CN201555839U - Large-size environmental test chamber - Google Patents
Large-size environmental test chamber Download PDFInfo
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- CN201555839U CN201555839U CN2009202486108U CN200920248610U CN201555839U CN 201555839 U CN201555839 U CN 201555839U CN 2009202486108 U CN2009202486108 U CN 2009202486108U CN 200920248610 U CN200920248610 U CN 200920248610U CN 201555839 U CN201555839 U CN 201555839U
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Abstract
The utility model provides a large-size environmental test chamber relating to an environmental monitoring and detecting device. The environmental test chamber consists of an air purification system, a testing room, a temperature and humidity control system and a circulated air system, wherein the air purification system comprises an air compressor (1), a filter (2), a Venturi valve (3) and an air inlet (4); and a water chilling unit (7) outside a test chamber of the environmental test chamber is connected with a heat exchanger (13) in a nested interlayer (12) in which an interlayer centrifugal fan (10) is installed, a pressure equalizing chamber at the top of the testing room adopts a four-layer flow equalizing structure, and the heat exchanger (13) is installed in the nested interlayer (12). The test chamber has the advantages of no condensation phenomenon in the testing room, clean chamber-entering air, controllable air volume, quick response of pressure control in the chamber and uniform and stable air speed in the chamber, thereby ensuring test data to be reliable and true. The large-size environmental test chamber solves the accurate measurement on the release amount of volatile toxic and harmful substances in furniture and decorating and finishing materials.
Description
Technical field
The utility model relates to a kind of environmental monitoring, pick-up unit, and particularly a kind of structural design of indoor environment testing cabinet is 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 purpose of this utility model is to provide a kind of test data accuracy height, good reproducibility, error circlet border test chamber.For solving 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 purpose of this utility model is achieved through the following technical solutions:
The large environment test chamber, by the environmental test chamber that air cleaning system, test cabinet and temperature and humidity control system and wind circulating system constitute, air cleaning system comprises air compressor, filtrator, venturi valve and air intake opening; The outer handpiece Water Chilling Units of the test chamber of its environmental test chamber is connected with heat interchanger in the nested interlayer, in nested interlayer centrifugal blower is housed, and the equal ballasting in test cabinet top adopts four layers of equal flow structure, and heat interchanger is contained in the nested interlayer.
Described large environment test chamber, its described test cabinet inner top is provided with four layer of air homogenizing plates.
Described large environment test chamber, its described test cabinet inner top, sidepiece are provided with circulation air path, communicate with centrifugal blower.
Described large environment test chamber, its described test cabinet is provided with and the gas outlet that communicates out of my cabin.
Advantage of the present utility model and effect are:
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 structural representation of the present utility model.
Embodiment
The utility model 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 (4)
1. large environment test chamber, it is characterized in that: by the environmental test chamber that air cleaning system, test cabinet and temperature and humidity control system and wind circulating system constitute, air cleaning system comprises air compressor (1), filtrator (2), venturi valve (3) and air intake opening (4); The outer handpiece Water Chilling Units (7) of the test chamber of its environmental test chamber is connected with the interior heat interchanger of nested interlayer (12) (13), interlayer centrifugal blower (10) is housed in nested interlayer (12), the equal ballasting in test cabinet top adopts four layers of equal flow structure, and heat interchanger (13) is contained in the nested interlayer (12).
2. large environment test chamber according to claim 1 is characterized in that: described test cabinet (9) inner top is provided with four layer of air homogenizing plates (6).
3. large environment test chamber according to claim 1 is characterized in that: described test cabinet (9) inner top, sidepiece are provided with circulation air path (5), communicate with centrifugal blower (8).
4. large environment test chamber according to claim 1 is characterized in that: described test cabinet (9) is provided with and the gas outlet that communicates out of my cabin (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202486108U CN201555839U (en) | 2009-11-24 | 2009-11-24 | Large-size environmental test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202486108U CN201555839U (en) | 2009-11-24 | 2009-11-24 | Large-size environmental test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201555839U true CN201555839U (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202486108U Expired - Fee Related CN201555839U (en) | 2009-11-24 | 2009-11-24 | Large-size environmental test chamber |
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| CN (1) | CN201555839U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721633A (en) * | 2011-03-31 | 2012-10-10 | 富泰净化科技(昆山)有限公司 | Testing machine of filter screen |
| 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) |
| CN105628869A (en) * | 2015-12-25 | 2016-06-01 | 中国建筑材料科学研究总院 | Material purification performance testing device |
| 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 |
| CN108144657A (en) * | 2017-12-13 | 2018-06-12 | 中国北方车辆研究所 | A kind of antifreeze condensation-proof apparatus in climatic environment cabin and method |
-
2009
- 2009-11-24 CN CN2009202486108U patent/CN201555839U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721633A (en) * | 2011-03-31 | 2012-10-10 | 富泰净化科技(昆山)有限公司 | Testing machine of filter screen |
| 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 |
| CN105628869A (en) * | 2015-12-25 | 2016-06-01 | 中国建筑材料科学研究总院 | Material purification performance testing device |
| 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 |
| CN108144657A (en) * | 2017-12-13 | 2018-06-12 | 中国北方车辆研究所 | A kind of antifreeze condensation-proof apparatus in climatic environment cabin and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20121124 |