CN103482727A - Air plasma jet water treatment experiment research device - Google Patents

Abstract

The invention discloses an air plasma jet water treatment experiment research device. The air plasma jet water treatment experiment research device is characterized by comprising a reactor, a plasma jet generation device and a stirring device, wherein the reactor is used for containing waste water; the plasma jet generation device is used for generating air plasma jet and discharging the air plasma jet in the waste water in the reactor; the stirring device is used for stirring the waste water in the reactor. According to the air plasma jet water treatment experiment research device with a stirring function, stable and high-concentration plasma active particles can be generated, and the efficient plasma utilization and the full chemical action during water treatment are realized. The air plasma jet water treatment experiment research device is high in controllability and good in treatment effect.

Description

The air plasma water jets is processed test research device

Technical field

The present invention relates to a kind of water treatment device, be specifically related to a kind of water jets of the air plasma with agitating function and process test research device.

Background technology

Plasma body is by a large amount of interactions but still the meta system that the charged particle under non-bound state forms is the 4th state with solid, liquid, the material of gas in same level.Air plasma jet source (APJ) can obtain low-temperature plasma at discharge in water, and in low-temperature plasma, the temperature of electronics is 10 ⁴more than K, the temperature of ion and neutral particle is slightly higher than normal temperature, and discharge process is accompanied by high-energy electron, ultraviolet ray, shockwave, active particle (as OH, O, H, O ₃, H ₂o ₂deng), this characteristic can be with toxic species such as the organism that removes difficult degradation in water, bacterium, heavy metals.Utilize low-temperature plasma jet that air plasma jet source produces, electricity, chemical oxidation and light have been gathered in one, be a kind of high-level oxidation technology of water treatment, this technology possesses the combined effect of the multinomial water treatment method such as living radical oxidation, photochemical oxidation, supercritical water oxidation, electrohydraulic cavitation degradation simultaneously.

At present, Non-thermal Plasma Technology in Water Treatment is considered to one of best approach of processing hardly degraded organic substance, but there is shortcomings in existing plasma body water treatment device, during as low as the plasma body utilization ratio, water treatment, chemical reaction carries out not fully, reaction unit can not be controlled automatically and only can under the ideal conditions of laboratory, be tested etc.

Summary of the invention

For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of water jets of the air plasma with agitating function place experimental study reason device.

In order to realize above-mentioned target, the present invention adopts following technical scheme:

The air plasma water jets is processed test research device, it is characterized in that, comprising:

Reaction vessel, for holding waste water;

The plasma jet generating unit, for generation of the air plasma jet and make to discharge in the waste water of air plasma jet in reaction vessel;

Whipping appts, stirred for the waste water to reaction vessel.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, described plasma jet generating unit comprises compressed gas source, high-voltage power supply, fluid jet nozzle, described compressed gas source connects high-voltage power supply, high-voltage power supply connects fluid jet nozzle, and fluid jet nozzle stretches in the waste water in reaction vessel; Described whipping appts comprises agitator motor and synchronous device, stirring rod, and described agitator motor and synchronous device connect stirring rod, and described stirring rod stretches in the waste water in reaction vessel.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, also comprise data gathering and control unit, gas meter, for detection of electric machine rotation photodetector unit, motor driving and control unit, the first steam line, the second steam line, high-tension cable, high-voltage probe, current probe, the oscilloscope of the rotation situation of whipping appts; Between described compressed gas source and high-voltage power supply, by the first steam line, connect; Between described high-voltage power supply and fluid jet nozzle, by the second steam line, with high-tension cable, be connected respectively; Gas meter is arranged on the second steam line; One end of high-voltage probe connects high-voltage power supply by high-tension cable, and the other end of high-voltage probe connects oscilloscope by high-tension cable, and oscilloscope connects current probe by high-tension cable, and current probe connects fluid jet nozzle by high-tension cable; Motor drives and is connected agitator motor and synchronous device with control unit; Data gathering and control unit are connected motor driving and control unit, compressed gas source, high-voltage power supply, gas meter, electric machine rotation photodetector unit, condensation reflux unit by cable respectively.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, also comprises condensation reflux unit; Described reaction vessel comprises container chamber and is separately positioned on first on container chamber, second mouthful and the 3rd mouthful; Described fluid jet nozzle stretches into first, and described stirring rod stretches into second mouthful, and described condensation reflux unit is arranged on the 3rd mouthful.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, also comprises the spectrum detection device for detection of the air plasma jet.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, described agitator motor and synchronous device comprise stepper-motor, stepping motor synchronous device, described motor drives and is connected stepper-motor with control unit, stepper-motor connects the stepping motor synchronous device, and the stepping motor synchronous device connects stirring rod.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, described data gathering and control unit comprise microcontroller, indicating meter, keyboard input block and device control end, and microcontroller connects respectively indicating meter, keyboard input block, device control end, motor driving and control unit, compressed gas source, high-voltage power supply, gas meter, electric machine rotation photodetector unit, condensation reflux unit.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, described motor drives with control unit and comprises driver control unit, two-phase stepping motor driver element, microcontroller connects the driver control unit, the driver control unit connects the two-phase stepping motor driver element, and the two-phase stepping motor driver element connects agitator motor and synchronous device.

Aforesaid air plasma water jets is processed test research device, it is characterized in that, described reaction vessel is three mouthfuls of quartz reactors, and described reaction vessel is arranged on the reactor base station; Described the first steam line and the second steam line are polyfluortetraethylene pipe; Described agitator motor and synchronous device also comprise reactor fixed link, mechanism's mount pad, agitator positioning seat, ball jacket, ball jacket stationary installation, and described ball jacket is arranged on the reactor fixed link by the ball jacket stationary installation; Ball jacket is fixedly connected with mechanism's mount pad, and mechanism's mount pad is fixedly connected with the agitator positioning seat; Described stepper-motor and stepping motor synchronous device are mounted on mechanism's mount pad; Stirring rod is arranged on the agitator positioning seat; Be provided with agitating vane on described stirring rod, between described stirring rod and second mouthful, be provided with packed-piston; Described condensation reflux unit is spherical condensation tube; Described gas meter is by RS-485 interface connection data data acquisition and controlling unit; Described microcontroller is the STC12 series monolithic, the driver control unit comprises the L297 chip, the STC12 series monolithic connects the L297 chip, the two-phase stepping motor driver element comprises two L6203 chips, the L297 chip is connected with two L6203 chips respectively, and the L6203 chip connects agitator motor and synchronous device; Described spectrum detection device comprises spectrograph, fibre-optical fixator, optical fiber, PC, and fibre-optical fixator is fixed on optical fiber one end on the reactor base station, and the optical fiber the other end connects spectrograph, and spectrograph connects PC.

Usefulness of the present invention is: air plasma water jets of the present invention is processed test research device can produce stable plasma body active particle, can adjust the stirring velocity of reactor, binding plasma spectral detection and discharge parameter detection system, abundant chemical reaction while realizing the efficient utilization of plasma body and water treatment, the research plasma jet is processed the chemical kinetics pattern of waste water, reaction unit controllability of the present invention is strong, and treatment effect is good.

The accompanying drawing explanation

Fig. 1 is a structural representation of preferably implementing of the present invention;

Fig. 2 is the preferred structure schematic diagram of agitator motor and synchronous device in the present invention;

Fig. 3 is the vertical view of agitator motor and synchronous device in the present invention;

Fig. 4 is the preferred structure schematic diagram of data gathering and control unit in the present invention;

Fig. 5 is that in the present invention, motor drives the preferred structure schematic diagram with control unit;

Fig. 6 is that in the present invention, the motor driving promotes schematic diagram with the two-phase stepping motor single-phase current of control unit;

Fig. 7 is that in the present invention, the motor driving promotes and half flow control circuit figure with the single-phase current of control unit;

Fig. 8 is the preferred structure schematic diagram of reaction vessel in the present invention;

Fig. 9 is the principle of work schematic diagram of fluid jet nozzle in the present invention;

When Figure 10 is Air plasma jet degradation of organic substances of the present invention, solution is through the flow velocity schematic diagram in plasma body zone;

Figure 11 is water treatment main program flow chart in the present invention;

Figure 12 is the flow for displaying figure in when operation in the present invention;

Figure 13 is the water treatment process figure in when operation in the present invention.

The implication of Reference numeral in figure:

1, condensation reflux unit, 2, water outlet, 3, water-in, 4, packed-piston, 5, agitator motor and synchronous device, 6, reaction vessel, 7, stirring rod, 8, agitating vane, 9, the reactor base station, 10, fibre-optical fixator, 11, jet, 12, fluid jet nozzle, 13, motor drives and control unit, and 14, data gathering and control unit, 15, high-voltage power supply, 16, compressed gas source, 17, spectrograph, 18, PC, 19, optical fiber, 20, oscilloscope, 21, current probe, 22, high-tension cable, 23, the second steam line, 24, the electric machine rotation photodetector unit, 25, high-voltage probe, 26, gas meter, 27, synchronizing wheel, 28, with reference to scale, 29, mechanism's mount pad, 30, Timing Belt, 31, stepper-motor, 32, the reactor fixed link, 33, ball jacket, 34, hook knob, 35, bearing, 36, the agitator positioning seat, 37, the first steam line, 38, first, 39, second mouthful, 40, the 3rd mouthful, 41, indicating meter, 42, microcontroller, 43, the device control end, 44, the keyboard input block, 45, retaining clip, 46, graduated scale, 47, spherical condensation tube, 48, reactor frame, 49, the operator's console base, 50, the fluid jet nozzle fixed link, 51, plasma torch, 52, inlet mouth, 53, tetrafluoroethylene, 54, air-flow, 55, aluminum, 56, electrode in copper, 57, the copper outer electrode, 58, plasma body.

Embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is done to concrete introduction.

Purpose of the present invention, be to provide a kind of water jets of the air plasma with agitating function and process test research device.Wastewater treatment reaction kinetics process is: the rapid stirring by pending water through agitator, cause waste water solution and the contact area exponentially level from the air in plasma body zone to increase, the collision frequency of toxic species (organic contamination, heavy metal ion, germ etc.) in the active particle (high-energy electron, living radical, ultraviolet ray and ozone) that effectively improves discharge generation in the exoelectrical reaction treating processes and water.Thereby, effectively improve chemical reaction rate.Agitator speed of the present invention is adjustable, can be for the water of different pollution parameters, adjust the mutual movement velocity of its solution flow rate and plasma jet 11, make the chemical kinetics produced in reactor in " diffusing step control " or " activation step control " zone.And the parameter point that " diffusing step " is close with " speed of reaction " is adjusted in reaction the most at last, thus the power save mode of realizing that water treatment system moves.

Shown in Fig. 1, the air plasma water jets provided in the present embodiment is processed test research device, comprising: reaction vessel 6, for holding waste water; The plasma jet generating unit, for generation of air plasma jet 11 and make to discharge in the waste water of air plasma jet 11 in reaction vessel 6; Whipping appts, stirred for the waste water to reaction vessel 6.During actual motion, the waste water solution in reaction vessel 6 contacts with the air plasma produced from the plasma jet generating unit, and whipping appts is stirred the waste water in reaction vessel 6, thereby effectively improves the chemical reaction rate of wastewater treatment.

Further, in the present embodiment, the plasma jet generating unit comprises compressed gas source 16, high-voltage power supply 15, fluid jet nozzle 12, and compressed gas source 16 connects high-voltage power supply 15, high-voltage power supply 15 connects fluid jet nozzle 12, and fluid jet nozzle 12 stretches in the waste water in reaction vessel 6; Whipping appts comprises agitator motor and synchronous device 5, stirring rod 7, and agitator motor and synchronous device 5 connect stirring rod 7, and stirring rod 7 stretches in the waste water in reaction vessel 6.As shown in Figures 2 and 3, between compressed gas source 16 and high-voltage power supply 15, with steam line, be connected, steam line is tetrafluoroethylene 53 (PTFE) pipe; Between high-voltage power supply 15 and fluid jet nozzle 12, with air-supply duct, with high-tension cable 22, be connected respectively; Gas meter 26 is arranged on the steam line that connects high-voltage power supply 15 and fluid jet nozzle 12, and high-voltage probe 25, oscilloscope 20 and current probe 21 are arranged on the high-tension cable 22 between high-voltage power supply 15 and fluid jet nozzle 12 successively; Fluid jet nozzle 12 extend into three mouthfuls of quartz reactor firsts 38; Motor drive with control unit 13 and whipping appts between with cable, be connected; Data gathering drives and is connected with cable with control unit 13, high-voltage power supply 15, compressed gas source 16, gas meter 26, electric machine rotation photodetector unit 24, prolong with motor respectively with control unit 14.As preferably, the first steam line 37 and the second steam line 23 are tetrafluoroethylene 53 pipes.

In order to improve the automatic controllability of the present embodiment, as shown in Figure 2 and Figure 4.The present invention also comprises data gathering and control unit 14, gas meter 26, drives and control unit 13, the first steam line 37, the second steam line 23, high-tension cable 22, high-voltage probe 25, current probe 21, oscilloscope 20 for detection of electric machine rotation photodetector unit 24, the motor of the rotation situation of whipping appts; Between compressed gas source 16 and high-voltage power supply 15, by the first steam line 37, connect; Between high-voltage power supply 15 and fluid jet nozzle 12, by the second steam line 23, with high-tension cable 22, be connected respectively; Gas meter 26 is arranged on the second steam line 23; One end of high-voltage probe 25 connects high-voltage power supply 15 by high-tension cable 22, the other end of high-voltage probe 25 connects oscilloscope 20 by high-tension cable 22, oscilloscope 20 connects current probe 21 by high-tension cable 22, and current probe 21 connects fluid jet nozzle 12 by high-tension cable 22; Motor drives and is connected agitator motor and synchronous device 5 with control unit 13; Data gathering is connected motor by cable respectively with control unit 14 and drives and control unit 13, compressed gas source 16, high-voltage power supply 15, gas meter 26, electric machine rotation photodetector unit 24, condensation reflux unit 1.

As shown in Figure 2 and Figure 8, the present invention also comprises condensation reflux unit 1, and reaction vessel 6 of the present invention comprises container chamber and is separately positioned on first 38 on container chamber, second mouthful 39 and the 3rd mouthful 40; Fluid jet nozzle 12 stretches into first 38, and stirring rod 7 stretches into second mouthful 39, and condensation reflux unit 1 is arranged on the 3rd mouthful 40.As preferably, reaction vessel 6 is three mouthfuls of quartz reactors.As preferably, reaction vessel 6 of the present invention is three mouthfuls of quartz reactors, and reaction vessel 6 is arranged on reactor base station 9.

The present invention also comprises the spectrum detection device for detection of air plasma jet composition.Further, spectrum detection device comprises spectrograph 17, fibre-optical fixator 10, optical fiber 19, PC 18, and fibre-optical fixator 10 is fixed on optical fiber 19 1 ends on reactor base station 9, and optical fiber 19 the other ends connect spectrograph 17, and spectrograph 17 connects PC 18.The detection probe of spectrograph 17 is fixed on the quartzy there-necked flask outside near the plasma jet zone, under different sparking voltages, discharging current, working gas composition and gas flow parameter, immerse active particle (as hydroxyl radical free radical, Sauerstoffatom etc.) composition and the relative luminous intensity thereof in the atmospheric pressure plasma zone of liquid.Whether electric machine rotation photodetector unit 24 is connected with control unit 14 with data gathering, for detection of agitator, rotate, and whether monitoring stepper-motor 31 blocks.High-voltage probe 25 1 terminates on the high-tension cable 22 that connects high-voltage power supply 15 and plasma jet shower nozzle 12, one end is connected with oscilloscope 20, plasma jet shower nozzle 12 discharge breakdown voltages, after high-voltage probe 25 decay, can test out accurately on oscilloscope 20.Current probe 21 1 ends are enclosed within on the wire be connected with plasma jet shower nozzle 12, and an end is connected with oscilloscope 20, and the discharging current of this wire of flowing through can test out accurately on oscilloscope 20.The external high-voltage probe 25 of oscilloscope 20 and current probe 21, by regulating the function key of oscilloscope 20, can observe current waveform, voltage waveform, can measure frequency, voltage strength etc. simultaneously.In one-period T, known discharge breakdown voltage u (t), discharging current i (t), according to formula

can calculate discharge power.Gas meter 26 is arranged on the steam line that connects high-voltage power supply 15 and fluid jet nozzle 12, by the RS-485 interface, flow signal is fed back to data gathering and control unit 14, for detection of the uninterrupted of air-flow in pipeline 54.Therefore, controlling stirring velocity and the stirring mechanism in treatment time and jet source coordinates spectrograph 17, high-voltage probe 25, current probe 21, oscilloscope 20, under meter can study the coupled relation between degradation efficiency and each physical parameter.

Further, agitator motor of the present invention and synchronous device 5 comprise stepper-motor 31, stepper-motor 31 synchronous devices, motor drives and is connected stepper-motor 31 with control unit 13, and stepper-motor 31 connects stepper-motor 31 synchronous devices, and stepper-motor 31 synchronous devices connect stirring rod 7.As preferably, agitator motor and synchronous device 5 also comprise reactor fixed link 32, mechanism's mount pad 29, agitator positioning seat 36, ball jacket 33, ball jacket stationary installation, and ball jacket 33 is arranged on reactor fixed link 32 by hook knob 34 stationary installations such as ball jacket such as grade; Ball jacket 33 is fixedly connected with mechanism's mount pad 29, and mechanism's mount pad 29 is fixedly connected with agitator positioning seat 36; Stepper-motor 31 and stepper-motor 31 synchronous devices are mounted on mechanism's mount pad 29; Stirring rod 7 is arranged on agitator positioning seat 36; Be provided with agitating vane 8 on stirring rod 7, between stirring rod 7 and second mouthful 39, be provided with packed-piston 4; Condensation reflux unit 1 is spherical condensation tube, and it comprises water outlet 2 and water-in 3, as shown in Figure 1, by current, is undertaken cooling.

Agitator motor and synchronous device 5 can be controlled the rate flow of waste water solution in reaction, from the chemical kinetics principle analysis, on the one hand, vibrations repeatedly and diffusion can make the reactant molecule energy that can cause reaction occur enough because collision obtains, can reduce on the other hand solvent cage thereby the encirclement of free radical is reduced to react resistance, effectively increase the reacting of active substance and the thing that is degraded " meet with to "; Contact area and the time in waste water solution and plasma jet source be can also change by regulating revolution, larger contact area and speed of response faster obtained; Higher stirring velocity has obtained higher collision rate on the one hand, need but then to consume more energy, and when the toxic molecule in solution and the active particle collision frequency in plasma body zone reach higher frequency, its chemical kinetics is in " activation step control " zone, and higher collision rate is to not contribution of reaction.The present invention tests and shows, when the rotation of stirring rod 7 makes the flow velocity of solution be 1.57～2.20m/s, in water, degradation effect of organic compound is the highest.

Synchronous device can be realized the synchronization control treatment time, comprises churning time and plasma jet source action time to solution; For guaranteeing the steady running of stirring mechanism, need install ball jacket 33 and stationary installation additional on reactor fixed link 32, stepper-motor 31 is arranged on mechanism's mount pad 29, then mechanism's mount pad 29 and agitator positioning seat 36 are fixed up; Stepper-motor 31 fixed positions are apart from operator's console base 40cm (being as the criterion with reference to the scale on scale 28 with sleeve ball stationary installation center correspondence), and motor need be vertical with 49 maintenances of operator's console base, and height control is well afterwards with hook knob 34 lockings.

Problem for stepper-motor 31 rotating speeds lower than the required rotating speed of agitator, design adopts Timing Belt 30 transmissions, referring to Fig. 2, agitator motor and synchronous device 5, mainly comprise the connection mechanism, bearing 35, bearing retaining screw, scale, stirring rod 7 of synchronous machine, Timing Belt 30, large belt wheel, small pulley, motor and transmission mechanism etc.; Timing Belt 30 transmission mechanisms are provided with the belt belt of equidistant profile of tooth and are had corresponding identical belt wheel by an interior perimeter surface and formed, during rotation, by be meshed to transmit motion and power with tooth and the teeth groove of belt wheel, compact construction, without slippage, stable drive, can obtain constant transmitting ratio; Timing Belt 30 is XL spy's light-duty (pitch is 5.080mm), and large belt wheel is that 40 tooth small pulleys are 10 teeth, and center distance of belt wheel is 55.3mm.

The present embodiment adopts motor to drive and the power unit of control unit 13 as whipping appts, under the data gathering and control unit 14 effects of Fig. 4, Fig. 5, Fig. 6, Fig. 7, realizes the rotating speed of agitator and the accurate setting of churning time.

Stepper-motor 31 drives in the agitator working process, known sewage disposal time t _t(s), agitator speed R _m(rpm), the rotating ratio n of Timing Belt 30 and motor step angle θ (°), want to ask the pulse-repetition f that is carried in CP port (the CP end is the pulse signal input control end of driving mechanism) ₀(Hz).

Be connected the rotating ratio n of known Timing Belt 30, the rotating speed R of electric machine rotation between stirring rod 7 and motor with Timing Belt 30 with synchronizing wheel 27 _texpression formula is:

$R_t=\frac{R_M}{n}\left(\mathrm{rpm}\right)---\left(1\right)$

Wastewater treatment time t _tafter, electric machine rotation angle θ _tthe aggregate-value expression formula be:

Obtain t after arrangement _texpression formula be:

$t_t=\frac{{\mathrm{\θ}}_t}{6\frac{R_M}{n}}=\frac{{\mathrm{\θ}}_{t}n}{6R_M}\left(s\right)---\left(3\right)$

The step angle of stepper-motor 31 is θ, wastewater treatment time t _tafter, the umber of pulse n needed _tthe aggregate-value expression formula be:

$n_t=\frac{{\mathrm{\θ}}_t}{\mathrm{\θ}}---\left(4\right)$

Therefore, be carried in the pulse-repetition f of CP port ₀expression formula is:

$f_0=\frac{n_t}{t_t}=\frac{{\mathrm{\θ}}_t}{\mathrm{\θ}{t}_t}=\frac{6R_M}{\mathrm{n\θ}}\left(\mathrm{Hz}\right)---\left(5\right)$

From expression formula (5), the f of loading ₀with treatment time t _tirrelevant, for loading different f ₀, can reach the purpose of regulating stirring velocity, expression formula is:

$R_M=\frac{\mathrm{n\θ}{f}_0}{6}\left(\mathrm{rpm}\right)---\left(6\right)$

Fig. 5 is that in the present invention, motor drives the preferred structure schematic diagram with control unit 13.Data gathering and control unit 14 comprise microcontroller 42 (claiming again MCU), indicating meter 41, keyboard input block 44 and device control end 43, and microcontroller 42 connects respectively indicating meter 41, keyboard input block 44, device control end 43, motor drives and control unit 13, compressed gas source 16, high-voltage power supply 15, gas meter 26, electric machine rotation photodetector unit 24, condensation reflux unit 1.As preferred microcontroller 42, it is the STC12 series monolithic, the driver control unit comprises the L297 chip, the STC12 series monolithic connects the L297 chip, two-phase stepping motor 31 driver elements comprise two L6203 chips, the L297 chip is connected with two L6203 chips respectively, and the L6203 chip connects agitator motor and synchronous device 5.

Microcontroller 42 adopts the STC12 series monolithics, has at a high speed, reduce power consumption and the superpower characteristics such as anti-interference.In the external Fig. 6 circuit of microcontroller 42, stepper-motor 31 drives 5 signal input control ends of chip L297, is respectively: EN, RST,

, CP and DIR end.Open and close with three port controlling compressed gas sources 16, high-voltage power supply 15 and the condensation reflux unit 1 of microcontroller 42.Want in wastewater treatment process to stop to process, directly press the button (being the button of so-called device control end 43) that stops processing port.The ADC of flow output signal in gas meter 26 through connecting microcontroller 42 gathers, and shows on indicating meter 41.Indicating meter 41 adopts the HGS256643 type OLED with SPI interface, interface is used 4 lines: the slave selection wire SS of serial time clock line SCLK, main frame input/slave output data line MISO, main frame output/slave input data line MOSI and Low level effective can show the information such as wastewater treatment time, agitator speed.Keyboard input block 44 modules have 7 buttons and 1 interruption controls interface, be used for respectively being controlled on indicating meter 41OLED move to left cursor, right-cursor, increase numeral, the numeral that reduces, setting, determine and return.Its specific works mode is: after pressing setting key, it is corresponding that the interruption controls end obtains, and indicating meter 41 enters the treatment time, agitator speed, each signal input control end are set and selected interface.While setting the treatment time, press definite key, by mobile cursor, carry out the numerical value adjustment, can show the time value of expectation.Write the global variable that in the Single Chip Microcomputer (SCM) program process, the rotating ratio of the step angle of stepper-motor 31 and Timing Belt 30 is defined as to given value, after the input agitator speed, the pulse-repetition that CP end can controlled machine operation.All the other 4 ports are selected 1/0 signal by button, make at corresponding port and obtain the high/low level needed.Microcontroller 42 ports that electric machine rotation photodetector unit 24 is attached thereto by detection have pulse-free signal, judge whether agitator rotates, and whether monitoring stepper-motor 31 blocks.

Figure 11 is water treatment main program flow chart in the present invention.After general supply is opened, by system initializations such as microcontroller 42, keyboard input block 44 and OLED display units.Wherein, after microcontroller 42 initialize, the port that drives 5 signal input control ends of chip to be connected with stepper-motor 31 in Fig. 4 is lower level, to guarantee stepper-motor 31, drives chip without any input signal.Call the OLED display subroutine shown in Figure 12, carry out the setting for the treatment of time, agitator speed and peripheral hardware control port signal by keyboard.The OLED display screen in the situation that there is button to press, reads key assignments and executes the task, and demonstrates friendly human-computer interaction interface.Judge whether to need to process, as needs are processed, do not need to jump into the display screen show state.Figure 13 is wastewater treatment process figure, call treatment time, stirring velocity and the peripheral hardware control port signal of setting, microcontroller 42 ports that electric machine rotation photodetector unit 24 is attached thereto by detection have pulse-free signal, judge whether agitator rotates, and whether monitoring stepper-motor 31 blocks.If port detected, pulse is arranged, agitator rotates, otherwise shows that stepper-motor 31 is blocked, is back to water treatment main program flow chart setting module, resets peripheral hardware control port signal.After the agitator normal rotation, open after compressed gas source 16 air-flow 54 high-voltage power supply 15 of flowing through is arranged, after the time delay certain hour, delay time is not to entering the time delay waiting status, and the time starts to rear high-voltage power supply 15, fluid jet nozzle 12 places' generation plasma bodys 58.Under the air plasma jet test research device effect with agitating function, carry out wastewater treatment, the treatment time is first closed high-voltage power supply 15 after reaching Preset Time, closes compression source of the gas 16 again after the time delay certain hour.In wastewater treatment process, if run into external interrupt, stop processing, finally be back to main flow chart and finish.

Motor of the present invention drives with control unit 13 and comprises driver control unit, two-phase stepping motor 31 driver elements, microcontroller 42 connects the driver control unit, the driver control unit connects two-phase stepping motor 31 driver elements, and two-phase stepping motor 31 driver elements connect agitator motor and synchronous device 5.The present invention adopts two-phase stepping motor 31 and drive system as the power unit of whipping appts, under the domination of data gathering and control unit 14, realizes the rotating speed of agitator and the accurate setting of churning time.The schematic diagram that Fig. 5 is two-phase bipolar stepping motor 31 driving mechanisms, the control unit of driving mechanism is used L297, and the phase winding driver element is used L6203.EN, RST in figure,

, CP and DIR port be respectively with L297's

with pin is connected.Wherein, the EN end is the enable signal input control end of driving mechanism, and during the driving mechanism normal operation, the EN end sets high level, and when driving mechanism quits work, the EN end sets low level.The RST end is the reset signal input control end of driving mechanism, and when RST sets low level, drive system resets.

half step/synchronizing signal input control the end that end is driving mechanism, during the half step operation of driver drives motor,

end sets high level, during driver drives motor synchronizing operation, end sets low level.CP end be the pulse signal input control end of driving mechanism, stepper-motor 31 increment of stepping forward during this pin input negative pulse, and this stepping is in the positive rise generation of signal.The direction signal input control end that DIP is driving mechanism, the actual sense of rotation of stepper-motor 31 determines by the method for attachment of winding, when changing the level state of this pin, stepper-motor 31 reverse rotations.The VREF end, for the chopper reference voltage input, is connected with the output port of Fig. 7 upper right side amplifier, and the voltage that is added to this pin determines the peak value of winding current.The R/C pin is the chopper end, and copped wave shape and zigzag wave are similar, and chopping frequency is by external RC network parameter decision, and its expression formula is

bS1 and BS2 are machine winding current detection voltage feedback end, with schematic diagram right side sample resistance R _aSand R _bSupper end connect.Connect direct-current machine between OUT1 and OUT2, A+, A-and B+, B-are respectively the positive and negative end of motor A phase and B phase winding.The phase current logic control signal that A, B, C, D are the two-phase induction motor driving mechanism, when the CON pin is lower level,

with work, it is connected with the EN pin of L6203, and now EN is set to high level, and corresponding driving is controlled and is prohibited, and when CON is high level, A, B, C, D work.BOOT1, the external bootstrap capacitor of BOOT2 pin guarantee that the DMOS field effect transistor is effective.Four diode VD1-VD8 form freewheeling circuit, the security of holding circuit.When chip, during in original state, the HOME pin has indication.

Fig. 6 is that two-phase stepping motor 31 single-phase currents promote schematic diagram, and the motor rotation mode can be similar to and be seen as circumferential motion.During the single-phase conducting of motor, definition I _a=I _b=I _phase, I wherein _phasefor phase current; Two while being conducted,

When the winding of stepper-motor 31, from single-phase conduction, (electric current is I _a=I _b=I _phase) while excessively switching on to two-phase, the mould of its current phasor is simultaneously

this will cause the variation due to electric current in stepper-motor 31 rotation processes shake to occur.For the mould that makes stepper-motor 31 total current vector when single-phase energising and two-phase are switched on equates (synthetic magneticstrength equates) simultaneously, need to be by the lifting when the single-phase conduction of the electric current of motor driver.The current increment that need to promote during single-phase conduction $\mathrm{\δI}=I_{\mathrm{AB}}-I_{\mathrm{phase}}=(\sqrt{2}-1)I_{\mathrm{phase}}\≈0.414I_{\mathrm{phase}}.$

Fig. 7 is that single-phase current promotes and half flow control circuit.During single-phase conduction, at 10 pins, obtain a high level, the field effect transistor conducting, the upper right side components and parts are equivalent to non-inverting amplifier.During the two-phase conduction, at 10 pins, obtain a lower level, the field effect transistor cut-off, its equivalent resistance is infinitely great, the upper right side components and parts are equivalent to voltage follower.The output voltage V of non-inverting amplifier and voltage follower _outit is feedback voltage V _rEF, feedback voltage V _rEFequal again sample resistance R _aSor R _bS(be abbreviated as R _s) voltage at two ends, I _phasecalculation expression be:

$I_{\mathrm{phase}}=\frac{V_{\mathrm{REF}}}{R_S}---\left(7\right)$

For non-inverting amplifier, known input resistance R _i, feedback resistance R _f, output voltage V so _outwith input voltage V _infollowing relation is arranged:

$V_{\mathrm{out}}=(1+\frac{R_f}{R_i})V_{\mathrm{in}}\left(V\right)---\left(8\right)$

Definition the current increment that need to promote during known single-phase conduction

so

and then can be in the hope of R _i, R _fvalue, in this circuit, R _iget 5.3K Ω, R _fget 2.2K Ω.

For voltage follower, G=1, output voltage V _outwith input voltage V _infollowing relation is arranged:

V _out＝V _in(V) (9)

Half current control is that outside does not have pulse signal, when motor stops operating in advance, and field effect transistor conducting, outside reference reference voltage V _r, R9 and R10 resistance equate, at output terminal, can realize the function that electric current reduces by half.Can solve break impulse when input electric current by motor by this mode and increase, the motor feels hot, and amount increases severely, and the technical problem that noise is large, guarantee motor performance, extends motor work-ing life.

Fig. 9 is fluid jet nozzle 12 fundamental diagrams; Fluid jet nozzle 12 main bodys are aluminum, and internal and external electrode is copper; Air enters into the shower nozzle cavity from inlet mouth 52, must flow into and produce plasma body between electrode around 56 rotations of electrode in copper, fluid jet nozzle 12 outlets are provided with copper outer electrode 57, form the plasma torch 51 of similar flame profile from fluid jet nozzle 12 exits; Density, frequency and the speed of the plasma body 58 that high-voltage power supply 15 and compressed gas source 16 can control jet shower nozzle 12 produce and formed UV-light, impact intensity of wave, the quantity of the free radical produced etc., thus affect the effect for the treatment of reaction.

During air plasma jet APJ degradation of organic substances, solution passes the flow velocity schematic diagram in plasma body zone as Figure 10.Fluid jet nozzle 12 near normal are inserted three mouthfuls of quartz reactors, the track that organic molecule passes through the plasma body zone can be seen and circle, organic molecule is v (m/s) through the solution stirring flow velocity in plasma body zone, radius is R (m), and the width in plasma body zone is d (m).Below for the derivation organic molecule, pass through the process of the expression formula of plasma body zone required time t (s).

Known agitator speed R _m(rpm), at first rotating speed unit is converted into to rps by rpm, rotating speed R after conversion _nexpression formula be:

$R_N=\frac{R_N}{60}\left(\mathrm{rps}\right)---\left(10\right)$

The circular frequency expression formula of organic molecule circumferential motion is:

$\mathrm{\ω}=\frac{\mathrm{d\θ}}{\mathrm{dt}}=2\mathrm{\π}{R}_N(\mathrm{rad}/s)---\left(11\right)$

The speed expression formula of organic molecule circumferential motion is:

v＝ωR=2πR _NR(m/s) (12)

So, organic molecule passes through the expression formula of plasma body zone required time and is:

$t=\frac{d}{v}=\frac{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="130909164954.png,130909165004.png"\; state="\{\{state\}\}">d</figure-callout>}}{2\mathrm{\&pi;}{R}_{N}R}=\frac{30d}{\mathrm{\&pi;}{R}_{N}R}\left(s\right)---\left(13\right)$

Below in conjunction with accompanying drawing, the present invention is further detailed explanation.

The use step that the air plasma water jets is processed research device plasma jet source water processing reactor is as follows: during use, first stirring rod 7 bodies of rod are passed to packed-piston 4, again stirring rod 7 bodies of rod are fixed on the agitator motor head, then agitating vane 8 are closed up to the middle port (i.e. the 2nd mouth) that stretches into three mouthfuls of quartz reactors; Again by agitating vane 8 at drag pressing gently, blade is opened fully, at the bottom of the blade pitch flask opened, 0.5mm is advisable left and right; Finally packed-piston 4 is fixed on to the middle port of three mouthfuls of quartz reactors; Three mouthfuls of quartz reactors are supported and get well and use retaining clip 45 that its middle port is fixed on the fixed link of reactor by reactor frame 48.The present invention is provided with graduated scale 46 and is used for being convenient to adjusting height.Fluid jet nozzle preferably adopts aluminum 55 bodies.

Fluid jet nozzle 12 stretches into from the 1st mouth of three mouthfuls of quartz reactors, apart from drag central point 3cm left and right, is 30 degree acute angles with stirring rod 7 and is advisable, and with retaining clip 45, fixes; This level altitude of fluid jet nozzle 12 makes can, by the complete submergence of plasma torch 51, effectively utilize the active particle in plasma body zone with the solution of stirring rod 7 circulations.Fluid jet nozzle is fixed on fluid jet nozzle fixed link 50.

Terminate at the 3rd mouth place of three mouthfuls of quartz reactors under the glass spherical prolong, prolong below arm connects cooling water source as water-in by rubber hose, and the top arm is received the tank of lower water as the outlet of water coolant by rubber hose.

By above description, each device is connected, fix by stationary installation.Wherein from left to right, with the chuck intermediate point of stationary installation apart from operator's console base 49 height indicators: prolong level altitude 28cm, stirring head height 40cm, the 2nd mouthful of three mouthfuls of quartz reactor locate stationary installation apart from operator's console base 20cm(reaction flask bottom fixedly iron ring be fixed on apart from about operator's console base 6cm), fluid jet nozzle 12 level altitude 22cm.

Timing Belt 30 on agitator requires large and small belt shaft line parallel while installing, and Timing Belt 30 moves in the plane vertical with two belt wheel axis; Select the Timing Belt 30 of XL spy's light-duty (pitch is 5.080mm), large belt wheel is that 40 tooth small pulleys are 10 teeth, and center distance of belt wheel is 55.3mm.

Three mouthfuls of quartz reactor volumes are 450ml, and each processing reaction liquid 150-200ml is advisable; During processing, first reaction solution to be dealt with is joined in three mouthfuls of quartz reactors, connect the cooling water source of prolong, start whipping appts, allow stirring rod 7 first slowly run (can be by the complete submergence of plasma torch 51 of fluid jet nozzle 12 ejections effectively to utilize the active particle in plasma body zone with the solution of stirring rod 7 circulations) in solution; Open compressed gas source 16, gas stream to be had is crossed high-voltage power supply 15 and is opened high-voltage power supply 15 again, and now there is the plasmatorch ejection in fluid jet nozzle 12 exits; When system can steady running, can regulate the parameters in series that stirs revolution and high-voltage power supply 15.

Installing gas under meter 26 on the steam line that connects high-voltage power supply 15 and fluid jet nozzle 12, high-voltage power supply 15 is restarted in the fashionable source of gas stream to be had, and can protect high-voltage power supply 15 like this; High-voltage probe 25 between fluid jet nozzle 12 and high-voltage power supply 15 is in order to measure the operating voltage of high-voltage power supply 15, current probe 21 is in order to measure the working current of high-voltage power supply 15, and oscilloscope 20 is in order to demonstrate when high-voltage power supply 15 is worked voltage and the current waveform of exporting.

Change plasma jet source high-voltage power supply 15 parameters, as frequency, voltage amplitude, discharge power etc., can regulate the region area that produces plasma body, discharge mode and living radical, ultraviolet ray, Sauerstoffatom and the ozone productive rate of plasma jet shower nozzle 12, thereby change organic degradation rate in sewage.As: under different discharge powers, the content of Sauerstoffatom and ozone is different, and when processing the organic solution of same concentrations, same capability, its degradation efficiency is fully different.Change the output duty cycle of high-voltage power supply 15 internal controllers and change the discharge power in plasma jet source, the discharge mode of fluid jet nozzle 12 is transitioned into powerful spark discharge from low power corona discharge, and the plasma body produced is transitioned into and is rich in Sauerstoffatom from the ozone that is rich in of corona discharge.

Can regulator solution and contact area, contact angle and duration of contact of plasma torch 51 by changing stirring velocity.Experiment shows, contact area, contact angle and duration of contact all can affect treatment effect.Usually the wastewater treatment initial reaction stage, react in the diffusion controlled reaction district, and the activation energy needed is less.Along with the increase of stirring velocity, the frequency of organic molecule and plasma collision increases, and speed of reaction promotes, and in waste water, degradation effect of organic compound obviously increases.But stirring velocity is too high and be unfavorable for organic reaction in solution, after stirring velocity is too high, reaction is in the kinetic control reaction zone, and the activation energy needed is larger, and the speed of particle reaction is slow more than the speed of particle diffusion, can't fully react.Only has when the speed of the speed of particle reaction and particle diffusion approaches the power save mode of water treatment system operation.The present invention tests and shows, when the stirring flow velocity of solution is 1.57～2.20m/s, in waste water, degradation effect of organic compound is the highest.

The material of three mouthfuls of quartz reactors in the present invention is transparency silica glass, and transparency and hardness are better, and optical property is very excellent, in ultraviolet, to the continuous wavelength scope of ir radiation, good transmittance is arranged.In the present invention, can directly utilize spectrograph 17 devices to carry out at-once monitor, the variation of various materials in caused reaction system when especially monitoring parameter changes to kind variation and the change in concentration of various materials in reaction process.

Air plasma water jets of the present invention is processed test research device can produce plasma body active particle stable, high density, abundant chemical reaction while realizing the efficient utilization of plasma body and water treatment, reaction unit controllability of the present invention is strong, and treatment effect is good.Advantage of the present invention is as follows specifically:

The first, for the problems referred to above, the present invention has designed a kind of air plasma water jets and has processed test research device.This device utilizes the plasma jet source to produce to stablize effective plasma body, and it is more abundant that associating stirring mechanism and the oxidizing reaction can make water treatment with the water processing reactor of condensation reflux unit 1 time are carried out, thereby improve processing efficiency.

The second, the plasma jet source consists of high-voltage power supply 15, compressed gas source 16, gas meter 26, air-supply duct, fluid jet nozzle 12 etc.; For generation of the active particle of stablizing effective low-temperature plasma and a large amount of high densitys.

The 3rd, by regulating plasma jet source high-voltage power supply 15 parameters, as frequency, voltage amplitude, discharge power etc., change the discharge mode and free radical, ultraviolet ray, Sauerstoffatom and the ozone productive rate that produce plasma body zone area, plasma jet shower nozzle 12, thereby change organic degradation rate in sewage.As: under different discharge powers, the content of Sauerstoffatom and ozone is different, and when processing the organic solution of same concentrations, same capability, its degradation efficiency is fully different.

The 4th, change the discharge power in plasma jet source by the output duty cycle that changes high-voltage power supply 15 internal controllers, the discharge mode of fluid jet nozzle 12 is transitioned into powerful spark discharge from low power corona discharge, and the plasma body produced is transitioned into and is rich in Sauerstoffatom from the ozone that is rich in of corona discharge.

The 5th, agitator is comprised of agitator motor and synchronous device 5, sleeve ball stationary installation, stirring rod 7 and packed-piston 4.Contact area, contact angle and the duration of contact of by the stirring velocity that changes the solution of processing, coming regulator solution and plasma torch 51.Experiment shows, contact area, contact angle and duration of contact all can affect treatment effect.

The 6th, the synchronous device of agitator motor can be realized the synchronization control treatment time, comprises the churning time of agitator and plasma jet source action time to solution; For guaranteeing the steady running of agitator, need install sleeve ball stationary installation additional on the brandreth montant of agitator, be used for fixing agitator motor and stirring rod 7; The agitator motor fixed position is apart from operator's console base 40cm (being as the criterion with sleeve ball stationary installation center brandreth montant high scale), and motor need keep vertical with operator's console base 49.

The 7th, stirring rod 7 and packed-piston 4 are mainly made by tetrafluoroethylene 53 (PTFE) material, and the stirring rod 7 of this material and piston can acid and alkali-resistances and organic solvent, stable chemical nature are not little with reactant generation side reaction, frictional coefficient, smooth surface is difficult for sticking reactant.

The 8th, stirring rod 7 comprises the body of rod (length 300, diameter 7mm) and agitating vane 8, the body of rod be outside iron bread one deck tetrafluoroethylene 53, agitating vane 8 is all made by tetrafluoroethylene 53, the size that agitating vane 8 opens can be regulated.In the present invention, open to maximum efficiency best.

The 9th, chemical reactor is comprised of three mouthfuls of quartz reactors and condensation reflux unit 1; Three mouthfuls of quartz reactors (three mouthfuls of internal diameters are respectively: 26mm, 24mm, 24mm for capacity 450ml, wall thickness 1mm) are as the solution reaction container 6 of plasma body water treatment; The mouth of internal diameter 26mm is the 1st mouthful, and the built-in silicon rubber O-ring gasket sealed (external diameter 26mm, internal diameter 24mm, thickness 2mm), for placing fluid jet nozzle 12; Middle port (the 2nd mouthful, internal diameter 24mm) stirs piston and stirring rod 7 for placing; Opposite side props up mouthful (the 3rd mouthful, internal diameter 24mm) for connecting spherical condensation tube 47; Three mouthfuls of quartz reactor materials are quartzy, apply this material, can in treating processes, directly carry out instant detection of spectrum and do not produce interference.

The tenth, the glass spherical prolong 47 is connected water coolant as condensation reflux unit 1 with rubber hose, its Main Function is to make action of plasma when the aqueous solution, the steam condensing reflux in prolong produced, fall back in the middle of reactor, to reduce solution losses, improve processing efficiency and reduce experimental error.

Above demonstration and described ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand, and above-described embodiment does not limit the present invention in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection scope of the present invention.

Claims (9)

1. the air plasma water jets is processed test research device, it is characterized in that, comprising:

Reaction vessel, for holding waste water;

The plasma jet generating unit, for generation of the air plasma jet and make to discharge in the waste water of air plasma jet in reaction vessel;

Whipping appts, stirred for the waste water to reaction vessel.

2. air plasma water jets according to claim 1 is processed test research device, it is characterized in that, described plasma jet generating unit comprises compressed gas source, high-voltage power supply, fluid jet nozzle, described compressed gas source connects high-voltage power supply, high-voltage power supply connects fluid jet nozzle, and fluid jet nozzle stretches in the waste water in reaction vessel; Described whipping appts comprises agitator motor and synchronous device, stirring rod, and described agitator motor and synchronous device connect stirring rod, and described stirring rod stretches in the waste water in reaction vessel.

3. air plasma water jets according to claim 2 is processed test research device, it is characterized in that, also comprise data gathering and control unit, gas meter, for detection of electric machine rotation photodetector unit, motor driving and control unit, the first steam line, the second steam line, high-tension cable, high-voltage probe, current probe, the oscilloscope of the rotation situation of whipping appts; Between described compressed gas source and high-voltage power supply, by the first steam line, connect; Between described high-voltage power supply and fluid jet nozzle, by the second steam line, with high-tension cable, be connected respectively; Gas meter is arranged on the second steam line; One end of high-voltage probe connects high-voltage power supply by high-tension cable, and the other end of high-voltage probe connects oscilloscope by high-tension cable, and oscilloscope connects current probe by high-tension cable, and current probe connects fluid jet nozzle by high-tension cable; Motor drives and is connected agitator motor and synchronous device with control unit; Data gathering and control unit are connected motor driving and control unit, compressed gas source, high-voltage power supply, gas meter, electric machine rotation photodetector unit, condensation reflux unit by cable respectively.

4. air plasma water jets according to claim 3 is processed test research device, it is characterized in that, also comprises condensation reflux unit; Described reaction vessel comprises container chamber and is separately positioned on first on container chamber, second mouthful and the 3rd mouthful; Described fluid jet nozzle stretches into first, and described stirring rod stretches into second mouthful, and described condensation reflux unit is arranged on the 3rd mouthful.

5. air plasma water jets according to claim 4 is processed test research device, it is characterized in that, also comprises the spectrum detection device for detection of air plasma jet composition.

6. air plasma water jets according to claim 5 is processed test research device, it is characterized in that, described agitator motor and synchronous device comprise stepper-motor, stepping motor synchronous device, described motor drives and is connected stepper-motor with control unit, stepper-motor connects the stepping motor synchronous device, and the stepping motor synchronous device connects stirring rod.

7. air plasma water jets according to claim 6 is processed test research device, it is characterized in that, described data gathering and control unit comprise microcontroller, indicating meter, keyboard input block and device control end, and microcontroller connects respectively indicating meter, keyboard input block, device control end, motor driving and control unit, compressed gas source, high-voltage power supply, gas meter, electric machine rotation photodetector unit, condensation reflux unit.

8. air plasma water jets according to claim 7 is processed test research device, it is characterized in that, described motor drives with control unit and comprises driver control unit, two-phase stepping motor driver element, microcontroller connects the driver control unit, the driver control unit connects the two-phase stepping motor driver element, and the two-phase stepping motor driver element connects agitator motor and synchronous device.

9. air plasma water jets according to claim 8 is processed test research device, it is characterized in that, described reaction vessel is three mouthfuls of quartz reactors, and described reaction vessel is arranged on the reactor base station; Described the first steam line and the second steam line are polyfluortetraethylene pipe; Described agitator motor and synchronous device also comprise reactor fixed link, mechanism's mount pad, agitator positioning seat, ball jacket, ball jacket stationary installation, and described ball jacket is arranged on the reactor fixed link by the ball jacket stationary installation; Ball jacket is fixedly connected with mechanism's mount pad, and mechanism's mount pad is fixedly connected with the agitator positioning seat; Described stepper-motor and stepping motor synchronous device are mounted on mechanism's mount pad; Stirring rod is arranged on the agitator positioning seat; Be provided with agitating vane on described stirring rod, between described stirring rod and second mouthful, be provided with packed-piston; Described condensation reflux unit is spherical condensation tube; Described gas meter is by RS-485 interface connection data data acquisition and controlling unit; Described microcontroller is the STC12 series monolithic, the driver control unit comprises the L297 chip, the STC12 series monolithic connects the L297 chip, the two-phase stepping motor driver element comprises two L6203 chips, the L297 chip is connected with two L6203 chips respectively, and the L6203 chip connects agitator motor and synchronous device; Described spectrum detection device comprises spectrograph, fibre-optical fixator, optical fiber, PC, and fibre-optical fixator is fixed on optical fiber one end on the reactor base station, and the optical fiber the other end connects spectrograph, and spectrograph connects PC.

Images