CN202886148U - Sampling collector of organic volatile matters in product/sample - Google Patents
Sampling collector of organic volatile matters in product/sample Download PDFInfo
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- CN202886148U CN202886148U CN2012203914294U CN201220391429U CN202886148U CN 202886148 U CN202886148 U CN 202886148U CN 2012203914294 U CN2012203914294 U CN 2012203914294U CN 201220391429 U CN201220391429 U CN 201220391429U CN 202886148 U CN202886148 U CN 202886148U
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Abstract
The utility model belongs to a gas sampling instrument in the field of detection, and relates to a sampling collector of organic volatile matters in a product/sample. The sampling collector comprises a sampling bag of which the inside is used for placing a product/sample, a control device and a constant-flow sampler, wherein the sampling bag is connected with a vacuum pump, a gas cylinder and the constant-flow sampler respectively through connecting pipes; the vacuum pump, the gas cylinder and the constant-flow sampler are connected with the control device; the sampling bag is provided with an inlet which is used for receiving the product/sample, and a thermometer and a pressure sensor are arranged in the sampling bag; and the pressure sensor is connected with the control device. The sampling collector has beneficial effects of low cost and easiness in operation, can be used for performing volatile pollutant sampling on the whole product/sample under the condition of not destroying the product/sample with low cost and easy realization, and can be used as a novel detection product sampling method or collecting device for replacing the existing expensive environment simulating chamber method or other methods or devices which are difficult to use.
Description
Technical field
The invention belongs to detection field gas sampling method and instrument, relate to organic volatile sample collection device in a kind of product/sample, mainly for the collection of volatile contaminant.
Background technology
The volatility of product/sample is polluted and day by day is taken seriously.The product of newly buying is no matter be that furniture, wood-based plate or carpet, its volatility of wallpaper are polluted and be subject to people's extensive concern.For toxicity and the content that detects its volatile matter, country drops into larger physical resources and financial resources and carries out scientific research, but along with product emerges in an endless stream, the characteristic of new product is different, and the drawback of present detection method appears gradually.
At present in the product volatile contaminant detection method, mostly adopt the method that detects afterwards that gathers first, what adopt such as the collection of furniture burst size of methanal is " 9-11L exsiccator " method, with each position average sample of whole furniture, saw is made 10 of the test specimens of 150mm*50mm size, put into the 9-11L exsiccator behind the inside back cover limit, collected formaldehyde 24 hours with 300mL distilled water, the solution concentration behind the formaldehyde is collected in detection.Environmental experiment cabin method is that furniture integral body is put into environmental test chamber, the laggard promoting the circulation of qi sampler body of balance under the environment of uniform temperature, humidity, gas velocity, and the concentration of formaldehyde or VOC is judged the release conditions of furniture in the analytical gas.Except family product, the volatile contaminant of the products such as automotive upholstery, wood-based plate also is to adopt the environmental test chamber method to detect at present.But the environmental test chamber method since need not destroy product/sample analog equipment/sample normal operating condition etc. advantage, so present many products, such as: new wooden furniture standard, part soft furniture all adopt the environmental test chamber method such as carpet etc., yet environmental experiment cabin method is owing to have relatively high expectations to the cabin body, need expensive, the shortcomings such as energy consumption is high, and testing cost is high, and sense cycle is long still can't overcome.
Summary of the invention
The present invention provides organic volatile sample collection device in low, the easy-operating product/sample of a kind of cost in order to remedy the deficiencies in the prior art.
The present invention is achieved through the following technical solutions:
Organic volatile sample collection device in product/sample of the present invention, it is characterized in that: comprise the inner sampler bag that is used for placing product/sample, also comprise control device and constant current sampling thief, sampler bag connects respectively vacuum pump, gas cylinder and constant current sampling thief by connecting pipe, vacuum pump, gas cylinder and constant current sampling thief are connected control device, sampler bag is provided be used to the entrance of putting into product/sample, and baroceptor is arranged in the sampler bag, and baroceptor connects control device.
Described sampler bag is made by foil laminated film or PP, PE material, and the porch that is used for putting into product/sample is adopted slide fastener, adopted a certain mode of heat-sealing or folding clamping to seal.
Described sampler bag is provided with and takes out, air intake opening and thief hatch, takes out, air intake opening connects vacuum pump and gas cylinder by connecting pipe, and vacuum pump and gas cylinder are respectively equipped with valve, and thief hatch connects the constant current sampling thief.
Described sampler bag be shaped as rectangular parallelepiped, square, quadrilateral or polygon, size is corresponding with product/sample.
Describedly take out, air intake opening, thief hatch, be used for putting into entrance and the tracheae of product/sample, adopt not discharge or the low material that discharges is made.
The in-built pure air of described gas cylinder or nitrogen.
The organic volatile method of sampling in product/sample: under the certain environment temperature, product/sample that needs detect is put into sampler bag, vacuumize, be filled with again pure air or nitrogen, after reaching the setting gaseous tension, automatically stop inflation, balance gathers air sample after a period of time, thereby judges the release conditions of pollutant.
The invention has the beneficial effects as follows, cost is low, easy to operate, by the method and gatherer, can in the situation of not destroying product/sample, carry out the volatile contaminant sampling to whole product/sample, it is low to have cost, easily realize, can be used as a kind of method of sampling or harvester of novel testing product, substitute environmental experiment cabin method or other not wield method or the device of existing costliness.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure, 1 product/sample, 2 sampler bags, 3 connecting pipes, 4 control device, 5 constant current sampling thiefs, 6 vacuum pumps, 7 gas cylinders.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
Organic volatile sample collection device in product/sample of the present invention, detailed construction is as follows:
1, this sampling thief is comprised of following part as shown in Figure 1:
Organic volatile sample collection device in product/sample of the present invention, comprise the inner sampler bag 2 that is used for placing product/sample 1, also comprise control device and constant current sampling thief 5, sampler bag connects respectively vacuum pump 6, gas cylinder 7 and constant current sampling thief by connecting pipe 3, vacuum pump, gas cylinder and constant current sampling thief are connected control device 4, sampler bag is provided be used to the entrance of putting into product/sample, and baroceptor is arranged in the sampler bag, and baroceptor connects control device.
The foil laminated film sampler bag, different according to product/sample, it is shaped as rectangular parallelepiped, square, quadrilateral or polygon, size is corresponding with product/sample).The sealing means of the design of zip mode buckle, hot pressing or folding clamping is adopted in the sealing on limit), product/sample integral body can be put into, then sampler bag is sealed, sampler bag leaves and takes out, air intake opening, thief hatch, this mouth can be designed to one or more, can be thus mouthful quantitatively takes out, the operations such as air inlet, sampling.Take out, air intake opening, thief hatch is used for putting into entrance and the tracheae of product/sample, adopts teflon, stainless steel or the high-quality polyurethanes does not discharge or the low material that discharges is made gas cylinder: in-built pure air or nitrogen etc.
The constant current sampling thief: stability of flow, when with packed column adjustments of gas flow velocity and when adopting one-level soap film flowmeter calibrated fluxes, error was less than 5% before and after flow should satisfy.
Control device: can realize the control to sampler bag air pressure, at first can to the sampler bag operation of bleeding, can realize vacuumizing function; Next has aerification function, can realize the control function to sampler bag air pressure, can inflate when sampler bag air pressure is too small, when sampler bag air pressure is excessive, can carry out exhaust; Function when being provided with thermometric, control.
Coupling arrangement: i.e. tracheae, be used for connecting gas cylinder with airbag or airbag with the constant current sampling thief.Can select metal tube, polyfluortetraethylene pipe or other material pipes without release according to actual conditions.
2, collecting flowchart
(1) the testing environment temperature is controlled under the interior a certain temperature of 15-75 ℃ of scope, can carry out in the room of the thermostatic constant wet chamber with enough accuracy and scope or air-conditioning.
(2) product/sample, sampler bag, gas cylinder were placed under above-mentioned environment 1 hour-28 days, the concrete time arranges as required.
(3) product/sample is put into sampler bag, and sealing, follow gas cylinder to receive in vacuum pump and be drawn into gas port.Open vacuum pump, when the vacuum tightness in the sampler bag reaches required value, close vacuum pump, then be filled with pure air or nitrogen by gas cylinder, after reaching the setting gaseous tension, automatically stop inflation, monitor gas temperature in the sampler bag this moment, in the whole operation when pressure is excessive blowdown valve automatically begin pressure release, until sampler bag temperature and ambient temperature equilibrium.Product/sample is the bright and warning of 1 hour-28 days (the concrete time arranges as required) rear indicator lights of balance in sampler bag.The constant current sampling thief is received on the thief hatch.Open vacuum pump unlatching constant current sampling thief and sample, sampling gained gas is adsorbed the volatile organic matter that gathers in the gas with adsorption tube.
(4) calculating of pollutant, load-carry duty should be counted (ratio of the ratio of product/surface area of sample and the volume of complex pocket or product/sample volume and complex pocket volume, product/sample can adopt sciagraphy to carry out the surface area of counting yield/sample with reference to relevant criterion when too complicated).
(5) should at first detect the background concentration of blank sampler bag before detecting.Acquisition method is identical with the acquisition method of built-in product/sample.
Claims (6)
1. organic volatile sample collection device in the product/sample, it is characterized in that: comprise the inner sampler bag that is used for placing product/sample, also comprise control device and constant current sampling thief, sampler bag connects respectively vacuum pump, gas cylinder and constant current sampling thief by connecting pipe, vacuum pump, gas cylinder and constant current sampling thief are connected control device, sampler bag is provided be used to the entrance of putting into product/sample, and baroceptor is arranged in the sampler bag, and baroceptor connects control device.
2. organic volatile sample collection device in product/sample according to claim 1, it is characterized in that: sampler bag is made by foil laminated film or PP, PE, and the porch that is used for putting into product/sample is provided with slide fastener.
3. organic volatile sample collection device in product/sample according to claim 1 and 2, it is characterized in that: sampler bag is provided with and takes out, air intake opening and thief hatch, take out, air intake opening connects vacuum pump and gas cylinder by connecting pipe, vacuum pump and gas cylinder are respectively equipped with valve, and thief hatch connects the constant current sampling thief.
4. organic volatile sample collection device in product/sample according to claim 3 is characterized in that: sampler bag be shaped as rectangular parallelepiped, square or quadrilateral.
5. organic volatile sample collection device in product/sample according to claim 3 is characterized in that: take out, air intake opening, thief hatch, be used for putting into entrance and the tracheae of product/sample, adopt teflon, stainless steel or high-quality polyurethane material to make.
6. organic volatile sample collection device in product/sample according to claim 1 is characterized in that: the in-built pure air of gas cylinder or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203914294U CN202886148U (en) | 2012-08-09 | 2012-08-09 | Sampling collector of organic volatile matters in product/sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203914294U CN202886148U (en) | 2012-08-09 | 2012-08-09 | Sampling collector of organic volatile matters in product/sample |
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| Publication Number | Publication Date |
|---|---|
| CN202886148U true CN202886148U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203914294U Expired - Fee Related CN202886148U (en) | 2012-08-09 | 2012-08-09 | Sampling collector of organic volatile matters in product/sample |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424292A (en) * | 2013-08-19 | 2013-12-04 | 重庆长安汽车股份有限公司 | Harmful gas sampling method for automotive interior parts |
| CN105062889A (en) * | 2015-07-30 | 2015-11-18 | 哈尔滨医科大学 | Cell volatile matter collecting incubator |
| 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 |
| CN108051285A (en) * | 2017-12-15 | 2018-05-18 | 宁波环测实验器材有限公司 | A kind of sack method VOC pretreating devices and its application method |
| CN108398300A (en) * | 2018-02-12 | 2018-08-14 | 北京空间技术研制试验中心 | Acquire the device and method of manned spacecraft pernicious gas |
| CN109540609A (en) * | 2018-11-23 | 2019-03-29 | 河南农业大学 | A kind of method and application of quick collection tobacco volatile odoring substance |
-
2012
- 2012-08-09 CN CN2012203914294U patent/CN202886148U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424292A (en) * | 2013-08-19 | 2013-12-04 | 重庆长安汽车股份有限公司 | Harmful gas sampling method for automotive interior parts |
| CN105062889A (en) * | 2015-07-30 | 2015-11-18 | 哈尔滨医科大学 | Cell volatile matter collecting incubator |
| CN105062889B (en) * | 2015-07-30 | 2017-11-17 | 哈尔滨医科大学 | A kind of cell volatile matter collects incubator |
| 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 |
| CN108051285A (en) * | 2017-12-15 | 2018-05-18 | 宁波环测实验器材有限公司 | A kind of sack method VOC pretreating devices and its application method |
| CN108398300A (en) * | 2018-02-12 | 2018-08-14 | 北京空间技术研制试验中心 | Acquire the device and method of manned spacecraft pernicious gas |
| CN109540609A (en) * | 2018-11-23 | 2019-03-29 | 河南农业大学 | A kind of method and application of quick collection tobacco volatile odoring substance |
| CN109540609B (en) * | 2018-11-23 | 2022-11-11 | 河南农业大学 | Method for rapidly collecting tobacco volatile odor substances and application |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20130809 |