CN101701953A - Test method for large environment testing cabin - Google Patents
Test method for large environment testing cabin Download PDFInfo
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- CN101701953A CN101701953A CN200910220115A CN200910220115A CN101701953A CN 101701953 A CN101701953 A CN 101701953A CN 200910220115 A CN200910220115 A CN 200910220115A CN 200910220115 A CN200910220115 A CN 200910220115A CN 101701953 A CN101701953 A CN 101701953A
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Abstract
A test method for a large environment testing cabin relates to an environment monitoring method, comprising the steps of: purifying the air in a testing room (9), putting a testing piece into the testing room, guiding the exterior air to a filter (2) under the action of an air compressor (1) and to the testing room (9) after passing by a venture valve (3) and an air inlet (4), guiding the air in the testing room (9) to the testing room under the action of a centrifugal fan (8), indwelling air, collecting the air sample in the testing room (9) by an air exist (11), and then testing the air sample to confirm the volatilizing quantity of volatile organic compound in the testing piece. The invention is applied to the test of volatilizing quantity of volatile organic compound in unit furniture and decorative finishing materials. The condensation phenomenon will not occur in the testing room of the testing cabin. The invention has the advantages of clean air in the cabin, controllable air flow, speedy response to the pressure control in the cabin, steady air speed in the cabin, and reliable testing data.
Description
Technical field
The present invention relates to a kind of method of environmental monitoring, particularly relate to a kind of detection method of large environment test chamber, be applicable to the evaluation of indoor furniture group and decorating and renovating material environment-friendly quality.
Technical background
Furniture is the product closely bound up with people's daily life, and along with improving constantly of socioeconomic growing and people's living standard, furniture industry is flourish, and the market comsupton share constantly increases.Yet the room air pollution problem that wooden furniture and decorating and renovating material cause is also following, and the volatile organic compounds such as formaldehyde that it discharged are the main sources of indoor environmental pollution, can not be ignored in furniture consumption.In recent years, increasing people comes to realise indoor environment to health affected.Room air pollution has become the third-largest pollution that is only second to coal-smoke pollution and petrochemical complex pollution, day by day seriously healthy the and existence of harm humans.The domestic environment that has a safety and Health becomes the focus of public attention.
On furniture item Environmental Safety performance detection method, no matter be exsiccator method or minienvironment test chamber method, all be only to take the sub-fraction of furniture group to detect as sample, testing result can not truly reflect the objectionable impurities release conditions of finished product furniture, detects data and has also lost the practical significance that control furniture pollutes; Simultaneously, the destructive detection also caused very big waste to furniture industry.
Adopting large-scale environmental test chamber (minimum 22m3) method is the most scientific and effective detection means of objectionable impurities burst size detection of household goods, large-scale environmental test chamber is that the simulation indoor environment is tested, be a kind of near the test evaluation method of under the actual user mode of people the objectionable impurities burst size being carried out, its principle of work is as follows: after drying purifies in the test chamber, (monitor temperature under certain test condition, humidity, air velocity etc. in the cabin) with different large-scale furniture (as sofa, cabinet, the floor, the bed etc.) and multiple furniture building materials and ornaments articles for use (as timber, finish coatings, carpet, wallpaper etc.) etc. be put in the indoor actual implementation hatch checking under the equal conditions, and air draught is flow through from specimen surface equably.After the certain time, gather air sample in the cabin, the burst size of objectionable impuritiess such as test formaldehyde, benzene, TVOC.The result that large-scale environmental test chamber method draws is near the objectionable impurities release conditions under the actual behaviour in service of furniture, the result difference of having avoided varying environment to test, increased the confidence level that detects data, therefore the numerical value that obtains also has most actual directive significance, really accomplishes safety, healthy, environmental protection.
In China, development for large-scale environmental test chamber still is in the starting stage, wherein have many deficiencies: 1, environmental chamber is when testing sample, forbid the existence of free water in the test cabinet, this installs on the present structural design, heat interchanger generally is installed in the test cabinet, and the surface of heat interchanger has the condensation existence, and this just causes to test result and departs from; 2, pure air is when the test chamber top enters test cabinet, and air-flow must keep evenly, stable, and can not effectively guarantee in the present structural design.
Summary of the invention
The object of the present invention is to provide the method for testing of a kind of test data accuracy height, good reproducibility, error circlet border test chamber.Be intended to solve the accurate mensuration of large-scale environmental test chamber to volatile poisonous and harmful substance burst size in furniture and the decorating and renovating material.
The objective of the invention is to be achieved through the following technical solutions:
A kind of detection method of large environment test chamber, be used for the test of furniture group and decorating and renovating material volatile organic compounds volatile quantity, this test process is as follows: at first, with the test cabinet inner air-cleaning, again test specimen to be measured is put into test cabinet, extraneous air enters filtrator under the effect of air compressor, by venturi valve and air intake opening after test cabinet top four layer of air homogenizing plates enter test cabinet, the test room air pushes up equal ballasting through the circulation air path return capsule under the effect of centrifugal blower, enter test cabinet once more by four layer of air homogenizing plates, air more than needed is discharged out of my cabin through the gas outlet in the test cabinet, the temperature of test cabinet is by the control of the moving air in the nested interlayer of test chamber, heat interchanger and interlayer centrifugal blower are installed in the nested interlayer, heat interchanger links to each other with test chamber handpiece Water Chilling Units outward, and the air of indwelling is by gas outlet collecting test room air sample, air sample is tested, thereby determined to test the volatile quantity of volatile organic compounds in the test specimen.
The detection method of described a kind of large environment test chamber, its described test cabinet inner air-cleaning is formed purification plant by air compressor, filtrator, venturi valve and air intake opening.
The detection method of described a kind of large environment test chamber, its described heat interchanger is contained in the nested interlayer, and the temperature of test cabinet adopts nested type control.
Advantage of the present invention and good effect are:
The method of testing of a kind of test data accuracy height, good reproducibility, error circlet border test chamber is provided.All four layers of homogenizing plate structure of ballasting have avoided air to form eddy current in the cabin, have guaranteed the even, stable of test indoor air stream; Test cabinet adopts nested type temperature control structure, has avoided the existence of free water, has guaranteed the accurate, reliable of test data.
Description of drawings
Accompanying drawing is an environmental test chamber principle schematic of the present invention.
Embodiment
The present invention is the environmental chamber that is used for furniture group and the test of decorating and renovating material volatile organic compounds volatile quantity, by air cleaning system, test cabinet, temperature and humidity control system and wind circulating system constitute: air cleaning system is by air compressor 1, filtrator 2, venturi valve 3 and air intake opening 4 are formed, four layer of air homogenizing plates 6 enter test cabinet 9 to outdoor air after the purification from the test cabinet top, air in the test cabinet 9 returns the test chamber top through circulation air path 5 under the effect of centrifugal blower 8, continue circulation, air more than needed 11 are discharged out of my cabin through the gas outlet in the test cabinet 9.The outer handpiece Water Chilling Units 7 of test chamber is connected with heat interchanger 13 in the nested interlayer 12, in nested interlayer 12 interlayer centrifugal blower 10 is housed, and promotes air flow in the interlayer, thereby finishes the temperature control to test cabinet.The equal ballasting in test cabinet top adopts four layers of equal flow structure.Heat interchanger 13 is contained in the nested interlayer 12.The temperature of test cabinet adopts nested type control.Test cabinet 9 is put into test cabinet with test specimen to be measured after pure air purifies certain hour.Extraneous air enters filtrator 2 under the effect of air compressor 1, by venturi valve 3 and air intake opening 4 after test cabinet top four layer of air homogenizing plates 6 enter test cabinet 9.Air push up equal ballasting through circulation air path 5 return capsules in the test cabinet 9 under the effect of centrifugal blower 8, enter test cabinet once more by four layer of air homogenizing plates 6, and air more than needed 11 is discharged out of my cabin through the gas outlet in the test cabinet.The temperature of test cabinet is equipped with heat interchanger 13 and interlayer centrifugal blower 10 by the moving airs control in the nested interlayer 12 of test chamber in the nested interlayer, heat interchanger 13 links to each other with test chamber handpiece Water Chilling Units 7 outward.Behind the test certain hour,, air sample is tested, thereby determined to test the volatile quantity of volatile organic compounds in the test specimen by air sample in the collecting test chambers 9 11, gas outlet.
Claims (3)
1. the detection method of a large environment test chamber, be used for the test of furniture group and decorating and renovating material volatile organic compounds volatile quantity, it is characterized in that: this test process is as follows: at first, with test cabinet (9) inner air-cleaning, again test specimen to be measured is put into test cabinet, extraneous air enters filtrator (2) under the effect of air compressor (1), by venturi valve (3) and air intake opening (4) after test cabinet top four layer of air homogenizing plates (6) enter test cabinet (9), the interior air of test cabinet (9) pushes up equal ballasting through circulation air path (5) return capsule under the effect of centrifugal blower (8), enter test cabinet once more by four layer of air homogenizing plates (6), in the test cabinet air more than needed through the gas outlet (11) discharge out of my cabin, the temperature of test cabinet is by the control of the moving air in the nested interlayer (12) of test chamber, heat interchanger (13) and interlayer centrifugal blower (10) are installed in the nested interlayer, heat interchanger (13) links to each other with test chamber handpiece Water Chilling Units (7) outward, the air of keeping somewhere, by the interior air sample in collecting test chamber, gas outlet (11) (9), air sample is tested, thereby determined to test the volatile quantity of volatile organic compounds in the test specimen.
2. the detection method of a kind of large environment test chamber according to claim 1 is characterized in that: described test cabinet (9) inner air-cleaning, form purification plant by air compressor (1), filtrator (2), venturi valve (3) and air intake opening (4).
3. the detection method of a kind of large environment test chamber according to claim 1 is characterized in that: described heat interchanger (13) is contained in the nested interlayer (12), and the temperature of test cabinet adopts nested type control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102201150A CN101701953B (en) | 2009-11-24 | 2009-11-24 | Test method for large environment testing cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102201150A CN101701953B (en) | 2009-11-24 | 2009-11-24 | Test method for large environment testing cabin |
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| Publication Number | Publication Date |
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| CN101701953A true CN101701953A (en) | 2010-05-05 |
| CN101701953B CN101701953B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102201150A Expired - Fee Related CN101701953B (en) | 2009-11-24 | 2009-11-24 | Test method for large environment testing cabin |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293271A (en) * | 2012-02-22 | 2013-09-11 | 上海微电子装备有限公司 | Pollution testing device and method |
| CN103645063A (en) * | 2013-12-07 | 2014-03-19 | 河南省建筑科学研究院有限公司 | Environmental test chamber system |
| CN106324135A (en) * | 2016-08-19 | 2017-01-11 | 广东省珠海市质量计量监督检测所 | Test apparatus and test method for volatiles at imaging equipment |
| CN109632404A (en) * | 2018-12-07 | 2019-04-16 | 佛山科学技术学院 | A kind of VOC acquisition device and acquisition method |
-
2009
- 2009-11-24 CN CN2009102201150A patent/CN101701953B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293271A (en) * | 2012-02-22 | 2013-09-11 | 上海微电子装备有限公司 | Pollution testing device and method |
| CN103293271B (en) * | 2012-02-22 | 2016-08-03 | 上海微电子装备有限公司 | A kind of Contamination measurement device and method |
| CN103645063A (en) * | 2013-12-07 | 2014-03-19 | 河南省建筑科学研究院有限公司 | Environmental test chamber system |
| CN106324135A (en) * | 2016-08-19 | 2017-01-11 | 广东省珠海市质量计量监督检测所 | Test apparatus and test method for volatiles at imaging equipment |
| CN106324135B (en) * | 2016-08-19 | 2019-11-29 | 广东省珠海市质量计量监督检测所 | The test device and its test method of imaging device volatile matter |
| CN109632404A (en) * | 2018-12-07 | 2019-04-16 | 佛山科学技术学院 | A kind of VOC acquisition device and acquisition method |
| CN109632404B (en) * | 2018-12-07 | 2021-08-06 | 佛山科学技术学院 | VOC (volatile organic compound) acquisition device and method |
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| Publication number | Publication date |
|---|---|
| CN101701953B (en) | 2012-11-28 |
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Granted publication date: 20121128 Termination date: 20151124 |