CN214936667U - Ageing sump oil processing apparatus - Google Patents
Ageing sump oil processing apparatus Download PDFInfo
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- CN214936667U CN214936667U CN202121437804.XU CN202121437804U CN214936667U CN 214936667 U CN214936667 U CN 214936667U CN 202121437804 U CN202121437804 U CN 202121437804U CN 214936667 U CN214936667 U CN 214936667U
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Abstract
The utility model relates to an aging dirty oil treatment device, which comprises a stirring tank, an oil-water-solid three-phase centrifugal separation device and a water treatment device which are sequentially arranged along the flowing direction of a fluid, wherein the water treatment device comprises an oil-water separator and a filter tank; the stirring tank is a heating type stirring tank and is connected with a dosing device for dosing into the stirring tank, the stirring tank comprises a bottom outlet, the bottom outlet of the stirring tank is connected with a feed inlet of an oil-water-solid three-phase centrifugal separation device through a pipeline, a water phase outlet of the oil-water-solid three-phase centrifugal separation device is connected to an oil-water separator, the oil-water separator is connected with the dosing device for dosing into the oil-water separator, a water phase outlet of the oil-water separator is connected to a filtering tank, and the last filtering tank is connected with a drainage pipeline; the utility model discloses a heating, add medicine, high-speed centrifugation and tertiary filtration processing, changed the distribution state of oil, sand, water, realize separating the dross from ageing sump oil, guaranteed the water index.
Description
Technical Field
The utility model belongs to the technical field of the sump oil is handled, concretely relates to ageing sump oil processing apparatus.
Background
The dirty oil is also called aging oil in the petrochemical industry, and is an oil-water emulsified mixture with very high stability. The generation of aged dirty oil is mainly generated in the oil extraction process (especially chemical oil extraction) and the crude oil gathering and transportation process; and secondly, in the station dehydration process, the oil content of the sewage is enriched in the floating oil at the top of the sewage settling tank and the dirty oil recovered from the sewage pool. The aged dirty oil mainly has the following characteristics: the components are complex, and the emulsification degree is high; the oil and water can not be naturally settled and separated, and the oil-water interface is unclear, so that the settlement and water drainage are difficult, and the water content of the crude oil exceeds the standard due to direct outward transportation; a large amount of aged sump oil is put back to the sewage pool and then enters a crude oil treatment system through recovery, so that vicious circle is formed, and the treatment efficiency of the system is reduced.
The existing domestic and foreign methods for treating aged dirty oil generally comprise an electric field treatment technology, a thermochemical sedimentation technology, an ultrasonic treatment technology, a biological treatment technology, a centrifugal separation technology, a microwave treatment technology and the like, but the methods are not widely popularized due to various reasons such as poor applicability, high oil content of treated sewage, high treatment cost and the like, so that the aged dirty oil is effectively treated, and the methods become one of the problems to be solved urgently in domestic and foreign environment protection and the petroleum industry.
Chinese patent No. CN211921436U discloses a skid-mounted aging oil treatment device, which adopts a horizontal centrifuge and a butterfly separator to treat aging oil, the treated oil phase enters an oil storage tank, and sewage enters a sewage tank to be collected and discharged. However, the system is complex and high in one-time investment cost, and the system still needs to be further simplified.
Chinese patent No. CN209953061U discloses a dirty oil/aged oil horizontal decanter centrifuge processing skid block, in which a pre-heater is added to process dirty oil of the skid block, and the dirty oil directly enters the horizontal decanter centrifuge, enters an oil-water collecting box after centrifugal separation, is heated by steam, and is discharged from an oil-water outlet pipe. However, the oil and water are separated only by one stage, the water quality at the rear end cannot be guaranteed, and further treatment is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art and providing an ageing sump oil processing apparatus.
The technical scheme of the utility model as follows:
an aged dirty oil treatment device comprises a stirring tank, an oil-water-solid three-phase centrifugal separation device and a water treatment device which are sequentially arranged along the flowing direction of a fluid, wherein the water treatment device comprises an oil-water separator and a filter tank; the stirring tank is a heating type stirring tank and is connected with a dosing device for dosing in the stirring tank, the stirring tank comprises a bottom outlet, the bottom outlet of the stirring tank is connected with a feed inlet of an oil-water-solid three-phase centrifugal separation device through a pipeline, a water phase outlet of the oil-water-solid three-phase centrifugal separation device is connected to an oil-water separator, the oil-water separator is connected with the dosing device for dosing in the oil-water separator, a water phase outlet of the oil-water separator is connected to a filtering tank, and the last filtering tank is connected with a drainage pipeline.
Further, ageing sump oil processing apparatus still includes the buffer tank, the buffer tank sets up between oil water solid three-phase centrifugal separation device's liquid phase export and oil water separator.
Further, ageing sump oil processing apparatus still includes the oil tank, the upper portion of agitator tank is provided with the oil slick export, the oil slick export oil phase export of oil water solid three-phase centrifugal separation device and oil phase export of oil water separator are connected to the oil tank through the pipeline respectively.
Further, the aged dirty oil treatment device further comprises a silt pool, and a solid phase outlet of the oil-water-solid three-phase centrifugal separation device is connected to the silt pool.
Furthermore, the number of the stirring tanks is two, the stirring tanks are arranged in parallel, and one stirring tank is used for standby, so that the equipment can be ensured to run continuously.
Further, ageing sump oil processing apparatus still includes the heat preservation system, the heat preservation system is including setting up the first heat preservation in the pipeline periphery and the second heat preservation of parcel outside agitator tank, profit solid three-phase centrifugal separation device and oil water separator.
Furthermore, the stirring tank, the oil-water-solid three-phase centrifugal separation device, the water treatment device and the dosing device are all designed by skid mounting.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an ageing sump oil processing apparatus, through the heating, add the medicine, high-speed centrifugation and tertiary filtration treatment, the distribution state of oil, sand, water has been changed, the realization separates the dross from ageing sump oil, the water content of purified oil after the processing is controlled below 2%, the purified oil that deviates from reaches the defeated standard outward, aquatic oiliness is below 550mg/L, the water index has been guaranteed, the current situation about 5000mg/L of the oily index of present ageing oil treatment back aquatic has been broken, the separation efficiency of profit has been improved.
Drawings
Fig. 1 is a simplified schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
In the figure, a stirring tank 1, a heating coil 2, a chemical feeding tank 3, an oil-water-solid three-phase centrifugal separation device 4, an oil tank 5, a silt pool 6, a buffer tank 7, a water treatment device 8, an oil-water separator 81 and a filter tank 82 are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 2, the aged dirty oil treatment device comprises a stirring tank 1, an oil-water-solid three-phase centrifugal separation device 4, a water treatment device 8 and an oil tank 5 for collecting oil bodies, which are sequentially arranged along the flowing direction of a fluid, wherein the water treatment device 8 comprises an oil-water separator 81 and a filter tank 82; the stirring tank 1 is a heating type stirring tank 1 and is connected with a dosing device for dosing into the stirring tank 1, the tank body of the stirring tank 1 is cylindrical and comprises a bottom outlet positioned at the bottom and a floating oil outlet arranged at the top of the stirring tank 1, and the bottom of the stirring tank 1 adopts a cone to facilitate the outflow of materials; the floating oil outlet is communicated with the oil tank 5, and the upper layer floating oil can enter the oil tank 5 in an overflow mode; the dosing device comprises a dosing tank 3 and a dosing pump; the bottom outlet of the stirring tank 1 is connected with a feed inlet of an oil-water-solid three-phase centrifugal separation device 4 through a pipeline, a water phase outlet of the oil-water-solid three-phase centrifugal separation device 4 is connected to an oil-water separator 81, the oil-water separator 81 is connected with a dosing device for dosing into the oil-water separator 81, the water phase outlet of the oil-water separator 81 is connected to a filter tank 82, the filter tank 82 is a three-stage filter tank, the last filter tank 82 is connected with a drainage pipeline, and the filter tank 82 finally guarantees water outlet indexes under the conditions that incoming liquid is unstable and the oil content is large.
Specifically, the heating type stirring tank 1 can be obtained by adopting the prior art, for example, a blending device can be adopted for heating, dirty oil and medium-low pressure steam are fully mixed and heated, the temperature of the dirty oil is rapidly increased, or a heating coil 2 is adopted for heating in the tank body of the stirring tank 1 as shown in fig. 2, the effect of a medicament is fully exerted, the oil-water separation at the rear section is facilitated, and hot water, steam and hot oil can be adopted as heat flows in the heating coil 2; certainly, the stirring tank 1 is provided with a temperature control assembly in a matching way, and the temperature control assembly is connected with a PLC (programmable logic controller) system of a control system of the device, so that temperature control adjustment is facilitated; this device control system includes the main control cabinet and sets up the branch switch board at each processing apparatus respectively, and the main control cabinet passes through PLC program control branch switch board, and the control step that this application relates to is simple, and the control that relates to the switch board is conventional automatic control technique, no longer gives unnecessary details.
Further, the filter tank 82 is connected with a back flushing system, which can back flush the filter tank 82.
Further, as shown in fig. 1 to 2, the aged dirty oil treatment device further includes a buffer tank 7, the buffer tank 7 is disposed between a liquid phase outlet of the oil-water-solid three-phase centrifugal separation device 4 and the oil-water separator 81, an oil phase separated by the oil-water-solid three-phase centrifugal separation device 4 enters the oil tank 5, and a separated water phase directly enters the buffer tank 7.
Furthermore, an oil phase outlet arranged at the top of the oil-water separator 81 is communicated with the oil tank 5, the upper-layer floating oil can enter the oil tank 5 in an overflow mode, and the water at the lower-layer outlet directly enters the filter tank 82; the filter tank 82 further filters the water separated from the oil-water separator 81 to ensure that the water content of the treated purified oil is still controlled below 2% and the oil content in the water is below 550mg/L under the condition of unstable incoming liquid and relatively large oil content.
Further, as shown in fig. 1 to 2, the aged dirty oil treatment device further includes a silt basin 6, and a solid phase outlet of the oil-water-solid three-phase centrifugal separation device 4 is connected to the silt basin 6.
Further, as shown in fig. 1 to 2, the number of the stirring tanks 1 is two, and the stirring tanks are arranged in parallel, one is used after the other, so that the equipment can be ensured to run continuously.
Further, the aged dirty oil treatment device further comprises a heat preservation system, wherein the heat preservation system comprises a first heat preservation layer arranged on the periphery of the pipeline and a second heat preservation layer wrapped outside the stirring tank 1, the oil-water-solid three-phase centrifugal separation device 4 and the oil-water separator 81; through carrying out whole heat preservation to pipeline and jar body, prevent that temperature is low excessively, dirty oil blocks up the pipeline, perhaps jar body heat dissipation is too big to and prevent that steam pipeline and jar body high temperature from causing scald etc..
Furthermore, the stirring tank 1, the oil-water-solid three-phase centrifugal separation device 4, the water treatment device 8 and the dosing device are all in skid-mounted design, and transportation and hanging are facilitated.
It should be noted that, the utility model provides an oil-water-solid three-phase centrifugal separation device 4, charge device, oil-water separator 81 and tertiary filter tank adopt among the prior art can, what suit on each jar body and the pipeline installs conventional parts such as manhole, manual valve or automatically controlled valve and booster pump.
Aged dirty oil in a dirty oil pool or a dirty oil tank 5 directly enters a stirring tank 1, after the aged dirty oil enters the stirring tank 1, the aged dirty oil is heated, added with medicine, homogenized and stirred in the stirring tank 1, the floating oil on the upper layer overflows into the oil tank 5, other components are lifted to an oil-water-solid three-phase centrifugal separation device 4, the strength of an oil-water interfacial film is weakened to be thoroughly destroyed due to the interaction of strong mechanical shearing and medicines, simultaneously, silt, scum and the aged dirty oil in the aged dirty oil can be thoroughly separated, three media of oil liquid and solid are separated, an oil phase enters the oil tank 5, water enters a water treatment device 8, and a solid phase enters a silt pool; wherein, the water is subjected to oil-water separation again and three-stage separation and filtration in the water treatment device 8, the oil phase at the top of the oil-water separator 81 enters the oil tank 5 in an overflow mode, and the water body is subjected to oil-water separation 81 and three-stage separation and filtration, so that the water quality index of an outlet is ensured and the water reaches the discharge standard.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. An aging sump oil processing apparatus which characterized in that: the device comprises a stirring tank, an oil-water-solid three-phase centrifugal separation device and a water treatment device which are sequentially arranged along the flowing direction of fluid, wherein the water treatment device comprises an oil-water separator and a filter tank; the stirring tank is a heating type stirring tank and is connected with a dosing device for dosing in the stirring tank, the stirring tank comprises a bottom outlet, the bottom outlet of the stirring tank is connected with a feed inlet of an oil-water-solid three-phase centrifugal separation device through a pipeline, a water phase outlet of the oil-water-solid three-phase centrifugal separation device is connected to an oil-water separator, the oil-water separator is connected with the dosing device for dosing in the oil-water separator, a water phase outlet of the oil-water separator is connected to a filtering tank, and the last filtering tank is connected with a drainage pipeline.
2. The aged contaminated oil treatment apparatus according to claim 1, wherein: the oil-water-solid three-phase centrifugal separation device further comprises a buffer tank, wherein the buffer tank is arranged between a liquid-phase outlet of the oil-water-solid three-phase centrifugal separation device and the oil-water separator.
3. The aged contaminated oil treatment apparatus according to claim 1, wherein: the oil-water-solid three-phase centrifugal separation device is characterized by further comprising an oil tank, wherein a floating oil outlet is formed in the upper portion of the stirring tank, and the floating oil outlet, an oil phase outlet of the oil-water-solid three-phase centrifugal separation device and an oil phase outlet of the oil-water separator are connected to the oil tank through pipelines respectively.
4. The aged contaminated oil treatment apparatus according to claim 1, wherein: still include the silt basin, oil water solid three-phase centrifugal separation device's solid phase outlet is connected to the silt basin.
5. The aged contaminated oil treatment apparatus according to claim 1, wherein: the number of the stirring tanks is two, the stirring tanks are arranged in parallel, and one stirring tank is used for standby.
6. The aged contaminated oil treatment apparatus according to claim 1, wherein: still include the heat preservation system, the heat preservation system is including setting up the first heat preservation in the pipeline periphery and the second heat preservation of parcel outside agitator tank, solid three-phase centrifugal separation device of profit and oil water separator.
7. The aged contaminated oil treatment apparatus according to claim 1, wherein: the stirring tank, the oil-water-solid three-phase centrifugal separation device, the water treatment device and the dosing device are all designed by skid mounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121437804.XU CN214936667U (en) | 2021-06-25 | 2021-06-25 | Ageing sump oil processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121437804.XU CN214936667U (en) | 2021-06-25 | 2021-06-25 | Ageing sump oil processing apparatus |
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| CN214936667U true CN214936667U (en) | 2021-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590925A (en) * | 2022-03-13 | 2022-06-07 | 郑凯 | Oil field station oil-water pollutant reduction optimization treatment method |
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- 2021-06-25 CN CN202121437804.XU patent/CN214936667U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114590925A (en) * | 2022-03-13 | 2022-06-07 | 郑凯 | Oil field station oil-water pollutant reduction optimization treatment method |
| CN114590925B (en) * | 2022-03-13 | 2023-12-15 | 大庆中道易成石油科技有限公司 | Oil field station oil-water pollutant reduction optimization treatment method |
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Effective date of registration: 20230221 Address after: 100000 Beijing Chaoyang District Huixin East Street No. 16, 12th Floor Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING DESIGN Co.,Ltd. Address before: 450000 unit 3, building 2, Greenland Yuansheng international, No. 49, Jinshui East Road, Zhengzhou area (Zhengdong), Zhengzhou pilot Free Trade Zone, Henan Province Patentee before: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING DESIGN Co.,Ltd. |