CN102373076A - Updated heavy oil desalting and dewatering device - Google Patents
Updated heavy oil desalting and dewatering device Download PDFInfo
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- CN102373076A CN102373076A CN2010102644950A CN201010264495A CN102373076A CN 102373076 A CN102373076 A CN 102373076A CN 2010102644950 A CN2010102644950 A CN 2010102644950A CN 201010264495 A CN201010264495 A CN 201010264495A CN 102373076 A CN102373076 A CN 102373076A
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Abstract
The invention discloses an updated heavy oil desalting and dewatering device. The device is composed of an electrical desalting tank, a transformer and a high-voltage electronic joint device, an oil inlet main pipe, oil inlet branched pipes and flow regulating valves, wherein an upper electric field in the electrical desalting tank consists of at least one electric field unit and adopts the multiple electric field distribution technology of single power supply, each electric field unit consists of a drip tray, a live electrode, a grounding electrode, an oil inlet nozzle, a backwashing device and a down pipe; and a fast dewatering and draining device consists of a V-shaped drip tray, a backwashing device and a down pipe, a backwashing nozzle and the bottom surface of the drip tray forms an inclination, the top of the down pipe is connected with the bottom of the drip tray, and the other end is inserted in the water layer of the electrical desalting tank. The field intensity of the upper electric field of the device is optimized, fast dewatering and draining can be ensured, the desalting efficiency is increased; and the updated heavy oil desalting and dewatering device is suitable for the deep desalting and dewatering treatment of crude oil, particularly heavy crude oil, fuel oil and other heavy oil products.
Description
Technical field
The present invention relates to the BO pre-processing device, the particularly a kind of advanced desalination of heavy crude, oil fuel and other heavy oil products, equipment of processed of being used for can be widely used in the BO pre-treatment of enterprises such as petrochemical complex, oil refining, the dynamo-electric factory of combustion.
Background technology
Along with the continuous intensification of Oil extraction degree all over the world, crude oil poor qualityization and heaviness trend are more remarkable.Be reported in the virgin oil resource according to the USGS of United States Geological Survey, BO (API≤20 °) and extra heavy oil (API≤10 °) resource is the twice of light crude resource.Heavy oil output and treatment capacity surpass 13% in 2000 to 2009 all kinds of crude production rates in the world.Along with the increase day by day of heavy oil ratio, the value of the development and use of heavy oil highlights, heavy oil handle with the technological development of aspect such as deep processing be oil refining industry the device maximization, refinery is integrated and the important ring of intensivization development in strategic.
At first need carry out electric desalting before the crude refining, good desalting effect can reduce equipment corrosion and fouling, prolongs catalyst life, energy efficient and minimizing maintenance cost.Traditional interchange, alternating current-direct current desalting technology and equipment are fit to handle light crude; Exist in handling the heavy crude process that desalting effect is poor, equipment volume and investment is big, floor space is many, more than the draining oil-containing and shortcoming such as contaminate environment, the heavy oil electric desalting process performance difficulty of maximization.Along with the increase of crude runs, the manufacturer generally increases crude charging capacity through the volume that increases equipment.But because electric desalting equipment is bulky, the volume that increases equipment not only increases cost of investment greatly, and will occupy bigger space.When manufacturing enterprise just builds, often do not leave the leeway of enough increase equipment sizes, capacity expansion revamping can't be carried out.If want the strange land to carry out capacity expansion revamping, bring very big difficulty to the user.For this reason, some enterprises have successively developed the high speed electric desalting equipment.The high speed electric desalting equipment has been realized with less electrical desalter; Reached the target of bigger treatment capacity; But because the high speed electric desalting equipment exists structural defective, can only handle light crude, handle slightly heavy crude oil and take off the back saliferous and just do not reach the technical indicator of requirement; More can not handle heavy crude, some devices even can't send electric desalting.In recent years, U.S. Howe-Baker Engineers Ltd. has developed the heavy oil electric desalting equipment can to handle specific density has been 0.9861g/cm
3BO, but must add thinner, do not solve the direct desalination problem of BO at all.Pressing for of market promoting research and development and the application that a new generation handles the electrodesalting and electrodehydrating technology and equipment of heavy oil, the research and development of the heavy oil electrical desalting and dehydration equipment that particularly maximizes.
Summary of the invention
The object of the present invention is to provide a kind of BO desalting and dewatering equipment of renewal, to realize the quick electrical desalting and dehydration equipment of crude oil and heavy oil.
BO desalting and dewatering equipment for the renewal that realizes said purpose; Be characterized in that in described electrical desalter, the top electric field is positioned at the top of electrical desalter; The top electric field is made up of at least one electric field unit; Electric field unit, top is the semi closed electrode, and each electric field unit, top comprises water pond, charged horizontal combined electrode, the box-like electrode of ground connection horizontal group, back-purge system and downcomer, and charged horizontal combined electrode and the box-like electrode of ground connection horizontal group are installed in the water pond; Back-purge system comprises the back flushing nozzle; The back flushing nozzle becomes an inclination angle with the water pond bottom surface, and the top of downcomer is connected with the bottom of water pond, and the other end inserts the water layer of electrical desalter.
The BO desalting and dewatering equipment of described renewal; Its further characteristics are; The top electric field comprises a plurality of electric fields unit; Back and bottom electric field are installed in the electric field unit of top electric field, the electrical desalter horizontal axis is parallel, between electric field unit, top and the electrical desalter inwall certain spacing are arranged, and electric field unit, top also has certain spacing between any two.
The BO desalting and dewatering equipment of described renewal; Its further characteristics are, water pond top is a rectangle or foursquare disk-shaped structure, and the bottom is a V-arrangement or for V word lower cut-out shape or be pan bottom shape; Charged horizontal combined electrode is equal with the water pond end face; Perhaps be lower than the water pond end face, charged horizontal combined electrode and the box-like electrode of ground connection horizontal group, parallel with the electrical desalter horizontal axis after installing with the bottom electric field; Charged horizontal combined electrode is connected and charged with high voltage electric introducing equipment, and the box-like electrode of ground connection horizontal group is connected and ground connection with water pond.
The BO desalting and dewatering equipment of described renewal, its further characteristics are that the oil-feed shower nozzle is installed in the center upper portion or the lower central of the box-like electrode of ground connection horizontal group, and parallel with the box-like electrode of ground connection horizontal group, is connected with oil inlet pipe.
The BO desalting and dewatering equipment of described renewal; Its further characteristics are, back-purge system is made up of some backwash tubes and several back flushing nozzles, and the back flushing nozzle is vertical with backwash tube; The back flushing nozzle is uniformly distributed with and is welded on the backwash tube; Distance between the back flushing nozzle by the width decision of the water radian of back flushing nozzle ejection, guarantees not leak on the base plate of water pond when back flushing and dashes and the dead angle; Some backwash tubes all are connected with the back flushing water inlet pipe, and the base plate that back and water pond be installed parallels and certain clearance arranged.
The BO desalting and dewatering equipment of described renewal, its further characteristics is, the downcomer top is connected with the bottom of water pond, and perpendicular with the bottom of water pond, and the diameter of downcomer and radical are calculated definite by the maximum back flushing water yield.
The BO desalting and dewatering equipment of described renewal, its further characteristics are that described charged horizontal combined electrode and the box-like electrode of ground connection horizontal group are the grid-like electrode that metallic substance is processed.
The BO desalting and dewatering equipment of described renewal, its further characteristics are that the bottom electric field is the combined type horizontal electrode, perhaps is the built-up type vertical electrode.
The BO desalting and dewatering equipment of described renewal; Its further characteristics are; Charged horizontal combined electrode is electrically connected the electric desalting X-former that is installed in the electrical desalter top through high voltage electric introducing equipment; Top electric field and bottom electric field are communicated with the oil-feed house steward who is installed in the electrical desalter below through the oil-feed arm respectively, on each oil-feed arm regulating valve are installed.
The invention has the beneficial effects as follows:
(1) many electric field distribution technology of top electric field employing single power supply is carried out reasonable configuration to the electric field unit of top electric field; To reach rational electric field distribution; Make the efficient coalescence fast of the small saliferous water droplet that gets in the electric field crude oil become to be easy to settled macrobead water droplet, rapid subsidence is to the bottom of electric field under effect of electric field.
(2) water droplets coalescence of top electric field is deposited to the bottom of water pond, imports electrical desalter bottom water layer through downcomer.Take their own roads with the absolute oil of bottom electric field come-up; Absolute oil and top electric field coalescence sedimentation water droplet adverse current, the back-mixing of original high speed electric desalting technology bottom electric field come-up have been solved; Thereby make oil stream carry the saliferous water droplet and get into the absolute oil layer, make the problem that back crude oil water containing saliferous exceeds standard of taking off.
(3) space is arranged at the bottom of water pond, can deposit sedimentary silt and mechanical impurity in the crude oil, so do not need continually the bottom of water pond to be washed.Because the bottom of water pond is swash plate shape or pan bottom shape, sedimentary silt and mechanical impurity, can be automatically through be discharged to the electrical desalter jar at downcomer at the bottom of.Silt and the mechanical impurity do not got rid of automatically also can dash silt and mechanical impurity during back flushing with comparalive ease, are discharged at the bottom of the electrical desalter jar through downcomer, and sedimentary silt is rinsed well easily.When back flushing is carried out, can disturbance not arranged to the top electric field.
(4) the top electric field strength is stable, can not influence treatment effect because of sediment deposition or back flushing.Guaranteed that top electric field energy LP normally moves, the crude quality after the processing is relatively stable, and the crude oil after guaranteeing to handle can reach the technical indicator of regulation.
(5) oil-feed of double-oil-feeding double-electric-field electric desalting its upper side electric field is the highfield oil-feed, and the water droplet moment in the crude oil is agglomerated into big water droplet and sedimentation.Crude oil after the processing rises and drops of water fall down, and no adverse current phenomenon is not disturbed mutually, has improved dehydrating of crude oil efficient greatly.In addition, highfield has the effect of strengthening breakdown of emulsion, and water droplet can the moment coalescence after crude oil got into highfield.
(6) suitability is wide.Both light crude can be handled, also heavy crude can be handled.Saliferous is not more than under the situation of 100mg/L before crude Treatment, through the processing of two stage desalting dehydration equipment, just reach take off the back salt content in crud oil be not more than this index of 3mg/L.
Description of drawings
Fig. 1-a, 1-b are the structural representation of the BO desalting and dewatering equipment of renewal, and the bottom electric field is the combined type horizontal electrode, and the water pond bottom is a V-arrangement, and wherein Fig. 1-a is a front view, and Fig. 1-b is a right side view.
Fig. 2-a, 2-b are the structural representation of the BO desalting and dewatering equipment of renewal, and the bottom electric field is the combined type horizontal electrode.The water pond bottom is a V word lower cut-out shape, and wherein Fig. 2-a is a front view, and Fig. 2-b is a right side view.
Fig. 3-a, 3-b are the structural representation of the BO desalting and dewatering equipment of renewal, and the bottom electric field is the built-up type vertical electrode, and the water pond bottom is a pan bottom shape, and wherein Fig. 3-a is a front view, and Fig. 3-b is a right side view.
Fig. 4-a, 4-b is the structural representation of the BO desalting and dewatering its upper side electric field back-purge system of renewal, and wherein Fig. 4-a is a front view, and Fig. 4-b is a vertical view.
Embodiment
At accompanying drawing 1-a, 1-b, accompanying drawing 2-a, 2-b, among accompanying drawing 3-a, the 3-b, for the ease of observing, electrical desalter 1 is depicted as transparent.
With reference to Fig. 1-a, Fig. 1-b, and simultaneously with reference to Fig. 4-a, 4-b, desalting and dewatering equipment comprises electrical desalter 1, is installed in the electric desalting X-former 2 of electrical desalter 1 top, high voltage electric is introduced equipment 3, oil-feed house steward 15, oil- feed arm 16 and 17, regulating valve 18.In electrical desalter 1, bottom electric field 4 is installed.Bottom electric field 4 is combined type horizontal electrode (referring to accompanying drawing 1-a, 1-b), also can be built-up type vertical electrode (referring to accompanying drawing 3-a, 3-b).In described electrical desalter 1, top electric field 5 is installed above bottom electric field 4.Top electric field 5 is made up of several (at least one is three in embodiment as shown in the figure) electric field unit, top 6, and electric field unit, top 6 is the semi closed electrode.After electric field unit, top 6 is installed, the space bearing of trend of its space bearing of trend and bottom electric field 4 and electrical desalter 1 parallel axes.Between electric field unit 6, top and electrical desalter 1 inwall certain spacing is arranged, electric field unit, top 6 also has certain spacing between any two.The total length (comprising electric field unit, top 6 spacing between any two) of back addition is installed in all electric field unit, top 6, equals the tangential length (electrical desalter 1 removes two end socket length) of electrical desalter 1.
Electric field unit 6, top is made up of the box-like electrode of water pond 7, charged horizontal combined electrode 8, ground connection horizontal group 9, oil-feed shower nozzle 10, back-purge system 11 and downcomer 19.Water pond 7 tops are a rectangle or foursquare disk-shaped structure, and the bottom is V-arrangement (referring to accompanying drawing 1-a, 1-b), perhaps is V word lower cut-out shape (referring to accompanying drawing 2-a, 2-b), perhaps is pan bottom shape (referring to accompanying drawing 3-a, 3-b).Charged horizontal combined electrode 8 is installed in the water pond 7, and is equal with water pond 7 end faces, perhaps is lower than water pond 7 end faces.The box-like electrode 9 of ground connection horizontal group is installed in the water pond 7, below charged horizontal combined electrode 8.Charged horizontal combined electrode 8 and the box-like electrode 9 of ground connection horizontal group are installed its space bearing of trend of back and bottom electric field 4 and electrical desalter 1 parallel axes.Charged horizontal combined electrode 8 is introduced equipment 3 with high voltage electric and is connected and charged, and the box-like electrode 9 of ground connection horizontal group is connected and ground connection with water pond 7.Charged horizontal combined electrode 8 and the box-like electrode 9 of ground connection horizontal group are the grid-like electrode that metallic substance is processed.
Oil-feed shower nozzle 10 is installed in the center upper portion or the lower central of the box-like electrode 9 of ground connection horizontal group, is close to the box-like electrode 9 of ground connection horizontal group, and parallel with the box-like electrode of ground connection horizontal group 9, is connected with oil-feed arm 16.
Back-purge system 11 is made up of (referring to accompanying drawing 4-a, 4-b) some backwash tubes 12 and several back flushing nozzles 13.Back flushing nozzle 13 is vertical with backwash tube 12, and back flushing nozzle 13 becomes an inclination angle with water pond 7 bottom surfaces, is uniformly distributed with to be welded on the backwash tube 12.Distance between the back flushing nozzle 13 by the width decision of the water radian of back flushing nozzle 13 ejection, guarantees not leak on the base plate of water pond 7 when back flushing and dashes and the dead angle.Some backwash tubes 12 all are connected with back flushing water inlet pipe 14, and the base plate that back and water pond 7 be installed parallels and certain clearance arranged.
The top of downcomer 19 is connected with the bottom of water pond 7, and the top is equal with the bottom of water pond 7 or a little less than the bottom of water pond 7, and perpendicular with the bottom of water pond 7, and the other end inserts the water layer of electrical desalter 1.The diameter of downcomer 19 and radical are calculated by the maximum back flushing water yield to be confirmed.
After crude oil injected emulsion splitter and washing water mixing, process oil-feed house steward 15 and oil-feed arm 16 were to 5 oil-feeds of top electric field.Process oil-feed house steward 15 and oil-feed arm 17 are to 4 oil-feeds of bottom electric field.Can make top electric field 5 and bottom electric field 4 obtain the ideal crude charging capacity through regulating the regulating valve 18 on the oil-feed arm 17.Because top electric field 5 is about 50% of total treatment capacity with bottom electric field 4 crude charging capacities, top electric field 5 is respectively an independently low speed electric desalting equipment with bottom electric field 4 like this.The top electric field is operation like this.After crude oil injected emulsion splitter and washing water mixing, process oil-feed house steward 15 and oil-feed arm 16 were to 5 oil-feeds of top electric field.Through oil-feed shower nozzle 10 with water solution of oil spirt top electric field 5; In the high tension electrostatic field that the box-like electrode 9 of charged horizontal combined electrode 8 and ground connection horizontal group is formed; Under the effect of electrical forces; Water droplet is assembled the bottom that is deposited to water pond 7, and the ponding in the water pond imports electrical desalter 1 bottom water layer through downcomer 19.Absolute oil after the processing buoyance lift that makes progress gets into electrical desalter 1 top absolute oil layer, and silt in the crude oil and mechanical impurity are deposited to the bottom of water pond 7.Because the bottom of water pond 7 is swash plate shape or pan bottom shape, sedimentary silt and mechanical impurity, can be automatically be discharged to 1 jar of electrical desalter through downcomer 19 at the bottom of.Silt and the mechanical impurity automatically got rid of also can dash silt and mechanical impurity during back flushing with comparalive ease, pass through downcomer 19 and are discharged at the bottom of 1 jar of the electrical desalter, and sedimentary silt is rinsed well easily.According to what of the silt of the bottom settlings of water pond 7 and mechanical impurity amount, regularly or the bottoms of 11 pairs of water ponds 7 of irregular startup back-purge system wash.Because the bottom of water pond 7 has certain space to deposit sedimentary silt and mechanical impurity, so do not need continually the bottom of water pond 7 to be washed.Even when back flushing is carried out; Can disturbance not arranged to the high tension electrostatic field of forming by charged horizontal combined electrode 8 and the box-like electrode 9 of ground connection horizontal group yet; Thereby guaranteed that top electric field 5 can normally move by LP, and guaranteed that the crude oil after top electric field 5 is handled can reach the technical indicator of regulation.
The bottom electric field is operation like this.,, be stratiform and slowly get into bottom electric field 4 through the emulsion that oil-feed sparger 20 comes out to 4 oil-feeds of bottom electric field through oil-feed house steward 15 and oil-feed arm 17, under the effect of electrical forces, water droplet is assembled and is deposited at the bottom of 1 jar of the electrical desalter.Absolute oil after bottom electric field 4 dehydration buoyance lift that makes progress.Through electric field unit, top 6 spacing between any two, the spacing between electric field unit 6, top and electrical desalter 1 inwall flows into electrical desalter 1 top absolute oil layer.Because assembling settled saline sewage, top electric field 5 imports electrical desalter 1 bottom water layer through downcomer 19; Take their own roads with absolute oil after bottom electric field 4 dehydration buoyance lift that makes progress; Absolute oil after bottom electric field 4 dehydration and the settled saline sewage of top electric field 5 gatherings do not contact not can back mixing; It is such to go out phenomenon U.S. high speed electric desalting technology, and the absolute oil after 4 dehydrations of bottom electric field is assembled settled saline sewage with top electric field 5 and taken electrical desalter 1 out of, makes crude oil take off back saliferous situation not up to standard.
Employing has the BO desalting and dewatering equipment of the unitary renewal of a plurality of top electric field and fast draining, blowdown apparatus and Technology, invests for a short time, and floor space is few, and suitability is wide.Both light crude can be handled, also heavy crude or extra heavy oil can be handled.Handle density and be not more than 0.9861g/cm
3Heavy crude, saliferous is not more than under the situation of 100mg/L before crude Treatment, through the two stage desalting processed, just can reach and take off the back salt content in crud oil and be not more than 3mg/L, moisturely in the crude oil is not more than 0.3%, oil-containing is not more than technical indicators such as 150PPm in the draining.
Adopt the carrying out of previous embodiment to test as follows.
Test is seen table 1 with feedstock property, and the two electric field desalination operational conditions of two oil-feeds are seen table 2, and the desalting and dewatering effect comparison is seen table 3.
Table 1 oil property
The two electric field desalination operational conditions of table 2 pair oil-feed
Table 3 Technology of the present invention and high speed technology of electric de-salting technology desalting and dewatering effect comparison
Claims (9)
1. the BO desalting and dewatering equipment of a renewal comprises electrical desalter, X-former and high voltage electric introducing equipment, oil-feed house steward, oil-feed arm and regulating valve, it is characterized in that; In described electrical desalter; The top electric field is positioned at the top of electrical desalter, and the top electric field is made up of at least one electric field unit, and electric field unit, top is the semi closed electrode; Each electric field unit, top comprises water pond, charged horizontal combined electrode, the box-like electrode of ground connection horizontal group, back-purge system and downcomer; Charged horizontal combined electrode and the box-like electrode of ground connection horizontal group are installed in the water pond, and back-purge system comprises the back flushing nozzle, and the back flushing nozzle becomes an inclination angle with the water pond bottom surface; The top of downcomer is connected with the bottom of water pond, and the other end inserts the water layer of electrical desalter.
2. the BO desalting and dewatering equipment of renewal as claimed in claim 1; It is characterized in that; The top electric field comprises a plurality of electric fields unit; Back and bottom electric field are installed in the electric field unit of top electric field, the electrical desalter horizontal axis is parallel, between electric field unit, top and the electrical desalter inwall certain spacing are arranged, and electric field unit, top also has certain spacing between any two.
3. the BO desalting and dewatering equipment of renewal as claimed in claim 1; It is characterized in that water pond top is a rectangle or foursquare disk-shaped structure, the bottom is V-arrangement or is that V word lower cut-out shape perhaps is pan bottom shape; Charged horizontal combined electrode is equal with the water pond end face; Perhaps be lower than the water pond end face, charged horizontal combined electrode and the box-like electrode of ground connection horizontal group, parallel with the electrical desalter horizontal axis after installing with the bottom electric field; Charged horizontal combined electrode is connected and charged with high voltage electric introducing equipment, and the box-like electrode of ground connection horizontal group is connected and ground connection with water pond.
4. the BO desalting and dewatering equipment of renewal as claimed in claim 1 is characterized in that, the oil-feed shower nozzle is installed in the center upper portion or the lower central of the box-like electrode of ground connection horizontal group, and parallel with the box-like electrode of ground connection horizontal group, is connected with oil inlet pipe.
5. the BO desalting and dewatering equipment of renewal as claimed in claim 1; It is characterized in that back-purge system is made up of some backwash tubes and several back flushing nozzles, the back flushing nozzle is vertical with backwash tube; The back flushing nozzle is uniformly distributed with and is welded on the backwash tube; Distance between the back flushing nozzle by the width decision of the water radian of back flushing nozzle ejection, guarantees not leak on the base plate of water pond when back flushing and dashes and the dead angle; Some backwash tubes all are connected with the back flushing water inlet pipe, and the base plate that back and water pond be installed parallels and certain clearance arranged.
6. the BO desalting and dewatering equipment of renewal as claimed in claim 1 is characterized in that, the downcomer top is connected with the bottom of water pond, and perpendicular with the bottom of water pond, and the diameter of downcomer and radical are calculated by the maximum back flushing water yield to be confirmed.
7. the BO desalting and dewatering equipment of renewal as claimed in claim 1 is characterized in that, described charged horizontal combined electrode and the box-like electrode of ground connection horizontal group are the grid-like electrode that metallic substance is processed.
8. the BO desalting and dewatering equipment of renewal as claimed in claim 1 is characterized in that, the bottom electric field is the combined type horizontal electrode, perhaps is the built-up type vertical electrode.
9. the BO desalting and dewatering equipment of renewal as claimed in claim 1; It is characterized in that; Charged horizontal combined electrode is electrically connected the electric desalting X-former that is installed in the electrical desalter top through high voltage electric introducing equipment; Top electric field and bottom electric field are communicated with the oil-feed house steward who is installed in the electrical desalter below through the oil-feed arm respectively, on each oil-feed arm regulating valve are installed.
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| CN104987880A (en) * | 2015-07-06 | 2015-10-21 | 江苏金门能源装备有限公司 | Automatic sand flushing device for upper electric field water discs |
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| CN107033948A (en) * | 2017-06-08 | 2017-08-11 | 江苏金门能源装备有限公司 | Using the Desalting and Dewatering from Crude Oil equipment and processing method of not same electric field combination application |
| CN114317028A (en) * | 2021-12-29 | 2022-04-12 | 江苏金门能源装备有限公司 | Multi-electric-field electric desalting and dewatering system and equipment adopting vertical polar plates |
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| WO2017005089A1 (en) * | 2015-07-06 | 2017-01-12 | 江苏金门能源装备有限公司 | Electric desalting and dehydration apparatus |
| US20180201846A1 (en) * | 2015-07-06 | 2018-07-19 | Jiangsu Golden Gate Energy & Equipment Co., Ltd | Electric desalting and dehydration apparatus |
| US10479945B2 (en) | 2015-07-06 | 2019-11-19 | Jiangsu Golden Gate Energy & Equipment Co., Ltd | Electric desalting and dehydration apparatus |
| CN105154131A (en) * | 2015-07-07 | 2015-12-16 | 江苏金门能源装备有限公司 | Automatic sand flushing device |
| CN105176573A (en) * | 2015-07-07 | 2015-12-23 | 江苏金门能源装备有限公司 | Double-oil inlet double-electric field electro-desalting equipment upper electric field oil inlet distribution device |
| CN105154131B (en) * | 2015-07-07 | 2017-03-22 | 江苏金门能源装备有限公司 | Automatic sand flushing device |
| CN107033948A (en) * | 2017-06-08 | 2017-08-11 | 江苏金门能源装备有限公司 | Using the Desalting and Dewatering from Crude Oil equipment and processing method of not same electric field combination application |
| CN107033948B (en) * | 2017-06-08 | 2018-12-25 | 江苏金门能源装备有限公司 | Using the Desalting and Dewatering from Crude Oil equipment and processing method of not same electric field combined application |
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| CN116083118A (en) * | 2023-04-07 | 2023-05-09 | 山东产研中科高端化工产业技术研究院有限公司 | Crude oil desalting and dewatering pretreatment device |
| CN116083118B (en) * | 2023-04-07 | 2023-06-09 | 山东产研中科高端化工产业技术研究院有限公司 | Crude oil desalting and dewatering pretreatment device |
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