CN103048430A - Device and method for monitoring sample gas - Google Patents
Device and method for monitoring sample gas Download PDFInfo
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- CN103048430A CN103048430A CN2013100071958A CN201310007195A CN103048430A CN 103048430 A CN103048430 A CN 103048430A CN 2013100071958 A CN2013100071958 A CN 2013100071958A CN 201310007195 A CN201310007195 A CN 201310007195A CN 103048430 A CN103048430 A CN 103048430A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 71
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 239000003517 fume Substances 0.000 claims abstract description 12
- 230000001131 transforming effect Effects 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000005494 condensation Effects 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 230000002035 prolonged effect Effects 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000000738 capillary electrophoresis-mass spectrometry Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The embodiment of the invention discloses a device and a method for monitoring sample gas. The device is characterized in that the device comprises a humidiometer and a control unit, wherein the thermometer comprises a humidity sensor; the humidity sensor is used for collecting humidity of the condensed sample gas and acquiring a humidity signal; an input end of the control unit is connected with an output end of the humidity sensor; the control unit is used for converting the received humidity signal to a humidity value of the sample gas; the converted humidity value is compared with a preset humidity threshold; if the converted humidity value is greater than the humidity threshold, a sampling pump is powered off; as can be seen, as the humidiometer is added in a continuous fume monitoring system, real time monitoring can be effectively conducted on vapor in the sample gas, a gas analyser is protected from being damaged by the vapor in the sample gas, and the life of the gas analyser is greatly prolonged.
Description
Technical field
The present invention relates to the data monitoring field, particularly relate to a kind of sample gas supervising device and method.
Background technology
Flue gas is the potpourri of gas and flue dust, is the main cause of polluting the residential block atmosphere.The composition of flue gas is very complicated, comprise in the gas: sulphuric dioxide (SO2), hydrochloric acid (HCL), carbon monoxide (CO), carbon dioxide (CO2), hydrocarbon and oxynitrides etc., flue dust comprises ash content, coal grain, oil droplet and the high-temperature split product etc. of fuel.Therefore flue gas is the combined pollution of multiple poisonous substance to the pollution of environment.
Fume continuous monitoring system (CEMS) refers to the gaseous contaminant of atmospheric pollution source emission and particle are carried out concentration and total emission volumn continuous monitoring and information be real-time transmitted to the device of competent authorities.
Gas analyzer is the core component of fume continuous monitoring system, is used for the sample gas that extracts in the flue at scene or chimney etc. is carried out analyzing and processing, and there are many precision components its inside, and is very expensive.
In fume continuous monitoring system, contain certain aqueous vapor in the sample gas, by condenser the aqueous vapor in the flue gas is condensed, sample gas after the process condenser is processed enters and carries out gas analysis and monitoring in the gas analyzer, but there is certain drawback in this way, if the condensation effect of condenser is bad, perhaps vapor content is excessive in the flue gas, through condensed sample gas contained aqueous vapor still higher words, when such sample gas enters gas analyzer, aqueous vapor can be condensed in gas analyzer inside, and as easy as rolling off a log measurement component to gas analyzer causes damage, and reduces the life-span of gas analyzer.
Summary of the invention
The embodiment of the invention provides a kind of sample gas supervising device and method, to solve in the sample gas aqueous vapor to the hurtful problem of gas analyzer.
The embodiment of the invention discloses following technical scheme:
A kind of sample gas supervising device comprises hygrometer and control module, wherein,
Described hygrometer comprises humidity sensor;
Described humidity sensor is used for gathering the humidity of the sample gas after condensation process, and obtains moisture signal;
The input end of described control module links to each other with the output terminal of humidity sensor, be used for the moisture signal that receives is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after transforming then carries out power down process to the sampling pump in the fume continuous monitoring system greater than the humidity threshold value.
Preferably, described control module also is used for, described sampling pump is carried out power down process after, if the humidity value after transforming drops to below the humidity threshold value, then described sampling pump is restored electricity.
Preferably, also comprise alarm unit:
The input end of described alarm unit links to each other with the output terminal of humidity sensor, be used for the moisture signal that receives is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after transforming then sends alerting signal greater than the humidity threshold value.
Preferably, also comprise Central Control Room:
Described Central Control Room links to each other with the alarm signal output ends of described alarm unit, is used for reporting to the police according to the alerting signal that receives.
Preferably, described Central Control Room links to each other with the humidity value output terminal of described alarm unit, also is used for the humidity value that receives after the conversion is shown.
Preferably, described control module is specially programmable logic controller (PLC) PLC, and corresponding, described hygrometer also comprises transmitter,
The input end of described transmitter links to each other with the output terminal of humidity sensor, and output terminal links to each other with the input end of PLC, is used for described moisture signal is converted into the standard industrial process signals pattern, and the described moisture signal that is converted into the standard industrial process signals pattern is sent to PLC.
Preferably, described alarm unit is specially dcs DCS, and corresponding, described hygrometer also comprises transmitter,
The input end of described transmitter links to each other with the output terminal of humidity sensor, and output terminal links to each other with DCS, is used for described moisture signal is converted into the standard industrial process signals pattern, and the described moisture signal that is converted into the standard industrial process signals pattern is sent to DCS.
A kind of sample gas method for supervising comprises:
The humidity of the sample gas of collection after condensation process obtains moisture signal;
Described moisture signal is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after the conversion then carries out power down process to the sampling pump in the fume continuous monitoring system greater than the humidity threshold value.
Preferably, also comprise:
After described sampling pump carried out power down process, if the humidity value after transforming drops to below the humidity threshold value, then described sampling pump is restored electricity.
Preferably, also comprise:
Humidity value after will transforming and predefined humidity threshold value are compared, if the humidity value after transforming greater than the humidity threshold value after, then send alerting signal.
Preferably, also comprise:
Report to the police according to described alerting signal.
Preferably, also comprise:
Humidity value after the described conversion is shown.
Preferably, the described humidity value that described moisture signal is converted into sample gas specifically comprises:
Described moisture signal is converted into the standard industrial process signals pattern;
The moisture signal of standard industrial process signals pattern is converted into the humidity value of sample gas.
As can be seen from the above-described embodiment, by in fume continuous monitoring system, adding hygrometer, effectively the aqueous vapor in the sample gas is carried out Real-Time Monitoring, protected gas analyzer to exempt from the infringement of the aqueous vapor in the sample gas, the life-span of the gas analyzer that greatly prolongs.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structure drawing of device of a kind of sample gas of the present invention supervising device;
Fig. 2 is another structure drawing of device of a kind of sample gas of the present invention supervising device;
Fig. 3 is another structure drawing of device of a kind of sample gas of the present invention supervising device;
Fig. 4 is another structure drawing of device of a kind of sample gas of the present invention supervising device;
Fig. 5 is the method flow diagram of a kind of sample gas of the present invention method for supervising;
Fig. 6 is another method flow diagram of a kind of sample gas of the present invention method for supervising.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Embodiment one
See also Fig. 1, it is the structure drawing of device of a kind of sample gas of the present invention supervising device, and this device comprises hygrometer 10 and control module 11:
Described hygrometer 10 comprises humidity sensor 101; Described humidity sensor 101 is used for gathering the humidity of the sample gas after condensation process, and obtains moisture signal.
Moisture signal herein can be realized Real-time Collection by periodicity or other modes, and the present invention does not do restriction to concrete acquisition mode, and collection period is not limited yet.
The input end of described control module 11 links to each other with the output terminal of humidity sensor 101, be used for the moisture signal that receives is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after transforming then carries out power down process to the sampling pump in the fume continuous monitoring system greater than the humidity threshold value.
Equally, control module can be realized in real time comparison by periodicity or alternate manner, and controls in real time according to the result of comparison.The cycle that the present invention compares in real time to control module does not limit, and is preferred, and the comparison cycle that control module is compared is identical with the collection period that humidity sensor adopts.
Preferably, described control module 11 also is used for, described sampling pump is carried out power down process after, if the humidity value after transforming drops to below the humidity threshold value, then described sampling pump is restored electricity.
Wherein, moisture signal is Real-time Collection, for the moisture signal that constantly gathers in some collections, when control module by the judgement to the humidity value of moisture signal, after sampling pump carried out power down process, if control module finds that by comparison the humidity value of the moisture signal of certain follow-up sampling instant collection drops to below the humidity threshold value again, then described sampling pump is restored electricity.
Embodiment two
The difference of this embodiment and embodiment one is, has further increased alarm unit.See also Fig. 2, it is another structure drawing of device of a kind of sample gas of the present invention supervising device, and this device comprises hygrometer 10, control module 11 and alarm unit 20:
Because described hygrometer 10 and control module 11 describe in detail in embodiment one, so locate to repeat no more.
The input end of described alarm unit 22 links to each other with the output terminal of humidity sensor 201, be used for the moisture signal that receives is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after transforming then sends alerting signal greater than the humidity threshold value.
Equally, alarm unit herein can be realized in real time comparison by periodicity or alternate manner, and reports to the police in real time according to the result of comparison.The cycle that the present invention compares in real time to control module does not limit, and is preferred, and the comparison cycle that alarm unit is compared is identical with the collection period that humidity sensor adopts.
Preferably, also comprise Central Control Room 21, described Central Control Room 21 links to each other with the alarm signal output ends of described alarm unit 20, is used for reporting to the police according to the alerting signal that receives.
Certainly, the present invention does not limit the mode of reporting to the police, and can adopt the audible alarm mode, can adopt the type of alarm of dazzling light yet, the mode that perhaps adopts both to combine.
Further preferred, described Central Control Room 21 links to each other with the humidity value output terminal of described alarm unit 20, also is used for the humidity value after the conversion that receives is shown.
The humidity value of Central Control Room after to the conversion that receives carries out real-time demonstration, better whole flue gas real-time monitoring system controlled to help the control personnel.
Certainly, the display format here can be any form of the prior art, and the present invention does not limit the concrete display format that adopts.
Embodiment three
The difference of this embodiment and embodiment one is, control module is further defined to PLC, and is corresponding, also comprises a transmitter in the hygrometer.See also Fig. 3, it is another structure drawing of device of a kind of sample gas of the present invention supervising device, and this device comprises hygrometer 10 and PLC (programmable logic controller (PLC)) 11 ':
Because the humidity sensor in the described hygrometer 10 describes in detail in embodiment one, so locate to repeat no more.
When described control module was specially PLC11 ', described PLC11 ' saw also the control module 11 among the embodiment one.Accordingly, described hygrometer 10 also comprises transmitter 102.
The input end of described transmitter 102 links to each other with the output terminal of humidity sensor 101, output terminal links to each other with the input end of PLC 11, be used for described moisture signal is converted into the standard industrial process signals pattern, and the described moisture signal that is converted into the standard industrial process signals pattern is sent to PLC 11 '.
Certainly, the present invention does not limit control module, except being the PLC, can be any device or the unit of the function that can realize that described control module is finished yet.
Preferably, also comprise Central Control Room 21, link to each other with the alarm signal output ends of described alarm unit 20, be used for reporting to the police according to the alerting signal that receives.
Further preferred, described Central Control Room 21 links to each other with the humidity value output terminal of described alarm unit 20, also is used for the humidity value after the conversion that receives is shown.
What need to further specify is that the standard industrial process signals pattern here is specially the standard industrial process signals pattern of 4-20Ma.
Embodiment four
The difference of this embodiment and embodiment two is, alarm unit is further defined to DCS, and is corresponding, also comprises a transmitter in the hygrometer.See also Fig. 4, it is another structure drawing of device of a kind of sample gas of the present invention supervising device, and this device comprises hygrometer 10, control module 11, DCS (dcs) 20 ':
Because described hygrometer 10 and control module 11 describe in detail among in front the embodiment, so locate to repeat no more.
When alarm unit 20 was specially DCS20 ', described DCS20 ' saw also the alarm unit 20 among the embodiment two.
Certainly, the present invention does not limit alarm unit, can be DCS, can be any device or the unit of the function that can realize that described alarm unit is finished yet.
Preferably, also comprise Central Control Room 21, link to each other with the alarm signal output ends of described DCS20 ', be used for reporting to the police according to the alerting signal that receives.
Further preferred, described Central Control Room 21 links to each other with the humidity value output terminal of described DCS20 ', also is used for the humidity value after the conversion that receives is shown.
Accordingly, described hygrometer 10 also comprises transmitter 102.
The input end of described transmitter 102 links to each other with the output terminal of humidity sensor 101, output terminal links to each other with DCS20, be used for described moisture signal is converted into the standard industrial process signals pattern, and the described moisture signal that is converted into the standard industrial process signals pattern is sent to DCS20.
Embodiment five
See also Fig. 5, it comprises for the method flow diagram of a kind of sample gas of the present invention method for supervising:
S501: gather the humidity of the sample gas after condensation process, obtain moisture signal.
S502: described moisture signal is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared.
S503: if the humidity value after transforming then carries out power down process to the sampling pump in the fume continuous monitoring system greater than default humidity threshold value.
Further preferred, after described sampling pump is carried out power down process, if the humidity value after transforming drops to below the humidity threshold value, then described sampling pump is restored electricity.
Preferably, the described humidity value that described moisture signal is converted into sample gas specifically comprises, described moisture signal is converted into the standard industrial process signals pattern, the moisture signal of standard industrial process signals pattern is converted into the humidity value of sample gas.
Embodiment six
See also Fig. 6, it comprises for another method flow diagram of a kind of sample gas of the present invention method for supervising:
S601 and S603 see also S501 and the S503 among the embodiment five.
S604: if the humidity value after transforming greater than the humidity threshold value after, then send alerting signal.
S605: report to the police and the humidity value after the described conversion is shown according to the described alerting signal that receives.
All after S602 carried out the humidity value comparison, so extremely advanced row power down process still sends first alerting signal, the present invention did not limit this, both can carry out simultaneously, can be successively to carry out yet for described S603 and S604.
As can be seen from the above-described embodiment, by in fume continuous monitoring system, adding hygrometer, effectively the aqueous vapor in the sample gas is carried out Real-Time Monitoring, protected gas analyzer to exempt from the infringement of the aqueous vapor in the sample gas, the life-span of the gas analyzer that greatly prolongs.
Need to prove, one of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, to come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random AccessMemory, RAM) etc. at random.
More than to a kind of sample gas supervising device provided by the present invention and method row detailed introduction, used specific embodiment herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. a sample gas supervising device is characterized by, and comprises hygrometer and control module, wherein,
Described hygrometer comprises humidity sensor;
Described humidity sensor is used for gathering the humidity of the sample gas after condensation process, and obtains moisture signal;
The input end of described control module links to each other with the output terminal of humidity sensor, be used for the moisture signal that receives is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after transforming then carries out power down process to the sampling pump in the fume continuous monitoring system greater than the humidity threshold value.
2. device according to claim 1 is characterized by, and described control module also is used for, described sampling pump is carried out power down process after, if the humidity value after transforming drops to below the humidity threshold value, then described sampling pump is restored electricity.
3. device according to claim 1 is characterized by, and also comprises alarm unit:
The input end of described alarm unit links to each other with the output terminal of humidity sensor, be used for the moisture signal that receives is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after transforming then sends alerting signal greater than the humidity threshold value.
4. device according to claim 3 is characterized by, and also comprises Central Control Room:
Described Central Control Room links to each other with the alarm signal output ends of described alarm unit, is used for reporting to the police according to the alerting signal that receives.
5. device according to claim 4 is characterized by, and described Central Control Room links to each other with the humidity value output terminal of described alarm unit, also is used for the humidity value that receives after the conversion is shown.
6. the described device of any one is characterized by according to claim 1-5, and described control module is specially programmable logic controller (PLC) PLC, and corresponding, described hygrometer also comprises transmitter,
The input end of described transmitter links to each other with the output terminal of humidity sensor, and output terminal links to each other with the input end of PLC, is used for described moisture signal is converted into the standard industrial process signals pattern, and the described moisture signal that is converted into the standard industrial process signals pattern is sent to PLC.
7. the described device of any one is characterized by according to claim 3-5, and described alarm unit is specially dcs DCS, and corresponding, described hygrometer also comprises transmitter,
The input end of described transmitter links to each other with the output terminal of humidity sensor, and output terminal links to each other with DCS, is used for described moisture signal is converted into the standard industrial process signals pattern, and the described moisture signal that is converted into the standard industrial process signals pattern is sent to DCS.
8. a sample gas method for supervising is characterized by, and comprising:
The humidity of the sample gas of collection after condensation process obtains moisture signal;
Described moisture signal is converted into the humidity value of sample gas, humidity value and predefined humidity threshold value after transforming are compared, if the humidity value after the conversion then carries out power down process to the sampling pump in the fume continuous monitoring system greater than the humidity threshold value.
9. method according to claim 8 is characterized by, and also comprises:
After described sampling pump carried out power down process, if the humidity value after transforming drops to below the humidity threshold value, then described sampling pump is restored electricity.
10. method according to claim 8 is characterized by, and also comprises:
Humidity value after will transforming and predefined humidity threshold value are compared, if the humidity value after transforming greater than the humidity threshold value after, then send alerting signal.
11. method according to claim 10 is characterized by, and also comprises:
Report to the police according to described alerting signal.
12. method according to claim 11 is characterized by, and also comprises:
Humidity value after the described conversion is shown.
13. the described method of any one is characterized by according to claim 8-12, the described humidity value that described moisture signal is converted into sample gas specifically comprises:
Described moisture signal is converted into the standard industrial process signals pattern;
The moisture signal of standard industrial process signals pattern is converted into the humidity value of sample gas.
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| CN2013100071958A CN103048430A (en) | 2013-01-08 | 2013-01-08 | Device and method for monitoring sample gas |
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| CN2013100071958A CN103048430A (en) | 2013-01-08 | 2013-01-08 | Device and method for monitoring sample gas |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106017957A (en) * | 2016-05-26 | 2016-10-12 | 天邦膜技术国家工程研究中心有限责任公司 | A water-soluble gas helium dehydration unit evaluation system |
| CN107561222A (en) * | 2017-09-30 | 2018-01-09 | 浙江力聚热水机有限公司 | A kind of flue gas analysis device |
| DE102015222312B4 (en) * | 2015-11-12 | 2019-07-04 | Robert Bosch Gmbh | Apparatus and method for gas and particle measurement |
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| CN200979173Y (en) * | 2006-10-10 | 2007-11-21 | 江南大学 | Flue gas pretreatment apparatus |
| CN202256297U (en) * | 2011-09-22 | 2012-05-30 | 北京雪迪龙科技股份有限公司 | Environmental air quality monitoring system |
| CN102564986A (en) * | 2011-12-30 | 2012-07-11 | 北京雪迪龙科技股份有限公司 | Smoke mercury emission monitoring system and method |
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2013
- 2013-01-08 CN CN2013100071958A patent/CN103048430A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200979173Y (en) * | 2006-10-10 | 2007-11-21 | 江南大学 | Flue gas pretreatment apparatus |
| CN202256297U (en) * | 2011-09-22 | 2012-05-30 | 北京雪迪龙科技股份有限公司 | Environmental air quality monitoring system |
| CN102564986A (en) * | 2011-12-30 | 2012-07-11 | 北京雪迪龙科技股份有限公司 | Smoke mercury emission monitoring system and method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102015222312B4 (en) * | 2015-11-12 | 2019-07-04 | Robert Bosch Gmbh | Apparatus and method for gas and particle measurement |
| CN106017957A (en) * | 2016-05-26 | 2016-10-12 | 天邦膜技术国家工程研究中心有限责任公司 | A water-soluble gas helium dehydration unit evaluation system |
| CN107561222A (en) * | 2017-09-30 | 2018-01-09 | 浙江力聚热水机有限公司 | A kind of flue gas analysis device |
| CN107561222B (en) * | 2017-09-30 | 2024-04-19 | 浙江力聚热能装备股份有限公司 | Flue gas analysis device |
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Application publication date: 20130417 |