CN108362897A - A kind of high temperature washes away by force neutralizer pH on-line measurement device and methods - Google Patents
A kind of high temperature washes away by force neutralizer pH on-line measurement device and methods Download PDFInfo
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- CN108362897A CN108362897A CN201810108776.3A CN201810108776A CN108362897A CN 108362897 A CN108362897 A CN 108362897A CN 201810108776 A CN201810108776 A CN 201810108776A CN 108362897 A CN108362897 A CN 108362897A
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- meter
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- neutralizer
- protective case
- sampler barrel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/0092—Scheduling
Abstract
The present invention provides a kind of high temperature to wash away neutralizer pH on-line measurement devices by force, including：Measure Pneumatic extension protective case, the cleaning control device of sampler barrel, pH meter, fixed pH meter；It measures sampler barrel and is equipped with water inlet, water outlet, instrument connection, cut-off hole, sewage draining exit；PH meter is fixedly installed on the push rod of Pneumatic extension protective case；Pneumatic extension protective case is set on instrument connection, and pneumatic protective case is equipped with wash water water inlet, wash water water outlet with sampler barrel detachable connection, pneumatic protective case is measured；Wash water water inlet connects clear water by water pipe, and wash water water inlet is equipped with wash water solenoid valve, and wash water water outlet connects trench by water pipe；Cleaning control device includes DCS control systems, and DCS control systems are equipped with master relay, cleaning relay.The present invention washes away by force high temperature neutralizer and realizes on-line measurement, and simple in structure, automatic cleaning, easy to operate, reduction blocks, the on-line testing time is long, stable, measurement result is accurate, is provided conveniently for Environment Protection and Drainage of Pulled Water.
Description
Technical field
The present invention relates to a kind of high temperature to wash away neutralizer pH on-line measurement device and methods by force.
Background technology
During ammonia-soda process soda manufacture, a large amount of dreg liquid need to be discharged and (often produce 1t soda ash and about generate the useless of 10m3
Slag liquid), if dealing with improperly, serious environmental pollution can be caused.Therefore dreg liquid need to be sent into neutralizing tower, it is (i.e. dense with kiln gas
The CO2 gases that degree is 37.5%) current contacting generation neutralization reaction, so that dreg liquid is neutralized.Dreg liquid after neutralization is (in i.e.
And liquid) after labyrinth mixing channel, the mixing of settling tank and sedimentation are separated by solid-liquid separation, clarified solution overflow enters clear waste liquid barrel, through into one
(i.e. clarified solution pH value 6~9) discharge up to standard after step processing.
To realize qualified discharge, the pH value of control labyrinth mixing channel outlet neutralizer is heavy to closing in the range of 6~9
It wants.In neutralization operation, the pH value of neutralizer is controlled generally by the kiln gas amount adjusted into neutralizing tower.What is controlled is good,
Kiln gas dosage can be saved to greatest extent, to achieve the purpose that energy saving, consumption reduction, environmental protection.How is the working efficiency of the process, relationship
To soda ash manufacture cost height and the three wastes can qualified discharge, directly influence the benefit and development prospect of entire company.
Therefore, can the pH value of on-line measurement neutralizer be the key that accurately to realize qualified discharge.Neutralizer is in itself
It is the mixed liquor for belonging to high temperature (being 67 DEG C~72 DEG C or so when normal) and washing away by force.Existing measurement method mainly has following two
Kind：
1. being sent to central laboratory's laboratory pH meter by artificial timing pH test paper, portable pH meter or sampling to measure
Its pH value.
2. continuously measuring its pH value using online pH meter.For the mixed liquor that this high temperature of neutralizer washes away by force, adopt more
It is measured with the pH meter of external import.
There are many drawbacks for above-mentioned measurement method：
1st kind of method belongs to intermittent measurement, operates response lag, to wait until that analysis result out can just adjust；Its
Secondary is the accuracy it cannot be guaranteed that measurement result：The precision that test paper measures is relatively low, portable type measuring and Analytical Laboratory Results by
Sampling liquid is affected.Therefore this kind of measurement method is limited to the directive function of technological operation, cannot improve the automation of production
It is horizontal.
2nd kind of method category on-line continuous measures, and the accuracy of measurement result is can guarantee within certain time limit, is given birth to improving
The automatization level of production has certain facilitation.But this method is mainly manifested in there is also many deficiencies：
(1) it measures sampling method and is suitable only for production liquid (such as desalted water, the production that low temperature, impurity are few, scouring intensity is weak
Waste water etc.), the strong flush liquid of the high temperature as neutralizer is not suitable for, it is such as serious using necessarily will appear sampling and measuring device
The case where blocking, cannot be satisfied the requirement of long period continuous and steady operation.
(2) it can not ensure the requirement of pH meter automatic washing function long period continuous and steady operation.Due to the electrification of pH meter
Characteristic is learned, the sensor (electrode) installed in the reaction vessel must be able to periodically be taken out from sample media to be safeguarded
(including being cleaned with ejected wash water).But component (such as gas and water solenoid valve, control line in existing pH meter automatic washing system
Road plate and control chip etc.) imported equipments and parts are all made of, there is the expensive, defect of the supply of material not in time, seriously affect pH meter
Continuous and steady operation.
(3) it can not ensure the requirement of the long period continuous and steady operation of pH compound glass electrodes.Due to pH measuring electrodes
The activity service life does not exceed 2 weeks generally, is used continuously more than 2 weeks, electrode performance drastically will decline or even scrap.So electrode
Often using that must be regenerated after one section of period, so that its activity is restored to factory-said value and can reuse.The use of existing use is dilute
More than ten seconds ways of hydrochloric acid solution cleaning electrode are ineffective.Layer of scale on electrode can not completely remove, and lead to electrode regeneration
Using effect afterwards is poor, and the requirement that pH value measures all is not achieved in repdocutbility and accuracy.
(4) it can not ensure the unobstructed of pH meter cylinder draining.In the operational process of pH meter, timing clear water to pH electrodes
It is cleaned, the wash water after cleaning is discharged from the discharge outlet of cylinder.According to the method that producer provides, in the wash water water outlet of cylinder
It installs gas source connector additional and connects the stainless steel tube (or connection flexible pipe) of φ 8, the wash water after cleaning electrode is introduced into trench.By one
The trial operation of section time finds poor effect：Stainless steel tube (or hose) will block after using 2~3 days, and extremely difficult clear
Reason, the normal wash for affecting pH meter electrode is safeguarded, totally unfavorable to the continuous operation of online pH meter.
Therefore, a kind of pH value how is provided accurately to measure, and can the high temperature of long period continuous and steady operation wash away neutralization by force
Liquid pH on-line measurement devices become industry urgent problem.
Invention content
In view of the shortcomings of the prior art, the purpose of the present invention is ensure the accuracy of neutralizer pH value on-line measurement and long week
Phase continuous and steady operation plays technique productions positive directive function, realizes qualified discharge.
To achieve the goals above, the present invention provides a kind of high temperature to wash away neutralizer pH on-line measurement devices by force, is used for
On-line measurement purifies the pH value of discharge neutralizer in the mixing channel of labyrinth comprising：Measure the gas of sampler barrel, pH meter, fixed pH meter
Dynamic telescopic protective cover, cleaning control device；
It measures sampler barrel and is equipped with water inlet, water outlet, instrument connection, cut-off hole, sewage draining exit；Measure the water inlet of sampler barrel
It is connect with purification labyrinth mixing channel by water pipe, the water outlet for measuring sampler barrel connects trench by water pipe, and cut-off hole is equipped with
Shut-off valve measures sampler barrel and is set to ground；
PH meter is fixedly installed on the push rod of Pneumatic extension protective case；
Pneumatic extension protective case is set on instrument connection, pneumatic protective case and measurement sampler barrel detachable connection, pneumatically
Protective case is equipped with wash water water inlet, wash water water outlet；Wash water water inlet connects clear water by water pipe, and wash water water inlet is equipped with
Wash water solenoid valve, wash water water outlet connect trench by water pipe；
Cleaning control device includes DCS control systems, and DCS control systems are equipped with master relay, cleaning relay.
The present invention is tested by the connection measurement sampler barrel on purification labyrinth mixing channel by being arranged on measuring sampler barrel
For pH meter sampling and measuring, that slows down measurement neutralizer washes away dynamics, while ending and being provided with shut-off valve on hole, can close out in hole
The mouth of a river so that the neutralizer measured in sampler barrel is discharged from cut-off hole, convenient for observing and monitoring whether water inlet blocks, reduces
Block the influence measured pH value.Extension is realized to the state of pH meter by the way that Pneumatic extension protective case is arranged on measuring sampler barrel
And back operation, and wash water import and washing water outlet are set on Pneumatic extension protective case, cleaned convenient for being realized to pH meter electrode
Operation；To realize automatic cleaning, be provided with cleaning control device, the present invention using DCS output switch parameter and delay function into
Row control, and controlled by master relay and cleaning relay, avoid the generation of failure.
High temperature provided by the invention washes away by force neutralizer pH on-line measurements device and realizes online survey to the neutralizer washed away by force
Amount, simple in structure, automatic cleaning, it is easy to operate, reduce block, the on-line testing time it is long, it is stable, measurement result is accurate,
The pH ranges for ensuring the neutralizer of discharge provide conveniently for Environment Protection and Drainage of Pulled Water.
According to another specific implementation mode of the present invention, measurement sampler barrel is column, and instrument connection, which is set to, measures sampler barrel
Middle part, water outlet are set to the lower end for measuring sampler barrel, and sewage outfalls setting is in the bottom for measuring sampler barrel；Water inlet front end goes out
Mouth of a river rear end, sewage draining exit lower end are equipped with technique ball valve.
According to another specific implementation mode of the present invention, cut-off hole is set to the top for measuring sampler barrel, shut-off valve and cut-off
Hole is connected by water pipe.
According to another specific implementation mode of the present invention, high temperature washes away by force neutralizer pH on-line measurement devices and further comprises washing
Water drainage arrangement, wash water drainage arrangement connect the washing water outlet of Pneumatic extension sheath, and wash water drainage arrangement includes transparent plastic leakage
Bucket and pvc pipe.
According to another specific implementation mode of the present invention, Pneumatic extension protective case connects compressed air by tracheae, pneumatically stretches
The tracheae that contracting protective case connects compressed air is equipped with compressed air electromagnetic valve.
According to another specific implementation mode of the present invention, it further includes control that high temperature, which washes away by force neutralizer pH on-line measurement devices,
Case, control cabinet are equipped with control panel, and control panel is equipped with DCS state of a controls lamp, run switch, Manual-cleaning switch, dimension
Shield switch.
According to another specific implementation mode of the present invention, DCS control systems further comprise assembler language module, assembler language
Module is CFC language；Assembler language module includes timing module, period control module, dump block.
According to another specific implementation mode of the present invention, pH meter is realized extension by the push rod effect of pneumatic protective case and is retreated
Action, when pH meter protracts, the electrode of pH meter is stretched into measure in sampler barrel and be measured to sampling liquid, when the electrode of pH meter retreats,
The electrode of pH meter backs to the position of the wash water water inlet on pneumatic protective case.
On the other hand, the present invention also provides the measurement method that high temperature washes away by force neutralizer pH on-line measurement devices, packets
Include following steps：
S1：Sampler barrel will be measured and connect labyrinth mixing channel, pH meter is fixed on Pneumatic extension protective case, Pneumatic extension protection
Set pushes pH meter extension to measuring in sampler barrel, opens the technique ball valve of water outlet, adjusts adaptable uninterrupted；
S2：The technique ball valve for opening water inlet after the operation of completion step S1 again, adjusts corresponding uninterrupted, starts
Test measures the pH value of neutralizer in sampler barrel；
S3：After the time for reaching setting, pH meter is cleaned automatically, after cleaning control device controls Pneumatic extension protective case
Move back, pH meter backs to wash water entrance, and controls wash water solenoid valves simultaneously, clear water from wash water water inlet flow into pH meter into
Row cleaning.
S4：After step S3 has cleaned the time of setting, cleaning control device controls Pneumatic extension protective case and protracts, before pH meter
It stretches into and measures in sampler barrel, and control the power-off of wash water solenoid valve simultaneously, pH meter continues to measure.
According to another specific implementation mode of the present invention, measurement method further comprises to making pH meter after using for a period of time
The step of being safeguarded：
S50：PH meter is disassembled from Pneumatic extension protective case, is put into the dilute hydrochloric acid solution of 0.07-0.12mol/l
Interior immersion 3-6 hours is taken out the pH meter out of dilute hydrochloric acid solution and is rinsed with clear water；
S51：The pH meter flushed in the step S50 is immersed in the KCl solution of 2-4mol/l and activates 4-9
It；
S52：The pH meter that step S51 activation is completed is taken out, the property indices of pH meter electrode are tested, it is qualified
Afterwards pH meter is continued to come into operation.
Compared with prior art, the present invention has following advantageous effect：
1, the present invention measures sampler barrel by setting, and setting instrument connection subtracts for pH meter sampling and measuring on measuring sampler barrel
That has delayed measurement neutralizer washes away dynamics, realizes on-line measurement to the neutralizer washed away by force convenient for pH meter, is not easy to plug, measurement side
Just, measurement result is accurate, it is ensured that the pH ranges of the neutralizer of discharge provide conveniently for Environment Protection and Drainage of Pulled Water.
2, the present invention is measuring setting cut-off hole and shut-off valve above sampler barrel so that after closing water outlet and sewage draining exit,
The neutralizer measured in sampler barrel is discharged from cut-off hole, convenient for observing and monitoring whether water inlet blocks, reduces blocking to pH
It is worth the influence measured,
3, the present invention realizes extension and back operation by the way that Pneumatic extension protective case is arranged to the state of pH meter, and pneumatic
Wash water import and washing water outlet are set on telescopic protective cover, convenient for pH meter electrode realization cleaning operation；And provided with cleaning control
Device processed, to carrying out periodically automatic cleaning during pH meter on-line measurement, to safeguarding that the long-time on-line measurement of pH meter is provided with
The guarantee of effect.
4, the present invention carries out the pH meter that the electrode activity service life after a period of use declines by the method for regeneration treatment
It safeguards, reduces the dosage demand of pH meter, reduce testing cost, and maintenance cost is low, easy to maintain, effectively ensures survey
The quality of pH meter on probation, has stronger promotional value.
5, the present invention is of low cost, draining is unobstructed, maintenance is small by the way that wash water drainage arrangement is arranged, and is further waste liquid
It is convenient that discharge provides, and improves the working efficiency of device.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is that the high temperature of embodiment 1 washes away by force the structural schematic diagram of neutralizer pH on-line measurement devices；
Fig. 2 is that the high temperature of embodiment 1 washes away by force another structural schematic diagram of neutralizer pH on-line measurement devices；
Fig. 3 is that the high temperature of embodiment 1 washes away by force the operation panel schematic diagram of neutralizer pH on-line measurement devices；
Fig. 4 is that the high temperature of embodiment 1 washes away by force the operation panel circuit schematic diagram of neutralizer pH on-line measurement devices；
Fig. 5 is that the high temperature of embodiment 1 washes away by force the DO output circuit schematic diagrames of neutralizer pH on-line measurement devices.
Specific implementation mode
Embodiment 1
It present embodiments provides a kind of high temperature and washes away neutralizer pH on-line measurement devices by force and be used for as shown in Figs. 1-5
Measure the pH value of discharge neutralizer in purification labyrinth mixing channel 1 comprising：It measures sampler barrel 2, pH meter 31, fix pH meter 31
Pneumatic extension protective case 3, cleaning control device.
Sampler barrel 2 is measured equipped with water inlet 21, water outlet 22, instrument connection (not shown), cut-off hole (in figure not show
Go out), sewage draining exit 24；The water inlet 21 for measuring sampler barrel 2 is connect by water pipe with purification labyrinth mixing channel 1, and sampler barrel 2 is measured
Water outlet 22 connects trench by water pipe, and cut-off hole (not shown) is equipped with shut-off valve 23, measures sampler barrel 2 and is set to ground
Face.
PH meter 31 is fixedly installed on the push rod of Pneumatic extension protective case 3.
Pneumatic extension protective case 3 is set in instrument connection (not shown), and pneumatic protective case 3 can with measurement sampler barrel 2
It is detachably connected with, pneumatic protective case 3 is equipped with wash water water inlet 21, wash water water outlet 22；Wash water water inlet 21 is connected by water pipe
Clear water is connect, wash water water inlet 21 is equipped with wash water solenoid valve, and wash water water outlet 22 connects trench by water pipe.
Cleaning control device includes DCS control systems, and DCS control systems are equipped with master relay, cleaning relay.
The present embodiment is by the connection measurement sampler barrel 2 on purification labyrinth mixing channel 1, by being set on measuring sampler barrel 2
Instrument connection (not shown) is set for 31 sampling and measuring of pH meter, slow down measurement neutralizer washes away dynamics, while ending hole (figure
In be not shown) on be provided with shut-off valve 23, water outlet 22 can be closed so that measure sampler barrel 2 in neutralizer from cut-off hole
(not shown) is discharged, and convenient for observing and monitoring whether water inlet 21 blocks, reduces the influence for blocking and measuring pH value.It is logical
It crosses the setting Pneumatic extension protective case 3 on measuring sampler barrel 2 and extension and back operation is realized to the state of pH meter 31, and pneumatic
Wash water import 32 and washing water outlet 33 are set on telescopic protective cover 3, convenient for 31 electrode of pH meter realization cleaning operation；To realize certainly
Dynamic cleaning, is provided with cleaning control device, the present invention is controlled using the output switch parameter and delay function of DCS, and is passed through
Master relay and cleaning relay are controlled, and the generation of failure is avoided.
The neutralizer flowed out from labyrinth mixing trench bottom is set to through pipeline inflow in the measurement sampler barrel 2 on ground, and is led to
The pipeline for crossing the water outlet 22 for measuring sampler barrel 2 is discharged into trench.Instrument maintenance personnel can carry out day on ground to pH meter 31
Normal maintenance, and it is observed that sampling neutralizer flow regime, and to measure sampler barrel 2 in neutralizer carry out pH value survey
Examination.
Measurement sampler barrel 2 is column, and the outflow of neutralizer, instrument connection (not shown) is convenient for be set to measurement sampler barrel
2 middle part removably connects Pneumatic extension sheath in instrument connection (not shown).It is fixed on Pneumatic extension protective case
With the promotion of push rod, preceding stretch into measures in sampler barrel 2 pH meter 31 on 3, real-time to measuring the neutralizer progress in sampler barrel 2
On-line measurement.
Water outlet 22 is set to the lower end for measuring sampler barrel 2, and water outlet 22 connects ground by water pipe.Neutralizer is arranged
Go out, mitigates the velocity of discharge of 22 neutralizer of water outlet, further, 24 lower end of sewage draining exit, 21 front end of water inlet and water outlet 22
Rear end is equipped with technique ball valve 4.Instrument maintenance personnel both can by close technique ball valve 4 cut off neutralizer so as to remove instrument into
Row is safeguarded, the flow velocity of neutralizer can also be controlled by the aperture of regulation ball valve, it is ensured that neutralizer is in measuring cylinder in stream
State that is fast appropriate and fully flowing, can mitigate the erosive wear to pH glass electrodes, guarantee measures accurate neutralization in this way
Liquid pH value.In order to further maintain easily, it is arranged 2 between the water inlet 21 for measuring sampler barrel 2 through mixing trench bottom in song
A technique ball valve 4.
Cut-off hole (not shown) is set to the top for measuring sampler barrel 2, and shut-off valve 23 (does not show with cut-off hole in figure
Go out) it is connected by water pipe.Shut-off valve 23 is connect with cut-off hole (not shown) by water pipe.By closing on water outlet 22
Technique ball valve 4, opening measure the shut-off valve 23 at 2 top of sampler barrel so that the neutralizer measured in sampler barrel 2 (is schemed from cut-off hole
In be not shown) discharge, convenient for observing and monitoring whether water inlet 21 blocks, maintain easily.
High temperature washes away by force neutralizer pH on-line measurement devices and further comprises wash water drainage arrangement, the connection of wash water drainage arrangement
The washing water outlet 33 of Pneumatic extension sheath, wash water drainage arrangement include transparent plastic funnel 34 and pvc pipe.Pass through wash water import 32
It flows into clear water into Pneumatic extension sheath to clean Pneumatic extension sheath and pH meter 31, the wash water after cleaning is gone out by wash water
Mouth 33 is discharged, and pH meter 31 is regularly safeguarded and cleaned, and further prevents blocking.Washing water outlet 33 passes through
Transparent plastic funnel 34 connects underground with pvc pipe, and the case where wash water is discharged can be observed by transparent plastic funnel 34, is prevented
Washing water outlet 33 blocks.In use, removing all connectors first at cylinder washing water outlet 33, blocks and export to prevent neutralizer；
Secondly wash water is introduced by trench using the method for 34 adjunction pvc pipe of transparent plastic funnel at washing water outlet 33.Monitoring is facilitated to wash
Whether water out 33, which blocks and be easy to dredge in time, is safeguarded.Transparent plastic funnel 34 is made of common beverage bottle, at low cost
It is honest and clean.According to service condition, the stopping state of drainage system is very slight, every some months time to plastic funnel 34 and pvc pipe
Cleaning is primary.To drain unobstructed, maintenance by wash water import 32, the design of washing water outlet 33 and wash water drainage arrangement
It is small.
Pneumatic extension protective case 3 connects compressed air by tracheae, and Pneumatic extension protective case 3 connects the tracheae of compressed air
It is equipped with compressed air electromagnetic valve.
It further includes control cabinet that high temperature, which washes away by force neutralizer pH on-line measurement devices, and control cabinet is equipped with control panel, control
Panel is equipped with DCS state of a control lamps L, run switch K1, Manual-cleaning switch K3, maintenance switch K2.
DCS control systems further comprise that assembler language module, assembler language module are CFC language；Assembler language module
Including timing module, period control module, dump block.Timing module distinguishes timing to time of measuring and scavenging period.Period
Control module is used to that the time cycle of cleaning to be set and be controlled, in addition, by period control module, it can be to once cleaning
Process carries out multi-step cleaning, improves cleaning efficiency.After the completion of dump block is for once cleaning, timing is reset, and simplifies timing
Operation improves control efficiency.By timing module, the setting of period control module, dump block, convenient for according to requiring to pH meter
31 carry out periodically automatic cleaning, safeguard pH value test operation steady in a long-term.
PH meter 31 is realized extension and backward movement by the push rod effect of pneumatic protective case 3, when pH meter 31 protracts, pH meter 31
Electrode stretch into measure in sampler barrel 2 sampling liquid measured, when the electrode of pH meter 31 retreats, the electrode of pH meter 31 backs to
The position of wash water water inlet 21 on pneumatic protective case 3, convenient for clear water to 31 electrode clean of pH meter.
Referring to Fig. 2 to Fig. 4, in use, first, pressing the run switch K1 on control cabinet control panel, relay J1 is logical
Electricity, control normally opened contact J1-2 are closed.At this point, pH meter 31 is in DCS state of a controls, the DCS state of a control lamps on control panel
L is bright, and DCS programs control the NC contact closures on DO output boards, and relay J2 is powered, and normally-closed contact J2-1 is disconnected, and compression is empty
Pneumoelectric magnet valve powers off, and controls the on-line measurement that the pH compound glass electrodes in cylinder put in sampler barrel inlet wire pH value, meanwhile, timing
Module carries out Clocked operation, and when the time reaching the cleaning frequency of cycle module setting, DCS programs control the NC on DO output boards
When contact disconnection, NO contact closures, compressed air electromagnetic valve is powered, and the pH compound glass electrodes in cylinder exit sampler barrel, together
When, wash water solenoid valves, clear water carries out the measurement end of 31 electrode of pH meter into purge chamber by wash water import 32 automatic clear
It washes.
When maintenance personnel needs to carry out daily maintenance to electrode, the maintenance switch K2 on control cabinet operation panel is pressed,
The power supply of block system relay J1 makes its contact J1-2 disconnect, and the DCS state of a control lamps L on operation panel goes out, at this point, cylinder will
It is not controlled by DCS, pH compound glass electrodes remain that the state for exiting sampler barrel, maintenance personnel can be to the compound of pH meter 31
Glass electrode is replaced, is dismounted, and can also press the Manual-cleaning switch K3 on control cabinet operation panel so that clear water stream
Enter, pH meter 31 is cleaned using manual mode.
On the other hand, the present embodiment additionally provides the measurement method that high temperature washes away by force neutralizer pH on-line measurement devices,
Include the following steps：
S1：Sampler barrel 2 will be measured and connect labyrinth mixing channel 1, pH meter 31 is fixed on Pneumatic extension protective case 3, pneumatically stretches
Contracting protective case 3 pushes the extension of pH meter 31 to measuring in sampler barrel 2, opens the technique ball valve 4 at water outlet 22, adjusts adaptable
Uninterrupted；
S2：The technique ball valve 4 at water inlet 21 is opened after the operation of completion step S1 again, adjusts corresponding uninterrupted,
Start the pH value that test measures neutralizer in sampler barrel 2；
S3：After the time for reaching setting, pH meter 31 is cleaned automatically, cleaning control device controls Pneumatic extension protective case 3
It retreats, pH meter 31 backs at wash water import 32, and controls wash water solenoid valves simultaneously, and clear water is flowed into from wash water water inlet 21
PH meter 31 is cleaned.
S4：After step S3 has cleaned the time of setting, cleaning control device controls Pneumatic extension protective case 3 and protracts, pH meter
It stretches into and is measured in sampler barrel 2 before 31, and control the power-off of wash water solenoid valve simultaneously, pH meter 31 continues to measure.
Above-mentioned measurement method further comprises the step of being safeguarded to the pH meter 31 for making after using for a period of time：
S50：PH meter 31 is disassembled from Pneumatic extension protective case 3, is put into leaching in the dilute hydrochloric acid solution of 0.1mol/l
Bubble 4 hours, the pH meter 31 is taken out out of dilute hydrochloric acid solution and is rinsed with clear water；
S51：The pH meter 31 flushed in the step S50 is immersed in the KCl solution of 3mol/l and is activated 6 days；
S52：The pH meter 31 that step S51 activation is completed is taken out, the property indices of 31 electrode of pH meter are tested,
PH meter 31 is continued to come into operation after qualification.
The present embodiment is by the method for regeneration treatment to making the pH meter 31 that the electrode activity service life declines after using for a period of time
It is safeguarded, 31 overlapping investment of pH meter of properties test index qualification after regeneration treatment is used, pH meter 31 is reduced
Dosage demand reduces testing cost, and the maintenance mode is at low cost, easy to maintain, effectively ensures test pH meter 31
Quality, have stronger promotional value.
High temperature provided in this embodiment washes away by force neutralizer pH on-line measurements device and is realized online to the neutralizer washed away by force
Measure, simple in structure, automatic cleaning, it is easy to operate, reduce block, the on-line testing time it is long, it is stable, measurement result is smart
Really, it is ensured that the pH ranges of the neutralizer of discharge provide conveniently for Environment Protection and Drainage of Pulled Water.
Although the present invention is disclosed above with preferred embodiment, it is not limited to the range that the present invention is implemented.Any
The those of ordinary skill in field improves in the invention scope for not departing from the present invention when can make a little, i.e., every according to this hair
Bright done same improvement, should be the scope of the present invention and is covered.
Claims (10)
1. a kind of high temperature washes away by force neutralizer pH on-line measurement devices, the high temperature washes away by force neutralizer pH on-line measurement devices use
In the pH value for measuring discharge neutralizer in purification labyrinth mixing channel, which is characterized in that it is online that the high temperature washes away by force neutralizer pH
Measuring device includes：Measure Pneumatic extension protective case, the cleaning control device of sampler barrel, pH meter, the fixed pH meter；
The measurement sampler barrel is equipped with water inlet, water outlet, instrument connection, cut-off hole, sewage draining exit；It is described measure sampler barrel into
The mouth of a river is connect by water pipe with purification labyrinth mixing channel, and the water outlet for measuring sampler barrel connects trench by water pipe,
The cut-off hole is equipped with shut-off valve, and the measurement sampler barrel is set to ground；
The pH meter is fixedly installed on the push rod of the Pneumatic extension protective case；
The Pneumatic extension protective case is set on the instrument connection, and the pneumatic protective case and the measurement sampler barrel are detachable
Formula connects, and the pneumatic protective case is equipped with wash water water inlet, wash water water outlet；The wash water water inlet is connected clear by water pipe
Water, the wash water water inlet are equipped with wash water solenoid valve, and the wash water water outlet connects trench by water pipe；
The cleaning control device includes DCS control systems, and the DCS control systems are equipped with master relay, cleaning relay.
2. high temperature as described in claim 1 washes away by force neutralizer pH on-line measurement devices, which is characterized in that the measurement sampling
Cylinder is column, and the instrument connection is set to the middle part for measuring sampler barrel, and the water outlet is set to the measurement sampler barrel
Lower end, the sewage outfalls setting in it is described measure sampler barrel bottom；The water inlet front end, the water outlet rear end, institute
It states sewage draining exit lower end and is equipped with technique ball valve.
3. high temperature as described in claim 1 washes away by force neutralizer pH on-line measurement devices, which is characterized in that the cut-off hole is set
It is placed in the top for measuring sampler barrel, the shut-off valve is connect with the cut-off hole by water pipe.
4. high temperature as described in claim 1 washes away by force neutralizer pH on-line measurement devices, which is characterized in that the high temperature rushes by force
Brush neutralizer pH on-line measurement devices further comprise that wash water drainage arrangement, the wash water drainage arrangement connect the Pneumatic extension
The washing water outlet of sheath, the wash water drainage arrangement include transparent plastic funnel and pvc pipe.
5. high temperature as described in claim 1 washes away by force neutralizer pH on-line measurement devices, which is characterized in that the Pneumatic extension
Protective case connects compressed air by tracheae, and the tracheae of the Pneumatic extension protective case connection compressed air is equipped with compressed air
Solenoid valve.
6. high temperature as described in claim 1 washes away by force neutralizer pH on-line measurement devices, which is characterized in that the high temperature rushes by force
Brush neutralizer pH on-line measurement devices further include control cabinet, and the control cabinet is equipped with control panel, is set on the control panel
There are DCS state of a controls lamp, run switch, Manual-cleaning switch, maintenance switch.
7. high temperature as described in claim 1 washes away by force neutralizer pH on-line measurement devices, which is characterized in that the DCS controls
System further comprises that assembler language module, the assembler language module are CFC language；The assembler language module includes timing
Module, period control module, dump block.
8. high temperature as described in claim 1 washes away by force neutralizer pH on-line measurement devices, which is characterized in that the pH meter by
Extension and backward movement are realized in the push rod effect of the pneumatic protective case, and when the pH meter protracts, the electrode of the pH meter stretches into
Sampling liquid is measured in the measurement sampler barrel, when the electrode of the pH meter retreats, the electrode of the pH meter backs to institute
State the position of the wash water water inlet on pneumatic protective case.
9. a kind of high temperature described in claim 1 washes away by force the measurement method of neutralizer pH on-line measurement devices, which is characterized in that
The measurement method includes the following steps：
S1：Sampler barrel will be measured and connect labyrinth mixing channel, pH meter is fixed on Pneumatic extension protective case, and Pneumatic extension protective case pushes away
Dynamic pH meter extension opens the technique ball valve of water outlet, adjusts adaptable uninterrupted to measuring in sampler barrel；
S2：The technique ball valve for completing to open after the operation of the step S1 water inlet again, adjusts corresponding uninterrupted, starts
Test measures the pH value of neutralizer in sampler barrel；
S3：After the time for reaching setting, pH meter is cleaned automatically, cleaning control device controls Pneumatic extension protective case and retreats, pH
Meter backs to wash water entrance, and controls wash water solenoid valves simultaneously, and clear water is flowed into from wash water water inlet and carried out clearly to pH meter
It washes.
S4：After the step S3 has cleaned the time of setting, cleaning control device controls Pneumatic extension protective case and protracts, before pH meter
It stretches into and measures in sampler barrel, and control the power-off of wash water solenoid valve simultaneously, pH meter continues to measure.
10. high temperature as claimed in claim 9 washes away by force neutralizer pH On-line Measuring Methods, which is characterized in that the measurement side
Method further comprises the step of being safeguarded to the pH meter for making after using for a period of time：
S50：PH meter is disassembled from Pneumatic extension protective case, is put into leaching in the dilute hydrochloric acid solution of 0.07-0.12mol/l
Bubble 3-6 hours, the pH meter is taken out out of dilute hydrochloric acid solution and is rinsed with clear water；
S51：The pH meter flushed in the step S50 is immersed in the KCl solution of 2-4mol/l and is activated 4-9 days；
S52：The pH meter that step S51 activation is completed is taken out, the property indices of the pH meter electrode are tested,
The pH meter is continued to come into operation after qualification.
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| CN201721895905 | 2017-12-28 | ||
| CN2017218959055 | 2017-12-28 |
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| CN201820187786.6U Active CN207923772U (en) | 2017-12-28 | 2018-02-01 | A kind of high temperature washes away by force neutralizer pH value and measures sampler |
| CN201810108776.3A Active CN108362897B (en) | 2017-12-28 | 2018-02-01 | Online measuring device and method for pH of high-temperature strong-scouring neutralization solution |
| CN201820187790.2U Active CN207923773U (en) | 2017-12-28 | 2018-02-01 | A kind of automatic flushing device for pH meter on-line measurement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111830095A (en) * | 2020-06-24 | 2020-10-27 | 宁波大地化工环保有限公司 | Method and device for testing pH of high-temperature high-salinity liquid |
| CN115672219A (en) * | 2022-11-07 | 2023-02-03 | 中建三局第三建设工程有限责任公司 | Method and system for automatically controlling pH value of reaction kettle |
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| JPH08323352A (en) * | 1995-05-29 | 1996-12-10 | Sanyo Electric Co Ltd | Ionized water generator |
| CN1939608A (en) * | 2005-09-27 | 2007-04-04 | 力晶半导体股份有限公司 | Cleaning system and its operation |
| CN103693775A (en) * | 2013-11-27 | 2014-04-02 | 广东南方碱业股份有限公司 | Method for reducing ammonia nitrogen content of distilled clear waste liquid discharged in ammonia alkali process |
| CN206772890U (en) * | 2017-04-24 | 2017-12-19 | 中国联合工程公司 | A kind of outer pH meter on-bne repair system of tower |
| CN211122650U (en) * | 2019-11-04 | 2020-07-28 | 沈阳中科韦尔腐蚀控制技术有限公司 | Open type pH value on-line measurement and automatic cleaning device |
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2018
- 2018-02-01 CN CN201820187786.6U patent/CN207923772U/en active Active
- 2018-02-01 CN CN201810108776.3A patent/CN108362897B/en active Active
- 2018-02-01 CN CN201820187790.2U patent/CN207923773U/en active Active
Patent Citations (5)
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| JPH08323352A (en) * | 1995-05-29 | 1996-12-10 | Sanyo Electric Co Ltd | Ionized water generator |
| CN1939608A (en) * | 2005-09-27 | 2007-04-04 | 力晶半导体股份有限公司 | Cleaning system and its operation |
| CN103693775A (en) * | 2013-11-27 | 2014-04-02 | 广东南方碱业股份有限公司 | Method for reducing ammonia nitrogen content of distilled clear waste liquid discharged in ammonia alkali process |
| CN206772890U (en) * | 2017-04-24 | 2017-12-19 | 中国联合工程公司 | A kind of outer pH meter on-bne repair system of tower |
| CN211122650U (en) * | 2019-11-04 | 2020-07-28 | 沈阳中科韦尔腐蚀控制技术有限公司 | Open type pH value on-line measurement and automatic cleaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111830095A (en) * | 2020-06-24 | 2020-10-27 | 宁波大地化工环保有限公司 | Method and device for testing pH of high-temperature high-salinity liquid |
| CN115672219A (en) * | 2022-11-07 | 2023-02-03 | 中建三局第三建设工程有限责任公司 | Method and system for automatically controlling pH value of reaction kettle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207923773U (en) | 2018-09-28 |
| CN108362897B (en) | 2021-08-17 |
| CN207923772U (en) | 2018-09-28 |
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