CN110455592A - Based on self-priming gas production bag and its application - Google Patents
Based on self-priming gas production bag and its application Download PDFInfo
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- CN110455592A CN110455592A CN201810426772.XA CN201810426772A CN110455592A CN 110455592 A CN110455592 A CN 110455592A CN 201810426772 A CN201810426772 A CN 201810426772A CN 110455592 A CN110455592 A CN 110455592A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
- G01N2001/248—Evacuated containers
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- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of based on self-priming gas production bag and its application, mainly solves the problems, such as that the sampler bag of the prior art is difficult to the lower alkane derivative of automatic collection workplace air mid-boiling point.For the present invention by using a kind of based on self-priming gas production bag, including sampler bag internal layer, sampler bag outer layer and valve, sampler bag internal layer material is aluminium foil, and sampler bag outer layer material is latex, and valve material is polytetrafluoroethylene (PTFE)；The ratio between thickness of the sampler bag internal layer and sampler bag outer layer preferably solves the above problem for the technical solution of 0.1~0.2:1, can be used in gas sampling.
Description
Technical field
The present invention relates to a kind of based on self-priming gas production bag and its application.
Background technique
It is to comment that the alkane derivative of (- 161.7~40 DEG C) lower to workplace air mid-boiling point, which carries out sampling analysis,
Estimate the important channel that operating personnel contacts adverse factor level, the method for sampling directly influences the accuracy of testing result,
Also the convenience of sample collector's operation is influenced.
The lower alkane derivative of workplace air mid-boiling point can not be adopted by conventional activated carbon tube at present
Sample relies primarily on common gas production bag cooperation air sampler and is sampled [Rong Weifeng, Wuchuan, Ling Weijie workplace air
Middle methane, propane, the whole nation occupation in 2011 of butane or iso-butane direct injected gas Chromatographic Determination [A] Chinese Preventive Medicine Association
Sick academic exchange conference collection of thesis [C]；2011], it include: that (1) air sampler carries not side with the drawbacks of top sampling method
Just and complicated operation, one can not acquire large batch of sample in the short time；(2) sample acquisition time is not easy to control, In
It is easy to miss the optimum sampling period when acquiring short time enriched sample；(3) the gas production bag after sampling is positive pressure, is transported for a long time
Or it saves and is easy gas leakage.
There is presently no the gas production that one kind is capable of the lower alkane derivative of automatic collection workplace air mid-boiling point
Bag and method.
Summary of the invention
The first technical problem to be solved by the present invention is that the sampler bag of the prior art is difficult to automatic collection workplace sky
The problem of gas mid-boiling point lower alkane derivative, provide a kind of new based on self-priming gas production bag, having can be automatic
The advantages of collecting work place air mid-boiling point lower alkane derivative.The second technical problem to be solved by the present invention is
There is provided it is DEG C a kind of with solution the technical issues of one of the corresponding application based on self-priming gas production bag.
One of in order to solve the above problem, The technical solution adopted by the invention is as follows: a kind of based on self-priming gas production bag, packet
Sampler bag internal layer, sampler bag outer layer and valve are included, sampler bag internal layer material is aluminium foil, and sampler bag outer layer material is latex, valve
Material is polytetrafluoroethylene (PTFE)；The ratio between thickness of the sampler bag internal layer and sampler bag outer layer is 0.1~0.2:1.
In above-mentioned technical proposal, it is preferable that sampler bag internal layer includes at least one layer of aluminium foil.
In above-mentioned technical proposal, it is preferable that sampler bag outer layer material is latex, has plasticity, deformable and extruding.
In above-mentioned technical proposal, it is preferable that valve material is polytetrafluoroethylene (PTFE), has self sealing structure, according to latex material
The plasticity and self-restorability of matter, if not squeezing it, can achieve certain time after being full of sample gas automatically
Sealing effect.
In above-mentioned technical proposal, it is preferable that valve is connected with vacuum pump, keeps vacuum by valve seal after vacuumizing
Degree.
In above-mentioned technical proposal, it is preferable that sampler bag shape is round or rectangular.
In above-mentioned technical proposal, it is preferable that valve is regulating valve, and adjustable sample enters the flow of sampler bag.
In above-mentioned technical proposal, it is preferable that the ratio between area and sampler bag superficies product that valve occupies is 0.02:1；It adopts
Under the valve-closed state of sample bag, maximum allowble pressure 0.2MPa.
In above-mentioned technical proposal, it is highly preferred that sampler bag internal layer includes at least 3 layers of aluminium foil.
In order to solve the above problem two, The technical solution adopted by the invention is as follows: a kind of based on self-priming gas production bag
Using in the lower alkane derivative sampling of boiling point.
The present invention develops a kind of self-priming sampler bag and method, can most preferably adopted by controlling sampler bag valve flow
The sample period lower alkane derivative of automatic collection workplace air mid-boiling point, self-priming gas production bag is easy to operate, sampling
Personnel can be to acquire large batch of sample in the short time；Sample collector can most preferably adopted by controlling self-priming gas production bag valve
The sample period lower alkane derivative of automatic collection workplace air mid-boiling point；Self-priming gas production bag acquires gas by negative pressure
After body sample, pressure is the same inside and outside gas production bag, is not easy gas leakage after closing by valve, can transport and save for a long time, obtains
Preferable technical effect.
Detailed description of the invention
Fig. 1 is self-priming gas production bag detailed construction schematic diagram.
In Fig. 1,1, gas production bag outer layer；2, gas production bag internal layer；3, valve.
The present invention will be further described below by way of examples, but is not limited only to the present embodiment.
Specific embodiment
[embodiment 1]
It is a kind of based on self-priming gas production bag, as shown in Figure 1, include sampler bag internal layer, sampler bag outer layer and valve, sampling
Bag internal layer material is aluminium foil, and sampler bag outer layer material is latex, and valve material is polytetrafluoroethylene (PTFE)；The sampler bag internal layer with adopt
The ratio between thickness of sample bag outer layer is 0.1:1.
Sampler bag internal layer includes 2 layers of aluminium foil.Sampler bag outer layer material is latex, has plasticity, deformable and extruding.Valve
Door material is polytetrafluoroethylene (PTFE), and there is self sealing structure to be full of according to the plasticity and self-restorability of latex material when automatically
After sample gas, if not squeezing it, the sealing effect of certain time can achieve.Valve is connected with vacuum pump, takes out true
Vacuum degree is kept by valve seal after sky.Sampler bag shape is circle.Valve is regulating valve, and adjustable sample enters sampling
The flow of bag.The ratio between area and sampler bag superficies product that valve occupies is 0.02:1.Under the valve-closed state of sampler bag,
Maximum allowble pressure is 0.2MPa.
The principle of the invention is as follows: gas production bag vacuumized by aspiration pump after at negative pressure state, gas production bag itself has plastic
Property, by valve automatically into gas production bag, sample collector can be controlled by valve and be adopted air sample after gas production bag valve opening
Sample flow controls the sampling time.By manual squeezing, gas can be discharged in gas production bag.
[embodiment 2]
It is a kind of based on self-priming gas production bag, as shown in Figure 1, include sampler bag internal layer, sampler bag outer layer and valve, sampling
Bag internal layer material is aluminium foil, and sampler bag outer layer material is latex, and valve material is polytetrafluoroethylene (PTFE)；The sampler bag internal layer with adopt
The ratio between thickness of sample bag outer layer is 0.15:1.
Sampler bag internal layer includes 2 layers of aluminium foil.Sampler bag outer layer material is latex, has plasticity, deformable and extruding.Valve
Door material is polytetrafluoroethylene (PTFE), has self sealing structure, and valve is connected with vacuum pump, keeps true by valve seal after vacuumizing
Reciprocal of duty cycle.Sampler bag shape is rectangular.Valve is regulating valve, and adjustable sample enters the flow of sampler bag.The face that valve occupies
The ratio between long-pending and sampler bag superficies product is 0.02:1.Under the valve-closed state of sampler bag, maximum allowble pressure 0.2MPa.
The principle of the invention is as follows: gas production bag vacuumized by aspiration pump after at negative pressure state, gas production bag itself has plastic
Property, by valve automatically into gas production bag, sample collector can be controlled by valve and be adopted air sample after gas production bag valve opening
Sample flow controls the sampling time.By manual squeezing, gas can be discharged in gas production bag.
[embodiment 3]
It is a kind of based on self-priming gas production bag, as shown in Figure 1, include sampler bag internal layer, sampler bag outer layer and valve, sampling
Bag internal layer material is aluminium foil, and sampler bag outer layer material is latex, and valve material is polytetrafluoroethylene (PTFE)；The sampler bag internal layer with adopt
The ratio between thickness of sample bag outer layer is 0.2:1.
Sampler bag internal layer includes 2 layers of aluminium foil.Sampler bag outer layer material is latex, has plasticity, deformable and extruding.Valve
Door material is polytetrafluoroethylene (PTFE), has self sealing structure, and valve is connected with vacuum pump, keeps true by valve seal after vacuumizing
Reciprocal of duty cycle.Sampler bag shape is rectangular.Valve is regulating valve, and adjustable sample enters the flow of sampler bag.The face that valve occupies
The ratio between long-pending and sampler bag superficies product is 0.02:1.Under the valve-closed state of sampler bag, maximum allowble pressure 0.2MPa.
The principle of the invention is as follows: gas production bag vacuumized by aspiration pump after at negative pressure state, gas production bag itself has plastic
Property, by valve automatically into gas production bag, sample collector can be controlled by valve and be adopted air sample after gas production bag valve opening
Sample flow controls the sampling time.By manual squeezing, gas can be discharged in gas production bag.
[embodiment 4]
It is a kind of based on self-priming gas production bag, as shown in Figure 1, include sampler bag internal layer, sampler bag outer layer and valve, sampling
Bag internal layer material is aluminium foil, and sampler bag outer layer material is latex, and valve material is polytetrafluoroethylene (PTFE)；The sampler bag internal layer with adopt
The ratio between thickness of sample bag outer layer is 0.1:1.
Sampler bag internal layer includes 2 layers of aluminium foil.Sampler bag outer layer material is latex, has plasticity, deformable and extruding.Valve
Door material is polytetrafluoroethylene (PTFE), has self sealing structure, and valve is connected with vacuum pump, keeps true by valve seal after vacuumizing
Reciprocal of duty cycle.Sampler bag shape is rectangular.Valve is regulating valve, and adjustable sample enters the flow of sampler bag.The face that valve occupies
The ratio between long-pending and sampler bag superficies product is 0.01:1.Under the valve-closed state of sampler bag, maximum allowble pressure 0.2MPa.
The principle of the invention is as follows: gas production bag vacuumized by aspiration pump after at negative pressure state, gas production bag itself has plastic
Property, by valve automatically into gas production bag, sample collector can be controlled by valve and be adopted air sample after gas production bag valve opening
Sample flow controls the sampling time.By manual squeezing, gas can be discharged in gas production bag.
[embodiment 5]
It is a kind of based on self-priming gas production bag, as shown in Figure 1, include sampler bag internal layer, sampler bag outer layer and valve, sampling
Bag internal layer material is aluminium foil, and sampler bag outer layer material is latex, and valve material is polytetrafluoroethylene (PTFE)；The sampler bag internal layer with adopt
The ratio between thickness of sample bag outer layer is 0.2:1.
Sampler bag internal layer includes 2 layers of aluminium foil.Sampler bag outer layer material is latex, has plasticity, deformable and extruding.Valve
Door material is polytetrafluoroethylene (PTFE), has self sealing structure, and valve is connected with vacuum pump, keeps true by valve seal after vacuumizing
Reciprocal of duty cycle.Sampler bag shape is rectangular.Valve is regulating valve, and adjustable sample enters the flow of sampler bag.The face that valve occupies
The ratio between long-pending and sampler bag superficies product is 0.01:1.Under the valve-closed state of sampler bag, maximum allowble pressure 0.2MPa.
The principle of the invention is as follows: gas production bag vacuumized by aspiration pump after at negative pressure state, gas production bag itself has plastic
Property, by valve automatically into gas production bag, sample collector can be controlled by valve and be adopted air sample after gas production bag valve opening
Sample flow controls the sampling time.By manual squeezing, gas can be discharged in gas production bag.
[comparative example]
Currently, common gas production bag is mostly single aluminium foil material or polytetrafluoroethylene (PTFE) material in the market, typically
It first passes through manual squeezing to empty air in bag, is then full of gas production bag with aspiration pump, take back experiment after then tightening valve
Room analysis.Such operation needs personnel to rest on operation field in the concentration of poison highest period, and needs simultaneously in operation
Aspiration pump is operated, operation is relative complex, can not carry out the sampling of multiple samples simultaneously, is also unfavorable for catching sampling in time when sampling
Concentration highest point.
The present invention solves the above problem, and multiple gas production bags can be pumped into before sampling starts with aspiration pump by operator
Sampler bag need to only be stayed in operation field by vacuum, when sampling, avoided the poisonous substance that operator contacts high concentration, passed through valve control
Sampling flow processed controls the sampling time, can operate multiple sampler bags simultaneously.
Claims (10)
1. a kind of based on self-priming gas production bag, including sampler bag internal layer, sampler bag outer layer and valve, sampler bag internal layer material is
Aluminium foil, sampler bag outer layer material are latex, and valve material is polytetrafluoroethylene (PTFE)；The thickness of the sampler bag internal layer and sampler bag outer layer
The ratio between degree is 0.1~0.2:1.
2. according to claim 1 based on self-priming gas production bag, it is characterised in that sampler bag internal layer includes at least one layer of aluminium
Foil.
3. according to claim 1 based on self-priming gas production bag, it is characterised in that sampler bag outer layer material is latex, is had
Plasticity, deformable and extruding.
4. according to claim 1 based on self-priming gas production bag, it is characterised in that valve material is polytetrafluoroethylene (PTFE), is had
Self sealing structure, according to the plasticity and self-restorability of latex material, after being full of sample gas automatically, if not carried out to it
It squeezes, the sealing effect of certain time can be reached.
5. according to claim 1 based on self-priming gas production bag, it is characterised in that valve is connected with vacuum pump, after vacuumizing
Vacuum degree is kept by valve seal.
6. according to claim 1 based on self-priming gas production bag, it is characterised in that sampler bag shape is round or rectangular.
7. according to claim 1 based on self-priming gas production bag, it is characterised in that valve is regulating valve, adjustable sample
Into the flow of sampler bag.
8. according to claim 1 based on self-priming gas production bag, it is characterised in that outside the area and sampler bag that valve occupies
The ratio between surface layer is 0.02:1；Under the valve-closed state of sampler bag, maximum allowble pressure 0.2MPa.
9. according to claim 2 based on self-priming gas production bag, it is characterised in that sampler bag internal layer includes at least 3 layers of aluminium
Foil.
10. the application based on self-priming gas production bag described in a kind of claim 1~9 is used for the lower alkanes chemical combination of boiling point
In object sampling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426772.XA CN110455592A (en) | 2018-05-07 | 2018-05-07 | Based on self-priming gas production bag and its application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426772.XA CN110455592A (en) | 2018-05-07 | 2018-05-07 | Based on self-priming gas production bag and its application |
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| CN110455592A true CN110455592A (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810426772.XA Pending CN110455592A (en) | 2018-05-07 | 2018-05-07 | Based on self-priming gas production bag and its application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029711A (en) * | 2021-03-26 | 2021-06-25 | 四川云辰园林科技有限公司 | Automatic gas sampling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008025070A1 (en) * | 2008-05-26 | 2009-12-03 | Doukas Ag | Container i.e. flat bag, for accommodating and dispensing latex for pneumatic tire of e.g. off-road vehicle, has plastic or elastic deformable walls, where bag is formed from foil strips, which are laid on top of each other and heat-sealed |
| CN203307275U (en) * | 2013-04-28 | 2013-11-27 | 须建明 | Polar membrane with adsorbability, and one-way check valve and inflated bag |
| CN106323700A (en) * | 2016-08-03 | 2017-01-11 | 上海化工研究院 | Spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof |
| CN205919997U (en) * | 2016-08-16 | 2017-02-01 | 杭州市环境监测中心站 | Simple and easy autonomic negative pressure sampling bag |
| CN206258289U (en) * | 2016-12-02 | 2017-06-16 | 杭州天净检测技术有限公司 | A kind of gas sampling bag |
-
2018
- 2018-05-07 CN CN201810426772.XA patent/CN110455592A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008025070A1 (en) * | 2008-05-26 | 2009-12-03 | Doukas Ag | Container i.e. flat bag, for accommodating and dispensing latex for pneumatic tire of e.g. off-road vehicle, has plastic or elastic deformable walls, where bag is formed from foil strips, which are laid on top of each other and heat-sealed |
| CN203307275U (en) * | 2013-04-28 | 2013-11-27 | 须建明 | Polar membrane with adsorbability, and one-way check valve and inflated bag |
| CN106323700A (en) * | 2016-08-03 | 2017-01-11 | 上海化工研究院 | Spring inner supporting self suction gas sampling device under ordinary pressure/negative pressure and application thereof |
| CN205919997U (en) * | 2016-08-16 | 2017-02-01 | 杭州市环境监测中心站 | Simple and easy autonomic negative pressure sampling bag |
| CN206258289U (en) * | 2016-12-02 | 2017-06-16 | 杭州天净检测技术有限公司 | A kind of gas sampling bag |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029711A (en) * | 2021-03-26 | 2021-06-25 | 四川云辰园林科技有限公司 | Automatic gas sampling device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191115 |
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| RJ01 | Rejection of invention patent application after publication |