CN101692025B - Test system for detecting volatile organic compounds - Google Patents
Test system for detecting volatile organic compounds Download PDFInfo
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- CN101692025B CN101692025B CN2009101927019A CN200910192701A CN101692025B CN 101692025 B CN101692025 B CN 101692025B CN 2009101927019 A CN2009101927019 A CN 2009101927019A CN 200910192701 A CN200910192701 A CN 200910192701A CN 101692025 B CN101692025 B CN 101692025B
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Abstract
The invention discloses a test system for detecting volatile organic compounds, which comprises a test chamber jacket, a test chamber arranged in the test chamber jacket, and an air purification adjusting device connected with an air inlet of the test chamber, wherein the air purification adjusting device consists of an compressor, an air storage tank, a dryer, a filter, a volatile organic compound catalytic reaction device, a condenser, a drying machine, a volatile organic compound filter and a flow control and humidification combination unit which are connected on an air inlet pipeline in turn. The air purification adjusting device can greatly improve the cleanliness of the air naturally entering the test chamber, effectively ensures the test environment, and greatly improves the detection accuracy. A sealing device is also arranged between a door panel and a door frame of the test chamber, which can greatly improve the sealing effect between the door panel and the door frame of the test chamber, reduce the pollution to the test chamber caused by a door sealing material, and is in favor of further improving the test accuracy. The dynamic accuracy control of the humidity is achieved by improving the humidification combination unit.
Description
Technical field
The present invention relates to a kind of environmental test system; Relate in particular a kind of can be according to the needs of experimental enviroment; Humidity, temperature, air displacement rate to experimental enviroment automatically adjust; And can carry out effective treatment and purification to the air that gets in the test cabin, can be used for detecting the test macro of volatile organic matter.
Background technology
Improving constantly of Along with people's living standard, people also are greatly improved to the requirement of environmental quality, especially to the environmental index of living environment, do not receive the injury of noxious materials such as formaldehyde with the health that ensures the people.And a lot of indoor materials and product all contain noxious materials such as formaldehyde; For to ensure that the people's is healthy; Need the release rate and the release characteristics of noxious materials such as indoor material and the contained benzene of product, toluene, formaldehyde be detected; Especially detect in certain hot environment, thereby obtain qualified indoor material and product, make people that a good living environment arranged.Thereby a testing environment that meets the requirements need be provided, improve the precision that detects.
Summary of the invention
One object of the present invention is to overcome above-mentioned defective in the prior art: providing a kind of can accurately control the temperature in the experimental cabin, humidity; And can make temperature in the experimental cabin, humidity even; And can carry out effective treatment and purification to the air that gets in the test cabin, can effectively improve test accuracy, satisfy the test macro that is used to detect volatile organic matter of experimental enviroment needs better.
For realizing above-mentioned purpose; Technical scheme provided by the invention is following: construct a kind of test macro that is used to detect volatile organic matter; Comprise test storehouse chuck, be installed in the test storehouse in the chuck of test storehouse; Also comprise the air purification and regulation device that is connected with the air intake opening in test storehouse, this air purification and regulation device is to be made up of the air compressor machine, gas-holder, exsiccator, filtrator, volatile organic matter catalyst reaction device, refrigeratory, dryer, volatile organic matter filtrator, flow control and the humidification assembled unit that are connected in turn on the air inlet pipeline.
Also be equiped with a packoff between the door-plate in said test storehouse and the doorframe; The sealing device is successively set on pressing plate, the O-ring seal between door-plate and the doorframe, the flexible liner bar that is arranged in the O-ring seal constitutes; Can improve the door-plate in test storehouse and the sealing effectiveness between the doorframe greatly; Reduce the door sealing material test chamber is polluted, help improving test accuracy.
The beneficial effect that is used to detect the test macro of volatile organic matter according to the invention is: through the air purification and regulation device that structure is connected with the air intake opening of testing the storehouse, this air purification and regulation device is to be made up of the air compressor machine, gas-holder, exsiccator, filtrator, volatile organic matter catalyst reaction device, refrigeratory, dryer, volatile organic matter filtrator, flow control and the humidification assembled unit that are connected in turn on the air inlet pipeline.Can improve the cleanliness factor that nature gets into the air in the experimental cabin greatly through the air purification and regulation device, effectively protect the confirmatory test environment, thereby improve the precision that detects greatly, can be used for confirming the influence of environmental variance material and product release rate and release characteristics; Divide the grade of material and product according to release characteristics; The model of exploitation and checking prediction room air pollution; According to indoor pollutant data or forecast model room air is estimated.
Below in conjunction with accompanying drawing and embodiment the test macro that is used to detect volatile organic matter of the present invention is described further:
Description of drawings
Fig. 1 is that the test macro that the present invention is used to detect volatile organic matter is implemented one system construction drawing;
Fig. 2 is that the test macro that the present invention is used to detect volatile organic matter is implemented two system construction drawing;
Fig. 3 is one of the cut-open view of the volatile organic matter catalyst reaction device of the present invention's test macro of being used to detect volatile organic matter;
Fig. 4 be the present invention's test macro of being used to detect volatile organic matter the volatile organic matter catalyst reaction device cut-open view two;
Fig. 5 is the cut-open view of the volatile organic matter filtrator of the present invention's test macro of being used to detect volatile organic matter;
Fig. 6 is that humidity control device that the present invention is used to detect the test macro of volatile organic matter is by the be connected in parallel structural representation of structure of two humidifying unit;
Fig. 7 is the examination storehouse chuck of the present invention's test macro of being used to detect volatile organic matter and the package assembly synoptic diagram in test storehouse;
Fig. 8 is the A place partial enlarged drawing of Fig. 7;
Fig. 9 is the local amplification view in B place of Fig. 7.
Embodiment
Below the most preferred embodiment that is used to detect the test macro of volatile organic matter according to the invention, therefore do not limit protection scope of the present invention.
Implement one; With reference to Fig. 1, Fig. 3, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9; A kind of test macro that is used to detect volatile organic matter is provided; Comprise test storehouse chuck 1, be installed in the test storehouse 2 in the test storehouse chuck 1; Also comprise the air purification and regulation device 3 that is connected with the air intake opening in test storehouse 2, this air purification and regulation device 3 is to be made up of the air compressor machine 4, gas-holder 5, exsiccator 6, filtrator 7, volatile organic matter catalyst reaction device 8, refrigeratory 9, dryer 10, volatile organic matter filtrator 11, flow control and the humidification assembled unit 12 that are connected in turn on the air inlet pipeline.
Said volatile organic matter catalyst reaction device 8 is by outer cover 13, be arranged on first tank body 14 in the outer cover 13, first draft tube 15 that is connected with first tank body 14, first escape pipe 16, be installed in first tank body, 14 interior well heaters 17 constitutes; Be filled with insulation material 23 between the said outer cover 13 and first tank body 14; First tank body 14 is filled with volatile organic matter catalyzer 24; The temperature of said first tank body, 14 inner control is 200-400 ℃; First tank body 14 is for stainless steel material is made, and two ends adopt flange and copper sealing gasket to seal, and can not produce volatile organic matter gas; Make volatile organic matter under lower temperature, carrying out oxidation under the effect of catalyzer, get into next link and handle.
With reference to Fig. 4; Said volatile organic matter catalyst reaction device 8 also by outer cover 13, be arranged on first tank body 14, second tank body 46 in the outer cover 13; First draft tube 15, first escape pipe 16 that are connected with first tank body 14; Second draft tube 47, second escape pipe 48 that are connected with second tank body 46, the well heaters 17 that are installed in first tank body 14 constitute, and are filled with the rare-earth metal catalyst 24 as the volatile organic matter catalyzer in second tank body 46; Rare-earth metal catalyst 24 can be that platinum, rhodium, palladium, manganese, iron mix etc.; Second draft tube 47 of second tank body 46 is connected with first escape pipe 16 of first tank body 14, is filled with insulation material 23 between the said outer cover 13 and first tank body 14, when being connected with native system; The tracheae 15 of first tank body 14 is connected with the gas outlet of filtrator 7, and second escape pipe 48 of second tank body 46 is connected with refrigeratory 9 air intake openings.
Said volatile organic matter filtrator 11 is to be made up of the 3rd tank body 18, the 3rd draft tube 19, the 3rd escape pipe 20 that are connected with the 3rd tank body 18; Be installed with orifice plate or web plate 21 in the 3rd tank body 18 at interval; Be filled with the filtrate 22 that is used to filter volatile organic matter between adjacent two web plates 21; This filtrate 22 is activated charcoal or other filtering materials; First tank body 14 is for stainless steel material is made, and two ends adopt flange and teflon gasket to seal, and inside is filled with acticarbon and the chemical filtrate of removing volatile organic matter and formaldehyde; Orifice plate or web plate 21 make volatile organic matter and formaldehyde fully contact with chemical filtrate with acticarbon, strengthen the effect of removing volatile organic matter and formaldehyde.
Said flow control and humidification assembled unit 12 are by constituting with total flow controller 25, humidity control device 26, gas buffer jar 27 that volatile organic matter filtrator 11 export pipelines are connected successively; The outlet pipe of surge tank 27 is connected with the air intake opening in test storehouse 2; This humidity control device 26 comprises a humidifying unit 28; This humidifying unit 28 is to be made up of the 4th tank body 29, the evaporator 30, the primary heaters 31 that are arranged in the 4th tank body 29; Also be installed with first orifice plate or web plate 32 at interval in the 4th tank body 29, it is less to adopt single humidifying unit 28 to be adapted to test the storehouse, the small-sized test macro that airshed is less.
Also be provided with the accommodation space 36 that constitutes by dividing plate 35 between the circulation air path that forms in test storehouse chuck 1 and test storehouse 2; This accommodation space 36 separates with circulation air path, is equiped with a circulating fan 37 in the accommodation space 36, and the fan blade of circulating fan 37 is located in the test storehouse 2; Drive motor is arranged in ccontaining empty 36; The outer wall of said test storehouse chuck 1 offers and accommodation space 36 corresponding openings, and this opening is equiped with a heat radiation orifice plate 38, and the afterbody of said drive motor also is equiped with a radiator fan 39; Can effectively prolong the serviceable life of circulating fan 37, avoid temperatures involved in the chuck.
Also be equiped with a packoff 42 between the door-plate 40 in said test storehouse 2 and the doorframe 41; Sealing device 42 is to be made up of the flexible liner bars 45 that are successively set on pressing plate 43, O-ring seal 44 between door-plate 40 and the doorframe 41, be arranged in the O-ring seal 44; Can improve the door-plate 40 in test storehouse 2 and the sealing effectiveness between the doorframe 41 greatly; Reducing the door sealing material pollutes test chamber; Help improving test accuracy, flexible liner bar 45 is for to contain the foamed silica gel bar of less volatile organic matter or the silica gel strip that hollow structure contains less volatile organic matter, and said O-ring seal 44 is expanded ptfe band or teflon cloth.
Implement two, with reference to Fig. 2, said humidity control device 26 is to be connected in parallel by two humidifying unit 28 to constitute; Be connected with a flow controller 33 on one humidifying unit 28 and the pipeline that total flow controller 25 is connected; Be connected with a damper 34 on another humidifying unit 28 and the pipeline that total flow controller 25 is connected, it is bigger to adopt two or more humidifying unit 28 to be adapted to test the storehouse, the large test system that airshed is bigger; Controlling a humidifying unit is higher temperature; Make the air water capacity that flows through this humidifying unit high, controlling another humidifying unit is lower temperature, makes the air water capacity that flows through this humidifying unit low.Test macro is controlled the air mass flow ratio of two humidifying unit, reaches the effect of dynamic control test macro humidity.
Claims (9)
1. test macro that is used to detect volatile organic matter; Comprise test storehouse chuck (1), be installed in the test storehouse (2) in the test storehouse chuck (1); It is characterized in that; Also comprise the air purification and regulation device (3) that is connected with the air intake opening in test storehouse (2); This air purification and regulation device (3) is to be made up of the air compressor machine (4), gas-holder (5), exsiccator (6), filtrator (7), volatile organic matter catalyst reaction device (8), refrigeratory (9), dryer (10), volatile organic matter filtrator (11), flow control and the humidification assembled unit (12) that are connected in turn on the air inlet pipeline; Said volatile organic matter catalyst reaction device (8) is by outer cover (13), is arranged on outer cover (13) interior first tank body (14), first draft tube (15) that is connected with first tank body (14), first escape pipe (16), is installed in well heater (17) formation in first tank body (14); Be filled with insulation material (23) between said outer cover (13) and first tank body (14), first tank body (14) is filled with the rare-earth metal catalyst (24) as the volatile organic matter catalyzer.
2. the test macro that is used to detect volatile organic matter according to claim 1; It is characterized in that; Said volatile organic matter catalyst reaction device (8) is gone back by outer cover (13), is arranged on first tank body (14), second tank body (46) in the outer cover (13); First draft tube (15) that is connected with first tank body (14), first escape pipe (16); Second draft tube (47) that is connected with second tank body (46), second escape pipe (48), the well heater (17) that is installed in first tank body (14) constitutes, and is filled with the rare-earth metal catalyst (24) as the volatile organic matter catalyzer in second tank body (46); Second draft tube (47) of second tank body (46) is connected with first escape pipe (16) of first tank body (14), is filled with insulation material (23) between said outer cover (13) and first tank body (14).
3. the test macro that is used to detect volatile organic matter according to claim 1 is characterized in that, the temperature of said first tank body (14) inner control is 200-400 ℃.
4. the test macro that is used to detect volatile organic matter according to claim 1; It is characterized in that; Said volatile organic matter filtrator (11) is to be made up of the 3rd tank body (18), the 3rd draft tube (19) that is connected with the 3rd tank body (18), the 3rd escape pipe (20); Be installed with orifice plate or web plate (21) at interval in the 3rd tank body (18), be filled with the filtrate (22) that is used to filter volatile organic matter between adjacent two web plates (21).
5. the test macro that is used to detect volatile organic matter according to claim 1; It is characterized in that; Said flow control and humidification assembled unit (12) are to be made up of the total flow controller (25) that is connected successively with volatile organic matter filtrator (11) export pipeline, humidity control device (26), gas buffer jar (27); The outlet pipe of surge tank (27) is connected with the air intake opening in test storehouse (2); This humidity control device (26) comprises a humidifying unit (28) at least; This humidifying unit (28) is by the 4th tank body (29), is arranged on evaporator (30), primary heater (31) formation in the 4th tank body (29), also is interval with multilayer first orifice plate or web plate (32) in the 4th tank body (29).
6. a kind of test macro that is used to detect volatile organic matter according to claim 5; It is characterized in that; Said humidity control device (26) is by two humidifying unit (28) formation that is connected in parallel; Be connected with a flow controller (33) on one humidifying unit (28) and the pipeline that total flow controller (25) is connected, be connected with a damper (34) on another humidifying unit (28) and the pipeline that total flow controller (25) is connected.
7. a kind of test macro that is used to detect volatile organic matter according to claim 1; It is characterized in that; Between the circulation air path of test storehouse chuck (1) and test storehouse (2) formation, also be provided with an accommodation space (36) by dividing plate (35) formation, this accommodation space (36) separates with circulation air path, is equiped with a circulating fan (37) in the accommodation space (36); The fan blade of circulating fan (37) is located in the test storehouse (2), and drive motor is arranged in the accommodation space (36).
8. the test macro that is used to detect volatile organic matter according to claim 7; It is characterized in that; The outer wall of said test storehouse chuck (1) offers and the corresponding opening of accommodation space (36); This opening is equiped with a heat radiation orifice plate (38), and the afterbody of said drive motor also is equiped with a radiator fan (39).
9. the test macro that is used to detect volatile organic matter according to claim 7; It is characterized in that; Also be equiped with a packoff (42) between the door-plate (40) in said test storehouse (2) and the doorframe (41); Sealing device (42) is to be made up of the flexible liner bar (45) that is successively set on pressing plate (43), O-ring seal (44) between door-plate (40) and the doorframe (41), be arranged in the O-ring seal (44), and flexible liner bar (45) is for containing the foamed silica gel bar of less volatile organic matter or the silica gel strip that hollow structure contains less volatile organic matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101927019A CN101692025B (en) | 2009-09-25 | 2009-09-25 | Test system for detecting volatile organic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101927019A CN101692025B (en) | 2009-09-25 | 2009-09-25 | Test system for detecting volatile organic compounds |
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| Publication Number | Publication Date |
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| CN101692025A CN101692025A (en) | 2010-04-07 |
| CN101692025B true CN101692025B (en) | 2012-03-21 |
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| CN2009101927019A Active CN101692025B (en) | 2009-09-25 | 2009-09-25 | Test system for detecting volatile organic compounds |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102411039B (en) * | 2011-08-06 | 2014-06-04 | 江苏出入境检验检疫局工业产品检测中心 | Testing device of detection precision of environmental cabinet for detecting volatile organic compound |
| CN102323112A (en) * | 2011-08-19 | 2012-01-18 | 东莞市升微机电设备科技有限公司 | Flow-guiding air duct structure of volatile organic matter detection system |
| CN102419274B (en) * | 2011-08-19 | 2013-07-24 | 东莞市升微机电设备科技有限公司 | Orifice-plate-type air duct structure of volatile organic compound detection system |
| CN102608267A (en) * | 2012-03-12 | 2012-07-25 | 东北林业大学 | Artificial board VOC (Volatile Organic Compounds) releasing cabin capable of guaranteeing limit value of background gas concentration of cabin body |
| CN104697942A (en) * | 2013-12-05 | 2015-06-10 | 张双保 | Comparison of determination methods for formaldehyde content of wood-based plates |
| CN106154973A (en) * | 2015-04-20 | 2016-11-23 | 陈小辉 | Array control unit |
| CN106403576B (en) * | 2016-11-25 | 2019-04-12 | 北京华福工程有限公司 | Dry filtrating equipment and Preparation equipment |
| CN107796061A (en) * | 2017-11-23 | 2018-03-13 | 王锦林 | Domestic air compresses filtration purifier |
| CN111257399A (en) * | 2018-11-30 | 2020-06-09 | 中国科学院大连化学物理研究所 | Direct mass spectrum detection device for high-throughput measurement of volatile organic compounds in blood |
| WO2021011497A1 (en) * | 2019-07-12 | 2021-01-21 | Johnson Controls Technology Company | Hvac system with design and operational tool for building infection control |
| CN110508065A (en) * | 2019-09-16 | 2019-11-29 | 长安大学 | A kind of bituminous concrete paver glance coal collection and purification device |
| CN112595559A (en) * | 2020-12-04 | 2021-04-02 | 广东省测试分析研究所（中国广州分析测试中心） | Universal vehicle material volatile organic compound sampling system and detection method |
| CN115248609B (en) * | 2021-12-21 | 2023-06-30 | 山东建筑大学 | VOCs release amount detection climate room temperature and humidity control system and method |
| CN116399652B (en) * | 2023-06-09 | 2023-08-08 | 江苏新锐环境监测有限公司 | Volatile organic compound sampling detection method |
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