CN209076396U - A kind of organic waste gas treatment device - Google Patents
A kind of organic waste gas treatment device Download PDFInfo
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- CN209076396U CN209076396U CN201821701888.1U CN201821701888U CN209076396U CN 209076396 U CN209076396 U CN 209076396U CN 201821701888 U CN201821701888 U CN 201821701888U CN 209076396 U CN209076396 U CN 209076396U
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Abstract
A kind of organic waste gas treatment device, it includes gas collector, the exhaust outlet of gas collector is connect with the air inlet of exhaust gas pretreating device, the exhaust outlet of exhaust gas pretreating device and the air inlet of air extractor connect, the exhaust outlet of air extractor and the air inlet of exhaust aftertreatment device connect, the exhaust outlet of exhaust aftertreatment device is connect with exhaust tube, inlet gas concentration detection device is equipped on gas piping between gas collector and exhaust gas pretreating device, exhaust concentration detection device is equipped on gas piping between exhaust aftertreatment device and exhaust tube, including control device, the data input pin of control device is connect with inlet gas concentration detection device, the data output end of control device is connect with air extractor.The purpose of this utility model is the safety in order to further increase chemical emission processing and discharge.
Description
Technical field
The utility model relates to chemical emission process fields, and in particular to a kind of organic waste gas treatment device.
Background technique
Currently, be related to organic chemical industry or other industries (such as spraying, resource reclaim) all can in device exhaust outlet or
The volatilization of fixed-site generation organic matter.If the content of organics in exhaust gas is higher, can generally it pass through active carbon (carbon fiber)
The modes such as absorption, the solvent absorption organic matter high to added value separates and recovers；If the content of organics in exhaust gas is lower,
Non-recovery value or cost recovery are excessively high, it is necessary to be handled (improvement) to exhaust gas to meet the requirement of environment protection standard discharge.
In recent years, the provinces and cities such as Tianjin, Hebei, Jiangsu, Sichuan, Shaanxi have put into effect volatile organic matter (VOCs) discharge in succession
Control standard (provincial standard), to VOCs relevant different industries pollutant (pollution factor) concentration of emission, rate of discharge, exhaust
Cylinder height etc. has all formulated emission limit.
The domestic existing major way handled volatile organic matter has: low-temperature plasma, UV photochemical catalytic oxidation (light
Solution), catalysis oxidation, catalysis burning, activated carbon adsorption etc..Various processing modes have pros and cons, such as low-temperature plasma because existing
It may bring that security risk, that photochemical catalytic oxidation is generally adapted concentration for the treatment of is especially low if electrion security control is not in place
Exhaust gas, activated carbon adsorption may bring the deficiencies of solid waste (or even dangerous waste, secondary pollution) and short cycle of operation.
Organic component is usually inflammable and explosive substance in exhaust gas, and there are certain explosion limit ranges, is especially in the presence of
A variety of organic components may make the explosion limit range of mix waste gas extremely wide, bring pole for the selection and operation of emission-control equipment
Big security risk.
Summary of the invention
The purpose of this utility model is the safety in order to further increase chemical emission processing and discharge.
A kind of organic waste gas treatment device, it includes gas collector, before the exhaust outlet and exhaust gas of gas collector
The air inlet of processing unit connects, and the exhaust outlet of exhaust gas pretreating device and the air inlet of air extractor connect, air extractor
The connection of the air inlet of exhaust outlet and exhaust aftertreatment device, the exhaust outlet of exhaust aftertreatment device is connect with exhaust tube, in gas
Gas piping between collection device and exhaust gas pretreating device is equipped with inlet gas concentration detection device, in exhaust aftertreatment device
Gas piping between exhaust tube is equipped with exhaust concentration detection device, including control device, the data input of control device
End is connect with inlet gas concentration detection device, and the data output end of control device is connect with air extractor.
Including safety interlock system, safety interlock system includes warning device, the data terminal of safety interlock system respectively with
The data terminal connection of inlet gas concentration detection device, exhaust gas pretreating device, air extractor, exhaust aftertreatment device.
The exhaust gas pretreating device is UV photocatalytic oxidation device or low-temperature plasma device.
The exhaust aftertreatment device is activated carbon adsorption device or spray-absorption device.
The air extractor is centrifugal fan.
The exhaust tube includes cylinder shell, and cylinder shell is internally provided with adsorption layer, cylinder shell bottom be equipped with into
Port, cylinder shell top are equipped with exhaust outlet.
The longitudinal section of the cylinder shell be it is trapezoidal, several adsorption layers are horizontally installed in cylinder shell.
The adsorption layer includes activated carbon adsorption layer.
Trapezium structure body, air inlet setting are formed positioned at the bottom end and side wall of the lowermost adsorption layer and cylinder shell
On the side wall of trapezium structure body.
By adopting the above technical scheme, following technical effect can be brought:
1) the utility model is equipped with automatic control system and safety interlock system, can not only lifting device environment-protective water
Flat, intelligentized control method level, and have in terms of reliability of keeping the safety in production and preferably ensure；
2) the utility model can change the air quantity of adjustment pumping in real time according to air inlet organic concentration, ensure treatment effeciency
The degree of automation of existing organic waste gas treatment device is promoted simultaneously, and there is preferable energy-saving benefit；
3) when air inlet organic concentration is significantly increased, can judge whether to send out according to setting data by safety interlock system
The signals such as alarm, interlocking out, be safely operated device can in an abnormal situation；
It 4) include cylinder shell using exhaust tube, cylinder shell is internally provided with adsorption layer, is equipped in cylinder shell bottom
The structure of air inlet, it is processed after exhaust gas enter exhaust tube from cylinder shell bottom, then from the exhaust at the top of cylinder shell
Mouth discharge, centre can again pass by absorption by adsorption layer, can increase the effect of tail gas adsorption；
5) use the longitudinal section of cylinder shell to be trapezoidal, several adsorption layers are horizontally installed on the structure in cylinder shell, cylinder
From top to bottom, capacity gradual change is big for body case, and the time that the gas being located in shell can be made to contact with adsorption layer is more long, imitates absorption
Fruit is more preferable.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of exhaust tube in the utility model.
Specific embodiment
A kind of organic waste gas treatment device as shown in Figure 1, it includes gas collector 1, the exhaust of gas collector 1
Mouth is connect with the air inlet of exhaust gas pretreating device 3, and the exhaust outlet of exhaust gas pretreating device 3 and the air inlet of air extractor 4 connect
It connects, the exhaust outlet of air extractor 4 is connect with the air inlet of exhaust aftertreatment device 5, the exhaust outlet of exhaust aftertreatment device 5 and row
Inflator 7 connects, and inlet gas concentration detection dress is equipped on the gas piping between gas collector 1 and exhaust gas pretreating device 3
2 are set, exhaust concentration detection device 6, including control are equipped on the gas piping between exhaust aftertreatment device 5 and exhaust tube 7
The data input pin of device 8, control device 8 is connect with inlet gas concentration detection device 2, the data output end and pumping of control device 8
Device of air 4 connects.
Including safety interlock system 9, safety interlock system 9 includes warning device, and the data terminal of safety interlock system 9 is distinguished
It is connect with the data terminal of inlet gas concentration detection device 2, exhaust gas pretreating device 3, air extractor 4, exhaust aftertreatment device 5.
The exhaust gas pretreating device 3 is UV photocatalytic oxidation device or low-temperature plasma device or other organic wastes
Flash Gas Compression Skid System can be used alone, and can also be used in series.
The exhaust aftertreatment device 5 is at activated carbon adsorption device or spray-absorption device or other organic exhaust gas
Device is managed, can be used alone, can also be used in series.
The air extractor 4 is centrifugal fan or other air transporting arrangements, and motor uses fire-proof motor, and air quantity can
It is adjusted by frequency converter.
The exhaust tube 7 includes cylinder shell 10, and cylinder shell 10 is internally provided with adsorption layer 11, at 10 bottom of cylinder shell
Portion is equipped with air inlet 12, is equipped with exhaust outlet at the top of cylinder shell 10.
The longitudinal section of the cylinder shell 10 be it is trapezoidal, several adsorption layers 11 are horizontally installed in cylinder shell 10.
The adsorption layer 11 includes activated carbon adsorption layer.
Trapezium structure body, air inlet are formed positioned at the bottom end and side wall of the lowermost adsorption layer 11 and cylinder shell 10
12 are arranged on the side wall of trapezium structure body.
Specifically, robot control system(RCS) 8: 2 institute of inlet gas concentration detection device is arranged in air extractor 4 and inlet gas concentration detection device 2
The gas inlet concentration feedback detected adjusts the sucking rate air quantity of air extractor 4 to robot control system(RCS) 8, to guarantee before entering exhaust gas
The exhaust gas concentration of processing unit 3 is maintained within OK range.
Safety is arranged in inlet gas concentration detection device 2, exhaust gas pretreating device 3, air extractor 4 and exhaust aftertreatment device 5
Interlock system 9: gas inlet concentration feedback detected by inlet gas concentration detection device 2 will to safety interlock system 9, the system
The degree of closeness of inlet gas concentration and organic exhaust gas lower explosion limit, configured with alarm and interlock, and then to adjust air extractor 4
Sucking rate, determine the operating status of exhaust gas pretreating device 3 and exhaust aftertreatment device 5 at different conditions.
It is also an option that, conventional processing organic exhaust gas may be selected in exhaust gas pretreating device 3 and exhaust aftertreatment device 5
UV photodissociation device or low-temperature plasma device or adsorbent equipment etc.；
Alternatively, control device 8, the optional model siemens PLC of safety interlock system 9 or same brand；Its
Middle safety interlock system 9 includes warning device, and acoustic-optic alarm, inlet gas concentration detection device 2, exhaust can be selected in warning device
The optional gas concentration sensor of concentration detection apparatus 6, wherein acoustic-optic alarm, gas concentration sensor model are unlimited, ability
Field technique personnel select according to conventional techniques.
The working principle of the utility model is as follows:
Organic waste gas treatment device, comprising organic waste gas treatment device itself and automatically control and safety interlocking two be
System.In the offgas under the lower nominal situation of content of organics, the operating status of device is controlled by automatic control system；When
When content of organics has larger amplification, safety interlock system may be triggered；It is dense according to system to organic concentration facilities
Degree can trigger alarm during changing from small to big first, may trigger interlocking when concentration further increases.It is set in advance according to system
It sets, the operating status of equipment can be adjusted automatically under normal production, unusual service condition.
(1) nominal situation state: air extractor 4 remains operational state, and organic exhaust gas (maintains micro- through gas collector 1
Negative pressure) through inlet gas concentration detection device 2 it can detect that content of organics therein, it is big absolutely subsequently into exhaust gas pretreating device 3
Partial organic substances are broken down into CO herein2And H2The small molecules inorganic matter such as O is delivered to exhaust aftertreatment device 5 through air extractor 4
It is further processed remaining minute quantity organic matter completely, through the detectable place of exhaust concentration detection device 6 on its outlet conduit
The content of organics in organic exhaust gas after reason, final tail gas is through 7 qualified discharge of exhaust tube.Equipment under this state runs shape
State is mainly adjusted by robot control system(RCS) 8.For example it is Xmg/m that exhaust gas pretreating device 3, which requires content of organics,3(it can be model
Enclosing value) Shi Fangneng reaches higher removal rate, when the content of organics Y that inlet gas concentration detection device 2 detects is lower than X value,
Signal will gradually decrease air quantity by 4 frequency conversion of air extractor after feeding back to robot control system(RCS) 8, be gradually increased Y until reaching X range
Within, device can efficient operation；When the content of organics Y that inlet gas concentration detection device 2 detects is higher than X value, signal feedback
It will be gradually increased air quantity by 4 frequency conversion of air extractor to after robot control system(RCS) 8, within the scope of gradually decreasing Y until reaching X.
Unusual service condition typically occurs in exhaust gas to be increased suddenly in the content of organics short time, still may by increasing air quantity
The case where its content can not be reduced, may need to start safety interlock system at this time.The condition that safety interlock system 9 starts is main
The data such as the lower explosion limit (100%LEL) according to organic matter in exhaust gas are configured alarming value (A%LEL) and interlocking value (B%
LEL).After alarm starting, the operator of device should just check technique or equipment dependent failure situation at source exhaust gas, so as to
Failure is discharged in time, reduces content of organics in exhaust gas, device is made to be back to nominal situation state.
(2) unusual service condition state (alarm): as inlet gas concentration detection device 2 detects that exhaust gas content of organics reaches alarm
When setting value A%LEL, starting alarms (forms such as acousto-optic) while passing through air extractor after signal feeds back to safety interlock system 9
4 frequency conversions quickly increase air quantity, if content of organics can be down to A%LEL hereinafter, if system alarm release, if content of organics tie up
It holds in A%LEL or more, then system alarm state persistently remains unchanged.
(3) unusual service condition state (interlocking): if increase air quantity content of organics remain within A%LEL or more and constantly
Increase, when reaching interlocking setting value B%LEL, signal starts interlocking after feeding back to safety interlock system 9, and air extractor 4 is persistently transported
Row, simultaneously closes off exhaust gas pretreating device 3 (because there are organic component and electric field or high energy UV light contacts, high concentrations for the device
Lower presence fires risk), exhaust aftertreatment device 5 is that activated carbon adsorption or spray washing can be after reforwarding there is no security risk
Row.
Embodiment 1: organic component is ethylene oxide in exhaust gas, remaining is air.
(1) nominal situation state:
Exhaust gas pretreating device is 250~300mg/m in ethylene oxide content3When removal rate it is high (up to 95% or more), because
And by air extractor air quantity adjust control the ethylene oxide content of air inlet maintain robot control system(RCS) setting value (i.e. 250~
300mg/m3) in range.Normal flow is organic exhaust gas through gas collector, through inlet gas concentration detection device, subsequently into
Ethylene oxide is broken down into CO in exhaust gas pretreating device2And H2O, being delivered to exhaust aftertreatment device through air extractor makes residue
Minute quantity ethylene oxide be further processed completely, the having after exhaust concentration detection device detection processing on its outlet conduit
Content of organics in machine exhaust gas, final tail gas is through exhaust tube qualified discharge.
When air inlet ethylene oxide content is less than 250mg/m3When (content is relatively low at this time), air extractor air quantity gradually decreases,
Inlet gas concentration is increase gradually to 250mg/m3Air extractor air quantity maintains stable operation afterwards.
When air inlet ethylene oxide content is greater than 250mg/m3When (content is higher at this time), air extractor air quantity gradually increases,
Inlet gas concentration is gradually decrease to 300mg/m3Air extractor air quantity maintains stable operation afterwards.
(2) unusual service condition state: ethylene oxide lower explosion limit (100%LEL) is 3% (volume ratio V/V, similarly hereinafter), corresponding
Mass-volume concentration (m/V) be 58g/m3, i.e. 100%LEL=58g/m3, alarm setting value is 5% in safety interlock system
LEL=2.9g/m3, interlocking setting value is 15%LEL=8.7g/m3。
When air inlet ethylene oxide content is greater than 2.9g/m3, concentration has been more than alarm setting value at this time, system starting alarm,
Air quantity is quickly increased by air extractor frequency conversion simultaneously, if content of organics can be down to 2.9g/m3Hereinafter, then system alarm is automatic
It releases, if content of organics maintains 2.9g/m3More than, then system remains that alarm condition is run, and air quantity maintains at this time
Maximum value.
When air inlet ethylene oxide content is greater than 8.7g/m3, concentration has been more than interlocking setting value at this time, and system starting interlocks,
Exhaust gas pretreating device automatically powers off (occurring to prevent the accidents such as firing) out of service, and the air extractor for having explosion prevention function continues
Operation, exhaust aftertreatment device is if non-band electric installation sustainable operation (if having electrical equipment or component also Ying Zidong inside it
It powers off out of service).
Embodiment 2: organic component is 1,2,4- trimethylbenzenes in exhaust gas, remaining is air.
(1) nominal situation state:
Exhaust gas pretreating device is 350~380mg/m in 1,2,4- front three benzene content3When removal rate it is high (up to 95% with
On), thus adjusted by air extractor air quantity to control the 1 of air inlet, 2,4- front three benzene contents maintain robot control system(RCS) setting value
(i.e. 350~380mg/m3) in range.Normal flow is organic exhaust gas through gas collector, through inlet gas concentration detection device,
CO is broken down into subsequently into 1,2,4- trimethylbenzene in exhaust gas pretreating device2And H2O, after air extractor is delivered to exhaust gas
Reason device is further processed remaining 1,2,4- trimethylbenzene of minute quantity completely, detects and fills through exhaust concentration on its outlet conduit
Organic exhaust gas content after setting detection processing, tail gas is through exhaust tube qualified discharge.
When air inlet 1,2,4- front three benzene content is less than 350mg/m3When (content is relatively low at this time), air extractor air quantity gradually drops
Low, inlet gas concentration is increase gradually to 350mg/m3Air extractor air quantity maintains stable operation afterwards.
When air inlet 1,2,4- front three benzene content is greater than 380mg/m3When (content is higher at this time), air extractor air quantity gradually increases
Add, inlet gas concentration is gradually decrease to 380mg/m3Air extractor air quantity maintains stable operation afterwards.
(2) unusual service condition state: 1,2,4- trimethylbenzene lower explosion limit (100%LEL) is 0.9%, and corresponding mass volume is dense
Degree is 48g/m3, i.e. 100%LEL=48g/m3, alarm setting value is 4%LEL=1.9g/m in safety interlock system3, interlocking
Setting value is 8%LEL=3.8g/m3。
When air inlet 1,2,4- front three benzene content is greater than 1.9g/m3, concentration has been more than alarm setting value, system starting report at this time
It warns while air quantity is quickly increased by air extractor frequency conversion, if content of organics can be down to 1.9g/m3Hereinafter, then system alarm
It automatically terminates, if content of organics maintains 1.9g/m3More than, then system remains that alarm condition is run, and air quantity is tieed up at this time
It holds in maximum value.
When air inlet 1,2,4- front three benzene content is greater than 3.8g/m3, concentration has been more than interlocking setting value, system starting connection at this time
Lock, exhaust gas pretreating device automatically power off (occurring to prevent the accidents such as firing) out of service, have the air extractor of explosion prevention function
Continuous service, exhaust aftertreatment device is if non-band electric installation sustainable operation (if having electrical equipment or component also to answer inside it
It automatically powers off out of service).
Waste gas component belonging to the utility model is including but not limited to the organic matter in above-described embodiment.
Claims (9)
1. a kind of organic waste gas treatment device, it is characterised in that: it includes gas collector (1), gas collector (1)
Exhaust outlet is connect with the air inlet of exhaust gas pretreating device (3), the exhaust outlet of exhaust gas pretreating device (3) and air extractor (4)
Air inlet connection, the exhaust outlet of air extractor (4) connect with the air inlet of exhaust aftertreatment device (5), and exhaust after-treatment fills
The exhaust outlet for setting (5) is connect with exhaust tube (7), the flue between gas collector (1) and exhaust gas pretreating device (3)
Road is equipped with inlet gas concentration detection device (2), sets on the gas piping between exhaust aftertreatment device (5) and exhaust tube (7)
Have exhaust concentration detection device (6), including control device (8), data input pin and the inlet gas concentration detection of control device (8) fill
(2) connection is set, the data output end of control device (8) is connect with air extractor (4).
2. organic waste gas treatment device according to claim 1, it is characterised in that: including safety interlock system (9), safety
Interlock system (9) includes warning device, the data terminal of safety interlock system (9) respectively with inlet gas concentration detection device (2), exhaust gas
The data terminal connection of pretreating device (3), air extractor (4), exhaust aftertreatment device (5).
3. organic waste gas treatment device according to claim 1 or 2, it is characterised in that: the exhaust gas pretreating device (3)
For UV photocatalytic oxidation device or low-temperature plasma device.
4. organic waste gas treatment device according to claim 1 or 2, it is characterised in that: the exhaust aftertreatment device (5)
For activated carbon adsorption device or spray-absorption device.
5. organic waste gas treatment device according to claim 1 or 2, it is characterised in that: the air extractor (4) is centrifugation
Formula blower.
6. organic waste gas treatment device according to claim 1, it is characterised in that: the exhaust tube (7) includes outside cylinder
Shell (10), cylinder shell (10) are internally provided with adsorption layer (11), are equipped with air inlet (12) in cylinder shell (10) bottom, cylinder
Exhaust outlet is equipped at the top of shell (10).
7. organic waste gas treatment device according to claim 6, it is characterised in that: the longitudinal section of the cylinder shell (10)
To be trapezoidal, several adsorption layers (11) are horizontally installed in cylinder shell (10).
8. organic waste gas treatment device according to claim 6 or 7, it is characterised in that: the adsorption layer (11) includes living
Property charcoal adsorption layer.
9. organic waste gas treatment device described according to claim 6 or 7, it is characterised in that: be located at the lowermost adsorption layer
(11) trapezium structure body is formed with the bottom end of cylinder shell (10) and side wall, trapezium structure body is arranged in air inlet (12)
On side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821701888.1U CN209076396U (en) | 2018-10-19 | 2018-10-19 | A kind of organic waste gas treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821701888.1U CN209076396U (en) | 2018-10-19 | 2018-10-19 | A kind of organic waste gas treatment device |
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| Publication Number | Publication Date |
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| CN209076396U true CN209076396U (en) | 2019-07-09 |
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ID=67120025
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023608A (en) * | 2020-09-29 | 2020-12-04 | 佛山市己阿已磁电设备有限公司 | Gas purifier capable of killing viruses at high temperature |
-
2018
- 2018-10-19 CN CN201821701888.1U patent/CN209076396U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023608A (en) * | 2020-09-29 | 2020-12-04 | 佛山市己阿已磁电设备有限公司 | Gas purifier capable of killing viruses at high temperature |
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