CN203112759U - Electric desalting and dehydrating equipment of crude oil - Google Patents
Electric desalting and dehydrating equipment of crude oil Download PDFInfo
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- CN203112759U CN203112759U CN 201320145505 CN201320145505U CN203112759U CN 203112759 U CN203112759 U CN 203112759U CN 201320145505 CN201320145505 CN 201320145505 CN 201320145505 U CN201320145505 U CN 201320145505U CN 203112759 U CN203112759 U CN 203112759U
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Abstract
The utility model discloses electric desalting and dehydrating equipment of crude oil. The electric desalting and dehydrating equipment is characterized by comprising a pot body, a three-phase power supply and three layers of electrode boards, wherein the three layers of the electrode boards are arrayed in the pot body along a vertical direction; each layer of the electrode boards are extended along a horizontal direction; the electric desalting and dehydrating equipment of the crude oil comprises three sets of electrode boards; each set of the electrode boards comprise three layers of the electrode boards; the setting manner of any one set of the electrode boards is that the three layers of the electrode boards are arrayed in the pot body along the vertical direction, and each layer of the electrode boards are extended along the horizontal direction; the three sets of the electrode boards are arrayed along the horizontal direction; the electrode boards on the same layers of the three sets of the electrode boards are located on the same height; and in one set of the electrode boards in the middle, any one layer of the electrode boards are simultaneously and electrically connected to the other two sets of the electrode boards which are not on the same layer of the any one layer of the electrode boards. The utility model provides the electric desalting and dehydrating equipment which enables the density of an electric field between the electrode boards to be higher, enables the electric field between the electrode boards in the pot to be stable, and enables oil content and salt content of electrically-desalted crude oil to reach standards.
Description
Technical field
The utility model relates to petrochemical complex crude oil upgrading field, particularly relates to a kind of crude oil electric desalting dewatering equipment.
Background technology
Desalting and dewatering is the requisite pretreatment technology of crude oil, refinery employing both at home and abroad all is horizontal electric desalting equipments basically at present, the form of battery lead plate mainly contains horizontal plate type electrode bar and vertical hanging electrode, because power supply difference, in the electrodesalting and electrodehydrating jar, can form alternating-electric field, the alternating current-direct current electric field, pulsed electrical field, high-frequency electric field etc., after the oil-water mixture material enters tank body from electric desalting tank body bottom, under the effect of high-voltage electric field and gravity, realize oily water separation, thereby remove the Yan Heshui in the crude oil, crude oil behind the electrodesalting and electrodehydrating is extracted out from the tank body top, and the water of deposition is discharged from tank base.Along with the continuous expansion of crude oil processing enterprise scale, oil variety constantly increases, and it is bigger that crude quality differs, and causes crude oil electric desalting dewatering device fluctuation of service.
Chinese patent 01201735.3 discloses a kind of high speed electric desalting electro-dewatering equipment, is made up of tank body, three layers of horizontal electrode plate, power source special and horizontal oil-feed divider.The oil-water mixture material evenly is sprayed onto the weak electric field of high-voltage electric field and orlop battery lead plate and water-oil interface formation from horizontal oil-feed divider, utilizes weak electric field that the big water droplet of major part is removed, and then utilizes the High Voltage electric field that fine liquid particles is removed.The triple electrode plate can be connected with positive and negative half-wave high voltage direct current output terminal or the alternating-current output terminal of power supply respectively, forms two high-voltage electric fields and a weak electric field.
Chinese patent 01201753.1 discloses a kind of electric field arrangement of high speed electric desalting electro-dewatering equipment, power supply adopts high speed electric desalting electro-dewatering device-specific power supply, while output AC electricity and positive and negative half-wave high voltage direct current, form DC electric field and alternating-electric field, wherein topmost an electric field forms high-strength electric field, and horizontal oil-feed divider is sprayed onto emulsion in two following electric fields, carries out desalting and dewatering, enter high-strength electric field then, remove more tiny water droplet.Because the stickiness of crude oil, and when the salts contg of processing crude oil was higher, high speed electric desalting electro-dewatering equipment was because the tank body volume is less, and water solution of oil residence time in electric field is shorter, tend to cause that to take off the back crude oil water content higher, desalting effect also can not get guaranteeing.
The utility model content
The purpose of this utility model is to provide a kind of strength of electric field that can make between battery lead plate higher, make electrodesalting and electrodehydrating transformer load balance, in jar between battery lead plate electric field stable, guarantee the normal smooth running of device, make the moisture crude oil electric desalting dewatering equipment up to standard of salt content in crud oil behind the electrodesalting and electrodehydrating.
The technical scheme that the utility model provides is:
A kind of crude oil electric desalting dewatering equipment is characterized in that, comprising:
Tank body, its ground connection;
The three phase supply power supply; And
The triple electrode plate, described triple electrode plate vertically is arranged in the described tank body, and each layer motor plate prolongs the second month in a season with horizontal direction;
Wherein, the three-phase of described three phase supply power supply is electrically connected with described triple electrode plate respectively, so that all produce highfield between the adjacent two layers battery lead plate, and makes between one deck battery lead plate below and the earth and produces weak electric field.
Preferably, described crude oil electric desalting dewatering equipment comprises three groups of battery lead plates; Every group of battery lead plate comprises the triple electrode plate, and the set-up mode of arbitrary group of battery lead plate is: the triple electrode plate vertically is arranged in the described tank body.And each layer battery lead plate extends with horizontal direction; Three groups of battery lead plate along continuous straight runs are arranged, and the battery lead plate that is positioned at one deck of three groups of battery lead plates is positioned on the identical height, one group of battery lead plate in the middle of being arranged in.Arbitrary layer of battery lead plate is electrically connected to simultaneously in other the two arrays of electrodes plate with it and do not belong to battery lead plate with one deck.
Preferably, all battery lead plates all have area identical.
Preferably, the three-phase of described three phase supply power supply is electrically connected with the battery lead plate that is positioned at the top of described three groups of battery lead plates respectively.
Preferably, each of described three phase supply power supply is electrically connected to a single phase ac high-tension transformer mutually respectively, and the high-voltage output end of transformer is electrically connected to the wherein one deck battery lead plate that is positioned at the top of one group of battery lead plate.
Preferably, transformer is that output voltage is 16KV.22KV。The transformer of 28KV, 34KV, 4OKV.
Preferably, the material of three groups of battery lead plates is carbon steel material or is stainless steel.
Preferably, arbitrary layer of battery lead plate of arbitrary group of battery lead plate hung inside at described tank body by web member, and the material of web member is the tetrafluoroethylene material.
Preferably, the bottom of described tank body is provided with liquid-inlet pipe and water shoot.
Crude oil electric desalting dewatering equipment described in the utility model, because what adopt is the three phase supply power supply, be line voltage between every two-layer battery lead plate, greater than the used phase voltage of conventional electric desalting apparatus, can make between battery lead plate strength of electric field higher, more be conducive to the coalescent of crude oil small water droplets, improve the dehydration rate of crude oil.Because every layer of battery lead plate position difference in jar, power consumption is different, cause the load of every layer of battery lead plate also different, adopt the mode of connection of three groups of battery lead plates of the present utility model, every single-phase high voltage AC transformer is electrically connected with upper, middle and lower layer battery lead plate in three groups of battery lead plates respectively, when making the device operation, three single-phase high voltage AC transformer loads are basic identical, therefore each phase load balance of power supply makes between jar interior battery lead plate electric field stablize, and guarantees the normal smooth running of device.In addition, three groups of battery lead plates adopt mode of connection of the present utility model in the crude oil electric desalting dewatering equipment, when wherein 1 or 2 single-phase high voltage AC transformers break down, still can guarantee to have between battery lead plate electric field to exist, and are conducive to the steady running of device.For above-mentioned reasons, adopt electrical desalting and dehydration equipment described in the utility model, after the electric desalting salt content of crude oil one be not more than 3mg/L, water content is not more than 0.2%.By in tank body, arranging three groups of battery lead plates, enlarged a jar internal electric field space, and electric field distributes evenly, so can treatment capacity the crude oil of big (as ten-million-ton scale).The utility model is applicable to that treatment capacity is more than 1,000,000 tons/year, be particularly useful for handling more than 3,000,000 tons/year the crude oil electric desalting dewatering device.
Description of drawings
Fig. 1 is the structural representation of crude oil electric desalting dewatering equipment described in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, can implements according to this with reference to the specification sheets literal to make those skilled in the art.
As shown in Figure 1, the utility model provides a kind of crude oil electric desalting dewatering equipment, comprising: tank body 1, the bottom of tank body 1 are provided with oil inlet pipe 5, oil dispenser 10, water shoot 6, and the top is provided with oil outlet pipe 7, crude oil condensing funnel 11.
Be provided with the triple electrode plate from bottom to top successively from the tank body middle part in the tank body, the triple electrode plate vertically is arranged in the described tank body, and each layer battery lead plate extends with horizontal direction; Jar arranges three groups of such triple electrode plates in stopping, and first group comprises upper electrode plate 21, middle level battery lead plate 22, lower electrode plate 23; Second group comprises upper electrode plate 31, middle level battery lead plate 32, lower electrode plate 33; The 3rd group comprises upper electrode plate 41, middle level battery lead plate 42, lower electrode plate 43.
Every electrodesalting and electrodehydrating jar arranges three single-phase high voltage AC transformers, and three single-phase high voltage AC transformers are connected with three of three-phase supply respectively.Single-phase high voltage AC transformer 81 is electrically connected with upper electrode plate 21 in first group, battery lead plate 21 is electrically connected with middle level battery lead plate 32 in second group, battery lead plate 32 is electrically connected with lower electrode plate 43 in the 3rd group, makes battery lead plate 21, battery lead plate 32, battery lead plate 43 electromotive forces identical; Single-phase high voltage AC transformer 82 is electrically connected with upper electrode plate 31 in second group, the left side of battery lead plate 31 is electrically connected with lower electrode plate 23 in first group, the right side of battery lead plate 31 is electrically connected with middle level battery lead plate 42 in the 3rd group, makes battery lead plate 23, battery lead plate 31, battery lead plate 42 electromotive forces identical; Single-phase high voltage AC transformer 83 is electrically connected with upper electrode plate 41 in the 3rd group, battery lead plate 41 is electrically connected with lower electrode plate 33 in second group, middle level battery lead plate 22 in first group of battery lead plate 33 and the battery lead plate is electrically connected, and makes battery lead plate 22, battery lead plate 33, battery lead plate 41 electromotive forces identical.Form two high-voltage electric fields and a weak electric field like this.
Three groups of battery lead plates are hung 9 by web member respectively and are connected with the inwall of tank body 1.
Its working process is:
Saliferous, moisture crude oil and emulsion splitter, a certain amount of water mixing enters in the oil dispenser 10 by oil inlet pipe 5, after distributing, oil dispenser 10 enters equably in the tank body 1, and ask mobile, at first enter in the weak electric field that forms between lower electrode plate 23, battery lead plate 33, battery lead plate 43 and the water-oil interface 12 by water-oil interface 12, in this electric field, most water droplet is removed.Afterwards, crude oil upwards flows, enter in the high-voltage electric field between middle level battery lead plate and the lower electrode plate, be battery lead plate 22 and battery lead plate 23, battery lead plate 32 and battery lead plate 33, in the high-voltage electric field between battery lead plate 42 and the battery lead plate 43, in this high-voltage electric field, little water droplet is agglomerated into big water droplet behind electric field polarization, settlement separate come out then, crude oil upwards flows in the high-voltage electric field between upper electrode plate and the middle level battery lead plate more then, be battery lead plate 21 and battery lead plate 22, battery lead plate 31 and battery lead plate 32, in the high-voltage electric field between battery lead plate 41 and the battery lead plate 42, in this high-voltage electric field, the little water droplet that does not spin off in the oil can be agglomerated into big water droplet through electric field polarization by Ran Yici, settlement separate come out then, enter at last in the space between tank body 1 inwall of upper electrode plate 21,31,41 and the side of being located thereon.Come together in crude oil in this space and be the cleaned crude oil behind the electrodesalting and electrodehydrating, the crude stream behind the desalting and dewatering is extracted out by oil outlet pipe 7 at last through crude oil condensing funnel 11.In the said process, coalescent brackish water drops under the action of gravity and precipitates downwards in each electric field, is deposited on by water-oil interface in the water layer of water-oil interface below, and the water in the water layer is discharged by water shoot 6 at last.
Although oneself is open as above for embodiment of the present utility model, but it is not restricted to listed utilization in specification sheets and the embodiment, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend of describing.
Claims (9)
1. a crude oil electric desalting dewatering equipment is characterized in that, comprising:
Tank body, its ground connection;
The three phase supply power supply; And
The triple electrode plate, described triple electrode plate vertically is arranged in the described tank body, and each layer motor plate extends with horizontal direction;
Wherein, the three-phase of described three phase supply power supply is electrically connected with described triple electrode plate respectively, so that all produce highfield between the adjacent two layers battery lead plate, and makes between one deck battery lead plate below and the earth and produces weak electric field.
2. crude oil electric desalting dewatering equipment as claimed in claim 1 is characterized in that,
Described crude oil electric desalting dewatering equipment comprises three groups of battery lead plates;
Every group of battery lead plate comprises the triple electrode plate, and the set-up mode of arbitrary group of battery lead plate is: the triple electrode plate is arranged in the described tank body along hundred directions of hanging down, and each layer battery lead plate extends with horizontal direction;
Three groups of battery lead plate along continuous straight runs are arranged, and the battery lead plate that is positioned at one deck of three groups of battery lead plates is positioned on the identical height, and one group of battery lead plate in the middle of being arranged in, arbitrary layer of battery lead plate are electrically connected to simultaneously in other the two arrays of electrodes plate with it and do not belong to battery lead plate with one deck.
3. crude oil electric desalting dewatering equipment as claimed in claim 2 is characterized in that, all battery lead plates all have area identical.
4. crude oil electric desalting dewatering equipment as claimed in claim 3 is characterized in that, the three-phase of described three phase supply power supply is electrically connected with the battery lead plate that is positioned at the top of described three groups of battery lead plates respectively.
5. crude oil electric desalting dewatering equipment as claimed in claim 4, it is characterized in that, each of described three phase supply power supply is electrically connected to a single phase ac high-tension transformer mutually respectively, and the high-voltage output end of transformer is electrically connected to the wherein one deck battery lead plate that is positioned at the top of one group of battery lead plate.
6. crude oil electric desalting dewatering equipment as claimed in claim 5 is characterized in that, transformer is that output voltage is the transformer of 16KV, 22KV, 28KV, 34KV, 40KV.
7. crude oil electric desalting dewatering equipment as claimed in claim 6 is characterized in that, the material of three groups of battery lead plates is carbon steel material or is stainless steel.
8. crude oil electric desalting dewatering equipment as claimed in claim 7 is characterized in that, arbitrary layer of battery lead plate of arbitrary group of battery lead plate hung inside at described tank body by web member, and the material of web member is the tetrafluoroethylene material.
9. crude oil electric desalting dewatering equipment as claimed in claim 7 is characterized in that, the bottom of described tank body is provided with liquid-inlet pipe and water shoot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145505 CN203112759U (en) | 2013-03-27 | 2013-03-27 | Electric desalting and dehydrating equipment of crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320145505 CN203112759U (en) | 2013-03-27 | 2013-03-27 | Electric desalting and dehydrating equipment of crude oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203112759U true CN203112759U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320145505 Expired - Fee Related CN203112759U (en) | 2013-03-27 | 2013-03-27 | Electric desalting and dehydrating equipment of crude oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203112759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104419450A (en) * | 2013-09-09 | 2015-03-18 | 中国石油天然气股份有限公司 | Electric desalting and electric dewatering power supply equipment and control method thereof |
| 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 |
-
2013
- 2013-03-27 CN CN 201320145505 patent/CN203112759U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104419450A (en) * | 2013-09-09 | 2015-03-18 | 中国石油天然气股份有限公司 | Electric desalting and electric dewatering power supply equipment and control method thereof |
| CN104419450B (en) * | 2013-09-09 | 2016-06-08 | 中国石油天然气股份有限公司 | Electric desalting and electric dewatering power supply equipment and control method thereof |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |