CN203144205U - Pressure differential emulsion breaking device of oilfield sewage - Google Patents
Pressure differential emulsion breaking device of oilfield sewage Download PDFInfo
- Publication number
- CN203144205U CN203144205U CN 201320172211 CN201320172211U CN203144205U CN 203144205 U CN203144205 U CN 203144205U CN 201320172211 CN201320172211 CN 201320172211 CN 201320172211 U CN201320172211 U CN 201320172211U CN 203144205 U CN203144205 U CN 203144205U
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- China
- Prior art keywords
- pressure reduction
- emulsion
- breakdown
- emulsion jar
- jar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000839 emulsion Substances 0.000 title claims abstract description 69
- 239000010865 sewage Substances 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000002955 isolation Methods 0.000 claims abstract description 5
- 230000015556 catabolic process Effects 0.000 claims description 58
- 230000009467 reduction Effects 0.000 claims description 55
- 238000000926 separation method Methods 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 9
- 239000003921 oil Substances 0.000 abstract description 35
- 239000013043 chemical agent Substances 0.000 abstract description 4
- 239000000346 nonvolatile oil Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 14
- 238000004945 emulsification Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001311 chemical methods and process Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000007764 o/w emulsion Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012982 microporous membrane Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Abstract
The utility model relates to a pressure differential emulsion breaking device of oilfield sewage, relating to the technical field of treatment of oily sewage in oil fields; the pressure differential emulsion breaking device disclosed by the utility model comprises a fixed oil removing tank, a first-stage pressure differential emulsion breaking tank and a second-stage pressure differential emulsion breaking tank; two vertical clapboards are arranged at one side in the fixed oil removing tank; the fixed oil removing tank is divided into an oil-water separating cavity and a dewatering cavity; the oil-water separating cavity and the dewatering cavity are communicated; an isolation porous plate is arranged at the upper part of the oil-water separating cavity; the first-stage pressure differential emulsion breaking tank is connected with the dewatering hole of the dewatering cavity of the fixed oil removing tank; and the second-stage pressure differential emulsion breaking tank is connected with the dewatering hole of the first-stage pressure differential emulsion breaking tank through a pipeline. According to the utility model, in the event of not adding chemical agents, such as an emulsion breaker and the like, the oil removal rate of oily sewage treated by the device can be up to 90%, wherein the emulsion breaking oil removal rate of the first-stage pressure differential emulsion breaking tank is more than 70%; and the emulsion breaking oil removal rate of the second-stage pressure differential emulsion breaking tank is more than 20%.
Description
Technical field
The utility model relates to the oil-contaminated water of oil field processing technology field, is specially a kind of oilfield sewage pressure reduction breaking device.
Background technology
In the oil field extracted water because the multiple pollution substances such as oils, particulate matter, bacterium and chemical agent that wherein contain, need to handle and to reach waterflooding requirement, treatment process mainly contains physics method, chemical method, biological process at present, wherein physics is most widely used in disposing polluted water in oil with the complex method of chemistry, i.e. physico-chemical process.
Conventional physico-chemical process mainly is divided into oil removing, forms except corollary systems such as solid system and sterilization, anticorrosion, antiscale, blowdowns.From applicable cases, also there is following problem in this method: the one, and the oil in water emulsion in the oily(waste)water and dissolving oil, traditional physicochemical techniques is difficult to efficient removal; The 2nd, sludge quantity is big, mud oleaginousness height owing to the flocculation, the coagulant aids that add pbz polymer make, but does not still have ripe sewage sludge harmlessness technology at present.In recent years, the scientific research personnel has carried out more research to the physics breaking method of emulsion system, mainly contains:
Gravity method, centrifuging, electricity breakdown of emulsion method, ultrasonic dehydration method, film breakdown of emulsion method, microwave demulsifying method, water attack harmonic wave breakdown of emulsion method.Gravity method and centrifuging are two kinds of simple physics breaking methods, and under gravity and centrifugal action, because the density difference, oil phase rises, and water descends, drop generation polymerization, thus realized the separation of two-phase.Displacement effect, the heat effect that electricity breakdown of emulsion method utilizes electric current to produce waits to change the character of emulsion, make drop constantly bump, coalescent, separate; Have report to carry out breakdown of emulsion with ultrasonic wave in 20 end of the centurys, under the situation that adds emulsion splitter, dehydration rate reaches 99%.The film breakdown of emulsion refers to milk sap under pressure, thereby the coalescent method that oil, water two are separated takes place disperse phase during by microporous membrane.Microwave demulsifying mainly is the heat effect that utilizes microwave, and the emulsus oil liquid temperature is raise, and viscosity reduces, and the water droplets coalescence resistance reduces, and destroys the Zeta potential of water-oil interface, and collision is poly-also easily to make drop.Water attack harmonic wave breakdown of emulsion method mechanism is exactly to utilize the energy of internal system to carry out breakdown of emulsion, it is that the water hammer that produces from the breakdown of emulsion process is started with, form the water attack stationary field at specific pipeline section, in the water attack stationary field, utilize reactive force between the suffered buoyancy lift of drop, towing force, gravity and standing wave forced vibration power and disperse phase, drop produces collision and distortion, so that finally occur resilience, stablize coalescent, transient state is coalescent, thereupon the division or broken several situation.
Use from field practice, above method still has the following disadvantages:
Cause sludge quantity big owing to add medicaments such as flocculation; Owing to adopt the electrochemical treatment energy consumption too high; Because film surface particles thing contamination and plugging seriously causes the treatment effect instability, simultaneously comparatively the ubiquity contamination resistance relatively poor, receive problem such as oily difficulty.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of oilfield sewage pressure reduction breaking device is provided, do not power up under the condition not adding chemical agent, realize the online breakdown of emulsion of oil-in-water emulsion, and second emulsifying does not take place in isolated profit two-phase material, and isolated oil phase substance is recyclable.
The technical scheme that realizes above-mentioned purpose is: a kind of oilfield sewage pressure reduction breaking device, it is characterized in that: comprise and leaving standstill except oil tank, one-level pressure reduction breakdown of emulsion jar and secondary pressure reduction breakdown of emulsion jar, a described jar interior side that leaves standstill except oil tank is provided with two vertical partition plates, to leave standstill except oil tank and be divided into oily water separation chamber and drain chamber, the vertical partition plate of the vertical partition plate lower end of oily water separation chamber one side and drain chamber one side upper end is respectively arranged with breach and makes between oily water separation chamber and the drain chamber and be connected, be provided with the isolation orifice plate on the top in oily water separation chamber, isolate orifice plate top in the oily water separation chamber and be provided with oil outlet, be provided with water port in the bottom of drain chamber.
Described one-level pressure reduction breakdown of emulsion jar is connected with the water port that leaves standstill except the oil tank drain chamber with the lifting water pump by pipeline, and the top of one-level pressure reduction breakdown of emulsion jar is provided with oil outlet, and the bottom of one-level pressure reduction breakdown of emulsion jar is provided with water port; Described secondary pressure reduction breakdown of emulsion jar is connected by the water port of pipeline with one-level pressure reduction breakdown of emulsion jar, and the bottom of described secondary pressure reduction breakdown of emulsion jar is provided with water port; The inner chamber top of leaving standstill except oil tank, one-level pressure reduction breakdown of emulsion jar and secondary pressure reduction breakdown of emulsion jar is respectively arranged with hot water cyclesystem.
Optimally, the water port at the outlet, one-level pressure reduction breakdown of emulsion jar and the secondary pressure reduction breakdown of emulsion jar that promote water pump is respectively arranged with pressure test point and sewage thief hole.
Optimally, be respectively arranged with the polarity dope layer at the inwall that leaves standstill except oil tank, one-level pressure reduction breakdown of emulsion jar and secondary pressure reduction breakdown of emulsion jar.
The beneficial effects of the utility model:
1) do not adding under the condition of chemical agents such as emulsion splitter, oily(waste)water is through after this device processing, and oil removal rate can reach 90%, one-level pressure reduction breakdown of emulsion element breaking milk and removing oil rate＞70% wherein, secondary pressure reduction breakdown of emulsion element＞20%.
2) second emulsifying does not take place in isolated profit two-phase material.
3) isolated oil substances is recyclable.
Water port at the outlet, one-level pressure reduction breakdown of emulsion jar and the secondary pressure reduction breakdown of emulsion jar that promote water pump is respectively arranged with pressure test point and sewage thief hole, can well monitor and regulate the use state of device preferably.
The inwall that leaves standstill except oil tank, one-level pressure reduction breakdown of emulsion jar and secondary pressure reduction breakdown of emulsion jar is provided with the polarity dope layer.Have anti-corrosion anti-scale performance preferably, strong hydrophilicity or oleophylic performance that the while has owing to the polarity dope layer, thereby have certain resistance to crocking.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 be among Fig. 1 A-A to part sectioned view.
Embodiment
As shown in Figure 1, the utility model is mainly formed by leaving standstill except oil tank 1, one-level pressure reduction breakdown of emulsion jar 2 and secondary pressure reduction breakdown of emulsion jar 3.
A jar interior side that leaves standstill except oil tank 1 is provided with two vertical partition plates 4 and 5, to leave standstill except oil tank 1 and be divided into oily water separation chamber 6 and drain chamber 7, vertical partition plate 4 lower ends of oily water separation chamber 6 one sides and vertical partition plate 5 upper ends of drain chamber 7 one sides are respectively arranged with breach and make between oily water separation chamber and the drain chamber and be connected, be provided with isolation orifice plate 8 on the top in oily water separation chamber 6,6 isolation orifice plates, 8 tops are provided with oil outlet 9 in the oily water separation chamber, are provided with water port 10 in the bottom of drain chamber 7.
One-level pressure reduction breakdown of emulsion jar 2 is connected with the water port 10 that leaves standstill except oil tank 1 drain chamber 7 with lifting water pump 11 by pipeline, and the top of one-level pressure reduction breakdown of emulsion jar 2 is provided with oil outlet 12, and the bottom of one-level pressure reduction breakdown of emulsion jar 2 is provided with water port 13.
Secondary pressure reduction breakdown of emulsion jar 3 is connected by the water port 13 of pipeline with one-level pressure reduction breakdown of emulsion jar 2, and the bottom of secondary pressure reduction breakdown of emulsion jar 3 is provided with water port 14.
The inner chamber top of leaving standstill except oil tank 1, one-level pressure reduction breakdown of emulsion jar 2 and secondary pressure reduction breakdown of emulsion jar 3 is respectively arranged with hot water cyclesystem 15.
As shown in Figure 2, be respectively arranged with polarity dope layer 18 at the inwall that leaves standstill except oil tank 1, one-level pressure reduction breakdown of emulsion jar 2 and secondary pressure reduction breakdown of emulsion jar 3.
Claims (3)
1. oilfield sewage pressure reduction breaking device, it is characterized in that: comprise and leaving standstill except oil tank, one-level pressure reduction breakdown of emulsion jar and secondary pressure reduction breakdown of emulsion jar, a described jar interior side that leaves standstill except oil tank is provided with two vertical partition plates, to leave standstill except oil tank and be divided into oily water separation chamber and drain chamber, the vertical partition plate of the vertical partition plate lower end of oily water separation chamber one side and drain chamber one side upper end is respectively arranged with breach and makes between oily water separation chamber and the drain chamber and be connected, be provided with the isolation orifice plate on the top in oily water separation chamber, isolate orifice plate top in the oily water separation chamber and be provided with oil outlet, be provided with water port in the bottom of drain chamber; Described one-level pressure reduction breakdown of emulsion jar is connected with the water port that leaves standstill except the oil tank drain chamber with the lifting water pump by pipeline, and the top of one-level pressure reduction breakdown of emulsion jar is provided with oil outlet, and the bottom of one-level pressure reduction breakdown of emulsion jar is provided with water port; Described secondary pressure reduction breakdown of emulsion jar is connected by the water port of pipeline with one-level pressure reduction breakdown of emulsion jar, and the bottom of described secondary pressure reduction breakdown of emulsion jar is provided with water port; The inner chamber top of leaving standstill except oil tank, one-level pressure reduction breakdown of emulsion jar and secondary pressure reduction breakdown of emulsion jar is respectively arranged with hot water cyclesystem.
2. a kind of oilfield sewage pressure reduction breaking device according to claim 1 is characterized in that: the water port at the outlet, one-level pressure reduction breakdown of emulsion jar and the secondary pressure reduction breakdown of emulsion jar that promote water pump is respectively arranged with pressure test point and sewage thief hole.
3. a kind of oilfield sewage pressure reduction breaking device according to claim 1 and 2 is characterized in that: be respectively arranged with the polarity dope layer at the inwall that leaves standstill except oil tank, one-level pressure reduction breakdown of emulsion jar and secondary pressure reduction breakdown of emulsion jar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172211 CN203144205U (en) | 2013-04-09 | 2013-04-09 | Pressure differential emulsion breaking device of oilfield sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172211 CN203144205U (en) | 2013-04-09 | 2013-04-09 | Pressure differential emulsion breaking device of oilfield sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203144205U true CN203144205U (en) | 2013-08-21 |
Family
ID=48971748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320172211 Expired - Lifetime CN203144205U (en) | 2013-04-09 | 2013-04-09 | Pressure differential emulsion breaking device of oilfield sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203144205U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771621A (en) * | 2014-01-20 | 2014-05-07 | 南通华新环保设备工程有限公司 | De-oiling treatment method for sewage of oil refinery |
| US11434435B2 (en) | 2016-08-23 | 2022-09-06 | Sabic Global Technologies B.V. | Online zeta-potential measurements for optimization of emulsion breaker dosage in ethylene plants |
-
2013
- 2013-04-09 CN CN 201320172211 patent/CN203144205U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103771621A (en) * | 2014-01-20 | 2014-05-07 | 南通华新环保设备工程有限公司 | De-oiling treatment method for sewage of oil refinery |
| US11434435B2 (en) | 2016-08-23 | 2022-09-06 | Sabic Global Technologies B.V. | Online zeta-potential measurements for optimization of emulsion breaker dosage in ethylene plants |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |