CN102600741B - Low-concentration multi-component standard gas generating device for evaluating performance of air flue purifying component - Google Patents
Low-concentration multi-component standard gas generating device for evaluating performance of air flue purifying component Download PDFInfo
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- CN102600741B CN102600741B CN201210074711.4A CN201210074711A CN102600741B CN 102600741 B CN102600741 B CN 102600741B CN 201210074711 A CN201210074711 A CN 201210074711A CN 102600741 B CN102600741 B CN 102600741B
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- 239000007788 liquid Substances 0.000 claims abstract description 29
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 19
- 238000011109 contamination Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 63
- 238000007664 blowing Methods 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 description 8
- 231100000719 pollutant Toxicity 0.000 description 8
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
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- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention relates to a low-concentration multi-component gas dynamic generating device for evaluating performance of an engineering air flue purifying component and belongs to the field of standard gas generating. In the dynamic generating device, an outlet of a pollution gas source is connected with a gas collecting tube through a pipeline; a flow controller is arranged on a connecting pipeline of the pollution gas source and the gas collecting tube; a thermometer is arranged in the gas collecting tube; the outlet of a centrifugal fan is connected with an inlet of a heater through the pipeline; the outlet of the heater is connected with the gas collecting tube through the pipeline; a temperature controller is arranged on the connecting pipeline of the heater and the gas collecting tube; the temperature controller is connected with the thermometer in the gas collecting tube; the outlet of a liquid peristaltic pump is connected with the gas collecting tube through the pipeline; the pipeline for connecting the liquid peristaltic pump with the gas collecting tube is inserted into the gas collecting tube; and a capillary sprayer is arranged at the end of the pipeline inserted into the gas collecting tube. The dynamic generating device can generate various standard gases with the concentration of 0.01-10mg/m3 in an engineering air flue at a blowing rate of 300-100,000m3/h.
Description
Technical field
The present invention relates to a kind of air duct cleaning component capabilities test and appraisal low concentration multicomponent standard gas generating apparatus, belong to calibrating gas field occurs.
Background technology
Indoor air quality significantly affects people's comfortable, health and operating efficiency, more and more receives people's concern.And organic volatile compound (VOCs) excessive concentration that indoor article and decoration material discharge is the one of the main reasons that causes indoor air quality inferior.For guaranteeing the indoor environment of safety and comfort, in the air channel of many central air-conditioning systems, all installed air-purifying module additional, to remove these noxious pollutants.Therefore the demand that detects these air-purifying module performances is day by day urgent.General detection method is that the difference of monitoring air-purifying module import and exit concentration is assessed its purifying property.Wherein how difficult point is in the engineering air channel of Wind Volume the calibrating gas of constant generation multicomponent low concentration simultaneously.
Because the air quantity span in engineering pipeline is larger, from hundreds of per hour to hundreds thousand of cubic meter not etc., for maintaining the air duct cleaning parts 0.01～10mg/m of import department
3low concentration pollutant level, the injection rate of the pollutant that requires is very large, is about 0.02mg/min～20g/min.Therefore it is also inapplicable that tradition adopts the mode of gas bottle generation steady concentration.
Summary of the invention
The object of the invention is to propose a kind of air duct cleaning component capabilities test and appraisal low concentration multicomponent standard gas generating apparatus, adopt liquid peristaltic pump cheap, that precision is high, to produce 0.01～10mg/m
3the low concentration multicomponent calibrating gas of concentration range, meets the use in Wind Volume engineering air channel.
The low concentration multicomponent standard gas generating apparatus for the test and appraisal of air duct cleaning component capabilities that the present invention proposes, comprise contamination gas body source, liquid peristaltic pump, centrifugal blower, discharge, thermometer and capillary shower nozzle, the outlet of described contamination gas body source is connected with discharge by pipeline, and the connecting pipe of contamination gas body source and discharge is provided with flow controller; Described thermometer is placed in discharge, the outlet of described centrifugal blower is connected with the import of heater by pipeline, the outlet of heater is connected with discharge by pipeline, the connecting pipe of heater and discharge is provided with temperature controller, and temperature controller is connected with the thermometer in discharge; Described liquid wriggling delivery side of pump is connected with discharge by pipeline, and the pipeline that connects liquid peristaltic pump and discharge stretches in discharge, and the pipe end that stretches into discharge is provided with capillary shower nozzle; The outlet of discharge is the outlet of multicomponent light concentration gas.
The low concentration multicomponent standard gas generating apparatus for the test and appraisal of air duct cleaning component capabilities that the present invention proposes, its advantage is:
Gas generating unit of the present invention, the characteristic that can mutually dissolve each other according to indoor organic pollutant, the mode of employing liquid peristaltic pump, simply, accurately realizes the proportioning of Some Organic Pollutants, and by capillary shower nozzle, injects air distribution system by liquid peristaltic pump.In apparatus of the present invention, adopt heater, make discharge temperature keep high temperature, to adapt to the feature that main air duct air-flow is large, make filling liquid in the gas collector of air distribution system, evaporate into rapidly gas.Liquid peristaltic pump can be controlled different liquid charge velocities by control program able to programme, in experimentation, changes at any time, thereby realize, according to the multicomponent calibrating gas of experimental result rapid adjustment variable concentrations, be distribution.Gas-dynamic mode device of the present invention, can throw in speed is the multicomponent calibrating gas of 0.01mg/min～20g/min simultaneously, can be 300～100000m at air quantity
3it is 0.01～10mg/m that concentration occurs in the engineering air channel of/h
3multicomponent calibrating gas, so apparatus of the present invention purify a plurality of fields such as test and appraisal and environmental protection applicable to engineering.
Accompanying drawing explanation
Fig. 1 is that the air duct cleaning component capabilities that the present invention proposes is tested and assessed with the structural representation of low concentration multicomponent standard gas generating apparatus.
Fig. 2 is structural representation capillaceous used in gas generating unit of the present invention.
In Fig. 1, the 1st, centrifugal blower, the 2nd, heater, the 3rd, discharge, the 4th, temperature controller, the 5th, thermometer, the 6th, the outlet of low concentration multicomponent calibrating gas, the 7th, contamination gas body source, the 8th, flow controller, the 9th, liquid peristaltic pump, the 10th, capillary shower nozzle.
The specific embodiment
The low concentration multicomponent standard gas generating apparatus for the test and appraisal of air duct cleaning component capabilities that the present invention proposes, its structure as shown in Figure 1, comprises contamination gas body source 7, liquid peristaltic pump 9, centrifugal blower 1, discharge 3, thermometer 5 and capillary shower nozzle 10.The outlet of contamination gas body source 7 is connected with discharge 3 by pipeline, and contamination gas body source 1 is provided with flow controller 8 with the connecting pipe of discharge 3.Thermometer 5 is placed in discharge 3, the outlet of centrifugal blower 1 is connected with the import of heater 2 by pipeline, the outlet of heater 2 is connected with discharge 3 by pipeline, heater 2 is provided with temperature controller 4 with the connecting pipe of discharge 3, and temperature controller 4 is connected with the thermometer 5 in discharge 3.The outlet of liquid peristaltic pump 9 is connected with discharge 3 by pipeline, connects liquid peristaltic pump 9 and stretches in discharge 3 with the pipeline of discharge 3, and the pipe end that stretches into discharge is provided with capillary shower nozzle 10.The outlet of discharge 3 is the outlet of low concentration multicomponent calibrating gas.
Gas generating unit of the present invention comprises main air duct system, gas injection system and three parts of liquid injection system.Main air duct system is comprised of centrifugal blower 1, heater 2, thermometer 5, temperature controller 4 and discharge 3.Gas injection system is the pollutant of gas for occurring under normal temperature, as hydrogen sulfide, ammonia etc., contamination gas body source 7 (being generally flow container) and flow controller 8, consists of.Liquid injection system is for to occur under normal temperature be the pollutant of liquid, as indoor common most of VOC: toluene, benzene, dimethylbenzene, formaldehyde, acetaldehyde, acetone etc.Liquid peristaltic pump is by the controlled discharge 3 of multiple pollutant mixed solution process capillary shower nozzle 10 implantation temperatures, and evaporate into fast gas, then the air-flow producing with main air duct system and gas injection system mixes, flow out again gas collector, and importing in engineering air channel, thereby the multicomponent calibrating gas of acquisition desired concn.
In apparatus of the present invention, can adopt capillary shower nozzle as shown in Figure 2, one end diameter of capillary shower nozzle is larger, and the diameter of the other end is less, and this is atomized compared with small end ejection from the diameter of capillary shower nozzle from the gases at high pressure of liquid peristaltic pump with regard to making.
In an embodiment of apparatus of the present invention, the temperature controller using can be to be by the production of Yuyao Gong Ling company, model: the product of XTD-7000, the flow controller using can be to be by Alicat Science production, model: the product of M-10SCCM-D, the liquid peristaltic pump of use can be that Longer company produces, model is: the product of BT100-2J.
Air duct cleaning component capabilities test and appraisal of the present invention are as follows by the course of work of low concentration multicomponent standard gas generating apparatus:
In main air duct system, air flows out from centrifugal blower 1, by heater 2, air themperature is raise, then enter discharge 3, in discharge, have temperature controller 4 and thermometer 5 for the heat that adds of FEEDBACK CONTROL heater 2, to keep the interior temperature of discharge 3 to remain on 65 ± 0.5 ℃.Main air duct air quantity is 20m
3/ h, for accelerating, injecting gas or liquid mixes or volatilizees.
In gas injection system, dusty gas flows out from contamination gas body source 7, by mass flow controller 8, flows in gas collector 3.This system is for generation of being the pollutant of gaseous state under the normal temperature of constant density.Fluid contaminants is passed through liquid peristaltic pump 9 under the effect of capillary shower nozzle 10, form with fine spray is injected discharge 3, because the interior temperature of discharge 3 keeps 65 ℃, and in main air duct, wind speed is larger, and being sprayed at of spraying evaporates into rapidly gas under High Temperature And Velocity effect.Liquid peristaltic pump can be controlled different liquid charge velocities by control program able to programme, can in experimentation, change at any time, thereby realize according to the generation of experimental result rapid adjustment variable concentrations.By changing different wriggling sebific ducts, can realize pollutant input speed range is 0.01mg/min～20g/min, can be 300～100000m at air quantity
3it is 0.01～10mg/m that concentration occurs in the engineering air channel of/h
3multiple gases.
Gas generating unit of the present invention can be 300～100000m at air quantity
3it is 0.01～10mg/m that concentration occurs in the engineering air channel of/h
3multicomponent calibrating gas, comprise that under the normal temperature such as hydrogen sulfide, ammonia be the material of gaseous state, and be the material of liquid under the normal temperature such as toluene, benzene, dimethylbenzene, formaldehyde, acetaldehyde, acetone.
Claims (1)
1. an air duct cleaning component capabilities is tested and assessed with the dynamic generating means of multicomponent light concentration gas, it is characterized in that this gas-dynamic generating means comprises contamination gas body source, liquid peristaltic pump, centrifugal blower, discharge, thermometer and capillary shower nozzle, the outlet of described contamination gas body source is connected with discharge by pipeline, and the connecting pipe of contamination gas body source and discharge is provided with flow controller; Described thermometer is placed in discharge, the outlet of described centrifugal blower is connected with the import of heater by pipeline, the outlet of heater is connected with discharge by pipeline, the connecting pipe of heater and discharge is provided with temperature controller, and temperature controller is connected with the thermometer in discharge; Described liquid wriggling delivery side of pump is connected with discharge by pipeline, and the pipeline that connects liquid peristaltic pump and discharge stretches in discharge, and the pipe end that stretches into discharge is provided with capillary shower nozzle; The outlet of discharge is the outlet of multicomponent calibrating gas.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210074711.4A CN102600741B (en) | 2012-03-20 | 2012-03-20 | Low-concentration multi-component standard gas generating device for evaluating performance of air flue purifying component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210074711.4A CN102600741B (en) | 2012-03-20 | 2012-03-20 | Low-concentration multi-component standard gas generating device for evaluating performance of air flue purifying component |
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| CN102600741B true CN102600741B (en) | 2014-03-12 |
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| CN105664510A (en) * | 2016-02-26 | 2016-06-15 | 天津大学建筑设计研究院 | Evaporation chamber of gaseous organic pollutant generator |
| CN106018622A (en) * | 2016-07-12 | 2016-10-12 | 中国石油化工股份有限公司 | Testing device and method for analyzing performance of organic gas treating system |
| CN110237710A (en) * | 2019-07-23 | 2019-09-17 | 广东工业大学 | A kind of laboratory organic exhaust gas degeneration system and its application |
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2012
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Non-Patent Citations (2)
| Title |
|---|
| 《吸附材料净化室内VOC性能评价研究》;徐秋健等;《工程热物理学报》;20110228;第311页第1段，第312页右栏第1-4段，图1 * |
| 徐秋健等.《吸附材料净化室内VOC性能评价研究》.《工程热物理学报》.2011, |
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Effective date of registration: 20191224 Address after: 100015 room 1070, floor 1, building 5, yard 5, Jiangtai Road, Chaoyang District, Beijing Patentee after: Beijing Yunhe health human settlements Technology Co., Ltd Address before: 100084 Haidian District Tsinghua Yuan Beijing No. 1 Patentee before: Tsinghua University |
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