CN101995452B - Test chamber for rapidly detecting release amount of formaldehyde in artificial board and product - Google Patents
Test chamber for rapidly detecting release amount of formaldehyde in artificial board and product Download PDFInfo
- Publication number
- CN101995452B CN101995452B CN2010105183316A CN201010518331A CN101995452B CN 101995452 B CN101995452 B CN 101995452B CN 2010105183316 A CN2010105183316 A CN 2010105183316A CN 201010518331 A CN201010518331 A CN 201010518331A CN 101995452 B CN101995452 B CN 101995452B
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- Prior art keywords
- test cabin
- cabin body
- methanal
- wood
- burst size
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000012360 testing method Methods 0.000 title claims abstract description 77
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 235000019256 formaldehyde Nutrition 0.000 claims description 35
- 239000002023 wood Substances 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 7
- 230000001473 noxious effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
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Abstract
The invention discloses a test chamber for rapidly detecting the release amount of formaldehyde in an artificial board and product. The test chamber comprises a clean and dry air inlet device which is at least connected with a detection unit; the detection unit comprises a test chamber body and a controller; the controller is connected with a first temperature sensor for detecting the temperature in the test chamber body and a pressure sensor for detecting the temperature in the test chamber body; an exhaust pipeline of the test chamber body is at least provided with a sampling port; an outer wall of the test chamber body is provided with a first heater; and an exhaust or intake pipeline of the test chamber body is further connected with a dew point sensor which is connected with the controller. The test chamber is convenient to use, has high detection precision, can accurately control the temperature and humidity in the test chamber and can effectively meet the requirement of test environment.
Description
Technical field
The present invention relates to a kind of device for the detection of PARA FORMALDEHYDE PRILLS(91,95) burst size, relate in particular a kind of can be according to the needs of test condition, the test cabin that is used for wood-based plate and goods burst size of methanal fast detecting that humidity, the temperature of experimental enviroment automatically adjusted.
Background technology
Along with improving constantly of people's living standard, people also are greatly improved to the requirement of environmental quality, especially to the environmental index of living environment, are not subjected to 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 carry out fast detecting to release rate and the release characteristics of noxious materials such as indoor material and the contained formaldehyde of product, especially detect in certain hot environment, thereby obtain qualified indoor material and product, make people that a good living environment be arranged.Thereby need provide a testing environment that meets the requirements, improve the precision that detects, detection system is when detecting, need be to the temperature in the experimental cabin, humidity be detected control, existent method has temperature control, humidity control not to reach requirement in experimental cabin, does not have humidity sensor to detect the interior humidity of experimental cabin.Pressure control is unstable, and temperature deviation is big in the gland bonnet of experimental cabin and inlet end temperature and the experimental cabin, and testing result is unreliable.
Summary of the invention
The objective of the 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 the experimental cabin bulk temperature even, humidity control is reliable, can effectively satisfy the test cabin that is used for people's making sheet and goods burst size of methanal fast detecting of experimental enviroment needs.
For achieving the above object, technical scheme provided by the invention is as follows: construct a kind of test cabin for wood-based plate and goods burst size of methanal fast detecting, comprise the clean dry air admission gear, described clean dry air admission gear is connected with a detecting unit at least, this detecting unit comprises the test cabin body, also comprise a controller, this controller is connected with first temperature sensor for detection of temperature in the test cabin body, be connected with the pressure transducer for detection of temperature in the test cabin body, have a sample tap on the gas exhaust piping of test cabin body at least, be equiped with primary heater on the outer wall of test cabin body.
Also be equiped with on the test cabin body of described detecting unit for the pressure relief valve of regulating test cabin body internal pressure.
Also be equiped with dew point transducer on the gas exhaust piping of described test cabin body, this dew point transducer is connected with controller.
Also comprise the insulation jacket for ccontaining described detecting unit.
The beneficial effect of the test cabin for wood-based plate and goods burst size of methanal fast detecting of the present invention is: by constructing a clean dry air admission gear, described clean dry air admission gear is connected with a detecting unit at least, this detecting unit comprises the test cabin body, also comprise a controller, this controller is connected with first temperature sensor for detection of temperature in the test cabin body, be connected with the pressure transducer for detection of temperature in the test cabin body, have a sample tap on the gas exhaust piping of test cabin body at least, be equiped with primary heater on the outer wall of test cabin body.Take a sample by sample tap, formaldehyde in the experimental cabin is detected, owing to adopt the pure air gas handling system can improve the cleanliness factor that nature enters the air in the experimental cabin greatly, effectively protected the confirmatory test environment, thereby improved the precision that detects greatly, by on described gas outlet or clean dry air admission gear and pipeline that the experimental cabin body is connected, also being connected with a dew point transducer, and in controller, search the corresponding air moisture content of this dewpoint temperature automatically; The corresponding air moisture content of dewpoint temperature of air in the detected test cabin body of the dew point transducer gas exhaust piping be multiply by 100% relative humidity that can calculate in the experimental cabin with the ratio that temperature sensor detects the corresponding air moisture content of temperature in the experimental cabin, thereby efficiently solve when carrying out the high temperature detection, the humidity sensor of traditional detection system is when low humidity detects, the technical matters that display error is big makes this Humidity Detection system can carry out utmost point low humidity detection under the high temperature.
Below in conjunction with drawings and Examples the test cabin for wood-based plate and goods burst size of methanal fast detecting of the present invention is described further:
Description of drawings
Fig. 1 is the vertical view that the present invention is used for the test cabin of wood-based plate and goods burst size of methanal fast detecting;
Fig. 2 is the amplification view of the pressure relief valve of the present invention's test cabin of being used for wood-based plate and goods burst size of methanal fast detecting;
Fig. 3 is the system construction drawing of the clean dry air admission gear of the present invention's test cabin of being used for wood-based plate and goods burst size of methanal fast detecting.
Embodiment
Below the most preferred embodiment of the test cabin for wood-based plate and goods burst size of methanal fast detecting of the present invention, therefore do not limit protection scope of the present invention.
With reference to Fig. 1, Fig. 2, a kind of test cabin for wood-based plate and goods burst size of methanal fast detecting is provided, comprise clean dry air admission gear 1, described clean dry air admission gear 1 is connected with a detecting unit 2 at least, this detecting unit 2 comprises test cabin body 3, also comprise a controller 4, this controller 4 is connected with first temperature sensor 5 for detection of temperature in the test cabin body 3, be connected with the pressure transducer 6 for detection of temperature in the test cabin body 3, have a sample tap 7 on the gas exhaust piping of test cabin body 3 at least, be equiped with primary heater 8 on the outer wall of test cabin body 3.
Also be equiped with the three-temperature sensor 40 for detection of the external temperature of test cabin body 3 on the outer wall of described test cabin body 3 or on the primary heater 8.
Also be equiped with the stainless steel orifice plate on the pipeline of described experimental cabin body 3 air intake opening ends, air-flow is evenly mixed.
Described clean dry air admission gear 1 is by being connected air dry-set 10 on the air inlet pipeline, constituting except formaldehyde plant 11, pressure regulator valve 12, flow controller 13, air dry-set 10, can carry out conversion except the erection sequence of formaldehyde plant 11, pressure regulator valve 12, described removing on the outer wall of formaldehyde plant 11 also can be equiped with primary heater, can further strengthen except formaldehyde plant 11 except the formaldehyde effect, potassium permanganate is housed as oxygenant in the formaldehyde plant 11, do not adopt water to remove formaldehyde, can reduce the moisture content in the pure air that enters in the experimental cabin body 3.
Also be equiped with on the test cabin body 3 of described detecting unit 2 for the pressure relief valve 14 of regulating test cabin body 3 internal pressures, described pressure relief valve 14 is to be made of the exhaust metal tube 21 that is connected with experimental cabin body 3 inside, the pressure relief valve counterweight 22 of exhausr port one end that is installed in this exhaust metal tube 21, at exhausr port one end of this exhaust metal tube 21 sealing gasket 23 is housed also.
Also be equiped with dew point transducer 15 on the outlet pipe of described test cabin body 3, this dew point transducer 15 is connected with controller 4, described dew point transducer 15 also can be installed on the air inlet pipeline of experimental cabin body 3, and be installed in the back of the air dry-set 10 of clean dry air admission gear 1, detect by the humidity in 19 pairs of experimental cabin bodies of this dew point transducer 1, by in controller 4, searching the corresponding air moisture content of this dewpoint temperature automatically; The corresponding air moisture content of dewpoint temperature of air in dew point transducer 15 detected test cabin body 3 gas exhaust pipings be multiply by 100% relative humidity that can calculate in the experimental cabin with the ratio that first temperature sensor 5 detects the corresponding air moisture content of temperature in the experimental cabin.
The temperature of described test cabin body 3 inner control is 50-80 ℃, and temperature the best of described test cabin body 3 inner control is 60 ℃.
Also comprise the insulation jacket 16 for ccontaining described detecting unit 2, be equiped with secondary heater 33 in the insulation jacket 16, also be equiped with second temperature sensor 9 for detection of temperature in the insulation jacket 16 in the insulation jacket 16, the temperature of described insulation jacket 16 inner control is 50-80 ℃, temperature the best of described insulation jacket 16 inner control is 60 ℃, enhancing is to experimental cabin body 3 heat insulation effects, energy savings.
Also be connected with a heat-exchange device 17 on the experimental cabin body 3 of described detecting unit 2 and the pipeline that clean dry air admission gear 1 is connected, this heat-exchange device 17 is arranged in the insulation jacket 16, the air that enters in the experimental cabin body 3 is carried out preheating, be conducive to reduce the temperature fluctuation in the experimental cabin body 3, improve the precision of test.
Also comprise an air stirring apparatus 18, this air stirring apparatus 18 is to be made of the motor 19 that is arranged on described insulation jacket 16 tops, the blower fans 20 that are installed in the described insulation jacket 16, described blower fan 20 is rotationally connected with motor 19, air to insulation jacket 16 stirs, and makes the temperature in the insulation jacket 16 even.
With reference to Fig. 3, described clean dry air admission gear 1 is also by the water tank 55 that is connected on the air inlet pipeline, the air compressor 56 that is connected with water tank 55 top escape pipes, the filtrator 57 that is connected with air compressor 56 gas outlets, exsiccator 58, pressure-regulating valve 59, flow controller 13 constitutes, filling material 60 is equipped with in described water tank 55 inside, this filling material 60 is metal packing or non-metallic fillers, also be equiped with orifice plate 61 in the described water tank 55, clean dry air admission gear 1 removes outside airborne formaldehyde by water tank 55 water earlier, again through air compressor 56 compressions, dewater through filtrator 57, oil, obtain formaldehydeless dried compressed air after the exsiccator drying, the inner filling material of installing of water tank, water fully mixes with air, improves except formaldehyde efficient.
Above-described embodiment is preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (12)
1. test cabin that is used for wood-based plate and goods burst size of methanal fast detecting, comprise clean dry air admission gear (1), it is characterized in that, described clean dry air admission gear (1) is connected with a detecting unit (2) at least, this detecting unit (2) comprises test cabin body (3), also comprise a controller (4), this controller (4) is connected with first temperature sensor (5) for detection of the interior temperature of test cabin body (3), with be connected for detection of the pressure transducer (6) in the test cabin body (3), have a sample tap (7) on the gas exhaust piping of test cabin body (3) at least, be equiped with primary heater (8) on the outer wall of described test cabin body (3).
2. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 1, it is characterized in that described clean dry air admission gear (1) is by being connected air dry-set (10) on the air inlet pipeline, constituting except formaldehyde plant (11), pressure regulator valve (12), flow controller (13).
3. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 1, it is characterized in that, also be equiped with on the test cabin body (3) of described detecting unit (2) for the pressure relief valve (14) of regulating test cabin body (3) internal pressure.
4. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 2, it is characterized in that, also be equiped with dew point transducer (15) on the outlet pipe of described test cabin body (3), this dew point transducer (15) is connected with controller (4), perhaps described dew point transducer (15) is installed on the air inlet pipeline of experimental cabin body (3), and is installed in the back of the air dry-set (10) of clean dry air admission gear (1).
5. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 1, it is characterized in that, also comprise the insulation jacket (16) for ccontaining described detecting unit (2), be equiped with secondary heater (33) in the insulation jacket (16), also be equiped with second temperature sensor (9) for detection of the interior temperature of control insulation jacket (16) in the insulation jacket (16).
6. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 5, it is characterized in that, also be connected with a heat-exchange device (17) on the experimental cabin body (3) of described detecting unit (2) and the pipeline that clean dry air admission gear (1) is connected, this heat-exchange device (17) is arranged in the insulation jacket (16).
7. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 5, it is characterized in that, also comprise an air stirring apparatus (18), this air stirring apparatus (18) is by the motor that is arranged on described insulation jacket (16) (19), is installed in blower fan (20) formation in the described insulation jacket (16), and described blower fan (20) is connected with motor (19).
8. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 3, it is characterized in that, described pressure relief valve (14) is to be made of the gas outlet (21) that is connected with experimental cabin body (3) inside, the pressure relief valve counterweight (22) of exhausr port one end that is installed in this pipe (21), at exhausr port one end of this gas outlet (21) sealing gasket (23) is housed also.
9. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 1, it is characterized in that, also be equiped with the three-temperature sensor (40) for detection of the external temperature of test cabin body (3) on the outer wall of described test cabin body (3) or on the primary heater (8).
10. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 1 is characterized in that, also is equiped with the stainless steel orifice plate on the pipeline of described experimental cabin body (3) air intake opening end.
11. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 1, it is characterized in that, described clean dry air admission gear (1) is also by the water tank (55) that is connected on the air inlet pipeline, the air compressor (56) that is connected with water tank (55) top escape pipe, the filtrator (57) that is connected with air compressor (56) gas outlet, exsiccator (58), pressure-regulating valve (59), flow controller (13) constitute.
12. the test cabin for wood-based plate and goods burst size of methanal fast detecting according to claim 11, it is characterized in that, filling material (60) is equipped with in described water tank (55) inside, this filling material (60) is metal packing or non-metallic fillers, also is equiped with orifice plate (61) in the described water tank (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105183316A CN101995452B (en) | 2010-10-25 | 2010-10-25 | Test chamber for rapidly detecting release amount of formaldehyde in artificial board and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105183316A CN101995452B (en) | 2010-10-25 | 2010-10-25 | Test chamber for rapidly detecting release amount of formaldehyde in artificial board and product |
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| Publication Number | Publication Date |
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| CN101995452A CN101995452A (en) | 2011-03-30 |
| CN101995452B true CN101995452B (en) | 2013-07-10 |
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| CN2010105183316A Expired - Fee Related CN101995452B (en) | 2010-10-25 | 2010-10-25 | Test chamber for rapidly detecting release amount of formaldehyde in artificial board and product |
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| CN102506924A (en) * | 2011-12-21 | 2012-06-20 | 东莞市升微机电设备科技有限公司 | Safety test box |
| CN104697942A (en) * | 2013-12-05 | 2015-06-10 | 张双保 | Comparison of determination methods for formaldehyde content of wood-based plates |
| CN106076026B (en) * | 2016-08-26 | 2017-12-15 | 赛洛克流体设备成都有限公司 | A kind of tapping equipment with the changeable bleed outlet of detection means |
| CN106440226A (en) * | 2016-10-18 | 2017-02-22 | 西南大学 | Formaldehyde remover |
| CN106902707B (en) * | 2017-04-07 | 2022-10-21 | 东莞市升微机电设备科技有限公司 | VOC, formaldehyde evaporate and charge chamber with higher speed |
| CN107525888B (en) * | 2017-07-04 | 2020-07-31 | 安徽天使服装服饰有限责任公司 | School uniform volatile matter detection device |
| CN107843724A (en) * | 2017-11-01 | 2018-03-27 | 陈阁 | A kind of air circulating type artificial board formaldehyde test device |
| CN108535424B (en) * | 2018-07-10 | 2023-12-29 | 重庆威尔震昌科技股份有限公司 | Test piece VOC release detection device and system for removing formaldehyde in air |
| CN110244031B (en) * | 2019-06-28 | 2021-02-12 | 江苏省环境科学研究院 | Wood-based plate VOC releases survey device |
| CN110531034A (en) * | 2019-09-27 | 2019-12-03 | 苏州方正工程技术开发检测有限公司 | A kind of intelligent regulating box measuring burst size of methanal |
| CN112696769A (en) * | 2020-12-15 | 2021-04-23 | 亚楠(南京)环保科技有限公司 | Formaldehyde air purifier |
| CN114295616B (en) * | 2022-03-11 | 2022-05-10 | 西南石油大学 | Casing detection equipment based on image recognition |
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