CN208537472U - A mass spectrometry online water-gas separation device - Google Patents
A mass spectrometry online water-gas separation device Download PDFInfo
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- CN208537472U CN208537472U CN201821009588.7U CN201821009588U CN208537472U CN 208537472 U CN208537472 U CN 208537472U CN 201821009588 U CN201821009588 U CN 201821009588U CN 208537472 U CN208537472 U CN 208537472U
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Abstract
本实用新型属于水体监测术领域，具体涉及一种质谱在线水气分离装置。一种质谱在线水气分离装置，是由水体进样模块、水气分离模块及质谱保护模块三部分构成；所述的水体进样模块与水气分离模块连接；水气分离模块与质谱保护模块连接；质谱保护模块由不锈钢球、密封圈、弹簧及不锈钢管组成；不锈钢管的一端连接水气分离模块，另一端连接质谱仪；不锈钢球设置在不锈钢管内，其质谱端通过弹簧固定于不锈钢管内壁，不锈钢管靠近质谱端设有密封圈。本实用新型的质谱水气分离装置，主要适用于水体中气体在线监测，在质谱仪真空负压下实现在线水气分离，通过质谱保护模块后进入质谱仪实现在线监测。本实用新型的质谱水气分离装置适用于地表水及海水的在线水气预处理。
The utility model belongs to the field of water body monitoring technology, in particular to a mass spectrometry online water gas separation device. A mass spectrometry online water gas separation device is composed of three parts: a water body sampling module, a water gas separation module and a mass spectrometry protection module; the water body sampling module is connected with the water gas separation module; the water gas separation module and the mass spectrometry protection module are connected. Connection; the mass spectrometer protection module is composed of a stainless steel ball, a sealing ring, a spring and a stainless steel tube; one end of the stainless steel tube is connected to the water-gas separation module, and the other end is connected to the mass spectrometer; the stainless steel ball is set in the stainless steel tube, and its mass spectrometer end is fixed in the stainless steel tube by a spring The stainless steel tube is provided with a sealing ring near the end of the mass spectrometer. The mass spectrometry water-gas separation device of the utility model is mainly suitable for on-line monitoring of gas in water body, realizes on-line water-gas separation under the vacuum negative pressure of the mass spectrometer, and enters the mass spectrometer to realize on-line monitoring after passing through the mass spectrometer protection module. The mass spectrometry water-gas separation device of the utility model is suitable for on-line water-gas pretreatment of surface water and seawater.
Description
Technical field
The utility model belongs to aquatic monitoring art field, and in particular to a kind of online moisture separator of mass spectrum is suitable for
Gas on-line preconcentration monitors in water body.
Background technique
Gas content is the important indicator measured with evaluating water quality in water body.Such as: pass through the gas in detection surface water
Content may determine that organic contamination degree.It is also required to monitor in the fields such as oceanographic survey, resource exploration, mariculture industry solvable
Gas content, it is evaluation ocean circulation, marine resources, marine organisms important parameter.Gas content is supervised online in water body at present
One of optimal analysis instrument is surveyed as mass spectrograph in situ, wherein the online separator of aqueous vapor is essential.It is common at present
Duplicature or monofilm as moisture separator.But no matter any sample introduction separator, for mass spectrum vacuum system
Protection it is particularly important.
There are some defects in existing moisture separator structure, are not directed to the safeguard measure of mass spectrum vacuum system,
Once ventilated membrane ruptures, mass spectrometric vacuum system will be damaged.
Utility model content
Technical problem to be solved in the utility model is to provide one kind for the deficiencies in the prior art and be suitable for
The online separation of aqueous vapor had both may be implemented in mass spectrometric online moisture separator, the device, while can protect mass spectrometric true
Empty set system, reduces external interference.
The utility model solve its technical problem the technical solution adopted is that: a kind of online moisture separator of mass spectrum is
It is made of water body sample introduction module, aqueous vapor separation module and mass spectrum protective module three parts；The water body sample introduction module and aqueous vapor
Separation module connection；Aqueous vapor separation module is connect with mass spectrum protective module；Mass spectrum protective module is by stainless steel ball, sealing ring, bullet
Spring and stainless steel tube composition；One end of stainless steel tube connects aqueous vapor separation module, and the other end connects mass spectrograph；Stainless steel ball setting
In stainless steel tube, stainless steel inside pipe wall is fixed on by spring in mass spectrum end, and stainless steel tube is equipped with sealing ring close to mass spectrum end.
The aqueous vapor separation module includes aqueous vapor seperation film and stainless steel air permeable plate, and stainless steel air permeable plate is positioned at aqueous vapor point
Lower section from film plays a supportive role to aqueous vapor seperation film.
The aqueous vapor separation module includes separation and concentration film and stainless steel air permeable plate, and it is rich that stainless steel air permeable plate is located at separation
The lower section for collecting film, plays a supportive role to separation and concentration film.
The aperture of the stainless steel air permeable plate is 60-80um.
The water body sample introduction module is made of peristaltic pump and pump line, the aqueous vapor seperation film of pump line and aqueous vapor separation module
Connection.
The mass spectrum moisture separator of the utility model is primarily adapted for use in gas in water body and monitors on-line, true in mass spectrograph
Online aqueous vapor separation is realized in idling pressure, realizes on-line monitoring by entering mass spectrograph after mass spectrum protective module.The utility model
Mass spectrum moisture separator be suitable for the online aqueous vapor pretreatment of surface water and seawater.
Detailed description of the invention
Fig. 1, the utility model based on the online moisture separator section plan of monofilm mass spectrum；
Fig. 2, the utility model based on the online moisture separator section plan of duplicature mass spectrum；
Wherein: 1, water body；2, peristaltic pump pump line；3, peristaltic pump；4, aqueous vapor seperation film；5, the first stainless steel air permeable plate；6,
Air permeable plate supporting table；7, stainless steel ball；8, sealing ring；9, spring；10, under test gas；11, stainless steel tube；12, gas separation is rich
Collect film；13, the second stainless steel air permeable plate；14, shunt gas.
Specific embodiment
Come to the online moisture separator of the mass spectrum of the utility model below by specific embodiment and in conjunction with attached drawing into one
Step illustrates, but is not limited to the utility model design of the utility model.
Embodiment 1
Fig. 1 is based on the online moisture separator section plan of monofilm mass spectrum for one kind of the utility model, including outer
Water body sample introduction module, aqueous vapor separation module and mass spectrum protective module three parts are set, external water body sample introduction module is by 3 He of peristaltic pump
Peristaltic pump pump line 2 forms.Aqueous vapor separation module is made of aqueous vapor seperation film 4, the first stainless steel air permeable plate 5；Aqueous vapor seperation film 4
For the silicone resin film of thickness 0.05mm, the online separation of the multiple gases such as CO2, O2, N2, CH4 in water body may be implemented.First
Stainless steel air permeable plate 5 is located at 4 lower section of aqueous vapor seperation film, plays a supportive role to aqueous vapor seperation film 4, the first stainless steel air permeable plate 5 is thick
Degree is 2.0mm, aperture 60-80um.Mass spectrum protective module is by stainless steel ball 7, sealing ring 8, spring 9 and 11 groups of stainless steel tube
At.The first stainless steel air permeable plate 5 in one end connection aqueous vapor separation module of stainless steel tube 11, the other end connect mass spectrograph；The
One stainless steel air permeable plate 5 is arranged by air permeable plate supporting table 6 in stainless steel tube front end.Stainless steel ball 7 is arranged in stainless steel tube 11
Interior, 11 inner wall of stainless steel tube is fixed on by spring 9 in the mass spectrum end of stainless steel ball 7, and stainless steel tube 11 is equipped with close close to mass spectrum end
Seal 8.7 diameter of stainless steel ball is 5mm, and 11 diameter of stainless steel tube is 6mm.Stainless steel ball 7 and sealing ring 8 are apart from for 10mm, bullet
The coefficient of elasticity k of spring 9 is 10N/m < k < 1000N/m.
Water body 1 at the uniform velocity passes through aqueous vapor splitting die in peristaltic pump pump line 2 under the driving of peristaltic pump 3 with 10mL/min speed
Block, the isolated gas of aqueous vapor seperation film 4 enter mass spectrograph by mass spectrum protective module and are detected.In normal operation,
Under test gas 10 enters via the gap between stainless steel ball 7 and 11 tube wall of stainless steel tube and sealing ring 8 in mass spectrum protective module
Mass spectrograph, since stainless steel ball 7 is in equilibrium system, the spring 9 of fixed stainless steel ball 7 is in free extension state.Once
Aqueous vapor seperation film 4 ruptures, 7 inner and outer air pressure disequilibrium of stainless steel ball, under the action of negative pressure rapid compressed spring 9, stainless steel ball 7
It is pressed on sealing ring 8, to seal mass spectrograph injection port.
Embodiment 2
In mass spectral analysis, it usually needs isolated gas is enriched with or is separated, duplicature point is generallyd use
From.Fig. 2 is that one kind of the utility model is based on the online moisture separator section plan of duplicature mass spectrum, including external water body
Sample introduction module, aqueous vapor separation module and mass spectrum protective module three parts, external water body sample introduction module are by peristaltic pump 3 and peristaltic pump
Pump line 2 forms.Difference with embodiment one is that aqueous vapor separation module is by aqueous vapor seperation film 4, the first stainless steel air permeable plate 5, divides
It is constituted from enrichment film 12 and the second stainless steel air permeable plate 13；Aqueous vapor seperation film 4 is the silicone resin film of thickness 0.05mm, be may be implemented
The online separation of the multiple gases such as CO2, O2, N2, CH4 in water body.First stainless steel ventilated membrane 5 is located under aqueous vapor seperation film 4
Face plays a supportive role to aqueous vapor seperation film 4, and the first stainless steel air permeable plate 5 is thickness 2.0mm, aperture 60-80um.Separation
Gas a part is detected by stainless steel tube 11 into mass spectrograph through separation and concentration film 12, and another part shunt gas 14 passes through
Aspiration pump is taken away.Second stainless steel air permeable plate 13 is located at separation and concentration film 12 and makees in the following, playing support to aqueous vapor separation and concentration film 12
With.Separation and concentration film 12 is the PDMS membrane of thickness 0.05mm, realizes the enrichment to organic gas.Mass spectrum is protected
Shield module is made of stainless steel ball 7, sealing ring 8, spring 9 and stainless steel tube 11.One end connection aqueous vapor point of stainless steel tube 11
From the first stainless steel air permeable plate 5 in module, the other end connects mass spectrograph；First stainless steel air permeable plate 5 is supported by air permeable plate
Platform 6 is arranged in stainless steel tube front end.Stainless steel ball 7 is arranged in stainless steel tube 11, and the mass spectrum end of stainless steel ball 7 passes through spring 9
It is fixed on 11 inner wall of stainless steel tube, stainless steel tube 11 is equipped with sealing ring 8 close to mass spectrum end.7 diameter of stainless steel ball is 5mm, stainless
11 diameter of steel pipe is 6mm.Stainless steel ball 7 is 10N/m < k < apart from the coefficient of elasticity k for 10mm, spring 9 with sealing ring 8
1000N/m。
Water body 1 at the uniform velocity passes through aqueous vapor splitting die in peristaltic pump pump line 2 under the driving of peristaltic pump 3 with 10mL/min speed
Block, the isolated gas of aqueous vapor seperation film 4 enter mass spectrograph by mass spectrum protective module and are detected.In normal operation,
Under test gas 10 enters via the gap between stainless steel ball 7 and 11 tube wall of stainless steel tube and sealing ring 8 in mass spectrum protective module
Mass spectrograph, since stainless steel ball 7 is in equilibrium system, the spring 9 of fixed stainless steel ball 7 is in free extension state.Once
Aqueous vapor seperation film 4 ruptures, 7 inner and outer air pressure disequilibrium of stainless steel ball, under the action of negative pressure rapid compressed spring 9, stainless steel ball 7
It is pressed on sealing ring 8, to seal mass spectrograph injection port.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821009588.7U CN208537472U (en) | 2018-06-28 | 2018-06-28 | A mass spectrometry online water-gas separation device |
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| CN201821009588.7U CN208537472U (en) | 2018-06-28 | 2018-06-28 | A mass spectrometry online water-gas separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693242A (en) * | 2018-06-28 | 2018-10-23 | 山东省科学院海洋仪器仪表研究所 | A kind of online moisture separator of mass spectrum |
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2018
- 2018-06-28 CN CN201821009588.7U patent/CN208537472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108693242A (en) * | 2018-06-28 | 2018-10-23 | 山东省科学院海洋仪器仪表研究所 | A kind of online moisture separator of mass spectrum |
| CN108693242B (en) * | 2018-06-28 | 2024-06-11 | 山东省科学院海洋仪器仪表研究所 | Online water-gas separation device of mass spectrum |
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