CN2552930Y - Desalt testing device by electric method - Google Patents
Desalt testing device by electric method Download PDFInfo
- Publication number
- CN2552930Y CN2552930Y CN 02259725 CN02259725U CN2552930Y CN 2552930 Y CN2552930 Y CN 2552930Y CN 02259725 CN02259725 CN 02259725 CN 02259725 U CN02259725 U CN 02259725U CN 2552930 Y CN2552930 Y CN 2552930Y
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- Prior art keywords
- crude oil
- electrode
- electrical desalter
- electrostatic desalting
- water filling
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Abstract
The utility model relates to an electrostatic desalting experimental device, comprising an electrostatic desalting pot, and an electrode arranged inside the electrostatic desalting pot, which is characterized in that: a dedicated sealing structure is arranged at the leading-in end of the electrode, with a view to ensure that the electrostatic desalting pot is hermetically sealed and thus leakproof under the conditions like electric field, temperature and pressure by simulating the industrial electrostatic desalting operations. Parallel plate electrodes are led inside the electrostatic desalting pot to generate an electric field with a direction same as the direction of the gravity filed of the precipitation of water drops inside the electrostatic desalting pot, thus eliminating the influence of the electrode plate on the flow of crude oil under the circumstance of experiments; the crude oil feeding of the electrostatic desalting pot adopts a water injection feeding system of relieving and supercharging, so the material can be fed continuously and the experiment can be carried out dynamically. By simulating the whole process of the industrial electrostatic desalting production devices, from the inflow to the outflow of the crude oil into and out of the electrostatic desalting pot, the utility model has the advantages of reproducing the processing conditions on the experimental device, selecting the optimal operation parameters, guiding the production operations and thus facilitating the design of relevant industrial devices.
Description
Technical field
The utility model belongs to a kind of testing apparatus that is used for crude oil electric desalting.
Background technology
Crude oil electric desalting is the important treatment process of oil field with refinery, the quality of desalination degree, directly have influence on the follow up device of crude oil processing, the refinery that particularly needs deep processing, behind the crude oil desalting, require saltiness≤3mg/l, water content≤0.3%, and the refinery that can reach this requirement at present seldom, one of them important reasons is a strength of electric field, the residence time of crude oil in electric field, settling time, emulsion splitter add tret, water injection rate, operating parameterss such as emulsion splitter model can not reach optimization, and at short notice these operating parameterss are optimized, become the problem that presses for solution of production and scientific research.Therefore, the electric desalting test apparatus occurs, be used to finish these work.
There is problem and the shortcoming of some in existing technology, and on June 17th, 1992, disclosed notification number was that the CN2107467U utility model patent is made up of electric desalting device, bath of liquid casing, conductive fluid, well heater, electrical control mechanism etc.Its electric desalting device is a column hollow metal container that is compressed rubber seal by screw thread, the inner vertical metal electrode bar of introducing, insulate with the external metallization housing, form electric field the two poles of the earth, the direction of an electric field that metal shell becomes with metal utmost point clavate is a horizontal direction, vertical with the settled gravity field direction of the globule, the situation difference consistent with the direction of an electric field of industrial electro desalination and globule gravity settling direction is bigger, therefore can not simulate the electric field of industrial electro desalination and test.Introduce use temperature in its utility application file and can reach 200 ℃, but in actual applications, when test temperature is higher than 100 ℃, the pressure that oily G﹠W evaporation produces in the demineralizer, make oil gas or crude oil leakage, water wherein is boiling state, and it is parallel to cause testing data to be difficult to.Generally speaking, the actually operating temperature of the electric desalting apparatus of refinery is all more than 100 ℃, and ceiling temperature can reach 160 ℃, and it can not be used for simulating industrial production temperature and pressure condition and test.It is a kind of evaluating apparatus of static state, can not simulate the industrial dynamics situations such as the residence time in flow velocity under the crude oil flow condition that the industrial electro desalination produces, flow state, the electric field.
Under the prior art condition, inventing the technical barrier that need capture of the dynamic electric desalting evaluating apparatus of a cover is: if the continuous electric desalination evaluating apparatus of the crude oil feeding mode of pumping is adopted in design, on the one hand because water filling crude oil is non-homogeneous dispersion state, can't reach the even of crude oil and water proportioning, on the other hand, crude oil feeding generally all will filter the ability pumping, otherwise the low discharge metering pump that the easy blocking test device of impurity uses, will the emulsification structure of the water filling crude oil that mixed certain proportion water be damaged if filter, therefore, the electric desalting test device of design, the emulsified state of very difficult simulation industrial electro desalted crude.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of electric desalting test device, and the electrical desalter favorable sealing property can also be simulated refinery industrial electro desalination operation, makes the selection that all is optimized of various operating parameterss.
Electric desalting test device of the present utility model, comprise in electrical desalter, the electrical desalter and be provided with electrode, the top that it is characterized in that electrical desalter is provided with sealed structure, sealed structure is made of two vertical electrode conductors, insulated enclosure material, cutting ferrule, nut, straight coupling, hollow ball face seal sleeve pipe, hollow clamping nut, insulated enclosure material, the hollow bolt of nut compressing cutting ferrule extruding outer end compresses sealing sphere sleeve pipe, and electrode conductor is connected with electrode respectively in electrical desalter inside.
The sealing structure can guarantee that sealing is not leaked fully under the electric field of simulation industrial electro desalination operation, temperature, pressure condition.The insulating material of electrode can be selected the macromolecular material of anti-comparatively high temps for use,, can guarantee under working conditions anti-high voltage and not puncturing, anti-comparatively high temps and softening as tetrafluoroethylene, nylon, modified poly ethylene, modified polypropene.
The inner parallel-plate electrode of introducing of electrical desalter, the parallel-plate electrode of introducing are that the good conductor by the electricity of three parallel cylindrical ring flat-plates constitutes, and the middle circle ring flat-plate is electrode one utmost point, and the Circular Plate of upper/lower terminal forms another utmost point.The direction of an electric field that the planar annular parallel plate forms is consistent with the settled gravity field direction of the globule in the electrical desalter, with the direction of an electric field and consistent the adapting of the settled gravity field direction of the globule of industrial electro desalination.The planar annular parallel plate has also prevented the influence of testing apparatus condition lower electrode plate to crude oil flow.
The utility model can connect water filling crude oil basin at the electrical desalter front end, and water filling crude oil basin top connects water filling crude oil decompression-supercharging charging system.Crude oil feeding adopts the water filling crude oil feeding system of decompression-supercharging, can continuously feeding, dynamic testing, the crude oil that can simulate industrial electro desalination production equipment can reproduce the existing processes condition from entering desalter to the top and bottom that flow out desalter on testing apparatus.Described water filling crude oil decompression-supercharging charging system is made of decompression-booster jar, charging valve, loading hopper, pressure release valve, pressure charging valve, feed valve, loading hopper is connected with decompression-booster jar, charging valve is set on connecting pipeline, and decompression-booster jar bottom is provided with feed valve.
Parallel-plate electrode in the electrical desalter can be connected with electrical control mechanism, and electrical control mechanism is mainly used in the strength of electric field of regulating in the electrical desalter with the prior art mode, and can show the value of highfield.
Between water filling crude oil basin and electrical desalter hot oil heater is set, water filling crude oil basin and electrical desalter have sandwich structure, and their Heating temperature is controlled by hot oil heater.
Advantage of the present utility model: compared with prior art, the actual use temperature of the utility model electric desalting test device can reach 200 ℃, the crude oil that can simulate industrial electro desalination production equipment is from entering desalter to the top and bottom that flow out desalter, the existing processes condition can be reproduced on testing apparatus, can be optimized test to the operating parameterss such as tret, water injection rate, emulsion splitter model that add of residence time in power plant of strength of electric field, crude oil, settling time, emulsion splitter, thereby select the optimal operations parameter.Instruct production operation, the design full scale plant.
Description of drawings
Fig. 1 is a kind of structural representation that the utility model is implemented.
Fig. 2 is a kind of crude oil decompression-supercharging charging system structural representation that the utility model is implemented.
Fig. 3 is the semisectional view of a kind of sealed structure of the utility model enforcement.
Fig. 4 is that Fig. 3 is a kind of electrode structure synoptic diagram that the utility model is implemented
Among the figure, 1, electrical desalter; 2, electrical control mechanism; 3, decompression-supercharging charging system; 4, water filling crude oil storage tank; 5, hot oil heater; 6, parallel-plate electrode; 7, sealed structure; 8, decompression-booster jar; 9, charging valve; 10, loading hopper; 11, pressure release valve; 12, pressure charging valve; 13, feed valve; 14, electrode conductor; 15, insulated enclosure material; 16, cutting ferrule; 17, nut; 18, straight coupling; 19, hollow ball face seal sleeve pipe; 20, hollow clamping nut; 21, weak electric field region; 22, strong electric field region; 23, the control valve that discharges water; 24, the control valve of draining the oil; 25 thermal oil pipe connectings; 26 Circular Plate.
Embodiment
Referring to Fig. 1, the utility model is made up of electrical desalter 1, electrical control mechanism 2, decompression-supercharging charging system 3, water filling crude oil storage tank 4, hot oil heater 5.The electrical desalter 1 inner parallel-plate electrode 6 of introducing, the top is provided with sealed structure 7, also connects offlet and drain line on the electrical desalter, has on the offlet oil drain valve 24 is arranged on water drain valve 23, the drain line.Electrical desalter 1 and water filling crude oil storage tank 4 have sandwich structure, interlayer internal recycle thermal oil, and thermal oil carries out temperature control by hot oil heater 5, and the residence time in the electric field and settling time are regulated by oil drain valve 24 apertures.
Referring to Fig. 2, its decompression-supercharging charging system 3 is by being made of decompression-booster jar 8, charging valve 9, loading hopper 10, pressure release valve 11, pressure charging valve 12, feed valve 13.
Referring to Fig. 3, its sealed structure 7 is made of two vertical electrode conductors 14, insulated enclosure material 15, cutting ferrule 16, nut 17, straight coupling 18, hollow ball face seal sleeve pipe 19, hollow clamping nut 20, be added with the insulated enclosure material between two strip electrode conductors, the outer end is respectively the insulated enclosure material, insulated enclosure material 15, hollow bolt 20 that nut 17 compresses cutting ferrule 16 extruding outer ends compress sealing sphere sleeve pipe 19, and electrode conductor 14 is connected with electrode 6 respectively in electrical desalter inside.Preprocess internal thread hole on the tube wall of electrical desalter is provided with the spherical groove trim, and the electrode pad 6 in the electrode conductor 14 of sealed structure 7 and the electrical desalter is connected, and the outside is connected with electrical control mechanism.Sealed structure 7 connects by preprocess internal thread hole on the tube wall of electrical desalter, reaches sealing purpose.Concrete sealing means is that sealed structure 7 adopts nut 17 to compress cutting ferrule 16 extruding insulation sealing materials 15, hollow bolt 20 compresses sealing sphere sleeve pipe 19, reaches the sealing of the soft insulating material of plasticity and the inflexible sealed structure and the desalter tank skin of electrode by this two portions sealing.
Referring to Fig. 4, parallel-plate electrode is made of the good conductor of the electricity of three parallel cylindrical ring flat-plates 26, and the middle circle ring flat-plate is electrode one utmost point, and the Circular Plate of upper/lower terminal forms another utmost point.Weak electric field region 21 in the electrical desalter and strong electric field region 22 are passed through the size of given voltage of two poles and two interpole plate distances and are determined.What the pole plate distance was big is weak electric field region 21, and what the pole plate distance was little is strong electric field region 22, and the ratio of weak electric field region 21 and strong electric field region 22 is determined by experiment, can regulate before test.In process of the test, strength of electric field can be regulated transformer output by electrical control mechanism and be regulated.Electrical control mechanism can show the value (V/cm) of highfield.
During work, earlier electrical desalter 1 is filled it up with water filling crude oil by decompression-supercharging charging system 3, water filling crude oil storage tank 4 adds the water filling crude oil that accounts for about 2/3 volume.Open the heat-conducting oil heating system heating in crude oil, by the time temperature reaches the temperature that needs in the electrical desalter 1.Opening pressure charging valve 12 gives and the certain gaseous tension in water filling crude oil storage tank upper gas space, the desired force value of the system that keeps.Opening the water filling crude oil storage tank stirs.Open oil drain valve 24 and water drain valve 23 on the electrical desalter.Crude oil Automatic water-filling crude oil storage tank 4 middle and lower parts extrude, and to electrical desalter 1 middle and lower part, by weak electric field region 21, strong electric field region 22, depositing in water drops to the bottom and emitted by water drain valve 23, and the crude oil after top dehydration and the salt is emitted by oil drain valve 24 controls, regulates flow.Regulate given highfield 21 values that reach test requirements document of transformer.
In the process of the test, according to sequencing operation filled with water crude oil.At first, can close feed valve 13, close pressure charging valve 12, open pressure release valve 11, open charging valve 9, arrive decompression-booster jar 8 by loading hopper 10 filled with water crude oil.Then, close charging valve 9, close pressure release valve 11, open pressure charging valve 12, open feed valve 13, reinforced to water filling crude oil storage tank 4, long run test.
Claims (5)
1, a kind of electric desalting test device, comprise electrical desalter (1), electrical desalter is provided with electrode in (1), the top that it is characterized in that electrical desalter (1) is provided with sealed structure (7), sealed structure (7) is by two vertical electrode conductors (14), insulated enclosure material (15), cutting ferrule (16), nut (17), straight coupling (18), hollow ball face seal sleeve pipe (19), hollow clamping nut (20) constitutes, nut (17) compresses the insulated enclosure material (15) of cutting ferrule (16) extruding outer end, hollow bolt (20) compresses sealing sphere sleeve pipe (19), and electrode conductor (14) is connected with electrode (6) respectively in electrical desalter inside.
2, testing apparatus according to claim 1, it is characterized in that the inner parallel-plate electrode (6) of introducing of electrical desalter (1), the parallel-plate electrode of introducing (7) is that the good conductor by the electricity of three parallel cylindrical ring flat-plates constitutes, the middle circle ring flat-plate is electrode one utmost point, and the Circular Plate of upper/lower terminal forms another utmost point.
3, testing apparatus according to claim 1 is characterized in that the electrical desalter front end connects water filling crude oil basin (4), and water filling crude oil basin (4) top connects water filling crude oil decompression-supercharging charging system (3).
4, testing apparatus according to claim 3, it is characterized in that described water filling crude oil decompression-supercharging charging system (3) is made of decompression-booster jar (8), charging valve (9), loading hopper (10), pressure release valve (11), pressure charging valve (12), feed valve (13), loading hopper is connected with decompression-booster jar, charging valve is set on connecting pipeline, and decompression-booster jar bottom is provided with feed valve.
5, testing apparatus according to claim 1 is characterized in that between water filling crude oil basin (4) and electrical desalter (1) hot oil heater (5) being set, and water filling crude oil basin (4) has sandwich structure with electrical desalter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02259725 CN2552930Y (en) | 2002-05-09 | 2002-09-25 | Desalt testing device by electric method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02214658.X | 2002-05-09 | ||
| CN02214658 | 2002-05-09 | ||
| CN 02259725 CN2552930Y (en) | 2002-05-09 | 2002-09-25 | Desalt testing device by electric method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2552930Y true CN2552930Y (en) | 2003-05-28 |
Family
ID=34064977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02259725 Expired - Lifetime CN2552930Y (en) | 2002-05-09 | 2002-09-25 | Desalt testing device by electric method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2552930Y (en) |
-
2002
- 2002-09-25 CN CN 02259725 patent/CN2552930Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM & CHEMICAL CORPORATION Free format text: FORMER OWNER: QILU PETROCHEMICAL GROUP CO., CHINA PETROCHEMICAL CORP. Effective date: 20071221 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20071221 Address after: Department of science and technology, Qilu Branch of Sinopec, Linzi District, Shandong, Zibo 255400 Patentee after: Sinopec Corp. Address before: Box 124, Linzi District, Shandong City, Zibo Province, 255400 Patentee before: Qilu Petrochemical Co., China Petrochemical Group Corp. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120925 Granted publication date: 20030528 |