CN201616807U - Motor control device for permanent-magnet motor direct-driving screw-pump oil extractor - Google Patents
Motor control device for permanent-magnet motor direct-driving screw-pump oil extractor Download PDFInfo
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- CN201616807U CN201616807U CN2010201441189U CN201020144118U CN201616807U CN 201616807 U CN201616807 U CN 201616807U CN 2010201441189 U CN2010201441189 U CN 2010201441189U CN 201020144118 U CN201020144118 U CN 201020144118U CN 201616807 U CN201616807 U CN 201616807U
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Abstract
The utility model relates to screw-pump oil extractors, in particular to a motor control device for a permanent-magnet motor direct-driving screw-pump oil extractor, which can ensure the normal operation of the permanent-magnet motor direct-driving screw-pump oil extractor. The device comprises a frequency converter, a switch, a power-off time delay relay, a power-on time delay relay, a contactor, input/output wiring terminals, and a resistance braking circuit, wherein the switch is connected in series with the power-off time delay relay and is connected in series between the wiring terminal on any output side of a breaker and the wiring terminal of a neutral line in the input wiring terminal; a power-off time delay normally open contact, a normally closed contact in a fault trigger contact inside the frequency converter and the contactor are connected in series, and are connected in parallel with a series branch circuit of the power-off time delay relay; the two time delay relays are connected in parallel; a power-on time delay normally open contact is connected in series between the operational control terminal and the common terminal of the frequency converter; and a variable resistor provided with a slip sheet connected with the frequency setting input terminal of the frequency converter is connected in series between the power terminal and the grounding terminal of the frequency converter. The device has the advantages of reasonable and simple structure, convenient control and good using effect.
Description
Technical field
The utility model relates to the screw pump oil pumper, specifically is a kind of motor control assembly of magneto direct-drive type screw pump oil pumper.
Background technology
Present stage, the screw pump oil pumper that each elephant uses in oil producing operation production mainly contains two kinds of type of drive: y series motor+mechanical reducer drive-type, the direct drive-type of permanent magnet AC motor.
Wherein, the drive principle of y series motor+mechanical reducer drive-type screw pump oil pumper mainly comprises y series motor 1, belt 2, belt pulley 3, gear box reduction box 4, screw pump oil pumper 5 as shown in Figure 1.Y series motor needs 380 volts AC power stable power-supplyings, uses discovery through long-term, has that speed governing difficulty, efficient are low, shortcomings such as reduction box easy oil leakage, volume are big, working service inconvenience.
And the screw pump oil pumper of the direct drive-type of permanent magnet AC motor needs special supporting special control system ability operate as normal.Function such as resistance damping brake in the time of must possessing the flexible permanent torque varying frequency starting of the permanent magnet AC motor of making, orderly closedown or accident power-off.
Summary of the invention
The utility model is in order to guarantee the screw pump oil pumper operate as normal of the direct drive-type of permanent magnet AC motor; and function such as resistance damping brake when possessing the flexible permanent torque varying frequency starting of permanent magnet AC motor, orderly closedown or accident power-off, a kind of motor control assembly of magneto direct-drive type screw pump oil pumper is provided.
The utility model is to adopt following technical scheme to realize: the motor control assembly of magneto direct-drive type screw pump oil pumper, comprise magneto special converter UF, start-stop switch S T, power-off delay relay KT1, energization delay relay KT2, contactor KM, be used for the input wires terminal A that is connected with the three-phase and four-line transmission line, B, C, N, be used for the output wiring terminal U1 that is connected with magneto M1, V1, W1, and through contactor KM normally-closed contact and output wiring terminal U1, V1, the resistance braking circuit that W1 connects, the three-phase alternating current 380V input terminal R of magneto special converter UF, S, the three-phase terminal A of T in circuit breaker Q F1 and input wires terminal, B, C links to each other, three-phase alternating current lead-out terminal U, V, W is through normally opened contact and the output wiring terminal U1 of contactor KM, V1, W1 links to each other, start-stop switch S T connects with power-off delay relay KT1 and forms series arm, and is connected between the arbitrary outlet side binding post and the neutral line binding post N in the input wires terminal of circuit breaker Q F1; Normally-closed contact, contactor KM series connection that the outage time-delay normally opened contact of power-off delay relay KT1, magneto special converter UF internal fault trigger in the contact form series arm, and in parallel with the series arm of start-stop switch S T, power-off delay relay KT1; Energization delay relay KT2 is in parallel with power-off delay relay KT1; The on-delay normally opened contact of energization delay relay KT2 is series between the operation control terminal FWD and public terminal COM of magneto special converter UF; Be in series with speed governing variable resistance RP between the power supply terminal VRF of magneto special converter UF and the earth terminal GND, the slide plate of variable resistance RP links to each other with the aanalogvoltage frequency setting input terminal VCI of magneto special converter UF; Described magneto special converter UF can directly be buied by market or producer.
Also comprise being used for output wiring terminal U2, the V2, the W2 that are connected with axial flow blower M2, output wiring terminal U2, V2, W2 link to each other with the outlet side binding post of circuit breaker Q F1 through circuit breaker Q F2.
Described resistance braking circuit is to constitute with brake resistance R1, R2, R3 that delta connection connects, and in order to consume the electric energy that sends when magneto M1 transfers the generator operating mode to, the countertorque of utilizing magneto to produce is slowed down the screw pump oil pumper.Brake resistance R1, R2, R3 adopt the advantage of delta connection: when any blew in three resistance, three-phase circuit can also constitute the loop by remaining two resistance, guaranteed braking power.
Before using motor control assembly described in the utility model, at first input wires terminal A, B, C, the N with this device is connected with the three-phase and four-line transmission line, output wiring terminal U1, V1, W1 are connected with the magneto M1 of magneto direct-drive type screw pump oil pumper, and output wiring terminal U2, V2, W2 are connected with axial flow blower M2.
Operation principle is described below:
1, normal starting: close circuit breaker QF1, QF2, closed start-stop switch S T, power-off delay relay KT1, energization delay relay KT2 get electric, the normally opened contact closure of power-off delay relay KT1, contactor KM gets electric, and the normally opened contact closure of contactor KM, normally-closed contact disconnect; The normally opened contact timing closing of energization delay relay KT2, magneto special converter UF starts working, and makes the flexible permanent torque varying frequency starting of magneto M1; By regulating variable resistance RP, change the input of magneto special converter UF aanalogvoltage frequency setting input terminal VCI, adjust magneto special converter UF output voltage, realize speed governing to magneto M1.
2, orderly closedown: disconnect start-stop switch S T, power-off delay relay KT1, energization delay relay KT2 dead electricity, the normally opened contact of energization delay relay KT2 disconnects, and frequency converter stops output, and magneto M1 slows down; The normally opened contact time-delay of power-off delay relay KT1 disconnects, contactor KM dead electricity, and the normally opened contact of contactor KM disconnects, the normally-closed contact closure, and magneto M1 is linked to each other with the resistance braking circuit, realizes resistance braking.
3, the protection of breaking down: UF breaks down as the magneto special converter; the normally-closed contact that its internal fault triggers in the contact disconnects, contactor KM dead electricity, and the normally opened contact of contactor KM disconnects, the normally-closed contact closure; magneto M1 is linked to each other with the resistance braking circuit, realize resistance braking.
4, device accident power-off: contactor KM dead electricity, the normally opened contact of contactor KM disconnects, the normally-closed contact closure, and magneto M1 is linked to each other with the resistance braking circuit, realizes resistance braking.
Compared with prior art, the utlity model has following advantage: 1, can control magneto and directly will export transmission of torque to screw pump, complicated belt speed reduction gearing, gear box, mechanical anti-reverse brake mechanism that existing y series motor+mechanical reducer drive-type screw pump oil pumper adopts have been saved, volume is little, worries such as gear reduction box leakage of oil have been removed from, repair and maintenance is convenient, and maintenance capacity is little; 2, can carry out the on-line parameter adjustment by magneto special converter UF, speed change work has been avoided manually changing repeatedly the belt pulley speed change and has been transferred ginseng, has reduced labour intensity, has improved the utilization rate of equipment; 3, can control the flexible permanent torque starting of magneto, can set up friendly man-machine interface by Configuration Control Unit, and realize that overvoltage, overcurrent, short circuit, phase shortage, overload, system's temperature rise are too high, defencive function such as low insulated; 4, the braking of screw pump adopts the brake resistance of " Δ " shape connection to carry out resistance braking, good braking effect, and the function of realization resistance damping brake when orderly closedown or accident power-off prevents screw rod reversing dropout.
The utility model is rational in infrastructure, succinct; control conveniently; result of use is good, can stably control magneto and directly drive oil-pumping screw pump work, function such as resistance damping brake when realizing the flexible permanent torque varying frequency starting of screw pump oil pumper, orderly closedown or accident power-off.
Description of drawings
Fig. 1 is the drive principle figure of existing y series motor+mechanical reducer drive-type screw pump oil pumper;
Fig. 2 is circuit theory diagrams of the present utility model;
Among the figure: the 1-Y serial motors; The 2-belt; The 3-belt pulley; 4-gear box reduction box; 5-screw pump oil pumper.
Embodiment
As shown in Figure 2, the motor control assembly of magneto direct-drive type screw pump oil pumper, comprise magneto special converter UF, start-stop switch S T, power-off delay relay KT1, energization delay relay KT2, contactor KM, be used for the input wires terminal A that is connected with the three-phase and four-line transmission line, B, C, N, be used for the output wiring terminal U1 that is connected with magneto M1, V1, W1, and through contactor KM normally-closed contact and output wiring terminal U1, V1, the resistance braking circuit that W1 connects, the three-phase alternating current 380V input terminal R of magneto special converter UF, S, the three-phase terminal A of T in circuit breaker Q F1 and input wires terminal, B, C links to each other, three-phase alternating current lead-out terminal U, V, W is through normally opened contact and the output wiring terminal U1 of contactor KM, V1, W1 links to each other, start-stop switch S T connects with power-off delay relay KT1 and forms series arm, and is connected between the arbitrary outlet side binding post and the neutral line binding post N in the input wires terminal of circuit breaker Q F1; Normally-closed contact, contactor KM series connection that the outage time-delay normally opened contact of power-off delay relay KT1, magneto special converter UF internal fault trigger in the contact form series arm, and in parallel with the series arm of start-stop switch S T, power-off delay relay KT1; Energization delay relay KT2 is in parallel with power-off delay relay KT1; The on-delay normally opened contact of energization delay relay KT2 is series between the operation control terminal FWD and public terminal COM of magneto special converter UF; Be in series with speed governing variable resistance RP between the power supply terminal VRF of magneto special converter UF and the earth terminal GND, the slide plate of variable resistance RP links to each other with the aanalogvoltage frequency setting input terminal VCI of magneto special converter UF.
Also comprise being used for output wiring terminal U2, the V2, the W2 that are connected with axial flow blower M2, output wiring terminal U2, V2, W2 link to each other with the outlet side binding post of circuit breaker Q F1 through circuit breaker Q F2.
Described resistance braking circuit is to constitute with brake resistance R1, R2, R3 that delta connection connects.
During concrete enforcement, magneto special converter UF selects low-speed big magneto special converter.
Claims (3)
1. the motor control assembly of a magneto direct-drive type screw pump oil pumper, it is characterized in that: comprise magneto special converter UF, start-stop switch S T, power-off delay relay KT1, energization delay relay KT2, contactor KM, be used for the input wires terminal A that is connected with the three-phase and four-line transmission line, B, C, N, be used for the output wiring terminal U1 that is connected with magneto M1, V1, W1, and through contactor KM normally-closed contact and output wiring terminal U1, V1, the resistance braking circuit that W1 connects, the three-phase alternating current 380V input terminal R of magneto special converter UF, S, the three-phase terminal A of T in circuit breaker Q F1 and input wires terminal, B, C links to each other, three-phase alternating current lead-out terminal U, V, W is through normally opened contact and the output wiring terminal U1 of contactor KM, V1, W1 links to each other, start-stop switch S T connects with power-off delay relay KT1 and forms series arm, and is connected between the arbitrary outlet side binding post and the neutral line binding post N in the input wires terminal of circuit breaker Q F1; Normally-closed contact, contactor KM series connection that the outage time-delay normally opened contact of power-off delay relay KT1, magneto special converter UF internal fault trigger in the contact form series arm, and in parallel with the series arm of start-stop switch S T, power-off delay relay KT1; Energization delay relay KT2 is in parallel with power-off delay relay KT1; The on-delay normally opened contact of energization delay relay KT2 is series between the operation control terminal FWD and public terminal COM of magneto special converter UF; Be in series with speed governing variable resistance RP between the power supply terminal VRF of magneto special converter UF and the earth terminal GND, the slide plate of variable resistance RP links to each other with the aanalogvoltage frequency setting input terminal VCI of magneto special converter UF.
2. the motor control assembly of magneto direct-drive type screw pump oil pumper according to claim 1, it is characterized in that: also comprise being used for output wiring terminal U2, the V2, the W2 that are connected with axial flow blower M2, output wiring terminal U2, V2, W2 link to each other with the outlet side binding post of circuit breaker Q F1 through circuit breaker Q F2.
3. the motor control assembly of magneto direct-drive type screw pump oil pumper according to claim 1 and 2 is characterized in that: described resistance braking circuit constitutes for brake resistance R1, R2, the R3 that connects with delta connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201441189U CN201616807U (en) | 2010-03-26 | 2010-03-26 | Motor control device for permanent-magnet motor direct-driving screw-pump oil extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201441189U CN201616807U (en) | 2010-03-26 | 2010-03-26 | Motor control device for permanent-magnet motor direct-driving screw-pump oil extractor |
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| CN201616807U true CN201616807U (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201441189U Expired - Fee Related CN201616807U (en) | 2010-03-26 | 2010-03-26 | Motor control device for permanent-magnet motor direct-driving screw-pump oil extractor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684113A (en) * | 2012-09-07 | 2014-03-26 | 成都默一科技有限公司 | Dual-damper and single-resistor triangularly connected non-vibration brake frequency conversion device |
| CN103904964A (en) * | 2012-12-28 | 2014-07-02 | 北京中纺锐力机电有限公司 | Switched reluctance motor speed adjusting device |
| CN104852650A (en) * | 2015-05-07 | 2015-08-19 | 郭斌 | Generator frequency conversion adjustment and control device |
| CN105322836A (en) * | 2014-07-04 | 2016-02-10 | 海德堡印刷机械股份公司 | Braking circuit in alternating current loop |
| CN107947645A (en) * | 2017-11-29 | 2018-04-20 | 苏州汇川技术有限公司 | High voltage converter fast braking system and control method |
| CN108551231A (en) * | 2018-04-24 | 2018-09-18 | 厦门精图信息技术有限公司 | A kind of City Buried Pipeline security management and control system |
| CN112491303A (en) * | 2019-09-11 | 2021-03-12 | 九江精密测试技术研究所 | Brushless torque motor braking device |
-
2010
- 2010-03-26 CN CN2010201441189U patent/CN201616807U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103684113A (en) * | 2012-09-07 | 2014-03-26 | 成都默一科技有限公司 | Dual-damper and single-resistor triangularly connected non-vibration brake frequency conversion device |
| CN103904964A (en) * | 2012-12-28 | 2014-07-02 | 北京中纺锐力机电有限公司 | Switched reluctance motor speed adjusting device |
| CN105322836A (en) * | 2014-07-04 | 2016-02-10 | 海德堡印刷机械股份公司 | Braking circuit in alternating current loop |
| CN104852650A (en) * | 2015-05-07 | 2015-08-19 | 郭斌 | Generator frequency conversion adjustment and control device |
| CN107947645A (en) * | 2017-11-29 | 2018-04-20 | 苏州汇川技术有限公司 | High voltage converter fast braking system and control method |
| CN107947645B (en) * | 2017-11-29 | 2021-03-05 | 苏州汇川技术有限公司 | High-voltage frequency converter rapid braking system and control method |
| CN108551231A (en) * | 2018-04-24 | 2018-09-18 | 厦门精图信息技术有限公司 | A kind of City Buried Pipeline security management and control system |
| CN108551231B (en) * | 2018-04-24 | 2023-05-05 | 厦门精图信息技术有限公司 | Urban underground pipeline safety control system |
| CN112491303A (en) * | 2019-09-11 | 2021-03-12 | 九江精密测试技术研究所 | Brushless torque motor braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20160326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |