CN204405390U - A kind of gas sampler - Google Patents
A kind of gas sampler Download PDFInfo
- Publication number
- CN204405390U CN204405390U CN201520119699.3U CN201520119699U CN204405390U CN 204405390 U CN204405390 U CN 204405390U CN 201520119699 U CN201520119699 U CN 201520119699U CN 204405390 U CN204405390 U CN 204405390U
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- China
- Prior art keywords
- pipe
- guide tube
- valve
- air guide
- collection bag
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relate to a kind of be suitable for can flexibly, precise acquisition normal pressure or be less than the gas collecting device of normal pressure, it comprises: casing 1, collection bag 2, rain glass 3, removable cover 4, first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3, valve 6, negative pressure mechanism 7 and relief hole 8 form.Wherein interface 9 external connecting negative pressure mechanism 7; First pipe 5-1 connects thief hatch valve 10 and collection bag 2; Apart from being connected with the second pipe 5-2 with collection bag 1-3cm place on first pipe 5-1; The second pipe 5-2 other end is connected at the outer valve 6 of case with the 3rd pipe 5-3; The opposite side opening of the 3rd pipe 5-3 inserts in case.The utility model can effectively be removed due to residual gas in pipeline, improves the accuracy of testing result, under the prerequisite not affecting detection accuracy, can adopt longer sampling line, sample convenient, flexible.
Description
Technical field
The utility model relates to a kind of gas sampler, specifically a kind of be suitable for can flexibly, precise acquisition normal pressure or be less than the gas collecting device of normal pressure.
Background technology
At present, gas sampler great majority are applicable to the gas collecting of pressure higher than normal pressure, because the intrinsic pressure of sample gas can form pressure reduction, sample gas is directly forced in press-in sampling thief by recycling gas displacement method.Although at present existing corresponding normal pressure or be less than the gas collecting device of normal pressure, as the corresponding prior art that Chinese Patent Application No. is 201310404356.7, compensate for the blank of corresponding research, but in actual application, be still in the part that is further improved accordingly, outstanding behaviours in following two, first, sampler bag is placed among sampling apparatus, be connected with vacuum plant, cause sampling bag directly not take out, it is very inconvenient to cause operating in sampling process.In practical operation, sampling pipeline can only be extended.But along with the prolongation of sampling pipeline, the gas that sampling pipeline Central Plains has cannot be discharged, and enters in sampler bag, causes the inaccurate of testing result.The second, in actual application, usually need a people to sample, another person controls harvester, is difficult to the independent operation realizing a people.
Summary of the invention
The technical problems to be solved in the utility model is the above-mentioned defect how overcoming prior art, provides a kind of atmosphere gas sampling thief.Originally auspicious device is adopted, as Fig. 1 gas sampler is made up of casing 1, collection bag 2, rain glass 3, removable cover 4, first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3, valve 6, negative pressure mechanism 7 and relief hole 8.Wherein interface 9 external connecting negative pressure mechanism 7; First pipe 5-1 connects thief hatch valve 10 and collection bag 2; Apart from being connected with the second pipe 5-2 with collection bag 1-3cm place on first pipe 5-1; The second pipe 5-2 other end is connected at the outer valve 6 of case with the 3rd pipe 5-3; The opposite side opening of the 3rd pipe 5-3 inserts in case.
Due to the effect of negative pressure mechanism, produce negative pressure in casing 1, thus ambient atmos is entered in collection bag 2 by pipe.Entering collection bag to solve original gas in pipe, affecting the problem of testing result, between the second pipe 5-2 and the 3rd pipe 5-3, being provided with valve 6.Before sampling, vacuum pump is opened after opening valve 6, gas to be collected enters the first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3 by thief hatch, until gas displacement original in pipe be after the gas collected, valve-off 6, gas to be collected is entered in collection bag 2 by the first pipe 5-1, gathers complete thief hatch valve 10, open relief hole 8, complete sampling.
The utility model is in order to realize the independent operation of a people further.As shown in Figure 2, thief hatch valve 10 changes circular valve 11 into, cancels valve 6, extends near the first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3 to thief hatch, be connected on respectively on circular valve 11.As figure, circular valve shown in 3-4 is made up of and rotation axis 11-3 chassis 11-1, rotating disk 11-2, chassis 11-1 is uniformly distributed 5 air guide tube heads, wherein the 4th air guide tube head 12-4 closes, 5th air guide tube head 12-5 is connected with sampling pipe, and the first air guide tube head 12-1, the second air guide tube head 12-2, the 3rd air guide tube head 12-3 are connected with the first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3 respectively.It is can connect the elongated slot 13 of three air guide tube heads and can be connected the short groove 14 of two air guide tube heads that rotating disk is provided with length.
When sampling as shown in figure 3-1, the 5th air guide tube head 12-5 is connected with the 3rd air guide tube head 13-3, and ambient atmos directly enters in sampling box by the 3rd pipe 5-3, and the first pipe 5-1, the second pipe 5-2 are not in communication with the outside.Before sampling, sampling line mouth is placed in source of the gas, rotating disk is rotated clockwise 72 degree, as shown in figure 3-2, after gas to be collected enters valve elongated slot by the 5th air guide tube head 12-5, enter the first pipe 5-1 by the first air guide tube head 12-1, in case, enter the second pipe 5-2, enter circular valve second air guide tube head 12-2 further, by short groove, enter the 3rd pipe 5-3 by the 3rd air guide tube head 12-3, the gas in former pipeline is all replaced by gas to be collected, and is full of whole pipeline.During sampling, then rotating disk is rotated clockwise 72 degree, as shown in Fig. 3-3, the 3rd pipe 5-3 is closed, and sampling box produces negative pressure, and gas to be collected is directly directly entered in sampler bag by the first pipe 5-1 and the second pipe 5-2 by elongated slot.Sampling terminates rear rotating disk and rotates clockwise 144 degree, is reduced to Fig. 3-1, gathers and terminates.
beneficial effect:
1 the utility model can effectively be removed due to residual gas in pipeline, improves the accuracy of testing result.
2 the utility model, under the prerequisite not affecting detection accuracy, can adopt longer sampling line, sample convenient, flexible.
3 the utility model adopt Remote control valve, can realize a people and control for whole sampling process at thief hatch, realize people's independent operation.
In 4 sampling processes, only occur negative pressure when sampling in sampling box, after gas is full of sampler bag, pressure release immediately, avoids because band inside and outside differential pressure is excessive, for the damage of sampler bag.
accompanying drawing illustrates:
Fig. 1 is the front view of embodiment 1.
Fig. 2 is the front view of embodiment 2.
Fig. 3 is the circular valve front view of embodiment 2.
Fig. 4 is the circular valve vertical view of embodiment 2.
Fig. 5 is the front view of embodiment 3.
Fig. 6 is the front view of embodiment 4.
embodiment:
Embodiment 1
As shown in Figure 1: originally adopt auspicious device and be made up of casing 1, collection bag 2, rain glass 3, removable cover 4, first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3, valve 6, negative pressure mechanism 7 and relief hole 8.Wherein interface 9 external connecting negative pressure mechanism 7; First pipe 5-1 is connected to thief hatch valve 10 and collection bag 2; Apart from being connected with the second pipe 5-2 with collection bag 1-3cm place on first pipe 5-1; The second pipe 5-2 other end is connected at the outer valve 6 of case with the 3rd pipe 5-3; The opposite side opening of the 3rd pipe 5-3 inserts in case.
Embodiment 2
On the basis of embodiment 1, its difference is: as shown in Figure 2, and thief hatch valve 10 changes circular valve 11 into, cancels valve 6, extends near the first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3 to thief hatch, be connected on respectively on circular valve 11.Circular valve is made up of chassis, 11-1 rotating disk 11-2 and rotation axis 11-3 as shown in Figure 3-4, chassis 11-1 is uniformly distributed 5 air guide tube heads, wherein the 4th air guide tube head 12-4 closes, 5th air guide tube head 12-5 is connected with sampling pipe, the first air guide tube head 12-1, the second air guide tube head 12-2, the 3rd air guide tube head 12-3, is connected with the first pipe 5-1, the second pipe 5-2, the 3rd pipe 5-3 respectively.It is can connect the elongated slot 13 of three air guide tube heads and can be connected the short groove 14 of two air guide tube heads that rotating disk is provided with length.
Embodiment 3
With reference to Fig. 5, on the basis of embodiment 1, its difference is: the second pipe 5-2 is linked at the bottom of collection bag 2.When gathering gas, can multiple switching valve 6 be passed through, make gas to be checked be full of collection bag.
The utility model can be applied due-in gas collection body for collection bag and rinse, and avoids gas remaining in collection bag and material for the interference of testing result, realizes repeatedly using of collection bag.
Embodiment 4
With reference to Fig. 6, on the basis of embodiment 2, its difference is: the second pipe 5-2 is linked at the bottom of collection bag 2.
Claims (4)
1. a gas sampler, is made up of casing (1), collection bag (2), rain glass (3), removable cover (4), the first pipe (5-1), the second pipe (5-2), the 3rd pipe (5-3), valve (6), negative pressure mechanism (7) and relief hole (8); Wherein interface (9) external connecting negative pressure mechanism (7); First pipe (5-1) connects thief hatch valve (10) and collection bag (2); First pipe (5-1) is upper to be connected apart from managing (5-2) with collection bag 1-3cm place with second; Second pipe (5-2) other end is managed (5-3) and is connected at the outer valve (6) of case with the 3rd; The opposite side opening of the 3rd pipe (5-3) inserts in case.
2. a kind of gas sampler according to claim 1, it is characterized in that: thief hatch valve (10) changes circular valve (11) into, cancel valve (6), extend near the first pipe (5-1), the second pipe (5-2), the 3rd pipe (5-3) to thief hatch, be connected on circular valve (11) respectively; Circular valve (11) is made up of chassis (11-1), rotating disk (11-2) and fixed bias circuit (11-3), chassis (11-1) is uniformly distributed 5 air guide tube heads, wherein the 4th air guide tube head (12-4) air guide tube head is closed, 5th air guide tube head (12-5) is connected with sampling pipe, and the first air guide tube head (12-1), the second air guide tube head (12-2), the 3rd air guide tube head (12-3) are managed (5-1), second respectively and managed (5-2), the 3rd and manage (5-3) and be connected with first; It is can connect the elongated slot (13) of three air guide tube heads and can be connected the short groove (14) of two air guide tube heads that rotating disk is provided with length.
3. a kind of gas sampler according to claim 1, is characterized in that: the second pipe (5-2) is linked at the bottom of collection bag (2).
4. a kind of gas sampler according to claim 2, is characterized in that: the second pipe (5-2) is linked at the bottom of collection bag (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119699.3U CN204405390U (en) | 2015-03-01 | 2015-03-01 | A kind of gas sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119699.3U CN204405390U (en) | 2015-03-01 | 2015-03-01 | A kind of gas sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405390U true CN204405390U (en) | 2015-06-17 |
Family
ID=53429240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520119699.3U Expired - Fee Related CN204405390U (en) | 2015-03-01 | 2015-03-01 | A kind of gas sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204405390U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784435A (en) * | 2016-04-28 | 2016-07-20 | 山东省产品质量检验研究院 | Full-automatic charging type negative air collector |
| CN106053157A (en) * | 2016-05-18 | 2016-10-26 | 上海化工研究院 | Generated nitrogen driven portable gas rapid sampling device |
| CN106556527A (en) * | 2016-12-01 | 2017-04-05 | 上海唐辉电子有限公司 | A kind of accurate air detection instrument with sealing structure |
-
2015
- 2015-03-01 CN CN201520119699.3U patent/CN204405390U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784435A (en) * | 2016-04-28 | 2016-07-20 | 山东省产品质量检验研究院 | Full-automatic charging type negative air collector |
| CN106053157A (en) * | 2016-05-18 | 2016-10-26 | 上海化工研究院 | Generated nitrogen driven portable gas rapid sampling device |
| CN106053157B (en) * | 2016-05-18 | 2019-04-05 | 上海化工研究院有限公司 | A kind of generation nitrogen driving portable gas quick sampling device |
| CN106556527A (en) * | 2016-12-01 | 2017-04-05 | 上海唐辉电子有限公司 | A kind of accurate air detection instrument with sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160301 |