Efficient physical method oily water treatment deviceTechnical field
The utility model relates to oily water treatment technical field, is specifically related to a kind of efficient physical method oily water treatment device.
Background technology
At present, China's oil-field water treatment facility relatively backwardness, substantially continue to use old treatment process, it is huge mostly to there is equipment in these treatment process, invests high, the state that processing efficiency is lower, has been difficult to the needs adapting to current field produces.Although each oil field is all at the new treatment technology of trial and treatment process, substantially under test, not yet obtain large-area promotion and application.How improving efficiency and the effect of oil-field water process, is the important topic that China oil field faces.Current China oil field mainly contains following several water treatment technological process:
1. gravity processing technological flow: the subject matter of existence is that the clearance of oil-in-water and suspended substance, removal efficiency are lower, the residence time, what have reached 48 hours, takies a large amount of soil generally at 24 hours, construction cost is very high, has been difficult to the needs adapting to field produces.
2. pressure treatment technical process: pressure treatment process residence time is generally at 1-4 hour, and the investment of phase force of gravity treatment process is little, takes up an area few, invests lower.The subject matter existed is that coalescing section hardens, tank inner swash plate layout is unreasonable, needs to add water purification agent, if water purification agent adds deficiency, not only cannot realize effective flocculation of suspended particulates, and the effect that inclined plate sedimentation is separated declines, long-term operation treatment effect is unstable.
3. gas flotation process: the subject matter of existence is that injector manufacturing technology level is low, reliever arranges improper and easy fouling and clogging, and adding of flotation agent is difficult to control, and affects pneumatically supported final effect.Need in treating processes to add a large amount of chemical processing agent, processing cost is higher, and produce in air-flotation process process a large amount of containing chemical substance be difficult to process scum silica frost, bring extremely serious pollution to environment.
4. filter: the subject matter of existence is that filtrate is seriously polluted, filter clogging, to scatter and disappear, backwash effect is poor, and filter material replacement not in time etc., has caused a large amount of filter tank out of service.
Utility model content
The purpose of this utility model is exactly the defect existed for prior art, there is provided a kind of structure simple, processing efficiency is high, the residence time is short, effect stability, floor space is little, it is low to invest, power consumption is low, and without the need to adding chemical assistant, there is no secondary pollution, the efficient physical method oily water treatment device of energy-conserving and environment-protective.
Its technical scheme is: efficient physical method oily water treatment device, comprise base, described base is provided with tank body and PLC control device, described tank body is connected to into water/back flushing water outlet pipeline, water outlet/back flushing back with water inlet line, aeration pipeline, delivery pipeline and blowdown pipeline, described water inlet/back flushing water outlet pipeline and water outlet/back flushing back with water inlet line are respectively equipped with topping-up pump and backwashing pump, and described water inlet/back flushing water outlet pipeline and water outlet/back flushing back with water inlet line are separately positioned on the two ends of tank body;
The filtering layer for being communicated with tank body two ends is provided with in the middle of described tank body, tank body is divided into oil-discharging cavity and the blowdown chamber that top and bottom have cavity by described filtering layer, the dividing plate vertical with filtering layer is also provided with in described tank body, the top of described filtering layer is provided with web plate, and the bottom being positioned at dividing plate side in described filtering layer is provided with oil resistance layer;
Described water inlet/back flushing water outlet pipeline, water outlet/back flushing back with water inlet line, aeration pipeline, delivery pipeline and blowdown pipeline are equipped with valve, and described valve, topping-up pump and backwashing pump are all electrically connected with PLC control device.
Described delivery pipeline is connected with the top of tank body, and described blowdown pipeline is connected with the bottom of tank body.
Filtering layer is divided into single filter layer and cascade filtration layer by described dividing plate, and described oil resistance layer is arranged on the bottom of cascade filtration layer, and the bottom surface of described oil resistance layer is concordant with the bottom surface of single filter layer.
Described valve comprises the pneumavalve and Hand-operated butterfly valve that are electrically connected with PLC control device.
Described tank body is provided with manhole and inspection window.
The utility model compared with prior art, has the following advantages: rational in infrastructure, and processing efficiency is high, and the residence time is short, effect stability, and floor space is little, it is low to invest, power consumption is low, and without the need to adding chemical assistant, do not have secondary pollution, energy-conserving and environment-protective.
Accompanying drawing explanation
Here further illustrates the utility model in conjunction with the accompanying drawings and embodiments.
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is vertical view of the present utility model;
In figure: 1. tank body; 2. base; 3. oil-discharging cavity; 4. blowdown chamber; 5. dividing plate; 6. web plate; 7. topping-up pump; 8. backwashing pump; 9.PLC control device; 10. pneumavalve; 11. Hand-operated butterfly valves; 12. manholes; 13. inspection windows; 14. water inlet/back flushing water outlet pipelines; 15. water outlets/back flushing back with water inlet line; 16. aeration pipelines; 17. delivery pipelines; 18. blowdown pipelines; 19. back flushing outlets; 20. water-ins; 21. water outlets; 22. back flushing water-ins; 23. oil discharge outlets; 24. inlet mouths; 25. sewage draining exits; 26. filtering layers; 27. oil resistance layers; 28. single filter layers; 29. cascade filtration layers.
Embodiment
See figures.1.and.2, efficient physical method oily water treatment device, comprises base 2, base 2 is provided with tank body 1 and PLC control device 9, and tank body 1 is stainless steel tank body.Tank body 1 is connected to into water/back flushing water outlet pipeline 14, water outlet/back flushing back with water inlet line 15, aeration pipeline 16, delivery pipeline 17 and blowdown pipeline 18, described water inlet/back flushing water outlet pipeline 14 and water outlet/back flushing back with water inlet line 15 are respectively equipped with topping-up pump 7 and backwashing pump 8, and water inlet/back flushing water outlet pipeline 14 and water outlet/back flushing back with water inlet line 15 are separately positioned on the two ends of tank body 1.Can realize back flushing like this, developing result is good.Wherein, water inlet/back flushing water outlet pipeline 14 is oily(waste)water back with water inlet line and back flushing water outlet pipeline is same pipeline; Equally, water outlet/back flushing back with water inlet line 15 is water outlet pipeline after oily water treatment and back flushing back with water inlet line is same pipeline.
Be provided with the filtering layer 26 for being communicated with tank body 1 two ends in the middle of the tank body 1, filtering layer 26 be innerly fill coarse material and special high-density resin, has long service life, does not harden, stronger to the size adaptability of oleaginousness of intaking.Tank body 1 is divided into oil-discharging cavity 3 and the blowdown chamber 4 that top and bottom have cavity by filtering layer 26, and wherein, delivery pipeline 17 is communicated with oil-discharging cavity 3, and blowdown pipeline 18 is connected with blowdown chamber 4.Namely delivery pipeline 17 is connected with the top of tank body 1, and blowdown pipeline 18 is connected with the bottom of tank body 1.The dirt of top fluid and bottom is convenient to discharge like this.
In tank body 1, be also provided with the dividing plate 5 vertical with filtering layer 26, the top of filtering layer 26 is provided with web plate 6, and the bottom being positioned at dividing plate 5 side in filtering layer 26 is provided with oil resistance layer 27.Wherein, filtering layer 26 is divided into single filter layer 28 and cascade filtration layer 29 by dividing plate 5, and oil resistance layer 27 is arranged on the bottom of cascade filtration layer 29, and the bottom surface of described oil resistance layer 27 is concordant with the bottom surface of single filter layer 28.
Water inlet/back flushing water outlet pipeline 14, water outlet/back flushing back with water inlet line 15, aeration pipeline 16, delivery pipeline 17 and blowdown pipeline 18 are equipped with valve, and described valve, topping-up pump 7 and backwashing pump 8 are all electrically connected with PLC control device 9.Controlled the turnover of each pipeline medium by PLC control device 9, wherein, valve comprises the pneumavalve 10 and Hand-operated butterfly valve 11 that are electrically connected with PLC control device 9.
Tank body 1 is provided with manhole 12 and inspection window 13.Be convenient to staff's inspection and maintenance.
During work, first oily(waste)water is by water-in 18, carries out supercharging by topping-up pump 7, flow through back with water inlet line 14 and enter stainless steel tank body 1, decompose oil droplet and oil resistance layer 27 carries out oil resistance through filtering layer 26, current after treatment, through water outlet/back flushing back with water inlet line 15, are discharged by water outlet 21.This is whole oily water treatment process.
When equipment runs for some time, the filtering material in tank has above some dirts are attached to unavoidably, and at this moment we can be cleaned equipment by the mode of back flushing.Clear water, by back flushing water-in 22, is given its supercharging by backwashing pump 8, is flowed through water outlet/back flushing back with water inlet line 15 and enter in tank.Simultaneously source of the gas flows to aeration pipeline 16 by inlet mouth 24 and enters in tank body 1, carries out aeration in tank.First open the valve on delivery pipeline 17, carry out oil extraction, oil is flowed through delivery pipeline 17 and is discharged by oil discharge outlet 23.When oil discharge outlet 23 does not have greasy dirt to discharge, at this moment close the valve on delivery pipeline 17, the valve opened on blowdown pipeline 18 carries out blowdown, and mud is got rid of by sewage draining exit 25.When sewage draining exit has clear water to flow out, close the valve on blowdown pipeline 18.The valve simultaneously opened on back flushing water outlet pipeline 14 carries out back flushing, and the water after back flushing is discharged by back flushing outlet 19.
The all processes of above technical process is all that PLC automatic control system 9 has been come by source of the gas control pneumavalve.In the technical process of back flushing, oil extraction, blowdown and back flushing can control the degree of back flushing with the time.Each step of system cloud gray model realizes automatically controlling, and can realize timing automatic back flushing, blowdown, oil extraction function; Control section adopts PLC module to control.
The utility model is not limited to above-mentioned embodiment, and in the ken that those skilled in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim, the content after change still belongs to protection domain of the present utility model.