CN105116939B - A kind of aluminium section bar passivating process electrical conductivity detection control apparatus - Google Patents

Abstract

The invention discloses a kind of aluminium section bar passivating process electrical conductivity detection control apparatus, including casing and respectively loaded on the panel in the casing, liquid crystal touch screen, motherboard, power supply and measuring pump driving plate, four switch power modules, cable, alternating current supply filter, power input accessory power outlet, two-way conductance electrode cable connector, two-way temperature cable connector, four road measuring pumps drive accessory power outlet, ground terminal, CAN connects socket, power supply and measuring pump driving plate are equipped with shielding box, equipped with shielding galvanized iron plate on motherboard, on panel, its power switch button meets the button S14 in power supply and measuring pump driving plate, its power supply indicator meets the light emitting diode L17 in power supply and measuring pump driving plate, its SR meets the button S1 on motherboard；AC15~AC18 connects four switch power modules and power supply output on power supply and measuring pump driving plate, and power supply is output as three CAN terminals and powers.The present invention has the advantages that low cost of manufacture, certainty of measurement high, strong antijamming capability, easy to maintenance.

Description

A kind of aluminium section bar passivating process electrical conductivity detection control apparatus

Technical field

The invention belongs to chemical process parameter on-line checking field, it is related to the online indirect of industry spot conducting solution concentration Detection ＆ Controling, refer in particular to a kind of aluminium section bar passivating process electrical conductivity detection control apparatus.

Background technology

During chemical reaction, electrical conductivity is an important parameter of solution, and its size directly reflects leading for solution Electric energy power, and it is closely related with the concentration of electrolyte；These carry out the field of other parameters detection using electrical conductivity as intermediate variable Close, be required for a kind of stabilization, accurate conductivity detector；At present, during aluminium shape surface Passivation Treatment, due to existing Field bad environments, solution corrosion is extremely strong, possible incrustation is, it is necessary to make periodic maintenance, only the instrument of Ji Jia manufacturers of foreign countries is installed In domestic production scene, and the electric conductivity detector of domestic manufacturer's production does not almost have；Therefore, it is necessary to design a set of and seven electrodes Sensor is supporting, be capable of the aluminium section bar passivating process electrical conductivity detection control apparatus of networking, can anti-corrosion and energy anti-tartar；And from The equipment of external import is mostly expensive, maintenance maintenance is difficult.

The content of the invention

The purpose of the present invention is exactly to solve above-mentioned the shortcomings of the prior art, there is provided a kind of aluminium section bar is blunt Change process electrical conductivity detection control apparatus.Power unit is strengthened using wave filter with solid capacitor, and analog portion is all used Thousand-island forest park measuring resistance exchanges operational amplifier with precision, and all signal grounds are all connect again by safety capacitance connection shell Ground, therefore have stronger antijamming capability, due to using the accurate exchange constant current drive of point gear, there is certain anti-electrode incrustation energy Power；Circuit structure is also further simplified, and selection standard industry control liquid crystal touch screen is shown and operated to data, be easy to Standard device carries out data exchange, therefore, the present invention have certainty of measurement is high, reliability is high, function is more, low cost, intellectuality Degree is high, manufacture is easy to maintenance, can with miscellaneous equipment networking the advantages of, the present invention can not only connect seven-electrode conductivity sensing Device, can also connect four electrodes；The present invention itself has two-way electrical conductivity direct measurement with control, and range is provided with three gears, measures Scope 200uS/cm~200mS/cm, coordinating the electrode of various conductance constants can make further extension, conductance to range ability The driving frequency of rate instrument is adjustable, and it is Very High Cycle 20000Hz to fix tentatively；Additionally as main frame, three sets of single channel seven-electrode conductivities are received Electrical conductivity, temperature, switch pump, alarm signal that detection monitor is sent, and shown and controlled；First via configuration of the present invention It is the detection of pre- degreasing electrical conductivity and Adding medicine control, the second tunnel is configured to the detection of degreasing electrical conductivity and Adding medicine control, the configuration of the 3rd tunnel Once to clean electrical conductivity detection the detection of passivating process electrical conductivity and Adding medicine control, the 5th are configured to water management, the 4th tunnel is changed Road is configured to the detection of secondary washing electrical conductivity and alarm.

To achieve the above object, technical scheme provided by the present invention is：A kind of aluminium section bar passivating process electrical conductivity detection Control device, includes casing and respectively loaded on the drive of the panel in the casing, liquid crystal touch screen, motherboard, power supply and measuring pump Dynamic plate, four switch power modules, cable, alternating current supply filter, power input accessory power outlet, two-way conductance electrode cables connect Head, two-way temperature cable connector, four road measuring pumps drive accessory power outlet, ground terminal, CAN connection socket, wherein, it is described Power supply and measuring pump driving plate is separately installed shielding box, it is separately installed on the motherboard to have shielding galvanized iron plate, the liquid crystal The power supply and measuring pump of motherboard are driven plate interface and power supply and measuring pump driving plate by touch-screen loaded on panel by cable Power panel be attached with main frame plate interface, so as to realize the interconnection of power supply and switching signal between two plates；On panel, its Power switch button meets the button S14 in power supply and measuring pump driving plate, and its power supply indicator connects power supply and measuring pump driving plate On light emitting diode L17, its SR meets the button S1 on motherboard；AC15~AC18 on power supply and measuring pump driving plate Four switch power modules and power supply output are connect, the power supply is output as three CAN terminals and powers.

The panel is provided with power switch button, power supply indicator, SR；It is configured with the liquid crystal touch screen First via electrical conductivity display window, the second tunnel electrical conductivity display window, the 3rd tunnel electrical conductivity display window, the 4th tunnel electrical conductivity display window, 5th tunnel electrical conductivity display window, first electrode setting button, second electrode setting button, real-time curve button, current alerts are pressed Button, history curve button, CAN addresses display window, history alarm button, CAN communication state display window to change, the 5th tunnel temperature show Window, the 4th road temperature display device, the 3rd road temperature display device, the second road temperature display device, first via temperature display device, the 5th tunnel Alarm indication window, the 4th tunnel alarm indication window, the 3rd tunnel alarm indication window, the second tunnel alarm indication window, first via alarm indication The manual on/off switch button of window, the first via, the manual on/off switch button in the second tunnel, first via automatic/hand switching push button, Two road automatic/hand switching push buttons, first via switch pump indicate display window, the second road switch pump to indicate display window, No. threeth pump Switch indicates display window, the 4th road switch pump to indicate display window, help button；The liquid crystal touch screen is powered by external DC24V, Interface is connected by stub cable with the corresponding points on circuit board.

The circuit of the motherboard is by first in piece circuit system, mainboard digital power filter circuit, safety electric capacity one Circuit, mainboard analog power filter circuit, in piece system power supply and reset circuit, signal shift switch and analog signal limit Width protection circuit, CAN isolated drive circuit, built-in function circuit, liquid crystal touch screen input/output communication interface circuit, Display board communication interface circuit, switch output control circuit, power supply and measuring pump drive plate interface, conductance isolation analog power Filter circuit, the circuit of safety electric capacity two, the pick-up isolation circuit of temperature one, the detection of temperature one interface, conductance one are measured and exchanged and turn Direct current and isolation circuit, the detection of conductance one interface, constant current signal one drive circuit, the trip stop transmission circuit of conductance one, pumping signal One occurs circuit, precision voltage source circuit, pumping signal two there is circuit, the drive circuit of constant current signal two, the trip stop pick-up of conductance two Circuit, the detection of conductance two interface, conductance two are measured and exchanged and turn direct current and isolation circuit, the detection of temperature two interface, the change of temperature two Isolation circuit common electrical is sent to connect composition；Wherein, power supply and measuring pump drive plate interface to be used with mainboard respectively by power line Digital power filter circuit, mainboard analog power filter circuit, conductance corresponding points phase on isolation simulation electric source filter circuit Connection, so as to introduce power supply；Mainboard is total with the circuit of safety electric capacity one, CAN respectively by power line with digital power filter circuit Line isolated drive circuit, built-in function circuit, liquid crystal touch screen input/output communication interface circuit, display board communication interface electricity Road, switch output control circuit, the trip stop transmission circuit of conductance one, corresponding points are connected on the trip stop transmission circuit of conductance two；In piece System power supply and reset circuit by analog power line and numeral power line and reset line respectively with first piece circuit system, Mainboard digital power filter circuit, mainboard analog power filter circuit, signal shift switch and analog signal limited amplitude protection Corresponding points are connected on circuit, and the analog power and digital power of high-quality are provided for the system core；First is logical in piece circuit system Cross switching line respectively with built-in function circuit, switch output control circuit, the trip stop transmission circuit of conductance one, the trip stop pick-up of conductance two Corresponding points are connected on circuit；First is touched with CAN isolated drive circuit, liquid crystal respectively in piece circuit system by connection Corresponding points on screen input/output communication interface circuit, display board communication interface circuit are touched to be connected；CAN isolation drive electricity The external CANs of joint CAN5 on road, the JP4 connection lcd touches on liquid crystal touch screen input/output communication interface circuit Screen；Signal shift switch and analog signal limiter protection circuit by analog signal line respectively with first in piece circuit system, temperature Spend a pick-up isolation circuit, the measurement of conductance one and exchanging turn direct current and isolation circuit, conductance two measure with exchange turn direct current and every Corresponding points are connected in circuit, the pick-up isolation circuit of temperature two；Conductance passes through power line with isolation simulation electric source filter circuit Measure and exchange and turn direct current with the circuit of safety electric capacity two, the pick-up isolation circuit of temperature one, the detection of temperature one interface, conductance one respectively And the measurement of isolation circuit, constant current signal one drive circuit, precision voltage source circuit, the drive circuit of constant current signal two, conductance two and friendship Corresponding points are connected on circulation direct current and isolation circuit, the detection of temperature two interface, the pick-up isolation circuit of temperature two；Temperature one is detected Interface is connected by holding wire with the pick-up isolation circuit of temperature one, and outside connects the sensor of conductor temperature one；Conductance one is detected Interface is measured by holding wire and conductance one turn corresponding on direct current and isolation circuit, constant current signal one drive circuit with exchanging respectively Point is connected, and outside connects the sensor of conductance one；Constant current signal one drive circuit also becomes power transmission by holding wire with the trip stop of conductance one There are corresponding points on circuit and be connected in road, pumping signal two；Precision voltage source circuit is sent out by power line with pumping signal one respectively There are corresponding points on circuit and be connected in raw circuit, pumping signal two；The detection interface of temperature two is by holding wire and the pick-up of temperature two Isolation circuit is connected, and outside connects the sensor of conductor temperature two；The detection of conductance two interface is respectively by holding wire and conductance two Measurement turns corresponding points on direct current and isolation circuit, the drive circuit of constant current signal two and is connected with exchanging, and outside connects the sensing of conductance two Device；It is right on circuit, the trip stop transmission circuit of conductance two that the drive circuit of constant current signal two also occurs by holding wire and pumping signal two Should put and be connected.

The power supply and measuring pump driving plate are by AC220V general supplies input circuit, second in piece system power supply circuit, Two in piece circuit system, reset and on/off circuit, general supply control solid-state relay circuit, controlled source output circuit, outer Connect Switching Power Supply interface, mainboard digital power wave filter, mainboard analog power wave filter, conductance isolation digital power filter Ripple device, power panel and main frame plate interface, measuring pump control solid-state relay, measuring pump output driving interface common electrical connection group Into；Wherein, AC220V general supplies input circuit is controlled solid with second in piece system power supply circuit, general supply respectively by power line Corresponding points are connected on state relay circuit, external AC220V power supplys；Second piece circuit system by power line, reset line, Switching line is controlled on solid-state relay circuit with second in piece system power supply circuit, reset and on/off circuit, general supply respectively Corresponding points are connected；Controlled source output circuit controls solid-state relay circuit with general supply, external opens respectively by power line Corresponding points are connected on powered-down source interface；Outside connected switch power interface is filtered with mainboard with digital power respectively by power line Corresponding points are connected on device, mainboard analog power wave filter, conductance isolation digital power wave filter, and outside connects three switches Power supply；Power panel is filtered with mainboard digital power wave filter, mainboard with analog power respectively with main frame plate interface by power line Ripple device, conductance isolation digital power wave filter, measuring pump control solid-state relay corresponding points are connected, and external motherboard； Measuring pump output driving interface controls corresponding points on solid-state relay to be connected by power line and measuring pump, external four switches Control measuring pump.

Described first is common by integrated circuit U1, crystal oscillator U2, connector J1, resistance R1, electric capacity C1~C22 in piece circuit system Constituted with electrical connection；Piece system power supply and reset circuit by voltage-stablizer U3 and U4, connector J2, diode D1~D4 with D6~D7, light emitting diode D5 and D8, resistance R2~R5, electric capacity C23~C29, button S1 common electricals are connected and composed；Signal is cut Switch and analog signal limiter protection circuit are changed by electronic switch UK2, amplifier U5 and U 6, voltage stabilizing chip U 7, limited amplitude protection Chip U8, resistance RX2~RX13 and R6, electric capacity C30~C37 and CX2, light emitting diode L2 common electricals are connected and composed；Mainboard Connected and constituted by magnetic bead RL3, electric capacity C38 common electricals with digital power filter circuit；The circuit of safety electric capacity one by magnetic bead RL4, Resistance R7, safety electric capacity C39 common electricals connection composition；Mainboard analog power filter circuit is by magnetic bead RL5~RL7, electric capacity C40~C41 common electricals connection composition；Power supply and measuring pump drive plate interface to be made up of connector P3；Conductance is simulated with isolation Electric source filter circuit is made up of magnetic bead RL8~RL10, electric capacity C42~C43 common electricals connection；The circuit of safety electric capacity two is by magnetic bead RL11, resistance R8, safety electric capacity C44 common electricals connection composition；Built-in function circuit is total to by toggle switch NBJ4, exclusion R15 Constituted with electrical connection；Liquid crystal touch screen input/output communication interface circuit is by integrated circuit U9, magnetic bead RL12, connector P5 And JP4, resistance R9~R10 and R13~R14, electric capacity C46 common electricals connection composition；Display board communication interface circuit is by connecting Device P4, resistance R11~R12, electric capacity C45 common electricals connection composition；CAN isolated drive circuit is by integrated circuit U10, company Connect device CAN5, resistance R16~R17, electric capacity C47 common electricals connection composition；Switch output control circuit is by insulating power supply module U11, optocoupler U12, inductance L6~L8, resistance R18~R19 and RX14, electric capacity C48~C50 common electricals connection composition；Temperature one Pick-up isolation circuit is by amplifier U14, signal isolator U13, resistance R20~R22, electric capacity C51~C60 common electricals connection structure Into；The detection interface of temperature one is made up of connector JT7；Conductance one is measured and turns direct current and isolation circuit by amplifier U16 with exchanging And U18~U19 and U22, AC/DC signal adapter U17 and U20, signal isolator U15 and U21, resistance R23~R27, electricity Hold C61~C84 common electricals to connect and compose；The detection interface of conductance one is made up of connector JD8；Constant current signal one drive circuit by Amplifier U28 and U30~U31, resistance RO9~RO13 and RA9~RA21, electric capacity C85~C88 and C90~C91 and C93~C94 And C96~C98 common electricals are connected and composed；There is circuit by integrated circuit U29, resistance RIN9 and R34, electric capacity in pumping signal one C89 and C92 and C95 and CF9 common electricals are connected and composed；The trip stop transmission circuit of conductance one is by relay U23~U27, triode N9~N13, diode D9~D13, resistance R28~R33 common electricals are connected and composed；The pick-up isolation circuit of temperature two is by amplifier U33, signal isolator U32, resistance R35~R37, electric capacity C99~C108 common electricals are connected and composed；Temperature two detect interface by Connector JT10 is constituted；Conductance two is measured and turns direct current and isolation circuit by amplifier U34 and U37~U38 and U41, friendship with exchanging Stream direct current signal converter U36 and U39, signal isolator U35 and U40, resistance R38~R42, electric capacity C109~C134 are jointly electric Gas is connected and composed；The detection interface of conductance two is made up of connector JD11；The drive circuit of constant current signal two is by amplifier U47 and U49 ~U50, resistance RO14~RO18 and RA22~RA34, electric capacity C135~C138 and C140~C141 and C143~C144 and C146 ~C148 common electricals are connected and composed；There is circuit by integrated circuit U48, resistance RIN12 and R49, electric capacity in pumping signal two C139 and C142 and C145 and CF12 common electricals are connected and composed；The trip stop transmission circuit of conductance two is by relay U42~U46, three Pole pipe N14~N18, diode D14~D18, resistance R43~R48 common electricals are connected and composed；Precision voltage source circuit is by voltage-stablizer U51~U52, inductance L13~L16, electric capacity C149~C154 common electricals are connected and composed.

The AC220V general supplies input circuit is connected and composed by binding post AC14, twin-stage wave filter U53 common electricals； Second is common by voltage stabilizing piece U55, insulating power supply module U56, electric capacity CD14~CD15 and C155~C156 in piece system power supply circuit Constituted with electrical connection；Second is common by integrated circuit U54, connector J14 and P14~P15, exclusion R53 in piece circuit system Electrical connection is constituted；Reset with on/off circuit by button S14~S15, resistance R54~R57, electric capacity C157~C158, luminous Diode L17 common electricals are connected and composed；General supply control solid-state relay circuit is jointly electric by solid-state relay U57~U58 Gas is connected and composed；Controlled source output circuit is connected and composed by binding post AC15~AC18 common electricals；Outside connected switch power supply Interface is made up of external three Switching Power Supplies；Mainboard is jointly electric by wave filter U64, binding post DC15 with digital power wave filter Gas is connected and composed；Mainboard analog power wave filter is connected and composed by wave filter U65~U66, binding post DC16 common electricals； Conductance isolation digital power wave filter is connected and composed by wave filter U67~U68, binding post DC17 common electricals；Power panel It is made up of connector P16 with main frame plate interface；Measuring pump controls solid-state relay by solid-state relay U59~U63 common electricals Connect and compose；Measuring pump output driving interface is made up of connector QXCTLM15.

The present invention compared with prior art, has the following advantages that and beneficial effect：

1st, strong antijamming capability, disturbs larger power supply and the independent making sheet of measuring pump driving plate, and add shielding box, alternating current Source is connected to twin-stage wave filter, and direct-current switch power supply is connected to DC filter and largely uses solid capacitor, some places also to use Second level analog power is powered, so as to ensure the quality of direct current supply；System is grounded by safety electric capacity, can effectively be disappeared Except disturbing and ensure safety.

2nd, certainty of measurement is high, using precision optical machinery relay, its contact resistance very little；Alternating constant exciting circuit can be effective Ground eliminates the influence of the additional resistance that electrode surface dirt is produced；Signal input uses the instrument amplifier of high input impedance, both The influence of the additional resistance of dirt generation can be eliminated, common mode disturbances can be greatly eliminated again；It is low that analog portion all employs high frequency Drift precision amplifier and the resistance of thousand-island forest park, the precision of pick-up is input into so as to ensure that；The gear of range 1/2 is provided with public affairs Resistance slope amendment and resistance zero point amendment, to ensure precision, one/bis- road range 3 has made specially treated respectively；Due to electricity Pole outer layer is signal ground, and signal is from middle electrode emission and enters signal ground, so pumping signal will not be leaked, so as to ensure this Do not interfered between the two-way conductivity signal on ground.

3rd, compatible good, function is more, and communication is attached by using industrial standard liquid crystal touch screen, so that data are aobvious Show, be input into, alarming, curve record, inquiry etc. become easy；Fault-tolerant CAN communicates the use of isolation drive module, convenient With DCS or other systems are communicated with CAN and corresponding agreement.

4th, functional reliability is high, and using comprehensive Anti-Jamming Technique, using fault-toleranr technique, failure is only present in this module, Other no failure parts do as usual work, and when such as communication isolation drive module breaks down, overall measurement part does as usual work, and surveys The amount each road independence in electrode part, and added with protection circuit, the failure on a few roads does not interfere with other roads；With high alarm setting and report The average value of alert lower limit carries out ON/OFF amount and controls and it is not transfinited as control definite value, and control effect is good.

5th, easy to operate, internal control is completed by technical staff, and peripheral operation makees periodically adjustment, operative employee by workman People adjusts electrical conductivity alarm upper and lower limit according to process conditions, alarm signal and recording curve, in time and makees periodic cleaning to electrode .

6th, intelligence degree is high, and inner parameter has default value, is adjusted in internally being monitored by technical staff, there is many Item warning function, is easy to the position at the reason for helping failure judgement and place.

7th, can be attached with simple connector or stub cable between circuit board of the invention, manufacture, easy to maintenance, cost Low, using aluminium cabinet, whole machine radiating condition is good, and cabinet is hermetically sealed, can exempt dust, moisture and invade, using industrial standard liquid crystal Touch-screen, and the configuration software being furnished with using the liquid crystal touch screen, it is possible to achieve powerful function, good appearance is easy to operate； Anti- deadlock function, the system program is every to be had circulation and may cause the place of deadlock, and internal counter, over range is jumped automatically Go out, system design margin is larger, can in the range of 220V ± 30% normal work.

Brief description of the drawings

Fig. 1 is the contour structures schematic diagram of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention.

Fig. 2 is the motherboard circuits structural representation of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention.

Fig. 3 is the power supply and measuring pump driving plate circuit of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Structural representation.

Fig. 4 is first in piece in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Circuit system schematic diagram.

Fig. 5 is in piece system in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention With power supply and reset circuit schematic diagram.

Fig. 6 is the analog signal in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Limiter protection circuit schematic diagram.

Fig. 7 is the mainboard number in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Word electric source filter circuit, the circuit of safety electric capacity one, mainboard analog power filter circuit, power supply and measuring pump driving plate interface, Conductance isolation simulation electric source filter circuit, the schematic diagram of the circuit of safety electric capacity two.

Fig. 8 is the built-in function in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Circuit, liquid crystal touch screen input/output communication interface circuit, the schematic diagram of display board communication interface circuit.

Fig. 9 is the CAN in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention The schematic diagram of isolated drive circuit.

Figure 10 is that the switch in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention is defeated Go out to control the schematic diagram of circuit.

Figure 11 is the temperature one in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Detection interface, the schematic diagram of the pick-up isolation circuit of temperature one.

Figure 12 is the conductance one in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Measurement turns the schematic diagram of direct current and isolation circuit, the detection interface of conductance one with exchanging.

Figure 13 is the conductance one in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention There is the schematic diagram of circuit in trip stop transmission circuit, constant current signal one drive circuit, pumping signal one.

Figure 14 is the temperature two in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Detection interface, the schematic diagram of the pick-up isolation circuit of temperature two.

Figure 15 is the conductance two in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Measurement turns the schematic diagram of direct current and isolation circuit, the detection interface of conductance two with exchanging.

Figure 16 is the conductance two in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention There is the schematic diagram of circuit in trip stop transmission circuit, the drive circuit of constant current signal two, pumping signal two.

Figure 17 is the precision electricity in the motherboard circuits of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention The schematic diagram of source circuit.

Figure 18 is power supply and measuring pump the driving plate electricity of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention AC220V general supplies input circuit, second in road are in piece system power supply circuit, second in piece circuit system, reset and switching on and shutting down Circuit, general supply control solid-state relay circuit, the schematic diagram of controlled source output circuit.

Figure 19 is power supply and measuring pump the driving plate electricity of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention Outside connected switch power interface, mainboard digital power wave filter, mainboard analog power wave filter, conductance isolation number in road Word power-supply filter, power panel and main frame plate interface, measuring pump control solid-state relay, the principle of measuring pump output driving interface Figure.

Figure 20 is the main program block diagram of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention.

Figure 21 is the monitoring subroutine block diagram of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention.

Figure 22 is the timer interrupt program block diagram of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention.

Figure 23 is that the serial ports of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention receives transmission interrupt routine Block diagram.

Figure 24 is that the CAN of aluminium section bar passivating process electrical conductivity detection control apparatus of the invention receives interrupt routine block diagram.

Specific embodiment

With reference to specific embodiment, the invention will be further described.

As shown in figure 1, the aluminium section bar passivating process electrical conductivity detection control apparatus described in the present embodiment, using a size Be the casing of 290 × 250 × 450mm, be provided with casing panel, liquid crystal touch screen (standard industrial control), motherboard, power supply and Measuring pump driving plate, four switch power modules, connection cable, alternating current supply filter, power input accessory power outlet, two-way electricity Conductive electrode cable connector, two-way temperature cable connector, four road measuring pumps drive accessory power outlet, ground terminal, CAN connection to insert Seat, wherein, the power supply and measuring pump driving plate is separately installed shielding box is separately installed on the motherboard to have shielding galvanized iron The power supply and measuring pump of motherboard are driven plate interface 47 and power supply by plate, the liquid crystal touch screen loaded on panel by cable And the power panel of measuring pump driving plate is attached with main frame plate interface 75, so as to realize the power supply between two plates with switching signal Interconnection；On panel, its power switch button meets the button S14 in power supply and measuring pump driving plate, and its power supply indicator connects electricity Light emitting diode L17 on source and measuring pump driving plate, its SR meets the button S1 on motherboard；Power supply and measuring pump drive AC15~AC18 connects four switch power modules and power supply output on dynamic plate, and the power supply is output as three CAN terminals and powers.

The panel is provided with power switch button 6, power supply indicator 7, SR 16；Match somebody with somebody on the liquid crystal touch screen It is equipped with first via electrical conductivity display window 1, the second tunnel electrical conductivity display window 2, the 3rd tunnel electrical conductivity display window 3, the 4th tunnel electrical conductivity Display window 4, the 5th tunnel electrical conductivity display window 5, first electrode setting button 8, second electrode setting button 9, real-time curve button 10th, current alerts button 11, history curve button 12, CAN addresses display window 13, history alarm button 14, CAN communication state show Show that window 15, the 5th road temperature display device 17, the 4th road temperature display device 18, the 3rd road temperature display device 19, the second tunnel temperature show Show that window 20, first via temperature display device 21, the 5th tunnel alarm indication window 22, the 4th tunnel alarm indication window 23, the alarm of the 3rd tunnel are aobvious Show window 24, the second manual on/off switch button 27 of tunnel alarm indication window 25, the first via alarm indication window 26, first via, the second tunnel Manual on/off switch button 28, first via automatic/hand switching push button 29, the second road automatic/hand switching push button 30, first Road switch pump indicates display window 31, the second road switch pump to indicate display window 32, the 3rd road switch pump to indicate display window 33, the 4th tunnel Switch pump indicates display window 34, help button 35；The liquid crystal touch screen is powered by external DC24V, interface by stub cable with Corresponding points on circuit board are connected.

As shown in Fig. 2 the circuit of the motherboard by first in piece circuit system 36, mainboard digital power filter circuit 37th, circuit 38, the mainboard analog power filter circuit 39 of safety electric capacity one, in piece system power supply and reset circuit 40, signal Switching switch and analog signal limiter protection circuit 41, CAN isolated drive circuit 42, built-in function circuit 43, liquid crystal are touched Touch screen input/output communication interface circuit 44, display board communication interface circuit 45, switch output control circuit 46, power supply and meter Amount pump drives plate interface 47, conductance isolation simulation electric source filter circuit 48, the circuit 49 of safety electric capacity two, the pick-up of temperature one to isolate Circuit 50, the detection of temperature one interface 51, the measurement of conductance one and exchanging turn direct current and isolation circuit 52, conductance one detect interface 53, There is circuit 56, precision voltage source circuit in constant current signal one drive circuit 54, the trip stop transmission circuit 55 of conductance one, pumping signal one 57th, the generation of pumping signal two circuit 58, the drive circuit 59 of constant current signal two, the trip stop transmission circuit 60 of conductance two, conductance two are detected Interface 61, conductance two are measured and exchanged and turn direct current and isolation circuit 62, the detection of temperature two interface 63, the pick-up isolation circuit of temperature two 64 common electricals connection composition；Wherein, power supply and measuring pump drive plate interface 47 electric with numeral with mainboard respectively by power line Power filter 37, mainboard corresponding points phase on analog power filter circuit 39, conductance isolation simulation electric source filter circuit 48 Connection, so as to introduce power supply；Mainboard with digital power filter circuit 37 by power line respectively with the circuit 38 of safety electric capacity one, CAN isolated drive circuit 42, built-in function circuit 43, liquid crystal touch screen input/output communication interface circuit 44, display board On communication interface circuit 45, switch output control circuit 46, the trip stop transmission circuit 55 of conductance one, the trip stop transmission circuit 60 of conductance two Corresponding points are connected；Distinguished by analog power line and digital power line and reset line in piece system power supply and reset circuit 40 Cut in piece circuit system 36, mainboard digital power filter circuit 37, mainboard analog power filter circuit 39, signal with first Change corresponding points on switch and analog signal limiter protection circuit 41 to be connected, the analog power and number of high-quality are provided for the system core Word power supply；First piece circuit system 36 by switching line respectively with built-in function circuit 43, switch output control circuit 46, electricity Corresponding points on a trip stop transmission circuit 55, the trip stop transmission circuit 60 of conductance two are led to be connected；First passes through in piece circuit system 36 Connection leads to CAN isolated drive circuit 42, liquid crystal touch screen input/output communication interface circuit 44, display board respectively Corresponding points are connected on communication interface circuit 45；The external CANs of joint CAN5 on CAN isolated drive circuit 42, liquid crystal JP4 connection liquid crystal touch screens on touch-screen input/output communication interface circuit 44；Signal shift switch and analog signal amplitude limit Protection circuit 41 by analog signal line respectively with first in piece circuit system 36, the pick-up isolation circuit 50 of temperature one, conductance one Measurement with exchange turn direct current and isolation circuit 52, conductance two measure with exchange turn direct current and isolation circuit 62, the pick-up of temperature two every Corresponding points are connected on circuit 64；Conductance with isolation simulation electric source filter circuit 48 by power line respectively with safety electric capacity two Circuit 49, the pick-up isolation circuit 50 of temperature one, the detection of temperature one interface 51, conductance one are measured and exchanged and turn direct current and isolation circuit 52nd, constant current signal one drive circuit 54, precision voltage source circuit 57, the drive circuit 59 of constant current signal two, conductance two are measured and exchanged Turn corresponding points in direct current and isolation circuit 62, the detection of temperature two interface 63, the pick-up isolation circuit 64 of temperature two to be connected；Temperature one Detection interface 51 is connected by holding wire with the pick-up isolation circuit 50 of temperature one, and outside connects the sensor of conductor temperature one；Electricity Lead a detection interface 53 and measured by holding wire and conductance one respectively and turn direct current and isolation circuit 52, the drive of constant current signal one with exchanging Corresponding points are connected on dynamic circuit 54, and outside connects the sensor of conductance one；Constant current signal one drive circuit 54 also by holding wire with There are corresponding points on circuit 58 and be connected in the trip stop transmission circuit 55 of conductance one, pumping signal two；Precision voltage source circuit 57 leads to respectively Power line is crossed to be connected with corresponding points on the generation of pumping signal one circuit 56, the generation circuit 58 of pumping signal two；Temperature two is detected Interface 63 is connected by holding wire with the pick-up isolation circuit 64 of temperature two, and outside connects the sensor of conductor temperature two；Conductance two Detection interface 61 turns direct current and isolation circuit 62, constant current signal two drive electricity with exchanging by holding wire and the measurement of conductance two respectively Corresponding points are connected on road 59, and outside connects the sensor of conductance two；The drive circuit 59 of constant current signal two is also by holding wire and excitation There are corresponding points on circuit 58, the trip stop transmission circuit 60 of conductance two and be connected in signal two.

As shown in figure 3, power supply and measuring pump driving plate by AC220V general supplies input circuit 65, second in piece system power supply Circuit 66, second is in piece circuit system 67, to reset control solid-state relay circuit 69, controlled with on/off circuit 68, general supply Power output circuit 70, outside connected switch power interface 71, mainboard digital power wave filter 72, mainboard analog power wave filter 73rd, conductance controls solid-state relay 76, meter with isolation digital power wave filter 74, power panel and main frame plate interface 75, measuring pump The common electrical connection composition of amount pump output driving interface 77；Wherein, AC220V general supplies input circuit 65 is distinguished by power line Corresponding points on solid-state relay circuit 69 are controlled to be connected in piece system power supply circuit 66, general supply with second, external AC220V Power supply；Second piece circuit system 67 by power line, reset line, switching line respectively with second piece system power supply circuit 66, Reset and be connected with corresponding points on on/off circuit 68, general supply control solid-state relay circuit 69；Controlled source output circuit 70 control corresponding points on solid-state relay circuit 69, outside connected switch power interface 71 to be connected with general supply respectively by power line Connect；Outside connected switch power interface 71 is filtered with mainboard digital power wave filter 72, mainboard with analog power respectively by power line Corresponding points are connected on ripple device 73, conductance isolation digital power wave filter 74, and outside connects three Switching Power Supplies；Power panel and master Machine plate interface 75 by power line respectively with mainboard digital power wave filter 72, mainboard analog power wave filter 73, conductance The corresponding points of solid-state relay 76 are controlled to be connected with isolation digital power wave filter 74, measuring pump, external motherboard；Measuring pump is defeated Go out driving interface 77 controls corresponding points on solid-state relay 76 to be connected by power line and measuring pump, external four switches control Measuring pump.

By computer self routing motherboard circuits, identical network tag computation chance is connected to together automatically, such as Fig. 4 institutes Show, in the motherboard circuits, first in piece circuit system 36 by integrated circuit U1, crystal oscillator U2, connector J1, resistance R1, electricity Hold C1~C22 common electricals to connect and compose；As shown in figure 5, piece system power supply and reset circuit 40 by voltage-stablizer U3 and U4, Connector J2, diode D1~D4 and D6~D7, light emitting diode D5 and D8, resistance R2~R5, electric capacity C23~C29, button S1 Common electrical is connected and composed；As shown in fig. 6, signal shift switch and analog signal limiter protection circuit 41 by electronic switch UK2, Amplifier U5 and U 6, voltage stabilizing chip U 7, limited amplitude protection chip U8, resistance RX2~RX13 and R6, electric capacity C30~C37 and CX2, Light emitting diode L2 common electricals are connected and composed；As shown in fig. 7, mainboard digital power filter circuit 37 is by magnetic bead RL3, electric capacity C38 common electricals connection composition；The circuit 38 of safety electric capacity one is connected by magnetic bead RL4, resistance R7, safety electric capacity C39 common electricals Composition；Mainboard analog power filter circuit 39 is made up of magnetic bead RL5~RL7, electric capacity C40~C41 common electricals connection；Power supply And measuring pump drives plate interface 47 to be made up of connector P3；Conductance with isolation simulation electric source filter circuit 48 by magnetic bead RL8~ RL10, electric capacity C42~C43 common electricals connection composition；The circuit 49 of safety electric capacity two is by magnetic bead RL11, resistance R8, safety electric capacity C44 common electricals connection composition；As shown in figure 8, built-in function circuit 43 is connected by toggle switch NBJ4, exclusion R15 common electricals Connect composition；Liquid crystal touch screen input/output communication interface circuit 44 by integrated circuit U9, magnetic bead RL12, connector P5 and JP4, Resistance R9~R10 and R13~R14, electric capacity C46 common electricals connection composition；Display board communication interface circuit 45 by connector P4, Resistance R11~R12, electric capacity C45 common electricals connection composition；As shown in figure 9, CAN isolated drive circuit 42 is by integrated electricity Road U10, connector CAN5, resistance R16~R17, electric capacity C47 common electricals connection composition；As shown in Figure 10, output control is switched Circuit 46 is common by insulating power supply module U11, optocoupler U12, inductance L6~L8, resistance R18~R19 and RX14, electric capacity C48~C50 Constituted with electrical connection；As shown in figure 11, the pick-up isolation circuit 50 of temperature one is by amplifier U14, signal isolator U13, resistance R20~R22, electric capacity C51~C60 common electricals are connected and composed；The detection interface 51 of temperature one is made up of connector JT7；Such as Figure 12 It is shown, conductance one measure with exchange turn direct current and isolation circuit 52 by amplifier U16 and U18~U19 and U22, AC/DC letter Number converter U17 and U20, signal isolator U15 and U21, resistance R23~R27, electric capacity C61~C84 common electricals connection structure Into；The detection interface 53 of conductance one is made up of connector JD8；As shown in figure 13, constant current signal one drive circuit 54 is by amplifier U28 And U30~U31, resistance RO9~RO13 and RA9~RA21, electric capacity C85~C88 and C90~C91 and C93~C94 and C96~ C98 common electricals are connected and composed；Pumping signal one occur circuit 56 by integrated circuit U29, resistance RIN9 and R34, electric capacity C89 and C92 and C95 and CF9 common electricals are connected and composed；The trip stop transmission circuit 55 of conductance one by relay U23~U27, triode N9~ N13, diode D9~D13, resistance R28~R33 common electricals are connected and composed；As shown in figure 14, the pick-up isolation circuit of temperature two 64 are connected and composed by amplifier U33, signal isolator U32, resistance R35~R37, electric capacity C99~C108 common electricals；Temperature two Detection interface 63 is made up of connector JT10；As shown in figure 15, conductance two is measured and turns direct current and isolation circuit 62 by putting with exchanging Big device U34 and U37~U38 and U41, AC/DC signal adapter U36 and U39, signal isolator U35 and U40, resistance R38 ~R42, electric capacity C109~C134 common electricals are connected and composed；The detection interface 61 of conductance two is made up of connector JD11；Such as Figure 16 Shown, the drive circuit 59 of constant current signal two is by amplifier U47 and U49~U50, resistance RO14~RO18 and RA22~RA34, electricity Hold C135~C138 and C140~C141 and C143~C144 and C146~C148 common electricals are connected and composed；Pumping signal two is sent out Raw circuit 58 connects structure by integrated circuit U48, resistance RIN12 and R49, electric capacity C139 and C142 and C145 and CF12 common electricals Into；The trip stop transmission circuit 60 of conductance two is by relay U42~U46, triode N14~N18, diode D14~D18, resistance R43 ~R48 common electricals are connected and composed；As shown in figure 17, precision voltage source circuit 57 by voltage-stablizer U51~U52, inductance L13~L16, Electric capacity C149~C154 common electricals are connected and composed.

By computing mechanism power supply and measuring pump driving plate, identical network tag computation chance is connected to together automatically, such as Figure 18 Shown, AC220V general supplies input circuit 65 is connected and composed by binding post AC14, twin-stage wave filter U53 common electricals；Second It is common by voltage stabilizing piece U55, insulating power supply module U56, electric capacity CD14~CD15 and C155~C156 in piece system power supply circuit 66 Electrical connection is constituted；Second is common by integrated circuit U54, connector J14 and P14~P15, exclusion R53 in piece circuit system 67 Electrical connection is constituted；Reset with on/off circuit 68 by button S14~S15, resistance R54~R57, electric capacity C157~C158, hair Optical diode L17 common electricals are connected and composed；General supply control solid-state relay circuit 69 is common by solid-state relay U57~U58 Constituted with electrical connection；Controlled source output circuit 70 is connected and composed by binding post AC15~AC18 common electricals；Such as Figure 19 Shown, outside connected switch power interface 71 is made up of external three Switching Power Supplies；Mainboard digital power wave filter 72 is by wave filter U64, binding post DC15 common electricals are connected and composed；Mainboard analog power wave filter 73 is by wave filter U65~U66, wiring Terminal DC16 common electricals are connected and composed；Conductance isolation digital power wave filter 74 is by wave filter U67~U68, binding post DC17 common electricals are connected and composed；Power panel is made up of with main frame plate interface 75 connector P16；Measuring pump controls solid-state relay 76 are connected and composed by solid-state relay U59~U63 common electricals；Measuring pump output driving interface 77 is by connector QXCTLM15 groups Into.

Wherein, the optional C8051F060 of U1, U3, U4, U7, U55 optional AMS1117, UK2 optional DG403, U5 are optional The optional CTM1054 of TLE2024, U6 optional TLV2454, U8 optional TL7726, U9 optional MAX490CSA, U10；U11 is optional The optional ISO124 of B0505LS, U12 optional TLP521-4, U14, U19, U33, U38 optional INA128, U13, U32；U16、U18、 U22, U34, U37, U41 optional AD536 of optional INA111 or INA121, U17, U20, U36, U39, U15, U21, U35, U40 can Select T6650D；U29, U48 optional MAX038, U28, U47 optional LM6172 of optional LM7171, U30, U49, U31, U50 are optional OPA627, U23~U27 and U42~U46 optional CTX-5V, U51, U52 optional K7805, U54 optional C8051F330, U53 are optional CW4L2-10A-T, U56 optional AC/DC3W5V, U57, U58 optional GTJ2-8A, U59~U63 optional GTJ24-3A, U64~U68 Optional FT110PD-3, the optional SUKON-07L of liquid crystal touch screen.

Operation principle of the invention is as follows：

1) temperature-voltage signal is produced by semiconductor temperature sensor subsidiary on electrode, and millivolt signal is through cable connector Connect on motherboard；

2) the generation process of conductance millivolt signal is as follows：Exiting signal generating circuit is controlled first produces certain frequency to fix The sinusoidal signal of amplitude, the signal connects constant current signal drive circuit, after making range switching control through conductance trip stop transmission circuit, produces The certain driving constant current of life, this constant current processed through blocking after for driving conductance electrode, the constant current flow through simultaneously measuring resistance and Detection cell simultaneously produces the AC signal of respective amplitude, and the voltage of the bigger generation of cell resistance is bigger, subsequent two-way exchange Signal respectively enters ac/dc effective value converter and produces corresponding DC voltage, then through signal shift switch and simulation Main frame is sent into after the isolation of signal limiter protection circuit；

3) temperature signal produced respectively by said process enters 12 A/D converters；Cut by electronic DC switch The road conductance signals of Huan Ba tetra- send into the A/D converter port of 16 precision of two-way, enter with detection signal with reference signal all the way Enter same passage, channel error can be eliminated；The resistance at measuring cell two ends can be obtained by the simple operation of single-chip microcomputer, resistance warp After linear correcting process, accurate resistance value is obtained, the inverse of accurate resistance value is exactly to hold electric conductivity value, then through electrode conductance constant With standard conductivity value is obtained after temperature-compensating；

4) liquid is sent in the way of communicating interrupt after the encoded packing of piece system by first through each signal after treatment Brilliant touch-screen carries out the display of corresponding data；

5) first is also sent in the way of communicating interrupt in piece after all button signals on liquid crystal touch screen are encoded System, and perform corresponding operation；

6) CAN main frames send timer synchronization signal in every 0.5 second, and CAN terminal aborts receive the synchronizing signal, and with address Code size arrangement send data time period, it is ensured that data channel it is unblocked, CAN terminals send out signal have conductance Rate, temperature, measuring pump switching signal, alarm signal；

7) All hosts program and preset parameter are all stored in first in EEPROM in the piece of piece system, and computing variable is temporary In the presence of in the first RAM in piece system；

8) control of local two-way electrical conductivity is, when electrical conductivity exceedes upper and lower limit, to produce alarm, and first in piece system Using the intermediate value between upper and lower limit as control definite value, and the switch of pump is produced to export according to Positive-Negative Action, meanwhile, sent with terminal Switching signal, the alarm signal come together, produce the driving output and display alarm prompting of four road measuring pumps；

9) when system needs adjustment internal control parameter, electrode setting button is pressed, the picture is configured with multiple displays Window is respectively conductance millivolt indicating window, with reference to millivolt indicating window, end resistance value indicating window, standard conductivity indicating window, temperature value Indicating window, conductance range indicating window, range automatic/hand indicating window；The touch-screen equipped with input keyboard and makees amplitude limit to data Treatment, data input realizes that they are respectively by pressing the keyboard respectively, electrode constant button, temperature compensation coefficient button, temperature Degree slope button, zero temperature point button, the button of resistance slope 12, the button of resistance 0. 12, the calibration picture of one/bis- road range 3 are pressed Button, electrical conductivity zero-setting button, high alarm setting button, low alarm setting button, lag time button, Positive-Negative Action button, range increase Button, range subtract, return to key frame button, send HMI data to enter single-chip microcomputer button, and one/bis- path electrode setting interface is identical；It is all The data of input are equipped with power down protection treatment, note only pressing force feed HMI data and enter single-chip microcomputer button and data could be sent into Single-chip microcomputer；In order to ensure the precision of measurement, the gear of range 1/2 is provided with public resistance slope amendment and resistance zero point amendment；It is right Range 3 has made specially treated, wherein, the power taking of range 3 resistance 500,600,700,800,900,1000,2000,3000,4000, Magnitude of voltage at 5000 ohm as interpolation of linearly tabling look-up foundation.

The technical indicator and parameter of embodiments of the invention are as follows：(1) input voltage：AC220V ± 30%, 50Hz；(2) Mean power：70W；(3) the tunnel detection range of electrical conductivity one/bis-：200 μ S~200mS；(4) tunnel of fluid temperature one/bis-：0~99.9 ℃；(5) one/two-way switch control modes：Automatic or manual；(6) the on-line checking point precision of electrical conductivity one/bis-：≤ 1% (big model In enclosing)；(7) trip stop maximum detection lag time：≤ 2 seconds；(8) three road CAN terminals are mounted in addition；(9) five tunnels display report is realized It is alert, four-way switch control.

The present invention when in use, first connects alternating current 220V voltage, external connection Switching Power Supply, the electrode of conductance one/bis- and (respectively has Semiconductor temperature sensor), dosing pump one/bis-/tri-/tetra-, three road CAN terminals and its power supply, specific works step during detection For：(1) power-on；(2) memory internal parameter is adjusted；Operator can be bent according to process conditions, alarm signal and record afterwards Line, adjustment electrical conductivity up/down limits alarming value in time on liquid crystal touch screen, and periodically conductance electrode is cleaned and adjusted Zero calibration.

Main program of the present invention is shown in Figure 20, and measurement monitoring treatment subprogram is shown in Figure 21, when using for the first time：Toggle switch is set NBJ4 starts shooting, to allow first original canonical parameter is sent in RAM in piece system to implicit parameter；Then code to memory is reversed Parameter bit, completes normal boot-strap；Afterwards, the setting button of electrode 1 on pressing liquid crystal touch screen, and ginseng is input into by built-in keybad Number, they are：Electrode constant button, temperature compensation coefficient button, temperature slope button, zero temperature point button, the button of resistance slope 12, The button of resistance 0. 12, one/bis- road range 3 calibration picture, electrical conductivity zero-setting button, high alarm setting button, low alarm setting button, Lag time button, Positive-Negative Action button, return to key frame button, send HMI data to enter single-chip microcomputer button；Electrode 2 sets button Operation ibid；After the completion of parameter setting, notice that must press force feed HMI data enters single-chip microcomputer button, so, single-chip microcomputer ability Corresponding data is received, and the data are saved in internal EEPROM, in case during start next time, the memory parameter is called in automatically. Meanwhile, LCDs is also periodically flushed the data that single-chip microcomputer is sent, and they are：Conductance millivolt indicating window, with reference to millivolt indicate Window, end resistance value indicating window, standard conductivity indicating window, Temperature indication windows, conductance range indicating window, range auto-manual are indicated Window, one/bis- dataway operation interface is identical；Real-time curve, history curve are drawn using the built-in function of liquid crystal touch screen, and can be shown Realtime Alerts are alarmed with history.Temperature channel can make linear amendment by slope and zero point；It is oblique that 1/2 need of conductance range make resistance Rate 12 makees linear amendment with resistance 0. 12, and conductance range 3 will enter another picture, and record the electricity under each measuring resistance Pressure value, the makeover process needs to use a. c. resistance box；Internal system uses 25 milliseconds of Abort Timers, Figure 22 is seen, for managing Program inside reason is run and sends within every 0.5 second a CAN synchronization timing data；The serial data of main frame and liquid crystal touch screen etc. Exchange, all performed using interrupting, see Figure 23, send and be introduced into buffer circle with the data for receiving, then, come by program Process the buffering area；The data sent by three CAN terminals, are also immediately treated in the way of interrupting by main frame, see Figure 24；Electrode The adjustment of constant needs standard K CL buffer solutions, and temperature value adjustment needs thermometer；This is arrived, whole machine adjustment is finished；Peripheral operation by Workman makees adjustment regularly, appropriate.

In sum, the present apparatus can be directly realized by the detection of two-way electrical conductivity together with seven electrodes or four electrode sensors With control, outside to connect three single channel seven-electrode conductivities detection monitors by CAN, realization is to aluminium section bar passivating process Pre- degreasing electrical conductivity is detected with Adding medicine control, the detection of degreasing electrical conductivity and Adding medicine control, once cleaning electrical conductivity is detected and changes water Control, the detection of passivating process electrical conductivity and Adding medicine control, the detection of secondary washing electrical conductivity and alarm, i.e. five tunnel electrical conductivity detections add Four tunnels control；The two-way electrical conductivity detection that the present apparatus is provided for oneself has 3 gear ranges respectively, and measurement range is 200uS/cm~200mS/ Cm, the conductance electrode of supporting Different electrodes constant, measurement range can be widened further.The tunnel of the present apparatus one/bis- is independently using a point gear Precision exchange constant current drive, independent measurement, control effect are good；Due to using industrial standard liquid crystal touch screen, the screen to be furnished with Configuration software and scm software coordinate and carry out data communication and exchange, easily realize input, the output of data, system is equipped with the One electrode setting picture, second electrode setting screen, real-time curve are recorded, history curve is inquired about, current alerts show, history report Alert display, additionally, one/bis- tunnel also respectively has manual/auto control switching, manual ON/OFF pump to switch；CAN communication is indicated, System alarm is carried out to five road conductivity signals to show, entering document by help button shows page, may be viewed by help document.System It is under unified central planning to there is CAN module to be easy to other system group networks；Due to using many new technologies, the present invention to have many advantages, be manufactured into This low, process is simple, certainty of measurement high, strong antijamming capability, function are more, maintenance maintenance facilitates etc., can be widely used in During the Detection ＆ Controling of the online electrical conductivity of industry spot, it is worthy to be popularized.

The examples of implementation of the above are only the preferred embodiments of the invention, not limit implementation model of the invention with this Enclose, therefore the change that all shapes according to the present invention, principle are made, all should cover within the scope of the present invention.

Claims (6)

1. a kind of aluminium section bar passivating process electrical conductivity detection control apparatus, it is characterised in that：Include casing and be loaded on respectively and be somebody's turn to do Panel, liquid crystal touch screen, motherboard, power supply and measuring pump driving plate, four switch power modules, cable, exchanges in casing Power-supply filter, power input accessory power outlet, two-way conductance electrode cable connector, two-way temperature cable connector, four road measuring pumps Accessory power outlet, ground terminal, CAN connection socket are driven, wherein, the power supply and measuring pump driving plate is separately installed screen Box is covered, separately installed on the motherboard to have shielding galvanized iron plate, the liquid crystal touch screen is loaded on panel, by cable main frame The power supply and measuring pump of plate drive plate interface to be attached with main frame plate interface with the power panel of power supply and measuring pump driving plate, from And realize the interconnection of power supply and switching signal between two plates；On panel, its power switch button connects power supply and measuring pump drives Button S14 on plate, its power supply indicator meets the light emitting diode L17 in power supply and measuring pump driving plate, and its SR connects Button S1 on motherboard；AC15~AC18 connects four switch power modules and power supply output on power supply and measuring pump driving plate, The power supply is output as three CAN terminals and powers.

2. a kind of aluminium section bar passivating process electrical conductivity detection control apparatus according to claim 1, it is characterised in that：It is described Panel is provided with power switch button, power supply indicator, SR；First via electrical conductivity is configured with the liquid crystal touch screen Display window, the second tunnel electrical conductivity display window, the 3rd tunnel electrical conductivity display window, the 4th tunnel electrical conductivity display window, the 5th tunnel electrical conductivity Display window, first electrode setting button, second electrode setting button, real-time curve button, current alerts button, history curve are pressed Button, CAN addresses display window, history alarm button, CAN communication state display window to change, the 5th road temperature display device, the 4th tunnel temperature show Show window, the 3rd road temperature display device, the second road temperature display device, first via temperature display device, the 5th tunnel alarm indication window, the 4th Road alarm indication window, the 3rd tunnel alarm indication window, the second tunnel alarm indication window, first via alarm indication window, the first via open manually/ Switching push button, the manual on/off switch button in the second tunnel, first via automatic/hand switching push button, the second road automatic/hand is closed to cut Change button, first via switch pump indicate display window, the second road switch pump indicate display window, the 3rd road switch pump indicate display window, 4th road switch pump indicates display window, help button；The liquid crystal touch screen is powered by external DC24V, and interface passes through stub cable It is connected with the corresponding points on circuit board.

3. a kind of aluminium section bar passivating process electrical conductivity detection control apparatus according to claim 1, it is characterised in that：It is described The circuit of motherboard is by first in piece circuit system, mainboard digital power filter circuit, the circuit of safety electric capacity one, mainboard mould Intend electric source filter circuit, piece system power supply and reset circuit, signal shift switch and analog signal limiter protection circuit, CAN isolated drive circuit, built-in function circuit, liquid crystal touch screen input/output communication interface circuit, display board communication connect Mouth circuit, switch output control circuit, power supply and measuring pump drive the isolation of plate interface, conductance to simulate electric source filter circuit, peace Rule electric capacity two circuit, the pick-up isolation circuit of temperature one, the detection of temperature one interface, the measurement of conductance one turn direct current and isolate electricity with exchange There is circuit, essence in road, the detection of conductance one interface, constant current signal one drive circuit, the trip stop transmission circuit of conductance one, pumping signal one There is circuit, the drive circuit of constant current signal two, the trip stop transmission circuit of conductance two, conductance two and examine in cipher telegram source circuit, pumping signal two Survey interface, the measurement of conductance two and exchange and turn direct current and isolation circuit, temperature two and detect that interface, the pick-up isolation circuit of temperature two are common Electrical connection composition；Wherein, power supply and measuring pump drive plate interface to use digital power filtered electrical with mainboard respectively by power line Road, mainboard analog power filter circuit, conductance isolation are simulated corresponding points on electric source filter circuit and are connected, so as to introduce electricity Source；Mainboard with digital power filter circuit by power line respectively with the circuit of safety electric capacity one, CAN isolated drive circuit, Built-in function circuit, liquid crystal touch screen input/output communication interface circuit, display board communication interface circuit, switch output control Corresponding points are connected on circuit, the trip stop transmission circuit of conductance one, the trip stop transmission circuit of conductance two；In piece system power supply and reset Circuit is filtered in piece circuit system, mainboard with first with digital power respectively by analog power line and digital power line and reset line Wave circuit, mainboard analog power filter circuit, signal shift switch and on analog signal limiter protection circuit corresponding points be connected Connect, the analog power and digital power of high-quality are provided for the system core；First piece circuit system by switching line respectively with it is interior Corresponding points are connected on portion's operation circuit, switch output control circuit, the trip stop transmission circuit of conductance one, the trip stop transmission circuit of conductance two Connect；First is led to CAN isolated drive circuit, liquid crystal touch screen input/output respectively in piece circuit system by connection Corresponding points are connected on communication interface circuit, display board communication interface circuit；Outside joint CAN5 on CAN isolated drive circuit CAN is connect, the JP4 connection liquid crystal touch screens on liquid crystal touch screen input/output communication interface circuit；Signal shift switch and Analog signal limiter protection circuit by analog signal line respectively with first piece circuit system, the pick-up isolation circuit of temperature one, Conductance one measures and turn direct current and isolation circuit, conductance two and to measure turn direct current and isolation circuit, the pick-up of temperature two with exchanging with exchanging Corresponding points are connected in isolation circuit；Conductance is electric with safety electric capacity two respectively by power line with isolation simulation electric source filter circuit Road, the pick-up isolation circuit of temperature one, the detection of temperature one interface, conductance one are measured and exchanged and turn direct current and isolation circuit, constant current letter Number one drive circuit, precision voltage source circuit, the drive circuit of constant current signal two, the measurement of conductance two turn direct current and isolate electricity with exchange Road, temperature two detect that corresponding points are connected in interface, the pick-up isolation circuit of temperature two；Temperature one detection interface by holding wire with The pick-up isolation circuit of temperature one is connected, and outside connects the sensor of conductor temperature one；The detection interface of conductance one passes through signal respectively Line and conductance one measure and turn corresponding points on direct current and isolation circuit, constant current signal one drive circuit and be connected with exchanging, and outside connects The sensor of conductance one；Constant current signal one drive circuit is also sent out by holding wire with the trip stop transmission circuit of conductance one, pumping signal two Corresponding points are connected on raw circuit；There is circuit, pumping signal with pumping signal one by power line respectively in precision voltage source circuit Corresponding points are connected on two generation circuits；The detection interface of temperature two is connected by holding wire with the pick-up isolation circuit of temperature two, Outside connects the sensor of conductor temperature two；The detection of conductance two interface turns direct current with exchanging by holding wire and the measurement of conductance two respectively And corresponding points are connected on isolation circuit, the drive circuit of constant current signal two, outside connects the sensor of conductance two；Constant current signal two drives Also there are corresponding points on circuit, the trip stop transmission circuit of conductance two by holding wire and pumping signal two and be connected in circuit.

4. a kind of aluminium section bar passivating process electrical conductivity detection control apparatus according to claim 1, it is characterised in that：It is described Power supply and measuring pump driving plate are by AC220V general supplies input circuit, second in piece system power supply circuit, second in piece system electricity Road, reset and on/off circuit, general supply control solid-state relay circuit, controlled source output circuit, outside connected switch power supply connect Mouth, mainboard digital power wave filter, mainboard analog power wave filter, conductance isolation digital power wave filter, power panel Composition is connected with main frame plate interface, measuring pump control solid-state relay, measuring pump output driving interface common electrical；Wherein, AC220V general supplies input circuit controls solid-state relay with second in piece system power supply circuit, general supply respectively by power line Corresponding points are connected on circuit, external AC220V power supplys；Second is divided in piece circuit system by power line, reset line, switching line Corresponding points phase on solid-state relay circuit is not controlled with second in piece system power supply circuit, reset and on/off circuit, general supply Connection；Controlled source output circuit controls solid-state relay circuit, outside connected switch power supply to connect with general supply respectively by power line Corresponding points are connected on mouth；Outside connected switch power interface is used with mainboard digital power wave filter, mainboard respectively by power line Corresponding points are connected on analog power wave filter, conductance isolation digital power wave filter, and outside connects three Switching Power Supplies；Power supply Plate and main frame plate interface by power line respectively with mainboard digital power wave filter, mainboard analog power wave filter, conductance Solid-state relay corresponding points are controlled to be connected with isolation digital power wave filter, measuring pump, and external motherboard；Measuring pump is exported Driving interface controls corresponding points on solid-state relay to be connected by power line and measuring pump, external four switches control metering Pump.

5. a kind of aluminium section bar passivating process electrical conductivity detection control apparatus according to claim 3, it is characterised in that：It is described First connects structure in piece circuit system by integrated circuit U1, crystal oscillator U2, connector J1, resistance R1, electric capacity C1~C22 common electricals Into；Piece system power supply and reset circuit by voltage-stablizer U3 and U4, connector J2, diode D1~D4 and D6~D7, light Diode D5 and D8, resistance R2~R5, electric capacity C23~C29, button S1 common electricals are connected and composed；Signal shift switch and mould Intend signal limiter protection circuit by electronic switch UK2, amplifier U5 and U 6, voltage stabilizing chip U 7, limited amplitude protection chip U8, resistance RX2~RX13 and R6, electric capacity C30~C37 and CX2, light emitting diode L2 common electricals are connected and composed；Mainboard is filtered with digital power Wave circuit is made up of magnetic bead RL3, the connection of electric capacity C38 common electricals；The circuit of safety electric capacity one is by magnetic bead RL4, resistance R7, safety electricity Hold C39 common electricals connection composition；Mainboard is jointly electric by magnetic bead RL5~RL7, electric capacity C40~C41 with analog power filter circuit Gas connection composition；Power supply and measuring pump drive plate interface to be made up of connector P3；Conductance with isolation simulation electric source filter circuit by Magnetic bead RL8~RL10, electric capacity C42~C43 common electricals connection composition；The circuit of safety electric capacity two is by magnetic bead RL11, resistance R8, peace Rule electric capacity C44 common electrical connection compositions；Built-in function circuit is made up of toggle switch NBJ4, the connection of exclusion R15 common electricals； Liquid crystal touch screen input/output communication interface circuit by integrated circuit U9, magnetic bead RL12, connector P5 and JP4, resistance R9~ R10 and R13~R14, electric capacity C46 common electricals connection composition；Display board communication interface circuit by connector P4, resistance R11~ R12, electric capacity C45 common electricals connection composition；CAN isolated drive circuit is by integrated circuit U10, connector CAN5, resistance R16~R17, electric capacity C47 common electricals connection composition；Switch output control circuit is by insulating power supply module U11, optocoupler U12, electricity Sense L6~L8, resistance R18~R19 and RX14, electric capacity C48~C50 common electricals connection composition；The pick-up isolation circuit of temperature one by Amplifier U14, signal isolator U13, resistance R20~R22, electric capacity C51~C60 common electricals are connected and composed；Temperature one is detected Interface is made up of connector JT7；Conductance one measure with exchange turn direct current and isolation circuit by amplifier U16 and U18~U19 and U22, AC/DC signal adapter U17 and U20, signal isolator U15 and U21, resistance R23~R27, electric capacity C61~C84 are common Constituted with electrical connection；The detection interface of conductance one is made up of connector JD8；Constant current signal one drive circuit by amplifier U28 and U30~U31, resistance RO9~RO13 and RA9~RA21, electric capacity C85~C88 and C90~C91 and C93~C94 and C96~C98 Common electrical is connected and composed；Pumping signal one occur circuit by integrated circuit U29, resistance RIN9 and R34, electric capacity C89 and C92 and C95 and CF9 common electricals are connected and composed；The trip stop transmission circuit of conductance one is by relay U23~U27, triode N9~N13, two Pole pipe D9~D13, resistance R28~R33 common electricals are connected and composed；The pick-up isolation circuit of temperature two by amplifier U33, signal every Connected and composed from device U32, resistance R35~R37, electric capacity C99~C108 common electricals；Temperature two detects interface by connector JT10 Composition；Conductance two is measured and turns direct current and isolation circuit by amplifier U34 and U37~U38 and U41, AC/DC signal with exchanging Converter U36 and U39, signal isolator U35 and U40, resistance R38~R42, electric capacity C109~C134 common electricals connection structure Into；The detection interface of conductance two is made up of connector JD11；The drive circuit of constant current signal two is by amplifier U47 and U49~U50, electricity Resistance RO14~RO18 and RA22~RA34, electric capacity C135~C138 and C140~C141 and C143~C144 and C146~C148 are common Constituted with electrical connection；There is circuit by integrated circuit U48, resistance RIN12 and R49, electric capacity C139 and C142 in pumping signal two And C145 and CF12 common electricals are connected and composed；The trip stop transmission circuit of conductance two by relay U42~U46, triode N14~ N18, diode D14~D18, resistance R43~R48 common electricals are connected and composed；Precision voltage source circuit by voltage-stablizer U51~U52, Inductance L13~L16, electric capacity C149~C154 common electricals are connected and composed.

6. a kind of aluminium section bar passivating process electrical conductivity detection control apparatus according to claim 4, it is characterised in that：It is described AC220V general supplies input circuit is connected and composed by binding post AC14, twin-stage wave filter U53 common electricals；Second in piece system Power circuit connects structure by voltage stabilizing piece U55, insulating power supply module U56, electric capacity CD14~CD15 and C155~C156 common electricals Into；Second is connected and composed in piece circuit system by integrated circuit U54, connector J14 and P14~P15, exclusion R53 common electricals； Reset common by button S14~S15, resistance R54~R57, electric capacity C157~C158, light emitting diode L17 with on/off circuit Electrical connection is constituted；General supply control solid-state relay circuit is connected and composed by solid-state relay U57~U58 common electricals；Receive Control power output circuit is connected and composed by binding post AC15~AC18 common electricals；Outside connected switch power interface is by external three Switching Power Supply is constituted；Mainboard digital power wave filter is connected and composed by wave filter U64, binding post DC15 common electricals；It is main Plate analog power wave filter is connected and composed by wave filter U65~U66, binding post DC16 common electricals；Conductance isolation number Word power-supply filter is connected and composed by wave filter U67~U68, binding post DC17 common electricals；Power panel and main frame plate interface It is made up of connector P16；Measuring pump control solid-state relay is connected and composed by solid-state relay U59~U63 common electricals；Metering Pump output driving interface is made up of connector QXCTLM15.