CN104977366A - Experiment device with LED lamp for measuring capability of absorbing formaldehyde by material in indoor environment - Google Patents
Experiment device with LED lamp for measuring capability of absorbing formaldehyde by material in indoor environment Download PDFInfo
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- CN104977366A CN104977366A CN201410137653.4A CN201410137653A CN104977366A CN 104977366 A CN104977366 A CN 104977366A CN 201410137653 A CN201410137653 A CN 201410137653A CN 104977366 A CN104977366 A CN 104977366A
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Abstract
The invention provides an experiment device with an LED lamp for measuring the capability of absorbing formaldehyde by a material in an indoor environment. The experiment device consists of a formaldehyde gas generating system, an operation box and a formaldehyde measuring and processing system, wherein the formaldehyde gas generating system comprises an air compressor, a formaldehyde gas generator, a sample dropping opening, a resistor heating plate, a flow meter, a valve I, a humidifier and a valve 2, the operation box comprises a thermometer, a hygrometer, a resistance wire net, a resistance wire temperature adjusting knob, a variable power LED light source, a pressure meter, a safety valve, a speed adjustable fan and a sample arranging disc, the formaldehyde measuring and processing system consists of a valve 3, a gas chromatographic analyzer, a valve 4 and active carbon formaldehyde processor. According to the experiment device model, the indoor environment can be really simulated, and the purposes of safety, environmental protection, and real-time accurate formaldehyde measurement can be achieved.
Description
Technical field
The present invention relates to a kind of use for laboratory device, particularly a kind of environmental simulation experimental apparatus measuring materials adsorption formaldehyde performance.
Background technology
In recent years, the indoor pollution caused due to a large amount of use of finishing material is day by day serious, and formaldehyde is extremely people's concern always in numerous indoor pollutant.Many experts and scholars are devoted to study the material with formaldehyde adsorption property, the detection method measuring materials adsorption formaldehyde performance has dynamic method and static method, wherein static method is also referred to as closed bin method, the method generally can only analog temperature and humidity, the condition of simulation is insufficient untrue, and environmental variance controls inaccurate.Design a kind of can simulate varying environment under measure materials adsorption formaldehyde ability experimental provision contribute to screening, developing the material of the formaldehyde adsorption being more suitable for indoor use.
Summary of the invention
For the problems referred to above, the invention provides a kind of experimental provision measuring materials adsorption degradation of formaldehyde ability, this device is used for the environmental baseline of accurate simulation material formaldehyde adsorption.
The technical solution adopted for the present invention to solve the technical problems is: it is made up of formaldehyde gas generation systems, control box, formaldehyde measurement disposal system.Formaldehyde gas generation systems comprises air compressor machine, formaldehyde gas generator, drips sample mouth, resistance heated plate, flowmeter, valve 1, humidifier, valve 2, and air compressor machine is communicated with formaldehyde gas generator, and formaldehyde gas generator is communicated with flowmeter.Control box comprises thermometer, hygrometer, resistance screen, wire temperature adjusting knob, variable power LED light source, tensimeter, safety valve, speed adjustable fan, setting-out dish, control box left upper portion has injection port and is connected with flowmeter, left lower has steam entry and humidifier communications, middle and upper part, right side has thief hatch and is connected with formaldehyde measurement disposal system, tensimeter, safety valve and wire temperature adjusting knob are equipped with in top, and bottom is provided with slideway; Ways-end connects hatch door; Resistance screen is connected with the wire temperature adjusting knob at top; Setting-out dish is placed on slideway.Formaldehyde measurement disposal system is made up of valve 3, chromatography of gases analyser, valve 4, activated charcoal formaldehyde treated device, and chromatography of gases analyser is communicated with control box by thief hatch, and activated charcoal formaldehyde treated device is connected with chromatography of gases analyser.
The invention has the beneficial effects as follows, use this experimental provision model can real simulation indoor environment; Accurate in real time content of formaldehyde in case to be measured.Formaldehyde gas entrance to be positioned on the left of control box top, mixing advantageously in air and formaldehyde; Tensimeter and safety valve can improve safety coefficient and the serviceable life of this experimental provision; The chromatography of gases analyser of thief hatch and activated charcoal formaldehyde treated device more precisely can obtain experimental data fast, and make experimentation safety and environmental protection more.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is structural representation of the present invention.
In Fig. 1,1. air compressor machine, 2. formaldehyde gas generator, 3. a sample mouth, 4. resistance heated plate, 5. flowmeter, 6. humidifier, 7. injection port, 8. thermometer, 9. hygrometer, 10. steam entry, 11. wire temperature adjusting knobs, 12. resistance screens, 13. control boxs, 14. variable power LED light sources, 15. speed adjustable fans, 16. setting-out dishes, 17. thief hatchs, 18. tensimeters, 19. safety valve, 20. slideways, 21. hatch doors, 22. chromatography of gases analysers, 23. activated charcoal formaldehyde treated devices, 24. valves 1,25. valve 2,26. valve 3,27. valves 4.
Embodiment
During operation, first material is put into setting-out dish (16), by slideway (20) push operation case (13), close hatch door (21) simultaneously.Open the valve 1(24 on injection port (7)), open the valve 3(26 on thief hatch (17) simultaneously), valve-off 4(27).Then a certain amount of formalin is dripped to the sample mouth (3) that drips in formaldehyde gas generator (2), the formaldehyde gas produced after resistance heated plate (4) heating is subject to agitating of air compressor machine (1) and enters in control box (13), and wherein flowmeter (5) can monitor formaldehyde gas flow.Now in control box (13), original gas and unnecessary formaldehyde gas all directly enter activated charcoal formaldehyde treated device (23) by sample tap (17), to ensure the stable gas pressure of whole device.Open humidifier (6), the valve 2(25 fetched boiling water on vapour inlet (10)), pass into water vapor to control box (13), according to the humidity in the vision-control control box (13) of hygrometer (9), make it reach valve-off 2 (25) after desired moisture level; Utilize the air pressure that tensimeter (18) and safety valve (19) come in control operation case (13), in case to be operated, reach required pressure valve-off 1(24) with valve 3(26).According to the reading of thermometer (8), regulating resistance silk temperature adjustment knob (11) carrys out the temperature of regulating resistance silk screen (12), makes control box (13) interior temperature reach temperature required.Open and regulate speed adjustable fan (15) and variable power LED light source (14) to meet requirement to different air velocity and intensity of illumination.Valve 4(27 is opened after the time of requirement of experiment), make the gas in control box (13) enter chromatography of gases analyser (22), to obtain the data of content of formaldehyde in outlet in real time.Tail gas after chromatography of gases analyser (22) is measured can lead to discharge after process in activated charcoal formaldehyde treated device (23).After measurement data, open valve 3(26), discharge after directly the waste gas in control box (13) being passed into activated charcoal formaldehyde treated device (23) process, avoid contaminated air.
Claims (3)
1. be with the indoor environment of LED to measure the experimental provision of materials adsorption formaldehyde ability, it is made up of formaldehyde gas generation systems, control box, formaldehyde measurement disposal system, it is characterized in that, formaldehyde gas generation systems comprises air compressor machine, formaldehyde gas generator, drips sample mouth, resistance heated plate, flowmeter, valve 1, humidifier, valve 2, air compressor machine is communicated with formaldehyde gas generator, and formaldehyde gas generator is communicated with flowmeter.
2. the indoor environment of band LED according to claim 1 measures the experimental provision of materials adsorption formaldehyde ability, it is characterized in that, described control box comprises thermometer, hygrometer, resistance screen, wire temperature adjusting knob, variable power LED light source, tensimeter, safety valve, speed adjustable fan, setting-out dish, control box left upper portion has injection port and is connected with flowmeter, left lower has steam entry and humidifier communications, middle and upper part, right side has thief hatch and is connected with formaldehyde measurement disposal system, tensimeter is equipped with at top, safety valve and wire temperature adjusting knob, bottom is provided with slideway, ways-end connects hatch door, resistance screen is connected with the wire temperature adjusting knob at top, setting-out dish is placed on slideway.
3. the indoor environment of band LED according to claim 1 measures the experimental provision of materials adsorption formaldehyde ability, it is characterized in that, described formaldehyde measurement disposal system is made up of valve 3, chromatography of gases analyser, valve 4, activated charcoal formaldehyde treated device, chromatography of gases analyser is communicated with control box by thief hatch, and activated charcoal formaldehyde treated device is connected with chromatography of gases analyser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137653.4A CN104977366A (en) | 2014-04-08 | 2014-04-08 | Experiment device with LED lamp for measuring capability of absorbing formaldehyde by material in indoor environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137653.4A CN104977366A (en) | 2014-04-08 | 2014-04-08 | Experiment device with LED lamp for measuring capability of absorbing formaldehyde by material in indoor environment |
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| Publication Number | Publication Date |
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| CN104977366A true CN104977366A (en) | 2015-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410137653.4A Pending CN104977366A (en) | 2014-04-08 | 2014-04-08 | Experiment device with LED lamp for measuring capability of absorbing formaldehyde by material in indoor environment |
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| CN (1) | CN104977366A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413393A (en) * | 2015-12-31 | 2016-03-23 | 南京大学环境规划设计研究院有限公司 | Adsorption and desorption bench scale experiment device and use method thereof |
| CN108414681A (en) * | 2018-01-25 | 2018-08-17 | 李勇 | A kind of wall paper removes the detection method of formaldehyde efficiency |
| CN111207976A (en) * | 2020-02-25 | 2020-05-29 | 中国辐射防护研究院 | Environment generation method and system for multi-component mixed gas |
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| CN1789975A (en) * | 2005-11-30 | 2006-06-21 | 上海电力学院 | Preparation method of formaldehyde standard gas |
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| CN102062707A (en) * | 2009-11-13 | 2011-05-18 | 立邦涂料（中国）有限公司 | Method and device for measuring volatile harmful gas decomposing capability |
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Patent Citations (6)
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| CN1789975A (en) * | 2005-11-30 | 2006-06-21 | 上海电力学院 | Preparation method of formaldehyde standard gas |
| CN1877338A (en) * | 2006-07-20 | 2006-12-13 | 中国计量科学研究院 | Dynamic air-distributing device for formaldehyde standard gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105413393A (en) * | 2015-12-31 | 2016-03-23 | 南京大学环境规划设计研究院有限公司 | Adsorption and desorption bench scale experiment device and use method thereof |
| CN108414681A (en) * | 2018-01-25 | 2018-08-17 | 李勇 | A kind of wall paper removes the detection method of formaldehyde efficiency |
| CN111207976A (en) * | 2020-02-25 | 2020-05-29 | 中国辐射防护研究院 | Environment generation method and system for multi-component mixed gas |
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