CN209215281U - Industrial pH-value self-checking device based on mechanical arm - Google Patents
Industrial pH-value self-checking device based on mechanical arm Download PDFInfo
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- CN209215281U CN209215281U CN201822093428.1U CN201822093428U CN209215281U CN 209215281 U CN209215281 U CN 209215281U CN 201822093428 U CN201822093428 U CN 201822093428U CN 209215281 U CN209215281 U CN 209215281U
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Abstract
The utility model provides a kind of industrial pH-value self-checking device based on mechanical arm, including mobile phone and embedded computer；Embedded computer is connected with triple valve, calibration solution switch valve, ejected wash water switch valve, the sour switch valve of cleaning and mechanical arm respectively；Triple valve connects drug feeding pipeline, filler pipe road and pipeline respectively, the pipeline protrudes into solution stirred tank, and solution stirred tank is connected to by inlet tube with measuring cell, and measuring cell is located in run-off, it is not in contact with run-off at the top of measuring cell with side wall, run-off top plate is equipped with through-hole；Mechanical arm includes strut motor, cross bar motor and pH electrode motor, and pH electrode motor is equipped with pH electrode, and pH electrode is equipped with optoelectronic switch sensing chip.For the self-checking device using convenience the sending and receiving by WIFI data-signal of mobile phone, the automatic cleaning and calibration of long-range control instrument under complex environment can be effectively solved the deficiency and defect of existing measuring device.
Description
Technical field
The utility model belongs to pH value monitoring technical field, is related to a kind of pH value calibrating installation, in particular to one kind is based on
The industrial pH-value self-checking device of mechanical arm.
Background technique
People's increasingly attaching importance to environmental protection problem with the development of economy a, Enterprise Development, should solve Industry Waste first
Water problems, therefore the measurement of waste water pH value obtains everybody and more and more pays close attention to, pH meter is most widely used water analyzer
Device.
Industry, environmental protection industry are commonly encountered pH value of sewage water observing and controlling problem, pH meter glass electrode because its superior characteristic at
For the preferred sensor of pH value measurement.Such as it is generated in sulphuric acid process liquid and waste slag produced often because its acid-base property cannot reach
To direct emission standard, needs plus neutralize drug to be neutralized, be discharged again after reaching discharge standard, therefore online monitoring method neutralizer
PH value be handle sewage main foundation.Here sewage refers to the water that pollution can be generated to pH meter glass electrode sensitive membrane,
Such as the Ca (OH) in above-mentioned neutralizer2、CaSO4Electrode can be prevented from responding dirt in pH meter glass electrode sensitive membrane surface scale
The pH value of water causes pH value measurement cannot proceed normally, therefore the pollution of cleaning pH meter glass electrode sensitive membrane is to ensure that in time
The necessary condition that pH meter works normally.
Currently, capableing of the flow type pH meter of automatic cleaning electrode, using compressed air purging or mechanical hairbrush cleaning cooperation
The cleaning ways such as chemical reagent.When compressed air is cleaned, pH meter is extracted by executing agency, and compressed air is blown by washer jet
Glass electrode sensitivity ball bubble is swept, realizes cleaning.This cleaning way has certain effect to the cleaning of general scale, but for
The dirt that metallic salt crystal and ore pulp are formed in hydrometallurgy process, cleaning effect is bad, and cannot in cleaning process
With titer automatic Calibration, the effect of automatic control is not achieved.The method of mechanical hairbrush fiting chemical reagent cleaning, when cleaning,
Motor to be extracted with executing agency, nozzle sprays chemical reagent, and cooperative mechanical hairbrush cleans vitreous electricity alertness sense ball bubble,
Good cleaning effect can be reached, but do not have automatic control function, to realize automatic control, measuring signal need to be sent into
PH detects instrument and control system, and control system controls dosage and add again by analyzing the pH data of acquisition
The amount of dilution, to achieve the effect that automatic control.The third cleaning way is added on the basis of second of cleaning way
Need staff at the scene in instrument by key control when having added calibration function, but having calibrated, and these instrument in Chemical Manufacture
It is often in the environment of poison gas or the slurries that are corrosive, big inconvenience is brought for daily maintenance.
Summary of the invention
Long-range control, automatic cleaning are able to carry out with calibration based on mechanical arm the purpose of the utility model is to provide a kind of
Industrial pH-value self-checking device.
To achieve the above object, the technical scheme adopted by the invention is that: a kind of industrial pH-value based on mechanical arm is automatic
Calibrating installation, including mobile phone and main controller, main controller include solid-state relay, embedded computer, DC power converter,
WIFI module, touch screen and control circuit, WIFI module are connect with mobile phone signal, solid-state relay, DC power converter,
WIFI module, touch screen and control circuit are connected with embedded computer；Embedded computer and control circuit composition are controlled
System processed；
Embedded computer respectively with triple valve, calibration solution switch valve, ejected wash water switch valve, clean sour switch valve and machinery
Arm is connected；
Three mouths of triple valve connect drug feeding pipeline, filler pipe road and pipeline respectively, which stretches at the top of solution stirred tank
Enter in solution stirred tank, solution stirred tank is connected to by inlet tube with measuring cell, and measuring cell is located in run-off, at the top of measuring cell
And having gap at the top of side wall and run-off between side wall, run-off top plate is equipped with through-hole, is additionally provided on run-off side wall
Outlet tube；
The interface of calibration solution switch valve, the interface of ejected wash water switch valve and clean sour switch valve interface pass through pipeline with
The connection of pH meter cleaning device, sets that there are three optoelectronic switches on pH meter cleaning device side by side；
The mechanical arm includes pedestal, and strut motor is equipped on pedestal, and strut, strut electricity are equipped on strut motor
Machine driving strut moves up and down, and is equipped with cross bar motor at the top of strut, and cross bar, one end of cross bar and cross are equipped on cross bar motor
Bar motor is connected, and cross bar is that the other end is equipped with pH electrode motor, and pH electrode motor is equipped with pH electrode, and the lower end of pH electrode is
Measuring probe, the pH electrode between measuring probe and pH electrode motor are equipped with optoelectronic switch sensing chip.
Existing pH meter test cleaning device is that someone uses pH test paper pH value determination at the scene mostly, then by comparing pH
Test paper measures the actual pH of solution and the measured value of field instrument carries out manual calibration, and Manual-cleaning glass to detection instrument
Fouling on glass electrode probe, and the environment where industry PH detection instrument is often relative complex, some are even in sulfur dioxide
The very high place of flue gas concentration, therefore big inconvenience, the automatic calibration cartridge of the utility model are brought to the daily maintenance of equipment
The beneficial effect set is that, using convenience the sending and receiving by WIFI data-signal of mobile phone, long-range control is in complicated ring
The automatic cleaning and calibration of instrument, can be effectively solved the deficiency and defect of existing measuring device under border.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model pH value self-checking device.
Fig. 2 is the connection signal of three switch valves and pH meter cleaning device in the utility model pH value self-checking device
Figure.
Fig. 3 is the schematic diagram of mechanical arm in the utility model pH value self-checking device.
Fig. 4 is the schematic diagram of control system in the utility model pH value self-checking device.
Fig. 5 is the schematic diagram of MCU host circuit in the utility model pH value self-checking device.
Fig. 6 is the schematic diagram of WIFI module circuit in the utility model pH value self-checking device.
Fig. 7 is motor interface circuit.
Fig. 8 is power circuit.
In FIG. 1 to FIG. 4: 1. mobile phones, 2. drug feeding pipelines, 3. triple valves, 4. filler pipe roads, 5. solution stirred tanks, 6. feed liquors
Pipe, 7. run-offs, 8. measuring cells, 9. outlet tubes, 10. flanges, 11.pH meter cleaning calibrating installation, 12. waste liquid outlets, 13. photoelectricity
Switch, 14. mechanical arms, 15. calibration solution switch valves, 16. ejected wash water switch valves, 17. clean sour switch valve, 18. electrode signals
Orchestration, 19. brackets, 20. solid-state relays, 21. embedded computers, 22. DC power converters, 23.WIFI module, 24.
Touch screen, 25. main controllers, 26. connecting terminal blocks, 27. cleaning acid tubes, 28. cleaning water pipes, 29. calibration liquid pipes, 30. first electricity
Magnet valve, 31. second solenoid valves, 32. third solenoid valves, 33. positive displacement pumps, 34. waste liquid barrels, 35. first liquid feeding pumps, 36. second into
Liquid pump, 37. third liquid feeding pumps, 38. pedestals, 39. strut motors, 40. struts, 41. cross bar motors, 42. cross bars, 43.pH electrode,
44. electrode motor, 45. optoelectronic induction pieces, 46. measuring probes, 47. first signal cables, 48. second signal cables, 49. clocks
Circuit, 50. power circuits, 51. mechanical arm control circuits, 52.WIFI modular circuit, 53. keyboard input circuits, 54. solenoid valves
Control circuit, 55. current input circuits.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the utility model pH value self-checking device, including mobile phone and bracket 19, it is equipped on bracket 19
Main controller 25, main controller 25 include solid-state relay 20, embedded computer 21, DC power converter 22, WIFI module 23,
Touch screen 24, connecting terminal block 26 and control circuit, WIFI module 23 are connect with 1 signal of mobile phone, solid-state relay 20, direct current
Source converter 22, WIFI module 23, touch screen 24, connecting terminal block 26 and control circuit are connected with embedded computer 21
It connects；
Embedded computer 21 and control circuit forming control system.
Connecting terminal block 26 is connected by the first signal cable 47 with the output end of electrode signal adaptation 18, the first letter
Number two 47 end of cable is respectively equipped with cable seal head；First signal cable 47 respectively with triple valve 3, calibration solution switch valve 15, clear
Wash water switch valve 16, the sour switch valve 17 of cleaning are connected with mechanical arm 14, and the input terminal of electrode signal adaptation 18 passes through second
Signal cable 48 is connected with mechanical arm 14；The joint of the second signal cable and 18 input terminal of electrode signal adaptation is equipped with electricity
Cable seal head；
First mouth of triple valve 3 connects drug feeding pipeline 2, and second mouth of triple valve 3 connects filler pipe road 4, and the of triple valve 3
Three mouth adapter tube roads, the pipeline are protruded into solution stirred tank 5 at the top of solution stirred tank 5, are set on the side wall of solution stirred tank 5
There is inlet tube 6, one end of inlet tube 6 and solution stirred tank 5 are affixed, and the side wall that the other end of inlet tube 6 passes through run-off 7 protrudes into
In run-off 7, and it is affixed with the side wall of the measuring cell of tubular 8, and inlet tube 6 is connected to solution stirred tank 5 and measuring cell 8, measuring cell 8
In run-off 7, measuring cell 8 is fixed on the bottom plate of run-off 7, is had gap at the top of 8 top of measuring cell and run-off 7, is surveyed
There is gap between amount 8 side wall of pond and 7 side wall of run-off, 7 top plate of run-off is equipped with through-hole, is additionally provided on the side wall of run-off 7
Outlet tube 9,9 one end of outlet tube and 7 side wall of run-off are affixed, and 9 other end of outlet tube is connected with flange 10；
The interface of the interface of calibration solution switch valve 15, the interface of ejected wash water switch valve 16 and the sour switch valve 17 of cleaning passes through
Pipeline connection corresponding with pH meter cleaning device 11, sets that there are three optoelectronic switches 13 on pH meter cleaning device 11 side by side.
Positive displacement pump 33 is equipped in pH meter cleaning device 11, the leakage fluid dram of positive displacement pump 33 stretches out waste liquid outlet 12 and waste liquid barrel 34
Connection, as shown in Figure 2；Calibration liquid pipe 29 in pH meter cleaning device 11 passes through the first pipeline and the first of calibration solution switch valve 15
A mouthful of connection, first pipeline are equipped with third liquid feeding pump 37, and the cleaning water pipe 28 in pH meter cleaning device 11 passes through the second pipe
Line is connected to first mouth of ejected wash water switch valve 16, which is equipped with the first liquid feeding pump 35, pH meter cleaning device 11
Interior cleaning acid tube 27 is connected to by third pipeline with first mouth for cleaning sour switch valve 17, which is equipped with second
Liquid feeding pump 36；The inlet of positive displacement pump 33 is connected to cleaning acid tube 27, cleaning water pipe 28 and calibration liquid pipe 29 respectively by pipeline,
It is connected to positive displacement pump 33 and cleans the pipeline of acid tube 27 equipped with the first solenoid valve 30, connection positive displacement pump 33 and the pipe for cleaning water pipe 28
Road is equipped with second solenoid valve 31, and connection positive displacement pump 33 and the pipeline for calibrating liquid pipe 29 are equipped with third solenoid valve 32.
As shown in figure 3, the mechanical arm 14 in the utility model pH value self-checking device, including pedestal 38, on pedestal 38
Strut motor 39 is installed, strut 40 is installed on strut motor 39, strut motor 39 drives strut 40 to move up and down, strut 40
Top is equipped with cross bar motor 41, and cross bar 42 is equipped on cross bar motor 41, and one end of cross bar 42 is connected with cross bar motor 41, horizontal
Bar 42 is that the other end is equipped with pH electrode motor 44, and pH electrode motor 44 is equipped with pH electrode 43, and the lower end of pH electrode 43 is to survey
Amount probe 46, the pH electrode 43 between measuring probe 46 and pH electrode motor 44 are equipped with optoelectronic switch sensing chip 45.
Strut motor 39, cross bar motor 41, pH electrode motor 44 are connected with the first signal cable 47 respectively；PH electrode 43 with
Second signal cable 48 is connected.
As shown in figure 4, the control system in the utility model pH value self-checking device, including embedded computer 21,
Embedded computer 21 respectively with clock circuit 49, power circuit 50, mechanical arm control circuit 51, WIFI module circuit 52, key
Disk input circuit 53, solenoid valve control circuit 54 are connected with current input circuit 55.
Mechanical arm control circuit 51 controls strut motor 39, cross bar motor 41 and pH electrode motor 44 respectively；Electric current input
Circuit 55 is connected with pH electrode 43；Solenoid valve control circuit 54 is opened with triple valve 3, calibration solution switch valve 15, ejected wash water respectively
Close valve 16, clean sour switch valve 17, the first solenoid valve 30, second solenoid valve 31, third solenoid valve 32, positive displacement pump 33, first into
Liquid pump 35, the second liquid feeding pump 36 are connected with third liquid feeding pump 37.
MCU host circuit is used in embedded computer 21, which includes the first chip U1, such as Fig. 5 institute
Show.First chip U1 uses STM32F103 chip, and the 5th foot of the first chip U1 connects one end of crystal oscillator XTAL and first capacitor C1,
The 6th foot of first chip U1 meets one end of crystal oscillator XTAL and the second capacitor C2, the other end of first capacitor C1 and the second capacitor C2
The other end ground connection；The 7th foot of first chip U1 connects cathode, the second diode of one end first diode D1 of third capacitor C3
The anode of D2 and one end of key S1, positive and first resistor R1 the termination power VCC3.3V of first diode D1, first
One end of another termination second resistance R2 of resistance R1, the other end and second of the other end of second resistance R2, third capacitor C3
The cathode of diode D2 connects the other end of key S1；The 9th foot and the 24th foot of first chip U1 meets power supply VCC3.3V, and first
The 23rd foot of chip U1 is grounded.The 37th foot of first chip U1 connects the 4th foot of connecting terminal J1, the 5th foot of connecting terminal J1, third
The 34th foot of one end of resistance R3 and the first chip U1 connect the 36th foot of the first chip U1, the other end of 3rd resistor R3 and wiring
The 1st foot of terminal J1 meets power supply VCC3.3V；The 2nd foot of connecting terminal J1 is grounded, and the 3rd foot of connecting terminal J1 meets NRST.First
Chip U1 respectively with power circuit 50, mechanical arm control circuit 51, WIFI module circuit 52, keyboard input circuit 53, solenoid valve
Control circuit 54 is connected with current input circuit 55.
It is reset circuit below the first chip U1 external left in Fig. 5, when system worked well, NRST pin is raised supreme
Level, when key S1 is pressed, NRST pin is pulled low to low level, completes system reset；It is clock above reset circuit
Circuit provides 2.4576MHZ for system；Upper right side is SWD download circuit, is downloaded for program.
It is illustrated in figure 6 WIFI module circuit 52.The HF- that WIFI module circuit 52 is produced using Shanghai Han Feng company
LPB100 series Wi-Fi mould group is as the information exchange between cell phone application and main control chip.Its built-in embedded firmware and transmitting-receiving
Antenna, can be by the low side serial communication of this module and traditional home appliance, to realize the access to household electrical appliances Internet of Things.Wi-Fi module
Received coded data transmission to MCU internal data registers, cleaned by serial ports (UART) calibrating installation and
The feedback states of pH electrode measurement are transferred to serial ports by information processing, and feed back to smart phone by Wi-Fi module and show
Show.
Fig. 7 is motor interface circuit.SERVOR-32 controller is supported while connecing 12 bus steering engines.Due to bus rudder
Machine is controlled using serial ports, can realize the transmitting-receiving of serial data by single line using the semiduplex mode of STM32 serial ports 3, real
The control of existing steering engine and the reading of angle.
If Fig. 8 is power circuit.The steady operation of power circuit is the basis of whole system steady operation, and power circuit is
Modules provide stable DC source, guarantee that it can be worked normally.Voltage needed for the utility model hardware circuit is
5V and 3.3V, and the voltage that battery provides is therefore 12V has to pass through voltage conversion after, needed for can providing for each chip
Voltage.
The conversion of 5V voltage is using LM2576-3V3 chip.LM2576 series is that National Semiconductor is raw
The 3A electric current output buck switching mode integrated stable voltage circuit of production, it includes fixed oscillator (52kHz) and benchmark pressure stabilizing
Device (1.23V), and there is perfect protection circuit, including current limit and Thermal shutdown circuit etc., it is only needed seldom using the device
Peripheral components can constitute efficient voltage regulator circuit.LM2576 series includes LM2576(maximum input voltage 40V) and
LM2576HV(maximum input voltage 60V) two series.Each series of products are provided with 3.3V(-3.3), 5V(-5.0),
12V(-12), 15V(-15) and multiple voltage class products such as adjustable (- ADJ).In addition, the chip additionally provides working condition
External control pin.
The use of the utility model pH value self-checking device:
Flange 10 is connected with liquid outlet pipe, fluid to be measured is injected into solution stirred tank 13, by inlet tube 6 after stirring
It flows into measuring cell 8, after liquid is full of measuring cell 8, is overflow to run-off 7 at the top of measuring cell 8, the liquid in run-off 7
When reaching outlet tube 9, flowed out from outlet tube 9.Pass through the branch of three-freedom mechanical arm after pH electrode 43 completes cleaning calibration
Bar motor 39, cross bar motor 41 and pH electrode motor 44 jointly control to be inserted into measuring cell 8 through the through-hole on 7 top plate of run-off,
Fluid to be measured in measuring cell 8 is measured, pH electrode 43 measures pH voltage signal, is shielded by second signal cable 48(5 core
Cable) signal input terminal is correspondingly connected with by the cable seal head on electrode signal adaptation 18, signal is put by 1 ︰ 1
Greatly, signal impedance is converted into 500 Ω from 10K Ω, passes through main controller 25 from the first signal cable 47 for being connected to output terminal
Cable seal head access main controller 25 in connecting terminal block 26 on, and enter embedded computer 21 carry out pH conversion after point
It for two-way, is transferred data on touch screen 24 shown with serial ports all the way, another way is exported in one's hands by WIFI module 23
Machine 1, while mobile phone 1 can send control signal to WIFI module 23, after WIFI module 23 receives data according to received data
The embedded computer 21 being transmitted in control system, embedded computer 21 export corresponding control signal and are transferred to corresponding control
Circuit processed, these control circuits control corresponding performer movement respectively:
The cleaning of pH electrode 43 and calibrating mode one (fixed time cleaning or hand-operated forced cleaning calibration): by touch screen 24 or
Cell phone application is that embedded computer 21 sets scavenging period interval and scavenging period, 21 timing of embedded computer to cleaning week
When the phase, cleaning calibration signal is issued, it is electric that solid-state relay 20 obtains mechanical arm control circuit 51, at this point, strut motor 39, cross bar
Motor 41 and pH electrode motor 44 are dynamic by respective running order, motor rotational angle and motor rotation speed is pre-set
Make, mechanical arm 14 is started to work.
The cleaning of pH electrode 43 and calibrating mode two (automatic cleaning): 21 real-time monitoring pH electrode 43 of embedded computer hair
Voltage signal out, and signal ripple is counted, after 46 fouling of measuring probe of 43 front end of pH electrode, pH electrode 43
Sensitivity can reduce, and signal ripple can reduce, when ripple range is continuously lower than 0.2mv in the regular hour, embedding assembly
Machine 21 issues purge signal, at this point, strut motor 39, cross bar motor 41 and pH electrode motor 44 are respective dynamic by pre-setting
Make order, motor rotational angle and motor rotation speed movement, mechanical arm 14 to start to work.
The working method of mechanical arm 14:
The locking last time of embedded computer 21 receives the pH measuring signal of 4~20mA, and the signal of pH electrode 43 is not
It is transferred to embedded computer 21 again, mechanical arm control circuit 51 controls signal is transmitted to strut motor 39,41 and of cross bar motor
Electrode motor 44.Step 1, strut motor 39, cross bar motor 41 and the linkage of electrode motor 44 are inserted into pH electrode 43 in Fig. 2
Acid tube 27 is cleaned, at this point, the optoelectronic switch 13 on pH meter cleaning calibrating installation 11 incudes the light inductance being nested on pH electrode 43
Piece 45 is answered, signal is transferred to embedded computer 21, after embedded computer 21 receives the signal, opens and cleans sour switch valve
17, third solenoid valve 30, the second liquid feeding pump 36 and positive displacement pump 33, make dilute hydrochloric acid solution squeeze into cleaning acid tube by the second liquid feeding pump 36
27 pairs of pH electrodes 43 carry out pickling, start to alarm if the insertion dislocation of pH electrode 43 disconnects optoelectronic switch 13；In pickling
Cheng Zhong, mechanical arm control circuit 51 export PWM wave, and control pH electrode motor 44 clockwise, counterclockwise enclose by each alternate rotation one, with
Achieve the purpose that abundant pickling, pickling time is set as 5 minutes, and after five minutes, mechanical arm 14 is sour from cleaning by pH electrode 43 for timing
It is extracted in pipe 27；Step 2, by the insertion cleaning water pipe 28 of pH electrode 43 after pickling, the induction of optoelectronic switch 13 is nested in pH electricity
Optoelectronic induction piece 45 on pole 43, signal is transferred to embedded computer 21, after embedded computer 21 receives the signal, opens
Ejected wash water switch valve 16, second solenoid valve 31, the first liquid feeding pump 35 and positive displacement pump 33 rinse pH electrode 43, timing 5 with ejected wash water
Electrode is extracted after minute；Step 3, the insertion calibration liquid pipe 29 of pH electrode 43 after clear water is rinsed, judges to be inserted into through optoelectronic switch
Fixed bit postpones, and opens calibration solution switch valve 15 and third liquid feeding pump 37, third solenoid valve 32 are in close state, liquid to be calibrated
After injection calibration liquid pipe 29 two minutes, closing calibration solution switch valve 15 and third liquid feeding pump 37, timing five minutes, embedding assembly
Machine 21 connects 4~20mA measuring signal from pH electrode 43.
The automatic calibrating principle of PID: pH electrode 43 issues measuring signal, is sent into embedded computer 21 and is used as PV value, mobile phone
APP or touch screen input calibration solution actual pH, and are transferred to embedded computer 21 and are used as Setting signal SV value, embedded meter
Calculation machine 21 compares the difference of measuring signal and Setting signal, if difference, within 0.1mV, mechanical arm 14 acts, by pH electrode
43 are inserted into measuring cell 8 and measure, and calculate by PID, issue the control signal MV of 4~20mA, and control signal input is embedding
Enter formula computer 21, then, embedded computer 21 sends signal to valve and executing agency, realizes automatic adjustment and control
System.
Claims (3)
1. a kind of industrial pH-value self-checking device based on mechanical arm, which is characterized in that including mobile phone (1) and main controller
(25), main controller (25) includes solid-state relay (20), embedded computer (21), DC power converter (22), WIFI mould
Block (23), touch screen (24) and control circuit, WIFI module (23) are connect with mobile phone (1) signal, solid-state relay (20), direct current
Power adapter (22), WIFI module (23), touch screen (24) and control circuit are connected with embedded computer (21)；It is embedding
Enter formula computer (21) and control circuit forming control system；
Embedded computer (21) is sour with triple valve (3), calibration solution switch valve (15), ejected wash water switch valve (16), cleaning respectively
Switch valve (17) is connected with mechanical arm (14)；
Three mouths of triple valve (3) connect drug feeding pipeline (2), filler pipe road (4) and pipeline respectively, and the pipeline is from solution stirred tank
(5) top is protruded into solution stirred tank (5), and solution stirred tank (5) is connected to by inlet tube (6) with measuring cell (8), measuring cell
(8) it is located in run-off (7), has gap, overflow at the top of measuring cell (8) and at the top of side wall and run-off (7) between side wall
Pond (7) top plate is equipped with through-hole, is additionally provided with outlet tube (9) on run-off (7) side wall；
The interface of the interface of calibration solution switch valve (15), the interface of ejected wash water switch valve (16) and the sour switch valve (17) of cleaning is logical
It crosses pipeline to be connected to pH meter cleaning device (11), be set side by side on pH meter cleaning device (11) there are three optoelectronic switch (13)；
The mechanical arm (14) includes pedestal (38), is equipped on pedestal (38) strut motor (39), on strut motor (39)
It is equipped with strut (40), strut motor (39) driving strut (40) moves up and down, and is equipped with cross bar motor at the top of strut (40)
(41), it is equipped with cross bar (42) on cross bar motor (41), one end of cross bar (42) is connected with cross bar motor (41), and cross bar (42) is
The other end is equipped with pH electrode motor (44), and pH electrode motor (44) is equipped with pH electrode (43), and the lower end of pH electrode (43) is
Measuring probe (46), the pH electrode (43) between measuring probe (46) and pH electrode motor (44) are equipped with optoelectronic switch sensing chip
(45).
2. the industrial pH-value self-checking device based on mechanical arm as described in claim 1, which is characterized in that the pH meter
Positive displacement pump (33) are equipped in cleaning device (11), the leakage fluid dram of positive displacement pump (33) is connected to waste liquid barrel (34)；PH meter cleaning device
(11) the calibration liquid pipe (29) in is connected to by the first pipeline with first mouth of calibration solution switch valve (15), on first pipeline
Equipped with third liquid feeding pump (37), the cleaning water pipe (28) in pH meter cleaning device (11) passes through the second pipeline and ejected wash water switch valve
(16) first mouth connection, second pipeline are equipped with the first liquid feeding pump (35), the cleaning acid in pH meter cleaning device (11)
Pipe (27) is connected to by third pipeline with first mouth for cleaning sour switch valve (17), which is equipped with the second liquid feeding pump
(36)；The inlet of positive displacement pump (33) by pipeline respectively with cleaning acid tube (27), cleaning water pipe (28) and calibrate liquid pipe (29)
Connection, connection positive displacement pump (33) and clean acid tube (27) pipeline be equipped with the first solenoid valve (30), connection positive displacement pump (33) and
The pipeline for cleaning water pipe (28) is equipped with second solenoid valve (31), is connected on the pipeline of positive displacement pump (33) and calibration liquid pipe (29) and sets
There are third solenoid valve (32).
3. the industrial pH-value self-checking device based on mechanical arm as described in claim 1, which is characterized in that the control
System includes embedded computer (21), embedded computer (21) respectively with clock circuit (49), power circuit (50), mechanical
Arm control circuit (51), WIFI module circuit (52), keyboard input circuit (53), solenoid valve control circuit (54) and electric current input
Circuit (55) is connected；
Mechanical arm control circuit (51) is connected with strut motor (39), cross bar motor (41) and pH electrode motor (44) respectively；Electricity
Stream input circuit (55) is connected with pH electrode (43)；Solenoid valve control circuit (54) is switched with triple valve (3), calibration solution respectively
Valve (15), ejected wash water switch valve (16), the sour switch valve (17) of cleaning are connected with pH meter cleaning device (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093428.1U CN209215281U (en) | 2018-12-13 | 2018-12-13 | Industrial pH-value self-checking device based on mechanical arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822093428.1U CN209215281U (en) | 2018-12-13 | 2018-12-13 | Industrial pH-value self-checking device based on mechanical arm |
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| CN209215281U true CN209215281U (en) | 2019-08-06 |
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| CN201822093428.1U Expired - Fee Related CN209215281U (en) | 2018-12-13 | 2018-12-13 | Industrial pH-value self-checking device based on mechanical arm |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110412304A (en) * | 2019-08-14 | 2019-11-05 | 上海汇像信息技术有限公司 | PH value test macro and pH value automated testing method |
| CN110568049A (en) * | 2019-09-12 | 2019-12-13 | 中国原子能科学研究院 | Calibration method of oxygen analyzer |
| CN111103338A (en) * | 2019-12-10 | 2020-05-05 | 南京理工大学 | Multi-mode automatic pH measuring instrument based on network and measuring method thereof |
| CN115291003A (en) * | 2022-07-04 | 2022-11-04 | 上海博取仪器有限公司 | PH electrode automatic checkout device |
| CN110412304B (en) * | 2019-08-14 | 2024-06-04 | 上海汇像信息技术有限公司 | PH value testing system and automatic PH value testing method |
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2018
- 2018-12-13 CN CN201822093428.1U patent/CN209215281U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412304A (en) * | 2019-08-14 | 2019-11-05 | 上海汇像信息技术有限公司 | PH value test macro and pH value automated testing method |
| CN110412304B (en) * | 2019-08-14 | 2024-06-04 | 上海汇像信息技术有限公司 | PH value testing system and automatic PH value testing method |
| CN110568049A (en) * | 2019-09-12 | 2019-12-13 | 中国原子能科学研究院 | Calibration method of oxygen analyzer |
| CN111103338A (en) * | 2019-12-10 | 2020-05-05 | 南京理工大学 | Multi-mode automatic pH measuring instrument based on network and measuring method thereof |
| CN115291003A (en) * | 2022-07-04 | 2022-11-04 | 上海博取仪器有限公司 | PH electrode automatic checkout device |
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