CN200999235Y - Electric desalting dewatering equipment - Google Patents
Electric desalting dewatering equipment Download PDFInfo
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- CN200999235Y CN200999235Y CNU2007200893543U CN200720089354U CN200999235Y CN 200999235 Y CN200999235 Y CN 200999235Y CN U2007200893543 U CNU2007200893543 U CN U2007200893543U CN 200720089354 U CN200720089354 U CN 200720089354U CN 200999235 Y CN200999235 Y CN 200999235Y
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Abstract
The utility model discloses an electrical desalting and dewatering equipment used to remove the salt and the water in the monolene. Such equipment pertains to the field of the petrochemical industry and solves such problems as the unfavorable water drop subsiding, super standard drainage with oil and unqualified salt & water containing which occur in the existing electrical desalting and dewatering equipment. This utility model is characterized in that the electrode (6) is arranged with at least two layers from the inner side to the outside; each layer of the electrode (6) is composed of the upper arch electrode (61) and the lower plane electrode (62). The oil-in dispatchers (9) is available at both sides of the container (2). Two oil-in dispatchers (9) are equipped with the arc jet (41) and the rectangle jet (42), which are opposite to all of the arc and plane space between the two adjoining electrodes (6). The outlet pipe (7) is arranged at the top and middle of the container (2) along the axial length thereof. This utility model is applicable to the electro-desalting and electro-dehydrating of the monolene in the refinery and the oil field.
Description
Technical field
The utility model relates to the electrical desalting and dehydration equipment that used a kind of of petrochemical industry removes salt and water in the hydrocarbon ils.
Background technology
Hydrocarbon ils particularly crude oil needs elder generation's process electrical desalting and dehydration equipment to remove its contained Yan Heshui before refinery processing.At present, the electrical desalting and dehydration equipment of oil field and refinery use both at home and abroad mostly is horizontal equipment, and institute's making alive is alternating-current or direct current, forms interchange, direct current or AC-to-DC electric field in tank body.The electrode form that the hydrocarbon ils electrical desalting and dehydration equipment adopts mainly contains horizontal plate electrode and vertical hanging electrode.Chinese patent CN1298922A discloses a kind of electro-dewatering demineralizer, it is characterized in that electrode is the squirrel-cage electrode assembly of annular for the multilayer cross section, adopts hydrocarbon ils flat flow baffle plate shape oil-feed sparger.In the operating process, by an end oil-feed of electric desalting and dewatering device, the other end is fuel-displaced.Since form the multi-layer annular electric field, electric field utilization ratio height, and oily water separation efficient is higher.But owing to the end of hydrocarbon ils by tank body enters, flow out from the other end, flow process is longer relatively, and flow velocity is very fast, is unfavorable for the sedimentation of water droplet.Simultaneously owing to form " line-face " space, the electric field instability between outer electrode bottom and the water-oil interface; For the relatively more difficult hydrocarbon ils of desalting and dewaterings such as heavy oil, viscous crude, high saliferous wet oil, desalting and dewatering effect instability, even situations such as the draining oil-containing exceeds standard can appear.CN2192368Y discloses a kind of efficient electrical desalting and dewatering device, adopts the former oil dispenser of rectilinear suspension grid type battery lead plate and a kind of pipe row's formula; The former oil dispenser of pipe row's formula is positioned at electrodesalting and electrodehydrating jar bottom, and it makes hydrocarbon ils (former wet goods) distribute more evenly in jar.But owing to adopt tank body bottom oil-feed, the fuel-displaced mode in top, the water droplet in the hydrocarbon ils that is entered by the tank body bottom is in coalescent under the electric field action and sedimentation under action of gravity, and in settling process with the hydrocarbon ils generation back-mixing that rises; Simultaneously, hydrocarbon ils also has retardation to the water droplet that descends.Therefore, often cause a jar interior water-oil interface instability, the oil-water emulsion layer is thicker, cause electrodesalting and electrodehydrating easily after the hydrocarbon ils saliferous moisture not up to standard.
Summary of the invention
The purpose of this utility model is to provide a kind of electrical desalting and dehydration equipment, with solve that the existing drops of water fall down of existing electrical desalting and dehydration equipment is unfavorable, the draining oil-containing exceeds standard and electrodesalting and electrodehydrating after the moisture problem not up to standard of hydrocarbon ils saliferous.
For addressing the above problem, the technical solution adopted in the utility model is: a kind of electrical desalting and dehydration equipment, comprise tank body, be provided with horizontally disposed electrode in the tank body, the oil-feed divider, tank body is provided with oil inlet pipe, oil outlet pipe, rising pipe, oil outlet pipe is positioned at the top of tank body, it is characterized in that: electrode is provided with 2 layers from inside to outside at least, every layer of electrode is made up of superposed arc surface electrode and the plane electrode that is positioned at the bottom, at the two ends of tank body an oil-feed divider is set respectively, the oil-feed divider links to each other with oil inlet pipe, two oil-feed dividers are equipped with circular-arc nozzle and rectangle spout, circular-arc nozzle is provided with corresponding to the circular arc space between the arc surface electrode of all adjacent two layers electrodes, the rectangle spout is provided with corresponding to the planar shaped space between the plane electrode of all adjacent two layers electrodes, and described oil outlet pipe is positioned at the middle part of tank body axial length.
Adopt the utility model, have following beneficial effect: the oil-feed divider of (1) the utility model electrical desalting and dehydration equipment is arranged at the two ends of tank body, oil outlet pipe is positioned at the middle part of tank body axial length, adopts tank body two ends oil-feed, middle fuel-displaced mode in the operating process; With respect to the described electro-dewatering demineralizer of CN1298922A, the hydrocarbon ils flow process is shorter, can reduce the velocity of flow of hydrocarbon ils under the identical situation of treatment capacity, thereby helps the sedimentation of water droplet, improves the efficient of oily water separation; (2) the arc surface electrode in the electrode is similar to the shape of tank body, and plane electrode is similar to the shape of water-oil interface, can make full use of a jar intravital space, guarantees oil-water separation.Form " face-face " planar shaped space between the plane electrode of outer electrode and the water-oil interface, can form stable electric field; The shape in the circular arc space (forming the circular arc electric field after the electrifying electrodes) between the circular-arc nozzle in (3) two oil-feed dividers and the arc surface electrode of adjacent two layers electrode is similar, and the shape in the planar shaped space (formation planar shaped electric field after the electrifying electrodes) between the plane electrode of rectangle spout and adjacent two layers electrode is similar; Hydrocarbon ils directly enters circular arc electric field and planar shaped electric field by circular-arc nozzle and rectangle spout along the direction (being along continuous straight runs) that is parallel to electrode in the operating process, make the distribution of hydrocarbon ils in electric field more reasonable, and prolong the residence time of hydrocarbon ils in electric field; (4) electrical desalting and dehydration equipment of the present utility model adopts the mode of hydrocarbon ils horizontal flow, can not cause the back-mixing between water droplet and the hydrocarbon ils, and hydrocarbon ils does not have retardation to the water droplet that descends yet simultaneously; Therefore, jar intravital water-oil interface are stable, and the oil-water emulsion layer is thinner.
Because above-mentioned, the utility model electrical desalting and dehydration equipment can improve the electric field utilization ratio, improves oily water separation efficient and treatment capacity, guarantee draining contain oil index and electrodesalting and electrodehydrating after the moisture index of hydrocarbon ils saliferous reach qualified.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.The drawings and specific embodiments do not limit the claimed scope of the utility model.
Description of drawings
Fig. 1 is the utility model electrical desalting and dehydration equipment sectional view vertically.
Fig. 2 is the A-A sectional view among Fig. 1.
Fig. 3 is that B among Fig. 1 is to view.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, electrical desalting and dehydration equipment of the present utility model comprises tank body 2, is provided with horizontally disposed electrode 6, oil-feed divider 9 in the tank body 2, and tank body 2 is provided with oil inlet pipe 3, oil outlet pipe 7, rising pipe 10, also has power supply 1.Wherein oil inlet pipe 3 is positioned at the pot bottom at tank body 2 two ends, and oil outlet pipe 7 is positioned at the top of tank body 2.Electrode 6 is provided with 2 layers from inside to outside at least, generally is to be provided with 2～4 layers; Fig. 1, shown in Figure 2, setting be 2 layers.Every layer of electrode 6 is made up of superposed arc surface electrode 61 and the plane electrode 62 that is positioned at the bottom, and wherein plane electrode 62 is horizontally disposed with.Form the circular arc space between the arc surface electrode 61 of adjacent two layers electrode 6, form the planar shaped space between the plane electrode 62.After electrode 6 energisings, above-mentioned space forms circular arc electric field and planar shaped electric field respectively.Each layer electrode 6 generally is made up of many round steel 63 (cross section is circular rod iron or steel pipe) and supporting cup 64, referring to Fig. 2 and Fig. 1.
At the two ends of tank body 2 an oil-feed divider 9 is set respectively, oil-feed divider 9 links to each other with oil inlet pipe 3.Two oil-feed dividers 9 are equipped with circular-arc nozzle 41 and rectangle spout 42; Circular-arc nozzle 41 is provided with corresponding to the circular arc space between the arc surface electrode 61 of all adjacent two layers electrodes 6, and rectangle spout 42 is provided with corresponding to the planar shaped space between the plane electrode 62 of all adjacent two layers electrodes 6; Referring to Fig. 1, Fig. 2.Each oil-feed divider 9 shown in the accompanying drawing is by circular-arc nozzle 41, rectangle spout 42, cavity 5, pipe connecting 92 be responsible for 91 and form.Circular-arc nozzle 41, rectangle spout 42 lay respectively at the end of two cavitys 5, and the inside of each cavity 5 is cavity.The other end of two cavitys 5 links to each other with two pipe connectings 92 respectively, and two pipe connectings 92 all link to each other with the person in charge 91.The person in charge 91 of two oil-feed dividers 9 links to each other with two oil inlet pipes 3 respectively.Fig. 3 is the vertical view of circular-arc nozzle 41 and place cavity 5 thereof; The vertical view of rectangle spout 42 and place cavity 5 thereof is identical with it, and figure slightly.The circular-arc nozzle 41 and the rectangle spout 42 of each oil-feed divider 9 are provided with in groups, and its quantity depends on the number of plies of electrode 6.Electrical desalting and dehydration equipment shown in the accompanying drawing is provided with 2 layers of electrode 6, forms a circular arc space and a planar shaped space, and each oil-feed divider 9 is provided with one group of circular-arc nozzle 41 and rectangle spout 42 corresponding to these two spaces.If electrical desalting and dehydration equipment is provided with 4 layers of electrode 6, form 3 circular arc spaces and 3 planar shaped spaces, then each oil-feed divider 9 is provided with 3 groups of circular-arc nozzles 41 and rectangle spout 42 corresponding to above-mentioned space.
The setting of oil-feed divider 9 should be able to guarantee that hydrocarbon ils directly enters circular arc electric field and planar shaped electric field between the electrode 6 by circular-arc nozzle 41 and rectangle spout 42 ejection backs along the direction (being along continuous straight runs) that is parallel to electrode 6.The distance of circular-arc nozzle 41 and rectangle spout 42 distance electrodes 6 end faces is generally-100 millimeters～+ 100 millimeters; Negative sign, positive sign represent that above-mentioned spout stretches into, do not stretch to circular arc space and the planar shaped space between the adjacent two layers electrode 6.
Electrode 6 supports with insulation according to a conventional method and insulate to hang and is fixed on (not shown)s in the tank body 2.Electrode 6 should be installed on the water-oil interface 8 in the tank body 2 (referring to Fig. 1, Fig. 2).Each layer electrode 6 alternately links to each other and ground connection with power supply 1 successively; Wherein outermost electrode 6 links to each other with power supply 1, tank body 2 ground connection.Power supply 1 can be AC power or direct supply.After the energising, the strength of electric field general requirement of formed circular arc electric field and planar shaped electric field is 600～1500 volt/cm between the electrode 6.Wherein the strength of electric field of circular arc electric field is measured at the top of circular arc electric field.Electrical desalting and dehydration equipment shown in Figure 1, outer field electrode 6 links to each other with power supply 1, the electrode 6 of internal layer and tank body 2 ground connection (figure slightly).
Be that example illustrates operating process of the present utility model with electrical desalting and dehydration equipment shown in Figure 1 below.The aqueous hydrocarbon ils of saliferous enters oil-feed divider 9 by oil inlet pipe 3, directly enters circular arc electric field and planar shaped electric field between the electrode 6 through the circular-arc nozzle on the oil-feed divider 9 41 and rectangle spout 42 along the direction that is parallel to electrode 6 again.In electric field, hydrocarbon ils vertically to the central horizontal flow sheet of tank body 2, carries out electrodesalting and electrodehydrating from the two ends of tank body 2; Hydrocarbon ils behind the desalting and dewatering flows out through oil outlet pipe 7.The water droplet that descends in the electrodesalting and electrodehydrating process is the horizontal parabola track along the hydrocarbon ils flow direction and descends, and is deposited on the bottom of tank body 2, is discharged by the rising pipe 10 of tank body 2 bottoms at last.
Below with embodiment structure of the present utility model and operating process are illustrated in conjunction with the accompanying drawings.Among the utility model Fig. 2 and Fig. 3, the represented technical characterictic of all unaccounted Reference numerals all with Fig. 1 in identical.
The utility model is applicable to the electrodesalting and electrodehydrating of (comprising crude oil and distillate) of hydrocarbon ils in refinery and the oil field.
Claims (4)
1, a kind of electrical desalting and dehydration equipment, comprise tank body (2), be provided with horizontally disposed electrode (6) in the tank body (2), oil-feed divider (9), tank body (2) is provided with oil inlet pipe (3), oil outlet pipe (7), rising pipe (10), oil outlet pipe (7) is positioned at the top of tank body (2), it is characterized in that: electrode (6) is provided with 2 layers from inside to outside at least, every layer of electrode (6) by superposed arc surface electrode (61) and be positioned at the bottom plane electrode (62) form, at the two ends of tank body (2) an oil-feed divider (9) is set respectively, oil-feed divider (9) links to each other with oil inlet pipe (3), two oil-feed dividers (9) are equipped with circular-arc nozzle (41) and rectangle spout (42), circular-arc nozzle (41) is provided with corresponding to the circular arc space between the arc surface electrode (61) of all adjacent two layers electrodes (6), rectangle spout (42) is provided with corresponding to the planar shaped space between the plane electrode (62) of all adjacent two layers electrodes (6), and described oil outlet pipe (7) is positioned at the middle part of tank body (2) axial length.
2, electrical desalting and dehydration equipment according to claim 1 is characterized in that: described electrode (6) is provided with 2～4 layers.
3, electrical desalting and dehydration equipment according to claim 1 is characterized in that: the mid point that oil outlet pipe (7) is positioned at by tank body (2) axial length moves 500 millimeters formed scopes to the two ends of tank body (2) respectively.
4, electrical desalting and dehydration equipment according to claim 1 is characterized in that: the distance of the circular-arc nozzle (41) of described oil-feed divider (9) and rectangle spout (42) distance electrode (6) end face is-100 millimeters～+ 100 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200893543U CN200999235Y (en) | 2007-01-29 | 2007-01-29 | Electric desalting dewatering equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200893543U CN200999235Y (en) | 2007-01-29 | 2007-01-29 | Electric desalting dewatering equipment |
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| Publication Number | Publication Date |
|---|---|
| CN200999235Y true CN200999235Y (en) | 2008-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200893543U Expired - Fee Related CN200999235Y (en) | 2007-01-29 | 2007-01-29 | Electric desalting dewatering equipment |
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| CN (1) | CN200999235Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746876A (en) * | 2011-04-21 | 2012-10-24 | 中国石油化工股份有限公司 | Electrostatic coalescence crude oil dehydrator |
| CN102994140A (en) * | 2011-09-09 | 2013-03-27 | 中国石油化工股份有限公司 | Crude oil electric desalting and dehydrating device and method |
| CN105733661A (en) * | 2014-12-08 | 2016-07-06 | 中国石油天然气股份有限公司 | Arc curved surface electric field electrical desalter |
-
2007
- 2007-01-29 CN CNU2007200893543U patent/CN200999235Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746876A (en) * | 2011-04-21 | 2012-10-24 | 中国石油化工股份有限公司 | Electrostatic coalescence crude oil dehydrator |
| CN102746876B (en) * | 2011-04-21 | 2014-06-25 | 中国石油化工股份有限公司 | Electrostatic coalescence crude oil dehydrator |
| CN102994140A (en) * | 2011-09-09 | 2013-03-27 | 中国石油化工股份有限公司 | Crude oil electric desalting and dehydrating device and method |
| CN102994140B (en) * | 2011-09-09 | 2015-01-21 | 中国石油化工股份有限公司 | Crude oil electric desalting and dehydrating device and method |
| CN105733661A (en) * | 2014-12-08 | 2016-07-06 | 中国石油天然气股份有限公司 | Arc curved surface electric field electrical desalter |
| CN105733661B (en) * | 2014-12-08 | 2017-09-01 | 中国石油天然气股份有限公司 | Circular arc camber electric-field electric desalting tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: LUOYANG PETROCHEMICAL ENGINEERING CO., CHINA PETROCHEMICAL GROUP CORP. ¬ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Sinopec group Luoyang Petrochemical Engineering Company Number: 01 Page: The title page Volume: 24 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Sinopec group Luoyang Petrochemical Engineering Company Number: 01 Volume: 24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ¬ TO: LUOYANG PETROCHEMICAL ENGINEERING CO., CHINA PETROCHEMICAL GROUP CORP. ¬ |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100029 Beijing City, Chaoyang District Hui Street No. 6 Co-patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Patentee after: China Petrochemical Group Corp. Address before: 100029 Beijing City, Chaoyang District Hui Street No. 6 Co-patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group Patentee before: China Petrochemical Group Corp. |
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| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SINOPEC LUOYANG PETROCHEMICAL ENGINEERING CORPORATION Effective date: 20130327 Owner name: SINOPEC LUOYANG PETROCHEMICAL ENGINEERING CORPORAT Free format text: FORMER OWNER: SINOPEC GROUP Effective date: 20130327 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100029 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: 100029 Beijing City, Chaoyang District Hui Street No. 6 Patentee before: China Petrochemical Group Corp. Patentee before: Luoyang Petrochemical Engineering Corporation /SINOPEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20160129 |
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| EXPY | Termination of patent right or utility model |