CN101672837A - Double-chamber system used for detecting emission characteristics of volatile organic compounds of indoor building materials - Google Patents
Double-chamber system used for detecting emission characteristics of volatile organic compounds of indoor building materials Download PDFInfo
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- CN101672837A CN101672837A CN200910093140A CN200910093140A CN101672837A CN 101672837 A CN101672837 A CN 101672837A CN 200910093140 A CN200910093140 A CN 200910093140A CN 200910093140 A CN200910093140 A CN 200910093140A CN 101672837 A CN101672837 A CN 101672837A
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Abstract
The invention relates to a double-chamber system used for the release detection of volatile chemical pollutants of indoor building materials, belonging to the field of indoor environment tests. The system comprises two identically designed environmental chambers, one stainless steel shell simultaneously supporting the two environmental chambers and providing water bath spaces and one set of water-bath heater providing constant temperature hot water, wherein two holes with the diameter of being identical with that of each environmental chamber are arranged on the top part of the stainless steelshell, and the two environmental chambers are arranged in the inner space of the shell by the two holes and then welded and fixed; and each environmental chamber comprises one cylindrical chamber body, a chamber cover the diameter of which is identical with that of the chamber body, a sealing ring pressed between the chamber body and the chamber cover and an annular sealing clamp groove clampingthe chamber body, the sealing ring and the chamber cover together. The double-chamber system is compact, portable, simple and reliable, does not adsorb VOCs and has excellent sealing performance, airin the chambers is uniformly mixed, and the manufacturing cost is not high. A parallel experiment, a repeated experiment and a contrast experiment can be simultaneously carried out by using the two chambers for measurement, thus shortening the detection time.
Description
Technical field
The invention belongs to indoor environment check field, particularly a kind of double-chamber system that is used to detect emission characteristics of volatile organic compounds of indoor building materials.
Background technology
Indoor air quality appreciable impact people's comfortable, health and work efficiency more and more are subjected to people's attention.And the organic volatile compound that the interior decoration decorative building material distributes (VOCs) excessive concentration is the one of the main reasons that causes indoor air quality inferior.Building materials VOCs emission characteristics distributes the key parameter decision by three: VOCs just begins to distribute content C in the building materials
0, the mass transfer diffusion coefficient D of VOC in building materials
m, and VOC is at the partition factor K at air and building materials interface.Accurate as far as possible for guaranteeing measurement parameter, detect the environmental chamber that uses and should use the made of not adsorbing VOCs, the VOCs that avoids building materials to distribute is adsorbed by environmental chamber, has reduced the VOCs concentration of gas in the cabin.Environmental chamber should have excellent leakproofness in addition, and air leakage is as far as possible little, could eliminate the dissipation of VOCs gas measurement result is caused harmful effect.The 3rd, environmental chamber should have good temperature control performance and heat-insulating property, eliminates the disturbance that variation of ambient temperature causes measurement result.The 4th, should guarantee the homogeneity that the environmental chamber internal gas flow mixes, prevent to detect sampled concentrations and depart from true VOCs concentration level.The 5th, the manufacturing of environmental chamber should take into account simple, small and exquisite and efficient, can carry out many group experiments simultaneously, and can realize that direct current is tested and airtight experiment is dual-purpose.Be weak yet the existing environment cabin in these areas more at present.For example the environmental chamber that manufactures and designs in the patent 200710152159.5 once can only carry out one group of experiment only for single cabin, and hatch do not have packoff, and only the gravity with hatchcover seals, and when VOCs concentration is not high in the cabin, will inevitably cause bigger error.This environmental chamber is directly exposed in the environment space without any temperature control and attemperator in addition, thus in the measuring process temperature wave kinetic energy reach ± 2 ℃.And this environmental chamber perforate directly links to each other with fan blower, and flow perturbation is very violent in the cabin, and the air purity that enters in the cabin can not guarantee, and can not be used to carry out airtight experiment.Do not have agitation fan in other the environmental chamber more, can not guarantee VOCs concentration homogeneity, and adopt the form of big cabin cover cludy more, in big cabin, install air-conditioning system additional, carry out temperature control.System complex thus, the construction costs height, but the temperature control effect is unexcellent.
Summary of the invention
The objective of the invention is in order to overcome the existing deficiency that is used for the environmental chamber of emission characteristics of volatile organic compounds of indoor building materials detection, a kind of double-chamber system that emission characteristics of volatile organic compounds of indoor building materials detects that is used for is provided, this double-chamber system small volume and less weight, simple and reliable, do not adsorb VOCs, have excellent sealing property, air mixed is even in the cabin, manufacturing cost is not high, and can carry out parallel laboratory test, repeated experiments and contrast experiment simultaneously, shortens experimental period.
For achieving the above object, a kind of indoor building materials volatility chemical pollutant that is used for that the present invention adopts discharges the double-chamber system that detects, it is characterized in that, comprise two identical environmental chambers of design, a stainless steel casing and the water-bath heater that steady temperature hot water is provided that supports two environmental chambers simultaneously and the water-bath space is provided; Have at the stainless steel casing top two with the identical hole of environmental chamber body diameter, two environmental chambers are put into outer casing space inside by these two holes, and welding is fixing; Each environmental chamber comprises a cylindrical cabin body, with the hatchcover of cabin body with diameter, be pressed between cabin body and the hatchcover O-ring seal and with cabin body, O-ring seal, hatchcover clip together the ring seal draw-in groove.
Characteristics of the present invention and effect:
The double-chamber system of structure of the present invention is applicable to that the VOCs of most of interior decoration building materials such as floor, carpet discharges detection.Gas mixture homogeneity and leakproofness are all more excellent in the pressurized capsule.Two cabins place under the same water-bath, and the environmental baseline unanimity can be carried out parallel laboratory test, repeated experiments and contrast experiment simultaneously, and two groups (using two cabins) measures simultaneously, shorten detection time.This double-chamber system small volume and less weight, simple and reliable, do not adsorb VOCs, have excellent sealing property, air mixed is even in the cabin, and manufacturing cost is not high.
Description of drawings
Fig. 1 is a double-chamber system general structure synoptic diagram of the present invention.
Embodiment
The double-chamber system that the present invention proposes reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
The general structure of detection system of the present invention, as shown in Figure 1, comprise two identical environmental chambers 1 of design, a stainless steel casing 2 that supports two environmental chambers simultaneously and the water-bath space is provided is arranged on stainless steel casing outer insulation material overcoat 3 and the water-bath heater (not shown) that steady temperature hot water is provided.Have at the stainless steel casing top two with the identical hole of environmental chamber body diameter, two environmental chambers are put into outer casing space inside by these two holes, and welding is fixing.Each environmental chamber comprises a cylindrical cabin body 11, with the hatchcover 12 of cabin body with diameter, be pressed between cabin body and the hatchcover O-ring seal and with cabin body, O-ring seal, hatchcover clip together ring seal draw-in groove 13.
The each several part embodiment of double-chamber system of the present invention is described in detail as follows:
Each environmental chamber 1 usefulness is not adsorbed the 304 stainless steel material manufacturings of VOCs, and volume is 30L, and diameter is 315mm.
Hatchcover is lifted with a small-sized fans 4 on the 12 inner tops, and present embodiment adopts common computer cpu fan product, is used to stir gas in the cabin, makes it to mix; Hatchcover 12 also has the threaded hole of a threaded hole that is used for outside injection VOCs, two pure air import and outlet when being used for the direct current experiment, each hole the time spent with screw and raw material band sealing; Also have two interfaces that are used to connect gas VOCs concentration analysis instrument in addition.
Ring seal draw-in groove 13 transversal section are parabolical, and the boss and the hatchcover boss of body upper surface, cabin are clipped together.The draw-in groove two ends connect by bolt, apply pretightning force and can dwindle the draw-in groove radius on bolt, clamp hatchcover and cabin body.
Stainless steel casing is welded by steel plate with 2, and the remaining space in the shell is the water-bath space.Outer casing bottom is provided with four rolling 21, is used to support the entire environment cabin system, and makes the environmental chamber conveniently moving.Two connecting pipes 22,23 are installed on the bottom of a side of shell and the top of opposite flank, are used to connect water-bath heater.The mode that goes out on advancing under this makes current steadily not impact, and heat exchange is abundant.
Present embodiment also comprises the insulation material overcoat that is arranged on outside the stainless steel casing.Thermal-insulation coat adopts conventional insulation material to make, and is used to prevent scattering and disappearing of water-bath heat.
The course of work of the present invention (is example with contrast experiment):
The inlet and outlet pipe lines of water-bath is connected on the stainless steel casing intake-outlet, the interface on two environmental chamber hatchcovers is connected with gas VOCs concentration analysis instrument respectively, connect fan power supply, make fan purge two environmental chambers;
Stainless steel casing and connecting pipe are connected water-bath heater, make the environmental chamber temperature stabilization at 25 ± 0.2 ℃;
A fitting-up building materials base material to be measured (for example base material density board of reinforced composite floorboard) is put into one of them environmental chamber, same batch of onesize base material of another piece still put into another environmental chamber through the finished product of pad pasting processing in the surface;
Hatch at two environmental chambers is all put O-ring seal, covers hatchcover, sealing draw-in groove on the card, and the tightening card slot bolt compresses environmental chamber cabin body, O-ring seal and hatchcover;
Three threaded holes of pure air import and outlet all use screw and raw material band to seal when being used for outside injection VOCs on the hatchcover and being used for the direct current experiment, make two environmental chambers be in sealing state;
Two environmental chamber VOCs gas concentration change curves measuring according to gas VOCs concentration analysis instrument, can contrast and draw in the reinforced composite floorboard process of manufacture, what difference is the base material density board through having with simple density board VOCs emission characteristics after the surperficial pad pasting treatment process.
Adopt above-mentioned similar detection method, in two environmental chambers, all put into the identical reinforced composite floorboard finished product that handle through same pad pasting on the surface, can draw two groups of VOCs emission characteristics measurement data simultaneously, the repeatability of confirmatory experiment.
Adopt above-mentioned similar detection method, put into the density board of the same race of having pasted different films in two environmental chambers, can carry out parallel laboratory test, what difference density board VOCs emission characteristics had after different retes were sticked in evaluation.
Claims (5)
1, a kind of indoor building materials volatility chemical pollutant that is used for discharges the double-chamber system that detects, it is characterized in that, this system comprises two identical environmental chambers of design, a stainless steel casing that supports two environmental chambers simultaneously and the water-bath space is provided, He Yitai provides the water-bath heater of steady temperature hot water; Have at the stainless steel casing top two with the identical hole of environmental chamber body diameter, two environmental chambers are put into outer casing space inside by these two holes, and welding is fixing; Each environmental chamber comprises a cylindrical cabin body, with the hatchcover of cabin body with diameter, be pressed between cabin body and the hatchcover O-ring seal and with cabin body, O-ring seal, hatchcover clip together the ring seal draw-in groove.
2, double-chamber system as claimed in claim 1 is characterized in that, body upper surface, described environmental chamber cabin extension becomes a circle boss, and hatchcover lower surface extension becomes another circle boss with cabin body boss same radius; Described ring seal draw-in groove transversal section is a parabolical, and the boss and the hatchcover boss of body upper surface, cabin are clipped together.
3, double-chamber system as claimed in claim 1 is characterized in that, also is included on the inner top of described hatchcover and is lifted with a desk fan, is used to stir gas in the cabin, makes it to mix.
4, double-chamber system as claimed in claim 1 is characterized in that, also comprises being arranged on the outer insulation material overcoat of described stainless steel casing, is used to prevent scattering and disappearing of water-bath heat.
5, double-chamber system as claimed in claim 1 is characterized in that, described outer casing bottom is provided with four rolling, is used to support the entire environment cabin system, and makes the environmental chamber conveniently moving.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100931407A CN101672837B (en) | 2009-09-29 | 2009-09-29 | Double-chamber system used for detecting emission characteristics of volatile organic compounds of indoor building materials |
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| CN2009100931407A CN101672837B (en) | 2009-09-29 | 2009-09-29 | Double-chamber system used for detecting emission characteristics of volatile organic compounds of indoor building materials |
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| CN101672837A true CN101672837A (en) | 2010-03-17 |
| CN101672837B CN101672837B (en) | 2012-11-14 |
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| CN102162812A (en) * | 2010-12-23 | 2011-08-24 | 清华大学 | Method and device for quickly measuring building material emission key parameter |
| CN102539637A (en) * | 2012-02-06 | 2012-07-04 | 中国检验检疫科学研究院 | Environment testing device |
| CN102768262A (en) * | 2012-07-17 | 2012-11-07 | 沈阳产品质量监督检验院 | Combined intelligent detecting system with large-capacity environmental chamber and GC-MS (gas chromatography-mass spectrometer) |
| CN104136920A (en) * | 2012-09-18 | 2014-11-05 | 三得利控股株式会社 | Odor adsorbent material, odor detection kit, and method for using same |
| CN104614206A (en) * | 2015-02-09 | 2015-05-13 | 通标标准技术服务(上海)有限公司 | VOC finished vehicle environment sampling cabin and testing method thereof |
| CN105987986A (en) * | 2015-02-09 | 2016-10-05 | 山西亮龙涂料有限公司 | Device for detecting air cleaning capability of coated material |
| CN106093317A (en) * | 2016-08-20 | 2016-11-09 | 东莞市升微机电设备科技有限公司 | Miniature VOC test chamber |
| CN106442274A (en) * | 2016-08-31 | 2017-02-22 | 同济大学建筑设计研究院(集团)有限公司 | Testing device and testing method for determining absolute dust generating quantity of equipment |
| CN108614051A (en) * | 2018-07-04 | 2018-10-02 | 北京市劳动保护科学研究所 | A kind of device for accelerating building material surface polluted gas to distribute |
| CN109270113A (en) * | 2018-12-07 | 2019-01-25 | 黑龙江省能源环境研究院 | A kind of building materials volatility detection device for simulating geothermal environment |
| CN109342489A (en) * | 2018-12-07 | 2019-02-15 | 黑龙江省能源环境研究院 | One kind is for detecting the volatile partial temperature control structure of building materials |
| CN109342488A (en) * | 2018-12-07 | 2019-02-15 | 黑龙江省能源环境研究院 | A kind of building materials volatility detection device for simulating wall-mounted heating environment |
| CN112098552A (en) * | 2020-09-07 | 2020-12-18 | 北京理工大学 | Multi-cabin method for measuring initial concentration and distribution coefficient of volatile organic compounds in building materials |
| CN112816464A (en) * | 2021-01-04 | 2021-05-18 | 北京三棵树新材料科技有限公司 | Easy-to-clean rapid air purification detector and testing method thereof |
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| CN102162812B (en) * | 2010-12-23 | 2013-07-24 | 清华大学 | Method for quickly measuring building material emission key parameter |
| CN102162812A (en) * | 2010-12-23 | 2011-08-24 | 清华大学 | Method and device for quickly measuring building material emission key parameter |
| CN102539637A (en) * | 2012-02-06 | 2012-07-04 | 中国检验检疫科学研究院 | Environment testing device |
| CN102539637B (en) * | 2012-02-06 | 2014-12-10 | 中国检验检疫科学研究院 | Environment testing device |
| CN102768262A (en) * | 2012-07-17 | 2012-11-07 | 沈阳产品质量监督检验院 | Combined intelligent detecting system with large-capacity environmental chamber and GC-MS (gas chromatography-mass spectrometer) |
| CN102768262B (en) * | 2012-07-17 | 2015-08-19 | 沈阳产品质量监督检验院 | A kind of large volume environment cabin/GC-MS coupling intelligent checking system |
| US10371677B2 (en) | 2012-09-18 | 2019-08-06 | Suntory Holdings Limited | Odor adsorbent material, odor detection kit, and method for using same |
| CN104136920A (en) * | 2012-09-18 | 2014-11-05 | 三得利控股株式会社 | Odor adsorbent material, odor detection kit, and method for using same |
| CN104614206A (en) * | 2015-02-09 | 2015-05-13 | 通标标准技术服务(上海)有限公司 | VOC finished vehicle environment sampling cabin and testing method thereof |
| CN105987986A (en) * | 2015-02-09 | 2016-10-05 | 山西亮龙涂料有限公司 | Device for detecting air cleaning capability of coated material |
| CN105987986B (en) * | 2015-02-09 | 2018-07-27 | 山西亮龙涂料有限公司 | Equipment for the air purification ability for testing coating material |
| CN106093317A (en) * | 2016-08-20 | 2016-11-09 | 东莞市升微机电设备科技有限公司 | Miniature VOC test chamber |
| CN106442274A (en) * | 2016-08-31 | 2017-02-22 | 同济大学建筑设计研究院(集团)有限公司 | Testing device and testing method for determining absolute dust generating quantity of equipment |
| CN108614051A (en) * | 2018-07-04 | 2018-10-02 | 北京市劳动保护科学研究所 | A kind of device for accelerating building material surface polluted gas to distribute |
| CN109270113A (en) * | 2018-12-07 | 2019-01-25 | 黑龙江省能源环境研究院 | A kind of building materials volatility detection device for simulating geothermal environment |
| CN109342489A (en) * | 2018-12-07 | 2019-02-15 | 黑龙江省能源环境研究院 | One kind is for detecting the volatile partial temperature control structure of building materials |
| CN109342488A (en) * | 2018-12-07 | 2019-02-15 | 黑龙江省能源环境研究院 | A kind of building materials volatility detection device for simulating wall-mounted heating environment |
| CN109342488B (en) * | 2018-12-07 | 2023-05-23 | 黑龙江省能源环境研究院 | Building material volatility detection device of simulation wall-hanging heat supply environment |
| CN109270113B (en) * | 2018-12-07 | 2023-05-23 | 黑龙江省能源环境研究院 | Building material volatility detection device of simulation geothermal environment |
| CN112098552A (en) * | 2020-09-07 | 2020-12-18 | 北京理工大学 | Multi-cabin method for measuring initial concentration and distribution coefficient of volatile organic compounds in building materials |
| CN112098552B (en) * | 2020-09-07 | 2021-07-09 | 北京理工大学 | Multi-cabin method for measuring initial concentration and distribution coefficient of volatile organic compounds in building materials |
| CN112816464A (en) * | 2021-01-04 | 2021-05-18 | 北京三棵树新材料科技有限公司 | Easy-to-clean rapid air purification detector and testing method thereof |
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| CN101672837B (en) | 2012-11-14 |
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Application publication date: 20100317 Assignee: WUXI CECEP BUILDING ENERGY CO., LTD. Assignor: Tsinghua University Contract record no.: 2014320010134 Denomination of invention: Double-chamber system used for detecting emission characteristics of volatile organic compounds of indoor building materials Granted publication date: 20121114 License type: Exclusive License Record date: 20140710 |
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