CN104020253A - Device and method for examining formaldehyde gas adsorbing-removing effects of material - Google Patents
Device and method for examining formaldehyde gas adsorbing-removing effects of material Download PDFInfo
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- CN104020253A CN104020253A CN201410205630.2A CN201410205630A CN104020253A CN 104020253 A CN104020253 A CN 104020253A CN 201410205630 A CN201410205630 A CN 201410205630A CN 104020253 A CN104020253 A CN 104020253A
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Abstract
The invention relates to a device and a method for examining formaldehyde gas adsorbing-removing effects of a material. The device comprises an adsorbing device and a tail gas absorbing device, wherein the adsorbing device comprises a sealable transparent glass device, a knob switch, a colloid flexible pipe and a formaldehyde detection instrument; the tail gas absorbing device comprises an absorbing bottle with a double-hole rubber plug, a guide tube I, a guide tub II and a vacuum pump. The method comprises the following steps: putting a to-be-tested material into the sealable transparent glass device for adsorbing and removing formaldehyde gas, and switching on the formaldehyde detection instrument to measure the numerical value of the concentration of gas in the sealable transparent glass device at set intervals, wherein the concentration of formaldehyde gas is changed with time; after detection, absorbing tail gas by virtue of absorption liquid, extracting the formaldehyde gas in the device by virtue of the vacuum pump for later use. The method is simple to operate, is safe and reliable and is a convenient and rapid detection measure.
Description
Technical field
The invention belongs to air detection technical field, relate in particular to a kind of device and method of inspection of experimental material Adsorption formaldehyde gas effect.
Background technology
The formaldehyde that new house finishing causes has become " the stealthy killer " of harm humans life, when indoor formaldehyde content reaches 30ml/m
3time, can cause people dead immediately, be 3-15 the deenergized period of formaldehyde, the health that is threatening lentamente the mankind for a long time.Newly-decorated house is owing to having and much containing formaldehyde in the material using, mostly can be because formaldehyde volatilization causes indoor formaldehyde to exceed standard, particularly summer and use in winter air-conditioning also can make formaldehyde volatilization double, cause the long-term severe contamination of indoor environment, a lot of families all can take some measures to reduce indoor formaldehyde content, as use environmental protection finishing material, at indoor some products of removing formaldehyde etc. of putting.The product of removing formaldehyde on current market is varied, and effect is also very different, and performance how to check these products to remove is a problem to be solved.Formaldehyde poison, during check, equipment should seal, and carries out vent gas treatment measure, therefore in the urgent need to a kind of verifying attachment and the method for inspection of Portable safety are provided.
Summary of the invention
The object of the present invention is to provide a kind of device and the method for inspection of experimental material Adsorption formaldehyde gas effect, thereby solve the problem existing in background technology.
Technical matters solved by the invention realizes by the following technical solutions:
A kind of device of experimental material Adsorption formaldehyde gas effect, comprise adsorbent equipment and device for absorbing tail gas, it is characterized in that: described adsorbent equipment comprises salable clear glass device, rotary switch, colloid flexible pipe, methylene oxide detecting instrument, described salable clear glass device lower opening place is provided with rotary switch, one end of described colloid flexible pipe is connected with rotary switch, and the other end of colloid flexible pipe is connected with methylene oxide detecting instrument; Described device for absorbing tail gas comprises absorption bottle, conduit I, conduit II, the vacuum pump with double-hole rubber plug; Absorption bottle is stretched into through a rubber consent of absorption bottle in one end of described conduit II, and one end of described conduit I is concordant with bottleneck through another rubber consent of absorption bottle, and the other end of conduit I is connected with vacuum pump.
Tail gas absorption liquid is housed in described absorption bottle, and described tail gas absorption liquid is that liquor potassic permanganate drips dilute sulfuric acid, and pH value is 2-3.
The part that in described device for absorbing tail gas, conduit II stretches into the tail gas absorption liquid of absorption bottle is provided with some apertures.
A method of inspection for experimental material Adsorption formaldehyde gas effect, specifically comprises the steps:
(1) in a certain amount of formalin leaves salable reagent bottle in, place and as formaldehyde gas, gather source in 1 day, during check, take top tank air in reagent bottle;
(2) first the sorbing material that cuts into fritter is put into salable clear glass device, then extracted formaldehyde gas and inject from the bottleneck of salable clear glass device top, do encapsulation process;
(3) will open methylene oxide detecting instrument, then rotary switch will be opened, rock gently salable clear glass device, formaldehyde gas is evenly scattered, observe methylene oxide detecting instrument, after stable reading, record first formaldehyde stabilizing gas concentration readings, then rotary switch is closed;
(4) after 10min, just rotary switch is opened, read second numerical value, every 10min, read a numerical value, when detecting reading at every turn, outwards winding rotary switch, after reading, close, m-concentration absorption figure when numerical value can be made during more than 5, draws the absorption trend of formaldehyde and the adsorption rate of different period formaldehyde;
(5) after end to be detected, device for absorbing tail gas is communicated with adsorbent equipment, is about to methylene oxide detecting instrument and takes off, the one end of conduit II being stretched out to absorption bottle is connected with colloid flexible pipe;
(6) the formaldehyde tail gas in salable clear glass device absorbs by the tail gas absorption liquid in absorption bottle;
(7) vacuum pump is evacuated to-0.07KPa--0.01KPa, vacuum pump is extracted by the aperture transmission negative pressure of conduit II the remaining formaldehyde tail gas not absorbing cleanly in salable clear glass device out, the aperture of conduit II can increase the contact area of formaldehyde gas and tail gas absorption liquid, preventing from vacuumizing liquor potassic permanganate while processing formaldehyde tail gas is inhaled in vacuum pump, vacuum pump continuous drawing three times, formaldehyde tail gas is extracted totally, in order to detecting next time.
The present invention has following beneficial effect:
Because formaldehyde is toxic gas, during detection, need guarantee it is sealed environment, and need carry out vent gas treatment, avoid testing staff's health to damage, the device of a kind of experimental material Adsorption formaldehyde gas effect provided by the invention comprises adsorbent equipment and exhaust gas processing device, and the method for inspection of the carrying out by this kind of device is simple to operate, safe and reliable, be a kind of simple and direct detection means that facilitates.
Accompanying drawing explanation
Fig. 1 is adsorbent equipment structural representation of the present invention;
Fig. 2 is device for absorbing tail gas structural representation of the present invention.
Shown in Fig. 1, Fig. 2: 1, salable clear glass device; 2, rotary switch; 3, colloid flexible pipe; 4, methylene oxide detecting instrument; 5, conduit I; 6, conduit II; 7, absorption bottle; 8, vacuum pump.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
A kind of device of experimental material Adsorption formaldehyde gas effect, comprise adsorbent equipment and device for absorbing tail gas, described adsorbent equipment comprises salable clear glass device (1), rotary switch (2), colloid flexible pipe (3), methylene oxide detecting instrument (4), described salable clear glass device (1) lower opening place is provided with rotary switch (2), one end of described colloid flexible pipe (3) is connected with rotary switch (2), and the other end of colloid flexible pipe (3) is connected with methylene oxide detecting instrument (4); Described device for absorbing tail gas comprises absorption bottle (7), conduit I (5), conduit II (6), the vacuum pump (8) with double-hole rubber plug; Absorption bottle (7) is stretched into through a rubber consent of absorption bottle in one end of described conduit II (6), the other end of conduit II (6) stretches out absorption bottle (7), one end of described conduit I (5) is concordant with absorption bottle (7) bottleneck through another rubber consent of absorption bottle (7), and the other end of conduit I (5) is connected with vacuum pump (8).
Described absorption bottle is equipped with tail gas absorption liquid in (7), and described tail gas absorption liquid is that liquor potassic permanganate drips dilute sulfuric acid, and pH value is 2-3.
The part that in described device for absorbing tail gas, conduit II (6) stretches into the tail gas absorption liquid of absorption bottle (7) is provided with some apertures.
During concrete enforcement, a kind of method of inspection of experimental material Adsorption formaldehyde gas effect, comprises the steps:
1. 300ml formalin being poured into can be with in the 500ml iodine flask of rubber stopper seal, places and after 1 day, can be used as formaldehyde gas collection source;
2. first the sorbing material that cuts into fritter is put into salable clear glass device (1), then extracted formaldehyde gas and inject from the bottleneck of salable clear glass device (1) top, do encapsulation process;
3. will open methylene oxide detecting instrument (4), again rotary switch (2) is opened, rock gently salable clear glass device (1), formaldehyde gas is evenly scattered, observe methylene oxide detecting instrument (4), after stable reading, record first formaldehyde stabilizing gas concentration readings, then rotary switch (2) is closed;
4. after 10min, just rotary switch (2) is opened, read second numerical value, every 10min, read a numerical value, when detecting reading at every turn, outwards winding rotary switch (2), after reading, close, m-concentration absorption figure when numerical value can be made during more than 5, draws the absorption trend of formaldehyde and the adsorption rate of different period formaldehyde;
5. after end to be detected, device for absorbing tail gas is communicated with adsorbent equipment, is about to methylene oxide detecting instrument (4) and takes off, the one end of conduit II (6) being stretched out to absorption bottle (7) is connected with colloid flexible pipe (3);
6. the formaldehyde tail gas in salable clear glass device (1) absorbs by the tail gas absorption liquid in absorption bottle (7);
7. by vacuum pump (8) be evacuated to-0.07KPa--0.01KPa, vacuum pump (8) transmits negative pressure by remaining formaldehyde tail gas extraction in salable clear glass device (1) by the aperture of conduit II (6), the aperture of conduit II (6) can increase the contact area of formaldehyde gas and tail gas absorption liquid, preventing from vacuumizing liquor potassic permanganate while processing formaldehyde tail gas is inhaled in vacuum pump (8), vacuum pump (8) continuous drawing three times, formaldehyde tail gas is extracted totally, in order to detecting next time.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. the device of an experimental material Adsorption formaldehyde gas effect, comprise adsorbent equipment and device for absorbing tail gas, it is characterized in that: described adsorbent equipment comprises salable clear glass device, rotary switch, colloid flexible pipe, methylene oxide detecting instrument, described salable clear glass device lower opening place is provided with rotary switch, one end of described colloid flexible pipe is connected with rotary switch, and the other end of colloid flexible pipe is connected with methylene oxide detecting instrument; Described device for absorbing tail gas comprises absorption bottle, conduit I, conduit II, the vacuum pump with double-hole rubber plug; Absorption bottle is stretched into through a rubber consent of absorption bottle in one end of described conduit II, and one end of described conduit I is concordant with bottleneck through another rubber consent of absorption bottle, and the other end of conduit I is connected with vacuum pump.
2. the device of a kind of experimental material Adsorption formaldehyde gas effect according to claim 1, is characterized in that: tail gas absorption liquid is housed in described absorption bottle, and described tail gas absorption liquid is that liquor potassic permanganate drips dilute sulfuric acid, and pH value is 2-3.
3. the device of a kind of experimental material Adsorption formaldehyde gas effect according to claim 1, is characterized in that: the part that in described device for absorbing tail gas, conduit II stretches into the tail gas absorption liquid of absorption bottle is provided with some apertures.
4. a method of inspection for experimental material Adsorption formaldehyde gas effect, is characterized in that: specifically comprise the steps:
(1) in a certain amount of formalin leaves salable reagent bottle in, place and as formaldehyde gas, gather source in 1 day, during check, take top tank air in reagent bottle;
(2) first the sorbing material that cuts into fritter is put into salable clear glass device, then extracted formaldehyde gas and inject from the bottleneck of salable clear glass device top, do encapsulation process;
(3) will open methylene oxide detecting instrument, then rotary switch will be opened, rock gently salable clear glass device, formaldehyde gas is evenly scattered, observe methylene oxide detecting instrument, after stable reading, record first formaldehyde stabilizing gas concentration readings, then rotary switch is closed;
(4) after 10min, just rotary switch is opened, read second numerical value, every 10min, read a numerical value, when detecting reading at every turn, outwards winding rotary switch, after reading, close, m-concentration absorption figure when numerical value can be made during more than 5, draws the absorption trend of formaldehyde and the adsorption rate of different period formaldehyde;
(5) after end to be detected, device for absorbing tail gas is communicated with adsorbent equipment, is about to methylene oxide detecting instrument and takes off, the one end of conduit II being stretched out to absorption bottle is connected with colloid flexible pipe;
(6) the formaldehyde tail gas in salable clear glass device absorbs by the tail gas absorption liquid in absorption bottle;
(7) vacuum pump is evacuated to-0.07KPa--0.01KPa, vacuum pump is extracted by the aperture transmission negative pressure of conduit II the remaining formaldehyde tail gas not absorbing cleanly in salable clear glass device out, the aperture of conduit II can increase the contact area of formaldehyde gas and tail gas absorption liquid, preventing from vacuumizing liquor potassic permanganate while processing formaldehyde tail gas is inhaled in vacuum pump, vacuum pump continuous drawing three times, formaldehyde tail gas is extracted totally, in order to detecting next time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410205630.2A CN104020253A (en) | 2014-05-16 | 2014-05-16 | Device and method for examining formaldehyde gas adsorbing-removing effects of material |
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| CN201410205630.2A CN104020253A (en) | 2014-05-16 | 2014-05-16 | Device and method for examining formaldehyde gas adsorbing-removing effects of material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360020A (en) * | 2014-11-06 | 2015-02-18 | 山西新华化工有限责任公司 | Measuring method for detecting guard time of adsorbing formaldehyde steam by active carbon |
| CN110231438A (en) * | 2019-06-11 | 2019-09-13 | 长沙标朗住工科技有限公司 | A kind of material goes the detection device and method of smoke performance |
| CN110947432A (en) * | 2019-11-12 | 2020-04-03 | 南华大学 | A artifical simulation climate box for monitoring uranium tailings sand |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104360020A (en) * | 2014-11-06 | 2015-02-18 | 山西新华化工有限责任公司 | Measuring method for detecting guard time of adsorbing formaldehyde steam by active carbon |
| CN110231438A (en) * | 2019-06-11 | 2019-09-13 | 长沙标朗住工科技有限公司 | A kind of material goes the detection device and method of smoke performance |
| CN110947432A (en) * | 2019-11-12 | 2020-04-03 | 南华大学 | A artifical simulation climate box for monitoring uranium tailings sand |
| CN110947432B (en) * | 2019-11-12 | 2024-09-17 | 南华大学 | Artificial simulation climate box for monitoring uranium tail sand |
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Effective date of registration: 20170606 Address after: 410600 Sanhuan East Road, Ningxiang Economic Development Zone, Ningxiang County, Hunan City, Hunan province (Limited by Share Ltd, Changsha) Applicant after: Changsha landmark Technology Co., Ltd. Address before: 410601 Changsha, Hunan, Ningxiang Economic Development Zone, East Third Ring Road, Ningxiang Applicant before: Hunan Wenxiang Carbon Based Environmental Protection Material Co., Ltd. |
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Application publication date: 20140903 |