CN204631664U - Temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus - Google Patents
Temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus Download PDFInfo
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- CN204631664U CN204631664U CN201520382438.0U CN201520382438U CN204631664U CN 204631664 U CN204631664 U CN 204631664U CN 201520382438 U CN201520382438 U CN 201520382438U CN 204631664 U CN204631664 U CN 204631664U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 60
- 238000012806 monitoring device Methods 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000008569 process Effects 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 10
- 230000007704 transition Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
Temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus, belongs to supervisory control of substation technical field.The utility model can not effectively be monitored in order to the temperature and pressure parameter solved in existing transformer station high voltage switch hydraulic operation mechanism case, adds the problem of device security and personal safety hidden danger.It comprises remote computer, communications adapter, local monitoring device and ceramic heating device, remote computer is connected with industrial bus by communications adapter, local monitoring device is connected with industrial bus, and local monitoring device is used for carrying out computer heating control to ceramic heating device; Local monitoring device comprises governor circuit, testing circuit, display driver circuit, analog to digital conversion and temperature sensor circuit, data communication transmission circuit, Drive and Control Circuit and pressure signal acquisition process circuit.The utility model is for monitoring the temperature and pressure in transformer station's high voltage switch hydraulic operation mechanism case.
Description
Technical field
The utility model relates to temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus, belongs to supervisory control of substation technical field.
Background technology
In recent years, electric system requires more and more higher to the safe reliability of electric equipment operation.Temperature in transformer station's high voltage switch hydraulic operation mechanism case, pressure parameter directly affect the correct operation of switch.Temperature variation in transformer station's high voltage switch hydraulic operation mechanism case needs in allowed limits, if too low, hydraulic oil in hydraulic actuating mechanism can solidify, namely the concentration of hydraulic oil can change along with the change of temperature, this change may cause the force value of hydraulic actuating mechanism in case to exceed normal scope, directly can affect the correct operation of operating mechanism; If temperature is too high, can oil impregnate be produced, also will affect the normal work of operating mechanism.
At present, transformer station's high voltage switch hydraulic operation mechanism case temperature, the effective monitor and forecast means of pressure parameter neither one, generally employing ordinary temperature meter carrys out the temperature variation in inspection box, this mode lost efficacy at the lower chronothermometer of temperature, and operations staff's every day will arrive on-the-spot tour of unpacking.When temperature is lower in the winter time, field staff adopts casing to wrap up the way of cotton-wadded quilt and the common electric furnace heating wire of access, artificial manually, the input of timesharing and excision electric furnace heating wire improve temperature in case, this mode too increases the hidden danger of device security, personal safety while increasing labour intensity, and power consumption is larger; When summer, the temperature inside the box was higher, often there is again the phenomenon of hydraulic mechanism oil impregnate, can not Timeliness coverage, add the maintenance workload of equipment, affect the safe operation of equipment, due to can not effectively monitor temperature, pressure data, make operations staff can not understand the operation conditions of equipment in time, and its running environment is adjusted in time.
Summary of the invention
The utility model object can not effectively be monitored in order to the temperature and pressure parameter solved in existing transformer station high voltage switch hydraulic operation mechanism case, add the problem of device security and personal safety hidden danger, provide a kind of temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus.
Temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus described in the utility model, it comprises remote computer, communications adapter, local monitoring device and ceramic heating device,
Remote computer is connected with industrial bus by communications adapter, and local monitoring device is connected with industrial bus, and local monitoring device is used for carrying out computer heating control to ceramic heating device;
Local monitoring device comprises governor circuit, testing circuit, display driver circuit, analog to digital conversion and temperature sensor circuit, data communication transmission circuit, Drive and Control Circuit and pressure signal acquisition process circuit,
The control signal end of the control signal end connection detection circuit of governor circuit, the data detection signal output terminal of testing circuit connects the data detection signal input end of governor circuit; The display drive signals output terminal of governor circuit connects the display drive signals input end of display driver circuit; The temperature data signal end connection mode number conversion of governor circuit and the temperature data signal end of temperature sensor circuit; The transceiving data end of the transceiving data end connection data communication transceiving circuit of governor circuit, data communication transmission circuit is connected with industrial bus; The drive control signal output terminal of governor circuit connects the drive control signal input end of Drive and Control Circuit, and the drive control signal output terminal of Drive and Control Circuit connects the drive control signal input end of ceramic heating device; The signal output end of the pressure signal input end Bonding pressure signal acquisition processing circuit of governor circuit.
Local monitoring device also comprises power circuit, and power circuit is used for 220V civil power being converted to+5V power supply and exports, as the power supply of local monitoring device.
The circuit structure of local monitoring device is:
Governor circuit by model be single-chip microcomputer IC1, the crystal oscillator XT1 of AT89C51, the first electric capacity C1 and the second electric capacity C2 forms; Testing circuit is that watchdog chip IC2, the first resistance R1 of X25045 and the second resistance R2 form by model; Display driver circuit by model be display driver chip IC3, the charactron LED of ICM7218B, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 and the 11 resistance R11 form; The temperature acquisition process chip IC4 that analog to digital conversion and temperature sensor circuit are AD7416 by model forms; Data communication transmission circuit is that the data communication transceiving chip IC5 of 75LBC184 and the 3rd resistance R3 form by model; Drive and Control Circuit is that drived control chip IC 10, first inverter ic 9 – 1, second inverter ic 9 – the 2, the 3rd inverter ic 9 – 3 of ULN2003 and the 4th inverter ic 9 – 4 form by model; Analog-digital Converter chip IC 8, first operational amplifier IC7 – 1, second operational amplifier IC7 – the 2, the 12 resistance R12, the 13 resistance R13 and the 14 resistance R14 that pressure signal acquisition process circuit is TLC1549 by model form;
1 pin of single-chip microcomputer IC1 connects 1 pin of watchdog chip IC2,21 pin of single-chip microcomputer IC1 connect 5 pin of watchdog chip IC2,22 pin of single-chip microcomputer IC1 connect 6 pin of watchdog chip IC2,23 pin of single-chip microcomputer IC1 connect 2 pin of watchdog chip IC2,8 pin of watchdog chip IC2 connect power supply VCC, the first resistance R1 is connected between 8 pin of watchdog chip IC2 and 7 pin, connect the second resistance R2 between 8 pin of watchdog chip IC2 and 3 pin, 7 pin of watchdog chip IC2 connect 9 pin of single-chip microcomputer IC1; 2 pin of single-chip microcomputer IC1 connect 2 pin of temperature acquisition process chip IC4, and 3 pin of single-chip microcomputer IC1 connect 1 pin of temperature acquisition process chip IC4; 4,5,6,7 pin of temperature acquisition process chip IC4 connect rear 8 pin connecting power supply ground GND, temperature acquisition process chip IC4 and connect+5V power supplys; Connect crystal oscillator XT1 between 19 pin of single-chip microcomputer IC1 and 18 pin, also connect the first electric capacity C1 after series connection and the second electric capacity C2 between 19 pin of single-chip microcomputer IC1 and 18 pin, the terminals between the first electric capacity C1 and the second electric capacity C2 connect power supply ground GND;
39 pin of single-chip microcomputer IC1 connect 12 pin of display driver chip IC3,38 pin of single-chip microcomputer IC1 connect 11 pin of display driver chip IC3,37 pin of single-chip microcomputer IC1 connect 13 pin of display driver chip IC3,36 pin of single-chip microcomputer IC1 connect 14 pin of display driver chip IC3,35 pin of single-chip microcomputer IC1 connect 10 pin of display driver chip IC3,34 pin of single-chip microcomputer IC1 connect 6 pin of display driver chip IC3,33 pin of single-chip microcomputer IC1 connect 5 pin of display driver chip IC3, and 32 pin of single-chip microcomputer IC1 connect 7 pin of display driver chip IC3, 39 pin of single-chip microcomputer IC1 be connected the 4th resistance R4 between+5V power supply, 38 pin of single-chip microcomputer IC1 be connected the 5th resistance R5 between+5V power supply, 37 pin of single-chip microcomputer IC1 be connected the 6th resistance R6 between+5V power supply, 36 pin of single-chip microcomputer IC1 be connected the 7th resistance R7 between+5V power supply, 35 pin of single-chip microcomputer IC1 be connected the 8th resistance R8 between+5V power supply, 34 pin of single-chip microcomputer IC1 be connected the 9th resistance R9 between+5V power supply, 33 pin of single-chip microcomputer IC1 be connected the tenth resistance R10 between+5V power supply, 32 pin of single-chip microcomputer IC1 are connected the 11 resistance R11 with between+5V power supply, 16 pin of single-chip microcomputer IC1 connect 8 pin of display driver chip IC3, and 28 pin of single-chip microcomputer IC1 connect 9 pin of display driver chip IC3, 10 pin of single-chip microcomputer IC1 be connected the 3rd resistance R3 between power supply VCC, 1 pin of the 10 pin connection data communication receiving/transmission chip IC 5 of single-chip microcomputer IC1,2 pin of data communication transceiving chip IC5 are connected with 3 pin, 4 pin of the 11 pin data communication transceiving chip IC5 of single-chip microcomputer IC1,8 pin of data communication transceiving chip IC5 connect power supply VCC, 2 pin of 5 pin connection power supply ground GND, the data communication transceiving chip IC5 of data communication transceiving chip IC5 are connected rear 15 pin connecting single-chip microcomputer IC1 with 3 pin, 16 pin of display driver chip IC3 connect the A pin of charactron LED, 17 pin of display driver chip IC3 connect the B pin of charactron LED, 20 pin of display driver chip IC3 connect the C pin of charactron LED, 18 pin of display driver chip IC3 connect the D pin of charactron LED, 21 pin of display driver chip IC3 connect the E pin of charactron LED, 22 pin of display driver chip IC3 connect the F pin of charactron LED, 23 pin of display driver chip IC3 connect the G pin of charactron LED, 15 pin of display driver chip IC3 connect the DP pin of charactron LED, 4 pin of display driver chip IC3 connect the DIGT1 pin of charactron LED, 25 pin of display driver chip IC3 connect the DIGT2 pin of charactron LED, 3 pin of display driver chip IC3 connect the DIGT3 pin of charactron LED, 1 pin of display driver chip IC3 connects the DIGT4 pin of charactron LED,
4 pin of single-chip microcomputer IC1 connect the input end of the first inverter ic 9 – 1, the output terminal of the first inverter ic 9 – 1 connects 5 pins of drived control chip IC 10, 5 pin of single-chip microcomputer IC1 connect the input end of the second inverter ic 9 – 2, the output terminal of the second inverter ic 9 – 2 connects 4 pins of drived control chip IC 10, 6 pin of single-chip microcomputer IC1 connect the input end of the 3rd inverter ic 9 – 3, the output terminal of the 3rd inverter ic 9 – 3 connects 3 pins of drived control chip IC 10, 7 pin of single-chip microcomputer IC1 connect the input end of the 4th inverter ic 9 – 4, the output terminal of the 4th inverter ic 9 – 4 connects 2 pins of drived control chip IC 10, 9 pins of drived control chip IC 10 connect+5V power supply,
7 pins of the 14 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 6 pins of the 8 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 5 pins of the 27 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 1 pin of Analog-digital Converter chip IC 8 is connected rear connection+5V power supply with 8 pins, 3 pins of Analog-digital Converter chip IC 8 are connected rear with connecting power supply GND with 4 pins, 2 pins of Analog-digital Converter chip IC 8 connect the output terminal of the second operational amplifier IC7 – 2, the output terminal of the second operational amplifier IC7 – 2 is connected with inverting input, the in-phase input end of the second operational amplifier IC7 – 2 connects the output terminal of the first operational amplifier IC7 – 1, the 13 resistance R13 is connected between the output terminal of the first operational amplifier IC7 – 1 and inverting input, the inverting input of the first operational amplifier IC7 – 1 connects one end of the 12 resistance R12, the other end of the 12 resistance R12 is held as temperature signal collection V+, the in-phase input end of the first operational amplifier IC7 – 1 connects one end of the 14 resistance R14, the other end of the 14 resistance R14 is held as temperature signal collection ACOM.
Advantage of the present utility model: the utility model device adopts remote computer to be connected with communications adapter, communications adapter is connected with industrial bus, again local monitoring device built-in for transformer station's high voltage switch hydraulic operation mechanism case is connected with industrial bus, can realize to the real time on-line monitoring of high voltage switch hydraulic operation mechanism of transformer station the temperature inside the box, pressure with automatically control, there is precise control, effective, guarantee that high voltage switch hydraulic operation mechanism action is reliable, the advantages such as use safety.Also improve the automatic management level of transformer station simultaneously, can wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the theory diagram of temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus described in the utility model;
Fig. 2 is the theory diagram of local monitoring device;
Fig. 3 is the circuit theory diagrams of the interconnected relationship of governor circuit, testing circuit, display driver circuit, analog to digital conversion and temperature sensor circuit and data communication transmission circuit;
Fig. 4 is the circuit theory diagrams of Drive and Control Circuit;
Fig. 5 is the circuit theory diagrams of pressure signal acquisition process circuit;
Fig. 6 is the circuit theory diagrams of power circuit;
Fig. 7 is the body schematic diagram of local monitoring device;
Fig. 8 is the structural representation of ceramic heating device;
Fig. 9 is the schematic diagram of connector J1;
Figure 10 is the schematic diagram of connector J2;
Figure 11 is pilot relay and the heater assembly connecting circuit schematic diagram of local monitoring device.
Embodiment
Embodiment one: present embodiment is described below in conjunction with Fig. 1, Fig. 2 and Fig. 7, temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus described in present embodiment, it comprises remote computer 1, communications adapter 2, local monitoring device 3 and ceramic heating device 4
Remote computer 1 is connected with industrial bus by communications adapter 2, and local monitoring device 3 is connected with industrial bus, and local monitoring device 3 is for carrying out computer heating control to ceramic heating device 4;
Local monitoring device 3 comprises governor circuit 3-1, testing circuit 3-2, display driver circuit 3-3, analog to digital conversion and temperature sensor circuit 3-4, data communication transmission circuit 3-5, Drive and Control Circuit 3-6 and pressure signal acquisition process circuit 3-7,
The control signal end of the control signal end connection detection circuit 3-2 of governor circuit 3-1, the data detection signal output terminal of testing circuit 3-2 connects the data detection signal input end of governor circuit 3-1; The display drive signals output terminal of governor circuit 3-1 connects the display drive signals input end of display driver circuit 3-3; The temperature data signal end connection mode number conversion of governor circuit 3-1 and the temperature data signal end of temperature sensor circuit 3-4; The transceiving data end of the transceiving data end connection data communication transceiving circuit 3-5 of governor circuit 3-1, data communication transmission circuit 3-5 is connected with industrial bus; The drive control signal output terminal of governor circuit 3-1 connects the drive control signal input end of Drive and Control Circuit 3-6, and the drive control signal output terminal of Drive and Control Circuit 3-6 connects the drive control signal input end of ceramic heating device 4; The signal output end of the pressure signal input end Bonding pressure signal acquisition processing circuit 3-7 of governor circuit 3-1.
The utility model monitor to as if transformer station's high voltage switch hydraulic operation mechanism case in force value and temperature value, and control ceramic heating device 4.According to user's needs, several local monitoring device 3 and corresponding former ceramic heating device 4 can be set, the model of industrial bus can adopt RS-485, realize the temperature of all high voltage switch hydraulic operation mechanism cases in transformer station, pressure on-line monitoring and control, it supports multi-node communication, long transmission distance, receiving sensitivity is higher.RS-485 adopts balance to send, and differential received realizes communication, and adopts Shielded Twisted Pair as communication media, has the ability of stronger anti-common mode interference.Field digital signal is connected with remote computer 1 and needs level conversion; the RS232/RS485 converter that communications adapter 2 selects Wuhan boss electronics corporation to produce; built-in 600W protection against lightning strikes device and 1500V antistatic protection device, transmission range reaches 1800 meters, ensures the reliability service of system.
Embodiment two: present embodiment is described below in conjunction with Fig. 6, present embodiment is described further embodiment one, local monitoring device 3 also comprises power circuit 3-8, power circuit 3-8 is used for 220V civil power being converted to+5V power supply and exports, as the power supply of local monitoring device 3.
Embodiment three: present embodiment is described below in conjunction with Fig. 1 to Figure 11, present embodiment is described further embodiment one or two, and the circuit structure of local monitoring device 3 is:
Governor circuit 3-1 by model be single-chip microcomputer IC1, the crystal oscillator XT1 of AT89C51, the first electric capacity C1 and the second electric capacity C2 forms; Testing circuit 3-2 is that watchdog chip IC2, the first resistance R1 of X25045 and the second resistance R2 form by model; Display driver circuit 3-3 by model be display driver chip IC3, the charactron LED of ICM7218B, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 and the 11 resistance R11 form; The temperature acquisition process chip IC4 that analog to digital conversion and temperature sensor circuit 3-4 are AD7416 by model forms; Data communication transmission circuit 3-5 is that the data communication transceiving chip IC5 of 75LBC184 and the 3rd resistance R3 form by model; Drive and Control Circuit 3-6 is that drived control chip IC 10, first inverter ic 9 – 1, second inverter ic 9 – the 2, the 3rd inverter ic 9 – 3 of ULN2003 and the 4th inverter ic 9 – 4 form by model; Analog-digital Converter chip IC 8, first operational amplifier IC7 – 1, second operational amplifier IC7 – the 2, the 12 resistance R12, the 13 resistance R13 and the 14 resistance R14 that pressure signal acquisition process circuit 3-7 is TLC1549 by model form;
1 pin of single-chip microcomputer IC1 connects 1 pin of watchdog chip IC2,21 pin of single-chip microcomputer IC1 connect 5 pin of watchdog chip IC2,22 pin of single-chip microcomputer IC1 connect 6 pin of watchdog chip IC2,23 pin of single-chip microcomputer IC1 connect 2 pin of watchdog chip IC2,8 pin of watchdog chip IC2 connect power supply VCC, the first resistance R1 is connected between 8 pin of watchdog chip IC2 and 7 pin, connect the second resistance R2 between 8 pin of watchdog chip IC2 and 3 pin, 7 pin of watchdog chip IC2 connect 9 pin of single-chip microcomputer IC1; 2 pin of single-chip microcomputer IC1 connect 2 pin of temperature acquisition process chip IC4, and 3 pin of single-chip microcomputer IC1 connect 1 pin of temperature acquisition process chip IC4; 4,5,6,7 pin of temperature acquisition process chip IC4 connect rear 8 pin connecting power supply ground GND, temperature acquisition process chip IC4 and connect+5V power supplys; Connect crystal oscillator XT1 between 19 pin of single-chip microcomputer IC1 and 18 pin, also connect the first electric capacity C1 after series connection and the second electric capacity C2 between 19 pin of single-chip microcomputer IC1 and 18 pin, the terminals between the first electric capacity C1 and the second electric capacity C2 connect power supply ground GND;
39 pin of single-chip microcomputer IC1 connect 12 pin of display driver chip IC3,38 pin of single-chip microcomputer IC1 connect 11 pin of display driver chip IC3,37 pin of single-chip microcomputer IC1 connect 13 pin of display driver chip IC3,36 pin of single-chip microcomputer IC1 connect 14 pin of display driver chip IC3,35 pin of single-chip microcomputer IC1 connect 10 pin of display driver chip IC3,34 pin of single-chip microcomputer IC1 connect 6 pin of display driver chip IC3,33 pin of single-chip microcomputer IC1 connect 5 pin of display driver chip IC3, and 32 pin of single-chip microcomputer IC1 connect 7 pin of display driver chip IC3, 39 pin of single-chip microcomputer IC1 be connected the 4th resistance R4 between+5V power supply, 38 pin of single-chip microcomputer IC1 be connected the 5th resistance R5 between+5V power supply, 37 pin of single-chip microcomputer IC1 be connected the 6th resistance R6 between+5V power supply, 36 pin of single-chip microcomputer IC1 be connected the 7th resistance R7 between+5V power supply, 35 pin of single-chip microcomputer IC1 be connected the 8th resistance R8 between+5V power supply, 34 pin of single-chip microcomputer IC1 be connected the 9th resistance R9 between+5V power supply, 33 pin of single-chip microcomputer IC1 be connected the tenth resistance R10 between+5V power supply, 32 pin of single-chip microcomputer IC1 are connected the 11 resistance R11 with between+5V power supply, 16 pin of single-chip microcomputer IC1 connect 8 pin of display driver chip IC3, and 28 pin of single-chip microcomputer IC1 connect 9 pin of display driver chip IC3, 10 pin of single-chip microcomputer IC1 be connected the 3rd resistance R3 between power supply VCC, 1 pin of the 10 pin connection data communication receiving/transmission chip IC 5 of single-chip microcomputer IC1,2 pin of data communication transceiving chip IC5 are connected with 3 pin, 4 pin of the 11 pin data communication transceiving chip IC5 of single-chip microcomputer IC1,8 pin of data communication transceiving chip IC5 connect power supply VCC, 2 pin of 5 pin connection power supply ground GND, the data communication transceiving chip IC5 of data communication transceiving chip IC5 are connected rear 15 pin connecting single-chip microcomputer IC1 with 3 pin, 16 pin of display driver chip IC3 connect the A pin of charactron LED, 17 pin of display driver chip IC3 connect the B pin of charactron LED, 20 pin of display driver chip IC3 connect the C pin of charactron LED, 18 pin of display driver chip IC3 connect the D pin of charactron LED, 21 pin of display driver chip IC3 connect the E pin of charactron LED, 22 pin of display driver chip IC3 connect the F pin of charactron LED, 23 pin of display driver chip IC3 connect the G pin of charactron LED, 15 pin of display driver chip IC3 connect the DP pin of charactron LED, 4 pin of display driver chip IC3 connect the DIGT1 pin of charactron LED, 25 pin of display driver chip IC3 connect the DIGT2 pin of charactron LED, 3 pin of display driver chip IC3 connect the DIGT3 pin of charactron LED, 1 pin of display driver chip IC3 connects the DIGT4 pin of charactron LED,
4 pin of single-chip microcomputer IC1 connect the input end of the first inverter ic 9 – 1, the output terminal of the first inverter ic 9 – 1 connects 5 pins of drived control chip IC 10, 5 pin of single-chip microcomputer IC1 connect the input end of the second inverter ic 9 – 2, the output terminal of the second inverter ic 9 – 2 connects 4 pins of drived control chip IC 10, 6 pin of single-chip microcomputer IC1 connect the input end of the 3rd inverter ic 9 – 3, the output terminal of the 3rd inverter ic 9 – 3 connects 3 pins of drived control chip IC 10, 7 pin of single-chip microcomputer IC1 connect the input end of the 4th inverter ic 9 – 4, the output terminal of the 4th inverter ic 9 – 4 connects 2 pins of drived control chip IC 10, 9 pins of drived control chip IC 10 connect+5V power supply,
7 pins of the 14 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 6 pins of the 8 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 5 pins of the 27 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 1 pin of Analog-digital Converter chip IC 8 is connected rear connection+5V power supply with 8 pins, 3 pins of Analog-digital Converter chip IC 8 are connected rear with connecting power supply GND with 4 pins, 2 pins of Analog-digital Converter chip IC 8 connect the output terminal of the second operational amplifier IC7 – 2, the output terminal of the second operational amplifier IC7 – 2 is connected with inverting input, the in-phase input end of the second operational amplifier IC7 – 2 connects the output terminal of the first operational amplifier IC7 – 1, the 13 resistance R13 is connected between the output terminal of the first operational amplifier IC7 – 1 and inverting input, the inverting input of the first operational amplifier IC7 – 1 connects one end of the 12 resistance R12, the other end of the 12 resistance R12 is held as temperature signal collection V+, the in-phase input end of the first operational amplifier IC7 – 1 connects one end of the 14 resistance R14, the other end of the 14 resistance R14 is held as temperature signal collection ACOM.
Shown in Fig. 7, terminal L, N that the body 21 of supervising device 3 is at the scene arranged are alternating current 220V power supply; Terminal A, B are the terminal connecing industrial bus, this terminal A is connected with 6 pin of data communication transceiving chip IC5, this terminal B is connected with 7 pin of data communication transceiving chip IC5, the temperature signal collection V+ of terminal V+ Bonding pressure signal acquisition processing circuit 3-7 holds, and the temperature signal collection ACOM of terminal COM Bonding pressure signal acquisition processing circuit 3-7 holds; Terminal K1+, K1-are the startup contact of axial flow blower; K2+, K2-, K3+, K3-, K4+, K4-are the startup contact of ceramic heating device 4; FG is unit protection earth terminal.
Shown in Fig. 8, ceramic heating device 4 comprises well heater 16, axial flow blower 17, housing 18, air inlet 19 and air outlet 20, and housing 18 is built-in with well heater 16 and axial flow blower 17, and axial flow blower 17 is arranged on the below of well heater 16.Well heater 16 is thermistor ceramic PTC pyrotoxin.Local monitoring device 3 adopts three grades of heating according to on-site actual situations, effectively utilizes thermal source.Well heater 16 is the semiconductor functional ceramic PTC that a class has positive temperature coefficient (PTC), and before transition temperature, thermistor declines with the rising of temperature, temperature is from transition temperature, and thermistor raises with temperature and significantly increases, when certain thermal efficiency, electric current is less, obvious energy conservation.The thermistor ceramic PTC pyrotoxin of the present embodiment adopts 3 × 800W power.
Shown in Fig. 6, power circuit 3-8 is by power transformer T, and rectifier bridge, electric capacity C3, C4 are connected with three terminal regulator IC6 composition, for each built-up circuit is powered.Power circuit 3-8 is linear power supply, and power transformer T is 2W, 220/8.5V, and electric capacity C3 is electrochemical capacitor 1000uf/50V, and electric capacity C4 is the only real electric capacity of 0.1uf/50V, and the model of three terminal regulator IC6 selects LM7805.
In the utility model, governor circuit 3-1, testing circuit 3-2, display driver circuit 3-3, analog to digital conversion and temperature sensor circuit 3-4 and data communication transmission circuit 3-5 accessible site are on one piece of circuit board, Drive and Control Circuit 3-6, pressure signal acquisition process circuit 3-7 and power circuit 3-8 are integrated on another block circuit board, and two pieces of circuit boards are connected by J1, J2 two connectors respectively.As shown in Figure 9 and Figure 10.The pin of J1, J2 is connected with the respective pins in local monitoring device 3 circuit structure.
Governor circuit 3-1 is for completing the function of the data operation of monitoring device, data processing, steering logic, Function Extension.Single-chip microcomputer IC1 is 8 single-chip microcomputers, and the first electric capacity C1 and the second electric capacity C2 is 30pf, and crystal oscillator XT1 and the first electric capacity C1, the second electric capacity C2 form oscillator, provide the frequency of operation of system.Watchdog chip IC2 has WatchDog Timer, voltage monitoring and E
2pROM function, completes electrification reset by the 9 pin RESET of VCC connecting resistance R1 to singlechip chip IC1, if do not conducted interviews to watchdog chip IC2 in setting-up time during system works, then 9 pin become high level and make system reset.3 pin of watchdog chip IC2 meet+5V through resistance R2 and allow write operation.1 pin of watchdog chip IC2 is connected as chip selection signal with the pin P10 of the singlechip chip IC1 of host circuit 1, the input and output of the pin P22 connection control data of 2 pin of watchdog chip IC2 and the singlechip chip IC1 of host circuit 1.5 pin of watchdog chip IC2 are connected as serial date transfer with the pin P20 of the singlechip chip IC1 of host circuit 1,6 pin of watchdog chip IC2 are connected with the pin P21 of the singlechip chip IC1 of host circuit 1 and input as serial clock, under the control of 6 pin of watchdog chip IC2, the pin of the singlechip chip IC1 of host circuit 1 carries out read-write operation to watchdog chip IC2, watchdog chip IC2 inside 512 × 8 byte space stores use as local monitoring device parameters definite value, has the function that power down is preserved.
Display driver chip IC3 is that Intersil company produces, and it does not need additional current-limiting resistance and clock as the driving circuit of LED charactron, includes position and segment drive circuit and dynamic scan control circuit.Controlled 4 positions of charactron LED respectively by 4 pin of driving chip IC3,25 pin, 3 pin, 1 pin, 16,17,20,18,21,22,23,15 pin of driving chip IC3 meet 7 sections corresponding to A, B, C, D, E, F, G of LED charactron and radix point DP respectively.5 of driving chip IC3, 6, 7, 10, 11, 12, 13, 14 pin connect data line P00 ~ P07 mouth of singlechip chip IC1, in order to improve the driving force of data line P00 ~ P07 mouth of singlechip chip IC1, it is R4 respectively that every bar data line adds a pull-up resistor, R5, R6, R7, R8, R9, R10, R11, resistance value is 10K, 9 pin of driving chip IC3 meet the pin P27 of singlechip chip IC1 as control end, 8 pin of driving chip IC3 are connected as data input pin with the pin WR of singlechip chip IC1, write the data of display under the 9 foot control systems of driving chip IC3.
Temperature acquisition process chip IC4 is that AD company of the U.S. produces, and its Embedded serial 10 A/D analog to digital converters and digital temperature sensor, scope-55 DEG C ~ 125 DEG C, precision is 0.25 DEG C.5,6,7 pin of temperature acquisition process chip IC4 are programmable address line, all link together with ground wire GND, temperature acquisition process chip IC4 is made to be in strobe state all the time, 1 pin of temperature acquisition process chip IC4 is connected the serial-port as data input and output with the pin P12 of singlechip chip IC1,2 pin of temperature acquisition process chip IC4 are connected with the pin P11 of singlechip chip IC1 reads and writes serial clock as numeral, carries out data read-write operation at the control.
Data communication transceiving chip IC5 is as the transceiver of anti-lightning RS-485 industrial bus; complete the function of data transmission communication; in data communication transceiving chip IC5 sheet, A, B pin is connected to high-energy transition interference protection device; this structure can bear the overvoltage transition that peak value is 400W; as thunder and lightning, static discharge and alternating current fault, thus considerably improve the reliability of the anti-overvoltage transition of device.Data communication transceiving chip IC5 can directly connect with transmission line and without any need for additional protection element.1 pin of data communication transceiving chip IC5 is connected with the RXD of singlechip chip IC1 through the pull-up resistor R3 of 10K, 4 pin of data communication transceiving chip IC5 have been connected reception and the transmission of data with singlechip chip IC1TXD, 2 pin of data communication transceiving chip IC5 are connected the T1 pin of singlechip chip IC1 with 3 pin short circuits, control transceiving driver, 6,7 pin of data communication transceiving chip IC5 are connected with A, B terminal of the body 21 of local monitoring device 3 respectively and are suspended on industrial bus.The model of four phase inverters is 74LS04.The control command that singlechip chip IC1 sends is completed by pin P13 ~ P16 respectively, pin P13 ~ the P16 of singlechip chip IC1 meets inverter ic 9 – 1 respectively, IC9 – 2, 9 pin of IC9 – 3 and IC9 – 4, 5 pin, 3 pin and 13 pin, inverter ic 9 – 1, IC9 – 2, output 8 pin of IC9 – 3 and IC9 – 4, 6 pin, 4 pin, 12 pin connect 5 pin of drived control chip IC 10, 4 pin, 3 pin, 2 pin, relay K 1 in Drive and Control Circuit 3-6, K2, K3, K4 connects 12 ~ 15 pin of drived control chip IC 10 respectively, ULN2003 is the driving circuit of darlington structure, when not having a control command, the pin P13 ~ P16 of singlechip chip IC1 is high level, the corresponding actuating of relay is driven when wherein a certain position becomes low level.
The model of two operational amplifiers is LF347.Pressure signal is held by the V+ in site pressure transmitter cut-in pressure signal acquisition processing circuit 3-7 and collection ACOM holds, i.e. terminal V+ and terminal COM in Fig. 7, on-the-spot voltage signal is through operational amplifier IC7 – 1, IC7 – 2 carries out signal conversion, 1 pin of operational amplifier IC7 – 1, 2 pin, 3 pin, the resistance R12 of 10K, the resistance R14 of resistance R13 and 10K of 5K forms arithmetic element, 5 pin of operational amplifier IC7 – 2, 6 pin, 7 pin compositions penetrate a grade follower, improve load capacity, Analog-digital Converter chip IC 8 is serial 10 analog-digital converters, 2 pin of the 7 pin access Analog-digital Converter chip IC 8 of operational amplifier IC7 – 2 are as analog input, 1 pin of Analog-digital Converter chip IC 8, 4 pin are reference voltage, + 5V and GND is met respectively in circuit, chip selection signal is connected to the pin P26 of singlechip chip IC1 by connector J2, 7 pin of Analog-digital Converter chip IC 8 are input and output clock, the pin T0 being connected to singlechip chip IC1 by connector J2 holds, carry out the read-write of data under its control.6 pin of Analog-digital Converter chip IC 8 are data output end, are connected to the P17 of the pin of singlechip chip IC1 by connector J2, send singlechip chip IC1 process the data converted.
Shown in Figure 11, in figure, K1, K2, K3, K4 are the pilot relay of local monitoring device, start the built-in gauge tap of heating arrangement by it.Winter, high voltage switch hydraulic operation mechanism the temperature inside the box was closed lower than K1, K4 during setting value, start one group of thermistor ceramic PTC and axial flow blower simultaneously, hot blast is taken out of by blower fan, heat is at high voltage switch hydraulic operation mechanism case Inner eycle, device in high voltage switch hydraulic operation mechanism case is heated evenly, when high voltage switch hydraulic operation mechanism the temperature inside the box does not reach and requires, order delayed startup K2, K3 start J2, J3 make high voltage switch hydraulic operation mechanism the temperature inside the box meet the normal range of operation of operating mechanism with the two or three group of thermistor ceramic PTC; When temperature is higher than order excision thermistor ceramic PTC during setting value, make to keep certain temperature range in high voltage switch hydraulic operation mechanism case.When summer, high voltage switch hydraulic operation mechanism the temperature inside the box was higher than high temperature setting value, only have K4, J4 closed, K1, K2, K3 contact is opened, and starts axial flow blower, carries out the heat radiation of natural wind circulating cooling to hydraulic operating mechanism in high voltage switch hydraulic operation mechanism case.Need can carry out long-range fixed value modification, long-rangely to control well heater according to work on the spot.About the software program of real-time monitoring system for temp pressure of high voltage switch hydraulic operation mechanism box of converting station is according to automatic control technology and microcomputer data processing establishment, be those skilled in the art the technology be familiar with.
Claims (3)
1. a temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus, it is characterized in that, it comprises remote computer (1), communications adapter (2), local monitoring device (3) and ceramic heating device (4)
Remote computer (1) is connected with industrial bus by communications adapter (2), local monitoring device (3) is connected with industrial bus, and local monitoring device (3) is for carrying out computer heating control to ceramic heating device (4);
Local monitoring device (3) comprises governor circuit (3-1), testing circuit (3-2), display driver circuit (3-3), analog to digital conversion and temperature sensor circuit (3-4), data communication transmission circuit (3-5), Drive and Control Circuit (3-6) and pressure signal acquisition process circuit (3-7)
The control signal end of the control signal end connection detection circuit (3-2) of governor circuit (3-1), the data detection signal output terminal of testing circuit (3-2) connects the data detection signal input end of governor circuit (3-1); The display drive signals output terminal of governor circuit (3-1) connects the display drive signals input end of display driver circuit (3-3); The temperature data signal end connection mode number conversion of governor circuit (3-1) and the temperature data signal end of temperature sensor circuit (3-4); The transceiving data end of transceiving data end connection data communication transceiving circuit (3-5) of governor circuit (3-1), data communication transmission circuit (3-5) is connected with industrial bus; The drive control signal output terminal of governor circuit (3-1) connects the drive control signal input end of Drive and Control Circuit (3-6), and the drive control signal output terminal of Drive and Control Circuit (3-6) connects the drive control signal input end of ceramic heating device (4); The signal output end of the pressure signal input end Bonding pressure signal acquisition processing circuit (3-7) of governor circuit (3-1).
2. temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus according to claim 1, it is characterized in that, local monitoring device (3) also comprises power circuit (3-8), power circuit (3-8) exports, as the power supply of local monitoring device (3) for 220V civil power being converted to+5V power supply.
3. temp pressure of high voltage switch hydraulic operation mechanism box of converting station real time monitoring apparatus according to claim 1 and 2, is characterized in that, the circuit structure of local monitoring device (3) is:
Governor circuit (3-1) by model be single-chip microcomputer IC1, the crystal oscillator XT1 of AT89C51, the first electric capacity C1 and the second electric capacity C2 forms; Testing circuit (3-2) is that watchdog chip IC2, the first resistance R1 of X25045 and the second resistance R2 form by model; Display driver circuit (3-3) by model be display driver chip IC3, the charactron LED of ICM7218B, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10 and the 11 resistance R11 form; The temperature acquisition process chip IC4 that analog to digital conversion and temperature sensor circuit (3-4) are AD7416 by model forms; Data communication transmission circuit (3-5) is that the data communication transceiving chip IC5 of 75LBC184 and the 3rd resistance R3 form by model; Drive and Control Circuit (3-6) is that drived control chip IC 10, first inverter ic 9 – 1, second inverter ic 9 – the 2, the 3rd inverter ic 9 – 3 of ULN2003 and the 4th inverter ic 9 – 4 form by model; Analog-digital Converter chip IC 8, first operational amplifier IC7 – 1, second operational amplifier IC7 – the 2, the 12 resistance R12, the 13 resistance R13 and the 14 resistance R14 that pressure signal acquisition process circuit (3-7) is TLC1549 by model form;
1 pin of single-chip microcomputer IC1 connects 1 pin of watchdog chip IC2,21 pin of single-chip microcomputer IC1 connect 5 pin of watchdog chip IC2,22 pin of single-chip microcomputer IC1 connect 6 pin of watchdog chip IC2,23 pin of single-chip microcomputer IC1 connect 2 pin of watchdog chip IC2,8 pin of watchdog chip IC2 connect power supply VCC, the first resistance R1 is connected between 8 pin of watchdog chip IC2 and 7 pin, connect the second resistance R2 between 8 pin of watchdog chip IC2 and 3 pin, 7 pin of watchdog chip IC2 connect 9 pin of single-chip microcomputer IC1; 2 pin of single-chip microcomputer IC1 connect 2 pin of temperature acquisition process chip IC4, and 3 pin of single-chip microcomputer IC1 connect 1 pin of temperature acquisition process chip IC4; 4,5,6,7 pin of temperature acquisition process chip IC4 connect rear 8 pin connecting power supply ground GND, temperature acquisition process chip IC4 and connect+5V power supplys; Connect crystal oscillator XT1 between 19 pin of single-chip microcomputer IC1 and 18 pin, also connect the first electric capacity C1 after series connection and the second electric capacity C2 between 19 pin of single-chip microcomputer IC1 and 18 pin, the terminals between the first electric capacity C1 and the second electric capacity C2 connect power supply ground GND;
39 pin of single-chip microcomputer IC1 connect 12 pin of display driver chip IC3,38 pin of single-chip microcomputer IC1 connect 11 pin of display driver chip IC3,37 pin of single-chip microcomputer IC1 connect 13 pin of display driver chip IC3,36 pin of single-chip microcomputer IC1 connect 14 pin of display driver chip IC3,35 pin of single-chip microcomputer IC1 connect 10 pin of display driver chip IC3,34 pin of single-chip microcomputer IC1 connect 6 pin of display driver chip IC3,33 pin of single-chip microcomputer IC1 connect 5 pin of display driver chip IC3, and 32 pin of single-chip microcomputer IC1 connect 7 pin of display driver chip IC3, 39 pin of single-chip microcomputer IC1 be connected the 4th resistance R4 between+5V power supply, 38 pin of single-chip microcomputer IC1 be connected the 5th resistance R5 between+5V power supply, 37 pin of single-chip microcomputer IC1 be connected the 6th resistance R6 between+5V power supply, 36 pin of single-chip microcomputer IC1 be connected the 7th resistance R7 between+5V power supply, 35 pin of single-chip microcomputer IC1 be connected the 8th resistance R8 between+5V power supply, 34 pin of single-chip microcomputer IC1 be connected the 9th resistance R9 between+5V power supply, 33 pin of single-chip microcomputer IC1 be connected the tenth resistance R10 between+5V power supply, 32 pin of single-chip microcomputer IC1 are connected the 11 resistance R11 with between+5V power supply, 16 pin of single-chip microcomputer IC1 connect 8 pin of display driver chip IC3, and 28 pin of single-chip microcomputer IC1 connect 9 pin of display driver chip IC3, 10 pin of single-chip microcomputer IC1 be connected the 3rd resistance R3 between power supply VCC, 1 pin of the 10 pin connection data communication receiving/transmission chip IC 5 of single-chip microcomputer IC1,2 pin of data communication transceiving chip IC5 are connected with 3 pin, 4 pin of the 11 pin data communication transceiving chip IC5 of single-chip microcomputer IC1,8 pin of data communication transceiving chip IC5 connect power supply VCC, 2 pin of 5 pin connection power supply ground GND, the data communication transceiving chip IC5 of data communication transceiving chip IC5 are connected rear 15 pin connecting single-chip microcomputer IC1 with 3 pin, 16 pin of display driver chip IC3 connect the A pin of charactron LED, 17 pin of display driver chip IC3 connect the B pin of charactron LED, 20 pin of display driver chip IC3 connect the C pin of charactron LED, 18 pin of display driver chip IC3 connect the D pin of charactron LED, 21 pin of display driver chip IC3 connect the E pin of charactron LED, 22 pin of display driver chip IC3 connect the F pin of charactron LED, 23 pin of display driver chip IC3 connect the G pin of charactron LED, 15 pin of display driver chip IC3 connect the DP pin of charactron LED, 4 pin of display driver chip IC3 connect the DIGT1 pin of charactron LED, 25 pin of display driver chip IC3 connect the DIGT2 pin of charactron LED, 3 pin of display driver chip IC3 connect the DIGT3 pin of charactron LED, 1 pin of display driver chip IC3 connects the DIGT4 pin of charactron LED,
4 pin of single-chip microcomputer IC1 connect the input end of the first inverter ic 9 – 1, the output terminal of the first inverter ic 9 – 1 connects 5 pins of drived control chip IC 10, 5 pin of single-chip microcomputer IC1 connect the input end of the second inverter ic 9 – 2, the output terminal of the second inverter ic 9 – 2 connects 4 pins of drived control chip IC 10, 6 pin of single-chip microcomputer IC1 connect the input end of the 3rd inverter ic 9 – 3, the output terminal of the 3rd inverter ic 9 – 3 connects 3 pins of drived control chip IC 10, 7 pin of single-chip microcomputer IC1 connect the input end of the 4th inverter ic 9 – 4, the output terminal of the 4th inverter ic 9 – 4 connects 2 pins of drived control chip IC 10, 9 pins of drived control chip IC 10 connect+5V power supply,
7 pins of the 14 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 6 pins of the 8 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 5 pins of the 27 pin connecting analog digital conversion chip IC 8 of single-chip microcomputer IC1, 1 pin of Analog-digital Converter chip IC 8 is connected rear connection+5V power supply with 8 pins, 3 pins of Analog-digital Converter chip IC 8 are connected rear with connecting power supply GND with 4 pins, 2 pins of Analog-digital Converter chip IC 8 connect the output terminal of the second operational amplifier IC7 – 2, the output terminal of the second operational amplifier IC7 – 2 is connected with inverting input, the in-phase input end of the second operational amplifier IC7 – 2 connects the output terminal of the first operational amplifier IC7 – 1, the 13 resistance R13 is connected between the output terminal of the first operational amplifier IC7 – 1 and inverting input, the inverting input of the first operational amplifier IC7 – 1 connects one end of the 12 resistance R12, the other end of the 12 resistance R12 is held as temperature signal collection V+, the in-phase input end of the first operational amplifier IC7 – 1 connects one end of the 14 resistance R14, the other end of the 14 resistance R14 is held as temperature signal collection ACOM.
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