CN105116939A - Aluminum profile passivation process conductivity detection control device - Google Patents

Abstract

The present invention discloses an aluminum profile passivation process conductivity detection control device. The aluminum profile passivation process conductivity detection control device comprises a chassis, and a panel, a liquid crystal touch screen, a motherboard, a power supply and metering pump driver board, four switch power supply modules, a cable, an AC power supply filter, a power supply input/output socket, two conductivity electrode cable joints, two temperature cable joints, four metering pump driving outputting sockets, a grounding terminal and a CAN bus connection socket which are arranged in the chassis. The power supply and metering pump driver board is equipped with a shielding box, and the motherboard is equipped with a shielding galvanized iron board. A power supply switch button on the panel is connected with a button S14 on the power supply and metering pump driver board, a power supply indicating lamp is connected with a light-emitting diode L17 on the power supply and metering pump driver board, and a reset button is connected with a button S1 on the motherboard. The wiring terminals AC15-AC18 on the power supply and metering pump driver board are connected with the four switch power supply modules and a power supply output, and the power supply output supplies power to three CAN terminals. The aluminum profile passivation process conductivity detection control device of the present invention has the advantages of low manufacturing cost, high measurement precision, strong anti-interference capability, convenient maintenance, etc.

Description

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

Technical field

The invention belongs to chemical process parameter on-line checkingi field, relate to online indirect detection and the control of industry spot conducting solution concentration, refer in particular to a kind of aluminium section bar passivating process conductivity detection control apparatus.

Background technology

In chemical reaction process, conductivity is an important parameter of solution, and its size directly reflects the conductive capability of solution, and closely related with electrolytical concentration; These carry out the occasion of other parameter detecting using conductivity as intermediate variable, all need a kind of stable, accurate conductivity detector; At present, in aluminium shape surface Passivation Treatment process, because site environment is severe, solution corrosion is extremely strong, possibility incrustation, need to do periodic maintenance, only have the instrument of external Ji Jia manufacturer to be installed on domestic production scene, and the electric conductivity detector that domestic manufacturer produces almost does not have; Therefore, must design a set of supporting with seven electrode sensors, can the aluminium section bar passivating process conductivity detection control apparatus of networking, can anticorrosion again can anti-tartar; And mostly expensive from the equipment of external import, maintenance maintenance is difficult.

Summary of the invention

Object of the present invention is exactly to solve above-mentioned the deficiencies in the prior art part, provides a kind of aluminium section bar passivating process conductivity detection control apparatus.Power unit adopts wave filter and solid capacitor to strengthen, simulation part all adopts thousand-island forest park measuring resistance to exchange operational amplifier with precision, all signal grounds all pass through safety electric capacity connected with outer casing ground connection again, therefore stronger antijamming capability is had, owing to adopting, point gear is accurate exchanges constant current drive, has certain anti-electrode incrustation ability; Circuit structure has also done simplification further, selection standard industry control liquid crystal touch screen carries out showing to data and operates, be convenient to carry out exchanges data with standard device, therefore, the present invention has that measuring accuracy is high, reliability is high, function is many, cost is low, intelligence degree is high, it is easy to maintenance to manufacture, can with the advantages such as miscellaneous equipment networking, the present invention not only can connect seven-electrode conductivity sensor, also can to connect four electrodes; The present invention self has the direct Measurement & Control of two-way electrical conductivity, range is provided with three gears, measurement range 200uS/cm ~ 200mS/cm, coordinates the electrode of various conductance constant can do further expansion to range ability, the excitation frequency of conductivity meter is adjustable, fixes tentatively as Very High Cycle 20000Hz; In addition as main frame, receive conductivity, temperature, switch pump, alerting signal that three cover single channel seven-electrode conductivity test and monitoring instrument are sent here, and carry out showing and control; The first via of the present invention is configured to pre-degreasing conductivity and detects and Adding medicine control, second tunnel is configured to degreasing conductivity and detects and Adding medicine control, 3rd tunnel is configured to once to clean conductivity and detects and change water management, 4th tunnel is configured to passivating process conductivity and detects and Adding medicine control, and the 5th tunnel is configured to secondary washing conductivity testing and alarm.

For achieving the above object, technical scheme provided by the present invention is: a kind of aluminium section bar passivating process conductivity detection control apparatus, the panel including casing and be loaded on respectively in this casing, liquid crystal touch screen, motherboard, power supply and volume pump drive plate, four switch power modules, cable, alternating current supply filter, power supply input-output socket, two-way conductance electrode cable splice, two-way temperature cable splice, four road volume pump driver output sockets, ground terminal, CAN gang socket, wherein, described power supply and volume pump drive plate are provided with shielding box separately, described motherboard is provided with separately shielding galvanized iron plate, described liquid crystal touch screen is loaded on panel, by cable, the power supply of motherboard and volume pump drive plate interface are connected with motherboard interface with the power panel of power supply and volume pump drive plate, thus the interconnection of the power supply realized between two plates and switching signal, on panel, its power switch button meets the button S14 on power supply and volume pump drive plate, and its power light meets the light emitting diode L17 on power supply and volume pump drive plate, and its reset button meets the button S1 on motherboard, on power supply and volume pump drive plate, AC15 ~ AC18 connects four switch power modules and power supply exports, and it is that three CAN terminals are powered that this power supply exports.

Described panel is provided with power switch button, power light, reset button, described liquid crystal touch screen is configured with first via conductivity display window, second tunnel conductivity display window, 3rd tunnel conductivity display window, 4th tunnel conductivity display window, 5th tunnel conductivity display window, first electrode setting button, second electrode setting button, real-time curve button, current alerts button, history curve button, CAN address display window, history alarm button, CAN communication state display window to change, 5th road temperature display device, 4th road temperature display device, 3rd road temperature display device, second road temperature display device, first via temperature display device, 5th tunnel alarm indication window, 4th tunnel alarm indication window, 3rd tunnel alarm indication window, second tunnel alarm indication window, first via alarm indication window, the manual on/off switch button of the first via, the second manual on/off switch button in tunnel, first via automatic/hand switching push button, second road automatic/hand switching push button, first via switch pump instruction display window, second road switch pump instruction display window, 3rd road switch pump instruction display window, 4th road switch pump instruction display window, help button, described liquid crystal touch screen is powered by external DC24V, and interface is connected with the corresponding point on circuit board by stub cable.

The circuit of described motherboard by first at sheet circuit system, mainboard digital power filtering circuit, safety electric capacity one circuit, mainboard analog power filtering circuit, at sheet system power supply and reset circuit, signal shift switch and simulating signal limiter protection circuit, CAN isolated drive circuit, built-in function circuit, liquid crystal touch screen I/O communication interface circuit, display board communication interface circuit, switch output control circuit, power supply and volume pump drive plate interface, conductance isolation simulation electric source filter circuit, safety electric capacity two circuit, temperature one becomes send buffer circuit, temperature one detects interface, conductance one is measured and is turned direct current and buffer circuit with exchanging, conductance one detects interface, constant current signal one drive circuit, conductance one trip stop transmission circuit, pumping signal one circuit for generating, precision voltage source circuit, pumping signal two circuit for generating, constant current signal two driving circuit, conductance two trip stop transmission circuit, conductance two detects interface, conductance two is measured and is turned direct current and buffer circuit with exchanging, temperature two detects interface, temperature two becomes send buffer circuit common electrical to connect to form, wherein, power supply and volume pump drive plate interface are isolated with mainboard digital power filtering circuit, mainboard analog power filtering circuit, conductance respectively by power lead and are simulated corresponding point on electric source filter circuit and be connected, thus introduce power supply, mainboard digital power filtering circuit is connected with corresponding point on safety electric capacity one circuit, CAN isolated drive circuit, built-in function circuit, liquid crystal touch screen I/O communication interface circuit, display board communication interface circuit, switch output control circuit, conductance one trip stop transmission circuit, conductance two trip stop transmission circuit respectively by power lead, sheet system power supply and reset circuit by analog power line and digital power line and reset line respectively with first on sheet circuit system, mainboard digital power filtering circuit, mainboard analog power filtering circuit, signal shift switch and simulating signal limiter protection circuit corresponding point be connected, for the system core provides analog power and the digital power of high-quality, first is connected with corresponding point on built-in function circuit, switch output control circuit, conductance one trip stop transmission circuit, conductance two trip stop transmission circuit by switching line respectively at sheet circuit system, first is connected with corresponding point on CAN isolated drive circuit, liquid crystal touch screen I/O communication interface circuit, display board communication interface circuit by connection respectively at sheet circuit system, the external CAN of joint CAN5 on CAN isolated drive circuit, the JP4 on liquid crystal touch screen I/O communication interface circuit connects liquid crystal touch screen, and display board communication interface circuit is temporarily without connecting, signal shift switch and simulating signal limiter protection circuit become in sheet circuit system, temperature one with first respectively by analog signal line send buffer circuit, conductance one measure with exchange turn direct current and buffer circuit, conductance two measure with exchange turn direct current and buffer circuit, temperature two change send corresponding point on buffer circuit to be connected, conductance isolation simulation electric source filter circuit become with safety electric capacity two circuit, temperature one respectively by power lead send buffer circuit, temperature one detects interface, conductance one measure with exchange turn direct current and buffer circuit, constant current signal one drive circuit, precision voltage source circuit, constant current signal two driving circuit, conductance two measure with exchange turn direct current and buffer circuit, temperature two detects interface, temperature two change send corresponding point on buffer circuit to be connected, temperature one detects interface and send buffer circuit to be connected by signal wire with temperature one change, and outside connects conductor temperature one sensor, conductance one detects interface and measures respectively by signal wire and conductance one and turn corresponding point on direct current and buffer circuit, constant current signal one drive circuit and be connected with exchanging, and outside connects conductance one sensor, constant current signal one drive circuit is also connected with corresponding point on conductance one trip stop transmission circuit, pumping signal two circuit for generating by signal wire, precision voltage source circuit is connected with corresponding point on pumping signal one circuit for generating, pumping signal two circuit for generating respectively by power lead, temperature two detects interface and send buffer circuit to be connected by signal wire with temperature two change, and outside connects conductor temperature two sensor, conductance two detects interface and measures respectively by signal wire and conductance two and turn corresponding point on direct current and buffer circuit, constant current signal two driving circuit and be connected with exchanging, and outside connects conductance two sensor, constant current signal two driving circuit is also connected with corresponding point on pumping signal two circuit for generating, conductance two trip stop transmission circuit by signal wire.

Described power supply and volume pump drive plate are by AC220V general supply input circuit, second at sheet system power supply circuit, second at sheet circuit system, reset and on/off circuit, general supply controls solid-state relay circuit, controlled source output circuit, outside connected switch power interface, mainboard digital power wave filter, mainboard analog power wave filter, conductance isolation digital power wave filter, power panel and motherboard interface, volume pump controls solid-state relay, volume pump exports and drives interface common electrical to connect to form, wherein, AC220V general supply input circuit is controlled corresponding point on solid-state relay circuit and is connected in sheet system power supply circuit, general supply, external AC220V power supply with second by power lead respectively, second sheet circuit system by power lead, reset line, switching line respectively with second at sheet system power supply circuit, resetting controls corresponding point on solid-state relay circuit with on/off circuit, general supply and is connected, controlled source output circuit controls corresponding point on solid-state relay circuit, outside connected switch power interface respectively by power lead and is connected with general supply, outside connected switch power interface is isolated corresponding point on digital power wave filter and is connected with mainboard digital power wave filter, mainboard analog power wave filter, conductance by power lead respectively, and outside connects three Switching Power Supplies, power panel isolates digital power wave filter with mainboard digital power wave filter, mainboard analog power wave filter, conductance with motherboard interface respectively by power lead, volume pump controls solid-state relay corresponding point and is connected, and external motherboard, volume pump output driving interface controls corresponding point on solid-state relay by power lead and volume pump and is connected, external four switch control rule volume pumps.

Described first is connected and composed by integrated circuit U1, crystal oscillator U2, connector J1, resistance R1, electric capacity C1 ~ C22 common electrical at sheet circuit system; Connected and composed by voltage stabilizer 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 at sheet system power supply and reset circuit; Signal shift switch and simulating signal limiter protection circuit are connected and composed by electronic switch UK2, amplifier U5 and U6, voltage stabilizing chip U7, limited amplitude protection chip U8, resistance RX2 ~ RX13 and R6, electric capacity C30 ~ C37 and CX2, light emitting diode L2 common electrical; Mainboard digital power filtering circuit is connected to form by magnetic bead RL3, electric capacity C38 common electrical; Safety electric capacity one circuit is connected to form by magnetic bead RL4, resistance R7, safety electric capacity C39 common electrical; Mainboard analog power filtering circuit is connected to form by magnetic bead RL5 ~ RL7, electric capacity C40 ~ C41 common electrical; Power supply and volume pump drive plate interface are made up of connector P3; Conductance isolation simulation electric source filter circuit is connected to form by magnetic bead RL8 ~ RL10, electric capacity C42 ~ C43 common electrical; Safety electric capacity two circuit is connected to form by magnetic bead RL11, resistance R8, safety electric capacity C44 common electrical; Built-in function circuit is connected to form by toggle switch NBJ4, exclusion R15 common electrical; Liquid crystal touch screen I/O communication interface circuit is connected to form by integrated circuit U9, magnetic bead RL12, connector P5 and JP4, resistance R9 ~ R10 and R13 ~ R14, electric capacity C46 common electrical; Display board communication interface circuit is connected to form by connector P4, resistance R11 ~ R12, electric capacity C45 common electrical; CAN isolated drive circuit is connected to form by integrated circuit U10, connector CAN5, resistance R16 ~ R17, electric capacity C47 common electrical; Switch output control circuit is connected to form by insulating power supply module U11, optocoupler U12, inductance L 6 ~ L8, resistance R18 ~ R19 and RX14, electric capacity C48 ~ C50 common electrical; Temperature one becomes send buffer circuit to be connected and composed by amplifier U14, signal isolator U13, resistance R20 ~ R22, electric capacity C51 ~ C60 common electrical; Temperature one detects interface and is made up of connector JT7; Conductance one is measured and is turned direct current and buffer circuit is connected and composed by amplifier U16 and U18 ~ U19 and U22, AC/DC signal converter U17 and U20, signal isolator U15 and U21, resistance R23 ~ R27, electric capacity C61 ~ C84 common electrical with exchanging; Conductance one detects interface and is made up of connector JD8; Constant current signal one drive circuit is connected and composed 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; Pumping signal one circuit for generating is connected and composed by integrated circuit U29, resistance RIN9 and R34, electric capacity C89 and C92 and C95 and CF9 common electrical; Conductance one trip stop transmission circuit is connected and composed by relay U23 ~ U27, triode N9 ~ N13, diode D9 ~ D13, resistance R28 ~ R33 common electrical; Temperature two becomes send buffer circuit to be connected and composed by amplifier U33, signal isolator U32, resistance R35 ~ R37, electric capacity C99 ~ C108 common electrical; Temperature two detects interface and is made up of connector JT10; Conductance two is measured and is turned direct current and buffer circuit is connected and composed by amplifier U34 and U37 ~ U38 and U41, AC/DC signal converter U36 and U39, signal isolator U35 and U40, resistance R38 ~ R42, electric capacity C109 ~ C134 common electrical with exchanging; Conductance two detects interface and is made up of connector JD11; Constant current signal two driving circuit is connected and composed 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 electrical; Pumping signal two circuit for generating is connected and composed by integrated circuit U48, resistance RIN12 and R49, electric capacity C139 and C142 and C145 and CF12 common electrical; Conductance two trip stop transmission circuit is connected and composed by relay U42 ~ U46, triode N14 ~ N18, diode D14 ~ D18, resistance R43 ~ R48 common electrical; Precision voltage source circuit is connected and composed by voltage stabilizer U51 ~ U52, inductance L 13 ~ L16, electric capacity C149 ~ C154 common electrical.

Described AC220V general supply input circuit is connected and composed by connection terminal AC14, twin-stage wave filter U53 common electrical; Second is connected and composed by voltage stabilizing sheet U55, insulating power supply module U56, electric capacity CD14 ~ CD15 and C155 ~ C156 common electrical at sheet system power supply circuit; Second is connected and composed by integrated circuit U54, connector J14 and P14 ~ P15, exclusion R53 common electrical at sheet circuit system; Reset and on/off circuit are connected and composed by button S14 ~ S15, resistance R54 ~ R57, electric capacity C157 ~ C158, light emitting diode L17 common electrical; General supply controls solid-state relay circuit and is connected and composed by solid-state relay U57 ~ U58 common electrical; Controlled source output circuit is connected and composed by connection terminal AC15 ~ AC18 common electrical; Outside connected switch power interface is made up of external three Switching Power Supplies; Mainboard digital power wave filter is connected and composed by wave filter U64, connection terminal DC15 common electrical; Mainboard analog power wave filter is connected and composed by wave filter U65 ~ U66, connection terminal DC16 common electrical; Conductance isolation digital power wave filter is connected and composed by wave filter U67 ~ U68, connection terminal DC17 common electrical; Power panel and motherboard interface are made up of connector P16; Volume pump controls solid-state relay and is connected and composed by solid-state relay U59 ~ U63 common electrical; Volume pump exports and drives interface to be made up of connector QXCTLM15.

Compared with prior art, tool has the following advantages and beneficial effect in the present invention:

1, antijamming capability is strong, disturb larger power supply and the independent making sheet of volume pump drive plate, and add shielding box, AC power is connected to twin-stage wave filter, direct-current switch power supply is connected to DC filter and uses solid capacitor in a large number, some places also adopt second level analog power to power, thus ensure the quality of direct current supply; System carries out ground connection by safety electric capacity, effectively can eliminate and disturbs and ensure safety.

2, measuring accuracy is high, and adopt precision optical machinery relay, its contact resistance is very little; Alternating constant exciting circuit can eliminate the impact of the additional resistance that electrode surface dirt produces effectively; Signal input adopts the instrument amplifier of high input impedance, can eliminate the impact of the additional resistance that dirt produces, can eliminate common mode interference widely again; Simulation part all have employed the resistance of high frequency low drifting precision amplifier and thousand-island forest park, thus ensure that input becomes the precision sent; Range 1/2 gear is provided with public resistance slope correction and resistance is revised zero point, and for ensureing precision, one/bis-road range 3 has done special processing respectively; Because electrode skin is signal ground, signal is from middle electrode emission and enter signal ground, so pumping signal can not be leaked, thus ensures not interference between local two-way conductivity signal.

3, compatibility is good, function is many, by using industrial standard liquid crystal touch screen to carry out connecting communication, thus makes data display, input, warning, curve record, inquiry etc. become easy; The use of fault-tolerant CAN communication isolation drive module, conveniently carries out communication with DCS or other system with CAN and corresponding agreement.

4, functional reliability is high, adopt comprehensive Anti-Jamming Technique, adopt fault-tolerant technique, fault only appears in this module, and other no failure part is work as usual, as communication isolation drive module break down time, overall measurement part is work as usual, and each road of potential electrode part is independent, and be added with protection circuit, the fault on a few road can not have influence on other road; Using the mean value of high alarm setting and low alarm limit as controlling definite value, carry out the control of ON/OFF amount and make it not transfinite, control effects is good.

5, easy to operate, internal control is completed by technician, and peripheral operation is regularly adjusted by workman, and operator, according to process conditions, alerting signal and recording curve, adjusts conductivity warning upper and lower limit in time and makes periodic cleaning to electrode.

6, intelligence degree is high, and inner parameter has default value, is adjusted in internal control by technician, has multinomial warning function, is convenient to help the reason of failure judgement and the position at place.

7, between circuit board of the present invention, available simple connector or stub cable connect, manufacture, easy to maintenance, cost is low, adopts aluminium cabinet, complete machine radiating condition is good, cabinet is hermetically sealed, can exempt dust, moisture invades, and adopts industrial standard liquid crystal touch screen, and utilize the configuration software that this liquid crystal touch screen is furnished with, powerful function can be realized, good looking appearance, easy to operate; Anti-deadlock function, the every place having circulation also may cause deadlock of native system program, inner counter, over range is jumped out automatically, and system design margin is comparatively large, normally can work in 220V ± 30% scope.

Accompanying drawing explanation

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

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

Fig. 3 is power supply and the volume pump drive plate electrical block diagram of aluminium section bar passivating process conductivity detection control apparatus of the present invention.

Fig. 4 is that first in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention is at sheet circuit system schematic diagram.

Fig. 5 be in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention at sheet system power supply and reset circuit schematic diagram.

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

Fig. 7 is the schematic diagram of mainboard digital power filtering circuit, safety electric capacity one circuit, mainboard analog power filtering circuit, power supply and volume pump drive plate interface in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention, conductance isolation simulation electric source filter circuit, safety electric capacity two circuit.

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

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

Figure 10 is the schematic diagram of the switch output control circuit in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention.

Figure 11 is the schematic diagram that temperature one detects interface, buffer circuit is sent in temperature one change in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention.

Figure 12 be conductance one in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention measure with exchange turn direct current and buffer circuit, schematic diagram that conductance one detects interface.

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

Figure 14 is the schematic diagram that temperature two detects interface, buffer circuit is sent in temperature two change in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention.

Figure 15 be conductance two in the motherboard circuits of aluminium section bar passivating process conductivity detection control apparatus of the present invention measure with exchange turn direct current and buffer circuit, schematic diagram that conductance two detects interface.

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

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

Figure 18 be AC220V general supply input circuit in the power supply of aluminium section bar passivating process conductivity detection control apparatus of the present invention and volume pump drive plate circuit, second at sheet system power supply circuit, second at sheet circuit system, to reset and on/off circuit, general supply control the schematic diagram of solid-state relay circuit, controlled source output circuit.

Figure 19 is outside connected switch power interface, mainboard digital power wave filter, mainboard analog power wave filter, conductance isolation digital power wave filter, power panel in the power supply of aluminium section bar passivating process conductivity detection control apparatus of the present invention and volume pump drive plate circuit and motherboard interface, volume pump control solid-state relay, volume pump exports the schematic diagram driving interface.

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

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

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

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

Figure 24 is the CAN receive interruption flow chart of aluminium section bar passivating process conductivity detection control apparatus of the present invention.

Embodiment

Below in conjunction with specific embodiment, the invention will be further described.

As shown in Figure 1, aluminium section bar passivating process conductivity detection control apparatus described in the present embodiment, adopt a casing being of a size of 290 × 250 × 450mm, in casing, panel is installed, liquid crystal touch screen (standard industrial control), motherboard, power supply and volume pump drive plate, four switch power modules, stube cable, alternating current supply filter, power supply input-output socket, two-way conductance electrode cable splice, two-way temperature cable splice, four road volume pump driver output sockets, ground terminal, CAN gang socket, wherein, described power supply and volume pump drive plate are provided with shielding box separately, described motherboard is provided with separately shielding galvanized iron plate, described liquid crystal touch screen is loaded on panel, by cable, the power supply of motherboard and volume pump drive plate interface 47 are connected with motherboard interface 75 with the power panel of power supply and volume pump drive plate, thus the interconnection of the power supply realized between two plates and switching signal, on panel, its power switch button meets the button S14 on power supply and volume pump drive plate, and its power light meets the light emitting diode L17 on power supply and volume pump drive plate, and its reset button meets the button S1 on motherboard, on power supply and volume pump drive plate, AC15 ~ AC18 connects four switch power modules and power supply exports, and it is that three CAN terminals are powered that this power supply exports.

Described panel is provided with power switch button 6, power light 7, reset button 16, described liquid crystal touch screen is configured with first via conductivity display window 1, second tunnel conductivity display window 2, 3rd tunnel conductivity display window 3, 4th tunnel conductivity display window 4, 5th tunnel conductivity display window 5, first electrode setting button 8, second electrode setting button 9, real-time curve button 10, current alerts button 11, history curve button 12, CAN address display window 13, history alarm button 14, CAN communication state display window to change 15, 5th road temperature display device 17, 4th road temperature display device 18, 3rd road temperature display device 19, second road temperature display device 20, first via temperature display device 21, 5th tunnel alarm indication window 22, 4th tunnel alarm indication window 23, 3rd tunnel alarm indication window 24, second tunnel alarm indication window 25, first via alarm indication window 26, the manual on/off switch button 27 of the first via, the second manual on/off switch button 28 in tunnel, first via automatic/hand switching push button 29, second road automatic/hand switching push button 30, first via switch pump instruction display window 31, second road switch pump instruction display window 32, 3rd road switch pump instruction display window 33, 4th road switch pump instruction display window 34, help button 35, described liquid crystal touch screen is powered by external DC24V, and interface is connected with the corresponding point on circuit board by stub cable.

As shown in Figure 2, the circuit of described motherboard by first at sheet circuit system 36, mainboard digital power filtering circuit 37, safety electric capacity one circuit 38, mainboard analog power filtering circuit 39, at sheet system power supply and reset circuit 40, signal shift switch and simulating signal limiter protection circuit 41, CAN isolated drive circuit 42, built-in function circuit 43, liquid crystal touch screen I/O communication interface circuit 44, display board communication interface circuit 45, switch output control circuit 46, power supply and volume pump drive plate interface 47, conductance isolation simulation electric source filter circuit 48, safety electric capacity two circuit 49, temperature one becomes send buffer circuit 50, temperature one detects interface 51, conductance one is measured and is turned direct current and buffer circuit 52 with exchanging, conductance one detects interface 53, constant current signal one drive circuit 54, conductance one trip stop transmission circuit 55, pumping signal one circuit for generating 56, precision voltage source circuit 57, pumping signal two circuit for generating 58, constant current signal two driving circuit 59, conductance two trip stop transmission circuit 60, conductance two detects interface 61, conductance two is measured and is turned direct current and buffer circuit 62 with exchanging, temperature two detects interface 63, temperature two becomes send buffer circuit 64 common electrical to connect to form, wherein, power supply and volume pump drive plate interface 47 are isolated with mainboard digital power filtering circuit 37, mainboard analog power filtering circuit 39, conductance respectively by power lead and are simulated corresponding point on electric source filter circuit 48 and be connected, thus introduce power supply, mainboard digital power filtering circuit 37 is connected with corresponding point on safety electric capacity one circuit 38, CAN isolated drive circuit 42, built-in function circuit 43, liquid crystal touch screen I/O communication interface circuit 44, display board communication interface circuit 45, switch output control circuit 46, conductance one trip stop transmission circuit 55, conductance two trip stop transmission circuit 60 respectively by power lead, sheet system power supply and reset circuit 40 by analog power line and digital power line and reset line respectively with first on sheet circuit system 36, mainboard digital power filtering circuit 37, mainboard analog power filtering circuit 39, signal shift switch and simulating signal limiter protection circuit 41 corresponding point be connected, for the system core provides analog power and the digital power of high-quality, first is connected with corresponding point on built-in function circuit 43, switch output control circuit 46, conductance one trip stop transmission circuit 55, conductance two trip stop transmission circuit 60 by switching line respectively at sheet circuit system 36, first is connected with corresponding point on CAN isolated drive circuit 42, liquid crystal touch screen I/O communication interface circuit 44, display board communication interface circuit 45 by connection respectively at sheet circuit system 36, the external CAN of joint CAN5 on CAN isolated drive circuit 42, the JP4 on liquid crystal touch screen I/O communication interface circuit 44 connects liquid crystal touch screen, and display board communication interface circuit 45 is temporarily without connecting, signal shift switch and simulating signal limiter protection circuit 41 become in sheet circuit system 36, temperature one with first respectively by analog signal line send buffer circuit 50, conductance one measure with exchange turn direct current and buffer circuit 52, conductance two measure with exchange turn direct current and buffer circuit 62, temperature two change send corresponding point on buffer circuit 64 to be connected, conductance isolation simulation electric source filter circuit 48 become with safety electric capacity two circuit 49, temperature one respectively by power lead send buffer circuit 50, temperature one detects interface 51, conductance one measure with exchange turn direct current and buffer circuit 52, constant current signal one drive circuit 54, precision voltage source circuit 57, constant current signal two driving circuit 59, conductance two measure with exchange turn direct current and buffer circuit 62, temperature two detects interface 63, temperature two change send corresponding point on buffer circuit 64 to be connected, temperature one detects interface 51 and send buffer circuit 50 to be connected by signal wire with temperature one change, and outside connects conductor temperature one sensor, conductance one detects interface 53 and measures respectively by signal wire and conductance one and turn corresponding point on direct current and buffer circuit 52, constant current signal one drive circuit 54 and be connected with exchanging, and outside connects conductance one sensor, constant current signal one drive circuit 54 is also connected with corresponding point on conductance one trip stop transmission circuit 55, pumping signal two circuit for generating 58 by signal wire, precision voltage source circuit 57 is connected with corresponding point on pumping signal one circuit for generating 56, pumping signal two circuit for generating 58 respectively by power lead, temperature two detects interface 63 and send buffer circuit 64 to be connected by signal wire with temperature two change, and outside connects conductor temperature two sensor, conductance two detects interface 61 and measures respectively by signal wire and conductance two and turn corresponding point on direct current and buffer circuit 62, constant current signal two driving circuit 59 and be connected with exchanging, and outside connects conductance two sensor, constant current signal two driving circuit 59 is also connected with corresponding point on pumping signal two circuit for generating 58, conductance two trip stop transmission circuit 60 by signal wire.

As shown in Figure 3, power supply and volume pump drive plate by AC220V general supply input circuit 65, second at sheet system power supply circuit 66, second at sheet circuit system 67, to reset and on/off circuit 68, general supply control solid-state relay circuit 69, controlled source output circuit 70, outside connected switch power interface 71, mainboard digital power wave filter 72, mainboard analog power wave filter 73, conductance isolates digital power wave filter 74, power panel and motherboard interface 75, volume pump controls solid-state relay 76, volume pump exports and drives interface 77 common electrical to connect to form; Wherein, AC220V general supply input circuit 65 is controlled corresponding point on solid-state relay circuit 69 and is connected in sheet system power supply circuit 66, general supply, external AC220V power supply with second by power lead respectively; Second sheet circuit system 67 by power lead, reset line, switching line respectively with second at sheet system power supply circuit 66, resetting controls corresponding point on solid-state relay circuit 69 with on/off circuit 68, general supply and is connected; Controlled source output circuit 70 controls corresponding point on solid-state relay circuit 69, outside connected switch power interface 71 respectively by power lead and is connected with general supply; Outside connected switch power interface 71 is isolated corresponding point on digital power wave filter 74 and is connected with mainboard digital power wave filter 72, mainboard analog power wave filter 73, conductance by power lead respectively, and outside connects three Switching Power Supplies; Power panel isolates digital power wave filter 74 with mainboard digital power wave filter 72, mainboard analog power wave filter 73, conductance with motherboard interface 75 respectively by power lead, volume pump controls solid-state relay 76 corresponding point and is connected, external motherboard; Volume pump output driving interface 77 controls corresponding point on solid-state relay 76 by power lead and volume pump and is connected, external four switch control rule volume pumps.

By computing machine self routing motherboard circuits, identical network tag computation chance is linked together automatically, as shown in Figure 4, in described motherboard circuits, first is connected and composed by integrated circuit U1, crystal oscillator U2, connector J1, resistance R1, electric capacity C1 ~ C22 common electrical at sheet circuit system 36; As shown in Figure 5, connected and composed by voltage stabilizer 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 at sheet system power supply and reset circuit 40; As shown in Figure 6, signal shift switch and simulating signal limiter protection circuit 41 are connected and composed by electronic switch UK2, amplifier U5 and U6, voltage stabilizing chip U7, limited amplitude protection chip U8, resistance RX2 ~ RX13 and R6, electric capacity C30 ~ C37 and CX2, light emitting diode L2 common electrical; As shown in Figure 7, mainboard digital power filtering circuit 37 is connected to form by magnetic bead RL3, electric capacity C38 common electrical; Safety electric capacity one circuit 38 is connected to form by magnetic bead RL4, resistance R7, safety electric capacity C39 common electrical; Mainboard analog power filtering circuit 39 is connected to form by magnetic bead RL5 ~ RL7, electric capacity C40 ~ C41 common electrical; Power supply and volume pump drive plate interface 47 are made up of connector P3; Conductance isolation simulation electric source filter circuit 48 is connected to form by magnetic bead RL8 ~ RL10, electric capacity C42 ~ C43 common electrical; Safety electric capacity two circuit 49 is connected to form by magnetic bead RL11, resistance R8, safety electric capacity C44 common electrical; As shown in Figure 8, built-in function circuit 43 is connected to form by toggle switch NBJ4, exclusion R15 common electrical; Liquid crystal touch screen I/O communication interface circuit 44 is connected to form by integrated circuit U9, magnetic bead RL12, connector P5 and JP4, resistance R9 ~ R10 and R13 ~ R14, electric capacity C46 common electrical; Display board communication interface circuit 45 is connected to form by connector P4, resistance R11 ~ R12, electric capacity C45 common electrical; As shown in Figure 9, CAN isolated drive circuit 42 is connected to form by integrated circuit U10, connector CAN5, resistance R16 ~ R17, electric capacity C47 common electrical; As shown in Figure 10, switch output control circuit 46 is connected to form by insulating power supply module U11, optocoupler U12, inductance L 6 ~ L8, resistance R18 ~ R19 and RX14, electric capacity C48 ~ C50 common electrical; As shown in figure 11, temperature one change send buffer circuit 50 to be connected and composed by amplifier U14, signal isolator U13, resistance R20 ~ R22, electric capacity C51 ~ C60 common electrical; Temperature one detects interface 51 and is made up of connector JT7; As shown in figure 12, conductance one is measured and is turned direct current and buffer circuit 52 is connected and composed by amplifier U16 and U18 ~ U19 and U22, AC/DC signal converter U17 and U20, signal isolator U15 and U21, resistance R23 ~ R27, electric capacity C61 ~ C84 common electrical with exchanging; Conductance one detects interface 53 and is made up of connector JD8; As shown in figure 13, constant current signal one drive circuit 54 is connected and composed 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; Pumping signal one circuit for generating 56 is connected and composed by integrated circuit U29, resistance RIN9 and R34, electric capacity C89 and C92 and C95 and CF9 common electrical; Conductance one trip stop transmission circuit 55 is connected and composed by relay U23 ~ U27, triode N9 ~ N13, diode D9 ~ D13, resistance R28 ~ R33 common electrical; As shown in figure 14, temperature two change send buffer circuit 64 to be connected and composed by amplifier U33, signal isolator U32, resistance R35 ~ R37, electric capacity C99 ~ C108 common electrical; Temperature two detects interface 63 and is made up of connector JT10; As shown in figure 15, conductance two is measured and is turned direct current and buffer circuit 62 is connected and composed by amplifier U34 and U37 ~ U38 and U41, AC/DC signal converter U36 and U39, signal isolator U35 and U40, resistance R38 ~ R42, electric capacity C109 ~ C134 common electrical with exchanging; Conductance two detects interface 61 and is made up of connector JD11; As shown in figure 16, constant current signal two driving circuit 59 is connected and composed 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 electrical; Pumping signal two circuit for generating 58 is connected and composed by integrated circuit U48, resistance RIN12 and R49, electric capacity C139 and C142 and C145 and CF12 common electrical; Conductance two trip stop transmission circuit 60 is connected and composed by relay U42 ~ U46, triode N14 ~ N18, diode D14 ~ D18, resistance R43 ~ R48 common electrical; As shown in figure 17, precision voltage source circuit 57 is connected and composed by voltage stabilizer U51 ~ U52, inductance L 13 ~ L16, electric capacity C149 ~ C154 common electrical.

By computing mechanism power supply and volume pump drive plate, identical network tag computation chance is linked together automatically, and as shown in figure 18, AC220V general supply input circuit 65 is connected and composed by connection terminal AC14, twin-stage wave filter U53 common electrical; Second is connected and composed by voltage stabilizing sheet U55, insulating power supply module U56, electric capacity CD14 ~ CD15 and C155 ~ C156 common electrical at sheet system power supply circuit 66; Second is connected and composed by integrated circuit U54, connector J14 and P14 ~ P15, exclusion R53 common electrical at sheet circuit system 67; Reset and on/off circuit 68 are connected and composed by button S14 ~ S15, resistance R54 ~ R57, electric capacity C157 ~ C158, light emitting diode L17 common electrical; General supply controls solid-state relay circuit 69 and is connected and composed by solid-state relay U57 ~ U58 common electrical; Controlled source output circuit 70 is connected and composed by connection terminal AC15 ~ AC18 common electrical; As shown in figure 19, outside connected switch power interface 71 is made up of external three Switching Power Supplies; Mainboard digital power wave filter 72 is connected and composed by wave filter U64, connection terminal DC15 common electrical; Mainboard analog power wave filter 73 is connected and composed by wave filter U65 ~ U66, connection terminal DC16 common electrical; Conductance isolation digital power wave filter 74 is connected and composed by wave filter U67 ~ U68, connection terminal DC17 common electrical; Power panel and motherboard interface 75 are made up of connector P16; Volume pump controls solid-state relay 76 and is connected and composed by solid-state relay U59 ~ U63 common electrical; Volume pump exports and drives interface 77 to be made up of connector QXCTLM15.

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

Principle of work of the present invention is as follows:

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

2) production process of conductance millivolt signal is as follows: the first sinusoidal signal of exiting signal generating circuit controlled generation certain frequency fixed amplitude, this signal connects constant current signal driving circuit, do after range switching control through conductance trip stop transmission circuit, produce certain driving constant current, this constant current through after straight process for driving conductance electrode, this constant current is flow through measuring resistance and detection cell simultaneously and is produced the AC signal of respective amplitude, the voltage of the larger generation of cell resistance is larger, this two-way AC signal enters ac/dc effective value converter respectively and produces corresponding DC voltage subsequently, main frame is sent into again after signal shift switch and the isolation of simulating signal limiter protection circuit,

3) temperature signal produced respectively by said process enters 12 A/D converters; Switched the A/D converter port four road conductance signals being sent into two-way 16 precision by electronic DC switch, the reference signal on same road and detection signal enter same passage, can eliminate channel error; Can be obtained the resistance at measuring cell two ends by the simple operation of single-chip microcomputer, after the linear correcting process of this resistance, obtain accurate resistance value, the inverse of resistance value is exactly hold electric conductivity value accurately, then obtains standard conductivity value after electrode conductance constant and temperature compensation;

4) each signal is after treatment sent in the mode of communicating interrupt the display that liquid crystal touch screen carries out corresponding data by first after the encoded packing of sheet system;

5) be also sent to first in sheet system in the mode of communicating interrupt after all button signal on liquid crystal touch screen are encoded, and perform corresponding operation;

6) CAN main frame sends timer synchronization signal in every 0.5 second, CAN terminal aborts receives this synchronizing signal, and the time period of data is sent with the size arrangement of address code, ensure the unblocked of data channel, the signal that CAN terminal is sent has conductivity, temperature, volume pump switching signal, alerting signal;

7) All hosts program and preset parameter are all kept at first in the sheet of sheet system in EEPROM, and computing variable is temporarily stored in first in the intrasystem RAM of sheet;

8) control of local two-way conductivity is, when conductivity exceedes upper and lower limit, produce and report to the police, first sheet system using the intermediate value between upper and lower limit as control definite value, and the switch output of pump is produced according to Positive-Negative Action, meanwhile, together with the switching signal sent here with terminal, alerting signal, produce the driver output of four road volume pumps and display alarm prompting;

9) when system needs adjustment internal control parameter, pressing electrode setting button, this picture is configured with multiple display window, is conductance millivolt indicating window respectively, with reference to millivolt indicating window, holds resistance value indicating window, standard conductivity indicating window, temperature value indicating window, conductance range indicating window, range automatic/hand indicating window, this touch-screen is furnished with input keyboard and makes amplitude limiting processing to data, data input realizes respectively by this keyboard of pressing, they are respectively, electrode constant button, temperature compensation coefficient button, temperature slope button, zero temperature point button, resistance slope 12 button, resistance 0. 12 button, one/bis-road range 3 calibrates frames button, conductivity zero-setting button, high alarm setting button, low alarm limit button, retardation time button, Positive-Negative Action button, range increases button, range subtracts, return key frame button, HMI data are sent to enter single-chip microcomputer button, one/bis-path electrode setting interface phase is same, the data of all inputs all have power down protection process, note only having pressing force feed HMI data and entering single-chip microcomputer button and data could be sent into single-chip microcomputer, in order to ensure the precision measured, range 1/2 gear is provided with public resistance slope correction and resistance is revised zero point, done special processing to range 3, wherein, range 3 power taking resistance 500,600,700,800,900,1000,2000,3000,4000,5000 ohm of magnitudes of voltage located are as the foundation of interpolation of linearly tabling look-up.

Technical indicator and the parameter of embodiments of the invention are as follows: (1) input voltage: AC220V ± 30%, 50Hz; (2) average power: 70W; (3) conductivity one/bis-tunnel sensing range: 200 μ S ~ 200mS; (4) fluid temperature one/bis-tunnel: 0 ~ 99.9 DEG C; (5) one/two-way switch control modes: automatic or manual; (6) conductivity one/bis-on-line checkingi point precision :≤1% (on a large scale); (7) trip stop maximum detection retardation time :≤2 seconds; (8) three road CAN terminals are mounted in addition; (9) realize five tunnel display alarms, four-way switch controls.

The present invention in use, first connect alternating current 220V voltage, outside connecting valve power supply, conductance one/bis-electrode (respectively with semiconductor temperature sensor), dosing pump one/bis-/tri-/tetra-, three road CAN terminal and power supply thereof, specific works step during detection is: (1) power-on; (2) memory internal parameter is adjusted; Operator can according to process conditions, alerting signal and recording curve afterwards, and on liquid crystal touch screen, adjustment conductivity up/down limits alarming value in time, and calibration of regularly conductance electrode being cleaned and returned to zero.

Master routine of the present invention is shown in Figure 20, measures monitoring process subroutine and sees Figure 21, when using for the first time: arrange toggle switch NBJ4 to implicit parameter, start, delivers to original canonical parameter in RAM in sheet system to allow first; Then reverse code to memory parameter bit, complete normal boot-strap; Afterwards, electrode 1 on pressing liquid crystal touch screen sets button, and by built-in keybad input parameter, they are: electrode constant button, temperature compensation coefficient button, temperature slope button, zero temperature point button, resistance slope 12 button, resistance 0. 12 button, one/bis-road range 3 calibrate picture, conductivity zero-setting button, high alarm setting button, low alarm limit button, retardation time button, Positive-Negative Action button, return key frame button, send HMI data to enter single-chip microcomputer button; The operation that electrode 2 sets button is the same; After setting parameter completes, attention must be pressed force feed HMI data and be entered single-chip microcomputer button, and like this, single-chip microcomputer could receive corresponding data, and these data are saved in inner EEPROM, during in order to start next time, automatically calls in this memory parameter.Simultaneously, LCDs also regularly refreshes the data that single-chip microcomputer is sent here, they are: conductance millivolt indicating window, reference millivolt indicating window, end resistance value indicating window, standard conductivity indicating window, Temperature indication windows, conductance range indicating window, range auto-manual indicating window, and one/bis-dataway operation interface phase is same; The function utilizing liquid crystal touch screen built-in draws real-time curve, history curve, and can show Realtime Alerts and history is reported to the police.Temperature channel makes linear revise by slope and zero point; Conductance range 1/2 need are made resistance slope 12 and are made linear revise with resistance 0. 12, and conductance range 3 will enter another picture, and records the magnitude of voltage under each measuring resistance, and this makeover process needs to use a. c. resistance box; Internal system uses 25 milliseconds of Abort Timers, sees Figure 22, and the program for managing internal is run and within every 0.5 second, sends CAN synchronization timing data; The serial data exchange of main frame and liquid crystal touch screen etc., all adopts interruption to perform, sees Figure 23, send and be introduced into buffer circle with the data received, then, process this buffer zone by program; The data sent here by three CAN terminals, are also processed immediately by main frame in the mode of interrupting, see Figure 24; The adjustment of electrode constant needs standard K CL damping fluid, and temperature value adjustment needs thermometer; Arrive this, complete machine adjustment is complete; Peripheral operation does regular, suitable adjustment by workman.

In sum, this device is together with seven electrodes or four electrode sensors, directly can realize the Detection & Controling of two-way conductivity, outside connects three single channel seven-electrode conductivity test and monitoring instrument by CAN, realize detecting the pre-degreasing conductivity of aluminium section bar passivating process and Adding medicine control, degreasing conductivity detects and Adding medicine control, once clean conductivity detects and change water management, passivating process conductivity detects and Adding medicine control, secondary wash conductivity testing and alarm, namely five tunnel conductivity detections add four tunnels controls; The two-way conductivity that this device is provided for oneself detects and has 3 gear ranges respectively, and measurement range is 200uS/cm ~ 200mS/cm, the conductance electrode of supporting Different electrodes constant, and measuring range can widen further.This device one/bis-tunnel independently adopts a point gear accurate interchange constant current drive, independently measures, and control effects is good; Owing to adopting industrial standard liquid crystal touch screen, the configuration software be furnished with of this screen and scm software coordinate and carry out data communication and exchange, easily realize the input of data, output, system is furnished with the first electrode setting picture, the second electrode setting picture, real-time curve record, history curve inquiry, current alerts display, history alarm indication, in addition, also respectively there are manual/auto control switching, the switching of manual ON/OFF pump in one/bis-tunnel; CAN communication is indicated, system alarm display is carried out to five road conductivity signals, enter document display page by help button, can help document be watched.System is furnished with CAN module and is convenient to other system group network; Owing to adopting many new technologies, the present invention has many advantages, low cost of manufacture, technique are simple, measuring accuracy is high, antijamming capability is strong, function is many, maintenance maintenance facilitates etc., can be widely used in the Detection & Controling process of the online conductivity of industry spot, are worthy to be popularized.

The examples of implementation of the above are only the preferred embodiment of the present invention, not limit practical range of the present invention with this, therefore the change that all shapes according to the present invention, principle are done, all should be encompassed in protection scope of the present invention.

Claims (6)

1. an aluminium section bar passivating process conductivity detection control apparatus, it is characterized in that: the panel including casing and be loaded on respectively in this casing, liquid crystal touch screen, motherboard, power supply and volume pump drive plate, four switch power modules, cable, alternating current supply filter, power supply input-output socket, two-way conductance electrode cable splice, two-way temperature cable splice, four road volume pump driver output sockets, ground terminal, CAN gang socket, wherein, described power supply and volume pump drive plate are provided with shielding box separately, described motherboard is provided with separately shielding galvanized iron plate, described liquid crystal touch screen is loaded on panel, by cable, the power supply of motherboard and volume pump drive plate interface are connected with motherboard interface with the power panel of power supply and volume pump drive plate, thus the interconnection of the power supply realized between two plates and switching signal, on panel, its power switch button meets the button S14 on power supply and volume pump drive plate, and its power light meets the light emitting diode L17 on power supply and volume pump drive plate, and its reset button meets the button S1 on motherboard, on power supply and volume pump drive plate, AC15 ~ AC18 connects four switch power modules and power supply exports, and it is that three CAN terminals are powered that this power supply exports.

2. a kind of aluminium section bar passivating process conductivity detection control apparatus according to claim 1, is characterized in that: described panel is provided with power switch button, power light, reset button, described liquid crystal touch screen is configured with first via conductivity display window, second tunnel conductivity display window, 3rd tunnel conductivity display window, 4th tunnel conductivity display window, 5th tunnel conductivity display window, first electrode setting button, second electrode setting button, real-time curve button, current alerts button, history curve button, CAN address display window, history alarm button, CAN communication state display window to change, 5th road temperature display device, 4th road temperature display device, 3rd road temperature display device, second road temperature display device, first via temperature display device, 5th tunnel alarm indication window, 4th tunnel alarm indication window, 3rd tunnel alarm indication window, second tunnel alarm indication window, first via alarm indication window, the manual on/off switch button of the first via, the second manual on/off switch button in tunnel, first via automatic/hand switching push button, second road automatic/hand switching push button, first via switch pump instruction display window, second road switch pump instruction display window, 3rd road switch pump instruction display window, 4th road switch pump instruction display window, help button, described liquid crystal touch screen is powered by external DC24V, and interface is connected with the corresponding point on circuit board by stub cable.

3. a kind of aluminium section bar passivating process conductivity detection control apparatus according to claim 1, is characterized in that: the circuit of described motherboard by first at sheet circuit system, mainboard digital power filtering circuit, safety electric capacity one circuit, mainboard analog power filtering circuit, at sheet system power supply and reset circuit, signal shift switch and simulating signal limiter protection circuit, CAN isolated drive circuit, built-in function circuit, liquid crystal touch screen I/O communication interface circuit, display board communication interface circuit, switch output control circuit, power supply and volume pump drive plate interface, conductance isolation simulation electric source filter circuit, safety electric capacity two circuit, temperature one becomes send buffer circuit, temperature one detects interface, conductance one is measured and is turned direct current and buffer circuit with exchanging, conductance one detects interface, constant current signal one drive circuit, conductance one trip stop transmission circuit, pumping signal one circuit for generating, precision voltage source circuit, pumping signal two circuit for generating, constant current signal two driving circuit, conductance two trip stop transmission circuit, conductance two detects interface, conductance two is measured and is turned direct current and buffer circuit with exchanging, temperature two detects interface, temperature two becomes send buffer circuit common electrical to connect to form, wherein, power supply and volume pump drive plate interface are isolated with mainboard digital power filtering circuit, mainboard analog power filtering circuit, conductance respectively by power lead and are simulated corresponding point on electric source filter circuit and be connected, thus introduce power supply, mainboard digital power filtering circuit is connected with corresponding point on safety electric capacity one circuit, CAN isolated drive circuit, built-in function circuit, liquid crystal touch screen I/O communication interface circuit, display board communication interface circuit, switch output control circuit, conductance one trip stop transmission circuit, conductance two trip stop transmission circuit respectively by power lead, sheet system power supply and reset circuit by analog power line and digital power line and reset line respectively with first on sheet circuit system, mainboard digital power filtering circuit, mainboard analog power filtering circuit, signal shift switch and simulating signal limiter protection circuit corresponding point be connected, for the system core provides analog power and the digital power of high-quality, first is connected with corresponding point on built-in function circuit, switch output control circuit, conductance one trip stop transmission circuit, conductance two trip stop transmission circuit by switching line respectively at sheet circuit system, first is connected with corresponding point on CAN isolated drive circuit, liquid crystal touch screen I/O communication interface circuit, display board communication interface circuit by connection respectively at sheet circuit system, the external CAN of joint CAN5 on CAN isolated drive circuit, the JP4 on liquid crystal touch screen I/O communication interface circuit connects liquid crystal touch screen, and display board communication interface circuit is temporarily without connecting, signal shift switch and simulating signal limiter protection circuit become in sheet circuit system, temperature one with first respectively by analog signal line send buffer circuit, conductance one measure with exchange turn direct current and buffer circuit, conductance two measure with exchange turn direct current and buffer circuit, temperature two change send corresponding point on buffer circuit to be connected, conductance isolation simulation electric source filter circuit become with safety electric capacity two circuit, temperature one respectively by power lead send buffer circuit, temperature one detects interface, conductance one measure with exchange turn direct current and buffer circuit, constant current signal one drive circuit, precision voltage source circuit, constant current signal two driving circuit, conductance two measure with exchange turn direct current and buffer circuit, temperature two detects interface, temperature two change send corresponding point on buffer circuit to be connected, temperature one detects interface and send buffer circuit to be connected by signal wire with temperature one change, and outside connects conductor temperature one sensor, conductance one detects interface and measures respectively by signal wire and conductance one and turn corresponding point on direct current and buffer circuit, constant current signal one drive circuit and be connected with exchanging, and outside connects conductance one sensor, constant current signal one drive circuit is also connected with corresponding point on conductance one trip stop transmission circuit, pumping signal two circuit for generating by signal wire, precision voltage source circuit is connected with corresponding point on pumping signal one circuit for generating, pumping signal two circuit for generating respectively by power lead, temperature two detects interface and send buffer circuit to be connected by signal wire with temperature two change, and outside connects conductor temperature two sensor, conductance two detects interface and measures respectively by signal wire and conductance two and turn corresponding point on direct current and buffer circuit, constant current signal two driving circuit and be connected with exchanging, and outside connects conductance two sensor, constant current signal two driving circuit is also connected with corresponding point on pumping signal two circuit for generating, conductance two trip stop transmission circuit by signal wire.

4. a kind of aluminium section bar passivating process conductivity detection control apparatus according to claim 1, it is characterized in that: described power supply and volume pump drive plate are by AC220V general supply input circuit, second at sheet system power supply circuit, second at sheet circuit system, reset and on/off circuit, general supply controls solid-state relay circuit, controlled source output circuit, outside connected switch power interface, mainboard digital power wave filter, mainboard analog power wave filter, conductance isolation digital power wave filter, power panel and motherboard interface, volume pump controls solid-state relay, volume pump exports and drives interface common electrical to connect to form, wherein, AC220V general supply input circuit is controlled corresponding point on solid-state relay circuit and is connected in sheet system power supply circuit, general supply, external AC220V power supply with second by power lead respectively, second sheet circuit system by power lead, reset line, switching line respectively with second at sheet system power supply circuit, resetting controls corresponding point on solid-state relay circuit with on/off circuit, general supply and is connected, controlled source output circuit controls corresponding point on solid-state relay circuit, outside connected switch power interface respectively by power lead and is connected with general supply, outside connected switch power interface is isolated corresponding point on digital power wave filter and is connected with mainboard digital power wave filter, mainboard analog power wave filter, conductance by power lead respectively, and outside connects three Switching Power Supplies, power panel isolates digital power wave filter with mainboard digital power wave filter, mainboard analog power wave filter, conductance with motherboard interface respectively by power lead, volume pump controls solid-state relay corresponding point and is connected, and external motherboard, volume pump output driving interface controls corresponding point on solid-state relay by power lead and volume pump and is connected, external four switch control rule volume pumps.

5. a kind of aluminium section bar passivating process conductivity detection control apparatus according to claim 3, is characterized in that: described first is connected and composed by integrated circuit U1, crystal oscillator U2, connector J1, resistance R1, electric capacity C1 ~ C22 common electrical at sheet circuit system; Connected and composed by voltage stabilizer 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 at sheet system power supply and reset circuit; Signal shift switch and simulating signal limiter protection circuit are connected and composed by electronic switch UK2, amplifier U5 and U6, voltage stabilizing chip U7, limited amplitude protection chip U8, resistance RX2 ~ RX13 and R6, electric capacity C30 ~ C37 and CX2, light emitting diode L2 common electrical; Mainboard digital power filtering circuit is connected to form by magnetic bead RL3, electric capacity C38 common electrical; Safety electric capacity one circuit is connected to form by magnetic bead RL4, resistance R7, safety electric capacity C39 common electrical; Mainboard analog power filtering circuit is connected to form by magnetic bead RL5 ~ RL7, electric capacity C40 ~ C41 common electrical; Power supply and volume pump drive plate interface are made up of connector P3; Conductance isolation simulation electric source filter circuit is connected to form by magnetic bead RL8 ~ RL10, electric capacity C42 ~ C43 common electrical; Safety electric capacity two circuit is connected to form by magnetic bead RL11, resistance R8, safety electric capacity C44 common electrical; Built-in function circuit is connected to form by toggle switch NBJ4, exclusion R15 common electrical; Liquid crystal touch screen I/O communication interface circuit is connected to form by integrated circuit U9, magnetic bead RL12, connector P5 and JP4, resistance R9 ~ R10 and R13 ~ R14, electric capacity C46 common electrical; Display board communication interface circuit is connected to form by connector P4, resistance R11 ~ R12, electric capacity C45 common electrical; CAN isolated drive circuit is connected to form by integrated circuit U10, connector CAN5, resistance R16 ~ R17, electric capacity C47 common electrical; Switch output control circuit is connected to form by insulating power supply module U11, optocoupler U12, inductance L 6 ~ L8, resistance R18 ~ R19 and RX14, electric capacity C48 ~ C50 common electrical; Temperature one becomes send buffer circuit to be connected and composed by amplifier U14, signal isolator U13, resistance R20 ~ R22, electric capacity C51 ~ C60 common electrical; Temperature one detects interface and is made up of connector JT7; Conductance one is measured and is turned direct current and buffer circuit is connected and composed by amplifier U16 and U18 ~ U19 and U22, AC/DC signal converter U17 and U20, signal isolator U15 and U21, resistance R23 ~ R27, electric capacity C61 ~ C84 common electrical with exchanging; Conductance one detects interface and is made up of connector JD8; Constant current signal one drive circuit is connected and composed 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; Pumping signal one circuit for generating is connected and composed by integrated circuit U29, resistance RIN9 and R34, electric capacity C89 and C92 and C95 and CF9 common electrical; Conductance one trip stop transmission circuit is connected and composed by relay U23 ~ U27, triode N9 ~ N13, diode D9 ~ D13, resistance R28 ~ R33 common electrical; Temperature two becomes send buffer circuit to be connected and composed by amplifier U33, signal isolator U32, resistance R35 ~ R37, electric capacity C99 ~ C108 common electrical; Temperature two detects interface and is made up of connector JT10; Conductance two is measured and is turned direct current and buffer circuit is connected and composed by amplifier U34 and U37 ~ U38 and U41, AC/DC signal converter U36 and U39, signal isolator U35 and U40, resistance R38 ~ R42, electric capacity C109 ~ C134 common electrical with exchanging; Conductance two detects interface and is made up of connector JD11; Constant current signal two driving circuit is connected and composed 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 electrical; Pumping signal two circuit for generating is connected and composed by integrated circuit U48, resistance RIN12 and R49, electric capacity C139 and C142 and C145 and CF12 common electrical; Conductance two trip stop transmission circuit is connected and composed by relay U42 ~ U46, triode N14 ~ N18, diode D14 ~ D18, resistance R43 ~ R48 common electrical; Precision voltage source circuit is connected and composed by voltage stabilizer U51 ~ U52, inductance L 13 ~ L16, electric capacity C149 ~ C154 common electrical.

6. a kind of aluminium section bar passivating process conductivity detection control apparatus according to claim 4, is characterized in that: described AC220V general supply input circuit is connected and composed by connection terminal AC14, twin-stage wave filter U53 common electrical; Second is connected and composed by voltage stabilizing sheet U55, insulating power supply module U56, electric capacity CD14 ~ CD15 and C155 ~ C156 common electrical at sheet system power supply circuit; Second is connected and composed by integrated circuit U54, connector J14 and P14 ~ P15, exclusion R53 common electrical at sheet circuit system; Reset and on/off circuit are connected and composed by button S14 ~ S15, resistance R54 ~ R57, electric capacity C157 ~ C158, light emitting diode L17 common electrical; General supply controls solid-state relay circuit and is connected and composed by solid-state relay U57 ~ U58 common electrical; Controlled source output circuit is connected and composed by connection terminal AC15 ~ AC18 common electrical; Outside connected switch power interface is made up of external three Switching Power Supplies; Mainboard digital power wave filter is connected and composed by wave filter U64, connection terminal DC15 common electrical; Mainboard analog power wave filter is connected and composed by wave filter U65 ~ U66, connection terminal DC16 common electrical; Conductance isolation digital power wave filter is connected and composed by wave filter U67 ~ U68, connection terminal DC17 common electrical; Power panel and motherboard interface are made up of connector P16; Volume pump controls solid-state relay and is connected and composed by solid-state relay U59 ~ U63 common electrical; Volume pump exports and drives interface to be made up of connector QXCTLM15.