentioned three kinds of modes, first kind of way separation is comparatively rough, and precision and reliability are low; The second way is safe and reliable, but inconvenience is installed, and drainage efficiency is low; The third mode security is lower, and separating effect is decided by precision and the reliability of separate unit analyzer of water content completely.
Therefore, urgently research and develop efficient and safe draining and cut oily equipment.
Summary of the invention
The object of the invention is, the problem existing for prior art, provides a kind of draining oil-cutting device, fully improves the efficiency of water-oil separating, strengthens security, significantly reduces the oil content of draining.
The technical scheme that the present invention deals with problems is: a kind of draining oil-cutting device, comprise quadrant elevation type free water knockout (FWKO) and the oil interceptor and the free water collector that are connected with described quadrant elevation type free water knockout (FWKO) respectively, described quadrant elevation type free water knockout (FWKO) is provided with oil water mixture entrance, oil export and free water outlet, described oil interceptor is connected with described oil export, and described free water collector is connected with described free water outlet; Wherein, also comprise oil-containing monitoring device and water cut monitor device, described oil-containing monitoring device has two groups, described two groups of oil-containing monitoring devices are respectively the first oil-containing monitoring device and the second oil-containing monitoring device, described the first oil-containing monitoring device is connected with the oil water mixture entrance of described quadrant elevation type free water knockout (FWKO), described the second oil-containing monitoring device is connected with described free water collector, and described water cut monitor device is connected with described oil interceptor.
Further, described oil interceptor and free water collector are oppositely arranged, and wherein, described oil interceptor is arranged on the top of described quadrant elevation type free water knockout (FWKO), and described free water collector is arranged on the below of described quadrant elevation type free water knockout (FWKO).Preferably, described oil interceptor is arranged on the upper surface of described quadrant elevation type free water knockout (FWKO); Described free water collector is arranged on the lower surface of described quadrant elevation type free water knockout (FWKO).
Further, draining oil-cutting device of the present invention also comprises controller, and described controller is connected respectively with water cut monitor device with described the first oil-containing monitoring device, the second oil-containing monitoring device.
Further, described the first oil-containing monitoring device comprises the first oil-containing analyzer and the first stop valve being connected, and described the first stop valve is connected with described oil water mixture entrance; Described the second oil-containing monitoring device comprises the second oil-containing analyzer and the second stop valve being connected, and described the second oil-containing analyzer is connected with described free water collector; Described water cut monitor device comprises analyzer of water content and the oil rig being connected, and it is inner that described analyzer of water content is arranged on described oil interceptor, and described oil rig is connected with described oil export.
Preferably, described draining oil-cutting device of the present invention also comprises controller, and described the first oil-containing analyzer is connected with described controller respectively with the first stop valve; Described the second oil-containing analyzer is connected with described controller respectively with the second stop valve; Described analyzer of water content is connected with described controller respectively with oil rig.
Preferably, the range of described the first oil-containing analyzer is greater than the range of described the second oil-containing analyzer.
Preferably, described analyzer of water content is capacitor type water-containing analyzer or radio frequency analyzer of water content.
Preferably, described the first oil-containing analyzer and the second oil-containing analyzer are oil-containing analyzer in infrared diffuse transmission type water.
Further, in the discharge ends of described free water collector or the free water exit of described quadrant elevation type free water knockout (FWKO), be provided with treatment facilities.
While applying draining oil-cutting device of the present invention, oil water mixture enters described quadrant elevation type free water knockout (FWKO) through oil water mixture entrance in the situation that of described the first oil-containing monitoring device monitoring, oil water mixture carries out water-oil separating in described quadrant elevation type free water knockout (FWKO), separating obtained free water enters described free water collector through free water outlet, then discharge under the second oil-containing monitoring device monitoring; Separating obtained oil enters described oil interceptor through oil export under the monitoring of described water cut monitor device.By application of the present invention, the separation of oil water mixture is all in monitoring from start to finish, fully improve separated precision and reliability, and also easy for installation, simple operation, has significantly improved separative efficiency, has also ensured the security of lock out operation.
Compared with prior art, the invention has the beneficial effects as follows: structural design is new reasonable, structure with simple optimizing realizes the efficient separation to profit, and effective monitoring of having carried out separation, discharge and having collected, when improving separation accuracy, fully improve the discharge standard of oil-polluted water and cut oily effect, also having strengthened the security reliability of operation, being suitable for applying in relevant water-oil separating field.
Accompanying drawing explanation
Fig. 1 is the action principle schematic diagram of quadrant elevation type free water knockout (FWKO) in background technology;
Fig. 2 is the structural representation of draining oil-cutting device of the present invention in embodiment 1;
Fig. 3 is the structural representation of draining oil-cutting device of the present invention in embodiment 2;
Fig. 4 is the structural representation of draining oil-cutting device of the present invention in embodiment 3.
Shown in figure: 1-quadrant elevation type free water knockout (FWKO); 2-oil interceptor; 3-free water collector; 4-water cut monitor device, 401-analyzer of water content; 5-the first oil-containing monitoring device, 501-the first oil-containing analyzer, 502-the first stop valve; 6-the second oil-containing monitoring device, 601-the second oil-containing analyzer, 602-the second stop valve; 7-treatment facilities.
The specific embodiment
Embodiment 1
As shown in Figure 2, a kind of draining oil-cutting device of the present invention, comprise quadrant elevation type free water knockout (FWKO) 1 and the oil interceptor 2 being connected with quadrant elevation type free water knockout (FWKO) 1 respectively and free water collector 3, quadrant elevation type free water knockout (FWKO) 1 is provided with oil water mixture entrance (not shown), oil export (not shown) and free water outlet (not shown), oil interceptor 2 is connected with described oil export, and free water collector 3 is connected with described free water outlet; Wherein, also comprise oil-containing monitoring device and water cut monitor device 4, described oil-containing monitoring device has two groups, described two groups of oil-containing monitoring devices are respectively the first oil-containing monitoring device 5 and the second oil-containing monitoring device 6, the first oil-containing monitoring device 5 is connected with the oil water mixture entrance of quadrant elevation type free water knockout (FWKO) 1, the second oil-containing monitoring device 6 is connected with free water collector 3, and water cut monitor device 4 is connected with oil interceptor 2.
In the above-described embodiments, for making separated and collecting and carry out more efficiently, described oil interceptor 2 and free water collector 3 are oppositely arranged, wherein, oil interceptor 2 is arranged on the top of quadrant elevation type free water knockout (FWKO) 1, and free water collector 3 is arranged on the below of quadrant elevation type free water knockout (FWKO) 1.Preferably, for structure setting is optimized more, reduce volume exclusion and spillage of material, oil interceptor 2 is arranged on the upper surface of quadrant elevation type free water knockout (FWKO) 1; Free water collector 3 is arranged on the lower surface of quadrant elevation type free water knockout (FWKO) 1.
In the above-described embodiments, for making the separation of draining oil-cutting device of the present invention more efficient, the relevant moisture monitoring of oil-containing is in time more, preferably set controller (not shown), described controller is connected respectively with water cut monitor device 4 with described the first oil-containing monitoring device 5, the second oil-containing monitoring device 6, thereby realize timely clear and definite monitoring information, and then control in time the separation of profit, the operation that oil is collected and water discharges.
As shown in Figure 2, while applying draining oil-cutting device of the present invention, oil water mixture in the devices such as settling tank in the situation that monitoring, the first oil-containing monitoring device 5 is entered to quadrant elevation type free water knockout (FWKO) 1 through oil water mixture entrance, oil water mixture carries out water-oil separating in quadrant elevation type free water knockout (FWKO) 1, separating obtained free water enters free water collector 3 through free water outlet, then discharges under the monitoring of the second oil-containing monitoring device 6; Separating obtained oil enters oil interceptor 2 through oil export under the monitoring of water cut monitor device 4.In above-mentioned application process, the total oil content rate by the first oil-containing monitoring device 5 at the oil water mixture portal monitoring feed liquor of quadrant elevation type free water knockout (FWKO) 1; The oil content of the free water discharging by the second oil-containing monitoring device 6 monitorings; By 4 monitorings of water cut monitor device, collect oily moisture content, thereby make the separation of oil water mixture all be in monitoring from start to finish, and then separated precision is protected, separated reliability and security are all guaranteed, and device itself is easy for installation, simple operation, generally, is fully enhanced separative efficiency.
Embodiment 2
As shown in Figure 3, a kind of draining oil-cutting device of the present invention, its basic structure arranges same embodiment 1, particularly: for improving better the separating effect of profit, the first oil-containing monitoring device 5 comprises that the first oil-containing analyzer 501 and the first stop valve 502, the first stop valves 502 that are connected are connected with described oil water mixture entrance; The second oil-containing monitoring device 6 comprises that the second oil-containing analyzer 601 and the second stop valve 602, the second oil-containing analyzers 601 that are connected are connected with free water collector 3; Water cut monitor device 4 comprises analyzer of water content 401 and the oil rig (not shown) being connected, and analyzer of water content 401 is arranged on the inside of oil interceptor 2, and described oil rig is connected with described oil export.
In the above-described embodiments, for the relevant moisture monitoring accuracy of oil-containing is utilized effectively, preferred mode is: set controller (not shown), the first oil-containing analyzer 501 is connected with described controller respectively with the first stop valve 502; The second oil-containing analyzer 601 is connected with described controller respectively with the second stop valve 602; Analyzer of water content 401 is connected with described controller respectively with described oil rig, thereby realize timely clear and definite monitoring information, control in time the separation of profit, the operation that oil is collected and water discharges, make the separation of draining oil-cutting device of the present invention remain efficient operation.In the above-described embodiments, described oil rig can be convenient to the device that oil is collected for draw-off pump etc.
In the above-described embodiments, according to the needs of actual separation, preferably, the range of the first oil-containing analyzer 501 is greater than the range of the second oil-containing analyzer 601, thereby makes to enter the mixture of quadrant elevation type free water knockout (FWKO) 1 and the oil content of the water of being discharged by quadrant elevation type free water knockout (FWKO) 1 is effectively monitored.For precision and the security reliability that ensures that further guarantee is separated, described the first oil-containing analyzer 501 and the second oil-containing analyzer 601 are preferably oil-containing analyzer in infrared diffuse transmission type water, make oil content accuracy in detection in water reach 1ppm; Described analyzer of water content 401 is preferably capacitor type water-containing analyzer or radio frequency analyzer of water content, makes Water in oil rate accuracy in detection reach 0.1vol%; Thereby for draining cuts oily effect, provide abundant assurance, and then improve crude oil intercept rate, correspondingly, increase economic efficiency and reduce environmental pollution.
As shown in Figure 3, while applying draining oil-cutting device of the present invention, basic application mode is with embodiment 1, particularly, in the separation process of oil water mixture, by the first oil-containing analyzer 501, measure the total oil content rate of the oil water mixture of carrying to quadrant elevation type free water knockout (FWKO) 1, according to surveyed oil content, whether surpass the opening and closing that the threshold value of carrying out normal separation oil-collecting draining is controlled at the first stop valve 502 that its rear end arranges, in the threshold range of surveyed oil content in normal separation, open the first stop valve 502, make oil water mixture enter quadrant elevation type free water knockout (FWKO) 1 and carry out separation, otherwise, close the first stop valve 502, before the water discharge of being collected by free water collector 3 after water-oil separating in quadrant elevation type free water knockout (FWKO) 1, by the second oil-containing analyzer 601, measure the oil content of wanting discharge water, when free water oil content meets discharge standard, control is open at the second stop valve 602 arranging thereafter and discharges, by analyzer of water content 4, detect the Water in oil rate that enters oil interceptor 2 upper ends, when moisture content is during lower than setting threshold, coordinate the oil rigs such as draw-off pump will separate out oil reservoir and extract out.For the cutoff threshold of setting in said process, according to concrete separated actual requirement, determine, if the cutoff threshold that arranges of common the first oil-containing analyzer 501 is 1～3vol%, the cutoff threshold that arranges of the second oil-containing analyzer 601 is set to 10～1000ppm; It is when the detected value of the first oil-containing analyzer 501 and the second oil-containing analyzer 601 is set cutoff threshold lower than it that overall operation is controlled, its separately the stop valve of rear end open, continue to inject or discharge; When cutoff threshold that detected value is set, close its stop valve that rear end arranges separately, stop injecting or discharge; For and analyzer of water content 401 be the value of surveyed moisture content while reaching collection standard, open the oil rigs such as draw-off pump and collect separating obtained oil.In a word, as shown in Figure 3, carrying out along with water-oil separating, in lower layer of water, oil content constantly declines, after standing enough time, according to the detection of analyzer of water content 401, extract and collect oil in oil interceptor 2, according to the detection of free water oil content in 601 pairs of free water collectors 3 of the second oil-containing analyzer, open the second stop valve 602 discharges, introduce oil water mixture simultaneously and proceed separation, and carry out switch according to the first stop valve 501 of the monitor value control oil water mixture porch of the first oil-containing analyzer 501; Circulation and so forth, fully guarantees drainage efficiency and cuts oily effect.
Embodiment 3
As shown in Figures 2 to 4, a kind of draining oil-cutting device of the present invention, its basic structure arranges and applies with embodiment 1 or embodiment 2, particularly, for further reducing the oil content removing in the free water of device bottom, the discharge that fully ensures separating obtained water does not cause secondary pollution to environment, in the discharge ends of free water collector 3, treatment facilities 7 is set, and by 7 pairs of separating obtained free waters for the treatment of facilities, carries out purification separation again.
In the above-described embodiments, according to actual needs, described treatment facilities 7 also can be arranged on the free water exit of quadrant elevation type free water knockout (FWKO) 1.
In the above-described embodiments, described treatment facilities 7 is preferably the device with absorption and/or filtering function, preferably, treatment facilities 7 is one or more the combination in the structures such as milipore filter, reverse osmosis membrane, activated carbon adsorption layer, polymeric adsorbent layer, aluminium polychloride flocbed, ferric trichloride flocbed, polyacrylamide flocbed, thereby realize filtration, flocculation, absorb emulsification, dissolving, dispersed oil in water, and then fully ensure environment protecting.
The invention is not restricted to above-mentioned embodiment, those skilled in the art make to any apparent improvement of above-mentioned embodiment or change, can not exceed the protection domain of design of the present invention and claims.
Claims (10)
1. a draining oil-cutting device, comprise quadrant elevation type free water knockout (FWKO) and the oil interceptor and the free water collector that are connected with described quadrant elevation type free water knockout (FWKO) respectively, described quadrant elevation type free water knockout (FWKO) is provided with oil water mixture entrance, oil export and free water outlet, described oil interceptor is connected with described oil export, described free water collector is connected with described free water outlet, it is characterized in that: also comprise oil-containing monitoring device and water cut monitor device, described oil-containing monitoring device has two groups, described two groups of oil-containing monitoring devices are respectively the first oil-containing monitoring device and the second oil-containing monitoring device, described the first oil-containing monitoring device is connected with the oil water mixture entrance of described quadrant elevation type free water knockout (FWKO), described the second oil-containing monitoring device is connected with described free water collector, described water cut monitor device is connected with described oil interceptor.
2. draining oil-cutting device according to claim 1, it is characterized in that: described oil interceptor and free water collector are oppositely arranged, wherein, described oil interceptor is arranged on the top of described quadrant elevation type free water knockout (FWKO), and described free water collector is arranged on the below of described quadrant elevation type free water knockout (FWKO).
3. draining oil-cutting device according to claim 2, is characterized in that: described oil interceptor is arranged on the upper surface of described quadrant elevation type free water knockout (FWKO);
Described free water collector is arranged on the lower surface of described quadrant elevation type free water knockout (FWKO).
4. draining oil-cutting device according to claim 1, is characterized in that: described draining oil-cutting device also comprises controller, and described controller is connected respectively with water cut monitor device with described the first oil-containing monitoring device, the second oil-containing monitoring device.
5. draining oil-cutting device according to claim 1, is characterized in that: described the first oil-containing monitoring device comprises the first oil-containing analyzer and the first stop valve being connected, and described the first stop valve is connected with described oil water mixture entrance;
Described the second oil-containing monitoring device comprises the second oil-containing analyzer and the second stop valve being connected, and described the second oil-containing analyzer is connected with described free water collector;
Described water cut monitor device comprises analyzer of water content and the oil rig being connected, and it is inner that described analyzer of water content is arranged on described oil interceptor, and described oil rig is connected with described oil export.
6. draining oil-cutting device according to claim 5, is characterized in that: described draining oil-cutting device also comprises controller, and described the first oil-containing analyzer is connected with described controller respectively with the first stop valve;
Described the second oil-containing analyzer is connected with described controller respectively with the second stop valve;
Described analyzer of water content is connected with described controller respectively with oil rig.
7. draining oil-cutting device according to claim 5, is characterized in that: the range of described the first oil-containing analyzer is greater than the range of described the second oil-containing analyzer.
8. draining oil-cutting device according to claim 5, is characterized in that: described analyzer of water content is capacitor type water-containing analyzer or radio frequency analyzer of water content.
9. draining oil-cutting device according to claim 5, is characterized in that: described the first oil-containing analyzer and the second oil-containing analyzer are oil-containing analyzer in infrared diffuse transmission type water.
10. according to the draining oil-cutting device described in any one in claim 1 to 9, it is characterized in that: in the discharge ends of described free water collector or the free water exit of described quadrant elevation type free water knockout (FWKO), be provided with treatment facilities.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229742.1A CN103977601A (en) | 2014-05-28 | 2014-05-28 | Drainage and oil interception device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410229742.1A CN103977601A (en) | 2014-05-28 | 2014-05-28 | Drainage and oil interception device |
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| CN103977601A true CN103977601A (en) | 2014-08-13 |
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| CN201410229742.1A Pending CN103977601A (en) | 2014-05-28 | 2014-05-28 | Drainage and oil interception device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108579127A (en) * | 2018-06-27 | 2018-09-28 | 林丽敏 | A kind of division box for production of resins |
| CN113652260A (en) * | 2020-05-12 | 2021-11-16 | 山东清沂山石化科技有限公司 | Novel oil product separation device and method |
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Application publication date: 20140813 |