CN101722062B - Equipment for measuring concentration of volatile organic compound and measuring method - Google Patents
Equipment for measuring concentration of volatile organic compound and measuring method Download PDFInfo
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- CN101722062B CN101722062B CN2008102011452A CN200810201145A CN101722062B CN 101722062 B CN101722062 B CN 101722062B CN 2008102011452 A CN2008102011452 A CN 2008102011452A CN 200810201145 A CN200810201145 A CN 200810201145A CN 101722062 B CN101722062 B CN 101722062B
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Abstract
The invention relates to equipment for measuring concentration of volatile organic compound, comprising a lab, an air conditioner which is connected with the lab in an embedding manner and controls humiture, an electrically measuring instrument connecting the lab and the air conditioner by circuits, a VOC processing system connecting the air condition by pipelines and the electrically measuring instrument by the circuits and a plurality of groove underground air flue device arranged at the bottom of the lab.In the invention, an air feeder introduces external air or air in the lab by static pressure, a cleaning strainer filters materials such as dust in the air, then a chemical filter filters special materials such as VOC and a groove underground air flue device carried out air settlement adsorption to treat VOC material and lower VOC concentration in the lab.The measuring equipment and the measuring method of the invention improve exchange service of the filter of the VOC processing unit while reducing burden of the VOC processing unit, downsize the processing unit and control VOC concentration in the lab to be below rated value at low cost.
Description
Technical field
The present invention relates to a kind of VOC apparatus for measuring concentration and measuring method thereof, relate in particular to a kind of apparatus and method that the indoor VOC concentration of car is measured.
Background technology
Indoor VOC (VOC) measurement of concetration of car is the detection method according to regulations such as ISO, JAMA (Japan automatic vehicle industry standard), GB standards; And for the indoor VOC concentration of very correct measurement car; Environment VOC concentration around then requiring (in the laboratory that puts into measurement mechanism from motor-car and then measure concentration, promptly obtaining the VOC concentration in the laboratory) must reach below the setting.
Give an example, the GB standard code is VOC concentration 200 μ g/m
3, concentration of formaldehyde 20 μ g/m
3, toluene concentration 20 μ g/m
3Below.
Usually the VOC apparatus for measuring concentration comprises laboratory, connects above-mentioned part and the electric meter that above-mentioned part is controlled is adorned part with the air-conditioning part and the circuit of the laboratory embedded humiture controlled that is connected.
Can control the inside groove of laboratory of humiture arbitrarily normally used is stainless steel; The air-conditioning part of controlling humiture in addition is because be equipped with pressure fan, heater, humidifier, evaporimeter etc., so must be controlled at the VOC that comes out from these below setting.
Heat through interior heater through air-conditioner; Evaporator cools and dehumidifying, the associated treatment of humidifier humidification is carried out humiture dynamic equilibrium to the air in the laboratory and is handled; Air in pressure fan cyclic test chamber and the air-conditioner finally reaches the humiture requirement that sets.
Do not become merits and demerits to the laboratory that these desired values are controlled at below the setting in China till now; The be welded inside groove of dual structure of the stainless steel through surperficial specially treated in the laboratory of Japan in addition; The processing mode that circulates in the gap of air between inside groove and shell of air-conditioner control; Make inside groove can be in the state and the satisfied top benchmark of purification, but exist the very high problem of cost.
Summary of the invention
VOC apparatus for measuring concentration provided by the invention and measuring method thereof can address the above problem, and are controlled at the VOC concentration in the laboratory below the setting with cheap price.
In order to achieve the above object; The present invention provides a kind of VOC apparatus for measuring concentration; The electric meter dress part that comprises laboratory, connects above-mentioned part with the air-conditioning part and the circuit of the laboratory embedded humiture controlled that is connected; Said air-conditioning partly is provided with pressure fan, heater, humidifier, evaporimeter, and said electric meter dress part is controlled the work of whole VOC apparatus for measuring concentration, is characterized in:
Described VOC apparatus for measuring concentration also comprises the VOC treatment system, and this VOC treatment system pipeline connects described air-conditioning part, and circuit connects described electric meter dress part;
Described VOC treatment system adopts sheet metal box body, comprises outer gas disposal part and circular processed portion, all is provided with pressure fan, polishing filter and chemical filter in the described outer gas disposal part with in the circular processed portion;
Static pressure with pressure fan is introduced the air in outer gas or the laboratory, through the materials such as dust in the polishing filter filtered air, filters predetermined substances such as VOC then through chemical filter, sends into the air-conditioning part again, finally sends in the laboratory.
Chemical filter is selected according to the material that filters and is fit to filter material;
Described VOC apparatus for measuring concentration also comprises the some groove underground air duct devices that are arranged on the laboratory bottom;
Be provided with filter in the described groove underground air duct device, this filter is imbedded in the groove of connecting underground air duct through barrier;
Part or all carries out the sedimentation absorption of air through groove underground air duct device circulating air in the laboratory, handles airborne VOC material, and the VOC concentration in the laboratory is descended;
Also be provided with outer gas air outlet in the described laboratory, the gas in the laboratory is discharged;
Also be provided with the air draught air channel that pipeline connects the circular processed portion of said VOC treatment system in the described laboratory, the gas in the laboratory sucked get into the air-conditioning part again after circular processed portion is handled, send into laboratory.
The present invention also provides a kind of VOC concentration measuring method, comprises following steps:
Step 1, laboratory start;
Step 1.1, electric meter dress partly according to the setting of humiture target, start the air-conditioning part, and inner air is handled;
Filter in step 1.2, the Automatic Cycle groove underground air duct device carries out the sedimentation absorption of air to the circulating air in the laboratory, handles airborne VOC material;
The outer gas disposal of step 2, VOC treatment system partly starts;
The outer gas disposal part of VOC treatment system gone into outer conductance by step 2.1, pressure fan;
Air after step 2.2, the processing gets into the air-conditioning part;
Step 3, open outer gas air outlet, will with get into laboratory and discharge outside the laboratory with the air of amount;
If VOC concentration drops to setting concentration in the laboratory, just reach stable state, then device quits work;
If do not reach setting concentration, then carry out step 4;
The circular processed portion of step 4, VOC treatment system starts;
Step 4.1, import the air in the laboratory through the air draught air channel in the circular processed portion of VOC treatment system and handle;
Step 4.1.1, through the materials such as dust in the polishing filter filtered air;
Step 4.1.2, filter predetermined substance such as VOC through chemical filter;
Air after step 4.2, the processing gets into the air-conditioning part again.
The present invention has also alleviated the burden of VOC treating apparatus the exchange life-span of the filter that improves the VOC treating apparatus, can make the treating apparatus miniaturization simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the structural representation of groove underground air duct device among the present invention.
The specific embodiment
Following according to Fig. 1～Fig. 3, specify preferred embodiments of the present invention:
As depicted in figs. 1 and 2; The present invention provides a kind of VOC apparatus for measuring concentration; The electric meter dress part 130 that comprises laboratory 110, connects above-mentioned part with the air-conditioning part 120 and the circuit of laboratory 110 embedded humitures controlled that are connected; Said air-conditioning part 120 is provided with pressure fan 121, heater 122, humidifier 123, evaporimeter 124, and the work of the whole VOC apparatus for measuring concentration of said electric meter dress part 130 controls is characterized in:
Described VOC apparatus for measuring concentration also comprises VOC treatment system 140, and these VOC treatment system 140 pipelines connect described air-conditioning part 120, and circuit connects described electric meter dress part 130;
Described VOC treatment system 140 adopts sheet metal box body; Comprise outer gas disposal part 141 and circular processed portion 142, all be provided with pressure fan, polishing filter and chemical filter (all not shown among the figure) in the described outer gas disposal part 141 with in the circular processed portion 142;
Static pressure with pressure fan is introduced the air in outer gas or the laboratory, through the materials such as dust in the polishing filter filtered air, filters predetermined substances such as VOC then through chemical filter, sends into air-conditioning part 120 again, finally sends in the laboratory 110.
Chemical filter is selected according to the material that filters and is fit to filter material;
As shown in Figure 3, described VOC apparatus for measuring concentration also comprises the some groove underground air duct devices 150 that are arranged on laboratory 110 bottoms;
Be provided with filter 151 in the described groove underground air duct device 150, this filter 151 is imbedded in the groove 153 of connecting underground air duct through barrier 152;
Part or all carries out the sedimentation absorption of air through groove underground air duct device 150 circulating air in the laboratory 110, handles airborne VOC material, and the VOC concentration of 110 li at laboratory is descended;
Can also be provided with outer gas air outlet (not illustrating in the drawings) in the described laboratory 110, the gas in the laboratory is discharged;
Also be provided with the air draught air channel 111 that pipeline connects the circular processed portion 142 of said VOC treatment system 140 in the described laboratory 110; Gas in the laboratory 110 is sucked circular processed portion 142 to be handled; Air after the processing gets into air-conditioning part 120 again, sends into laboratory 110.
The present invention also provides a kind of VOC concentration measuring method, comprises following steps:
Step 1, laboratory 110 start;
Step 1.1, electric meter are adorned the setting of part 130 according to the humiture target, start air-conditioning part 120, and inner air is handled;
The outer gas disposal part 141 of step 2, VOC treatment system 140 starts;
The outer gas disposal part 141 of VOC treatment system 140 gone into outer conductance by step 2.1, pressure fan;
Air after step 2.2, the processing gets into air-conditioning part 120;
Step 3, open outer gas air outlet, will with get into laboratory 110 and discharge outside the laboratories with the air of amount;
If VOC concentration drops to setting concentration in the laboratory 110, just reach stable state, then device quits work;
If do not reach setting concentration, then carry out step 4;
The circular processed portion 142 of step 4, VOC treatment system 140 starts;
Step 4.1, import the air in the laboratory 110 through air draught air channel 111 in the circular processed portion 142 of VOC treatment system 140 and handle;
Step 4.1.1, through the materials such as dust in the polishing filter filtered air;
Step 4.1.2, filter predetermined substance such as VOC through chemical filter;
Air after step 4.2, the processing gets into air-conditioning part 120 again.
The outer gas disposal part 141 of VOC treatment system 140 and the circular processed portion 142 of VOC treatment system 140 can use separately.Both filters include polishing filter and chemical filter.Like this when need changing both filters, can starting another part, to keep performance constant, changes the filter that lost efficacy simultaneously, accomplishes continuous running.
The present invention has also alleviated the burden of VOC treatment system 140 the exchange life-span of the filter that improves VOC treatment system 140, can make the treating apparatus miniaturization simultaneously.
Claims (6)
1. VOC apparatus for measuring concentration; The electric meter dress part (130) that comprises laboratory (110), connects above-mentioned part with the air-conditioning part (120) and the circuit of laboratory (110) the embedded humiture controlled that is connected; Said air-conditioning part (120) is provided with first pressure fan (121), heater (122), humidifier (123), evaporimeter (124); The work of the whole VOC apparatus for measuring concentration of said electric meter dress part (130) control is characterized in that:
Described VOC apparatus for measuring concentration also comprises VOC treatment system (140), and this VOC treatment system (140) pipeline connects described air-conditioning part (120), and circuit connects described electric meter dress part (130);
Described VOC treatment system (140) comprises outer gas disposal part (141) and circular processed portion (142);
Described VOC apparatus for measuring concentration also comprises the some groove underground air duct devices (150) that are arranged on laboratory (110) bottom;
In the outer gas disposal part (141) of described VOC treatment system (140) and all be provided with second pressure fan, polishing filter and chemical filter in the circular processed portion (142);
Static pressure with second pressure fan is introduced the air in outer gas or the laboratory (110), through the dust particle in the polishing filter filtered air, filters the VOC predetermined substance through chemical filter then, sends into air-conditioning part (120) again;
Be provided with filter (151) in the described groove underground air duct device (150), this filter (151) is imbedded in the groove (153) of connecting underground air duct through barrier (152);
Part or all carries out the sedimentation absorption of air through groove underground air duct device (150) circulating air in the laboratory (110), handles airborne VOC material, and the VOC concentration of laboratory (110) lining is descended;
Also be provided with the air draught air channel (111) that pipeline connects the circular processed portion (142) of said VOC treatment system (140) in the described laboratory (110), the gas in the laboratory (110) sucked send into air-conditioning part (120) again after circular processed portion (142) is handled.
2. VOC apparatus for measuring concentration as claimed in claim 1 is characterized in that, described VOC treatment system (140) adopts sheet metal box body.
3. VOC apparatus for measuring concentration as claimed in claim 1 is characterized in that, described chemical filter is selected according to the material that filters and is fit to filter material.
4. VOC apparatus for measuring concentration as claimed in claim 1 is characterized in that, also is provided with outer gas air outlet in the described laboratory (110), and the gas in the laboratory is discharged.
5. one kind is carried out the method for VOC measurement of concetration according to the said device of claim 1, it is characterized in that, comprises following steps:
Step 1, laboratory (110) start;
Step 1.1, electric meter dress partly (130) start air-conditioning part (120) according to the setting of humiture target, and inner air is handled;
Filter (151) in step 1.2, the Automatic Cycle groove underground air duct device (150) carries out the sedimentation absorption of air to the circulating air in the laboratory (110), handles airborne VOC material;
The outer gas disposal part (141) of step 2, VOC treatment system (140) starts;
The outer gas disposal part (141) of VOC treatment system (140) gone into outer conductance by step 2.1, second pressure fan;
Air after step 2.2, the processing gets into air-conditioning part (120);
Step 3, open outer gas air outlet, will with get into laboratory (110) and discharge outside the laboratory with the air of amount;
If the interior VOC concentration of laboratory (110) drops to setting concentration, just reach stable state, then device quits work;
If do not reach setting concentration, then carry out step 4;
The circular processed portion (142) of step 4, VOC treatment system (140) starts;
Step 4.1, import the air in the laboratory (110) through air draught air channel (111) in the circular processed portion (142) of VOC treatment system (140) and handle;
Air after step 4.2, the processing gets into air-conditioning part (120) again.
6. VOC concentration measuring method as claimed in claim 5 is characterized in that, described step 4.1 comprises following steps:
Step 4.1.1, through the dust particle in the polishing filter filtered air;
Step 4.1.2, filter the VOC predetermined substance through chemical filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102011452A CN101722062B (en) | 2008-10-14 | 2008-10-14 | Equipment for measuring concentration of volatile organic compound and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102011452A CN101722062B (en) | 2008-10-14 | 2008-10-14 | Equipment for measuring concentration of volatile organic compound and measuring method |
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| Publication Number | Publication Date |
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| CN101722062A CN101722062A (en) | 2010-06-09 |
| CN101722062B true CN101722062B (en) | 2012-01-04 |
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| CN2008102011452A Active CN101722062B (en) | 2008-10-14 | 2008-10-14 | Equipment for measuring concentration of volatile organic compound and measuring method |
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| CN104181015B (en) * | 2014-08-22 | 2016-06-29 | 上海延锋江森座椅有限公司 | A kind of novel sack method adopts system automatically |
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