CN201404714Y - Novel electric desalting and dehydrating device - Google Patents
Novel electric desalting and dehydrating device Download PDFInfo
- Publication number
- CN201404714Y CN201404714Y CN2009200883983U CN200920088398U CN201404714Y CN 201404714 Y CN201404714 Y CN 201404714Y CN 2009200883983 U CN2009200883983 U CN 2009200883983U CN 200920088398 U CN200920088398 U CN 200920088398U CN 201404714 Y CN201404714 Y CN 201404714Y
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- desalting
- ultrasonic
- oil
- dewatering device
- electrical
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Abstract
A novel electric desalting and dehydrating device consists of an electric desalting tank (5), an electrode (8), a crude oil inlet distributor (6), a crude oil outlet collector (7), an ultrasonic generator (4), transmission cables (3) and ultrasonic probes (1). The desalting and dehydrating device is characterized in that the ultrasonic probes (1) are arranged at two ends of the electric desaltingtank (5), connected with the outer wall at two ends of the electric desalting tank by flanges (2), and connected with the ultrasonic generator (4) by the transmission cables (3); the desalting and dehydrating device is used for desalting and dehydrating, has good demulsification effect and high desalting and dehydrating efficiency; after the crude oil is dehydrated, the oil content of sheared water can be reduced by 25-60%.
Description
Technical field
The utility model relates to the device with the refining hydrocarbon ils of electrical method or magnetic method, particularly removes the device of salt and water in the hydrocarbon ils with ultrasonic wave and pulse.
Background technology
In crude oil production and process, one important operation is exactly desalting and dewatering.At present people mainly utilize the heat sink electric field that falls, adds high pressure, add demulsifier and their compound action comes crude oil is carried out desalting and dewatering.But along with the variation of former oil quality, conventional desalting and dewatering method causes electro-desalting-distilling apparatus operation easier big, and especially electric desalting and dewatering band oil problem becomes increasingly conspicuous.Electric desalting apparatus sewage has become one of main source of oil refining enterprise sewage, sump oil.Electric desalting apparatus is cut water band oil increases the increase of crude oil processing loss, sewage sump oil intractability, and corresponding environmental issue also shows especially day by day.
Under the situation that environmental requirement is more and more higher and crude oil price is high, the development of new desalting dewatering device, can the effective recycling crude resources, reduce the qualified discharge of device refining losses and implement device sewage, alleviate impact and the secondary pollution of oil-polluted water to follow-up sewage treatment plant.Ultrasonic wave can be propagated in flowable profit as a kind of energy, and two kinds of different media of oil and salt solution are produced the relative displacement effect, therefore, the method for auxiliary other desalting and dewatering process of ultrasonic wave occurred.
CN2296230Y discloses a kind of " the ultrasonic emulsion breaking device of crude oil electric field dehydration ", it is to connect a ultrasonic wave active region in the front of electric dehydration jar, ultrasonic probe is installed on this ultrasonic wave active region housing outer wall and by transmission cable and links to each other with supersonic generator, uses this device can adapt to the processed of high viscosity, high density, the high content of wax or impurity and aging sump oil.This device mainly is the viscosity reduction breakdown of emulsion that is applicable to high viscosity oil, and the water oil-containing situation of cutting after the dehydration is not related to.
CN2539559Y discloses a kind of " crude oil ultrasonic wave-electric field associating desalter ", and this device comprises electrical desalter, ultrasonic wave active region, ultrasonic probe, supersonic generator.The ultrasonic wave active region is installed in crude oil and enters on the preceding pipeline of electrical desalter, and its axis direction is consistent with the flow direction of crude oil.The ultrasonic wave active region is the duct type structure, and end is the Taper Pipe district, and internal structure is conical.Ultrasonic probe is installed in the opposite in Taper Pipe district, the action of ultrasonic waves direction is consistent with the axis direction in Taper Pipe district, this scheme provides a single effect district that the ultrasonic wave action direction is consistent or opposite with liquid flow direction, the zone and the effect of ultrasonic wave effect have suitably been increased, but structure is too complicated, ultrasonic wave is subjected to the restriction of single effect, and demulsification is limited.
CN1589947A discloses a kind of " the ultrasonic combined effect of following current and adverse current makes the method and the device of oil-water emulsion breakdown of emulsion ".CN2810716Y discloses a kind of " ultrasonic demulsifier of emulsion ".Said apparatus common feature all be before the electric dehydration jar, to have increased a ultrasonic wave active region, so the single unit system pipeline increases the structure relative complex relatively.
The utility model content
The purpose of this utility model is that cutting water at present most electric desalting apparatus contains problems such as Chuck Steak, a kind of efficient, simple desalting dewatering device is provided, it can destroy the oil-water interfaces emulsion layer, reduce the thickness of emulsion layer, realize water-oil separating, cut water oil-containing purpose thereby reach the reduction electric desalting apparatus.
For realizing this purpose, the utility model proposes a kind of electrical desalting and dewatering device, this device is made up of electrical desalter 5, electrode 8, crude oil import distributor 6, crude exports gatherer 7, supersonic generator 4, transmission cable 3 and ultrasonic probe 1, be characterised in that ultrasonic probe 1 is installed in the two ends of electrical desalter, link to each other with supersonic generator by transmission cable, ultrasonic probe 1 is connected electrical desalter two ends outer wall by flange 2.
Ultrasonic wave of the present utility model active region is positioned on the oil-water interfaces of electrical desalter.
Described ultrasonic probe is at least one, when adopt a plurality of ultrasonic probes can a shared supersonic generator or each ultrasonic wave use from supersonic generator, ultrasonic probe extend into the oil-water interfaces layer of electrical desalter.Ultrasonic probe is to be connected with the flange that is welded on the electrical desalter outer wall by supported flange to be installed in the electrical desalter outer wall.The ultrasonic frequency of two groups of probes radiation can be identical with power, also can be inequality.
Ultrasonic intensity is 0.3w/cm
2～0.8w/cm
2, frequency is 20kHz～25kHz.
Two groups of ultrasonic probes can a shared supersonic generator, also can each with a supersonic generator.The quantity of every group of ultrasonic probe can be one, also can be two or more a plurality of, and when ultrasonic probe was two groups, the ultrasonic frequency of every group of probe radiation can be identical with power, also can be inequality.
Electrode in the electrical desalter can be a horizontal plate, also can be vertical plate, can also be the squirrel-cage compound electrode.
The utility model utilizes the displacement effect of ultrasonic wave in liquid, and displacement effect is the dominant mechanism of crude oil demulsification.The emulsified coarse-oil contained water amount of oil-water interfaces layer is many, is the oil-in-water structure, and water is continuous phase, and oil is decentralized photo.Ultrasonic energy is radiated in the emulsified crude oil, the oil-water emulsion structure is produced effects such as cohesion, breakdown of emulsion, vibration.Because the existence of displacement effect makes the oil droplet of decentralized photo constantly move, assemble to antinode or node, and bumps, form the bigger oil droplet of diameter, under buoyancy, rise then, thereby realize water-oil separating.
Hyperacoustic sound intensity and frequency are the key factors that influences Desalting and Dewatering from Crude Oil.When handling crude oil of different nature, selected hyperacoustic sound intensity is 0.3w/cm
2～0.8w/cm
2, frequency is for generally selecting 20kHz～25kHz.
Utilize the intensified by ultrasonic wave crude oil demulsification reach the quick desalination dehydration method be a kind of technology rationally, environmental friendliness, cost is low, efficient is high Desalting and Dewatering from Crude Oil means.Along with increasing of heavy crude and crude oil with poor quality, as a kind of householder method of Desalting and Dewatering from Crude Oil, ultrasonic wave will play an increasingly important role.
Compared with prior art, electrical desalting and dewatering device demulsification of the present utility model is good, and desalting and dewatering rate height is cut the water oil-containing and can be reduced by 25%～60% after crude oil takes off.
Description of drawings
Fig. 1 is the utility model electrical desalting and dewatering device front view, 1. ultrasonic probe, 2. flange, 3. transmission cable, 4. supersonic generator, 5. electrical desalter, 6. crude oil import distributor, 7. crude exports gatherer, 8. electrode.
Fig. 2 is the utility model electrical desalting and dewatering device
The specific embodiment
As shown in Figure 1, saliferous, wet crude enter electrical desalter 5 by crude oil import, behind crude oil import distributor 6, enter the high voltage electric field district, under the high voltage electric field effect, the little water droplet in the crude oil polarizes along direction of an electric field, and the electrostatic force between each adjacent drops impels their coalescent sinkings, because profit density contrast, oil and the very fast within a certain period of time layering of water in the crude oil form oil-water interfaces between two-layer, and the oil-water interfaces place is the emulsion layer that is difficult for breakdown of emulsion.In the utility model, because the energy that supersonic generator 4 produces sends ultrasonic probe 1 to by transmission cable 3, ultrasonic probe 1 radiate supersonic wave energy, the emulsion layer at this oil-water interfaces place produces effects such as cohesion, breakdown of emulsion, vibration under action of ultrasonic waves, make the oil droplet of decentralized photo constantly move, assemble, and bump, form the bigger oil droplet of diameter to antinode or node, under buoyancy, rise then, enter oil reservoir.Crude oil after the dehydration is discharged to the following process device through crude exports gatherer 7 by crude exports, and the desalination sewage that assemble electrical desalter 5 bottoms is discharged the motion device sewage disposal system through drain outlet.
Embodiment 1:
Certain oil density is 837.1Kg/m
3, water content 0.05%, salt content are 72.6mgNaCl/L, and demulsifier is water-soluble, and model is ERI1162, and water filling is a fresh water, PH=7,130 ℃ of desalination temperature, electric-field intensity are 800v/cm.Hyperacoustic sound intensity is 0.45w/cm
2, frequency is 20kHz.
Single stage desalting demulsifier injection rate is 15 μ g/g, and water injection rate 7%, secondary demulsifier dosage are 10 μ g/g, and water injection rate is 5%.
Result of the test under this condition such as following table:
| Take off the back water content, % | Take off the back salt content, mgNaCl/L | Cut the water oil-containing, μ g/g | |
| One-level | 0.25 | 8.97 | 79.2 |
| Secondary | 0.17 | 2.54 | 63.1 |
For the utility model and common desalting dewatering device are done one relatively, carried out contrast test: test does not add ultrasonic wave, and other condition is constant.Result of the test such as following table:
| Take off the back water content, % | Take off the back salt content, mgNaCl/L | Cut the water oil-containing, μ g/g | |
| One-level | 0.57 | 10.70 | 107.2 |
| Secondary | 0.42 | 2.43 | 91.8 |
Embodiment 2:
Certain oil density is 928.3Kg/m
3, water content 0.08%, salt content are 122.6mgNaCl/L, and demulsifier is an oil-soluble, and model is ERI1160, and water filling is fresh water PH=7,135 ℃ of desalination temperature, electric-field intensity are 800v/cm.Hyperacoustic sound intensity is 0.6w/cm
2, frequency is 20kHz.
Single stage desalting demulsifier addition is 15 μ g/g, and water injection rate 7%, secondary demulsifier dosage are 10 μ g/g, and water injection rate is 5%.
Result of the test under this condition such as following table:
| Take off the back water content, % | Take off the back salt content, mgNaCl/L | Cut the water oil-containing, μ g/g | |
| One-level | 0.40 | 18.58 | 119.3 |
| Secondary | 0.15 | 3.47 | 105.9 |
For the utility model and common desalting dewatering device are done one relatively, carried out contrast test: test does not add ultrasonic wave, and other condition is constant.Result of the test such as following table:
| Take off the back water content, % | Take off the back salt content, mg NaCl/L | Cut the water oil-containing, μ g/g | |
| One-level | 0.69 | 20.78 | 257.1 |
| Secondary | 0.37 | 4.73 | 246.5 |
From above-mentioned two embodiment as can be seen, compare, adopt the utility model method, cut the water oil-containing after crude oil takes off and to reduce by 25%～60% with common desalting and dewatering method.
Claims (8)
1. novel electrical desalting and dewatering device, form by electrical desalter (5), electrode (8), crude oil import distributor (6), crude exports gatherer (7), supersonic generator (4), transmission cable (3) and ultrasonic probe (1), it is characterized in that: ultrasonic probe (1) is installed in the two ends of electrical desalter (5), be connected with electrical desalter (5) two ends outer wall by flange (2), link to each other with supersonic generator (4) by transmission cable (3), the ultrasonic wave active region is positioned on the oil-water interfaces of electrical desalter (5).
2. according to the described electrical desalting and dewatering device of claim 1, it is characterized in that: two groups of ultrasonic probes can a shared supersonic generator, also can each with a wave sound wave producer.
3. according to the described electrical desalting and dewatering device of claim 1, it is characterized in that: two groups of ultrasonic probes, the ultrasonic frequency of every group of probe radiation is identical with power.
4. according to the described electrical desalting and dewatering device of claim 1, it is characterized in that: two groups of ultrasonic probes, the ultrasonic frequency and the power of the radiation of every group of probe are inequality.
5. according to the described electrical desalting and dewatering device of claim 1, it is characterized in that: the electrode in the electrical desalter is the horizontal plate electrode.
6. according to the described electrical desalting and dewatering device of claim 1, it is characterized in that: the electrode in the electrical desalter is a vertical plate.
7. according to the described electrical desalting and dewatering device of claim 1, it is characterized in that: the electrode in the electrical desalter is the squirrel-cage compound electrode.
8. according to the described electrical desalting and dewatering device of claim 1, it is characterized in that: ultrasonic intensity is 0.3w/cm
2～0.8w/cm
2, ultrasonic frequency is 20kHz～25kHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200883983U CN201404714Y (en) | 2009-01-23 | 2009-01-23 | Novel electric desalting and dehydrating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200883983U CN201404714Y (en) | 2009-01-23 | 2009-01-23 | Novel electric desalting and dehydrating device |
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| CN201404714Y true CN201404714Y (en) | 2010-02-17 |
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| CN2009200883983U Expired - Lifetime CN201404714Y (en) | 2009-01-23 | 2009-01-23 | Novel electric desalting and dehydrating device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102451579A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | Multi-channel feeding ultrasonic demulsification-electric desalting combined method and device thereof |
| CN102839012A (en) * | 2011-06-21 | 2012-12-26 | 中国石油化工股份有限公司 | Dehydration device for waste oil |
| CN103045294A (en) * | 2011-10-17 | 2013-04-17 | 中国石油天然气股份有限公司 | Electric treating desalting tank of compound ultrasonic wave demulsification and application of electric treating desalting tank |
| CN104277872A (en) * | 2013-07-05 | 2015-01-14 | 中国石油天然气股份有限公司 | U-shaped pipe crude oil ultrasonic preprocessor and use method thereof |
| CN110105977A (en) * | 2019-05-31 | 2019-08-09 | 青岛贝索科技有限公司 | The method and device of ultrasonic wave effect |
| CN112779048A (en) * | 2020-12-23 | 2021-05-11 | 中国石油大学(华东) | High-frequency pulse electrostatic-ultrasonic combined coalescence demulsification electric dehydrator |
| CN114101204A (en) * | 2021-11-22 | 2022-03-01 | 无锡市锡山德嘉电子有限责任公司 | Cleaner for treating sludge of desalting and dewatering tank based on ultrasonic technology |
-
2009
- 2009-01-23 CN CN2009200883983U patent/CN201404714Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102451579A (en) * | 2010-10-25 | 2012-05-16 | 中国石油化工股份有限公司 | Multi-channel feeding ultrasonic demulsification-electric desalting combined method and device thereof |
| CN102839012A (en) * | 2011-06-21 | 2012-12-26 | 中国石油化工股份有限公司 | Dehydration device for waste oil |
| CN102839012B (en) * | 2011-06-21 | 2015-04-08 | 中国石油化工股份有限公司 | Dehydration device for waste oil |
| CN103045294A (en) * | 2011-10-17 | 2013-04-17 | 中国石油天然气股份有限公司 | Electric treating desalting tank of compound ultrasonic wave demulsification and application of electric treating desalting tank |
| CN103045294B (en) * | 2011-10-17 | 2015-05-13 | 中国石油天然气股份有限公司 | Electric treating desalting tank of compound ultrasonic wave demulsification and application of electric treating desalting tank |
| CN104277872A (en) * | 2013-07-05 | 2015-01-14 | 中国石油天然气股份有限公司 | U-shaped pipe crude oil ultrasonic preprocessor and use method thereof |
| CN104277872B (en) * | 2013-07-05 | 2016-04-06 | 中国石油天然气股份有限公司 | A kind of U-shaped pipe crude oil ultrasonic pretreatment device |
| CN110105977A (en) * | 2019-05-31 | 2019-08-09 | 青岛贝索科技有限公司 | The method and device of ultrasonic wave effect |
| CN110105977B (en) * | 2019-05-31 | 2024-02-23 | 青岛贝索科技有限公司 | Method and device for ultrasonic action |
| CN112779048A (en) * | 2020-12-23 | 2021-05-11 | 中国石油大学(华东) | High-frequency pulse electrostatic-ultrasonic combined coalescence demulsification electric dehydrator |
| CN114101204A (en) * | 2021-11-22 | 2022-03-01 | 无锡市锡山德嘉电子有限责任公司 | Cleaner for treating sludge of desalting and dewatering tank based on ultrasonic technology |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Patentee after: China Petrochemical Group Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group Patentee before: China Petrochemical Group Corp. |
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Owner name: SINOPEC LUOYANG PETROCHEMICAL ENGINEERING CORPORAT Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20130327 Free format text: FORMER OWNER: SINOPEC LUOYANG PETROCHEMICAL ENGINEERING CORPORATION Effective date: 20130327 |
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Free format text: CORRECT: ADDRESS; FROM: 100728 CHAOYANG, BEIJING TO: 471003 LUOYANG, HENAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130327 Address after: 471003 Zhongzhou West Road, Henan, China, No. 27, No. Patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Luoyang Petrochemical Engineering Corporation /SINOPEC |
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| CX01 | Expiry of patent term |
Granted publication date: 20100217 |
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