CN208999195U - A kind of easy gas dilution, pressurizing device - Google Patents
A kind of easy gas dilution, pressurizing device Download PDFInfo
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- CN208999195U CN208999195U CN201820958630.3U CN201820958630U CN208999195U CN 208999195 U CN208999195 U CN 208999195U CN 201820958630 U CN201820958630 U CN 201820958630U CN 208999195 U CN208999195 U CN 208999195U
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- mouthfuls
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Abstract
A kind of easy gas dilution, pressurizing device form different gas circuit modes by the switching of three-way cut-off valve, two logical shut-off valves, six mouthfuls of switching valves.It completes gas circuit to vacuumize, sample can pressurization, enriched sample quantitatively dilutes, and also solves the problems, such as that negative pressure, concora crush tank sample gas sample strain are insufficient.The A mouth (51) of six mouthfuls of switching valves (5) of the device and D mouthfuls (54) connect quantitative loop (6), meet three-way cut-off valve B(3 for B mouthfuls (52)), it connects detecting instrument injection port (11) for C mouthfuls (53), E mouthfuls (55) connect threeway (10), and F mouthfuls (56) connect two logical shut-off valves (4)；Three-way cut-off valve A(2) three mouths meet vacuum diaphragm pump (9), three-way cut-off valve B(3 respectively), another mouth of two logical shut-off valves (4)；Three-way cut-off valve B(3) zero gas cylinder (1) of third mouth tape splicing second depressurized valve, the another two mouth of threeway (10) connects electronic pressure gauge (7) and with cylinder valve sample can (8).
Description
Technical field
The utility model relates to a kind of easy gas dilutions, pressurizing device, especially suitable for high concentrations of gas sample introduction
When be diluted and solve the problems, such as sample introduction caused by negative pressure, concora crush tank sample gas sample strain are insufficient.
Background technique
Halogen greenhouse gas concentration in natural atmosphere is extremely low, usually fluctuates near ATMOSPHERICAL BACKGROUND concentration, using substantially
It is analyzed after product pre-concentration using Gc/ms Analyser.But following situations will affect the analysis of acquisition sample: 1) emission source
The gaseous sample nearby acquired, concentration can exceed 2 to 3 orders of magnitude of instrument detection range.Detecting instrument is for sampling volume
There is certain correcting range, merely reduce sample introduction total volume, the error as caused by volume deviation can be very big.2) sample acquired
Insufficient pressure, even negative pressure or concora crush then cause analysis deviation excessive because sample introduction total volume is too small.
Innovative point:
Present apparatus simple structure, it is at low cost, realize for high concentration concora crush or negative pressure sample rapid dilution and
Pressurized treatments, so that sample is suitable for the analysis of large volume pre-concentration analysis system.
Summary of the invention
In order to plug a gap, the utility model provides a kind of easy gas dilution, pressurizing device.Device is by band second level
1 bottle of zero gas cylinder of pressure reducing valve, three-way cut-off valve 2, two logical shut-off valve, 1, six mouthfuls switching valves 1, quantitative loop 1, electronics pressure
Power meter 1, band cylinder valve sample can 1, vacuum diaphragm pump 1, threeway 1 composition, connection relationship are as shown in Figure 1.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of easy gas dilution, pressurizing device, including it is band zero gas cylinder of second depressurized valve, three-way cut-off valve, two logical
Shut-off valve, six mouthfuls of switching valves, quantitative loop, electronic pressure gauge, band cylinder valve sample can, vacuum diaphragm pump, threeway.Six mouthfuls of the device
The A mouth 51 and D mouth 54 of switching valve 5 connect quantitative loop 6, and B mouth 52 meets three-way cut-off valve B 3, and C mouth 53 connects detecting instrument injection port 11, E
Mouth 55 connects threeway 10, and F mouth 56 connects two logical shut-off valves 4；Three mouths of three-way cut-off valve A 2 connect vacuum diaphragm pump 9 respectively, and threeway is cut
Only valve B 3, another mouth of two logical shut-off valves 4；Zero gas cylinder 1 of third mouth tape splicing second depressurized valve of three-way cut-off valve B 3,
The another two mouth of threeway 10 connects electronic pressure gauge 7 and with cylinder valve sample can 8.The device has the sample of certain pressure for high concentration
When, it need to allow sample after small size quantitative loop 6 is quantitative, sample introduction is pushed by zero gas, not only achievees the effect that dilute sample, but also can protect
Hold appropriate sampling volume.Sampled pressure is the sample of negative pressure or concora crush, for the sample in instrument detection range, usable zero
Gas is pressurized to 2 ~ 3 times, then directly analyzes.Pressure is utilized after needing sample introduction pipeline to vacuumize for high concentration negative pressure or concora crush sample
Power difference drains sample introduction to quantitative loop 6, recycles zero gas to push sample introduction, completes dilution.
The utility model has the beneficial effects that it is too low not more than instrument detection range or sample strain to solve sample concentration
It is able to satisfy the problem of analysis system requires.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1, Fig. 2, Fig. 3 are the structure principle chart of a kind of easy gas dilution, pressurizing device, respectively second depressurized
Zero gas cylinder 1 of valve, three-way cut-off valve A 2, three-way cut-off valve B 3, two logical shut-off valve 4, six mouthfuls of switching valves 5, quantitative loops 6, electronics
Pressure gauge 7, band cylinder valve sample can 8, vacuum diaphragm pump 9, threeway 10.
Specific embodiment
High concentration can be had pressurised samples to be diluted sample introduction by the present apparatus.As six mouthfuls of switching valves 5 of Fig. 1 are in A, two logical sections
Only valve 4 is in the open state, and 21 mouthfuls of three-way cut-off valve A 2 is allowed to be connected to 23 mouthfuls, and 32 mouthfuls of three-way cut-off valve B 3 and 33 mouthfuls
Connection, vacuum diaphragm pump 9 must shut off.Open and close sample can cylinder valve, after sample gas rinses quantitative loop 3 times, gas is in quantitative loop
It is balanced in 6, six mouthfuls of switching valves 5 switch to B (such as Fig. 2).Sample in quantitative loop 6 is in the promotion in zero gas by instrument setting stream
Measure sample introduction.
The present apparatus can be used for the sample introduction of high concentration concora crush, negative pressure sample.As six mouthfuls of switching valves 5 of Fig. 1 are in A, two logical sections
Only valve 4 is in the open state, and 21 mouthfuls of three-way cut-off valve A 2 is allowed to be connected to 23 mouthfuls, 32 mouthfuls of positions of three-way cut-off valve B 3 and 33 mouthfuls
Connection.In the case where guaranteeing that sample can cylinder valve is closed, vacuum diaphragm pump 9 is opened, pipeline is evacuated to -0.089Pa.Two are led to
Shut-off valve 4 is closed, and sample can cylinder valve air inlet is opened.Repeated admission vacuumizes sample step 3 time, is rinsed.Last pipeline is being taken out
Under vacuum state, two logical shut-off valves 4 are closed, open sample can cylinder valve air inlet, gas sample introduction in quantitative loop 6 balances.Six mouthfuls are cut
It changes valve 5 and is in B (such as Fig. 2).Sample in quantitative loop 6 sets flow sample introduction by instrument in the promotion in zero gas.
The present apparatus can be used for the pressurized treatments of normal concentration concora crush, negative pressure sample.If six mouthfuls of switching valves 5 of Fig. 3 are in B,
21 mouthfuls of three-way cut-off valve A 2 are allowed to be connected to 23 mouthfuls, 31 mouthfuls of positions of three-way cut-off valve B 3 are connected to 33 mouthfuls of positions.Open two logical sections
Pipeline is evacuated to -0.089Pa by only valve 4.Close two logical shut-off valves 4, pressure maintaining leak detection.22 mouthfuls of switching three-way shut-off valve A 2
It is connected to 23 mouthfuls, opens two logical shut-off valves 4, zero gas is charged into pipeline and switches to 21 to about 124000Pa, then by three-way cut-off valve A 2
Mouth is connected to 23 mouthfuls, then is vacuumized.Repeated admission vacuumizes sample step 5 time, carries out flushing of pipeline.Pipeline finally exhausts very
Sky closes two logical shut-off valves 4, opens sample can cylinder valve, the sample can gas pressure that record electronic pressure gauge is shown.According to record
Reset pressure and the multiple of being pressurizeed calculate final moulding pressure.It is adjusted to zero gas cylinder second depressurized valve pressure to be slightly less than calculating
22 mouthfuls of final pressure, last three-way cut-off valve A 2 are connected to 23 mouthfuls, and 31 mouthfuls of three-way cut-off valve B 3 are connected to 33 mouthfuls, are opened
Two logical shut-off valves 4 open sample can cylinder valve and pressurize, and equilibrate to final pressure by adjusting zero gas cylinder second depressurized valve.
Claims (3)
1. a kind of easy gas dilution, pressurizing device, including band zero gas cylinder of second depressurized valve, three-way cut-off valve, two logical sections
Only valve, six mouthfuls of switching valves, quantitative loop, electronic pressure gauge, band cylinder valve sample can, vacuum diaphragm pump, threeway；It is characterized in that, six
The A mouth (51) of mouthful switching valve (5) and D mouthfuls (54) connect quantitative loop (6), and B mouthfuls (52) meet three-way cut-off valve B(3), C mouthfuls (53) connect inspection
It surveys instrument injection port (11), E mouthfuls (55) connect threeway (10), and F mouthfuls (56) connect two logical shut-off valves (4)；Three-way cut-off valve A(2) three
A mouth meets vacuum diaphragm pump (9), three-way cut-off valve B(3 respectively), another mouth of two logical shut-off valves (4)；Three-way cut-off valve B(3)
Zero gas cylinder (1) of third mouth tape splicing second depressurized valve, the another two mouth of threeway (10) connects electronic pressure gauge (7) and with cylinder valve
Sample can (8).
2. a kind of easy gas dilution according to claim 1, pressurizing device, which is characterized in that six mouthfuls of switching valves (5)
When positioned at A, it is connected to F mouthfuls (56) for A mouthfuls (51) in valve, B mouthfuls (52) are connected to C mouthfuls (53), and D mouthfuls (54) are connected to E mouthfuls (55).
3. a kind of easy gas dilution according to claim 1, pressurizing device, which is characterized in that six mouthfuls of switching valves (5)
When positioned at B, it is connected to B mouthfuls (52) for A mouthfuls (51) in valve, C mouthfuls (53) are connected to D mouthfuls (54), and E mouthfuls (55) are connected to F mouthfuls (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958630.3U CN208999195U (en) | 2018-06-21 | 2018-06-21 | A kind of easy gas dilution, pressurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820958630.3U CN208999195U (en) | 2018-06-21 | 2018-06-21 | A kind of easy gas dilution, pressurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208999195U true CN208999195U (en) | 2019-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820958630.3U Expired - Fee Related CN208999195U (en) | 2018-06-21 | 2018-06-21 | A kind of easy gas dilution, pressurizing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208999195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180020A (en) * | 2019-07-02 | 2021-01-05 | 宁波市欣宁信息科技有限公司 | Chromatographic separation system based on two-position three-way valve |
| CN113405887A (en) * | 2021-06-02 | 2021-09-17 | 北京高斯匹克技术有限公司 | Multi-channel high-precision static dilution system |
-
2018
- 2018-06-21 CN CN201820958630.3U patent/CN208999195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180020A (en) * | 2019-07-02 | 2021-01-05 | 宁波市欣宁信息科技有限公司 | Chromatographic separation system based on two-position three-way valve |
| CN113405887A (en) * | 2021-06-02 | 2021-09-17 | 北京高斯匹克技术有限公司 | Multi-channel high-precision static dilution system |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190618 Termination date: 20200621 |
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| CF01 | Termination of patent right due to non-payment of annual fee |