CN2143774Y - Gas sampling bag - Google Patents
Gas sampling bag Download PDFInfo
- Publication number
- CN2143774Y CN2143774Y CN 92245136 CN92245136U CN2143774Y CN 2143774 Y CN2143774 Y CN 2143774Y CN 92245136 CN92245136 CN 92245136 CN 92245136 U CN92245136 U CN 92245136U CN 2143774 Y CN2143774 Y CN 2143774Y
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- China
- Prior art keywords
- bag
- sampling
- air intake
- intake opening
- sampling head
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Abstract
The utility model relates to an air sampling bag. The traditional bladder type sampling bag has the defects of dead volume, easy leakage, etc. The air sampling bag comprises a bag body and a sampling head, wherein the bag body is formed by sealing and superposing four peripheral edges of two plane metal foils, and the sampling head comprises a main body of the sampling head, a connecting expansion ring, an air inlet sealing cap and an air outlet sealing cap. The main body of the sampling head is provided with a sampling air inlet, a sampling air outlet and a connecting opening. The air sampling bag of the utility model basically eliminates the defects of dead volume and easy leakage in the bag body, the air sampling bag is provided with the special sampling air outlet, and therefore, the air sampling bag has the advantage of convenient air taking.
Description
The utility model relates to a kind of gas sample bag, and this gas sample bag is widely used in gas sample, the storage of gathering, keep sample in the industries such as petrochemical complex, oil refining, chemical industry, medicine, metallurgy, environmental protection.
At present, in industries such as petrochemical complex, oil refining, gas taken a sample and do not have special instrument.Generally use a kind of vollyball inner bag, insert one section short glass tube on the bladders draft tube, connect the preceding paragraph medical latex tube again, as sample tap, emulsion tube is clamped with leather hose made of iron in the sampling back.There is following shortcoming in this method:
One. for the vollyball inner bag, can not be the whole emptyings of the air in the inner bag, and also inner bag stays suitable air, forms dead volume in bladders, reduced the purity of gas sampled, finally has influence on detection accuracy.
Two. owing to sample tap is made with short glass tube and medical latex tube, and clamp emulsion tube with clip.When unclamping clip to need from taking-up gas in this inner bag, can not take out gas easily, be used for detecting.
Three. make because of the vollyball inner bag adopts rubber usually, some micro-molecular gas are easier to ooze and let out, the accuracy of impact analysis, and can not preserve gas sampled for a long time; On the other hand, rubber is serious to the gas absorption phenomenon, causes the repeated test poor accuracy.
The purpose of this utility model is to provide a kind of gas sample bag that can eliminate dead volume substantially.And this gas sample bag is compared with traditional bladders sampling bag, gas ooze let out little.
Gas sample bag of the present utility model comprises bag and sampling head, and by its surrounding is overrided to form along sealing, bag is provided with sample tap to described bag by two planar metal paper tinsels; Described sampling head comprises sampling air intake opening, sampling gas outlet and the sampling head main body connector that is connected with bag, that be the threeway shape on it, connect packing, air intake opening sealing cap and gas outlet sealing cap; Described sampling head main body connector is truncated cone jaggy, passes sample tap and clamping ring on the bag successively, and sampling head main body and bag are tightly connected; The sampling air intake opening of described sampling head main body is truncated cone, and the inside surface of described air intake opening sealing cap openend has a circle bulge loop, is stuck on the sampling air intake opening; Sampling head main body sampling gas outlet is connected with the gas outlet sealing cap by gasket seal, and the gas outlet sealing cap is provided with the through hole of sampling usefulness.
Therefore as mentioned above, gas sample bag bag of the present utility model is overrided to form along sealing by two planar metal paper tinsel surroundings, can eliminate dead volume in the bag and gas basically and ooze and let out and adsorption phenomena.On the other hand, special sampling gas outlet is arranged on this gas sample bag sampling head, therefore can from the gas sample bag, take out gas easily.
Fig. 1 is the structural representation of gas sample bag of the present utility model;
Fig. 2 is the laminated construction figure that makes the bag material of Fig. 1;
Fig. 3 is the decomposition cross-sectional schematic of gas sample bag sampling head structure among Fig. 1;
Fig. 4 is that the A-A of Fig. 3 is to view;
Fig. 5 is the sampling head assembling structure cross-sectional schematic afterwards of Fig. 2;
Fig. 6 is the another kind of structure cross-sectional schematic of sampling air intake opening among Fig. 2.
Describe the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, gas sample bag of the present utility model comprises bag 1 and sampling head 2, is tightly connected between sampling head 2 and the bag 1.Bag 1 comprises two metal formings, and two metal formings are planar shaped, and their surroundings laminate along 11, form a bag 1.The stock of bag 1 is a metal forming, as aluminium foil, copper pool etc.Be to improve the sealing property of bag 1, the laminated construction of bag 1 as shown in Figure 2, it comprises metal forming 12, internal layer 13 and external protection 14, internal layer 13 can be used polypropylene material.Because the sealing that connects between the metal forming is not good, and between polypropylene based material and the metal forming and the sealing property that is connected between the polypropylene based material self preferable, therefore on metal forming 12, increase inner layer of polypropylene 13, like this, help to improve the sealing of bag 1.The effect of external protection 14 is protection metal formings 12, can make with polyester material.
Referring to Fig. 3, Fig. 3 shows the decomposition cross-sectional schematic of sampling head 2 structures among Fig. 1.As shown in Figure 3, this sampling head 2 comprises sampling head main body 21, connects packing 22, air intake opening sealing cap 23 and gas outlet sealing cap 24.Sampling air intake opening 21a, sampling gas outlet 21b and bag connector 21c are arranged on the sampling head main body 21, be the threeway shape.The head longitudinal cross-section of sampling head connector 21c is trapezoidal, its outside surface is the truncated cone (referring to Fig. 4) that four breach 21d are arranged as shown in Figure 4 a bulge loop 21e at the rear portion of the conehead of connector 21c, the conehead of connector 21c passes packing ring 25 during assembling, sample tap 15 on the bag 1 be connected packing 22, and make the frustum bottom of connector 21c block connection packing 22 and make bulge loop 21d withstand packing ring 25(referring to Fig. 5), realize that sampling head main body 21 and bag 1 are tightly connected.Its longitudinal cross-section of sampling air intake opening 21a of sampling head main body 21 is that one or two is trapezoidal, and its outside surface is truncated cone.Air intake opening sealing cap 23 has cap tube 23a, the 23b of two both ends opens, and cap tube 23b internal diameter is greater than cap tube 23a, and two cap tube 23a, 23b openend inside surface are provided with circle protruding 23c, a 23d.The cap tube 23a of air intake opening sealing cap 23 can directly be enclosed within on the sampling air intake opening 21a, and the protruding 23c of a circle in its cap tube 23a is stuck in the frustum of a cone bottom of sampling air intake opening 21a, seals sampling air intake opening (as shown in Figure 5).Referring to Fig. 6, when gas sample bag of the present utility model seals with emulsion tube 3, the emulsion tube 3 that is enclosed within on the sampling air intake opening 21a can be bent as shown in Figure 6, then thereon the cap tube 23b of air intake opening sealing cap 23 cover, and the protruding 23d of a circle in the cap tube 23b is stuck in the circular conical surface bottom of sampling air intake opening 21a, seals the sampling air intake opening.
Get back to Fig. 3, the sampling gas outlet 21b of sampling head main body 21 is provided with external thread 21d, and is provided with internal thread 24d in the gas outlet sealing cap 24, and also has through hole 24a on the gas outlet sealing cap 24.(see figure 5) gas outlet sealing cap 24 is screwed into sampling to seal sampling gas outlet 21b on the 21b of gas outlet by gasket seal 26 after can be with injector for medical purpose by the through hole 24a extracting gases on the gas outlet sealing cap 24, in order to detect.Above-mentioned gasket seal 26 can be made with silica gel material.Described in the present embodiment a kind of with spiral way seal the sampling gas outlet structure, but also can with aforesaid seal the sampling air intake opening the sort of structure.
In sum, gas sample bag of the present utility model is made bag with the planar metal paper tinsel, has overcome dead volume in the bag that traditional sampling bag exists and gas and has oozed and let out phenomenon.On the other hand, special sampling gas outlet is arranged on the sampling head of this gas sample bag, therefore can from the gas sample bag, take out gas easily.
Claims (3)
1, a kind of gas sample bag comprises bag and sampling head, it is characterized in that described bag by two planar metal paper tinsels by its surrounding is overrided to form along sealing, bag is provided with sample tap; Described sampling head comprises sampling air intake opening, sampling gas outlet and the sampling head main body connector that is connected with bag, that be the threeway shape on it, connect packing, air intake opening sealing cap and gas outlet sealing cap; Described sampling head main body connector is truncated cone jaggy, passes described sample tap and the described packing that is connected on the bag successively, and described sampling head main body and described bag are tightly connected; The sampling air intake opening of described sampling head main body is truncated cone, and the inside surface of described air intake opening sealing cap openend has a circle bulge loop, is stuck on the described sampling air intake opening; The described sampling gas outlet of described sampling head main body is connected with the gas outlet sealing cap by gasket seal, and described gas outlet sealing cap is provided with the through hole of sampling usefulness.
2, gas sample bag as claimed in claim 1 is characterized in that described bag is made up of external protection, metal forming and internal layer successively.
3, gas sample bag as claimed in claim 1 is characterized in that described air intake opening sealing cap has two cap tubes that internal diameter is different, is provided with a circle bulge loop in the openend of two cap tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92245136 CN2143774Y (en) | 1992-12-30 | 1992-12-30 | Gas sampling bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92245136 CN2143774Y (en) | 1992-12-30 | 1992-12-30 | Gas sampling bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2143774Y true CN2143774Y (en) | 1993-10-13 |
Family
ID=33784162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92245136 Expired - Lifetime CN2143774Y (en) | 1992-12-30 | 1992-12-30 | Gas sampling bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2143774Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115804A (en) * | 2013-01-17 | 2013-05-22 | 河北工程大学 | Method and device for collecting generated gas in simulation experiment for generating hydrocarbon by plants |
| CN103884542A (en) * | 2012-12-21 | 2014-06-25 | 上海磐合科学仪器股份有限公司 | Gas sampling bag |
| CN104068898A (en) * | 2013-03-29 | 2014-10-01 | 深圳市中核海得威生物科技有限公司 | Gas sampling bag and manufacturing method thereof |
| CN105301178A (en) * | 2015-11-30 | 2016-02-03 | 北京林业大学 | Experimental method measuring soil respiration via laboratory simulating dry-wet alternate responses |
| CN109520782A (en) * | 2018-12-10 | 2019-03-26 | 黔西县黔希煤化工投资有限责任公司 | A kind of application of vacuum method in analytical sampling |
-
1992
- 1992-12-30 CN CN 92245136 patent/CN2143774Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884542A (en) * | 2012-12-21 | 2014-06-25 | 上海磐合科学仪器股份有限公司 | Gas sampling bag |
| CN103115804A (en) * | 2013-01-17 | 2013-05-22 | 河北工程大学 | Method and device for collecting generated gas in simulation experiment for generating hydrocarbon by plants |
| CN104068898A (en) * | 2013-03-29 | 2014-10-01 | 深圳市中核海得威生物科技有限公司 | Gas sampling bag and manufacturing method thereof |
| CN104068898B (en) * | 2013-03-29 | 2016-01-20 | 深圳市中核海得威生物科技有限公司 | A kind of gas sampling bag and manufacture method thereof |
| CN105301178A (en) * | 2015-11-30 | 2016-02-03 | 北京林业大学 | Experimental method measuring soil respiration via laboratory simulating dry-wet alternate responses |
| CN109520782A (en) * | 2018-12-10 | 2019-03-26 | 黔西县黔希煤化工投资有限责任公司 | A kind of application of vacuum method in analytical sampling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |