CN106198130A - VOC volatilization sampling apparatus and the method for sampling in a kind of synthetic leather - Google Patents
VOC volatilization sampling apparatus and the method for sampling in a kind of synthetic leather Download PDFInfo
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- CN106198130A CN106198130A CN201610696411.8A CN201610696411A CN106198130A CN 106198130 A CN106198130 A CN 106198130A CN 201610696411 A CN201610696411 A CN 201610696411A CN 106198130 A CN106198130 A CN 106198130A
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- bag
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- voc
- sampler bag
- tedlar sampler
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Abstract
The invention discloses VOC volatilization sampling apparatus and the method for sampling in a kind of synthetic leather, device includes Tedlar sampler bag, hand-held VOC gas detector, gas bag, connection flexible pipe, valve.Method is filled with nitrogen by gas bag in Tedlar sampler bag, then gas carry out gas detecting in hand-held VOC gas detector sampling Tedlar sampler bag is utilized, present invention achieves detection efficiency high, easy to operate, the feature that equipment failure rate is low, it is established that synthetic leather class VOC detection new model.
Description
Technical field
The present invention relates to VOC detection field, VOC in specifically a kind of synthetic leather
Volatilization sampling apparatus.
Background technology
Along with the raising of people's living standard, the developed countries such as people are more and more higher to the attention rate of own health, European Union
VOC (VOC) residual quantity in synthetic leather product is also paid special attention to.Traditional detection method is to pass through head space
Sampling bottle heated sealed, by each component content in the quantitative VOC of GC-MS, the method disclosure satisfy that the judgement to end product, but
There is testing cost high, the longest, it is impossible to give production process control and guidance at short notice, it is impossible at any time product to be carried out
Process management and control, the problem such as response speed when there is exception is the slowest.
Summary of the invention is for the present situation of existing synthetic leather goods VOC detection method, and the present invention proposes in a kind of synthetic leather
VOC volatilization sampling apparatus, it is therefore an objective to solve in production process producing VOC in goods
(VOC) quickly detection and monitoring, timely adjusting process parameter, process quality control is protected.
In order to achieve the above object, the technical solution adopted in the present invention is:
VOC volatilization sampling apparatus in a kind of synthetic leather, it is characterised in that: including:
Tedlar sampler bag, it can accommodate synthetic leather to be detected, and Tedlar sampler bag connects connection flexible pipe；
Valve, is arranged on connection flexible pipe, controls to connect the break-make of flexible pipe；
Gas bag, is filled with the nitrogen of purity >=99.999% inside it, gas bag connects with Tedlar sampler bag by connecting flexible pipe, by
Gas bag feeds nitrogen as source nitrogen by connecting flexible pipe in Tedlar sampler bag, and by the entrance of Valve controlling nitrogen and stream
Go out；
Hand-held VOC gas detector, gas bag be connected flexible pipe on Tedlar sampler bag and disconnect
Time, hand-held VOC gas detector connects with Tedlar sampler bag by connecting flexible pipe, hand-held waves
Gas in the property sent out organic compound gas detector sampling Tedlar sampler bag.
The VOC volatilization method of sampling in a kind of synthetic leather, it is characterised in that: comprise the following steps:
(1), preparation of samples: synthetic leather to be detected size according to the rules is positioned in Tedlar sampler bag, extrudes Thailand as far as possible
Moral draws pouch interior air, closes valve and clamps connection flexible pipe by clips, making Tedlar sampler bag seal；
(2), processing procedure: with connecting hose connection Tedlar sampler bag and gas bag, take off clips and open valve, making gas bag
Being filled with nitrogen in Tedlar sampler bag, inflation closes valve (flow is 500mL/min) after continuing 2 minutes, removes gas bag, and
Nitrogen in Tedlar sampler bag is shaken up；
(3), test record: by connecting hose connection Tedlar sampler bag and hand-held VOC gas detecting
Instrument, then opens valve, and hand-held VOC gas detector extracts gas sample from Tedlar sampler bag
For gas analysis, when hand-held VOC gas detector stable reading, record the peak-peak of reading.
The VOC volatilization method of sampling in described synthetic leather, it is characterised in that: to Taide in step (1)
When drawing sampler bag to be filled with nitrogen, the nitrogen poured need to meet the volume requirement that 1000mL ± 10mL is certain, needs after valve closing
Treat reaction certain time in Tedlar sampler bag.
The VOC volatilization method of sampling in described synthetic leather, it is characterised in that: hand-held volatility has
Machine chemical compound gas detector operationally needs to observe the gas flow of Tedlar sampler bag, it is ensured that have the detection of q.s in bag
Gas.
Compared with the prior art, beneficial effects of the present invention is embodied in:
1. during apparatus of the present invention achieve synthetic leather, the quick of VOC is volatilized and collects, and synthetic leather itself is not done any process, directly
Seeing and embody the VOC component information on synthetic leather, detection efficiency is high, and easy to operate, equipment failure rate is low, it is established that synthetic leather class
VOC detects new model.
2., by the addition of nitrogen carrier, provide sufficient source of the gas to VOC gas detector, gas during detection is effectively ensured
Stream stability and longer detection stabilization time, compare alternate manner detection and effectively reduce the fault rate of equipment.
3. pass through sealing and circulating, it is ensured that gas flowing is smooth and easy and effectively reduces external disturbance, it is ensured that detect the reliable of data
Property and comparability.
4. inventive process avoids the influence factors such as the steam that occurs in the otherwise processed such as heating causes numerical value different
The erroneous judgement often resulted in.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention structural representation.
Detailed description of the invention
As it is shown in figure 1, VOC volatilization sampling apparatus in a kind of synthetic leather, including:
Tedlar sampler bag 1, it can accommodate synthetic leather to be detected, and Tedlar sampler bag 1 connects connection flexible pipe 4；
Valve 3, is arranged on connection flexible pipe 4, controls to connect the break-make of flexible pipe 4；
Gas bag 2, is filled with the nitrogen of purity >=99.999% inside it, gas bag 2 is by connecting flexible pipe 4 with Tedlar sampler bag 1 even
Logical, gas bag 4 in Tedlar sampler bag 1, feed nitrogen as source nitrogen by connecting flexible pipe, and controlled nitrogen by valve 3
Flow into and out；
Hand-held VOC gas detector 5, disconnects even with being connected flexible pipe 4 on Tedlar sampler bag 1 at gas bag 2
When connecing, hand-held VOC gas detector 5 connects with Tedlar sampler bag 1, by hand-held by connecting flexible pipe 4
Formula VOC gas detector 5 is sampled gas in Tedlar sampler bag 1.
The VOC volatilization method of sampling in a kind of synthetic leather, comprises the following steps:
(1), preparation of samples: synthetic leather to be detected size according to the rules is positioned in Tedlar sampler bag, extrudes Thailand as far as possible
Moral draws pouch interior air, closes valve and clamps connection flexible pipe by clips, making Tedlar sampler bag seal；
(2), processing procedure: with connecting hose connection Tedlar sampler bag and gas bag, take off clips and open valve, making gas bag
Being filled with nitrogen in Tedlar sampler bag, inflation closes valve (flow is 500mL/min) after continuing 2 minutes, removes gas bag, and
Nitrogen in Tedlar sampler bag is shaken up；
(3), test record: by connecting hose connection Tedlar sampler bag and hand-held VOC gas detecting
Instrument, then opens valve, and hand-held VOC gas detector extracts gas sample from Tedlar sampler bag
For gas analysis, when hand-held VOC gas detector stable reading, record the peak-peak of reading.
In step (1) when Tedlar sampler bag is filled with nitrogen, it is certain that the nitrogen poured need to meet 1000mL ± 10mL
Volume requirement, needs to wait for reaction certain time in Tedlar sampler bag after valve closing.
Hand-held VOC gas detector operationally needs to observe the gas flow of Tedlar sampler bag,
The detected gas of q.s is had in ensureing bag.
In the present invention, Tedlar sampler bag capacity is 3L, has outstanding chemical-resistant, corrosion resistance, low absorbability.
Can be used for high accuracy ppm level analytical sampling, preservation various corrosive gaseous, liquid sample, and organic volatile can be gathered
The sampling of VOCs, is furnished with changeover valve (180 degree clockwise is pass, counterclockwise for opening) and clips, is by polyvinyl fluoride (PVF)
Thin film is made, and has excellent chemical resistance, antilysis and resistance tocrocking, and strong alkali-acid resistance, under room temperature, not by Conventional solvents
Impact.
Hand-held VOC (VOC) gas detector: MiniRAE 7300 series, detectable gas
For: saturated hydrocarbons and unsaturated hydrocarbons；Octane, ethylene, thiacyclohexane etc..Including:
Aromatics: benzene, toluene, naphthalene, Nitrobenzol, chlorobenzene etc.
Ketone, aldehyde, ether: acetone, propionic aldehyde, methyl phenyl ethers anisole etc.
Amine: dimethyl amine, butylamine etc.
Halogenated hydrocarbon: trichloro ethylene, bromoform, bromomethane etc.
Sulfur is for hydro carbons: hydrogen sulfide, Carbon bisulfide etc.
Alcohols: ethanol, methanthiol etc.
Lipid: acetate butyl, aspirin formicester etc.
Hydrazine: hydrazine, methyl hydrazine, dimethylhydrazine etc.
Also include some carbon-free inorganic gas:
Ammonia, arsenic hydride, Selenium hydride., bromine and iodine compounds etc.
Gas bag capacity is 40L, inside rushes purity >=99.999% nitrogen.
The inventive method embodiment:
1. preparation of samples: take the sample (long * width ≈ 210mm*150mm) of standard A4 plate sample half size.
2. Tedlar sampler bag prepares: take the Tedlar sampler bag of dried and clean, synthetic leather sample to be measured is put into Taide
Draw in sampler bag, extrude inner air, seal with pressing plate, and connect gas bag.
3. processing procedure: Tedlar sampler bag valve of outwarding winding, pours the nitrogen that volume is about 40% in Tedlar sampler bag
(measure bag body expansion degree and be about 5cm), screws valve, and room temperature (20-25 DEG C) stands 15 minutes.
4. test record: after gas in Tedlar sampler bag is shaken up, by VOC detector) by connecting tube and Tedlar
Sampler bag connects, and VOC detector is set to state to be measured, changeover valve, makes VOC detector collection start, and observed reading is steady
Determine and record peak-peak (can not gather for a long time, it is necessary to stop before gas exhausts in bag gathering).
Claims (4)
1. VOC volatilization sampling apparatus in a synthetic leather, it is characterised in that: including:
Tedlar sampler bag, it can accommodate synthetic leather to be detected, and Tedlar sampler bag connects connection flexible pipe；
Valve, is arranged on connection flexible pipe, controls to connect the break-make of flexible pipe；
Gas bag, is filled with the nitrogen of purity >=99.999% inside it, gas bag connects with Tedlar sampler bag by connecting flexible pipe, by
Gas bag feeds nitrogen as source nitrogen by connecting flexible pipe in Tedlar sampler bag, and by the entrance of Valve controlling nitrogen and stream
Go out；
Hand-held VOC gas detector, gas bag be connected flexible pipe on Tedlar sampler bag and disconnect
Time, hand-held VOC gas detector connects with Tedlar sampler bag by connecting flexible pipe, hand-held waves
Gas in the property sent out organic compound gas detector sampling Tedlar sampler bag.
2. a VOC volatilization method of sampling in synthetic leather based on sampling apparatus described in claim 1, its
It is characterised by: comprise the following steps:
(1), preparation of samples: synthetic leather to be detected size according to the rules is positioned in Tedlar sampler bag, extrudes Thailand as far as possible
Moral draws pouch interior air, closes valve and clamps connection flexible pipe by clips, making Tedlar sampler bag seal；
(2), processing procedure: with connecting hose connection Tedlar sampler bag and gas bag, take off clips and open valve, making gas bag
Being filled with nitrogen in Tedlar sampler bag, inflation closes valve after continuing 2 minutes；
(3), test record: by connecting hose connection Tedlar sampler bag and hand-held VOC gas detecting
Instrument, then opens valve, and hand-held VOC gas detector extracts gas sample from Tedlar sampler bag
For gas analysis, when hand-held VOC gas detector stable reading, record the peak-peak of reading.
The VOC volatilization method of sampling in synthetic leather the most according to claim 2, it is characterised in that: step
(1) in when Tedlar sampler bag is filled with nitrogen, the nitrogen poured need to meet the volume requirement that 1000mL ± 10mL is certain, valve
Reaction certain time in Tedlar sampler bag is needed to wait for after closedown.
The VOC volatilization method of sampling in synthetic leather the most according to claim 2, it is characterised in that: hand-held
Formula VOC gas detector operationally needs to observe the gas flow of Tedlar sampler bag, it is ensured that have foot in bag
The detected gas of enough amounts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696411.8A CN106198130A (en) | 2016-08-19 | 2016-08-19 | VOC volatilization sampling apparatus and the method for sampling in a kind of synthetic leather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696411.8A CN106198130A (en) | 2016-08-19 | 2016-08-19 | VOC volatilization sampling apparatus and the method for sampling in a kind of synthetic leather |
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| CN106198130A true CN106198130A (en) | 2016-12-07 |
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| CN201610696411.8A Pending CN106198130A (en) | 2016-08-19 | 2016-08-19 | VOC volatilization sampling apparatus and the method for sampling in a kind of synthetic leather |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917831A (en) * | 2017-12-27 | 2018-04-17 | 上海神开气体技术有限公司 | A kind of simple apparatus and method for preparing VOC gas |
| CN109839247A (en) * | 2019-03-07 | 2019-06-04 | 环境保护部环境工程评估中心 | Bag detection device, leak detection system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776641A (en) * | 2009-12-28 | 2010-07-14 | 北京市劳动保护科学研究所 | Hazardous gas comprehensive detection device |
| CN102798555A (en) * | 2012-08-09 | 2012-11-28 | 马文平 | Method for sampling organic volatile compound in product/sample and collector |
| CN105675358A (en) * | 2016-01-27 | 2016-06-15 | 上海杰诺质量检测技术有限公司 | VOC (volatile organic compound) sampling system |
-
2016
- 2016-08-19 CN CN201610696411.8A patent/CN106198130A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776641A (en) * | 2009-12-28 | 2010-07-14 | 北京市劳动保护科学研究所 | Hazardous gas comprehensive detection device |
| CN102798555A (en) * | 2012-08-09 | 2012-11-28 | 马文平 | Method for sampling organic volatile compound in product/sample and collector |
| CN105675358A (en) * | 2016-01-27 | 2016-06-15 | 上海杰诺质量检测技术有限公司 | VOC (volatile organic compound) sampling system |
Non-Patent Citations (1)
| Title |
|---|
| 上海会彬仪器有限公司: "我司已经开发出三星TVOC 磷化氢 甲醛 苯 甲苯检测方法", 《我司已经开发出三星TVOC 磷化氢 甲醛 苯 甲苯检测方法》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917831A (en) * | 2017-12-27 | 2018-04-17 | 上海神开气体技术有限公司 | A kind of simple apparatus and method for preparing VOC gas |
| CN109839247A (en) * | 2019-03-07 | 2019-06-04 | 环境保护部环境工程评估中心 | Bag detection device, leak detection system and method |
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Application publication date: 20161207 |
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