CN201113895Y - Oil pumping machine double-power automatic switchover energy-saving electrical distribution box - Google Patents
Oil pumping machine double-power automatic switchover energy-saving electrical distribution box Download PDFInfo
- Publication number
- CN201113895Y CN201113895Y CNU2007201697615U CN200720169761U CN201113895Y CN 201113895 Y CN201113895 Y CN 201113895Y CN U2007201697615 U CNU2007201697615 U CN U2007201697615U CN 200720169761 U CN200720169761 U CN 200720169761U CN 201113895 Y CN201113895 Y CN 201113895Y
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- motor
- star
- protection device
- comprehensive protection
- air switch
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model provides a double-power automatic switching energy saving distribution box for an oil pumping unit. The utility model is characterized in that L11, L21 and L31 of a three-phase input power supply are connected with an air switch(QF) connected with U1, V1 and W1 of a front end of a three-phase winding of a motor, and U2, V2 and W2 of a back end of the motor are connected with a main contact(K2) of a star contactor, and a main contact(K1) of an angular contactor is connected in parallel between the frond end and the back end of the three-phase winding of the motor, which makes K1 and K2 realize the star-angle switching. The double power automatic switching energy saving distribution box has the advantages that the utility model adopts the electronic tracking detection technology and real-time detect the current of the motor, wherein the current is more than the critical current, the triangle (angle) operation is switched; when the current is less than the critical current, the Y(star) operation is switched for starting an energy saving state. By adopting the capacitance reactive compensation, the power factor can be improved by more than 0.75; moreover, the load of the motor is reduced, and the power saving ratio reaches 10 to 30 percent. The utility model is suitably matched with new oil pumping units form Type Three to Type Twelve.
Description
Technical field
This device relates to oil pumper electrical equipment control technical field, and the two power automatic switchover energy-saving distribution boxes of particularly a kind of oil pumper are used for the device that oil-field oil pumper motor distribution is controlled.
Background technology
At present, the operating state of oil field beam pumping unit is divided into carrying on the sucker rod with sucker rod transfers two courses of work, and two course of work circulations are carried out, and need overcome alternate load.Pumping-unit motor need overcome well liquid gravity, sucker rod gravity in the down-hole string when sucker rod moved upward, and the resistance of oil pumper displacement; When sucker rod moved downward, motor of oil extractor well liquid gravity, sucker rod gravity in down-hole string rotated under driving.For putting forward process on the sucker rod, motor is the heavy load process, needs to strengthen supply current; Otherwise sucker rod is transferred process, and motor is the underload process, needs electric current less.In order to make the realistic service load of oil pumper supply current, the supporting power of motor of oil extractor is mostly by designing in light running.Motor low load with strong power phenomenon often appears.Power factor is low, and consumed power is many.
The utility model content
The purpose of this utility model is: provide a kind of oil pumper two power automatic switchover energy-saving distribution boxes, for the oil field motor of beam-pumping unit provides energy-efficient electric power control.Adopt electronics to follow the tracks of detection technique, detect current of electric in real time, during greater than critical current (can set), switch to △ (angle) operation, when electric current less than critical current, switch to Y (star) operation and enter power save mode.Adopt capacitance reactive compensation, can improve power factor more than 0.75.Motor load is light more, and power savings is good more.The merit power saving rate can reach 10-30%.Be applicable to that the new oil pumper of three types to ten, two types is supporting, reduce power consumption, reach the saves energy purpose.Overcome in the motor of beam-pumping unit load alternate process, produce motor low load with strong power phenomenon, cause waste of electric energy.
The technical solution adopted in the utility model is: the two power automatic switchover energy-saving distribution boxes of oil pumper mainly comprise air switch QF, electric current mutual inductance FS, A.C. contactor C, microcomputer time control switch KG, control button SB1, SB2 part.
The major loop part, the connection three phase mains of getting angry of air switch QF, the following fire of air switch QF passes motor star triangle comprehensive protection device (FS) by air switch (QF) and directly links to each other with head end U1, V1, the W1 of motor (M).Terminal U2, V2, the W2 of three phase windings of motor of oil extractor M is connected with star contactor main contacts K2.Be connected with corner connection tentaculum main contacts K1 on the three-phase conducting wire between head end U1, V1, W1 and the motor of oil extractor M of motor three phase windings, the following fire of corner connection tentaculum main contacts K1 is connected on the three-phase wire between motor of oil extractor M and the star contactor main contacts K2.
Control section is connected with microcomputer time control switch KG at power line ground wire N.Motor star triangle comprehensive protection device (FS) inserts the 220V power supply by air switch (QF); start button (SB1) inserts 5 of motor star triangle comprehensive protection device (FS); on 6 terminals; stop button (SB2) inserts 7 of motor star triangle comprehensive protection device (FS); on 8 terminals; change over switch (SA) is connected in parallel with start button SB1; normally closed point one end of star contactor (K2) links to each other with 2 of the terminals of motor star triangle comprehensive protection device (FS); the other end links to each other with the coil of corner connection tentaculum (K1); normally closed point one end of corner connection tentaculum (K1) links to each other with 4 of the terminals of motor star triangle comprehensive protection device (FS), and the other end links to each other with the coil of star contactor (K2).
The two power automatic switchover of oil pumper (intermittently) energy-saving distribution box, has the triangle starting, the star triangle is changed automatically, the motor power (output) that is suitable for different capacity is selected, electric current index and motor operating current are followed the tracks of indication, and have demonstration and memory and intermittent pumping operation function for faults such as the phase failure, overload, stalls.
Oil pumper pair power automatic switchover (intermittently) energy-saving distribution box adopts the microcomputer time control switch intermittently to control the oil pumping operation function, establishes eight groups of times controls, start, and the unused time can be set arbitrarily, and the time control scope was chosen wantonly in 1 minute-168 hours.Manual start is selected.When selecting Auto Power On, but this machine Auto Power On of sending a telegram here again after the power failure is carried out.
The operation principle and the operating process of the two power automatic switchover energy-saving distribution boxes of summary oil pumper:
(1) start:
Automatic power switch QS in a, the closed case, closed capacitor power automatic switch QS2.
B, manual switch is placed desired location, select oil pumper intermittent duty mode, please this switch is placed " manually " position as need, and setting running time.
C, press start button
(2) shut down:
A, press stop button
B, manual switch place manual position
Automatic switch in c, the disjunction case.
The beneficial effects of the utility model: the two power automatic switchover energy-saving distribution boxes of the utility model oil pumper can be finished oil pumper control, and have following characteristics.
1, carries out current tracking control automatically, automaticallyes switch according to the load size.
2, power transfer point load factor can manually be set.
3, joint is got over electric energy, integrated power-saving 28%--34%.
4, the dress capacitance compensation can make power factor (PF) bring up near 1.
5, three-phase voltage, current balance type, stable and reliable operation.
6, have reliable short circuit, the phase failure, overload protection.
7, intermittent pumping operation function is established eight groups of time controls, and the available machine time can be set arbitrarily, time control scope 1 minute-168 hours.
8, manual start is selected, and when selecting Auto Power On, but this machine Auto Power On of sending a telegram here again after the power failure is carried out.
Description of drawings
Fig. 1 is the circuit diagram of the two power automatic switchover energy-saving distribution boxes of oil pumper.
Concrete enforcement
Below in conjunction with drawings and Examples this device is described.
Embodiment 1: consult Fig. 1.The two power automatic switchover energy-saving distribution boxes of oil pumper, air switch QF, model: NM10-100/330.Motor star triangle comprehensive protection device FS, model: SJDB-YS/E.A.C. contactor K1, K2, model: CJ20.Microcomputer time control switch KG, model: KG316T-1.Startup/stop button SB1, SB2, model: NP2.
The major loop part, the connection three phase mains of getting angry of air switch QF, the following fire of air switch QF passes motor star triangle comprehensive protection device (FS) by air switch (QF) and directly links to each other with head end U1, V1, the W1 of oil pumper (M).Terminal U2, V2, the W2 of three phase windings of motor of oil extractor M is connected with star contactor main contacts K2.Be connected with corner connection tentaculum main contacts K1 on the three-phase conducting wire between head end U1, V1, W1 and the motor of oil extractor M of motor three phase windings, the following fire of corner connection tentaculum main contacts K1 is connected on the big line of three-phase between motor of oil extractor M and the star contactor main contacts K2.
Control section is connected with microcomputer time control switch KG at power line ground wire N.Motor star triangle comprehensive protection device (FS) inserts the 220V power supply by air switch (QF); start button (SB1) inserts 5 of motor star triangle comprehensive protection device (FS); on 6 terminals; stop button (SB2) inserts 7 of motor star triangle comprehensive protection device (FS); on 8 terminals; change over switch (SA) is connected in parallel with start button SB1; normally closed point one end of star contactor (K2) links to each other with 2 of the terminals of motor star triangle comprehensive protection device (FS); the other end links to each other with the coil of corner connection tentaculum (K1); normally closed point one end of corner connection tentaculum (K1) links to each other with 4 of the terminals of motor star triangle comprehensive protection device (FS), and the other end links to each other with the coil of star contactor (K2).
Three-phase input power supply L11, L21, L31 connect air switch (QF), air switch (QF) connects head end U1, V1, the W1 of motor three phase windings, motor terminal U2, V2, W2 and star contactor main contacts (K2) link together, corner connection tentaculum main contacts (K1) is parallel to the first and last end of motor three phase windings, makes K1, K2 realize the conversion of star angle.
Control loop: motor star triangle comprehensive protection device (FS) inserts the 220V power supply by air switch (QF); start button (SB1) inserts 5 of motor star triangle comprehensive protection device (FS); on 6 terminals; stop button (SB2) inserts 7 of motor star triangle comprehensive protection device (FS); on 8 terminals; change over switch (SA) is connected in parallel with start button SB1; normally closed point one end of star contactor (K2) links to each other with 2 of the terminals of motor star triangle comprehensive protection device (FS); the other end links to each other with the coil of corner connection tentaculum (K1); normally closed point one end of corner connection tentaculum (K1) links to each other with 4 of the terminals of motor star triangle comprehensive protection device (FS), and the other end links to each other with the coil of star contactor (K2).
Claims (2)
1. two power automatic switchover energy-saving distribution boxes of an oil pumper; mainly comprise air switch QF, motor star triangle comprehensive protection device (FS), A.C. contactor (K1, K2), microcomputer time control switch (KG), startup/stop button (SB1, SB2), it is characterized in that:
The major loop part: air switch (QF) connects three phase mains, air switch (QF) passes the head end U1 of motor star triangle comprehensive protection device (FS) and oil pumper (M) by air switch (QF), V1, W1 directly connects motor of oil extractor M, the head end U1 of three phase windings of motor of oil extractor M, V1, W1 is connected with star contactor main contacts K2, head end U1 at motor three phase windings, V1, be connected with corner connection tentaculum main contacts K1 on the three-phase conducting wire between W1 and the motor of oil extractor M, the following fire of corner connection tentaculum main contacts K1 is connected on the big line of three-phase between motor of oil extractor M and the star contactor main contacts K2;
Control section: be connected with microcomputer time control switch KG at power line ground wire N; motor star triangle comprehensive protection device (FS) inserts the 220V power supply by air switch (QF); start button (SB1) inserts 5 of motor star triangle comprehensive protection device (FS); on 6 terminals; stop button (SB2) inserts 7 of motor star triangle comprehensive protection device (FS); on 8 terminals; change over switch (SA) is connected in parallel with start button SB1; normally closed point one end of star contactor (K2) links to each other with 2 of the terminals of motor star triangle comprehensive protection device (FS); the other end links to each other with the coil of corner connection tentaculum (K1); normally closed point one end of corner connection tentaculum (K1) links to each other with 4 of the terminals of motor star triangle comprehensive protection device (FS), and the other end links to each other with the coil of star contactor (K2).
2. the two power automatic switchover energy-saving distribution boxes of oil pumper according to claim 1, it is characterized in that: three-phase input power supply L11, L21, L31 connect air switch (QF), air switch (QF) connects head end U1, V1, the W1 of motor three phase windings, motor terminal U2, V2, W2 and star contactor main contacts (K2) link together, corner connection tentaculum main contacts (K1) is parallel to the first and last end of motor three phase windings, makes K1, K2 realize the conversion of star angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201697615U CN201113895Y (en) | 2007-07-18 | 2007-07-18 | Oil pumping machine double-power automatic switchover energy-saving electrical distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201697615U CN201113895Y (en) | 2007-07-18 | 2007-07-18 | Oil pumping machine double-power automatic switchover energy-saving electrical distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113895Y true CN201113895Y (en) | 2008-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201697615U Expired - Fee Related CN201113895Y (en) | 2007-07-18 | 2007-07-18 | Oil pumping machine double-power automatic switchover energy-saving electrical distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113895Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867241A (en) * | 2010-06-22 | 2010-10-20 | 沈阳瑞祥风能设备有限公司 | Connecting structure of generator winding of wind generating set and control method |
| CN103546069A (en) * | 2013-09-29 | 2014-01-29 | 国家电网公司 | Novel Y-Deltastarting box |
| CN103944464A (en) * | 2014-04-02 | 2014-07-23 | 常熟市常源变压器有限公司 | Compensation type voltage stabilizer of pumping unit self-starting permanent magnet synchronous motor |
-
2007
- 2007-07-18 CN CNU2007201697615U patent/CN201113895Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867241A (en) * | 2010-06-22 | 2010-10-20 | 沈阳瑞祥风能设备有限公司 | Connecting structure of generator winding of wind generating set and control method |
| CN103546069A (en) * | 2013-09-29 | 2014-01-29 | 国家电网公司 | Novel Y-Deltastarting box |
| CN103944464A (en) * | 2014-04-02 | 2014-07-23 | 常熟市常源变压器有限公司 | Compensation type voltage stabilizer of pumping unit self-starting permanent magnet synchronous motor |
| CN103944464B (en) * | 2014-04-02 | 2016-08-31 | 常熟市常源变压器有限公司 | The compensated voltage regulator of oil pumper self-start permanent magnet synchronous |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 Termination date: 20120718 |