CN105044098B - A kind of fully automatic integral hardness online monitoring instruments being easily installed - Google Patents
A kind of fully automatic integral hardness online monitoring instruments being easily installed Download PDFInfo
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- CN105044098B CN105044098B CN201510386138.4A CN201510386138A CN105044098B CN 105044098 B CN105044098 B CN 105044098B CN 201510386138 A CN201510386138 A CN 201510386138A CN 105044098 B CN105044098 B CN 105044098B
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Abstract
The invention discloses a kind of fully automatic integral hardness online monitoring instruments being easily installed,Including reaction bulb,The contactless pipeline liquid level sensors of 2#WS03A and the contactless pipeline liquid level sensors of 1#WS03A are disposed with the middle part of reaction bulb,The contactless pipeline liquid level sensors of 2#WS03A and the contactless pipeline liquid level sensors of 1#WS03A are connected to SF0808RT PLC state controllers,Eriochrome black T dropper and EDTA droppers are also inserted with the bottle cap of reaction bulb,EDTA droppers are connected by polytetrafluoroethylene (PTFE) capillary soft tube with EDTA solution reservoirs,1#Q22XD miniature electromagnetic valves are provided with eriochrome black T dropper,OMROW microswitches are installed with 1#Q22XD miniature electromagnetic valves,OMROW microswitches are also connected to SF0808RT PLC state controllers,The present invention solves water hardness monitoring method time lag present in prior art,Efficiency is low and the problem of complex operation fluctuation of service.
Description
Technical field
The invention belongs to industrial waste water treatment, and in particular to a kind of fully automatic integral hardness being easily installed
Online monitoring instruments.
Background technology
At present, in Industrial Waste Water Treatments industry hardness measure, particularly on hardness in terms of for Treated sewage reusing
In the process system of removal, known system production water hardness monitoring method is led to after mainly carrying out field sampling by laboratory personnel
Cross artificial method for measuring and obtain production water hardness index, have no the hardness real time and on line monitoring equipment at the scene of being mountable to.Therefore,
It is some when especially occurring emergency situations in water treatment procedure in the situation more and big distribution in face of sampling number
Be related to hardness removal system whether normal operation, or accident occur after whether have in real time record as analysis when, by chemically examining
Personnel are sampled the hysteresis quality and delay property for analyzing just seem time and efficiency, can not show that system produces the water hardness in time, no
The complicated property of laboratory personnel's operation is increase only, and to being caused seriously with being produced as the stable operation of the sewage plant of top priority
Influence.
The content of the invention
It is an object of the invention to provide a kind of fully automatic integral hardness online monitoring instruments being easily installed, and solve existing
There is the problem of low water hardness monitoring method time lag present in technology, efficiency and complex operation fluctuation of service.
The technical solution adopted in the present invention is a kind of fully automatic integral hardness online monitoring instruments being easily installed,
Including reaction bulb, the contactless pipeline liquid level sensors of 2#WS03A are disposed with the middle part of reaction bulb and 1#WS03A is non-contact
Formula pipeline liquid level sensor, the contactless pipeline liquid level sensors of 2#WS03A and the contactless pipeline liquid level sensors of 1#WS03A
SF0808RT-PLC state controllers are connected to, external power supply, reaction bulb are connected with SF0808RT-PLC state controllers
Bottle cap on be provided with blow vent and stirring motor, stirring motor connects with SF0808RT-PLC state controllers, stirring motor
Impeller extend the bottom of reaction bulb, meanwhile, eriochrome black T dropper and EDTA droppers, EDTA droppers are also inserted with the bottle cap of reaction bulb
It is connected by polytetrafluoroethylene (PTFE) capillary soft tube with EDTA solution reservoirs, 2#Q22XD miniature electromagnetic valves, 2# is provided with EDTA droppers
Q22XD miniature electromagnetic valves are also connected with SF0808RT-PLC state controllers, and it is non-contact to be additionally provided with 3#WS03A on EDTA droppers
Formula pipeline liquid level sensor, the contactless pipeline liquid level sensors of 3#WS03A are connected with SF0808RT-PLC state controllers,
Be additionally provided with TLM-0800 non-contact displacement transducers beside EDTA droppers, TLM-0800 non-contact displacement transducers with
XMT-8000P intelligent digital display controls instrument connects, and is provided with 1#Q22XD miniature electromagnetic valves on eriochrome black T dropper, 1#Q22XD is micro-
OMROW microswitches are installed with type magnetic valve, OMROW microswitches are also connected to SF0808RT-PLC state controllers.
The features of the present invention also resides in,
The bottle cap of reaction bulb is also connected with sample bucket and ammonia buffer tank by polytetrafluoroethylene (PTFE) capillary soft tube respectively, instead
The bottom of bottle portion of bottle is answered also to be connected with waste liquid evacuated tube, waste liquid evacuated tube is extended in waste liquid barrel, and ZW- is provided with waste liquid evacuated tube
025 normally closed solenoid valve, the bottom outer wall side of reaction bulb are additionally provided with EB-CIP intelligence color sensors, the normally closed electromagnetism of ZW-025
Valve, EB-CIP intelligence color sensor are connected with SF0808RT-PLC state controllers.
1#104K peristaltic pumps are provided with polytetrafluoroethylene (PTFE) capillary soft tube between reaction bulb and sample bucket, 1#104K is wriggled
Pump is also connected with SF0808RT-PLC state controllers simultaneously, the polytetrafluoroethylene (PTFE) capillary between reaction bulb and ammonia buffer tank
2#104K peristaltic pumps are provided with flexible pipe, 2#104K peristaltic pumps are also connected with SF0808RT-PLC state controllers.
The contactless pipeline liquid level sensors of 2#WS03A and the contactless pipeline liquid levels of 1#WS03A are provided with reaction bulb
The diameter of the opening position of sensor is less than the diameter at reaction bulb both ends.
Stirring motor is arranged at the bottle cap center position of reaction bulb.
3#104K peristaltic pumps are additionally provided with polytetrafluoroethylene (PTFE) capillary soft tube between EDTA droppers and EDTA solution reservoirs,
3#104K peristaltic pumps are also connected with SF0808RT-PLC state controllers.
Auxiliary reclay is provided with SF0808RT-PLC state controllers, is also set on SF0808RT-PLC state controllers
It is equipped with manual monitoring button, automatic control monitoring button, stop button.
The invention has the advantages that a kind of fully automatic integral hardness online monitoring instruments being easily installed, using hard
The National Standard Method principle of detection is spent, ammonia buffer is added with eriochrome black T into raw water water sample, with color reaction device by automatic ration
Based on carrying out signal feedback to metachromasia caused by EDTA titration, as built in XMT-8000P intelligent digital display control instrument
Hardness calculation formula the programming realization conversion and display of data signal transmitted to displacement sensor, draw hardness determination knot
Fruit.
Brief description of the drawings
Fig. 1 is a kind of structural representation for the fully automatic integral hardness online monitoring instruments being easily installed of the present invention；
Fig. 2 is a kind of SF0808RT-PLC shapes for the fully automatic integral hardness online monitoring instruments being easily installed of the present invention
The structural representation of state controller.
In figure, 1.SF0808RT-PLC state controllers, 2. reaction bulbs, 3. eriochrome black T droppers, 4.EDTA droppers, 5. stirrings
Motor, 6. impellers, 7. ammonia buffers, 8.EDTA solution reservoirs, 9. sample buckets, 10. waste liquid barrels, 11.XMT-8000P intelligence numbers
Word display control instrument, 12. blow vents, 13.1#104K peristaltic pumps, the contactless pipeline liquid level sensors of 14.1#WS03A, 15.2#
The contactless pipeline liquid level sensors of WS03A, 16.2#104K peristaltic pumps, 17. waste liquid evacuated tubes, the normally closed electromagnetism of 18.ZW-025
Valve, 19.EB-CIP intelligence color sensors, 20.1#Q22XD miniature electromagnetic valves, 21.OMROW microswitches, 22.2#Q22XD are micro-
Type magnetic valve, the contactless pipeline liquid level sensors of 23.3#WS03A, 24.TLM-0800 non-contact displacement transducers, 25.3#
104K peristaltic pumps, 26. external power supplys, 27. polytetrafluoroethylene (PTFE) capillary soft tubes, 28. electric wires, 29. auxiliary reclays, 30. supervise manually
Survey button, 31. automatic controls monitoring button, 32. stop buttons.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
A kind of fully automatic integral hardness online monitoring instruments being easily installed of the present invention, structure is as shown in figure 1, including anti-
Bottle 2 is answered, the middle part of reaction bulb 2 is disposed with the contactless pipeline liquid level sensors 15 of 2#WS03A and 1#WS03A is contactless
Pipeline liquid level sensor 14, the contactless pipeline liquid level sensors 15 of 2#WS03A are provided with reaction bulb 2 and 1#WS03A is non-connects
The diameter of the opening position of touch pipeline liquid level sensor 14 is less than the diameter at the both ends of reaction bulb 2, the contactless pipeline liquid of 2#WS03A
Level sensor 15 and the contactless pipeline liquid level sensors 14 of 1#WS03A are connected to SF0808RT-PLC state controllers 1, such as scheme
Shown in 2, external power supply 26 is connected with SF0808RT-PLC state controllers 1, blow vent 12 is provided with the bottle cap of reaction bulb 2
With stirring motor 5, stirring motor 5 is arranged at the bottle cap center position of reaction bulb 2, stirring motor 5 and SF0808RT-PLC shapes
State controller 1 connects, and the impeller 6 of stirring motor 5 extends the bottom of reaction bulb 2, meanwhile, also it is inserted with chromium on the bottle cap of reaction bulb 2
Black T droppers 3 and EDTA droppers 4, EDTA droppers 4 are connected by polytetrafluoroethylene (PTFE) capillary soft tube 27 with EDTA solution reservoirs 8, EDTA
3#104K peristaltic pumps 25,3#104K are additionally provided with polytetrafluoroethylene (PTFE) capillary soft tube 27 between dropper 4 and EDTA solution reservoirs 8
Peristaltic pump 25 is also connected with SF0808RT-PLC state controllers 1, and 2#Q22XD miniature electromagnetic valves 22 are provided with EDTA droppers 4,
2#Q22XD miniature electromagnetic valves 22 are also connected with SF0808RT-PLC state controllers 1, and 3#WS03A is additionally provided with EDTA droppers 4
Contactless pipeline liquid level sensor 23, the contactless pipeline liquid level sensors 23 of 3#WS03A and SF0808RT-PLC state controls
Device 1 processed connects, and the side of EDTA droppers 4 is additionally provided with TLM-0800 non-contact displacement transducers 24, and TLM-0800 is contactless
Displacement transducer 24 is connected with XMT-8000P intelligent digital display controls instrument 11, and it is miniature to be provided with 1#Q22XD on eriochrome black T dropper 3
Magnetic valve 20, OMROW microswitches 21 is installed with 1#Q22XD miniature electromagnetic valves 20, OMROW microswitches 21 are also connected to
SF0808RT-PLC state controllers 1, the bottle cap of reaction bulb 2 also pass through polytetrafluoro with sample bucket 9 and ammonia buffer tank 7 respectively
Ethene capillary soft tube 27 is connected, and the bottom of bottle portion of reaction bulb 2 is also connected with waste liquid evacuated tube 17, and waste liquid evacuated tube 17 extends waste liquid barrel
In 10, ZW-025 normally closed solenoid valves 18 are provided with waste liquid evacuated tube 17, EB- is additionally provided with beside the bottom outer wall of reaction bulb 2
CIP intelligence color sensor 19, ZW-025 normally closed solenoid valves 18, EB-CIP intelligence color sensor 19 are and SF0808RT-PLC
State controller 1 is connected, and 1#104K wrigglings are provided with the polytetrafluoroethylene (PTFE) capillary soft tube 27 between reaction bulb 2 and sample bucket 9
Pump 13,1#104K peristaltic pumps 13 are also connected with SF0808RT-PLC state controllers 1 simultaneously, reaction bulb 2 and ammonia buffer tank 7
Between polytetrafluoroethylene (PTFE) capillary soft tube 27 on be provided with 2#104K peristaltic pumps 16,2#104K peristaltic pumps 16 are also and SF0808RT-
PLC state controllers 1 are connected, and auxiliary reclay 29, SF0808RT-PLC shapes are provided with SF0808RT-PLC state controllers 1
Manual monitoring button 30, automatic control monitoring button 31, stop button 32 are additionally provided with state controller 1.
SF0808RT-PLC state controllers 1 receive each inductor signal and pass through internal processes and built-in auxiliary reclay 29
Control the order start and stop of water pump and magnetic valve, the contactless pipeline liquid level sensors 15 of 2#WS03A and 1# in reaction bulb 2
The contactless pipeline liquid level sensors 14 of WS03A transmit liquid level signal to SF0808RT-PLC state controllers 1 respectively, realize 1#
104K peristaltic pumps 13 and 2#104K peristaltic pumps 16 are taken out to the water sample in sample bucket 9 and ammonia buffer storage tank 7 with ammonia buffer
The quantitative control taken, EB-CIP intelligence color sensor 19 is used for the color change for sensing the inside drop reaction of reaction bulb 2, and leads to
Cross SF0808RT-PLC state controllers 1 and realize the control to the folding of 2#Q22XD miniature electromagnetic valves 22, on the bottle cap of reaction bulb 2
The blow vent 12 of setting to ensure air circulation, the contactless pipeline liquid level sensors 23 of 3#WS03A by transmission signal extremely
The start and stop of 3#104K peristaltic pumps 25 being connected with EDTA solution reservoirs 8 are controlled to ensure after SF0808RT-PLC state controllers 1
Pharmaceutical quantities in EDTA droppers 4 are enough, the TLM-0800 non-contact displacement transducers 24 on the side of EDTA droppers 4 by electric wire 28 with
XMT-8000P intelligent digital display controls instrument 11, which is connected, realizes the numerical monitor of Hardness results.
SF0808RT-PLC state controllers 1 provide power supply by external power supply 26, with the contactless pipeline liquid levels of 1#WS03A
The contactless pipeline level sensing 15 of sensor 14,2#, EB-CIP intelligence color sensor 19 and the contactless pipelines of 3#WS03A
Liquid level sensor 23, which is connected, receives inductor signal, then auxiliary reclay 29 built in passing through is realized to stirring motor 5,1#104K respectively
Peristaltic pump 13,2#104K peristaltic pumps 16, ZW-025 normally closed solenoid valves 18, OMROW microswitches 21,2#Q22XD miniature electromagnetic valves
The time series stereodata of 22 and 3#104K peristaltic pumps 25, complete whole full-automatic hardness on-line monitoring process, SF0808RT-PLC
State controller 1 goes back 3 operation buttons of peripheral hardware, including manual monitoring button 30, automatic control monitoring button 31 and stop button 32, real
Existing execute-in-place and the dual operational mode of sewage plant central control room operation.
A kind of course of work for the fully automatic integral hardness online monitoring instruments being easily installed of the present invention is as follows：
The artificial manual monitoring button 30 pressed on SF0808RT-PLC state controllers 1 or automatic control monitoring button 31, are opened
Open monitoring program, the first step starts 1#104K peristaltic pumps 13, and the water sample to be measured in sample bucket 9 is from polytetrafluoroethylene (PTFE) capillary soft tube 27
Start to inject into reaction bulb 2 in the presence of 104K peristaltic pumps 13, when liquid level reaches at 100mL scales in reaction bulb 2, Gu
The contactless pipeline liquid level sensors 14 of 1#WS03A due to the position transmit liquid level to SF0808RT-PLC state controllers 1
Signal, SF0808RT-PLC state controllers 1 send stopping to 1#104K peristaltic pumps 13 by built-in auxiliary reclay 29 and referred to
Order, water sample extraction is completed, while the stirring motor 5 at the upper-center of reaction bulb 2 starts, and drives lower end impeller 6 to start to revolve
Turn stirring；Second step starts the 2#104K peristaltic pumps 16 of connection ammonia buffer storage tank 7, passes through the middle part 105mL scales of reaction bulb 2
The contactless pipeline liquid level sensors 15 of 2#WS03A at place carry out liquid level signal feedback control 2#104K peristaltic pumps 16 and stopped transport, complete
Into the extraction process of ammonia buffer；3rd step is controlled by SF0808RT-PLC state controllers 1 by OMROW microswitches 21
The 1#Q22XD miniature electromagnetic valves 20 of the lower end of eriochrome black T dropper 3 realize disposable valve folding, realize adding for 1mL eriochrome black Ts, the 4th
Step SF0808RT-PLC state controllers 1 send instruction unpack 2#Q22XD miniature electromagnetic valves 22, and the EDTA in EDTA droppers 4 is molten
Liquid starts to fall to be titrated to the mixed solution in reaction bulb 2, when solution colour is pure blue by red mutation, reaction bulb
EB-CIP intelligence color sensor 19 beside 2 bottom outer walls is transferred to SF0808RT-PLC state controllers 1 by chrominance signal is become,
And the contactless pipes of current control 2#WS03A are transmitted by built-in auxiliary reclay 29 by SF0808RT-PLC state controllers 1
Road liquid level sensor 15 closes valve, is finally recorded by TLM-0800 non-contact displacement transducers 24 molten in EDTA droppers 4
Liquid declines scale, and transmits the signal to XMT-8000P intelligent digital display controls instrument 11, passes through hardness calculation in the instrument
Formula by detect data show, complete whole hardness monitoring process.
After the solution in EDTA droppers 4 declines, the contactless pipeline liquid level sensors 23 of 3#WS03A of dropper upper end are logical
Cross after transmitting liquid level signal to SF0808RT-PLC state controllers 1 and start 3#104K peristaltic pumps 25 from EDTA solution reservoirs 8
Extraction solution fill EDTA droppers to 50mL locate, in case next time use.
After the completion of the monitoring of each hardness, SF0808RT-PLC state controllers 1 are opened by built-in auxiliary reclay 29
ZW-025 normally closed solenoid valves 18 in the bottom waste stream evacuated tube 17 of reaction bulb 2, waste liquid are drained into lower end waste liquid barrel 10, ZW-025
The time-delay closing of normally closed solenoid valve 18.
The fully automatic integral hardness online monitoring instruments being easily installed are by SF0808RT-PLC state controllers to institute
There is equipment to carry out time series stereodata, by the principle of induction of level sensor, displacement sensor and color reaction device, by hardness
The pure manually-operated procedure of detection is organically integrated into fully automatic integral on-line monitoring, without manual site's sampling simultaneously
Chemical examination, mitigate the working strength of laboratory personnel, while the apparatus structure is simply dexterous, is easily installed, and realizes and water process is showed
The real-time positioning on-line monitoring of the field appointing system unit production water hardness, is easy to staff to be adjusted in time to water quality operational factor
Control, compensate for the vacancy of sewage plant hardness number on-line monitoring, and effect is notable.
The present invention has carried out comprehensive integration to the medicine involved by hardness determination and instrument and equipment, soft suitable for single hard water
Change the real time on-line monitoring of processing system (such as Na-ion exchanger/potassium permanganate composites), be the stable operation of water treatment system
Convenient reliable hardness data guarantee is provided, while labor intensity (such as moment in the morning laboratory personnel of laboratory personnel can be mitigated
To the sampling Detection except hardness system), the operating efficiency for inspection of increasing water quality is time saving and energy saving, convenient and swift.
Claims (4)
1. a kind of fully automatic integral hardness online monitoring instruments being easily installed, it is characterised in that including reaction bulb (2), instead
Answer and the contactless pipeline liquid level sensors (15) of 2#WS03A and the contactless pipelines of 1#WS03A are disposed with the middle part of bottle (2)
Liquid level sensor (14), the contactless pipeline liquid level sensors (15) of 2#WS03A and the contactless pipeline level sensings of 1#WS03A
Device (14) is connected to SF0808RT-PLC state controllers (1), and SF0808RT-PLC state controllers are connected with external electricity on (1)
Source (26), blow vent (12) and stirring motor (5), stirring motor (5) and SF0808RT- are provided with the bottle cap of reaction bulb (2)
PLC state controllers (1) connect, and the impeller (6) of stirring motor (5) extends the bottom of reaction bulb (2), meanwhile, reaction bulb (2)
Also be inserted with eriochrome black T dropper (3) and EDTA droppers (4) on bottle cap, EDTA droppers (4) by polytetrafluoroethylene (PTFE) capillary soft tube (27) with
EDTA solution reservoirs (8) connect, and are provided with 2#Q22XD miniature electromagnetic valves (22) on the EDTA droppers (4), 2#Q22XD is miniature
Magnetic valve (22) is also connected with SF0808RT-PLC state controllers (1), is additionally provided with that 3#WS03A is non-to be connect on EDTA droppers (4)
Touch pipeline liquid level sensor (23), the contactless pipeline liquid level sensors (23) of 3#WS03A and SF0808RT-PLC state controls
Device (1) connection processed, EDTA droppers (4) side are additionally provided with TLM-0800 non-contact displacement transducers (24), and TLM-0800 is non-
Tangent displacement sensor (24) is connected with XMT-8000P intelligent digital display control instrument (11), on the eriochrome black T dropper (3)
1#Q22XD miniature electromagnetic valves (20) are provided with, OMROW microswitches (21) are installed with 1#Q22XD miniature electromagnetic valves (20),
OMROW microswitches (21) are also connected to SF0808RT-PLC state controllers (1), the EDTA droppers (4) and EDTA solution
3#104K peristaltic pumps (25), 3#104K peristaltic pumps are additionally provided with polytetrafluoroethylene (PTFE) capillary soft tube (27) between storage tank (8)
(25) also it is connected with SF0808RT-PLC state controllers (1), in being provided with the SF0808RT-PLC state controllers (1)
Between relay (29), manual monitoring button (30), automatic control monitoring button are additionally provided with SF0808RT-PLC state controllers (1)
(31), stop button (32), the bottle cap of the reaction bulb (2) also passes through with sample bucket (9) and ammonia buffer tank (7) respectively to be gathered
Tetrafluoroethene capillary soft tube (27) is connected, and the bottom of bottle portion of reaction bulb (2) is also connected with waste liquid evacuated tube (17), waste liquid evacuated tube
(17) extend in waste liquid barrel (10), ZW-025 normally closed solenoid valves (18), the reaction bulb (2) are provided with waste liquid evacuated tube (17)
Bottom outer wall beside be additionally provided with EB-CIP intelligence color sensor (19), the ZW-025 normally closed solenoid valves (18), EB-
CIP intelligence color sensor (19) is connected with SF0808RT-PLC state controllers (1).
2. a kind of fully automatic integral hardness online monitoring instruments being easily installed according to claim 1, its feature exist
In being provided with 1#104K peristaltic pumps on the polytetrafluoroethylene (PTFE) capillary soft tube (27) between the reaction bulb (2) and sample bucket (9)
(13), 1#104K peristaltic pumps (13) while also it is connected with SF0808RT-PLC state controllers (1), reaction bulb (2) and ammonia buffering
2#104K peristaltic pumps (16), 2#104K peristaltic pumps are provided with polytetrafluoroethylene (PTFE) capillary soft tube (27) between NaOH solution tank NaOH (7)
(16) also it is connected with SF0808RT-PLC state controllers (1).
3. a kind of fully automatic integral hardness online monitoring instruments being easily installed according to claim 1, its feature exist
In the reaction bulb (2) is interior to be provided with the contactless pipeline liquid level sensors (15) of 2#WS03A and the contactless pipes of 1#WS03A
The diameter of the opening position of road liquid level sensor (14) is less than the diameter at reaction bulb (2) both ends.
4. a kind of fully automatic integral hardness online monitoring instruments being easily installed according to claim 1, its feature exist
In the stirring motor (5) is arranged at the bottle cap center position of reaction bulb (2).
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| CN201510386138.4A CN105044098B (en) | 2015-06-30 | 2015-06-30 | A kind of fully automatic integral hardness online monitoring instruments being easily installed |
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| CN201510386138.4A CN105044098B (en) | 2015-06-30 | 2015-06-30 | A kind of fully automatic integral hardness online monitoring instruments being easily installed |
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| CN107478856A (en) * | 2017-09-21 | 2017-12-15 | 山西天元润泽环保工程设备有限公司 | A kind of real-time online hardness monitor controller and on-line monitoring method |
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| CN2682412Y (en) * | 2004-02-18 | 2005-03-02 | 上海工业锅炉研究所 | Water hardness monitoring instrument |
| JP4120606B2 (en) * | 2004-03-30 | 2008-07-16 | 三浦工業株式会社 | Reagent for hardness measurement |
| JP5045333B2 (en) * | 2007-09-21 | 2012-10-10 | 東亜ディーケーケー株式会社 | Titration device |
| CN102749324A (en) * | 2011-04-21 | 2012-10-24 | 吴庆晖 | Water hardness rapid detection reagent, and reagent bottle, test tube as well as method applicable to it |
| CN204287051U (en) * | 2014-12-26 | 2015-04-22 | 山西天元润泽环保工程设备有限公司 | Full-automatic water quality on-line monitoring device |
| CN204718962U (en) * | 2015-06-30 | 2015-10-21 | 西安理工大学 | Be convenient to the fully automatic integral hardness on-Line Monitor Device of installing |
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