CN107219086A - It is a kind of that the test platform and its method of testing for evaluating organic waste gas treatment device performance are automatically controlled based on gas circuit - Google Patents
It is a kind of that the test platform and its method of testing for evaluating organic waste gas treatment device performance are automatically controlled based on gas circuit Download PDFInfo
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- 239000010815 organic waste Substances 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 238000011156 evaluation Methods 0.000 claims abstract description 20
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 19
- 238000011160 research Methods 0.000 claims abstract description 8
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000002912 waste gas Substances 0.000 claims description 21
- 238000004458 analytical method Methods 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 13
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- 238000002156 mixing Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- 238000004088 simulation Methods 0.000 claims description 8
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 229920002545 silicone oil Polymers 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 4
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 5
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
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- 239000000243 solution Substances 0.000 description 4
- 238000006065 biodegradation reaction Methods 0.000 description 3
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- QUBBAXISAHIDNM-UHFFFAOYSA-N ethyldimethylbenzene Natural products CCC1=CC=CC(C)=C1C QUBBAXISAHIDNM-UHFFFAOYSA-N 0.000 description 3
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- 239000003054 catalyst Substances 0.000 description 2
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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of test platform and its method of testing that evaluation organic waste gas treatment device performance is automatically controlled based on gas circuit, including gas circuit generating unit, gas circuit control unit, research and application unit, auxiliary unit and fluid path control unit.This evaluation system collection gas precise control of flew, multidirectional gas circuit Automated condtrol, temperature, time control and gas analysis are detected on one, with control function is more, precision high, security performance is excellent, easy to operate, the investment low advantage of operating cost, solve that traditional air-channel system control accuracy is limited, the low problem of safe class.Generally speaking, test platform provided by the present invention has control accuracy high, the low advantage of financial cost, can meet organic waste gas treatment device test, evaluate requirement, meets the related request of domestic main industries VOCs controls；Test system can be carried out in larger VOCs concentration ranges and evaluated, and disclosure satisfy that the performance test requirement of polytype organic waste gas treatment device.
Description
Technical field
It is specially that one kind automatically controls evaluation organic exhaust gas based on gas circuit the present invention relates to environmental pollution improvement's apparatus field
The test platform and its method of testing of processing unit performance.
Background technology
According to statistics, economic loss of the China every year caused by atmosphere pollution accounts for GDP 3%-7%.Except having caused abundant attention
Dust, SO2、NOxPollution is outer, and what industrial production discharged in recent years contains volatile organic contaminant（Volatile Organic
Compounds, VOCs）The environmental pollution that waste gas is caused is increasingly serious, according to 2005-2010 China industrial source VOCs discharge capacity numbers
According to statistics, China's industrial source VOCs is generally increased with 5%-20% speed, and industrial source VOCs discharge capacitys reach 1500- within 2010
20000000 tons.The increase year by year of VOCs total amounts becomes the important participation thing and predecessor of regional atmosphere pollution.
Defined according to WHO, VOCs refers to that vapour pressure is more than 70.91Pa at room temperature, and aerial boiling point is at 260 DEG C
Following organic liquid and solid.This kind of compound has higher reactivity, and they play non-in atmospheric chemistry process
Often important effect, can participate in atmospheric photochemical reaction and in turn result in the pollution such as photochemical fog, typically have stronger thorn
Swash property and toxicity.The features such as this kind of waste gas has discharge capacity big, complicated component, difficult, strong toxicity.Its source mainly has：Stone
Volatilized in oiling work, the industry production technique such as coating decoration, printing industry, electronic manufacture, surface anticorrosion, shoemaking, communications and transportation
Organic solvent.And can also deposit difference in detail between the waste gas that above-mentioned every profession and trade is produced.
In terms of new and effective atmosphere pollution end-o f-pipe -control purification techniques research and development, suction is carried out extensively both at home and abroad
The skills such as attached/absorption, catalysis oxidation, heat storage type combustion, biodegradation, plasma-catalytic, reinforcing absorption and multinomial recovery/purification
The research of art.In developed countries such as Japan, Europe, North Americas（Area）Strengthening, transforming the same of the methods such as traditional absorption and sorption
When, the correlation technique such as catalysis oxidation, biodegradation has turned into the mainstream technology that VOCs exhaust emissions are purified in recent years.China's science
Worker also begins to concern research and development single to catalysis oxidation and biodegradation etc. or coupling purification technology, and passes through process
Reinforcing improves the conventional arts such as absorption and sorption, attempts the integral level of the industry of lifting China waste gas recovery/purification.
Therefore for different organic industry waste gas, and the characteristics of above-mentioned organic industry waste gas, how to evaluate existing
Technology, is that different organic industry waste gas match suitable treatment technology and reactor, even for the excellent of existing multiple technologies
The integrated new organic industry exhaust gas treatment technology of point exploitation, device, realize that tail gas qualified discharge turns into the one of waste gas pollution control and treatment
Key in individual important research direction and currently practical engineer applied.
At present, the organic waste gas treatment device of practical application first need to be in laboratory by simulating the organic waste of certain industry
Gas investigates its VOCs degradation efficiency, detects and improves through analysis, and industry is realized so as to industrialize amplification after system performance evaluation
Change.At this stage, laboratory has the following disadvantages for the performance evaluation of organic waste gas treatment device：（1）Platform operations are automated
Degree is low, for mixing gas source and flow amount size accurately control to there is error big, the problems such as complex operation；（2）Organic exhaust gas has
Toxicity, is carried out larger to testing crew and laboratory safety hidden danger during analysis operation；（3）The exhaust emission factor is monitored and data point
Analysis can not Real-time Feedback.
Therefore, develop and design that a kind of automaticity is high, accurately control gas source and flow amount size, it is safe, easy to operate
Evaluation organic waste gas treatment device performance test platform and its method of testing have important practical significance.
The content of the invention
To overcome above-mentioned deficiency of the prior art, automatically controlled the invention provides one kind based on gas circuit, safety, operation
The test platform and its method of testing of easy evaluation organic waste gas treatment device performance.
The object of the present invention is achieved like this：
A kind of test platform that evaluation organic waste gas treatment device performance is automatically controlled based on gas circuit, including gas generating unit,
The gas circuit control unit being connected with gas generating unit, the research and application unit being connected with gas circuit control unit is detected with analysis
The auxiliary unit and fluid path cycling element of unit connection；
Described gas generating unit includes external gas source device（3）And nitrogen gas generator（1）；Described external gas source device
（3）By being provided with air source control valve（2）Pipeline and gas circuit control unit in gas circuit switch board（10）It is connected；External gas source
Device（3）For providing the gas needed for test platform, mainly including nitrogen gas generator, gas bomb etc., it is possible to provide oxygen
（O2）, nitrogen（N2）, carbon dioxide（CO2）, argon gas（Ar）With organic source of the gas such as dimethylbenzene, ethyl acetate；Air Valve Control is switched
（2）Control being turned on and off for Gas generation line；
Described gas circuit control unit includes gas circuit switch board（10）, described gas circuit switch board（10）Include gas mass flow
Gauge（4）, described gas mass flow gauge（4）Pass through pipeline and gas mixer chamber（5）Connection, gas mixer chamber（5）With by
PLC（8）The magnetic valve assembled unit of control（9）Connection；
Described gas mass flow gauge（4）Including mass flowmenter and data display instrument, the gas of input platform is accurately controlled
Body flow, gas mass flow is monitored using capillary heat transfer temperature difference calorimetry principle；Mass flowmenter can connect 5 simultaneously not
Same air delivering pipeline, detects O respectively2、N2、CO2、Five kinds of gas with various flows of Ar and organic gas, control gas flow to distinguish
For：O2For 100 mL/min；N2For 2.00 L/min；CO2For 200 mL/min；Ar is 1.00 L/min；Organic gas is 500
mL/min；Data display instrument includes LED display and gas flow adjustment knob.Gas flow adjusting knob adjustable gas stream
Measure size；Data display instrument is simultaneously accurate to show 5 road gas with various uninterrupteds；Data display instrument using circuit directly with PC ends
Connection, by data logging software control, records different time points gas flow data in real time；Described gas mixer chamber（5）By
Stainless steel is made, and is sufficiently mixed gas with various；It is described by PLC（8）The magnetic valve assembled unit of control（9）, use
Four magnetic valve combinations and four groups of air circuit breaker control gas flows, four groups of air circuit breakers and PLC（8）It is connected, by adjusting PLC
（8）Output signal acts on air circuit breaker and then controls the operation of magnetic valve, the mixing source of the gas emptying of the first solenoid valve control；Second
Solenoid valve control mixing source of the gas enters gas chromatographicanalyzer（13）；3rd solenoid valve control control mixed gas enters reactor
Ⅰ（16）；4th solenoid valve control mixed gas enters reactor II（20）；Described magnetic valve assembled unit（9）In electromagnetism
Valve coupled reaction device II（20）Pipeline on be provided with the first ball valve（14）；Described reactor I（16）Connect magnetic valve combination
Unit（9）In magnetic valve pipeline on be provided with the second ball valve（15）.
Described analysis detection unit includes gas chromatograph（13）With data record analysis terminal PC（12）；Described gas
Analysis of hplc instrument（13）Including：Six-way injection valve, splitter, temperature control system, detector and data record analysis platform；Work as mould
Intend the reacted device I of waste gas（16）With reactor II（20）Pass through PLC after discharge（8）The magnetic valve of control（9）Through separating post separation,
The real-time recording detection data of detector, to evaluate organic waste gas treatment device effect；
Described auxiliary unit is included by PLC（8）The digit time controller of control（11）, intelligent digital temperature controller（17）, pressure
Sensor drops（6）And alarm（7）；Part in above-mentioned accessory system passes through circuit and PLC（8）It is connected, phase is recorded in real time
Pass data simultaneously can be in data analysis terminal PC（12）Display；
Described digit time controller（11）With PLC（8）It is connected, gas piping is flowed in control platform；Described intelligent number
Word temperature controller（17）For controlling water bath（19）Temperature is implemented to be incubated in setting range to organic exhaust gas reactor to be evaluated；
Described pressure drop sensor（6）It is placed in organic waste gas treatment device reactor II to be evaluated（20）Above and below tail gas pipeline
Interface and reactor I（16）Top, for monitoring organic waste gas treatment device reactor II to be evaluated（20）In total resistance
Power and reactor I（16）In drag overall；The alarm（7）Pass through circuit and PLC（8）It is connected, to pressure drop in pipeline and temperature
Degree passes through intelligent digital temperature controller beyond the situation of setting range（17）And pressure drop sensor（6）Feed back to PLC（8）And then export
Act on alarm（7）, alarm（7）And alarm；
Described fluid path cycling element includes being located at water bath（19）In reservoir（21）And and reservoir（21）Connection
Minisize dc water pump（18）, minisize dc water pump（18）By being provided with spinner flowmeter（22）Pipeline and reactor II（20）
Connection；Described minisize dc water pump（18）H-Max 3.6-7.2 m, the m of maximum stream flow 83/h；Described spinner flowmeter
（22）Range of flow is 0-100 L/h；
A kind of described method of testing that the test platform for evaluating organic waste gas treatment device performance is automatically controlled based on gas circuit, bag
Include following steps：
A. according to reactor I to be evaluated（16）Or reactor II（20）Demand, dismantles and installs different external connection compressed air source unit（3）,
Variety classes and concentration target pollutant are configured, the simulation industrial waste gas containing different VOCs classes materials is produced so as to simulate；
B. in reservoir（21）Middle utilization dosing pump（23）Configure various concentrations silicate-containing oil absorbing liquid；
C. obtained silicate-containing oil absorbing liquid passes through circulation fluid Pipeline transport to reactor II to be evaluated in step b（20）In with having
Machine waste gas reaction, the reacted reacted device II of circulation fluid（20）Bottom conduit flows out to reservoir（21）, via minisize dc
Water pump（18）And spinner flowmeter（22）Return to reactor II to be evaluated（20）VOCs in interior absorption simulated exhaust, reservoir
（21）Dosing pump is equipped with above side（23）；
D. the reservoir in fluid path cycling element（21）Using the physicochemical techniques including gravitational settling, receive and purify to be evaluated
Reactor II（20）The liquid that partially absorbs produced after debirs is absorbed, solid impurity therein is removed；
E. gas mass flow gauge is opened（4）, accurate control gas source and flow amount size；Supply source of the gas is opened, gas is entered by pipeline
Enter mass flow（Control）Meter（4）；Gas passes through mass flowmenter（4）Enter gas mixer chamber afterwards（5）Mixed, after mixing
Gas enters electromagnetic valve gas circuit controller（9）, pass through PLC（8）Gas circuit control unit is adjusted, mixed gas is automatically controlled and enters not
Same modular unit --- reactor, analysis detector or emptying；Analysis detecting system is entered to waste gas after mixed gas or processing
Row real time on-line monitoring；
The circulating absorption solution temperature conditionss prepared in described fluid path cycling element are 30-35 DEG C；In described circulation liquid pipeline
The circulating absorption solution of conveying is that concentration is 0.5-1 mmol/L silicone oil, and described circulating absorption solution pH value is controlled in 6.8-7.1；Institute
The reactor to be evaluated II stated（20）Interior liquid-gas ratio is no more than 5:1；VOCs concentration is no more than in described simulation industrial waste gas
2000 mg/ Nm3；Described reactor to be evaluated II（20）Middle pressure drop is no more than 3200 Pa；The organic exhaust gas tested on platform
Processing unit maximum quantity of wind 300 L/h, the maximum m of fluid flow 803/h。
Positive beneficial effect：This evaluation system collection gas precise control of flew, multidirectional gas circuit Automated condtrol, temperature, when
Between control, gas analysis be detected on one, with control function is more, precision high, security performance is excellent, easy to operate, investment fortune
Row low cost and other advantages, solve that traditional air-channel system control accuracy is limited, the low problem of safe class.Generally speaking, this hair
Bright provided test platform has control accuracy high, the low advantage of financial cost, can meet organic waste gas treatment device test,
Evaluate and require, meet the related request of domestic main industries VOCs controls；Can be in larger VOCs concentration ranges to dress to be measured
Put development to evaluate, and disclosure satisfy that the performance test requirement of polytype organic waste gas treatment device.
Brief description of the drawings
Fig. 1 is test platform architecture schematic diagram of the invention；
It is in figure：Nitrogen gas generator 1, air source control valve 2, external gas source device 3, gas mass flow gauge 4, gas mixer chamber 5,
Pressure drop sensor 6, alarm 7, PLC8, magnetic valve assembled unit 9, gas circuit switch board 10, digit time controller 11, data point
Analyse terminal PC 12, gas chromatograph 13, ball valve 14, ball valve 15, reactor I 16, intelligent digital temperature controller 17, minisize dc water pump
18th, water bath 19, reactor II 20, reservoir 21, spinner flowmeter 22.
Embodiment
Below in conjunction with the accompanying drawings, the present invention will be further described：
It is a kind of that the test platform for evaluating organic waste gas treatment device performance, including gas generating unit are automatically controlled based on gas circuit,
The gas circuit control unit being connected with gas generating unit, the research and application unit being connected with gas circuit control unit and auxiliary unit,
And fluid path cycling element；
Described gas generating unit includes external gas source device（3）And nitrogen gas generator（1）；Described external gas source device
（3）Switched by being provided with Air Valve Control（2）Pipeline and gas circuit control unit in gas circuit switch board（10）It is connected；External gas
Source device（3）For providing the gas needed for test platform, mainly including nitrogen gas generator, gas bomb etc., it is possible to provide oxygen
（O2）, nitrogen（N2）, carbon dioxide（CO2）, argon gas（Ar）With organic source of the gas such as dimethylbenzene, ethyl acetate；Air Valve Control is switched
（2）Control being turned on and off for Gas generation line；
Described gas circuit control unit includes gas circuit switch board（10）, described gas circuit switch board（10）Include gas mass flow
Gauge 4, described gas mass flow gauge（4）, described gas mass flow gauge（4）Pass through pipeline and gas mixer chamber（5）
Connection, gas mixer chamber（5）With by PLC（8）The magnetic valve assembled unit of control（9）Connection；
Described gas mass flow gauge（4）Including mass flowmenter and data display instrument, the gas into platform is accurately controlled
Body flow, gas mass flow is monitored using capillary heat transfer temperature difference calorimetry principle；Mass flowmenter can connect 5 simultaneously not
Same air delivering pipeline, detects O respectively2、N2、CO2、Five kinds of gas with various flows of Ar and organic gas, control the flow point of gas
It is not：O2For 100 mL/min；N2For 2.00 L/min；CO2For 200 mL/min；Ar is 1.00 L/min；Organic gas is
500 mL/min；Data display instrument includes LED display and gas flow adjustment knob.Gas flow adjusting knob is adjustable solar term
Body uninterrupted；Data display instrument accurately shows the uninterrupted of 5 gas with various simultaneously；Data display instrument is direct using circuit
It is connected with PC ends, by data logging software control, different time points gas flow size data is recorded in real time；Described gas is mixed
Close room（5）It is made up of stainless steel, is sufficiently mixed gas with various；It is described by PLC（8）The magnetic valve assembled unit of control
（9）, gas flow, four groups of air circuit breakers and PLC are controlled using four magnetic valve combinations and four groups of air circuit breakers（8）It is connected, leads to
Overregulate PLC（8）Output signal acts on air circuit breaker and then controls the operation of magnetic valve, the first solenoid valve control mixing source of the gas
Emptying；Second solenoid valve control mixing source of the gas enters gas chromatographicanalyzer（13）；3rd solenoid valve control controls mixed gas
Into reactor I（16）；4th solenoid valve control mixed gas enters reactor II（20）；
Described analysis detection unit includes gas chromatograph（13）With data record analysis terminal PC（12）；Described gas phase color
Spectrometer（13）Including：Six-way injection valve, splitter, temperature control system, detector and data record analysis platform；When simulation is useless
The reacted device I of gas（16）With reactor II（20）Pass through PLC after discharge（8）The magnetic valve of control（9）Through separating post separation, detection
The real-time recording detection data of device, to evaluate organic waste gas treatment device effect；
Described auxiliary unit is included by PLC（8）The digit time controller of control（11）, intelligent digital temperature controller（17）, pressure
Sensor drops（6）And alarm（7）；Part in above-mentioned accessory system passes through circuit and PLC（8）It is connected, phase is recorded in real time
Pass data simultaneously can be in data analysis terminal PC（12）Display；
Described digit time controller（11）With PLC（8）It is connected, gas piping is flowed in control platform；Described intelligent number
Word temperature controller（17）For controlling water bath（19）Temperature is implemented to be incubated in setting range to organic exhaust gas reactor to be evaluated；
Described pressure drop sensor（6）It is placed in organic waste gas treatment device II to be evaluated（20）Above and below tail gas pipe interface
Place, for monitoring organic waste gas treatment device II to be evaluated（20）In drag overall；The alarm（7）Pass through circuit and PLC
（8）It is connected, intelligent digital temperature controller is passed through beyond the situation of setting range to pressure drop in pipeline and temperature（17）With pressure drop sensing
Device（6）Feed back to PLC（8）And then output action is in alarm（7）, alarm（7）And alarm；
Described fluid path cycling element includes being located at water bath（19）In reservoir（21）And and reservoir（21）Connection
Minisize dc water pump（18）, minisize dc water pump（18）By being provided with spinner flowmeter（22）Pipeline and reactor II（20）
Connection；Described minisize dc water pump（18）H-Max 3.6-7.2 m, the m of maximum stream flow 83/h；Described spinner flowmeter
（22）Range of flow is 0-100 L/h；
A kind of that the test platform for evaluating organic waste gas treatment device performance is automatically controlled based on gas circuit, its method of testing includes following
Step：
A. total power switch, start-up frequency generating unit and gas circuit control unit are opened.Open gas mass flow gauge（4）, open
Open nitrogen gas generator and selection is opened and contains O2、N2、CO2、Ar and organic gas pressurized cylinder, gas pass through gas path pipe point
Jin Ru not mass flowmenter（4）, accurately control each gas flow size.
B. add silicone oil and prepare liquid for absorbing waste organic gas, open fluid path cycling element.
C. gas passes through gas mass flow gauge（4）Enter gas mixer chamber afterwards（5）Mixed.Gas enters after mixing
Enter electromagnetic valve gas circuit controller（9）, pass through PLC（8）Gas circuit control unit is adjusted, mixed gas is automatically controlled into different moulds
Module unit --- reactor, analysis detector or emptying；Detecting system is analyzed to carry out in real time waste gas after mixed gas or processing
On-line monitoring；
D. research and application unit and auxiliary unit are started.Run digit time controller（11）, intelligent digital temperature controller（17）、
Pressure drop sensor（6）And alarm（7）, monitoring platform is steady, safe operation, opens gas chromatograph（13）With data record point
Analyse terminal PC（12）.Gas after mixed gas or the processing of reacted device enters gas chromatograph through gas circuit pipe（13）Carry out online
Analysis, detection data pass through data record analysing terminal PC（12）Data analysis is recorded and is detected, to evaluate exhaust-gas treatment
Device performance.
Key reaction in organic waste gas treatment device to be evaluated is：
Described liquid circulation liquid, pH value is adjusted to 6.8-7.1.
When organic waste gas treatment device to be evaluated is the dry type reactors such as catalyst class, step b is out of service.
Described step c is 30-35 DEG C in the reaction temperature that fluid path tames unit.
The design liquid-gas ratio scope of organic waste gas treatment device to be evaluated should be at 2:1-7:Between 1.
Simulation organic exhaust gas concentration produced by test platform is 0-2000 mg/ Nm3。
Organic waste gas treatment device flow resistance to be evaluated should be no more than 3200 Pa.
E. gas generating unit simulates organic exhaust gas through gas circuit switch board（10）Organic exhaust gas to be evaluated is passed through by pipeline
Manage in device, organic exhaust gas to be clean is fully contacted with circulation fluid in organic waste gas treatment device to be evaluated, it is useless after purification
Gas is from organic waste gas treatment device top discharge to be evaluated.
1. gas circuit control unit manufactures and designs
Design gas circuit switch board（10）High 1800 mm, long 1000 mm, wide 1000 mm, is made of stainless steel.Cabinet is divided into 4 layers,
From top to bottom first layer gas mass flow gauge（4）Display instrument, second layer gas mass flow gauge（4）Mixed by pipeline and gas
Close room（5）Connection, gas mixer chamber（5）For cylinder stainless steel, inside sets multilayer baffle plate, high 300 mm, sectional area
700 mm2, gas mixer chamber（5）With PLC（8）The magnetic valve assembled unit of control（9）Connection, four groups of magnetic valve yi word pattern arrangements
It is connected with being switched on control cabinet panel；PLC（8）Protected by bucker and ensure radiating, with electromagnetic valve gas circuit controller（9）、
Digit time controller（11）, intelligent digital temperature controller（17）, pressure drop sensor（6）And alarm（7）It is connected；3rd layer miniature
DC water pump（18）And spinner flowmeter（22）；4th layer of gas chromatograph（13）.
2. organic waste gas treatment device installation and debugging to be evaluated
(a) organic waste gas treatment device to be evaluated is installed on test bracket, and be fixed；
(b) associated pressure drop sensor is connected（6）Probe, intelligent digital temperature controller（17）The monitoring devices such as probe；
(c) seal tightness test, checks organic waste gas treatment device gas leakage situation to be evaluated in wider range of operating parameters；
(d) associated change in organic waste gas treatment device to be evaluated is debugged, optimal condition of work is reached.
3. the preparation of circulation fluid
After the completion of device is built, a certain amount of silicone oil is added into reservoir by measuring pump（21）In, absorbing liquid therein is matched somebody with somebody
PH value 6.8-7.1 circulating absorption solution is made.
4. dynamic tail gas clean-up processing.
Embodiment 1
A certain amount of silicone oil is added into the m of reservoir 0.33Absorbing liquid is configured in water, the pH value of regulation absorbing liquid is 7.0.Start liquid
Body circulation pump, in the case where reactor is normal temperature condition, will contain the mg/Nm of concentration 10003Dimethylbenzene simulated exhaust, which is passed through, to be evaluated to be had
In machine emission-control equipment, the volume flow ratio of simulation organic exhaust gas and absorbing liquid is 3, runs 8 h, and detection discharge has been purified
Waste gas, as a result for：The removal efficiency of dimethylbenzene is 66.4%.
Embodiment 2
A certain amount of silicone oil is added into the m of reservoir 0.33Absorbing liquid is configured in water, regulation absorbing liquid pH value is 7.0.Start liquid
Circulating pump, under reactor normal temperature condition, will contain the mg/Nm of concentration 9003、1000 mg/Nm3The mould of ethyl acetate and dimethylbenzene
Intend waste gas to be passed through in organic waste gas treatment device to be evaluated, simulation organic exhaust gas is 5 with absorbing liquid volume flow ratio, runs 8 h,
The waste gas that has purified of detection discharge, as a result for：The removal efficiency of ethyl acetate and dimethylbenzene is respectively 79.2%, 64.1%.
Embodiment 3
A certain amount of silicone oil is added into the m of reservoir 0.33Absorbing liquid is configured in water, regulation absorbing liquid pH value is 7.0.Start liquid
Circulating pump, in the case where reactor is normal temperature condition, will contain the mg/Nm of concentration 16003、1000 mg/Nm3Ethyl acetate and dimethylbenzene
Simulated exhaust be passed through in organic waste gas treatment device to be evaluated, simulation organic exhaust gas and absorbing liquid volume flow ratio be 7, fortune
The h of row 8, the waste gas that has purified of detection discharge, as a result for：The removal efficiency of ethyl acetate and dimethylbenzene is respectively 68.8%,
52.7%。
Embodiment 4
The fluid path circulatory system is closed, in the case where reactor is normal temperature condition, 30 DEG C contain 1500 mg/ Nm by mean temperature3Second sulphur
Alcohol waste gas is passed through in the photo catalysis reactor to be measured of built-in catalyst module, runs 8 h, the waste gas that detection discharge has been purified, knot
It is really：The removal efficiency 68.4% of ethyl mercaptan.
A kind of test platform that evaluation organic waste gas treatment device performance is automatically controlled based on gas circuit provided by the present invention,
The progress of gas generating unit, gas circuit control unit, research and application unit, auxiliary unit and fluid path cycling element is integrated, so that
Realize and input source of the gas concentration is accurately controlled by PLC, accurate switching pipeline flow direction, and mixed gas is existed in real time
Line analysis.Generally speaking, evaluation system provided by the present invention has multifunctionality, security performance is high, reduce artificial operation and
Management is convenient and swift, can reach organic exhaust gas high accuracy, safety detection requirement, can meet the reality of a variety of different type reactors
Test demand.
Above case study on implementation is merely to illustrate the preferred embodiment of the present invention, but the present invention is not limited to above-mentioned embodiment party
Formula, in the knowledge that the field those of ordinary skill possesses, that is made within the spirit and principles in the present invention is any
Modification, equivalent substitute and improvement etc., are regarded as the protection domain of the application.
Claims (10)
1. a kind of automatically control the test platform for evaluating organic waste gas treatment device performance based on gas circuit, it is characterised in that：Including
Gas generating unit, the gas circuit control unit being connected with gas generating unit, the research and application list being connected with gas circuit control unit
Member and auxiliary unit, and fluid path cycling element.
2. a kind of test for automatically controlling evaluation organic waste gas treatment device performance based on gas circuit according to claim 1 is put down
Platform, it is characterised in that：Described gas generating unit includes external gas source device（3）And nitrogen gas generator（1）；Described is outer
Connect compressed air source unit（3）By being provided with air source control valve（2）Pipeline and gas circuit control unit in gas circuit switch board（10）Phase
Even.
3. a kind of test for automatically controlling evaluation organic waste gas treatment device performance based on gas circuit according to claim 1 is put down
Platform, it is characterised in that：Described gas circuit control unit includes gas circuit switch board（10）, described gas circuit switch board（10）Include
Gas mass flow gauge（4）, described gas mass flow gauge（4）Pass through pipeline and gas mixer chamber（5）Connection, gas mixing
Room（5）With by PLC（8）The magnetic valve assembled unit of control（9）Connection.
4. a kind of test for automatically controlling evaluation organic waste gas treatment device performance based on gas circuit according to claim 3 is put down
Platform, it is characterised in that：Described gas mass flow gauge（4）Including mass flowmenter and data display instrument；Mass flowmenter can
5 different air delivering pipelines are connected simultaneously；Data display instrument accurately shows the uninterrupted of corresponding 5 gas with various simultaneously；
Data display instrument is directly connected using circuit with PC ends, by data logging software control, in real time record different time points gas stream
Measure data；Described gas mixer chamber（5）It is made up of stainless steel, is sufficiently mixed gas with various；It is described by PLC（8）
The magnetic valve assembled unit of control（9）, gas flow is controlled using four magnetic valve combinations and 4 groups of air circuit breakers, 4 groups of gas circuits are opened
Close and PLC（8）It is connected, acts on air circuit breaker group by adjusting PLC output signals and then control the operation of magnetic valve, the first electricity
Magnet valve control mixing source of the gas emptying；Second solenoid valve control mixing source of the gas enters gas chromatographicanalyzer（13）；3rd magnetic valve
Control control mixed gas enters reactor I（16）；4th solenoid valve control mixed gas enters reactor II（20）.
5. a kind of test for automatically controlling evaluation organic waste gas treatment device performance based on gas circuit according to claim 1 is put down
Platform, it is characterised in that：Described analysis detection unit includes gas chromatograph（13）And and gas chromatograph（13）Connection
Data record analysing terminal PC（12）；Described gas chromatographicanalyzer（13）Including：Six-way valve sampling valve, splitter, temperature control
System, detector and data record analysis platform；When the reacted device I of simulated exhaust（16）With reactor II（20）Pass through after discharge
The magnetic valve assembled unit of PLC controls（9）In magnetic valve, through separating post separation, obtain data-signal into detector, and pass
The real-time recording detection data of terminal PC is defeated by, to reflect organic waste gas treatment device treatment effect to be evaluated in real time；Described electricity
Magnet valve assembled unit（9）In magnetic valve coupled reaction device II（20）Pipeline on be provided with the first ball valve（14）；Described is anti-
Answer device I（16）Connect magnetic valve assembled unit（9）In magnetic valve pipeline on be provided with the second ball valve（15）.
6. a kind of test for automatically controlling evaluation organic waste gas treatment device performance based on gas circuit according to claim 1 is put down
Platform, it is characterised in that：Described auxiliary unit is included by PLC（8）The digit time controller of control（11）, intelligent digital temperature control
Device（17）, pressure drop sensor（6）And alarm（7）；Part in above-mentioned accessory system passes through circuit and PLC（8）It is connected, it is real
When control and record related data and can be in data analysis terminal PC（12）Display.
7. a kind of test for automatically controlling evaluation organic waste gas treatment device performance based on gas circuit according to claim 6 is put down
Platform, it is characterised in that：Described digit time controller（11）With PLC（8）It is connected；Described intelligent digital temperature controller（17）With
In control water bath（19）Temperature is in setting range；Described pressure drop sensor（6）It is placed in organic waste gas treatment device to be evaluated
Reactor II（20）Above and below tail gas pipeline interface and reactor I（16）Top；The alarm（7）Pass through line
Road and PLC（8）It is connected, intelligent digital temperature controller is passed through beyond the situation of setting range to pressure drop in pipeline and temperature（17）And pressure
Sensor drops（6）Feed back to PLC（8）And then output action is in alarm（7）, alarm（7）And alarm.
8. a kind of test for automatically controlling evaluation organic waste gas treatment device performance based on gas circuit according to claim 1 is put down
Platform, it is characterised in that：Described fluid path cycling element includes being located at water bath（19）In reservoir（21）And and reservoir
（21）The minisize dc water pump of connection（18）, minisize dc water pump（18）By being provided with spinner flowmeter（22）Pipeline with it is anti-
Answer device II（20）Connection；Described minisize dc water pump（18）H-Max 3.6-7.2 m, the m of maximum stream flow 83/h；Described
Spinner flowmeter（22）Range of flow is 0-100 L/h.
9. a kind of test platform that evaluation organic waste gas treatment device performance is automatically controlled based on gas circuit as claimed in claim 1
Method of testing, it is characterised in that comprise the following steps：
A. according to reactor I to be evaluated（16）Or reactor II（20）Demand, dismantles and installs different external connection compressed air source unit（3）,
Variety classes and concentration target pollutant are configured, industry is simulated containing VOCs containing different organic vapor concentrations so as to simulate to produce
Waste gas；
B. in reservoir（21）Middle utilization dosing pump（23）Configure various concentrations silicate-containing oil absorbing liquid；
C. obtained silicate-containing oil absorbing liquid passes through circulation fluid Pipeline transport to reactor II to be evaluated in step b（20）In with having
Machine waste gas reaction, the reacted reacted device II of circulation fluid（20）Bottom conduit flows out to reservoir（21）, via minisize dc
Water pump（18）And spinner flowmeter（22）Return to reactor II to be evaluated（20）VOCs in interior absorption simulated exhaust, reservoir
（21）Dosing pump is equipped with above side（23）；
D. the reservoir in fluid path cycling element（21）Using the physicochemical techniques including gravitational settling, receive and purify to be evaluated
Reactor II（20）The liquid that partially absorbs produced after debirs is absorbed, solid impurity therein is removed；
E. gas mass flow gauge is opened（4）, accurate control gas source and flow amount size；Supply source of the gas is opened, gas is entered by pipeline
Enter mass flowmenter（4）；Gas passes through mass flowmenter（4）Enter gas mixer chamber afterwards（5）Mixed, gas enters after mixing
Enter electromagnetic valve gas circuit controller（9）, pass through PLC（8）Gas circuit control unit is adjusted, mixed gas is automatically controlled and enters disparate modules
Unit --- reactor, analysis detector or emptying；Detecting system is analyzed waste gas after mixed gas or processing is carried out in real time to exist
Line is monitored.
10. a kind of method of testing that the test platform for evaluating organic waste gas treatment device performance is automatically controlled based on gas circuit, it is special
Levy and be：The circulating absorption solution temperature conditionss prepared in described fluid path cycling element are 30-35 DEG C；Described circulation liquid pipeline
The circulating absorption solution of middle conveying is concentration 0.5-1 mmol/L silicone oil, passes through dosing pump（23）In reservoir（21）It is middle to prepare；Institute
The circulating absorption solution pH value stated is controlled in 6.8-7.1；Described reactor to be evaluated II（20）Interior liquid-gas ratio is no more than 5:1；Institute
VOCs concentration is no more than 2000 mg/ Nm in the simulation industrial waste gas stated3；Described reactor to be evaluated II（20）Middle pressure drop is not
More than 3200 Pa；Organic waste gas treatment device maximum quantity of wind 300 L/h, the maximum m of fluid flow 80 tested on platform3/h。
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