CN104075915A - Vacuum pipeline system and method for gas sampling - Google Patents
Vacuum pipeline system and method for gas sampling Download PDFInfo
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- CN104075915A CN104075915A CN201410349928.0A CN201410349928A CN104075915A CN 104075915 A CN104075915 A CN 104075915A CN 201410349928 A CN201410349928 A CN 201410349928A CN 104075915 A CN104075915 A CN 104075915A
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Abstract
The invention relates to a vacuum pipeline system and method which are mainly used for gas sampling in environmental monitoring, in particular to a vacuum pipeline system and method for gas sampling. The vacuum pipeline system comprises an inlet non-return valve, a pressure-limiting valve, a pipeline selection device and sampling tanks which are sequentially connected with one another through a high-pressure pipeline, as well as a vacuum-pumping device which is in parallel connection with the sampling tanks, and then is connected with the pipeline selection device through the high-pressure pipeline. Therefore, the vacuum pipeline system has the following advantages that 1, the structure is simplified, and air passages can be more centralized, short and smooth; 2, the operation is simple, and the switching between inflation and suction can be automatically completed, without manual intervention; 3, the functions are complete, not only dry gas can be inflated, but also wet gas can be inflated; 4, the use is safe, and the safety valve technology is adopted, so that the self protective capability of equipment can be ensured when inflation pressure is overlarge.
Description
Technical field
The present invention relates to a kind of vacuum line system and method, be mainly used in the gas sampling in environmental monitoring, be specifically related to a kind of vacuum line system and method for gas sampling.
Background technology
The fast development of modern industry has brought great raising and convenient to the mankind's culture life and material life; but the pollution that has thereupon also produced indoor-outdoor air simultaneously; therefore; monitoring to atmospheric environment and improvement have caused the concern in the world, and the various research to atmospheric environment protection and measure have become the whole mankind's responsibility.As one of important step of atmosphere environment supervision, gas sampling is exactly to collect the gas discharging, and by the gas experiment Analysis to collected, draw composition and the content of collected gas, thereby draw the conclusion that whether needs institute's emission gases to carry out harmless treatment.
At present, there is following problem in the gas sampling mode adopting in the monitoring of atmosphere: 1. equipment pipe complexity, the circuit design of existing gas sampling equipment adopts threeway or straight coupling more, use a large amount of solenoid valves simultaneously, have how many passages, use how many solenoid valves, and when work, each solenoid valve all will be switched on always, thereby make the pipeline complexity of equipment, bulky, be difficult for installing and using.2. automaticity is low, and the gas circuit in existing gas sampling equipment designs main employing and manually adds automatic mode and control, and needs manual switchover in inflation with while bleeding, is difficult to realize automatic switching function.3. function singleness, the design of gas circuit in existing gas sampling equipment can only realize the single dry gas function of filling, without the function of filling moisture.4. poor stability, equipment is in the time that charge pressure is excessive, and, there is potential safety hazard in the pipeline difficulty of easily breaking.
Summary of the invention
The present invention is mainly the technical matterss such as the existing equipment pipe complexity of solution prior art, automaticity are low, function singleness, poor stability, and a kind of vacuum line system and method for gas sampling is provided.Adopt this vacuum line system and method, device structure is simple, method easy operating, and security is better, can automatically complete inflation and the switching of bleeding, and can complete and fill moisture operation.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals:
A kind of vacuum line system for gas sampling, comprise: the inlet one-way valve, pressure limiting valve, pipeline selecting arrangement, the sample can that connect successively by pressure duct, with described sample can parallel join and then be connected in the vacuum extractor of described pipeline selecting arrangement by pressure duct, described vacuum extractor comprises the 4th solenoid valve and the vacuum pump of connecting successively by pressure duct; Described pipeline selecting arrangement comprises dry gas pipeline and the moisture pipeline of mutual parallel join, and wherein, described dry gas pipeline comprises the first solenoid valve being placed on pressure duct passage; Described moisture pipeline comprises retaining valve, vacuum liquid bottle, second solenoid valve of connecting successively by pressure duct; The inlet end of described vacuum liquid bottle mesohigh pipeline is connected with a filtering plug and is positioned under bottle liquid surface, and the outlet side vicinal of described vacuum liquid bottle mesohigh pipeline is in bottle on liquid surface.
Optimize, above-mentioned a kind of vacuum line system for gas sampling, also comprise a pressure-display device that is connected in again described pipeline selecting arrangement after in parallel with described sample can by pressure duct, described pressure-display device comprises the 5th solenoid valve and the vacuum meter of connecting successively by pressure duct.
Optimize, above-mentioned a kind of vacuum line system for gas sampling, also comprise one with described sample can parallel join after be connected in the safety valve on described pipeline selecting arrangement by pressure duct again.
Optimize, above-mentioned a kind of vacuum line system for gas sampling, also comprise one with the quieter being connected with described pipeline selecting arrangement by pressure duct again after described sample can parallel connection, described quieter comprises pressure transducer, the 3rd solenoid valve, the exhaust box of connecting successively by pressure duct.
A method of utilizing above-mentioned vacuum line system to carry out gas sampling, comprising:
Preparation process, is connected to inlet one-way valve by outside hyperbaric environment, then utilizes vacuum extractor by vacuum line system vacuum pumping state;
Aeration step, opens inlet one-way valve, utilizes pipeline selecting arrangement to inflate to sample can;
Pump step, closes inlet one-way valve, opens the 4th solenoid valve, uses vacuum pump by system vacuum pumping state.
Optimize, the above-mentioned vacuum line system of utilizing is carried out the method for gas sampling, and what in described aeration step, be filled with is dry gas, and this aeration step further comprises: close the second solenoid valve, open the first solenoid valve.
Optimize, the above-mentioned vacuum line system of utilizing is carried out the method for gas sampling, and what in described aeration step, be filled with is moisture, and this aeration step further comprises: close the first solenoid valve, open the second solenoid valve.
Therefore, tool of the present invention has the following advantages: 1. structure is simplified, and gas circuit is more concentrated, brief, smooth; 2. switching simple to operate, automatically to complete inflation and bleed, without manual intervention; 3. perfect in shape and function, not only fills dry gas, can also fill moisture; 4. use safety, adopt safety valve technology, the self-protection ability of guarantee equipment in the time that charge pressure is excessive.
Brief description of the drawings
Fig. 1 is structural drawing of the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.In figure, inlet one-way valve 1, pressure limiting valve 2, pipeline selecting arrangement 3, sample can 4, vacuum extractor 5, the 4th solenoid valve 501, vacuum pump 502, pressure-display device 6, the 5th solenoid valve 601, vacuum meter 602, safety valve 7, pressure transducer 801, the 3rd solenoid valve 802, exhaust box 803.
Embodiment:
Vacuum line system for gas sampling shown in Figure 1, comprise: the inlet one-way valve 1, pressure limiting valve 2, pipeline selecting arrangement 3, the sample can 4 that connect successively by pressure duct, with sample can 4 parallel joins and then be connected in vacuum extractor 5, pressure-display device 6, safety valve 7, the quieter 8 of pipeline selecting arrangement 3 by pressure duct; Wherein: vacuum extractor comprises the 4th solenoid valve 501 and the vacuum pump 502 of connecting successively by pressure duct; Pipeline selecting arrangement 3 comprises dry gas pipeline and the moisture pipeline of mutual parallel join, and wherein, dry gas pipeline comprises the first solenoid valve 301 being placed on pressure duct passage; Moisture pipeline comprises retaining valve 302, vacuum liquid bottle 303, second solenoid valve 304 of connecting successively by pressure duct; The inlet end of vacuum liquid bottle 303 mesohigh pipelines is connected with a filtering plug 305 and is positioned under bottle liquid surface, and the outlet side vicinal of vacuum liquid bottle 303 mesohigh pipelines is in bottle on liquid surface; Pressure-display device 6 comprises the 5th solenoid valve 601 and the vacuum meter 602 of connecting successively by pressure duct; Quieter 8 is connected with pipeline selecting arrangement 3 by pressure duct with after sample can 4 parallel connections again, and quieter 8 comprises pressure transducer 801, the 3rd solenoid valve 802, the exhaust box 803 of connecting successively by pressure duct.
The gas circuit design of the present embodiment adopts the mode of simplifying most, as more use four-way connections, and does not adopt threeway or straight coupling, thereby makes gas circuit more concentrated, brief, smooth.Wherein: vacuum liquid bottle 303 in gas replenishment process, make gas pass through a period of time in vacuum liquid bottle, thereby complete twin conduit fills the process of moisture after sealing in the middle of gas circuit; Safety valve 7 can ensure the self-protection ability of equipment in the time that charge pressure is excessive.
The gas sampling of the present embodiment comprises the following steps: preparation process, outside hyperbaric environment is connected to inlet one-way valve 1, and then utilize vacuum extractor 5 by vacuum line system vacuum pumping state; Aeration step, opens inlet one-way valve 1, utilizes pipeline selecting arrangement 3 to inflate to sample can 4; Pump step, closes inlet one-way valve 1, opens the 4th solenoid valve 501, uses vacuum pump 502 by system vacuum pumping state.
Wherein, in aeration step, can be filled with as required dry gas or moisture.While being filled with dry gas, close the second solenoid valve 304, open the first solenoid valve 301; While being filled with moisture, close the first solenoid valve 301, open the second solenoid valve 304.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although more used the terms such as inlet one-way valve 1, pressure limiting valve 2, pipeline selecting arrangement 3, sample can 4, vacuum extractor 5, the 4th solenoid valve 501, vacuum pump 502, pressure-display device 6, the 5th solenoid valve 601, vacuum meter 602, safety valve 7, pressure transducer 801, the 3rd solenoid valve 802, exhaust box 803 herein, do not got rid of the possibility that uses other term.Using these terms, is in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction is all contrary with spirit of the present invention.
Claims (7)
1. the vacuum line system for gas sampling, comprise: the inlet one-way valve (1), pressure limiting valve (2), pipeline selecting arrangement (3), the sample can (4) that connect successively by pressure duct, with described sample can (4) parallel join and then be connected in the vacuum extractor (5) of described pipeline selecting arrangement (3) by pressure duct, described vacuum extractor comprises the 4th solenoid valve (501) and the vacuum pump (502) of connecting successively by pressure duct; It is characterized in that, described pipeline selecting arrangement (3) comprises dry gas pipeline and the moisture pipeline of mutual parallel join, and wherein, described dry gas pipeline comprises the first solenoid valve (301) being placed on pressure duct passage; Described moisture pipeline comprises retaining valve (302), vacuum liquid bottle (303), second solenoid valve (304) of connecting successively by pressure duct; The inlet end of described vacuum liquid bottle (303) mesohigh pipeline is connected with a filtering plug (305) and is positioned under bottle liquid surface, and the outlet side vicinal of described vacuum liquid bottle (303) mesohigh pipeline is in bottle on liquid surface.
2. a kind of vacuum line system for gas sampling according to claim 1, it is characterized in that, also comprise a pressure-display device (6) that is connected in again described pipeline selecting arrangement (3) after in parallel with described sample can (4) by pressure duct, described pressure-display device (6) comprises the 5th solenoid valve (601) and the vacuum meter (602) of connecting successively by pressure duct.
3. a kind of vacuum line system for gas sampling according to claim 1, it is characterized in that, also comprise one with described sample can (4) parallel join after be connected in the safety valve (7) on described pipeline selecting arrangement (3) by pressure duct again.
4. a kind of vacuum line system for gas sampling according to claim 1, it is characterized in that, also comprise one with the quieter (8) being connected with described pipeline selecting arrangement (3) by pressure duct again after described sample can (4) parallel connection, described quieter (8) comprises pressure transducer (801), the 3rd solenoid valve (802), the exhaust box (803) of connecting successively by pressure duct.
5. a method of utilizing the vacuum line system described in claim 1 to carry out gas sampling, is characterized in that, comprising:
Preparation process, is connected to inlet one-way valve (1) by outside hyperbaric environment, then utilizes vacuum extractor (5) by vacuum line system vacuum pumping state;
Aeration step, opens inlet one-way valve (1), utilizes pipeline selecting arrangement (3) to inflate to sample can (4);
Pump step, closes inlet one-way valve (1), opens the 4th solenoid valve (501), uses vacuum pump (502) by system vacuum pumping state.
6. the method for utilizing vacuum line system to carry out gas sampling according to claim 5, it is characterized in that, what in described aeration step, be filled with is dry gas, and this aeration step further comprises: close the second solenoid valve (304), open the first solenoid valve (301).
7. the method for utilizing vacuum line system to carry out gas sampling according to claim 5, it is characterized in that, what in described aeration step, be filled with is moisture, and this aeration step further comprises: close the first solenoid valve (301), open the second solenoid valve (304).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410349928.0A CN104075915B (en) | 2014-07-22 | 2014-07-22 | A kind of vacuum line system for gas sampling and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410349928.0A CN104075915B (en) | 2014-07-22 | 2014-07-22 | A kind of vacuum line system for gas sampling and method |
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| CN104075915A true CN104075915A (en) | 2014-10-01 |
| CN104075915B CN104075915B (en) | 2016-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641596A (en) * | 2017-09-28 | 2018-01-30 | 上海国强生化工程装备有限公司 | Multichannel automatic ration sterile sampling device and the bioreactor with the device |
| CN109500025A (en) * | 2018-10-16 | 2019-03-22 | 武汉聚合信环保科技有限公司 | Automatic tank cleaning instrument and sampling tank cleaning method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859527Y (en) * | 2005-09-16 | 2007-01-17 | 福建省福州电业局 | Automatic degassing sampling device for insulating oil chromatographic analysis |
| CN102410942A (en) * | 2011-07-25 | 2012-04-11 | 迈瑞尔实验设备（上海）有限公司 | Online sampling system |
| CN204008237U (en) * | 2014-07-22 | 2014-12-10 | 武汉市天虹仪表有限责任公司 | A kind of vacuum line system for gas sampling |
-
2014
- 2014-07-22 CN CN201410349928.0A patent/CN104075915B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2859527Y (en) * | 2005-09-16 | 2007-01-17 | 福建省福州电业局 | Automatic degassing sampling device for insulating oil chromatographic analysis |
| CN102410942A (en) * | 2011-07-25 | 2012-04-11 | 迈瑞尔实验设备（上海）有限公司 | Online sampling system |
| CN204008237U (en) * | 2014-07-22 | 2014-12-10 | 武汉市天虹仪表有限责任公司 | A kind of vacuum line system for gas sampling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641596A (en) * | 2017-09-28 | 2018-01-30 | 上海国强生化工程装备有限公司 | Multichannel automatic ration sterile sampling device and the bioreactor with the device |
| CN109500025A (en) * | 2018-10-16 | 2019-03-22 | 武汉聚合信环保科技有限公司 | Automatic tank cleaning instrument and sampling tank cleaning method |
| CN109500025B (en) * | 2018-10-16 | 2020-09-25 | 武汉聚合信环保科技有限公司 | Automatic tank cleaning instrument and sampling tank cleaning method |
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| CN104075915B (en) | 2016-07-06 |
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