CN205355001U - High atmospheric pressure mass spectrum buffering air inlet unit - Google Patents
High atmospheric pressure mass spectrum buffering air inlet unit Download PDFInfo
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- CN205355001U CN205355001U CN201521021051.9U CN201521021051U CN205355001U CN 205355001 U CN205355001 U CN 205355001U CN 201521021051 U CN201521021051 U CN 201521021051U CN 205355001 U CN205355001 U CN 205355001U
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- gas
- mass spectrum
- air inlet
- valve
- solenoid valve
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Abstract
The utility model discloses a high atmospheric pressure mass spectrum buffering air inlet unit, including decompression surge damping valve, solenoid valve, aspiration pump, gaseous buffering cavity. The one end of surge damping valve of wherein reducing pressure is connected with the air inlet, end (NO) is normally opened to the solenoid valve and the reduce pressure other end of surge damping valve and the air inlet of aspiration pump are connected respectively to normal close end (NC). Solenoid valve common port (COM) is connected with the air inlet of gaseous buffering cavity. The gas outlet of aspiration pump links to each other with the tail gas mouth. The opening and close all through the host computer software control of the NO of solenoid valve end, NC end and aspiration pump. The mass spectrum is introduced through advancing kind capillary to sample gas in the gaseous buffering cavity. At first opened the NC end and the aspiration pump of solenoid valve before letting in sample gas to gas buffering cavity through control software, the air that will cushion in the cavity is taken out, makes its inside maintain the vacuum state, later closes solenoid valve NC end and aspiration pump, then carries out detection and analysis to the internal sample gas that lets in of cushion chamber.
Description
Technical field
Present invention is mainly applied to hyperbar buffering mass spectrum sample introduction, utilize this device to make sample gas maintain a stable flow velocity by decompression venting valve in anticyclonic sample specifically exactly to be re-introduced into buffering cavity, introduce to mass spectrometer finally by sample introduction capillary tube.
Background technology
In detection technique, mass spectrum detection is paid close attention to widely because having best resolution and qualitative ability.Mass spectrum carrys out authenticating compound sample by ionizing, separate, detect ion, it is provided that abundant sample molecule structural information.In numerous analyzing detecting methods, Mass Spectrometry detection method is a kind of universal method being provided simultaneously with high sensitivity and high efficiency, but mass spectrum needs to run under vacuum, this result in mass spectrometer bulky, power consumption is high, the feature such as expensive.Requiring for its vacuum condition of high accuracy mass spectrum can be higher, thus causing that the volume of mass spectrum vacuum equipment is huger.
Along with the fast development of society is more and more urgent to small-sized mass spectrographic demand, get up with the mass spectrum new development in recent years that VUV lamp is ionization source, it to be mainly characterized by the fragment peak after parent ion is ionized few, mass spectrum is simply easy to identify.In order to reduce mass spectrographic health check-up, detect sample with the mass spectrum that VUV lamp is ionization source mainly by capillary tube direct injected, its simple in construction is especially very suitable to the detection of effumability sample.Then having no idea to be introduced directly in mass spectrographic ionization source for anticyclonic sample and be analyzed, hyperbar not only can affect the vacuum system of simple instrument, it is also possible to can other equipment be impacted, it is therefore desirable to find new method and analyze detection accordingly.
The present invention utilizes decompression venting valve by anticyclonic sample pressure-reduced and-regulated a to value set, and the NO end again through electromagnetic valve passes into buffering cavity, is analyzed to mass spectrum ionized region finally by the introducing of sample introduction capillary tube.This device has the following characteristics that
1. electromagnetic valve and opening of air pump are closed each through upper computer software control, it is achieved that the Automated condtrol to hardware device.First the air of the inside is discharged by buffering cavity evacuation before the experiments, it is to avoid experimental result is produced interference by foreign gas simultaneously.
2. this device can realize continuous sample introduction analysis simultaneously, experiment reproducible.
Utility model content
This utility model is stabilized it at an atmospheric pressure value set by decompression venting valve for high pressure sample gas, is re-introduced into afterwards to gas buffer cavity, passes into mass spectrum ionized region finally by sample introduction capillary tube and be analyzed, and the technical scheme of employing is as follows:
A kind of hyperbar mass spectrum is buffered into device of air: includes one as the airtight container of the hollow of gas buffer cavity and a three-way magnetic valve, is provided with a gas outlet being connected with mass spectrum injection port in container wall；It is provided with a gas access in container wall；One interface of three-way magnetic valve is connected with gas access, and an interface is connected with decompression venting valve, and an interface is connected with air pump；The other end of decompression venting valve is connected with high-pressure air source；The gas outlet of air pump is tail gas mouth.
Three-way magnetic valve is two electromagnetic valves of a threeway；The NO end of described electromagnetic valve and NC end connect the gas outlet of decompression venting valve and the air inlet of air pump respectively；The gas outlet of described air pump connects with mass spectrum tail gas mouth；Described electromagnetic valve COM end is connected with gas buffer cavity gas access.
Sample gas in described gas buffer cavity is introduced in mass spectrometer by sample introduction capillary tube.
Accompanying drawing explanation
Fig. 1 is buffered into device of air schematic diagram for a kind of hyperbar mass spectrum；(1) decompression venting valve, (2) electromagnetic valve, (3) air pump, (4) gas buffer cavity.
Detailed description of the invention
This device includes the decompression venting valve, electromagnetic valve, air pump and the gas buffer cavity that are from left to right arranged in order.The inlet end of decompression venting valve is connected with injection port, the NO end of electromagnetic valve and NC end connect the gas outlet of decompression venting valve and the air inlet of air pump respectively, the gas outlet of air pump is tail gas mouth, electromagnetic valve COM end is connected with gas buffer cavity injection port, and the sample gas in gas buffer cavity is introduced in mass spectrometer by sample introduction capillary tube.Experimentation is first turned on PC control software, presses and control the button that electromagnetic valve NC end and air pump are opened, the air in gas buffer cavity is extracted out and makes it keep certain vacuum, it is to avoid experimental result is produced interference.Click the button closing electromagnetic valve and air pump in control software design afterwards.Open sample air inlet, when inlet pressure is excessive, stream pressure can be reduced to the force value set before by decompression venting valve, and make sample flow rate remain stable for, it is in air-suction state when electromagnetic valve NO end connects with COM end, sample gas will be introduced into buffering cavity, is introduced the sample into mass spectrum by the sample introduction capillary tube being arranged in buffering cavity and is carrying out detection analysis.
A kind of hyperbar mass spectrum is buffered into decompression venting valve, electromagnetic valve, air pump and the gas buffer cavity that device of air includes from left to right being arranged in order.The inlet end of decompression venting valve is connected with injection port, and the NO end of electromagnetic valve and NC end connect the gas outlet of decompression venting valve and the air inlet of air pump respectively.The gas outlet of air pump is tail gas mouth, and electromagnetic valve COM end is connected with gas buffer cavity injection port, and the sample gas in gas buffer cavity is introduced in mass spectrometer by sample introduction capillary tube.Pressure-reduced and-regulated valve inlet pressure maintains in a setup pressure value, opening and closing by upper computer software control of electromagnetic valve NC end, is in air-suction state when electromagnetic valve NO end connects with COM end, is in out gaseity when electromagnetic valve NC end connects with COM end.The opening and closing of air pump and electromagnetic valve are linkages, also utilize upper computer software to be controlled.NC end and the air pump of electromagnetic valve it was first turned on before air inlet, being discharged by air in buffering cavity makes it internal for vacuum state, discharge the interference to experimental result of the foreign gas in buffering cavity, closing electromagnetic valve and air pump afterwards, such as sample gas in cushion chamber body, and by sample introduction capillary tube, sample gas is introduced to mass spectrometer.
Claims (3)
1. a hyperbar mass spectrum is buffered into device of air, it is characterised in that:
Including one as the airtight container of the hollow of gas buffer cavity (4) and a three-way magnetic valve (2), it is provided with a gas outlet being connected with mass spectrum injection port in container wall；It is provided with a gas access in container wall；One interface of three-way magnetic valve (2) is connected with gas access, and an interface is connected with decompression venting valve (1), and an interface is connected with air pump (3)；The other end of decompression venting valve (1) is connected with high-pressure air source；The gas outlet of air pump (3) is tail gas mouth.
2. device according to claim 1, it is characterised in that:
Three-way magnetic valve (2) is two electromagnetic valves of a threeway；The NO end of described electromagnetic valve (2) and NC end connect the gas outlet of decompression venting valve (1) and the air inlet of air pump (3) respectively；The gas outlet of described air pump (3) connects with mass spectrum tail gas mouth；Described electromagnetic valve (2) COM end is connected with gas buffer cavity (4) gas access.
3. device according to claim 1, it is characterised in that:
Sample gas in described gas buffer cavity (4) is introduced in mass spectrometer by sample introduction capillary tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521021051.9U CN205355001U (en) | 2015-12-10 | 2015-12-10 | High atmospheric pressure mass spectrum buffering air inlet unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521021051.9U CN205355001U (en) | 2015-12-10 | 2015-12-10 | High atmospheric pressure mass spectrum buffering air inlet unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205355001U true CN205355001U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521021051.9U Expired - Fee Related CN205355001U (en) | 2015-12-10 | 2015-12-10 | High atmospheric pressure mass spectrum buffering air inlet unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107633996A (en) * | 2017-08-28 | 2018-01-26 | 广西电网有限责任公司电力科学研究院 | Sulfur hexafluoride electrical equipment mesohigh gas miniature mass spectral analysis sampling system |
| CN108072722A (en) * | 2016-11-17 | 2018-05-25 | 中国科学院大连化学物理研究所 | A kind of Semiautomatic buffering hyperbar mass spectrum sample injection method |
| CN109752442A (en) * | 2018-12-06 | 2019-05-14 | 兰州空间技术物理研究所 | A kind of high pressure gas Trace Components detection device and method based on absorption enrichment principle |
| CN111239317A (en) * | 2020-03-11 | 2020-06-05 | 全椒南大光电材料有限公司 | Mass spectrum detection and analysis device and method for impurities in special gas |
| CN112986370A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院大连化学物理研究所 | Mass spectrum detection method for trace volatile components |
| CN117288829A (en) * | 2023-09-27 | 2023-12-26 | 武汉科益研创科技有限公司 | Gas generation detecting system |
-
2015
- 2015-12-10 CN CN201521021051.9U patent/CN205355001U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072722A (en) * | 2016-11-17 | 2018-05-25 | 中国科学院大连化学物理研究所 | A kind of Semiautomatic buffering hyperbar mass spectrum sample injection method |
| CN107633996A (en) * | 2017-08-28 | 2018-01-26 | 广西电网有限责任公司电力科学研究院 | Sulfur hexafluoride electrical equipment mesohigh gas miniature mass spectral analysis sampling system |
| CN107633996B (en) * | 2017-08-28 | 2024-03-08 | 广西电网有限责任公司电力科学研究院 | High-pressure gas miniature mass spectrometry analysis sampling system in sulfur hexafluoride electrical equipment |
| CN109752442A (en) * | 2018-12-06 | 2019-05-14 | 兰州空间技术物理研究所 | A kind of high pressure gas Trace Components detection device and method based on absorption enrichment principle |
| CN109752442B (en) * | 2018-12-06 | 2021-07-13 | 兰州空间技术物理研究所 | High-pressure gas trace component detection device and method based on adsorption enrichment principle |
| CN112986370A (en) * | 2019-12-13 | 2021-06-18 | 中国科学院大连化学物理研究所 | Mass spectrum detection method for trace volatile components |
| CN111239317A (en) * | 2020-03-11 | 2020-06-05 | 全椒南大光电材料有限公司 | Mass spectrum detection and analysis device and method for impurities in special gas |
| CN117288829A (en) * | 2023-09-27 | 2023-12-26 | 武汉科益研创科技有限公司 | Gas generation detecting system |
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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: 20160629 Termination date: 20181210 |