CN104419450B - A kind of electro-desalting electric dehydration power-supply device and control method thereof - Google Patents
A kind of electro-desalting electric dehydration power-supply device and control method thereof Download PDFInfo
- Publication number
- CN104419450B CN104419450B CN201310407478.1A CN201310407478A CN104419450B CN 104419450 B CN104419450 B CN 104419450B CN 201310407478 A CN201310407478 A CN 201310407478A CN 104419450 B CN104419450 B CN 104419450B
- Authority
- CN
- China
- Prior art keywords
- input
- output
- negative electrode
- silicon
- thyristor stack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G33/00—Dewatering or demulsification of hydrocarbon oils
- C10G33/02—Dewatering or demulsification of hydrocarbon oils with electrical or magnetic means
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G32/00—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms
- C10G32/02—Refining of hydrocarbon oils by electric or magnetic means, by irradiation, or by using microorganisms by electric or magnetic means
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses a kind of electro-desalting electric dehydration power-supply device and control method thereof, belong to crude oil process field. Described power-supply device comprises: adjustment module, voltage changing module and electro-desalting tank body; The first input end of described adjustment module is connected with the first-phase of three phase mains, the second input of described adjustment module is connected with the second-phase of described three phase mains, the 3rd input of described adjustment module is connected with the third phase of described three phase mains, the output of described adjustment module is connected with the input of described voltage changing module, the output of described voltage changing module is connected with described electro-desalting tank body, make to form electric field in described electro-desalting tank body, to realize, crude oil is carried out to electro-desalting and electric dehydration processing. The present invention has improved the utilization rate of this electro-desalting electric dehydration power-supply device.
Description
Technical field
The present invention relates to crude oil process field, particularly a kind of electro-desalting electric dehydration power-supply device andControl method.
Background technology
In the exploitation of crude oil, generally can in crude oil, add a certain amount of water and emulsifying agent, water and emulsificationAgent can reduce former oil viscosity, and then by oil pumper, crude oil is extracted out. Owing to containing inorganic salts in water,Can there is very large harm in inorganic salts and water, so crude oil first being processed is being needed in Crude Oil ProcessingBy electro-desalting electric dehydration power-supply device, crude oil is carried out to electro-desalting and electric dehydration processing.
At present, electro-desalting electric dehydration power-supply device comprises: transformer, rectifier and electro-desalting tank body, transformationDevice comprises primary coil and two groups of secondary coils, comprises the first pole plate, the second pole plate, in electro-desalting tank bodyTri-electrode and quadripolar plate. The primary coil of transformer is connected with two-phase power supply, one group of secondary wire of transformerCircle is connected with rectifier, and another group secondary coil of transformer is connected with the tri-electrode in electro-desalting tank body.Wherein, the alternating current of one group of secondary coil output of transformer is exported two direct currents after rectifier rectification,Be input to respectively on the first pole plate in electrical desalter and the second pole plate and form DC electric field, another of transformerThe alternating current of group coil output is directly input on the tri-electrode in electrical desalter, makes tri-electrode and the 4thPole plate forms AC field, by the DC electric field in electrical desalter and AC field, crude oil is carried out to electro-desaltingWith electric dehydration processing.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
Along with the increase of oil extraction amount, toward the water injecting in crude oil and emulsifying agent more and more, make crude oilElectrical conductivity is increasing, and then the electric current that makes the two-phase electricity that in electro-desalting electric dehydration power supply, transformer connects alsoIncreasing; In the time that the electric current of the two-phase electricity that in electro-desalting electric dehydration power supply, transformer connects is increasing,The gap of this biphase current and an other phase current is just larger, and three-phase imbalance can be more and more serious, and becomesDepressor connects two-phase power supply, makes the utilization rate of transformer lower.
Summary of the invention
In order to solve the problem of prior art, the embodiment of the present invention provides a kind of electro-desalting electric dehydration power supply to establishStandby and control method. Described technical scheme is as follows:
On the one hand, provide a kind of electro-desalting electric dehydration power-supply device, described power-supply device comprises:
Adjustment module, voltage changing module and electro-desalting tank body;
The first input end of described adjustment module is connected with the first-phase of three phase mains, of described adjustment moduleTwo inputs are connected with the second-phase of described three phase mains, the 3rd input and described three of described adjustment moduleThe third phase of phase power supply connects, and the output of described adjustment module is connected with the input of described voltage changing module,The output of described voltage changing module is connected with described electro-desalting tank body, makes formation electric field in described electro-desalting tank body,To realize, crude oil is carried out to electro-desalting and electric dehydration processing.
Wherein, described adjustment module comprises: the first thyristor stack, the second thyristor stack, the 3rd thyristor stack,Controllable silicon controller, Programmable Logic Controller, current transformer and voltage transformer;
The input of described the first thyristor stack is connected with the first-phase of described three phase mains, described first controlledThe output of silicon stack is connected with the first input end of described voltage changing module, the input of described the second thyristor stackBe connected with the second-phase of described three phase mains, the output of described the second thyristor stack and described voltage changing moduleThe second input connects, and described the 3rd input of thyristor stack and the third phase of described three phase mains are connected,The output of described the 3rd thyristor stack is connected with the 3rd input of described voltage changing module;
Described the first thyristor stack, described the second thyristor stack and described the 3rd thyristor stack respectively with described canControl silicon controller connects, and one end of described Programmable Logic Controller is connected with described controllable silicon controller, described canThe other end of programmable controller is connected with described current transformer, and described current transformer is serially connected in the described the 3rdOn the output of thyristor stack, one end of described voltage transformer is connected across the output of described the second thyristor stackBetween end and the output of described the 3rd thyristor stack, the other end of described voltage transformer and described controllable siliconController connects.
Further, described the first thyristor stack comprises the first controllable silicon and the second controllable silicon, and described second canControl silicon stack comprises the 3rd controllable silicon and the 4th controllable silicon, and described the 3rd thyristor stack comprises the 5th controllable silicon and theSix controllable silicons,
Described the first silicon controlled anode is connected with described the second silicon controlled negative electrode, forms described first controlledThe input of silicon stack, described the first silicon controlled negative electrode and described the second silicon controlled anodic bonding, form instituteState the output of the first thyristor stack;
Described the 3rd silicon controlled anode is connected with described the 4th silicon controlled negative electrode, forms described second controlledThe input of silicon stack, described the 3rd silicon controlled negative electrode and described the 4th silicon controlled anodic bonding, form instituteState the output of the second thyristor stack;
Described the 5th silicon controlled anode is connected with described the 6th silicon controlled negative electrode, forms described the 3rd controlledThe input of silicon stack, described the 5th silicon controlled negative electrode and described the 6th silicon controlled anodic bonding, form instituteState the output of the 3rd thyristor stack.
Wherein, described the first silicon controlled negative electrode is connected with the first negative electrode pin of described controllable silicon controller,The described first silicon controlled control utmost point is controlled pin with first of described controllable silicon controller and is connected, and described secondSilicon controlled negative electrode is connected with the second negative electrode pin of described controllable silicon controller, described the second silicon controlled controlThe utmost point processed is controlled pin with second of described controllable silicon controller and is connected;
Described the 3rd silicon controlled negative electrode is connected with the 3rd negative electrode pin of described controllable silicon controller, and describedThe three silicon controlled control utmost points are controlled pin with the 3rd of described controllable silicon controller and are connected, described the 4th controllable siliconNegative electrode be connected with the 4th negative electrode pin of described controllable silicon controller, described the 4th silicon controlled control utmost point withThe 4th of described controllable silicon controller is controlled pin and is connected;
Described the 5th silicon controlled negative electrode is connected with the 5th negative electrode pin of described controllable silicon controller, and describedThe five silicon controlled control utmost points are controlled pin with the 5th of described controllable silicon controller and are connected, described the 6th controllable siliconNegative electrode be connected with the 6th negative electrode pin of described controllable silicon controller, described the 6th silicon controlled control utmost point withThe 6th of described controllable silicon controller is controlled pin and is connected.
Further, the other end of described voltage transformer and the alternating voltage of described controllable silicon controller feedbackPin connects, one end of described Programmable Logic Controller and the given pin of the voltage of described controllable silicon controller and giveDetermining common port pin connects respectively.
Further, described voltage changing module comprises step-up transformer, the first rectifier, the second rectifier andThree rectifiers;
The first input end of described step-up transformer is connected with the output of described the first thyristor stack, described literThe second input of pressure transformer is connected with the output of described the second thyristor stack, described step-up transformerThe 3rd input is connected with the output of described the 3rd thyristor stack, the first output of described step-up transformerBe connected the second output of described step-up transformer and described second whole with the input of described the first rectifierThe input of stream device connects, the 3rd output of described step-up transformer and the input of described the 3rd rectifierConnect.
Wherein, described the first rectifier comprises the first commutation diode and the second commutation diode, described secondRectifier comprises the 3rd commutation diode and the 4th commutation diode, and described the 3rd rectifier comprises the 5th rectificationDiode and the 6th commutation diode;
The anodic bonding of the negative electrode of described the first commutation diode and described the second commutation diode, described in formationThe input of the first rectifier, the sun of the negative electrode of described the 3rd commutation diode and described the 4th commutation diodeThe utmost point connects, and forms the input of described the second rectifier, the negative electrode of described the 5th commutation diode and described theThe anodic bonding of six commutation diodes, forms the input of described the 3rd rectifier;
The anode of described the first commutation diode, the anode of described the 3rd commutation diode and described the 5th rectificationThe anodic bonding of diode is also input on the negative electrode plate in described electro-desalting tank body, described the second rectification twoThe negative electrode of utmost point pipe, the negative electrode of described the 4th commutation diode are connected also with the negative electrode of described the 6th commutation diodeBe input on the positive electrode plate in described electro-desalting tank body.
On the other hand, provide a kind of control method of electro-desalting electric dehydration power-supply device, described method comprises:
Gather the electric current of the 3rd thyristor stack output, judge whether the electric current gathering is greater than predetermined current;
If the electric current of described collection is greater than described predetermined current, by described the 3rd thyristor stack outputCurrent reduction is to described predetermined current;
Gather the voltage between the output of the second thyristor stack and the output of described the 3rd thyristor stack;
If the voltage of described collection does not reach predeterminated voltage, the controllable silicon that regulates the first thyristor stack to compriseThe angle of flow, the silicon controlled angle of flow and described the 3rd thyristor stack that described the second thyristor stack comprises compriseThe silicon controlled angle of flow, make the output of output and described the 3rd thyristor stack of described the second thyristor stackVoltage between end reaches described predeterminated voltage.
Further, described method also comprises:
If the electric current gathering is less than or equal to described predetermined current, keep the defeated of described Programmable Logic ControllerGo out voltage constant.
Further, described method comprises:
If the electric current of described collection reaches default thresholding, turn-off described power-supply device, and start timing;
In the time that the time of timing reaches Preset Time, reopen described power-supply device.
In embodiments of the present invention, three inputs of adjustment module connect three phase mains, and three phase mains connectsAre all single-phase loads, so, in the time that the electrical conductivity of crude oil is increasing, this electro-desalting electric dehydration power supply is establishedThe electric current of the three phase mains that the adjustment module in standby connects can increase simultaneously, can not cause asking of three-phase imbalanceTopic, and adjustment module connects three phase mains, improved the utilization rate of this electro-desalting electric dehydration power-supply device.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, institute in describing embodiment belowNeed the accompanying drawing using to be briefly described, apparently, the accompanying drawing in the following describes is only the present inventionSome embodiment, for those of ordinary skill in the art, do not paying under the prerequisite of creative work,Can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is a kind of electro-desalting electric dehydration power-supply device apparatus structure schematic diagram that the embodiment of the present invention one provides;
Fig. 2 is the another kind of electro-desalting electric dehydration power-supply device apparatus structure signal that the embodiment of the present invention one providesFigure;
Fig. 3 is a kind of electro-desalting electric dehydration power supply apparatus control method flow chart that the embodiment of the present invention three provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to the present inventionEmbodiment is described in further detail.
Embodiment mono-
The embodiment of the present invention provides a kind of electro-desalting electric dehydration power-supply device, referring to Fig. 1, and this power-supply device bagDraw together: adjustment module 1, voltage changing module 2 and electro-desalting tank body 3;
The first input end of adjustment module 1 is connected with the first-phase a of three phase mains, second of adjustment module 1Input is connected with the second-phase b of three phase mains, of the 3rd input of adjustment module 1 and three phase mainsThree-phase c connects, and the output of adjustment module 1 is connected with the input of voltage changing module 2, voltage changing module 2Output is connected with electro-desalting tank body 3, makes the interior formation electric field of electro-desalting tank body 3, to realize, crude oil is carried outElectro-desalting and electric dehydration processing.
Wherein, in embodiments of the present invention, three inputs of adjustment module 1 connect three phase mains, three-phaseWhat power supply all connect is single-phase load, so, in the time that the electrical conductivity of crude oil is increasing, this electro-desalting electric dehydrationThe electric current of the three phase mains that the adjustment module 1 in power-supply device connects can increase simultaneously, can not cause three-phase notThe problem of balance, and adjustment module 1 connects three phase mains, improved this electro-desalting electric dehydration power-supply deviceUtilization rate.
Wherein, adjustment module 1 comprises: the first thyristor stack 11, the second thyristor stack 12, the 3rd controllable siliconHeap 13, controllable silicon controller 14, Programmable Logic Controller (ProgrammablelogicController, PLC)15, current transformer 16 and voltage transformer 17;
The input of the first thyristor stack 11 is connected with the first-phase a of three phase mains, the first thyristor stack 12Output be connected with the first input end x1 of voltage changing module 2, the input of the second thyristor stack 12 and threeThe second-phase b of phase power supply connects, the second input of the output of the second thyristor stack 12 and voltage changing module 2Y1 connects, and the input of the 3rd thyristor stack 13 is connected with the third phase c of three phase mains, the 3rd thyristor stack13 output is connected with the 3rd input z1 of voltage changing module 2;
The first thyristor stack 11, the second thyristor stack 12 and the 3rd thyristor stack 13 respectively with SCR controlDevice 14 connects, and one end of Programmable Logic Controller 15 is connected with controllable silicon controller 14, Programmable Logic Controller 15The other end be connected with current transformer 16, current transformer 16 is serially connected in the output of the 3rd thyristor stack 13On end, one end of voltage transformer 17 is connected across output and the 3rd thyristor stack of the second thyristor stack 12Between 13 output, the other end of voltage transformer 17 is connected with controllable silicon controller 14.
Wherein, voltage transformer 17 is connected across output and the 3rd thyristor stack 13 of the second thyristor stack 12Output between, for gathering the output of output and the 3rd thyristor stack 13 of the second thyristor stack 12Voltage between end, and the voltage of collection is input in controllable silicon controller 14, closed-loop control formed; CanControl silicon controller 14 compares the voltage of collection and predeterminated voltage, if the voltage gathering reaches default electricityPress, the silicon controlled angle of flow, the second thyristor stack 12 that the first thyristor stack 11 are not comprised compriseThe silicon controlled angle of flow that the silicon controlled angle of flow and the 3rd thyristor stack 13 comprise regulates; If adoptedThe voltage of collection does not reach predeterminated voltage, regulates the silicon controlled angle of flow that the first thyristor stack 11 comprises, theThe silicon controlled conducting that the silicon controlled angle of flow that two thyristor stacks 12 comprise and the 3rd thyristor stack 13 compriseAngle, reaches the voltage between the output of the second thyristor stack 12 and the output of the 3rd thyristor stack 13Predeterminated voltage.
Wherein, the model of controllable silicon controller can be CF6B-5A.
Wherein, the output voltage of controllable silicon controller 14 is 0-5V, when the output electricity of controllable silicon controller 14While pressing as 0V, the first thyristor stack, the second thyristor stack and the 3rd all not conductings of thyristor stack, work as controllable siliconWhen the output voltage of controller 14 is 5V, the first thyristor stack, the second thyristor stack and the 3rd thyristor stackFull conducting.
Wherein, the silicon controlled angle of flow is inversely proportional to this silicon controlled electric current of flowing through, when the silicon controlled angle of flowWhile reducing, this silicon controlled electric current of flowing through increases, in the time that the silicon controlled angle of flow increases, and this controllable silicon of flowing throughElectric current reduce.
Wherein, the voltage between the output of the first thyristor stack 11 and the output of the second thyristor stack 12,Voltage between the output of the output of the second thyristor stack 12 and the 3rd thyristor stack 13 and first controlledVoltage between the output of the output of silicon stack 11 and the 3rd thyristor stack 13 equates.
Wherein, current transformer 16 is serially connected on the output of the 3rd thyristor stack 13, for gathering the 3rdThe electric current of thyristor stack 13 outputs, is input to the electric current of collection in Programmable Logic Controller 15, able to programmeController 15 compares the electric current of collection and predetermined current, if the electric current gathering is greater than predetermined current,By the current reduction of the 3rd thyristor stack 13 outputs to predetermined current, if the electric current gathering is less than or etc.In predetermined current, keep the output voltage of Programmable Logic Controller constant, so realize controllable silicon and literThe control and protection of pressure transformer.
Wherein, Programmable Logic Controller, according to the electric current gathering, carries out the voltage that is input to controllable silicon controllerAdjust, make controllable silicon controller adjust the first thyristor stack, the second thyristor stack and the according to the voltage of inputThe output voltage of three thyristor stacks, to adapt to different crude oil, reaches better treatment effect.
Wherein, in the time that the electric current gathering is greater than predetermined current, Programmable Logic Controller is equivalent to a constant-current source,In the time that the electric current gathering is less than or equal to predetermined current, Programmable Logic Controller is equivalent to a constant pressure source.
Wherein, the electric current of the electric current of the first thyristor stack 11 outputs, the second thyristor stack 12 outputs andThe electric current of the 3rd thyristor stack 13 outputs equates.
Further, referring to Fig. 2, the first thyristor stack 11 comprises the first controllable silicon A+ and the second controllable siliconA-, the second thyristor stack 12 comprises the 3rd controllable silicon B+ and the 4th controllable silicon B-, the 3rd thyristor stack 13 wrapsDraw together the 5th controllable silicon C+ and the 6th controllable silicon C-,
The anode of the first controllable silicon A+ is connected with the negative electrode A-K of the second controllable silicon A-, forms the first controllable siliconThe input of heap 11, the negative electrode A+K of the first controllable silicon A+ and the anodic bonding of the second controllable silicon A-, formThe output of the first thyristor stack 11;
The anode of the 3rd controllable silicon B+ is connected with the negative electrode B-K of the 4th controllable silicon B-, forms the second controllable siliconThe input of heap 12, the negative electrode B+K of the 3rd controllable silicon B+ and the anodic bonding of the 4th controllable silicon B-, formThe output of the second thyristor stack 12;
The anode of the 5th controllable silicon C+ is connected with the negative electrode C-K of the 6th controllable silicon C-, forms the 3rd controllable siliconThe input of heap 13, the negative electrode C+K of the 5th controllable silicon C+ and the anodic bonding of the 6th controllable silicon C-, formThe output of the 3rd thyristor stack 13.
Wherein, the first negative electrode pin 19 of the negative electrode A+K of the first controllable silicon A+ and controllable silicon controller 14Connect, first of the control utmost point A+G of the first controllable silicon A+ and controllable silicon controller 14 controlled pin 20 and connectedConnect, the negative electrode of the second controllable silicon A-K is connected with the second negative electrode pin 21 of controllable silicon controller 14, and secondThe control utmost point A-G of controllable silicon A-controls pin 22 with second of controllable silicon controller 14 and is connected;
The negative electrode B+K of the 3rd controllable silicon B+ is connected with the 3rd negative electrode pin 23 of controllable silicon controller 14,The control utmost point B+G of the 3rd controllable silicon B+ controls pin 24 with the 3rd of controllable silicon controller 14 and is connected, theThe negative electrode B-K of four controllable silicon B-is connected with the 4th negative electrode pin 25 of controllable silicon controller 14, and the 4th is controlledThe control utmost point B-G of silicon B-controls pin 26 with the 4th of controllable silicon controller 14 and is connected;
The negative electrode C+K of the 5th controllable silicon C+ is connected with the 5th negative electrode pin 27 of controllable silicon controller 14,The control utmost point C+G of the 5th controllable silicon C+ controls pin 28 with the 5th of controllable silicon controller 14 and is connected, theThe negative electrode C-K of six controllable silicon C-is connected with the 6th negative electrode pin 29 of controllable silicon controller 14, and the 6th is controlledThe control utmost point C-G of silicon C-controls pin 30 with the 6th of controllable silicon controller 14 and is connected.
Further, the alternating voltage of the other end of voltage transformer 17 and controllable silicon controller 14 feedback is drawnPin 9 is connected respectively with 10, given the drawing of voltage of one end of Programmable Logic Controller 15 and controllable silicon controller 14Pin 13 is connected respectively with given common port pin 15.
Wherein, referring to Fig. 2, voltage changing module 2 comprises step-up transformer 21, the first rectifier 22, second wholeStream device 23 and the 3rd rectifier 24;
The first input end x1 of step-up transformer 21 is connected with the output of the first thyristor stack 11, the change of boostingThe second input y1 of depressor 21 is connected with the output of the second thyristor stack 12, step-up transformer 21The 3rd input z1 is connected with the output of the 3rd thyristor stack 13, the first output of step-up transformer 21X2 is connected with the input of the first rectifier 22, the second output y2 and second rectification of step-up transformer 21The input of device 23 connects, the 3rd output z2 of step-up transformer 21 and the input of the 3rd rectifier 24End connects.
The first rectifier 22 comprises the first commutation diode and the second commutation diode, and the second rectifier 23 wrapsDraw together the 3rd commutation diode and the 4th commutation diode, the 3rd rectifier 24 comprises the 5th commutation diode andSix commutation diodes;
The anodic bonding of the negative electrode of the first commutation diode and the second commutation diode, forms the first rectifier 22Input, the anodic bonding of the negative electrode of the 3rd commutation diode and the 4th commutation diode, forms second wholeThe input of stream device 23, the anodic bonding of the negative electrode of the 5th commutation diode and the 6th commutation diode, formsThe input of the 3rd rectifier 24;
The anode of the anode of the first commutation diode, the anode of the 3rd commutation diode and the 5th commutation diodeConnect and be input on the negative electrode plate in electro-desalting tank body 3, the negative electrode of the second commutation diode, the 4th wholeThe negative electrode of stream diode is connected with the negative electrode of the 6th commutation diode and is input to the positive electricity in electro-desalting tank body 3On pole plate.
Wherein, the anode of the anode of the first commutation diode, the 3rd commutation diode and the 5th commutation diodeAnode all export negative voltage, the negative electrode of the second commutation diode, the negative electrode of the 4th commutation diode and the 6thThe negative electrode of commutation diode is all exported positive voltage, by the anode of the first commutation diode, the 3rd commutation diodeAnode and the anodic bonding of the 5th commutation diode and be input on the negative electrode plate in electro-desalting tank body 3,And by the moon of the negative electrode of the negative electrode of the second commutation diode, the 4th commutation diode and the 6th commutation diodeThe utmost point connects and is input on the positive electrode plate in electro-desalting tank body 3, makes the interior formation high voltage direct of electro-desalting tank body 3Stream electric field, realizes crude oil is carried out to electro-desalting and electric dehydration processing.
In embodiments of the present invention, three inputs of adjustment module connect three phase mains, and three phase mains connectsAre all single-phase loads, so, in the time that the electrical conductivity of crude oil is increasing, this electro-desalting electric dehydration power supply is establishedThe electric current of the three phase mains that the adjustment module in standby connects can increase simultaneously, can not cause asking of three-phase imbalanceTopic, and adjustment module connects three phase mains, improved the utilization rate of this electro-desalting electric dehydration power-supply device.
Embodiment bis-
The embodiment of the present invention provides a kind of method of controlling electro-desalting electric dehydration power-supply device, and the method canElectro-desalting electric dehydration power-supply device described in Fig. 1 and Fig. 2 is controlled, and referring to Fig. 3, the method comprises:
Step 101: gather the electric current of the 3rd thyristor stack output, judge whether the electric current gathering is greater than defaultElectric current;
Step 102: if the electric current gathering is greater than predetermined current, by the electric current of the 3rd thyristor stack outputBe reduced to predetermined current;
Wherein, if the electric current gathering is greater than predetermined current, Programmable Logic Controller can reduce and outputs to controllable siliconThe voltage of controller, controllable silicon controller can reduce the silicon controlled angle of flow in the time that input voltage reduces, therebyReduce silicon controlled output voltage, and then the current reduction of the 3rd thyristor stack output arrived to predetermined current,So, protected step-up transformer.
Step 103: gather the electricity between the output of the second thyristor stack and the output of the 3rd thyristor stackPress;
Step 104: if the voltage gathering does not reach predeterminated voltage, what regulate that the first thyristor stack comprises canWhat the angle of flow of control silicon, the silicon controlled angle of flow that the second thyristor stack comprises and the 3rd thyristor stack comprised canThe angle of flow of control silicon, makes the voltage between the output of the second thyristor stack and the output of the 3rd thyristor stackReach predeterminated voltage.
Wherein, the method also comprises:
If the electric current gathering is less than or equal to predetermined current, keep the output voltage of Programmable Logic Controller notBecome.
Further, the method comprises:
If the electric current gathering reaches default thresholding, power cutoff equipment, and start timing;
In the time that the time of timing reaches Preset Time, reopen this power-supply device.
In embodiments of the present invention, gather the electric current of the 3rd thyristor stack output, according to the electric current gathering,The voltage that is input to controllable silicon controller is adjusted; And gather the output and the of the second thyristor stackVoltage between the output of three thyristor stacks, controllable silicon controller is according to the voltage of input and the voltage of collectionAdjust the output voltage of the first thyristor stack, the second thyristor stack and the 3rd thyristor stack, different to adapt toCrude oil, reaches better treatment effect.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can pass throughHardware completes, and also can carry out the hardware that instruction is relevant by program and complete, and described program can be stored inIn a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only storage, disk orCD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all of the present inventionWithin spirit and principle, any amendment of doing, be equal to replacement, improvement etc., all should be included in of the present inventionWithin protection domain.
Claims (9)
1. an electro-desalting electric dehydration power-supply device, is characterized in that, described power-supply device comprises: regulate mouldPiece, voltage changing module and electro-desalting tank body;
The first input end of described adjustment module is connected with the first-phase of three phase mains, of described adjustment moduleTwo inputs are connected with the second-phase of described three phase mains, the 3rd input and described three of described adjustment moduleThe third phase of phase power supply connects, and the output of described adjustment module is connected with the input of described voltage changing module,The output of described voltage changing module is connected with described electro-desalting tank body, makes formation electric field in described electro-desalting tank body,To realize, crude oil is carried out to electro-desalting and electric dehydration processing;
Wherein, described adjustment module comprises: the first thyristor stack, the second thyristor stack, the 3rd thyristor stack,Controllable silicon controller, Programmable Logic Controller, current transformer and voltage transformer;
The input of described the first thyristor stack is connected with the first-phase of described three phase mains, described first controlledThe output of silicon stack is connected with the first input end of described voltage changing module, the input of described the second thyristor stackBe connected with the second-phase of described three phase mains, the output of described the second thyristor stack and described voltage changing moduleThe second input connects, and described the 3rd input of thyristor stack and the third phase of described three phase mains are connected,The output of described the 3rd thyristor stack is connected with the 3rd input of described voltage changing module;
Described the first thyristor stack, described the second thyristor stack and described the 3rd thyristor stack respectively with described canControl silicon controller connects, and one end of described Programmable Logic Controller is connected with described controllable silicon controller, described canThe other end of programmable controller is connected with described current transformer, and described current transformer is serially connected in the described the 3rdOn the output of thyristor stack, one end of described voltage transformer is connected across the output of described the second thyristor stackBetween end and the output of described the 3rd thyristor stack, the other end of described voltage transformer and described controllable siliconController connects.
2. power-supply device as claimed in claim 1, is characterized in that, described the first thyristor stack comprisesOne controllable silicon and the second controllable silicon, described the second thyristor stack comprises the 3rd controllable silicon and the 4th controllable silicon, instituteState the 3rd thyristor stack and comprise the 5th controllable silicon and the 6th controllable silicon,
Described the first silicon controlled anode is connected with described the second silicon controlled negative electrode, forms described first controlledThe input of silicon stack, described the first silicon controlled negative electrode and described the second silicon controlled anodic bonding, form instituteState the output of the first thyristor stack;
Described the 3rd silicon controlled anode is connected with described the 4th silicon controlled negative electrode, forms described second controlledThe input of silicon stack, described the 3rd silicon controlled negative electrode and described the 4th silicon controlled anodic bonding, form instituteState the output of the second thyristor stack;
Described the 5th silicon controlled anode is connected with described the 6th silicon controlled negative electrode, forms described the 3rd controlledThe input of silicon stack, described the 5th silicon controlled negative electrode and described the 6th silicon controlled anodic bonding, form instituteState the output of the 3rd thyristor stack.
3. power-supply device as claimed in claim 2, is characterized in that, described the first silicon controlled negative electrode withThe first negative electrode pin of described controllable silicon controller connects, the described first silicon controlled control utmost point and described controlledFirst of silicon controller is controlled pin and is connected, described the second silicon controlled negative electrode and described controllable silicon controllerThe second negative electrode pin connects, and second of the described second silicon controlled control utmost point and described controllable silicon controller controlledPin connects;
Described the 3rd silicon controlled negative electrode is connected with the 3rd negative electrode pin of described controllable silicon controller, and describedThe three silicon controlled control utmost points are controlled pin with the 3rd of described controllable silicon controller and are connected, described the 4th controllable siliconNegative electrode be connected with the 4th negative electrode pin of described controllable silicon controller, described the 4th silicon controlled control utmost point withThe 4th of described controllable silicon controller is controlled pin and is connected;
Described the 5th silicon controlled negative electrode is connected with the 5th negative electrode pin of described controllable silicon controller, and describedThe five silicon controlled control utmost points are controlled pin with the 5th of described controllable silicon controller and are connected, described the 6th controllable siliconNegative electrode be connected with the 6th negative electrode pin of described controllable silicon controller, described the 6th silicon controlled control utmost point withThe 6th of described controllable silicon controller is controlled pin and is connected.
4. power-supply device as claimed in claim 1, is characterized in that, the other end of described voltage transformerBe connected one end of described Programmable Logic Controller and institute with the alternating voltage feedback pin of described controllable silicon controllerThe given pin of voltage of stating controllable silicon controller is connected respectively with given common port pin.
5. power-supply device as claimed in claim 1, is characterized in that, described voltage changing module comprises the change of boostingDepressor, the first rectifier, the second rectifier and the 3rd rectifier;
The first input end of described step-up transformer is connected with the output of described the first thyristor stack, described literThe second input of pressure transformer is connected with the output of described the second thyristor stack, described step-up transformerThe 3rd input is connected with the output of described the 3rd thyristor stack, the first output of described step-up transformerBe connected the second output of described step-up transformer and described second whole with the input of described the first rectifierThe input of stream device connects, the 3rd output of described step-up transformer and the input of described the 3rd rectifierConnect.
6. power-supply device as claimed in claim 5, is characterized in that, described the first rectifier comprises firstCommutation diode and the second commutation diode, described the second rectifier comprises the 3rd commutation diode and the 4th wholeStream diode, described the 3rd rectifier comprises the 5th commutation diode and the 6th commutation diode;
The anodic bonding of the negative electrode of described the first commutation diode and described the second commutation diode, described in formationThe input of the first rectifier, the sun of the negative electrode of described the 3rd commutation diode and described the 4th commutation diodeThe utmost point connects, and forms the input of described the second rectifier, the negative electrode of described the 5th commutation diode and described theThe anodic bonding of six commutation diodes, forms the input of described the 3rd rectifier;
The anode of described the first commutation diode, the anode of described the 3rd commutation diode and described the 5th rectificationThe anodic bonding of diode is also input on the negative electrode plate in described electro-desalting tank body, described the second rectification twoThe negative electrode of utmost point pipe, the negative electrode of described the 4th commutation diode are connected also with the negative electrode of described the 6th commutation diodeBe input on the positive electrode plate in described electro-desalting tank body.
7. a method of controlling power-supply device described in claim 1 to 6 any one, is characterized in that instituteThe method of stating comprises:
Gather the electric current of the 3rd thyristor stack output, judge whether the electric current gathering is greater than predetermined current;
If the electric current of described collection is greater than described predetermined current, by described the 3rd thyristor stack outputCurrent reduction is to described predetermined current;
Gather the voltage between the output of the second thyristor stack and the output of described the 3rd thyristor stack;
If the voltage of described collection does not reach predeterminated voltage, the controllable silicon that regulates the first thyristor stack to compriseThe angle of flow, the silicon controlled angle of flow and described the 3rd thyristor stack that described the second thyristor stack comprises compriseThe silicon controlled angle of flow, make the output of output and described the 3rd thyristor stack of described the second thyristor stackVoltage between end reaches described predeterminated voltage.
8. method as claimed in claim 7, is characterized in that, described method also comprises:
If the electric current gathering is less than or equal to described predetermined current, keep the defeated of described Programmable Logic ControllerGo out voltage constant.
9. method as claimed in claim 7, is characterized in that, described method comprises:
If the electric current of described collection reaches default thresholding, turn-off described power-supply device, and start timing;
In the time that the time of timing reaches Preset Time, reopen described power-supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407478.1A CN104419450B (en) | 2013-09-09 | 2013-09-09 | A kind of electro-desalting electric dehydration power-supply device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310407478.1A CN104419450B (en) | 2013-09-09 | 2013-09-09 | A kind of electro-desalting electric dehydration power-supply device and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104419450A CN104419450A (en) | 2015-03-18 |
| CN104419450B true CN104419450B (en) | 2016-06-08 |
Family
ID=52969580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310407478.1A Active CN104419450B (en) | 2013-09-09 | 2013-09-09 | A kind of electro-desalting electric dehydration power-supply device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104419450B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978393B (en) * | 2015-11-26 | 2019-05-21 | 中国石油天然气股份有限公司 | A kind of crude oil electric dewatering high impedance alternating current-direct current superposition high voltage power supply device |
| CN111303935B (en) * | 2020-04-12 | 2024-05-14 | 鞍山国宇恒流源设备有限公司 | Constant current source intelligent control cabinet for crude oil electric dehydration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041036A (en) * | 2009-10-22 | 2011-05-04 | 江苏三星化工有限公司 | Novel high-speed electro-desalting power supply |
| CN103102927A (en) * | 2011-11-09 | 2013-05-15 | 长江(扬中)电脱盐设备有限公司 | Three-phase input and three-phase output electro-desalting power supply |
| CN203112759U (en) * | 2013-03-27 | 2013-08-07 | 北京科安博科技有限公司 | Electric desalting and dehydrating equipment of crude oil |
| CN103248244A (en) * | 2012-02-10 | 2013-08-14 | 长江(扬中)电脱盐设备有限公司 | Three-phase input single output electric desalting power supply |
-
2013
- 2013-09-09 CN CN201310407478.1A patent/CN104419450B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041036A (en) * | 2009-10-22 | 2011-05-04 | 江苏三星化工有限公司 | Novel high-speed electro-desalting power supply |
| CN103102927A (en) * | 2011-11-09 | 2013-05-15 | 长江(扬中)电脱盐设备有限公司 | Three-phase input and three-phase output electro-desalting power supply |
| CN103248244A (en) * | 2012-02-10 | 2013-08-14 | 长江(扬中)电脱盐设备有限公司 | Three-phase input single output electric desalting power supply |
| CN203112759U (en) * | 2013-03-27 | 2013-08-07 | 北京科安博科技有限公司 | Electric desalting and dehydrating equipment of crude oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104419450A (en) | 2015-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107887928A (en) | The control method and device of a kind of energy-storage system | |
| RU2322749C1 (en) | Method for control of multizone rectifier of single-phase alternating current | |
| CN108071600A (en) | Electronic commutation fan system | |
| CN101951073A (en) | Small and medium size wind driven generator | |
| CN104375039A (en) | Testing system for isolation type direct-current transformer | |
| CN102774294A (en) | Energy feedback type traction power supply device based on series compensation transformer | |
| CN104419450B (en) | A kind of electro-desalting electric dehydration power-supply device and control method thereof | |
| CN103546087A (en) | Non-frequency conversion capacitance speed regulation and winding connection circuit of asynchronous motor | |
| CN107769216A (en) | A kind of voltage modulated method for the access of weak AC network | |
| CN105811751B (en) | A kind of unlock startup control method of flexible direct-current transmission converter | |
| CN109301855B (en) | Starting method and system of hybrid high-voltage flexible direct-current power grid | |
| CN107528507B (en) | Current type double-PWM high-performance magnetic suspension high-speed motor control system | |
| CN206340983U (en) | Suppress the device that DC bus-bar voltage is fluctuated in parallel network circuit | |
| CN106982013A (en) | The brushless dual-feed motor arrangements for speed regulation and its control method of high reliability | |
| CN104467513A (en) | Pulse type welder power circuit | |
| CN105171187B (en) | A kind of adjustable electric welding machine of floating voltage | |
| CN203588102U (en) | Three-winding compensation type alternating voltage stabilizing device | |
| Du et al. | Research on uninterrupted power supply technology for auxiliary winding of electric locomotive when passing neutral section | |
| CN103904679B (en) | The control method of high voltage direct current transmission discrete constant current command type current limiting low-voltage unit | |
| CN205709888U (en) | A kind of 72 to rod polycrystalline silicon reduction system | |
| CN104965172B (en) | Converter valve operating test commutation angle regulating device and method | |
| CN201733237U (en) | Graphitization furnace power supply device | |
| CN205430111U (en) | Aerogenerator's control module group | |
| CN204231218U (en) | A kind of voltage-doubler rectification output power supply circuit of step-up transformer | |
| CN105119504B (en) | Generator set rectification device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee after: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee after: PetroChina Co.,Ltd. Address before: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee before: PetroChina Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190524 Address after: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee after: CNPC EAST CHINA DESIGN INSTITUTE CO.,LTD. Patentee after: PetroChina Co.,Ltd. Address before: 100007 Oil Mansion, Oil Mansion, 9 Dongzhimen North Street, Dongcheng District, Beijing. Co-patentee before: CHINA PETROLEUM ENGINEERING & CONSTRUCTION Corp. Patentee before: PetroChina Co.,Ltd. |