CN105510425B - A kind of coulomb of Sulfur inspector - Google Patents
A kind of coulomb of Sulfur inspector Download PDFInfo
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- CN105510425B CN105510425B CN201610064943.XA CN201610064943A CN105510425B CN 105510425 B CN105510425 B CN 105510425B CN 201610064943 A CN201610064943 A CN 201610064943A CN 105510425 B CN105510425 B CN 105510425B
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- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/42—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte
- G01N27/44—Measuring deposition or liberation of materials from an electrolyte; Coulometry, i.e. measuring coulomb-equivalent of material in an electrolyte using electrolysis to generate a reagent, e.g. for titration
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Abstract
The invention discloses a kind of coulomb of Sulfur inspectors, including pyrolytic unit, gas storage unit, electrolysis cells and subsequent processing units；The pyrolytic unit is connect by pipeline with the storage unit gas storage unit, and the gas storage unit is connect by pipeline with the electrolysis cells, and the electrolysis cells are connect by pipeline with the subsequent processing units.The present invention increases gas storage unit on original coulomb of Sulfur inspector, and the gas generated to combustion decomposition in high temperature furnace first stores, and makes the SO in gas2Uniformly lead to electrolysis cells again after dilution, with the electrolytic process in gentle electrolysis cells, avoids due to SO2Discharge the difficult problem of uneven caused electrolytic titration control.It realizes efficient, complete electrolytic titration, had not only ensured the repeatability of sample testing result, but also be conducive to widen testing range range, improve the accuracy of experiment.
Description
Technical field
The present invention relates to the measurement of sulfur content in combustible more particularly to a kind of coulomb of Sulfur inspectors.
Background technology
Sulphur is most important harmful components in the combustible species such as coal, oil, and after combustible burns, sulphur is aoxidized with sulphur
Object such as SO2And SO3Form be discharged into air, cause the pollution of air and environment.Therefore for sulfur content in combustible
Detection is the focus of attention such as energy user, environmental monitoring person.Existing Determination Method for Sulfur Content mainly has Chinese mugwort scholar block-regulations, red
External spectrum method and coulometric titration.Wherein Chinese mugwort scholar's block-regulations is chemical reagent analysis method, and complicated for operation, labor intensity is big；It is infrared
The instrument cost of spectroscopic methodology is high；And from the point of view of the comprehensive analysis such as instrument cost, operation complexity, instrument meter characteristic, coulomb
Sulfur content in titration measuring substance is optimal mode.Currently, 95% or more domestic coal sulphur content determination uses library
Logical sequence titration is measured.
Coulometric titration generally use coulomb Sulfur inspector measures sulfur content.Referring to Fig. 1, it, which is existing coulomb, surveys sulphur
The structural schematic diagram of device.Existing coulomb Sulfur inspector include sequentially connected pyrolytic unit 1 ', electrolysis cells 2 ' and
Subsequent processing units 3 '.The pyrolytic unit 1 ' includes sequentially connected purification pipe 11 ', the first aspiration pump 12 ', first-class
Gauge 13 ' and high temperature furnace 14 '；The electrolysis cells 2 ' are an electrolytic cell；The subsequent processing units 3 ' include sequentially connected
Drying tube 31 ', second flowmeter 32 ' and the second aspiration pump 33 '.After air is by purifying the purification of pipe 11 ', by the first aspiration pump
12 ' suction are sent in first flowmeter 13 ', and the gas flow for being sent into high temperature furnace 14 ' is indicated by first flowmeter 13 '；It is being catalyzed
Under the action of agent, sample to be tested, which reacts in 1150 DEG C or so of high temperature furnace 14 ' with the oxygen in air, generates SO2With it is a small amount of
SO3After gas, it is transported in electrolytic cell 2 '；A small amount of SO3In the electrolytic cell 2 ' and H2O reactions generate H2SO4, and a large amount of SO2
With H2O reactions generate H2SO3, H2SO3Again by the I in electrolyte2(Br2) it is oxidized to H2SO4, lead to the I in electrolyte2(Br2) subtract
It is few, I-(Br-) increase, to destroy the ionization equilibrium of electrolyte so that the indicator electrode current potential in electrolytic cell 2 ' increases, in turn
So that the electrolysis electrode of electrolytic cell 2 ' is started electrolysis, and according to the current potential of indicator electrode height, controls corresponding Faradaic current
With the time, make the I generated on electrolysis electrode2(Br2) and H2SO3The amount of consumption is equal, to make electrolyte come back to equilibrium-like
State；For gas after electrolysis by being flowed in second flowmeter 32 ' after the drying of drying tube 31 ', the instruction of second flowmeter 32 ' is logical
To the gas flow of the second aspiration pump 33 ', finally extracted out by the second aspiration pump 33 '.By calculating the I generated to electrolysis2(Br2)
The integral of the electricity consumed calculates the content that can be obtained sulphur in sample to be tested further according to Faraday's laws of electrolysis.
In existing coulomb Sulfur inspector, the gas after burning is directly pumped into electrolytic cell and is electrolysed, is not considered
SO in the gas being pumped at this time2Concentration, and since the process of sample combustion is different, SO2Release be also it is different, often
The feedback of secondary electrolysis also can be inconsistent, and therefore, it is difficult to ensure the repeatability of test.In addition, when test sulfur content is relatively high
When combustible, in combustion, combustible burns rapidly, suddenly generates a large amount of SO2Gas, electrolyte cannot the short time
The interior excessive SO of dissolving2Gas can lead to part SO2Gas is not oxidized just to be taken away by aspiration pump, is caused in the sample measured
The content of sulphur is relatively low；Simultaneously as the limitation of the Faradaic current upper limit, electrolytic curve cannot reflect the electrolysis after high-sulfur release in real time
Process also results in electrolytic process lag.Further, since the SO generated in combustion process2It uprushed before this, and was again later to drop suddenly
, electrolysis system can be caused to be difficult to react in time, generated electrolysis.The above reason causes coulomb mostly domestic at present to survey sulphur dress
Sulfur content test scope is set to be difficult to really break through 10%.
Invention content
The invention reside in, with deficiency, provide one kind the shortcomings that overcoming the prior art and avoiding electrolysis lag, can guarantee that experiment is tied
The repeatability of fruit can widen the high coulomb Sulfur inspector of test scope, accuracy.
The present invention is achieved by the following technical solutions：A kind of coulomb of Sulfur inspector, including pyrolytic unit, gas storage
Unit, electrolysis cells and subsequent processing units；The pyrolytic unit is connect by pipeline with the gas storage unit, the storage
Gas unit is connect by pipeline with the electrolysis cells, and the electrolysis cells are connect by pipeline with the subsequent processing units.
Compared with the prior art, the present invention increases gas storage unit on original coulomb of Sulfur inspector, to high temperature furnace internal combustion
It burns the gas for decomposing and generating first to be stored, makes the SO in gas2Uniformly lead to electrolysis cells again after dilution, to be gently electrolysed list
Electrolytic process in member is avoided due to the SO in gas2The problem of electrolysis lag caused by uneven concentration, electrolysis overshoot.It is real
Now efficient, complete electrolytic titration, had not only ensured the repeatability of sample testing result, but also was conducive to widen testing range range, carried
The accuracy of height experiment.
Further, the gas storage unit includes caisson, the first ventilation branch and constant-current stabilizer；The caisson
Inlet end by it is described first ventilate branch connect with the pyrolytic unit, the outlet side of the caisson with it is described
Constant-current stabilizer connects, and the gas in the caisson is transported to the constant-current stabilizer；The constant-current stabilizer passes through control
Gas stabilization is transported to the electrolysis cells by gas flow size.
Further, the caisson includes air accumulator, intake valve, air outlet valve, piston and piston driver；It is described
The inlet end in the air accumulator is arranged in intake valve；The air outlet valve is arranged in the outlet side of the caisson；The piston
It is arranged in air accumulator, the piston driver driving piston is moved up and down in air accumulator with extracting high-temperature resolving cell point
The gas of solution delivers gas to the constant-current stabilizer.
Further, the constant-current stabilizer includes current stabilization cavity and wedge block；The wedge block is arranged in the current stabilization chamber
In vivo, and at the gas outlet of the current stabilization cavity, and it can be swung with air-flow and block part gas outlet.
Further, the storage unit further includes the second ventilation branch and regulating valve；The second ventilation branch circuit parallel connection
In the caisson and constant-current stabilizer both ends, the gas that the pyrolytic unit combustion decomposition generates is logical by described second
Gas branch is transported to the electrolysis cells；The regulating valve setting is in the second ventilation branch.
Further, further include a microprocessor, the microprocessor is connect with the electrolysis cells；The microprocessor
According to the difference of the voltage of indicator electrode in the electrolytic cell and balanced voltage whether in values, or sends signal and close
Close the regulating valve and air outlet valve, the intake valve for opening the caisson；Or send signal open the caisson into
Air valve and the regulating valve, the air outlet valve for closing the caisson；Or send signal-off and close the regulating valve, open institute
State the intake valve and air outlet valve of caisson.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing coulomb Sulfur inspector；
Fig. 2 is the structural schematic diagram of coulomb Sulfur inspector of the present invention；
Fig. 3 is the structural schematic diagram of storage unit 2 in embodiment 1；
Fig. 4 is the structural schematic diagram of constant-current stabilizer 23 in embodiment 1；
Fig. 5 is the structural schematic diagram of storage unit in embodiment 2.
Specific implementation mode
Embodiment 1
Referring to Fig. 2, it is the structural schematic diagram of coulomb Sulfur inspector of the present invention.A kind of coulomb of Sulfur inspector, including height
Warm resolving cell 1, gas storage unit 2, electrolysis cells 3 and subsequent processing units 4.The pyrolytic unit 1 passes through pipeline and institute
The connection of gas storage unit 2 is stated, the gas storage unit 2 is connect by pipeline with the electrolysis cells 3, and the electrolysis cells 3 pass through pipe
Road is connect with the subsequent processing units 4.The pyrolytic unit 1 is transported to the gas storage unit by the gas generated is decomposed
2；The gas storage unit 2 is transported to the electrolysis cells 3 after gas is stored and diluted；The electrolysis cells 3 are to gas part
After absorption, then residual gas is transported to the subsequent processing units 4.
The pyrolytic unit 1 includes purification pipe 11, the first aspiration pump 12, first flowmeter 13 and high temperature furnace 14.Institute
It states purification pipe 11 to connect with first aspiration pump 12, first aspiration pump 12 passes through the first flowmeter 13 and the height
Warm stove 14 connects.After air is purified by the purification pipe 11, is extracted out by first aspiration pump 12 and be transported to described first
In flowmeter 13, the gas sulfur amount of the high temperature furnace 14 is sent by the instruction of the first flowmeter 13；In the effect of catalyst
Under, sample to be tested, which reacts in 1150 DEG C or so of high temperature furnace 14 with the oxygen in air, is decomposed into SO2With a small amount of SO3Gas
Afterwards, it is transported in the storage unit 2.
Referring to Fig. 3, it is the structural schematic diagram of storage unit 2 in embodiment 1.The storage unit 2 is filled including gas storage
Set the 21, first ventilation branch 22 and constant-current stabilizer 23.The inlet end of the caisson 21 passes through the first ventilation branch 22
It is connect with the pyrolytic unit 1, the outlet side of the caisson 21 is connect with the constant-current stabilizer 23, and by the storage
Gas in device of air 21 is transported to the constant-current stabilizer 23；The constant-current stabilizer 23 is by controlling gas flow size by gas
Stabilization is transported to the electrolysis cells 3, and gas is enable gently to participate in cell reaction in the electrolysis cells 3.
The caisson 21 includes air accumulator 211, intake valve 212, air outlet valve 213, piston 214 and piston driver
(not shown).The inlet end in the air accumulator 211 is arranged in the intake valve 212；The air outlet valve 213 is arranged in the storage
The outlet side of gas tank 211；The piston 214 is arranged in air accumulator 211, and the piston driver driving piston 214 is storing up
The gas decomposed with extracting high-temperature stove 1 is moved up and down in gas tank 211 or delivers gas to the constant-current stabilizer 23.
Referring to Fig. 4, it is the structural schematic diagram of constant-current stabilizer 23 in embodiment 1.The constant-current stabilizer 23 includes current stabilization
Cavity 231 and wedge block 232.The air inlet 2311 of the current stabilization cavity 231 is connect with the outlet side of the air accumulator 211, institute
The gas outlet 2312 for stating current stabilization cavity 231 is connect with the electrolysis cells 3.The wedge block 232 is arranged in the current stabilization cavity
In 231 and at the gas outlet 2312 of the current stabilization cavity 231, and part gas outlet 2312 can be swung and blocked with air-flow,
To adjust 2312 size of gas outlet, and then adjusting gas flow size, to control the gas flow into electrolysis cells 3.
The electrolysis cells 3 are an electrolytic cell.There are a pair of of platinum indicator electrode and a pair of of platinum to be electrolysed in the electrolytic cell
Electrode, and equipped with the electrolyte that main component is KI and KBr.Current potential between the indicator electrode of the electrolytic cell reflects electrolyte
Middle I-(Br-) ion concentration variation, pass through the Faradaic current and electrolysis time on the control of Electric potentials electrolysis electrode.From constant-current stabilizer
The 23 a small amount of SO being passed through3It is reacted with water directly in the electrolytic cell and generates H2SO4；And a large amount of SO2Generation is reacted with water
H2SO3, H2SO3Again by the I in electrolyte2(Br2) it is oxidized to H2SO4, lead to the I in electrolyte2(Br2) reduce, I-(Br-) increase
It is more, to destroy the ionization equilibrium of electrolyte so that the indicator electrode current potential in electrolytic cell 3 increases, so that electrolytic cell 3 is certainly
It is dynamic to start electrolysis, and according to the current potential of indicator electrode height, control corresponding Faradaic current and time, make on electrolysis electrode
The I of generation2(Br2) and H2SO3The amount of consumption is equal, to make electrolyte come back to equilibrium state.
The subsequent processing units 4 include drying tube 41, second flowmeter 42 and the second aspiration pump 43；The drying tube 41
It is connect with second aspiration pump 43 by the second flowmeter 42.Residual gas after electrolytic cell absorption passes through institute
After stating the drying of drying tube 41, it is transported in the second flowmeter 42；Second pumping is led in the instruction of the second flowmeter 42
The gas flow of air pump 43 is finally extracted out by second aspiration pump 43.
In use, opening the intake valve 212 of the caisson, the gas after the decomposition of the high temperature furnace 14 passes through described
First ventilation branch 22 is first input into the air accumulator 211；The piston driver drives the piston 214 in the storage
From bottom to top uniform motion in gas tank 211 gradually decomposes the high temperature furnace 14 gas extraction that generates to the air accumulator 211
It is interior.Wait for that sample completely burned decomposes the gas generated and is all collected into the air accumulator 211, and in the air accumulator 211
After dilution, the intake valve 212 of the caisson is closed, opens the air outlet valve 213 of the caisson 21, starts piston driving
Device extrudes simultaneously by the from top to bottom uniform motion of the piston 214, and then by the gas after dilution out of the air accumulator 211
It is transported in the constant-current stabilizer 23.Wedge block 232 in the constant-current stabilizer 23 is in the current stabilization cavity 231 according to air-flow
The size of amount and swing, to block the part gas outlet 2312 of the current stabilization cavity 231, and then adjust the big of gas outlet 2312
It is small, to adjust throughput size so that the gas after dilution is stabilized to be transported in electrolytic cell and fully, uniformly put down
Slow cell reaction.
Compared with the prior art, the present invention increases caisson on original coulomb of Sulfur inspector, to high temperature furnace internal combustion
It burns the gas for decomposing and generating first to be stored, makes the SO in gas2Lead to electrolysis cells after dilution again, in gentle electrolysis cells
Cell reaction process, avoid due to SO2The problems such as discharging uneven caused electrolysis not in time, being electrolysed overshoot.Further,
Pass through constant-current stabilizer, it is ensured that the gas stabilization after dilution is input in electrolytic cell, cell reaction process is made to obtain further
It mitigates, realizes efficient, complete electrolytic titration, not only ensured the repeatability of sample testing result, but also be conducive to widen testing range
Range improves the accuracy of experiment.
Embodiment 2
The structure of coulomb Sulfur inspector in the present embodiment is roughly the same with the structure of embodiment 1, differs only in：Institute
State the difference of gas storage unit.Referring to Fig. 5, it is the structural schematic diagram of storage unit in embodiment 2.The gas storage unit includes
Caisson 21 ', the first ventilation branch 22 ', constant-current stabilizer 23 ', the second ventilation branch 24 ' and regulating valve 25 '.The high temperature furnace
It is connect with the caisson 21 ' by the first ventilation branch 22 ', the caisson 21 ' passes through the constant-current stabilizer
23 ' connect with the electrolysis cells；Meanwhile the high temperature furnace also passes through the second ventilation branch 24 ' and the electrolysis cells
Connection, the setting of regulating valve 25 ' is in the second ventilation branch 24 '.Sample to be tested decomposes the gas of generation in high temperature furnace
After a body part is transported to the storage of caisson 21 ' by the first ventilation branch 22 ', stablized by constant-current stabilizer 23 '
It is transported in the electrolysis cells, another part gas is directly communicated to the electrolysis list by the second ventilation branch 24 '
Member.
The caisson 21 ' includes that air accumulator 211 ', intake valve 212 ', air outlet valve 213 ', piston 214 ' and piston drive
Dynamic device (not shown).Inlet end of the setting of intake valve 212 ' in the air accumulator 211 '；The air outlet valve 213 ' is set
It sets in the outlet side of the caisson 21 '；The setting of piston 214 ' is in air accumulator 211 ', the driving of the piston 214 ' dress
Driving piston 214 ' is set to move up and down the gas decomposed with extracting high-temperature stove in air accumulator 211 ' or deliver gas to described
Constant-current stabilizer 23 '.The constant-current stabilizer 23 ' includes current stabilization cavity and wedge block (not shown).The air inlet of the current stabilization cavity
Mouth is connect with the outlet side of the air accumulator 211 ', and the gas outlet of the current stabilization cavity is connect with the electrolysis cells.The wedge
Shape block is arranged in the current stabilization cavity and at the gas outlet of the current stabilization cavity, and can be swung with air-flow and block part
Gas outlet, to adjust gas outlet size, and then adjusting gas flow size, to control the gas flow into electrolysis cells.
The second ventilation branch 24 ' is arranged in parallel in the caisson 21 ' and 23 ' both ends of constant-current stabilizer, the height
The gas that warm stove combustion decomposition generates is delivered directly to by the second ventilation branch 24 ' in the electrolysis cells；The tune
The setting of valve 25 ' is saved in the second ventilation branch 24 '.According to the voltage of indicator electrode in the electrolytic cell and balanced voltage
Whether difference is in values, or closes the intake valve 212 ' of the caisson, opens the regulating valve 25 '；Or it opens
It opens the intake valve 212 ' of the caisson, open the regulating valve 25 '；Or it closes the regulating valve 25 ', open the gas storage
The intake valve 212 ' of device.In the present invention, can also according to the Faradaic current indicated in the electrolysis cells or other can react
Electrolytic cell is electrolysed situation, to control the intake valve 212 ' of the caisson and the aperture of regulating valve 25 '.
Further include one micro- for the aperture of the intake valve 212 ' and regulating valve 25 ' of the more intelligent control caisson
Processor (not shown), the microprocessor are connect with the electrolysis cells.It is preset with Faradaic current on the microprocessor
Value, when the microprocessor peaks according to cell reaction, the difference of the voltage and balanced voltage that are indicated in the electrolytic cell
Whether the Faradaic current value determined in Faradaic current values prejudges the sulfur content in sample, and then described in controlling
The intake valve 212 ' of caisson and the aperture of regulating valve 25 '.
Specifically, being separately turned on the intake valve 212 ' and regulating valve 25 ' of the caisson by the microprocessor, make
The gas part that the high temperature furnace generates is transported to storage in the air accumulator 211 ' by the first ventilation branch 22 ',
Another part is transported to the electrolytic cell Inner electrolysis by the second ventilation branch 24 ' and reacts.When the microprocessor is examined
When measuring the voltage peak indicated in the electrolytic cell (0~150) mV higher than balanced voltage, defines sulfur content and be in low-sulfur area
Section, test sample is low-sulfur sample at this time；When the microprocessor detects the voltage peak ratio indicated in the electrolytic cell
It when balanced voltage height (150~250) mV, defines sulfur content and is in middle sulphur section, test sample is middle sulphur sample at this time；When described
When microprocessor detects the voltage peak indicated in the electrolytic cell (250~350) mV higher than balanced voltage, defines sulphur and contain
Amount is in high-sulfur section, and test sample is high-sulfur samples at this time.
When it is low-sulfur sample to prejudge sample, the microprocessor sends the intake valve of caisson described in signal-off
212 ', stop the movement of the piston driver of the caisson, it is whole that the residual gas generated is decomposed in the high temperature furnace
It is delivered directly in the electrolytic cell by the second ventilation branch 24 '.Wait for transmission in the second ventilation branch 24 '
After gas whole cell reaction is complete；The air outlet valve 213 ' for opening the caisson again, by what is stored in the air accumulator 211 '
Gas is discharged into the electrolytic cell.
When it is middle sulphur sample to prejudge sample, the gas generated in the high temperature furnace is divided into two-way conveying, passes through institute all the way
It states in the storage to the air accumulator 211 ' of the first ventilation branch 22 ', is in addition transported to all the way by the second ventilation branch 24 '
It is electrolysed in the electrolytic cell.At this point, 214 ' driving device of the piston drives the from bottom to top uniform motion of piston 214 ', it should
The speed that piston 214 ' moves is the half of 214 ' movement velocity of piston in embodiment 1, and then portion gas is pumped into air accumulator
Storage in 211 ' when bulk gas being avoided to pour in electrolytic cell, not in time due to cell reaction, causes experiment inaccurate.Wait for electricity
After gas in Xie Chi has all been electrolysed, restarts 214 ' driving device of piston driving piston 214 ' and from top to bottom at the uniform velocity transport
It is dynamic, stored gas in the air accumulator 211 ' is discharged into the electrolytic cell, the gas generated in high temperature furnace is enable
Abundant cell reaction.
When it is high-sulfur samples to prejudge sample, the regulating valve 25 ' is closed.The remaining gas generated in high temperature furnace is whole
It stores in the air accumulator 211 '.At this point, the piston driver drives the from bottom to top uniform motion of piston 214 ', gas
Body is pumped into the air accumulator 211 ', after gas to be decomposed is all pumped into the air accumulator 211 ' and dilutes, then is discharged into
It is electrolysed in the electrolytic cell.
Compared with the prior art, the present invention is according in sample the case where sulfur content, by control the caisson into
The aperture of air valve and the regulating valve enters SO in electrolytic cell to adjust2Content so that cell reaction can be carried out gently,
Electrolytic efficiency is improved, ensure that the repeatability of sample testing result；It is applicable to the test that sulfur content is higher than 10%, is widened
Testing range range improves the accuracy of experiment.
The invention is not limited in the above embodiments, if the various changes or deformation to the present invention do not depart from the present invention
Spirit and scope, if these changes and deformation belong within the scope of the claim and equivalent technologies of the present invention, then this hair
It is bright to be also intended to comprising these changes and deformation.
Claims (6)
1. a kind of coulomb of Sulfur inspector, it is characterised in that：Including pyrolytic unit, gas storage unit, electrolysis cells and follow-up place
Manage unit；The pyrolytic unit is connect by pipeline with the gas storage unit, the gas storage unit by pipeline with it is described
Electrolysis cells connect, and the electrolysis cells are connect by pipeline with the subsequent processing units；
The gas storage unit includes caisson, the first ventilation branch and constant-current stabilizer；The inlet end of the caisson passes through
The first ventilation branch is connect with the pyrolytic unit, and the outlet side of the caisson connects with the constant-current stabilizer
It connects, and the gas in the caisson is transported to the constant-current stabilizer；The constant-current stabilizer is big by controlling gas flow
It is small that gas stabilization is transported to the electrolysis cells；
The caisson includes air accumulator, intake valve, air outlet valve, piston and piston driver；The intake valve setting exists
The inlet end of the air accumulator；The air outlet valve is arranged in the outlet side of the caisson；The piston is arranged in air accumulator
Interior, the piston driver driving piston is moved up and down the gas decomposed with extracting high-temperature resolving cell in air accumulator or will
Gas is transported to the constant-current stabilizer；
The constant-current stabilizer includes current stabilization cavity and wedge block；The wedge block is arranged in the current stabilization cavity, and close to institute
At the gas outlet for stating current stabilization cavity, and it can be swung with air-flow and block part gas outlet.
2. according to claim 1 coulomb of Sulfur inspector, it is characterised in that：The gas storage unit further includes the second ventilation branch
Road and regulating valve；The second ventilation branch circuit parallel connection is in the caisson and constant-current stabilizer both ends, the pyrolytic unit
The gas that combustion decomposition generates is transported to the electrolysis cells by the second ventilation branch；The regulating valve is arranged described
In second ventilation branch.
3. according to claim 2 coulomb of Sulfur inspector, it is characterised in that：Further include a microprocessor, the microprocessor
Device is connect with the electrolysis cells；The microprocessor is according to the voltage of indicator electrode in the electrolytic cell and the difference of balanced voltage
Whether value is in values, or sends caisson regulating valve and air outlet valve described in signal-off, opens the intake valve；
Or send intake valve and the regulating valve, the closing air outlet valve that signal opens the caisson；Or send signal-off
The regulating valve of the caisson opens the intake valve and air outlet valve.
4. according to claim 3 coulomb of Sulfur inspector, it is characterised in that：The pyrolytic unit include purification pipe,
First aspiration pump, first flowmeter and high temperature furnace；The purification pipe is connect with first aspiration pump, and first aspiration pump is logical
The first flowmeter is crossed to connect with the high temperature furnace.
5. according to claim 4 coulomb of Sulfur inspector, it is characterised in that：The subsequent processing units include drying tube,
Second flowmeter and the second aspiration pump；The drying tube is connect by the second flowmeter with second aspiration pump；Through institute
After the residual gas after electrolytic cell absorbs is stated by drying tube drying, it is transported in the second flowmeter；Described second
Flowmeter indicates the gas flow for leading to second aspiration pump, is finally evacuated pumped by described second.
6. according to claim 5 coulomb of Sulfur inspector, it is characterised in that：The electrolysis cells are an electrolytic cell.
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|---|---|---|---|---|
| CN1563933A (en) * | 2004-04-15 | 2005-01-12 | 长沙三德实业有限公司 | Capacity setting, loop circulating gas analysis and appts. for constant sulfur instrument |
| CN1584580A (en) * | 2004-06-02 | 2005-02-23 | 长沙三德实业有限公司 | Capacity fixed and loop closed cyclic gas analyzing method and device for surlfur determiner for circular titration |
| CN2704841Y (en) * | 2004-06-18 | 2005-06-15 | 长沙三德实业有限公司 | Volume fixing and closed loop cyclic gas analyzer of sulfur determiner |
| CN1865973A (en) * | 2006-05-25 | 2006-11-22 | 朱先德 | Sulphur meter with air flow stabilizing device |
| CN2898823Y (en) * | 2006-05-26 | 2007-05-09 | 朱先德 | Sulfur measuring equipment with flow stabilizer |
| CN205484187U (en) * | 2016-01-29 | 2016-08-17 | 湖南省计量检测研究院 | Sulphur device is surveyed to coulomb |
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|---|---|
| CN105510425A (en) | 2016-04-20 |
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