CN201933059U - Efficient skid-mounted electric dehydrator device for crude oil - Google Patents
Efficient skid-mounted electric dehydrator device for crude oil Download PDFInfo
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- CN201933059U CN201933059U CN 201120038699 CN201120038699U CN201933059U CN 201933059 U CN201933059 U CN 201933059U CN 201120038699 CN201120038699 CN 201120038699 CN 201120038699 U CN201120038699 U CN 201120038699U CN 201933059 U CN201933059 U CN 201933059U
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Abstract
The utility model discloses an efficient skid-mounted electric dehydrator device for crude oil, which comprises a pressure vessel, a bottom skid and a crude oil inlet/outlet pipeline, a crude oil inlet distributor, a sand washing pipeline, a crude oil collecting tube, an emulsion outlet pipeline, a liquid discharge pipeline, a safety valve pipeline, a sewage discharge pipeline, an emptying hole and an electrode unit arranged in the pressure vessel, wherein an inlet pipeline is communicated with the crude oil inlet distributor arranged at the bottom of a tank; the pressure vessel is horizontal; and the electrode unit comprises a group of vertically suspended electrodes and is connected with a transformer through a high-voltage lead-in device. The pressure vessel, the high-voltage lead-in device, the transformer, an electric control cabinet and the vertically suspended electrode unit form a dehydration electric field system. The efficient skid-mounted electric dehydrator device can solve the technical problems of low electric dehydration efficiency, poor dehydration effect, incompact structure of the skid-mounted device, heteropolar voltage regulation of the electric field voltage, complicated operation and unreliable performance of the traditional electric dehydrator device for the crude oil.
Description
Technical field
The utility model belongs to oil field and refinery crude Treatment technology skid-mounted unit, relates in particular to be fit to the crude oil electric dewatering apparatus that the ocean platform oil treatment system is used.
Background technology
In the crude Treatment system, dehydration method has hot settling process, chemical method, EDN and electrochemical desalting evaporation.Can adopt different methods for crude oil of different nature, but what generally adopt at present is electrochemical method, it is the strong point of the above-mentioned various dehydrating of crude oil modes of collection and make the effective ways the most of crude oil fast dewatering, therefore, electrical dehydrator is one of of paramount importance process unit in the crude Treatment system.Especially for ocean platform crude Treatment system, compact construction, the skid-mounted electrical dehydrator device that collects mechanical, electrical, instrument, pipe arrangement and be one is more suitable for the requirement of console module design-and-build.Traditional crude oil electric dewatering apparatus exists that electro-dewatering efficient is not high, dehydrating effect is bad, and the structure of skid-mounted unit is not compact, and voltage of electric field is for there being technical problems such as utmost point pressure regulation and complicated operation and performance are unreliable.
Summary of the invention
The purpose of this utility model is to provide a kind of efficient skid-mounted crude oil electric dewatering apparatus, the electro-dewatering efficient that traditional crude oil electric dewatering apparatus exists is not high, dehydrating effect is bad to solve, the structure of skid-mounted unit is not compact, and voltage of electric field is for there being technical problems such as utmost point pressure regulation and complicated operation and performance are unreliable.
The utility model realizes that the technical scheme of above-mentioned purpose is: a kind of efficient skid-mounted crude oil electric dewatering apparatus comprises that the crude oil in pressurized vessel, end sledge and the pressurized vessel is imported and exported pipeline, crude oil oil-feed sparger, sand washing pipeline, crude oil collection tube, emulsion relief outlet pipeline, tapping line, safety valve pipeline, blowdown pipeline, drain and electrode unit; Constitute crude oil output channel after the dehydration by oil trap and lead line, constitute oily(waste)water output channel after the dehydration by blowdown pipeline; Be installed in pressure unit on pressure unit mouth, fluid level transmitter mouth, the temperature transmitter mouth, fluid level transmitter, temperature transmitter detection signal is outputed to the DCS system of electric control box by the link box, the DCS system is connected with variable valve on the tapping line; Container top is equipped with low liquid level switch; Inlet line be positioned at jar at the bottom of crude oil oil-feed sparger be communicated with, described pressurized vessel is horizontal placement, described electrode unit is one group of vertically suspended electrode and is connected with transformer by the high pressure introducing device, described pressurized vessel, high pressure introducing device, transformer, electrical control cubicles and vertical bridged electrode unit composition dewatering electric field system.
Described crude oil oil-feed sparger is a dip hatch template structure, is made up of elementary sparger and secondary sparger two portions; Elementary sparger is a circular tube structure, and the top of pipe and side are provided with a row or count the liquid aperture of arranging, and radially place tank body; The secondary sparger is an opening square chest structure, and Open Side Down, and the side is provided with a row or counts the liquid aperture of arranging, and longitudinally places tank body, links to each other with elementary sparger.
Described electrical control cubicles adopts silicon controlled rectifier continuous voltage regulating device to provide stepless voltage regulation for transformer.
The utlity model has efficient use, dehydrating effect is good; The skid-mounted unit compact construction; The system operation of silicon controlled rectifier continuous voltage regulating is simple, and dependable performance also realizes the voltage of electric field stepless pressure regulation and explosion-proof degree of protection advantages of higher.This device especially is fit to the ocean platform oil treatment system to be used.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a crude oil oil-feed structure of distributor synoptic diagram of the present utility model.
Fig. 3 is the elementary structure of distributor synoptic diagram of crude oil oil-feed sparger of the present utility model.
Among the figure: the 1-horizontal pressure vessel, 2-hangs down the liquid level switch mouth, 3-pressure unit mouth, standby mouthful of 4-, 5-crude oil export pipeline mouth, the 6-relief valve port, the 7-drain, 8-high pressure introducing device, the 9-transformer, the 10-manhole, the 11-electrical control cubicles, the 12-saddle, 13-enclosed outfall pipeline mouth, 14-tapping line mouth, 15-crude oil intake pipeline mouth, 16-desanding mouth, sledge at the bottom of the 17-, 18-fluid level transmitter mouth, 19-emulsion discharge outlet, 20-temperature transmitter mouth, the vertical bridged electrode of 21-unit, 22-dip hatch template crude oil oil-feed sparger, the elementary sparger of 22-1-dip hatch template crude oil oil-feed sparger, 22-2-dip hatch template crude oil oil-feed sparger secondary sparger, 23-oil trap and lead line, the 24-thief hole, the 25-cat ladder.
Embodiment
The utility model designs a kind of efficient skid-mounted crude oil electric dewatering apparatus, comprise horizontal pressure vessel, vertical bridged electrode unit, crude oil import and export pipeline, dip hatch template crude oil oil-feed sparger, sand washing pipeline, crude oil collection tube, emulsion relief outlet pipeline, tapping line, safety valve pipeline, blowdown pipeline, drain, high pressure introducing device, transformer, electrical control cubicles, liquid level/water-oil interface detecting unit, the regulon on pressure sensing cell, temperature detecting unit, the tapping line, end sledge etc.Wherein vertically the bridged electrode unit by high pressure fixed link, teflon insulation hang, metal electrode board etc. forms, and forms DC and AC electric field, the reasonable distribution of this electric field makes dewatering efficiency higher; Emulsion relief outlet pipeline is guaranteed the interface control precision, increases the stationarity of operation; Also be provided with detection signal output connection case on the sledge, described liquid level/water-oil interface detecting unit, the detection signal of pressure sensing cell, temperature detecting unit outputs to the DCS system by the link box; The liquid level switch signal that install at the top is directly connected to electrical control cubicles on the sledge, is used for transformer output; Metering orifice plate divider is set in the container, realizes the uniform distribution of crude oil at the bottom of jar; The silicon controlled rectifier continuous voltage regulating device that electrical control cubicles adopts has changed traditional transformer stepping power supply mode, has not only realized electrical dehydrator power supply voltage stepless voltage regulation, simultaneously, when changing appears in base oil properties, also can carry out meticulous control.
Below in conjunction with Fig. 1 the utility model is further specified.
The utility model is that the sledge installing is equipped with.Crude oil enters horizontal pressure vessel 1 through source line 15, dip hatch template crude oil oil-feed sparger 22, and former oil dispenser can absorb crude oil kinetic energy, prevents to stir water-oil interface, makes the crude oil interface more stable.After treating that crude oil is full of container, safe and reliable to operation to guarantee energising by the gas that drain 7 is emitted in the crude oil emptying receptacles.Horizontal pressure vessel 1, high pressure introducing device 8, transformer 9, electrical control cubicles 11, vertically the dewatering electric field system is formed in bridged electrode unit 21, keep stable direct current highfield between the pole plate, then keep one between water termination and shell of tank and the battery lead plate and exchange weak electric field, this electric field can prevent that single DC electric field from causing the container corrosion, wet oil at first passes through to exchange weak electric field after water prewashing at the bottom of the jar, assemble the big water droplet of sedimentation, the oil stream that contains tiny emulsification water droplet enters the direct current highfield again, under the effect of DC electric field, collision is condensed into bigger water droplet, sink to alternating-electric field and condense once more, reach better dehydrating effect.Crude oil after the dehydration by Design of length reasonably prevent to form turbulent oil trap 23, lead line mouth 5 transfers out; Oily(waste)water after the dehydration is through sewage export pipeline mouth, and promptly tapping line mouth 14 or enclosed outfall pipeline mouth 13 are discharged.The pressure unit, fluid level transmitter, the temperature transmitter that are installed on 20 mouthfuls in the pressure unit mouth 3, fluid level transmitter mouth 18-1/2/3/4, temperature transmitter mouth output to the DCS system with detection signal by the link box, the height that conditioning signal that is returned by DCS and the variable valve on the tapping line are regulated water-oil interface is automatically guaranteed dehydrating effect and treatment capacity to guarantee the residence time of water in container; Low liquid level switch 2 that container top is installed and electrical control cubicles 11 constitute securing systems, are going into operation, when shut-down or fault, explosive mixed gas may occur in jar, and securing system starts can't power power supply, in order to avoid because the electric spark of generation causes explosion hazard; Emulsion relief outlet 19-1/2 can on-the-spot discharge, and guarantees the interface control precision, increases the stationarity of operation; The silicon controlled rectifier continuous voltage regulating device that electrical control cubicles 11 adopts has changed traditional transformer stepping power supply mode, has realized the control that becomes more meticulous when changing appears in electrical dehydrator power supply voltage stepless voltage regulation and base oil properties; The desanding pipeline 16 flushable greasy filth impurity of removing tank base; Relief valve port 6 can external safety valve be carried out overpressure protection; In addition, all instrument on the sledge, electricly be explosion-proof, protection type.
Further specify below in conjunction with Fig. 2,3 pairs of the utility model.
Crude oil oil-feed sparger is the initial distribution element of crude oil emulsion in electro-dewatering equipment.The quality of the initial distribution of crude oil emulsion directly has influence on jar degree of uniformity of interior dehydration, and then has influence on the stable operation and the efficient of dehydration equipment.The sparger of reasonable in design can be avoided the formation of jar interior eddy current.
Crude oil oil-feed sparger of the present utility model is made up of elementary sparger 22-1 and secondary sparger 22-2 two portions.Elementary sparger 22-1 is a circular tube structure, and the top of pipe and side are provided with a row or count the liquid aperture of arranging, and radially place tank body.Secondary sparger 22-2 is an opening square chest structure, and Open Side Down, and the side is provided with a row or counts the liquid aperture of arranging, and longitudinally places tank body, links to each other with elementary sparger.In the use, emulsified crude oil at first enters elementary sparger, enters the secondary sparger equably via liquid distributing hole simultaneously at mobile forward.In the secondary sparger, enter a jar internal electric field zone equably via liquid distributing hole simultaneously at mobile forward.Each hole all is subjected to identical differential pressure on the oil-feed sparger of the present invention, so can regulate voluntarily the variation of flow; Emulsion disperses under water-oil interface, through water layer prewashing, can reduce the foreign material that bring; Emulsion axial-radial in the electro-dewatering jar is divided evenly, the emulsion stratified flow is evenly risen, give full play to the weak electric field effect.
Claims (3)
1. an efficient skid-mounted crude oil electric dewatering apparatus comprises that the crude oil in pressurized vessel, end sledge and the pressurized vessel is imported and exported pipeline, crude oil oil-feed sparger, sand washing pipeline, crude oil collection tube, emulsion relief outlet pipeline, tapping line, safety valve pipeline, blowdown pipeline, drain and electrode unit; Constitute crude oil output channel after the dehydration by oil trap and lead line, constitute oily(waste)water output channel after the dehydration by blowdown pipeline; Be installed in pressure unit on pressure unit mouth, fluid level transmitter mouth, the temperature transmitter mouth, fluid level transmitter, temperature transmitter detection signal is outputed to the DCS system of electric control box by the link box, the DCS system is connected with variable valve on the tapping line; Container top is equipped with low liquid level switch; It is characterized in that, inlet line be positioned at jar at the bottom of crude oil oil-feed sparger be communicated with, described pressurized vessel is horizontal placement, described electrode unit is one group of vertically suspended electrode and is connected with transformer by the high pressure introducing device, described pressurized vessel, high pressure introducing device, transformer, electrical control cubicles and vertical bridged electrode unit composition dewatering electric field system.
2. a kind of efficient skid-mounted crude oil electric dewatering apparatus according to claim 1 is characterized in that described crude oil oil-feed sparger is a dip hatch template structure, is made up of elementary sparger and secondary sparger two portions; Elementary sparger is a circular tube structure, and the top of pipe and side are provided with a row or count the liquid aperture of arranging, and radially place tank body; The secondary sparger is an opening square chest structure, and Open Side Down, and the side is provided with a row or counts the liquid aperture of arranging, and longitudinally places tank body, links to each other with elementary sparger.
3. a kind of efficient skid-mounted crude oil electric dewatering apparatus according to claim 1 is characterized in that, described electrical control cubicles adopts silicon controlled rectifier continuous voltage regulating device to provide stepless voltage regulation for transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120038699 CN201933059U (en) | 2011-02-15 | 2011-02-15 | Efficient skid-mounted electric dehydrator device for crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120038699 CN201933059U (en) | 2011-02-15 | 2011-02-15 | Efficient skid-mounted electric dehydrator device for crude oil |
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| Publication Number | Publication Date |
|---|---|
| CN201933059U true CN201933059U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120038699 Expired - Fee Related CN201933059U (en) | 2011-02-15 | 2011-02-15 | Efficient skid-mounted electric dehydrator device for crude oil |
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| CN (1) | CN201933059U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090922A (en) * | 2011-10-27 | 2013-05-08 | 中集船舶海洋工程设计研究院有限公司 | DCS (distributed control system) integrated liquid-level remote sensing system for self-elevating type ocean platform |
| CN110564445A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Skid-mounted crude oil electric desalting device |
| CN115161069A (en) * | 2021-04-06 | 2022-10-11 | 中国石油天然气集团有限公司 | Distributor, oil product dehydration device, oil product dehydration system and method |
-
2011
- 2011-02-15 CN CN 201120038699 patent/CN201933059U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090922A (en) * | 2011-10-27 | 2013-05-08 | 中集船舶海洋工程设计研究院有限公司 | DCS (distributed control system) integrated liquid-level remote sensing system for self-elevating type ocean platform |
| CN110564445A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Skid-mounted crude oil electric desalting device |
| CN115161069A (en) * | 2021-04-06 | 2022-10-11 | 中国石油天然气集团有限公司 | Distributor, oil product dehydration device, oil product dehydration system and method |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20180215 |