CN105664510A - Evaporation chamber of gaseous organic pollutant generator - Google Patents
Evaporation chamber of gaseous organic pollutant generator Download PDFInfo
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- CN105664510A CN105664510A CN201610103975.6A CN201610103975A CN105664510A CN 105664510 A CN105664510 A CN 105664510A CN 201610103975 A CN201610103975 A CN 201610103975A CN 105664510 A CN105664510 A CN 105664510A
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- vaporization chamber
- gaseous organic
- organic pollutant
- evaporation chamber
- capillary
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01B—BOILING; BOILING APPARATUS ; EVAPORATION; EVAPORATION APPARATUS
- B01B1/00—Boiling; Boiling apparatus for physical or chemical purposes ; Evaporation in general
- B01B1/005—Evaporation for physical or chemical purposes; Evaporation apparatus therefor, e.g. evaporation of liquids for gas phase reactions
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses an evaporation chamber of a gaseous organic pollutant generator. The evaporation chamber comprises an evaporation chamber cavity, wherein a compressed air inlet and a gaseous organic outlet are respectively formed in the left side and the right side of the evaporation chamber cavity; an electric heating layer and a thermal-insulation layer are sequentially arranged on the outer layer of the evaporation chamber cavity; a capillary gasification pipe and a thermocouple are arranged on the evaporation chamber cavity; a liquid pollutant inlet is formed in the upper end of the capillary gasification pipe. According to the evaporation chamber of the gaseous organic pollutant generator, disclosed by the invention, as liquid mainly evaporates in the capillary gasification pipe, even if the flow is small, the liquid can stably flow and is heated in the capillary gasification pipe, and the problems that the liquid can drop into the evaporation chamber only after being accumulated to a certain volume and the instability is caused by heating and gasification in the evaporation chamber are solved; when trace amount of gaseous pollutants are generated, the evaporation chamber has significant advantages.
Description
Technical field
The vaporization chamber that the present invention relates to a kind of gaseous contaminant generator for air cleaner Performance Detection, is specially availableIn road vehicle cleaner, the multiple air cleaner performance test such as air cleaner and indoor air filter system in building air conditioningIn system, the generation of multiple gaseous chemical pollutant.
Background technology
Along with China's expanding economy, the problem of atmosphere pollution also highlights day by day, is subject to increasing attention. In recent years, skyGas purifier sales volume speedup is obvious. 2011 according to statistics, approximately 2,200,000 of China's air purifier sales volumes, reached for 20135650000, expect 2017, will reach more than 1,400 ten thousand. In addition, China's automobile pollution is also increasing sharply,Ended for the year ends 2011, China individual has vehicle and amounts to 7326.77 ten thousand, is 7.5 times more than in 2002, over 10 years with25% annual compound growth rate increases. In modern society, people rest in building or the vehicles, therefore the most of the timeIts air quality also more and more receives the public's concern.
Play GB GB/T27630-2011 " Air Quality Evaluation guide in passenger car " in March, 2012 and come into effect this standardIn specified benzene in air (≤0.11mg/m in car3), toluene (≤1.10mg/m3), dimethylbenzene (≤1.50mg/m3), ethylbenzene(≤1.50mg/m3), styrene (≤0.26mg/m3), formaldehyde (≤0.10mg/m3), acetaldehyde (≤0.05mg/m3), methacrylaldehyde (≤0.05mg/m3) concentration requirement. The GB GB3095-2012 " ambient air quality " that come into effect in January, 2016,Except standard before, with regard to existing benzene homologues, aldehydes etc., has also increased ozone concentration standard, and has adjusted part gaseous contaminantConcentration standard and the validity regulation of data statistics, require more strict.
No matter be to build in interior or the vehicles, benzene homologues and aldehydes are all important pollutants, serious harm health.Benzene is strong carcinogen, can be at liver and marrow intracellular metabolite, and Long Term Contact can cause marrow and genetic damage; Toluene can stimulate exhalesInhale road and eyes, cause nausea, headache, the symptom such as uncomfortable in chest, suck for a long time toluene and can cause the symptoms such as neurasthenia; DimethylbenzeneCan enter human body through respiratory tract and skin, can suppress nervous centralis, excessive or Long Term Contact can cause ataxia, sense organ mistakeThe off one's dot behavior such as unrest and hypomnesia; Formaldehyde is chafe, eyes and respiratory tract not only, causes headache, cough etc.,More there is very strong mutagenesis, cause canceration and leukaemia etc., life threatening.
But, compare increasing of filter sales volume, the quality of filter is but very different. Most filters have for particleGoodish filter effect, but often lack the data to gaseous organic substance filter effect. For detection of particle filtering effectNo matter powder producer, be technology or product, all quite ripe, but gaseous organic substance generator data is still quite limited. ?In ZL2013205298342, adopted constant flow pump control fluid contaminants flow, then with air atomizer spray nozzle by fluid contaminantsAtomization, then adopts the heating of silica gel heating band, makes the fluid contaminants vaporization after atomization. While using air atomizer spray nozzle,The atomizing effect of nozzle has certain requirement to air mass flow and fluid flow, atomization when the less or liquid viscosity of fluid flow is largerEffect is poor, and pollutant generation concentration is unstable. In ZL2014204310892, adopt identical occurring principle, but steamedSending out chamber is U-shaped quartz glass tube, and at fluid contaminants flow hour, pollutant generation stability increases this vaporization chamber,But along with fluid flow reduces, stability obviously declines.
Summary of the invention
In order to solve problems of the prior art, the invention provides a kind of vaporization chamber of gaseous organic pollutant generator, gramTake the unsettled problem of pollutant generation concentration in prior art.
Technical scheme of the present invention is: a kind of vaporization chamber of gaseous organic pollutant generator, comprises vaporization chamber cavity, described steamingSend out the chamber body left and right sides and be respectively equipped with compressed air inlet and gaseous contaminant outlet, vaporization chamber cavity skin is provided with successively electricity and addsThermosphere and heat-insulation layer, be also provided with capillary vapor lamp and thermocouple on vaporization chamber cavity, described capillary vapor lamp upper end is provided with liquid dirtyDye thing entrance.
Described vaporization chamber cavity and capillary vapor lamp, all adopt 316 stainless steels to make.
Described vaporization chamber cavity internal diameter 30-50mm, wall thickness 2-3mm.
Described capillary vapor lamp internal diameter 1-2mm, wall thickness 0.3-0.5mm, the horizontal section length 30-70mm of capillary vapor lamp is tightBe attached to vaporization chamber inwall, and spot welding is fixed.
In described capillary vapor lamp, fluid contaminants is benzene homologues and the aldehydes aqueous solution of flow 0.15-1.5ml/min, liquid usedPurity is not less than chemical pure.
Described compressed air pressure is 1.2-1.3bar, and flow is 0.5-0.8m3/h。
Described electric heating layer heating-up temperature is set to 120-140 DEG C. When fluid contaminants used is benzene, toluene, and generating capacity is lessTime, described electric heating layer design temperature is 120-130 DEG C; When fluid contaminants used is dimethylbenzene and formalin, or liquid is usedMeasure when larger electric heating layer design temperature 130-140 DEG C.
Beneficial effect of the present invention is: vaporization chamber cavity and capillary evaporation pipe, all adopt 316 stainless steels to make, to avoid orderMark pollutant pollutes. Vaporization chamber cavity internal diameter 30-50mm, wall thickness 2-3mm, ensures moderate rate of heat transfer and thermal inertia.Capillary evaporation bore 1-2mm, wall thickness 0.3-0.5mm, ensures moderate mechanical strength and rate of heat transfer faster. Capillary is steamedThe horizontal section length 30-70mm that sends out pipe, be close to vaporization chamber inwall, and spot welding is fixed. Because liquid is mainly in capillaryEvaporation, even if flow is very little, also can be reposefully in flow in capillary tube and be heated, do not exist and need to accumulate ability after certain volumeSplash into vaporization chamber, then the generation instability problem that gasifies and cause that is heated, in the time there is micro-gaseous contaminant, with the obvious advantage.
Brief description of the drawings
Fig. 1 is the vaporization chamber structural representation of gaseous organic pollutant generator of the present invention;
Wherein: 1-compressed air inlet; 2-fluid contaminants entrance; 3-capillary vapor lamp; 4-heat-insulation layer; 5-electric heating layer; 6-Vaporization chamber cavity; 7-thermocouple; The outlet of 8-gaseous contaminant.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
The vaporization chamber of gaseous organic pollutant generator of the present invention, comprises vaporization chamber cavity, the described vaporization chamber cavity left and right sidesBe respectively equipped with compressed air inlet and gaseous contaminant outlet, vaporization chamber cavity skin is provided with electric heating layer and heat-insulation layer successively, steamsSend out on chamber body and be also provided with capillary vapor lamp and thermocouple, described capillary vapor lamp upper end is provided with fluid contaminants entrance.
Vaporization chamber cavity internal diameter 30-50mm, wall thickness 2-3mm; Capillary vapor lamp internal diameter 1-2mm, wall thickness 0.3-0.5mm, all adoptsWith 316 stainless steels making. The horizontal section length 30-70mm of capillary vapor lamp capillary vapor lamp, is close to vaporization chamber inwall, andSpot welding is fixed.
When work, by electric heating layer, vaporization chamber is heated, and measure (and control) by thermocouple (and temperature controller)The temperature of vaporization chamber. The compressed air of certain pressure, flow enters vaporization chamber by gas access, forms the main gas in vaporization chamberStream. The fluid contaminants of certain flow is sent into the capillary evaporation pipe of vaporization chamber by liquid inlet, in the time that amount of liquid is little, and canDirectly evaporation in evaporation tube. If fluid flow is larger, in the time of staying in capillary evaporation pipe, can not be gasified totally, flow outAfter the partially liq contact vaporization chamber inwall of evaporation tube, can be gasified totally. After gasification, mix with compressed air, flow out and steam with air-flowSend out chamber, send into the detection system of air cleaner.
It is water-soluble that this vaporization chamber is applicable to benzene homologues and aldehydes that the interior fluid contaminants of capillary vapor lamp is flow 0.15-1.5ml/minLiquid, owing to having used capillary evaporation pipe, purity liquid used is not less than chemical pure.
Compressed air pressure is 1.2-1.3bar, keeps stable; Flow is 0.5-0.8m3/ h, can enter according to pollutant generating capacityRow is adjusted, and keeps stable.
Electric heating layer heating-up temperature is set to 120-140 DEG C, and adjusts according to pollutant kind and generating capacity. When liquid usedState pollutant is benzene, toluene, and generating capacity hour, and described electric heating layer design temperature is 120-130 DEG C; When liquid state usedPollutant is dimethylbenzene and formalin, or volume is when larger, electric heating layer design temperature 130-140 DEG C.
This vaporization chamber also can be used the generation of the organic pollution close with benzene homologues physicochemical property, but be not suitable for viscosity excessive,The larger molecular organics that maybe can not be gasified totally.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art,Under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as thisBright protection domain.
Claims (8)
1. a vaporization chamber for gaseous organic pollutant generator, comprises vaporization chamber cavity, it is characterized in that, a described vaporization chamber cavity left sideRight both sides are respectively equipped with compressed air inlet and pollutant outlet, and vaporization chamber cavity skin is provided with electric heating layer and insulation successivelyLayer, is also provided with capillary vapor lamp and thermocouple on vaporization chamber cavity, described capillary vapor lamp upper end is provided with fluid contaminants entrance.
2. the vaporization chamber of gaseous organic pollutant generator according to claim 1, is characterized in that, described vaporization chamber cavity and hairThin vapor lamp, all adopts 316 stainless steels to make.
3. the vaporization chamber of gaseous organic pollutant generator according to claim 1, is characterized in that described vaporization chamber cavity internal diameter30-50mm, wall thickness 2-3mm.
4. the vaporization chamber of gaseous organic pollutant generator according to claim 1, is characterized in that described capillary vapor lamp internal diameter1-2mm, wall thickness 0.3-0.5mm, the horizontal section length 30-70mm of capillary vapor lamp, is close to vaporization chamber inwall, and pointSolid welding is fixed.
5. the vaporization chamber of gaseous organic pollutant generator according to claim 1, is characterized in that, described capillary gasification intraluminal fluidState pollutant is benzene homologues and the aldehydes aqueous solution of flow 0.15-1.5ml/min, and purity liquid used is not less than chemical pure.
6. the vaporization chamber of gaseous organic pollutant generator according to claim 1, is characterized in that, described compressed air pressure is1.2-1.3bar, flow is 0.5-0.8m3/h。
7. the vaporization chamber of gaseous organic pollutant generator according to claim 1, is characterized in that, described electric heating layer adds hot temperatureDegree is set to 120-140 DEG C.
8. the vaporization chamber of gaseous organic pollutant generator according to claim 7, is characterized in that, when fluid contaminants used isBenzene, toluene, and generating capacity is hour, and described electric heating layer design temperature is 120-130 DEG C; When fluid contaminants used isDimethylbenzene and formalin, or volume is when larger, electric heating layer design temperature 130-140 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610103975.6A CN105664510A (en) | 2016-02-26 | 2016-02-26 | Evaporation chamber of gaseous organic pollutant generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610103975.6A CN105664510A (en) | 2016-02-26 | 2016-02-26 | Evaporation chamber of gaseous organic pollutant generator |
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| CN105664510A true CN105664510A (en) | 2016-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108392844A (en) * | 2018-04-19 | 2018-08-14 | 苏州阿洛斯环境发生器有限公司 | A kind of solid particulate matter method for generation and generator |
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| CN203502232U (en) * | 2013-08-28 | 2014-03-26 | 天津大学 | Gaseous pollutant generating device for detection of air filter |
| CN104155132A (en) * | 2014-07-30 | 2014-11-19 | 天津大学 | Gaseous organic pollutant generator used for air filter testing system |
| CN204017400U (en) * | 2014-06-20 | 2014-12-17 | 天津金海兴业科技有限公司 | A kind of gasification system with benzene atomization self-loopa heater |
| CN204116063U (en) * | 2014-07-30 | 2015-01-21 | 天津大学 | A kind of gaseous organic pollutant generator for air strainer test macro |
| CN205228834U (en) * | 2015-12-17 | 2016-05-11 | 天津大学 | Trace gaseous state organic matter generating device |
| CN205386345U (en) * | 2016-02-26 | 2016-07-20 | 天津大学建筑设计研究院 | Evaporating chamber of gaseous state organic pollutant generator |
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2016
- 2016-02-26 CN CN201610103975.6A patent/CN105664510A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011089209A3 (en) * | 2010-01-22 | 2011-09-15 | Basf Se | Single-chamber evaporator and the use thereof in chemical synthesis |
| CN102600741A (en) * | 2012-03-20 | 2012-07-25 | 清华大学 | Low-concentration multi-component standard gas generating device for evaluating performance of air flue purifying component |
| CN102614803A (en) * | 2012-03-20 | 2012-08-01 | 清华大学 | Dynamic generator for multicomponent low-concentration standard gas |
| CN103411779A (en) * | 2013-08-28 | 2013-11-27 | 天津大学 | Gas-state pollutant generating device and method for detecting performance of air purifier |
| CN203502232U (en) * | 2013-08-28 | 2014-03-26 | 天津大学 | Gaseous pollutant generating device for detection of air filter |
| CN204017400U (en) * | 2014-06-20 | 2014-12-17 | 天津金海兴业科技有限公司 | A kind of gasification system with benzene atomization self-loopa heater |
| CN104155132A (en) * | 2014-07-30 | 2014-11-19 | 天津大学 | Gaseous organic pollutant generator used for air filter testing system |
| CN204116063U (en) * | 2014-07-30 | 2015-01-21 | 天津大学 | A kind of gaseous organic pollutant generator for air strainer test macro |
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| CN108392844A (en) * | 2018-04-19 | 2018-08-14 | 苏州阿洛斯环境发生器有限公司 | A kind of solid particulate matter method for generation and generator |
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Application publication date: 20160615 |