Motor control system of nozzle stress application regulator adjusting test bench

Abstract

The utility model provides a motor control system of a nozzle stress application regulator adjusting test bench, comprising a 380V power supply bus, the power supply bus is respectively connected with a control circuit, a low-pressure pump circuit and a high-pressure pump circuit through three sub-lines, the control circuit is provided with a transformer TR1, the low-pressure pump circuit is provided with a fuse FU2, and the high-pressure pump circuit is provided with a high-voltage power supply bus. The rear electrode of the fuse 2 is connected with a low-pressure pump motor M1 and a motor cooling fan M1-Wind in parallel, the high-pressure pump circuit is provided with a fuse FU3, and the rear electrode of the fuse FU3 is connected with a high-pressure pump motor M2, a motor cooling fan M2-Wind, a motor cooling fan 2-1-Wind, a lubricating motor M12 and a chemical pump motor M13 in parallel. The two high-pressure pumps are arranged and are in a mutual standby state, mutual locking between the two high-pressure pumps is achieved through the intermediate relay, and the two pumps are prevented from being started at the same time.

Description

Technical Field

[0001] The utility model relates to a motor control system of a nozzle booster regulator adjustment test bench. Background Art

[0002] The nozzle boost regulator adjustment test bench is used to test the performance of three types of products: nozzle boost regulator, fuel distributor, and emergency fuel discharge accessories. During the experiment, the fuel in the fuel tank is pumped out through the nozzle by an oil pump, and the nozzle is adjusted by adjusting the distribution of the fuel. Oil pumps with different pressures are required during the test, and each oil pump needs to be driven by motors of different powers, so an electrical system is required to stably control each motor. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a motor control system of a nozzle booster regulator adjustment test bench.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a motor control system for a nozzle booster regulator adjustment test bench, comprising a 380V power supply bus, the power supply bus is respectively connected to a control circuit, a low-pressure pump circuit, and a high-pressure pump circuit through three sub-wires, the control circuit is provided with a transformer TR1, the low-pressure pump circuit is provided with a fuse FU2, the rear pole of the fuse 2 is connected in parallel with a low-pressure pump motor M1 and a motor cooling fan M1-Wind, the high-pressure pump circuit is provided with a fuse FU3, the rear pole of the fuse FU3 is connected in parallel with a high-pressure pump motor M2, a motor cooling fan M2-Wind, a motor cooling fan 2-1-Wind, a lubrication motor M12, and a chemical pump motor M13.

[0006] The fuse FU2 and the low-pressure pump motor M1 are also connected in sequence with a normally open contact of a contactor KM4, a frequency converter FrC1, and an output reactor ODK1;

[0007] The normally open contact of the contactor KM5 and the motor integrated protector FR2 are also connected between the fuse FU2 and the foundation cooling fan M1-Wind.

[0008] The normally open contact of contactor KM6, frequency converter FrC2, output inductor ODK2, and normally open contact of contactor KM7 are connected in sequence between the fuse FU3 and the high-voltage pump motor M2. The rear pole of the output inductor ODK2 is also connected in sequence to the normally open contact of contactor KM9 and the high-voltage pump motor M2-1.

[0009] The motor cooling fan M2-Wind, motor cooling fan 2-1-Wind, lubrication motor M12, chemical pump motor M13 and fuse FU3 are respectively connected with the normally open contact of contactor KM8 and motor integrated protector FR3, the normally open contact of contactor KM10 and motor integrated protector FR4, the normally open contact of contactor KM11 and motor integrated protector FR5, and the normally open contact of contactor KM12 and motor integrated protector FR6.

[0010] The control circuit includes contactors KM4 to KM12, one end of which is connected in parallel to the T1-N end of the transformer TR1;

[0011] The other ends of the contactors KM4 and KM5 are respectively connected to the two normally open contacts of the intermediate relay KA2, and the other ends of the two normally open contacts of the intermediate relay KA2 are connected in parallel to one end of the motor integrated protector FR2;

[0012] The other ends of the contactors KM4 and KM5 are respectively connected to the two normally open contacts of the intermediate relay KA2, and the other ends of the two normally open contacts of the intermediate relay KA2 are connected in parallel to one end of the motor integrated protector FR2;

[0013] The other ends of contactors KM7 and KM8 are respectively connected to the two normally open contacts of intermediate relay KA4, the other ends of the two normally open contacts of intermediate relay KA4 are connected in parallel to the normally closed contacts of intermediate relay KA5, and the other end of the normally closed contacts of intermediate relay KA5 is connected to the motor integrated protector FR2;

[0014] The other ends of contactors KM9 and KM10 are respectively connected to the two normally open contacts of intermediate relay KA5, the other ends of the two normally open contacts of intermediate relay KA5 are connected in parallel to the normally closed contact of intermediate relay KA6, the other end of the normally closed contact of intermediate relay KA6 is connected to the normally closed contact of intermediate relay KA4, and the normally closed contact of intermediate relay KA6 is connected to the motor integrated protector FR2;

[0015] The other end of the contactor KM6 is connected to the normally open contact of the intermediate relay KA3;

[0016] The other ends of contactors KM11 and KM12 are connected to the normally open contacts of intermediate relays KA6 and KA7 respectively, and the other ends of intermediate relays KA6 and KA7 are connected to motor integrated protectors FR5 and FR6 respectively;

[0017] The motor integrated protectors FR2-FR6 are connected in parallel to the T1-L terminal of the transformer TR1, and the intermediate relays KA2-KA7 are connected to the signal output terminal of the PLC.

[0018] The beneficial effect of the utility model is that two high-pressure pumps are provided to be in a standby state with each other, and the two high-pressure pumps are mutually locked through an intermediate relay to avoid starting the two pumps at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the principle of the motor power supply circuit of the utility model;

[0020] Figure 2 This is a schematic diagram of the control machine circuit principle of the utility model. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0022] A motor control system for a nozzle booster regulator adjustment test bench comprises a 380V power supply bus, the power supply bus is respectively connected to a control circuit, a low-pressure pump circuit and a high-pressure pump circuit through three sub-wires, a transformer TR1 is provided on the control circuit, a fuse FU2 is provided on the low-pressure pump circuit, a low-pressure pump motor M1 and a motor cooling fan M1-Wind are connected in parallel to the rear pole of the fuse 2, a fuse FU3 is provided on the high-pressure pump circuit, a high-pressure pump motor M2, a motor cooling fan M2-Wind, a motor cooling fan 2-1-Wind, a lubrication motor M12 and a chemical pump motor M13 are connected in parallel to the rear pole of the fuse FU3.

[0023] The fuse FU2 and the low-pressure pump motor M1 are also connected in sequence with a normally open contact of a contactor KM4, a frequency converter FrC1, and an output reactor ODK1;

[0024] The normally open contact of the contactor KM5 and the motor integrated protector FR2 are also connected between the fuse FU2 and the foundation cooling fan M1-Wind.

[0025] The normally open contact of contactor KM6, frequency converter FrC2, output inductor ODK2, and normally open contact of contactor KM7 are connected in sequence between the fuse FU3 and the high-voltage pump motor M2. The rear pole of the output inductor ODK2 is also connected in sequence to the normally open contact of contactor KM9 and the high-voltage pump motor M2-1.

[0026] The motor cooling fan M2-Wind, motor cooling fan 2-1-Wind, lubrication motor M12, chemical pump motor M13 and fuse FU3 are respectively connected with the normally open contact of contactor KM8 and motor integrated protector FR3, the normally open contact of contactor KM10 and motor integrated protector FR4, the normally open contact of contactor KM11 and motor integrated protector FR5, and the normally open contact of contactor KM12 and motor integrated protector FR6.

[0027] The control circuit includes contactors KM4 to KM12, one end of which is connected in parallel to the T1-N end of the transformer TR1;

[0028] The other ends of the contactors KM4 and KM5 are respectively connected to the two normally open contacts of the intermediate relay KA2, and the other ends of the two normally open contacts of the intermediate relay KA2 are connected in parallel to one end of the motor integrated protector FR2;

[0029] The other ends of the contactors KM4 and KM5 are respectively connected to the two normally open contacts of the intermediate relay KA2, and the other ends of the two normally open contacts of the intermediate relay KA2 are connected in parallel to one end of the motor integrated protector FR2;

[0030] The other ends of contactors KM7 and KM8 are respectively connected to the two normally open contacts of intermediate relay KA4, the other ends of the two normally open contacts of intermediate relay KA4 are connected in parallel to the normally closed contacts of intermediate relay KA5, and the other end of the normally closed contacts of intermediate relay KA5 is connected to the motor integrated protector FR2;

[0031] The other ends of contactors KM9 and KM10 are respectively connected to the two normally open contacts of intermediate relay KA5, the other ends of the two normally open contacts of intermediate relay KA5 are connected in parallel to the normally closed contact of intermediate relay KA6, the other end of the normally closed contact of intermediate relay KA6 is connected to the normally closed contact of intermediate relay KA4, and the normally closed contact of intermediate relay KA6 is connected to the motor integrated protector FR2;

[0032] The other end of the contactor KM6 is connected to the normally open contact of the intermediate relay KA3;

[0033] The other ends of contactors KM11 and KM12 are connected to the normally open contacts of intermediate relays KA6 and KA7 respectively, and the other ends of intermediate relays KA6 and KA7 are connected to motor integrated protectors FR5 and FR6 respectively;

[0034] The motor integrated protectors FR2-FR6 are connected in parallel to the T1-L terminal of the transformer TR1, and the intermediate relays KA2-KA7 are connected to the signal output terminal of the PLC.

[0035] like Figure 1As shown, contactors KM4, KM5, KM7, KM8, KM9, KM10, KM11, and KM12 control the start and stop of low-pressure pump motor M1, click cooling fan M1-Wind, high-pressure pump motor M2, motor cooling fan M2-Wind, high-pressure pump motor M2-1, motor cooling fan M2-1-Wind, lubrication motor M12, and chemical pump motor M13 respectively. The front end of high-pressure pump motor M2 and high-pressure pump motor M2-1 is provided with inverter FrC2, and contactor KM6 is used to control the inverter.

[0036] like Figure 2 As shown, transformer TR1 converts 380V AC into 220V AC to power the contactor coil, and simultaneously controls the start and stop of the low-voltage pump motor M1 and its cooling fan through the intermediate relay KA2.

[0037] The high-pressure pump motor M2 and the high-pressure pump motor M2-1 are interlocked with each other through the intermediate relay, and one is operated at the same time. Figure 2 As shown, the two normally open contacts of the intermediate relay KA4 and the two normally open contacts of the intermediate relay KA5 respectively control the start and stop of the high-pressure pump motor M2 and the high-pressure pump motor M2-1 and their cooling fans. The normally closed contact of the intermediate relay KA5 is connected in series in the coil circuit of the contactors KM7 and KM8, and the normally closed contact of the intermediate relay KA4 is connected in series in the circuit of the contactors KM9 and KM10. When the normally open contact of the intermediate relay KA4 is closed and the M2 high-pressure pump motor is started, its normally closed contact is disconnected, so that the M2-1 high-pressure pump will not start. When the normally open contact of the intermediate relay KA5 is closed and the M2-1 high-pressure pump motor is started, its normally closed contact is disconnected, so that the M2 high-pressure pump will not start. And the normally closed contact of the intermediate relay KA6 is connected in series in the circuit of the contactors KM9 and KM10, so that the lubrication pump motor M12 of the M2-1 high-pressure pump motor is locked with the M2-1 high-pressure pump motor, so that after the lubrication pump motor M12 is started, the M2-1 high-pressure pump motor will not start.

Claims

1. A motor control system for a nozzle booster regulator adjustment test bench, characterized in that: It includes a 380V power supply bus, which is connected to the control line, the low-pressure pump line and the high-pressure pump line through three sub-lines respectively. The control line is provided with a transformer TR1, the low-pressure pump line is provided with a fuse FU2, the rear pole of the fuse 2 is connected in parallel with the low-pressure pump motor M1 and the motor cooling fan M1-Wind, the high-pressure pump line is provided with a fuse FU3, the rear pole of the fuse FU3 is connected in parallel with the high-pressure pump motor M2, the motor cooling fan M2-Wind, the motor cooling fan 2-1-Wind, the lubrication motor M12 and the chemical pump motor M13.

2. The motor control system of the nozzle booster regulator adjustment test bench according to claim 1, characterized in that: The fuse FU2 and the low-pressure pump motor M1 are also connected in sequence with a normally open contact of a contactor KM4, a frequency converter FrC1, and an output reactor ODK1; The normally open contact of the contactor KM5 and the motor integrated protector FR2 are also connected between the fuse FU2 and the foundation cooling fan M1-Wind.

3. The motor control system of the nozzle booster regulator adjustment test bench according to claim 1, characterized in that: The normally open contact of contactor KM6, frequency converter FrC2, output inductor ODK2, and normally open contact of contactor KM7 are connected in sequence between the fuse FU3 and the high-voltage pump motor M2. The rear pole of the output inductor ODK2 is also connected in sequence to the normally open contact of contactor KM9 and the high-voltage pump motor M2-1.

4. The motor control system of the nozzle booster regulator adjustment test bench according to claim 1, characterized in that: The motor cooling fan M2-Wind, motor cooling fan 2-1-Wind, lubrication motor M12, chemical pump motor M13 and fuse FU3 are respectively connected with the normally open contact of contactor KM8 and motor integrated protector FR3, the normally open contact of contactor KM10 and motor integrated protector FR4, the normally open contact of contactor KM11 and motor integrated protector FR5, and the normally open contact of contactor KM12 and motor integrated protector FR6.

5. The motor control system of the nozzle booster regulator adjustment test bench according to claim 1, characterized in that: The control circuit includes contactors KM4 to KM12, one end of which is connected in parallel to the T1-N end of the transformer TR1; The other ends of the contactors KM4 and KM5 are respectively connected to the two normally open contacts of the intermediate relay KA2, and the other ends of the two normally open contacts of the intermediate relay KA2 are connected in parallel to one end of the motor integrated protector FR2; The other ends of contactors KM7 and KM8 are respectively connected to the two normally open contacts of intermediate relay KA4, the other ends of the two normally open contacts of intermediate relay KA4 are connected in parallel to the normally closed contacts of intermediate relay KA5, and the other end of the normally closed contacts of intermediate relay KA5 is connected to the motor integrated protector FR2; The other ends of contactors KM9 and KM10 are respectively connected to the two normally open contacts of intermediate relay KA5, the other ends of the two normally open contacts of intermediate relay KA5 are connected in parallel to the normally closed contact of intermediate relay KA6, the other end of the normally closed contact of intermediate relay KA6 is connected to the normally closed contact of intermediate relay KA4, and the normally closed contact of intermediate relay KA6 is connected to the motor integrated protector FR2; The other end of the contactor KM6 is connected to the normally open contact of the intermediate relay KA3; The other ends of contactors KM11 and KM12 are connected to the normally open contacts of intermediate relays KA6 and KA7 respectively, and the other ends of intermediate relays KA6 and KA7 are connected to motor integrated protectors FR5 and FR6 respectively; The motor integrated protectors FR2-FR6 are connected in parallel to the T1-L terminal of the transformer TR1, and the intermediate relays KA2-KA7 are connected to the signal output terminal of the PLC.

Images