CN115405527B - Mining intelligent multistage centrifugal pump - Google Patents

Mining intelligent multistage centrifugal pump Download PDF

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Publication number
CN115405527B
CN115405527B CN202210978885.7A CN202210978885A CN115405527B CN 115405527 B CN115405527 B CN 115405527B CN 202210978885 A CN202210978885 A CN 202210978885A CN 115405527 B CN115405527 B CN 115405527B
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resistor
module
circuit
light emitting
emitting diode
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CN115405527A (en
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罗瑞祥
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Changsha Changjia Intelligent Fluid Technology Co ltd
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Changsha Changjia Intelligent Fluid Technology Co ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/06Multi-stage pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0088Testing machines

Abstract

The invention discloses an intelligent multistage centrifugal pump for mines, which comprises a centrifugal pump, a detection module, a delay adjusting module, an early warning module, a judging module, a reset module and a starting module, wherein the detection module is connected with the centrifugal pump, the delay adjusting module and the judging module, the detection module detects various data signals of the centrifugal pump and feeds back the signals to the delay adjusting module and the judging module in real time, the delay adjusting module is connected with the judging module, the delay adjusting module receives the signals and processes the signals to the judging module, the judging module is also connected with the reset module, the early warning module and the starting module respectively, the judging module receives the signals of the detection module and the delay adjusting module and judges the signals to feed back the signals to the starting module, the reset module and the early warning module, the early warning module receives the signals and feeds back a high-level starting or low-level stopping signal to the centrifugal pump, and the reset module cuts off the power supply signal of the starting module after receiving the signals, so that the starting module is closed.

Description

Mining intelligent multistage centrifugal pump
Technical Field
The invention relates to the field of intelligent control, in particular to an intelligent multistage centrifugal pump for mines.
Background
At present, a mine main drainage medium is complex, so that the main drainage pump frequently fails, such as water leakage, air leakage, water drop, vibration and other faults, a centrifugal pump is used as production main drainage equipment, the shutdown time, material cost and labor cost are reduced by correctly monitoring, diagnosing, maintaining or replacing the main drainage pump before a disaster, in use, the shutdown maintenance or early warning conditions are required to be set according to different sites and use conditions, in the prior art, the unnecessary shutdown signal feedback time cannot be set according to actual conditions, the false early warning is caused when the centrifugal pump is started, when the unnecessary shutdown maintenance conditions are changed due to the use sites and conditions, the detection mode and the processing mode cannot be changed, the automatic judgment cannot be carried out on the mode after adjustment, and the centrifugal pump is subjected to false circulation between the startup and the shutdown according to some projects needing startup detection after the water pump is stopped, such as the water pump vibration, the axle center deviation and the like.
Disclosure of Invention
The invention aims to solve the technical problems, and provides an intelligent mining multistage centrifugal pump which comprises a centrifugal pump, a detection module, a delay adjusting module, an early warning module, a judging module, a reset module and a starting module, wherein the detection module is connected with the centrifugal pump, the delay adjusting module and the judging module, the detection module detects various data signals of the centrifugal pump and feeds back signals to the delay adjusting module and the judging module in real time, the delay adjusting module is connected with the judging module, the delay adjusting module receives signals and processes the signals and feeds back the signals to the judging module, the judging module is also connected with the reset module, the early warning module and the starting module respectively, the judging module receives signals of the detection module and the delay adjusting module and judges and feeds back the signals to the starting module, the reset module and the early warning module, the starting module receives signals and feeds back high-level starting or low-level stopping signals to the centrifugal pump, and the starting module cuts off power signals after the reset module receives signals.
Further, the judging module comprises a first resistor R1, a second resistor R2, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a second light emitting diode D2, a third phototriode D3, a fourth triode D4, a fifth NMOS tube D5, a sixth light emitting diode D6, a seventh phototriode D7, an eighth light emitting diode D8, a ninth phototriode D9, a tenth PMOS tube D10, a first operational amplifier U1, a second operational amplifier U2, a first relay K1, a second relay K2, a first circuit, a second circuit, a third circuit, a fourth circuit, a fifth circuit, a sixth circuit, a seventh circuit and a twelfth circuit, one end of a first resistor R1, one end of a second resistor R2, one end of a fourth resistor R4 are connected with a twelfth circuit, the twelfth circuit is connected with a power supply, the other end of the first resistor R1 is connected with a collector of a third phototriode D3 of a first optocoupler module and an anode of a second light emitting diode D2, a base of the second light emitting diode D2 is coupled with a base of the third phototriode D3, an emitter of the third phototriode D3 is connected with one end of a coil of a second relay K2, the other end of the coil of the second relay K2 is connected with the second circuit, a normally closed contact of the second relay K2 is connected with a seventh circuit, a cathode of the second light emitting diode D2 is connected with the other end of the fourth resistor R4, one end of the fifth resistor R5 is connected with a base of the fifth NMOS tube D5, the other end of the fifth resistor R5 is connected with a base of the fourth triode D4, the collector of the fourth triode D4 is connected with the other end of the second resistor R2, an emitter of the fourth triode D4 is connected with one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected with one end of a seventh resistor R7 and the anode of an eighth light emitting diode D8 of the second optocoupler module, the base electrodes of the eighth light emitting diode D8 and a ninth phototriode D9 are coupled, the cathode of the eighth light emitting diode D8 is connected with the collector of the ninth phototriode D9 and the S electrode of a tenth PMOS tube D10, the emitter of the ninth phototriode D9 is connected with one end of a coil of a first relay K1, the other end of the coil of the first relay K1 is connected with a fourth line, the normally-closed contact of the first relay K1 is connected with a sixth line, the other end of the seventh resistor R7 is connected with the anode of a sixth light emitting diode D6 of the third optocoupler module and the collector of the seventh phototriode D7, the base electrodes of the sixth light emitting diode D6 and the seventh phototriode D7 are coupled, the emitter of the seventh phototriode D7 is connected with the fifth line, the cathode of the sixth light emitting diode D6 is connected with the S pole of the fifth NMOS tube D5, the G pole of the fifth NMOS tube D5 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with the output end of the first operational amplifier U1 and one end of a tenth resistor R10, the other end of the tenth resistor R10 is connected with one end of an eighth resistor R8, the other end of the eighth resistor R8 is connected with the cathode of the first operational amplifier U1, the anode of the first operational amplifier U1 is connected with a first circuit, the G pole of the tenth PMOS tube D10 is connected with one end of an eleventh resistor R11, the other end of the eleventh resistor R11 is connected with one end of a second operational amplifier U2 and one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is connected with one end of a thirteenth resistor R13, the other end of the thirteenth resistor R13 is connected with the cathode of the second operational amplifier U2, and the anode of the second operational amplifier U2 is connected with the third circuit.
Further, the first circuit is connected with the detection module, the second circuit and the fourth circuit are connected with the early warning module, the fifth circuit, the seventh circuit and the twelfth circuit are connected with the starting module, the third circuit is connected with the delay adjusting module, and the sixth circuit and the seventh circuit are connected with the reset module.
Further, the delay adjusting module comprises a fourteenth potentiometer R14, a fifteenth resistor R15, a sixteenth resistor R16, an eighth circuit and a ninth circuit, one end of the eighth circuit is connected with the detecting module, the other end of the eighth circuit is connected with one end of the fourteenth potentiometer R14, the other end of the fourteenth potentiometer R14 is connected with the fifteenth resistor R15, a signal end of the fourteenth potentiometer R14 is connected with the ninth circuit, an adjusting end of the fourteenth potentiometer R14 is connected with one end of the sixteenth resistor R16, and the other end of the sixteenth resistor R16 is connected with the judging module.
Further, the starting module comprises a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty first resistor R21, a twelfth diode D12, a thirteenth diode D13, a fourteenth diode D14 and a tenth circuit, wherein one end of the eighteenth resistor R18 is connected with the judging module, the other end of the eighteenth resistor R18 is connected with the cathode of the thirteenth diode D13, the anode of the thirteenth diode D13 is connected with one end of the nineteenth resistor R19, the anode of the twelfth diode D12, the anode of the fourteenth diode D14 and one end of the twenty first resistor R21, the cathode of the twelfth diode D12 is connected with one end of the seventeenth resistor R17, the other end of the seventeenth resistor R17 is connected with the judging module, the power starting signal of the power source is connected with the resetting module, the cathode of the fourteenth diode D14 is connected with one end of the twenty first resistor R20, the other end of the twenty first resistor R20 is connected with the judging module, and the other end of the twenty first resistor R21 is connected with the tenth circuit.
Further, the detection module comprises a first detection unit and a second detection unit, the detection module is connected with the judgment module through the first detection unit, the second detection unit is connected with the delay adjustment module, the output end of the reset module comprises an eleventh line, the input end of the reset module is connected with the judgment module, signals are fed back to the eleventh line, the eleventh line is connected with the starting module, and the power signals of the starting module are controlled through the eleventh line.
Further, the judging module further includes a third resistor R3 and a first light emitting diode D1, one end of the third resistor R3 is connected to the first resistor R1, the second resistor R2, the fourth resistor R4 and the twelfth line, and the other end of the third resistor R3 is connected to the anode of the first light emitting diode D1.
Further, the delay adjustment module further includes a tenth light emitting diode D11, and the tenth light emitting diode D11 is connected in series between the sixteenth resistor R16 and the determination module.
Further, the starting module further includes a fifteenth light emitting diode D15, and the fifteenth light emitting diode D15 is connected in series between the twenty-first resistor R21 and the tenth line.
Compared with the prior art, the invention has the beneficial effects that:
the signal feedback time of unnecessary shutdown can be set according to actual conditions, the signal drift amount is regulated, the detection mode can be changed, the signal feedback time can be regulated to effectively prevent the centrifugal pump from being wrongly pre-warned when the centrifugal pump is started, the signal drift amount of the detection module is regulated, the mode of processing the water pump after receiving detection signals can be changed, automatic judgment can be carried out after regulation, and signal error circulation between the start and stop of the centrifugal pump caused by no vibration of the water pump after the water pump is stopped can be prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a mining intelligent multistage centrifugal pump.
Fig. 2 is a schematic diagram of a judging module structure of the mining intelligent multistage centrifugal pump.
Fig. 3 is a schematic diagram of a delay adjustment module of the intelligent multistage centrifugal pump for mines.
Fig. 4 is a schematic diagram of a starting module structure of a mining intelligent multistage centrifugal pump.
Fig. 5 is a schematic connection diagram of a reset module of a mining intelligent multistage centrifugal pump.
Detailed Description
In order that the objects and advantages of the invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, it being understood that the following text is only intended to describe one or more specific embodiments of the invention and is not intended to limit the scope of the invention as defined in the appended claims.
Referring to the drawings, the invention relates to an intelligent multistage centrifugal pump for mines, which comprises a centrifugal pump, a detection module, a delay adjusting module, an early warning module, a judging module, a reset module and a starting module, wherein the detection module is connected with the centrifugal pump, the delay adjusting module and the judging module, the detection module detects various data signals of the centrifugal pump and feeds back the signals to the delay adjusting module and the judging module in real time, the delay adjusting module is connected with the judging module, the delay adjusting module receives the signals and processes the signals and feeds back the signals to the judging module, the judging module is also connected with the reset module, the early warning module and the starting module respectively, the judging module receives the signals of the detection module and the delay adjusting module and judges the signals and feeds back the signals to the starting module, the reset module and the early warning module, the starting module feeds back a high-level starting or low-level stopping signal to the centrifugal pump after receiving the signals, and the power signal of the starting module is cut off after the reset module receives the signals, so that the starting module is closed.
Specifically, the judging module comprises a first resistor R1, a second resistor R2, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a second light emitting diode D2, a third phototriode D3, a fourth triode D4, a fifth NMOS tube D5, a sixth light emitting diode D6, a seventh phototriode D7, an eighth light emitting diode D8, a ninth phototriode D9, a tenth PMOS tube D10, a first operational amplifier U1, a second operational amplifier U2, a first relay K1, a second relay K2, a first circuit, a second circuit, a third circuit, a fourth circuit, a fifth circuit, a sixth circuit, a seventh circuit and a twelfth circuit, one end of a first resistor R1, one end of a second resistor R2, one end of a fourth resistor R4 are connected with a twelfth circuit, the twelfth circuit is connected with a power supply, the other end of the first resistor R1 is connected with a collector of a third phototriode D3 of a first optocoupler module and an anode of a second light emitting diode D2, a base of the second light emitting diode D2 is coupled with a base of the third phototriode D3, an emitter of the third phototriode D3 is connected with one end of a coil of a second relay K2, the other end of the coil of the second relay K2 is connected with the second circuit, a normally closed contact of the second relay K2 is connected with a seventh circuit, a cathode of the second light emitting diode D2 is connected with the other end of the fourth resistor R4, one end of the fifth resistor R5 is connected with a base of the fifth NMOS tube D5, the other end of the fifth resistor R5 is connected with a base of the fourth triode D4, the collector of the fourth triode D4 is connected with the other end of the second resistor R2, an emitter of the fourth triode D4 is connected with one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected with one end of a seventh resistor R7 and the anode of an eighth light emitting diode D8 of the second optocoupler module, the base electrodes of the eighth light emitting diode D8 and a ninth phototriode D9 are coupled, the cathode of the eighth light emitting diode D8 is connected with the collector of the ninth phototriode D9 and the S electrode of a tenth PMOS tube D10, the emitter of the ninth phototriode D9 is connected with one end of a coil of a first relay K1, the other end of the coil of the first relay K1 is connected with a fourth line, the normally-closed contact of the first relay K1 is connected with a sixth line, the other end of the seventh resistor R7 is connected with the anode of a sixth light emitting diode D6 of the third optocoupler module and the collector of the seventh phototriode D7, the base electrodes of the sixth light emitting diode D6 and the seventh phototriode D7 are coupled, the emitter of the seventh phototriode D7 is connected with the fifth line, the cathode of the sixth light emitting diode D6 is connected with the S pole of the fifth NMOS tube D5, the G pole of the fifth NMOS tube D5 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with the output end of the first operational amplifier U1 and one end of a tenth resistor R10, the other end of the tenth resistor R10 is connected with one end of an eighth resistor R8, the other end of the eighth resistor R8 is connected with the cathode of the first operational amplifier U1, the anode of the first operational amplifier U1 is connected with a first circuit, the G pole of the tenth PMOS tube D10 is connected with one end of an eleventh resistor R11, the other end of the eleventh resistor R11 is connected with one end of a second operational amplifier U2 and one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is connected with one end of a thirteenth resistor R13, the other end of the thirteenth resistor R13 is connected with the cathode of the second operational amplifier U2, and the anode of the second operational amplifier U2 is connected with the third circuit.
Specifically, the first circuit is connected with the detection module, the second circuit and the fourth circuit are connected with the early warning module, the fifth circuit, the seventh circuit and the twelfth circuit are connected with the starting module, the third circuit is connected with the delay adjusting module, and the sixth circuit and the seventh circuit are connected with the reset module.
Specifically, the delay adjustment module comprises a fourteenth potentiometer R14, a fifteenth resistor R15, a sixteenth resistor R16, an eighth circuit and a ninth circuit, one end of the eighth circuit is connected with the detection module, the other end of the eighth circuit is connected with one end of the fourteenth potentiometer R14, the other end of the fourteenth potentiometer R14 is connected with the fifteenth resistor R15, a signal end of the fourteenth potentiometer R14 is connected with the ninth circuit, an adjustment end of the fourteenth potentiometer R14 is connected with one end of the sixteenth resistor R16, and the other end of the sixteenth resistor R16 is connected with the judgment module.
Specifically, the starting module includes a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty first resistor R21, a twelfth diode D12, a thirteenth diode D13, a fourteenth diode D14, and a tenth line, one end of the eighteenth resistor R18 is connected to the judging module, the other end is connected to the cathode of the thirteenth diode D13, the anode of the thirteenth diode D13 is connected to one end of the nineteenth resistor R19, the anode of the twelfth diode D12, the anode of the fourteenth diode D14, and one end of the twenty first resistor R21, the cathode of the twelfth diode D12 is connected to one end of the seventeenth resistor R17, the other end of the seventeenth resistor R17 is connected to the judging module, the other end of the nineteenth resistor R19 is connected to the power supply, the power supply starting signal is connected to the resetting module, the cathode of the fourteenth diode D14 is connected to one end of the twentieth resistor R20, the other end of the twentieth resistor R20 is connected to the judging module, and the other end of the twenty first resistor R21 is connected to the tenth line.
Specifically, the detection module comprises a first detection unit and a second detection unit, the detection module is connected with the judgment module through the first detection unit, the second detection unit is connected with the delay adjustment module, the output end of the reset module comprises an eleventh circuit, the input end of the reset module is connected with the judgment module, signals are fed back to the eleventh circuit, the eleventh circuit is connected with the starting module, and the power signals of the starting module are controlled through the eleventh circuit.
Specifically, the judging module further includes a third resistor R3 and a first light emitting diode D1, one end of the third resistor R3 is connected to the first resistor R1, the second resistor R2, the fourth resistor R4 and the twelfth line, and the other end of the third resistor R3 is connected to the anode of the first light emitting diode D1.
Specifically, the delay adjustment module further includes a tenth light emitting diode D11, and the tenth light emitting diode D11 is connected in series between the sixteenth resistor R16 and the determination module.
Specifically, the starting module further includes a fifteenth light emitting diode D15, where the fifteenth light emitting diode D15 is connected in series between the twenty-first resistor R21 and the tenth line.
Specifically, a first detection unit detection signal in the detection module is fed back to a first circuit, the first detection unit is used for detecting a detection item of the centrifugal pump which needs to be shut down for maintenance, a second detection unit detection signal is fed back to an eighth circuit, the detection item of the centrifugal pump which needs to be shut down for maintenance or the detection item which does not need to be shut down for maintenance are used for detecting the detection item of the centrifugal pump which needs to be shut down for maintenance, namely a shut down maintenance detection mode and a non-shut down maintenance detection mode, a ninth circuit in the delay adjustment module is used for adjusting a fourteenth potentiometer R14, adjusting the starting time of the fourteenth potentiometer R14 for changing the eighth circuit signal of the second detection unit, adjusting the fourteenth potentiometer R14 to carry out uplink or downlink drifting on the third circuit signal, namely the signal is higher than or lower than the cathode threshold of a second operational amplifier U2, and the output end of the second operational amplifier U2 outputs a high level signal or a low level signal, the second detection unit is changed into a shutdown maintenance item detection mode or a non-shutdown maintenance item detection mode, when the condition that shutdown maintenance is required does not occur in the judgment module, the output end of the first operational amplifier U1 outputs a low-level signal, the output end of the second operational amplifier U2 outputs a high-level signal, the judgment module power supply signal is output to the first resistor R1, the second resistor R2, the fourth resistor R4 and the third resistor R3 in four ways, the fifth NMOS tube D5 is cut off and the second light emitting diode D2 is cut off due to the fact that the first operational amplifier U1 outputs the low-level signal, the signal passing through the first resistor R1 is not output, the signal passing through the fourth resistor R4 and the second resistor R2 passes through the fifth resistor R5, the fourth triode D4 and the sixth resistor R6, the signal passing through the sixth resistor R6 passes through the seventh resistor R7 to enable the tenth PMOS tube D10 to be cut off due to the fact that the second operational amplifier U2 outputs the high-level signal, the sixth light emitting diode D6 and the seventh phototriode D7 are coupled, signals are output to a fifth circuit, the sixth circuit is cut off due to the tenth PMOS tube D10, the eighth light emitting diode D8 and the ninth phototriode D9 have no signals output, the first relay K1 circuit is opened, the first relay K1 normally closed contact is closed, the sixth circuit outputs high-level signals, the seventh circuit is cut off due to the fifth NMOS tube D5, the second light emitting diode D2 and the third phototriode D3 have no signals output, the coil of the second relay K2 is opened, the normally closed contact of the second relay K2 is closed, the seventh circuit outputs high-level signals, the starting module receives the signals of the fifth circuit, the seventh circuit and the twelfth circuit, the cathode potential of the twelfth diode D12, the thirteenth diode D13 and the fourteenth diode D14 is higher than the anode potential, the fifteenth light emitting diode D15 is turned on, the signals are output to the tenth circuit to give a centrifugal pump starting signal, when the centrifugal pump is required to stop and maintain, the detection module feeds back a signal to the first circuit, the first operational amplifier U1 outputs a high-level signal, the signal enables the fifth NMOS tube D5 to be conducted through the ninth resistor R9, the signal passes through the first resistor R1, the second light emitting diode D2 and the fifth NMOS tube D5, the second light emitting diode D2 is coupled with the third phototransistor D3, the coil of the second relay K2 is sucked, the normally closed contact of the second relay K2 is disconnected, the seventh circuit outputs a low-level signal, the second circuit outputs a high-level signal, the second circuit is connected with the early warning module, the early warning module receives the signal and then carries out early warning, when the seventh circuit still passes through the reset module, the reset module feeds back the signal to the eleventh circuit to release the power signal of the starting module, and the seventh circuit is manually reset after maintenance, when the second detection unit changes into a shutdown maintenance item detection mode, the second operational amplifier U2 is regulated by the fourteenth potentiometer R14 of the third delay regulating module, so that an eighth line signal is transmitted to the eighth light emitting diode D8 and the tenth PMOS tube D10 through the sixteenth resistor R16, the tenth light emitting diode D11 and the third line, the second operational amplifier U2 receives the third line signal, when the third line signal is lower than the threshold value of the second operational amplifier U2, the second operational amplifier U2 outputs a low level signal, the tenth PMOS tube D10 is conducted, the eighth light emitting diode D8 and the ninth phototransistor D9 are transmitted through the sixth resistor R6, the first relay K1 is connected with a coil, the normally closed contact of the first relay K1 is disconnected, the sixth line outputs a low level signal, the fourth line is connected with the early warning module, when the sixth line signal is received by the early warning module, the reset module receives the low level signal of the sixth line, the reset module feeds back the signal to the eleventh line release starting power supply signal, after the second line is manually reset, the second line is in a shutdown maintenance item, the second operational amplifier U2 is continuously stopped when the second line is in a shutdown maintenance item, the second operational amplifier U2 is continuously stopped, the second line is continuously in a shutdown mode, the second operational amplifier U2 is continuously stopped, and the high level signal is continuously output.

Claims (5)

1. The mining intelligent multistage centrifugal pump comprises a centrifugal pump and a detection module, and is characterized by also comprising a delay adjusting module, an early warning module, a judging module, a reset module and a starting module, wherein the detection module is respectively connected with the centrifugal pump, the delay adjusting module and the judging module, the detection module detects various data signals of the centrifugal pump and feeds back the signals to the delay adjusting module and the judging module in real time, the delay adjusting module is connected with the judging module, the delay adjusting module receives the signals and processes the signals, and feeds back the signals to the judging module, the judging module is respectively connected with the reset module, the early warning module and the starting module, the judging module receives the signals from the detecting module and judges the signals to the starting module, the reset module and the early warning module, the early warning module gives early warning after receiving the signals, the starting module feeds back a high-level starting signal or a low-level stopping signal to the centrifugal pump according to the received signals, the reset module cuts off a power signal of the starting module according to the received signal to turn off the starting module, and the judging module comprises a first resistor R1, a second resistor R2, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a second light emitting diode D2, a third phototriode D3, a fourth triode D4, a fifth NMOS tube D5, a sixth light emitting diode D6, a seventh phototriode D7, an eighth light emitting diode D8, a ninth phototriode D9, a tenth PMOS tube D10, a first operational amplifier U1, a second operational amplifier U2, a first relay K1, a second relay K2, a first circuit, a second circuit, a third circuit, a fourth circuit, a fifth circuit, the fourth circuit, the fifth circuit, the sixth circuit, the seventh circuit and the twelfth circuit, the first resistor R1 end, the second resistor R2 end, the fourth resistor R4 end and the twelfth circuit are connected, the twelfth circuit and the power supply are connected, the other end of the first resistor R1 is connected with the third phototriode D3 collector of the first optocoupler module and the anode of the second light emitting diode D2, the second light emitting diode D2 is coupled with the base of the third phototriode D3, the emitter of the third phototriode D3 is connected with one end of the coil of the second relay K2, the other end of the coil of the second relay K2 is connected with the second circuit, the normally closed contact of the second relay K2 is connected with the seventh circuit, the normally closed contact of the second relay K2 is connected with the starting module and the reset module through the seventh circuit, the cathode of the second light emitting diode D2 is connected with the other end of the fourth resistor R4, the end of the fifth resistor R5 and the D electrode of the fifth NMOS tube D5, the other end of the fifth resistor R5 is connected with the base electrode of the fourth triode D4, the collector electrode of the fourth triode D4 is connected with the other end of the second resistor R2, the emitter electrode of the fourth triode D4 is connected with one end of a sixth resistor R6, the other end of the sixth resistor R6 is connected with one end of a seventh resistor R7 and the anode of an eighth light emitting diode D8 of the second optocoupler module, the eighth light emitting diode D8 is coupled with the base electrode of a ninth phototriode D9, the cathode of the eighth light emitting diode D8 is connected with the collector electrode of the ninth phototriode D9 and the S electrode of a tenth PMOS tube D10, the emitter electrode of the ninth phototriode D9 is connected with one end of a first relay K1 coil, the other end of the first relay K1 coil is connected with a fourth circuit, a normally closed contact of the first relay K1 is connected with the sixth circuit, the other end of the seventh resistor R7 is connected with the anode of the sixth light emitting diode D6 of the third optocoupler module and the collector electrode of the seventh phototriode D7, the sixth light emitting diode D6 is coupled with the base electrode of the seventh phototriode D7, the emitter electrode of the seventh phototriode D7 is connected with the fifth circuit, the emitter electrode of the seventh phototriode D7 is connected with the starting module through the fifth circuit, the cathode electrode of the sixth light emitting diode D6 is connected with the S electrode of the fifth NMOS tube D5, the G electrode of the fifth NMOS tube D5 is connected with one end of a ninth resistor R9, the other end of the ninth resistor R9 is connected with the output end of a first operational amplifier U1 and one end of a tenth resistor R10, the other end of the tenth resistor R10 is connected with one end of an eighth resistor R8, the other end of the eighth resistor R8 is connected with the cathode electrode of the first operational amplifier U1, the anode electrode of the tenth PMOS tube D10 is connected with one end of an eleventh resistor R11, the other end of the eleventh resistor R11 is connected with the output end of a second operational amplifier U2 and one end of a twelfth resistor R12, the other end of the twelfth resistor R12 is connected with one end of the thirteenth resistor R13, the other end of the thirteenth resistor R13 is connected with the negative electrode of the second operational amplifier U2, the positive electrode of the second operational amplifier U2 is connected with the third circuit, the detection module comprises a first detection unit and a second detection unit, the first detection unit is connected with the positive electrode of the first operational amplifier U1 through a first circuit of the judgment module, the second detection unit is connected with the delay adjustment module, the output end of the reset module comprises an eleventh circuit, the input end of the reset module is connected with the judgment module and feeds back signals to the eleventh circuit, the eleventh circuit is connected with the starting module, the starting module is provided with power supply starting signals through the eleventh circuit, the delay adjustment module comprises a fourteenth potentiometer R14, a fifteenth resistor R15, a sixteenth resistor R16, an eighth circuit and a ninth circuit, one end of the eighth circuit is connected with the detection module, the other end of the eighth circuit is connected with one end of a fourteenth potentiometer R14, the other end of the fourteenth potentiometer R14 is connected with a fifteenth resistor R15, the signal end of the fourteenth potentiometer R14 is connected with a ninth circuit, the adjusting end of the fourteenth potentiometer R14 is connected with one end of a sixteenth resistor R16, and the other end of the sixteenth resistor R16 is connected with the positive electrode of a second operational amplifier U2 through a third circuit of a judging module; the first circuit is connected with the detection module, the second circuit and the fourth circuit are connected with the early warning module, the fifth circuit, the seventh circuit and the twelfth circuit are connected with the starting module, the third circuit is connected with the delay adjusting module, and the sixth circuit and the seventh circuit are connected with the reset module.
2. The mining intelligent multistage centrifugal pump according to claim 1, wherein the starting module comprises a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a twenty first resistor R21, a twelfth diode D12, a thirteenth diode D13, a fourteenth diode D14 and a tenth line, one end of the eighteenth resistor R18 is connected with the judging module, the other end is connected with the cathode of the thirteenth diode D13, one end of the thirteenth diode D13 and one end of the nineteenth resistor R19, one end of the twelfth diode D12, one end of the fourteenth diode D14 and one end of the twenty first resistor R21 are connected, one end of the twelfth resistor D12 and one end of the seventeenth resistor R17 are connected, the other end of the seventeenth resistor R17 is connected with a fifth line of the judging module, the other end of the nineteenth resistor R19 is connected with a power supply, the power supply starting signal is connected with one end of the fourteenth diode D14 and one end of the twentieth resistor R20, and the other end of the twentieth resistor R20 is connected with the twenty second relay K2 through a seventh line of the judging module and the other end of the twenty first resistor R21 and the other end of the seventeenth resistor R20 are connected with the seventeenth line.
3. The mining intelligent multistage centrifugal pump according to claim 1, wherein the judging module further comprises a third resistor R3 and a first light emitting diode D1, one end of the third resistor R3 is connected with the first resistor R1, the second resistor R2, the fourth resistor R4 and a twelfth line, and the other end of the third resistor R3 is connected with the anode of the first light emitting diode D1.
4. The mining intelligent multistage centrifugal pump according to claim 1, wherein the delay adjustment module further comprises a tenth light emitting diode D11, the tenth light emitting diode D11 being connected in series between a sixteenth resistor R16 and the judgment module.
5. A mining intelligent multistage centrifugal pump according to claim 3, wherein said start-up module further comprises a fifteenth light emitting diode D15, said fifteenth light emitting diode D15 being connected in series between a twenty-first resistor R21 and a tenth line.
CN202210978885.7A 2022-08-16 2022-08-16 Mining intelligent multistage centrifugal pump Active CN115405527B (en)

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CN101713396A (en) * 2009-10-16 2010-05-26 孙广雨 Intelligent detection control method of vacuum pump and device thereof
US10323633B2 (en) * 2013-08-07 2019-06-18 Metropolitan Industries, Inc. Pump control system having emergency run mode
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