CN204638028U - A kind of gas mixer - Google Patents

A kind of gas mixer Download PDF

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Publication number
CN204638028U
CN204638028U CN201520225997.0U CN201520225997U CN204638028U CN 204638028 U CN204638028 U CN 204638028U CN 201520225997 U CN201520225997 U CN 201520225997U CN 204638028 U CN204638028 U CN 204638028U
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CN
China
Prior art keywords
gas
introducing port
distribution grid
export mouth
gas mixer
Prior art date
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
Application number
CN201520225997.0U
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Chinese (zh)
Inventor
余欢
戴亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Information Science and Technology
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Nanjing University of Information Science and Technology
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Priority to CN201520225997.0U priority Critical patent/CN204638028U/en
Application granted granted Critical
Publication of CN204638028U publication Critical patent/CN204638028U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of gas mixer.Described blender is integral type pipeline configuration, pipeline one end is export mouth, the other end arranges at least two introducing ports, introducing port place arranges glass piston, between introducing port and export mouth, tube cavity inside sets gradually two or more gas distribution grid, forms gas mixing chamber between two between gas distribution grid.This device effectively can solve the not high problem of mixing efficiency, gives vent to anger stable, and not by the impact of target gas molecules amount.

Description

A kind of gas mixer
Technical field
The present invention relates to gas mixer technical field, be specifically related to a kind of gas mixer.
Technical background
For increasingly serious environment situation, increasing experts and scholars begin one's study the formation of new particle in air, and this comprises the Forming Mechanism of new particle, forms the precursor substance of new particle.At flow duct-PSM-CIMS experimental provision, observe organic gas from the particle of 1 nm particle diameter, participated in new karyogenesis.In experimentation, we need other gas inject flow duct of ppbv to pptv concentration level, and the organic gas that current organic gas generator produces does not reach this rank, and the organic gas of a concentration known is carried out dilution mixture with regard to needing us by this.
In existing hybrid technology, generally take large volume blender, it is low that the mixing efficiency of this blender compares, and the incorporation time of needs is longer, and larger by the molecular weight effects of organic gas molecule.Gas for low concentration is difficult to mix in large volume blender more, easily causes the problems such as instability of giving vent to anger.
Summary of the invention
The object of the present invention is to provide a kind of gas mixer, for the gas mixer used in nowadays experiment, carry out improvements and substitute, described blender can fast, uniform mist.
Realizing technical scheme of the present invention is:
A kind of gas mixer, described blender is integral type pipeline configuration, pipeline one end is export mouth, the other end arranges at least two introducing ports, introducing port place arranges glass piston, between introducing port and export mouth, tube cavity inside sets gradually two or more gas distribution grid, forms gas mixing chamber between two between gas distribution grid.
Further, described export mouth, introducing port are closed-entry structure.Namely blender sectional area is greater than export mouth, introducing port sectional area; When gas enters internal mixer from closed-entry introducing port, the pressure of gaseous mixture reduces instantaneously, and two kinds of gases can be made to mix more equably.
Further, described introducing port number is two, and set-up mode is 90 ° of settings, and namely the axis of two mouths of pipe is vertical.Also can be arranged side by side or be crisscross arranged.
Further, described gas distribution grid adopts the porous plate that aperture is less than 10 microns.Gas distribution grid is similar to porous plate and surperficial punctulate plate, utilizes distribution grid that gas can be made to reach the state of turbulent flow, adds the mass transfer diffusion coefficient of atmospheric.
Compared with prior art, its remarkable advantage is utility model:
(1) integral structure placement easy to use, institute takes up space less.
(2) described gas mixer inside arranges gas distribution grid, can be regarded as multiple shrinkage cavity, comparatively large at shrinkage cavity position gas pressure velocity ratio, and mixability is more even, and compared to use taper shrinkage cavity, the higher mixing of efficiency of distribution grid is faster.
(3) this device can arrange and be no less than two introducing ports, and the sectional area due to introducing port is less than the sectional area of hybrid chamber, after gas enters hybrid chamber, pressure reduces instantaneously, and flow velocity is accelerated, and just has certain mixed function during air inlet.
(4) this device effectively can solve the not high problem of mixing efficiency, gives vent to anger stable, and not by the impact of target gas molecules amount.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the utility model gas mixer.
Detailed description of the invention
In order to understand the utility model better, illustrate technical scheme of the present invention below by specific embodiment.
Embodiment 1
A kind of gas mixer, as shown in Figure 1, described blender is integral type pipeline configuration, pipeline one end is export mouth 1, the other end arranges two introducing ports (the first introducing port 2, second introducing port 3), set-up mode is 90 ° of settings, and namely the axis of the first introducing port 2, second introducing port 3 two mouths of pipe is vertical.Described export mouth, introducing port are closed-entry structure, introducing port place arranges glass piston 4, between introducing port and export mouth, tube cavity inside sets gradually two gas distribution grids 5, the porous plate that described gas distribution grid adopts aperture to be less than 10 microns, forms gas mixing chamber 6 between two between gas distribution grid.
In use, first open the glass piston at introducing port place, the gas of mixing is inputted by introducing port, and the gas of input collects in tube cavity inside, and comparatively large owing to collecting overpressure, flow velocity is fast, and gas has a process be pre-mixed.Then through first piece of distribution grid, be equivalent to through multiple shrinkage cavity, the turbulent extent of gas strengthens, and mixes more even.Then gas enters hybrid chamber, and because the sectional area of hybrid chamber is comparatively large, mist reduces pressure suddenly, has the process of a rapid mixing.Again through second piece of distribution grid, there is the effect of a secondary mixing.Finally gas is exported by delivery line and enter laboratory apparatus.
Embodiment 2
A kind of gas mixer, described blender is integral type pipeline configuration, and pipeline one end is export mouth 1, and the other end arranges two introducing ports (the first introducing port 2, second introducing port 3), set-up mode for be arrangeding in parallel, i.e. the axis parallel of the first introducing port 2, second introducing port 3 two mouths of pipe.Described export mouth, introducing port are closed-entry structure, introducing port place arranges glass piston 4, between introducing port and export mouth, tube cavity inside sets gradually three gas distribution grids 5, the porous plate that described gas distribution grid adopts aperture to be less than 10 microns, forms gas mixing chamber 6 between two between gas distribution grid.
If do not have gas distribution grid, its mixed process just has a simply mixing at inlet end, if blender is comparatively large, its mixed effect is poor, and reason is that unexpected gas expansion flow velocity reduces, and gas is in the state of advection.After adding distribution grid, hybrid chamber can be divided into some parts, distribution grid has the process of the gas that rebounds, and the churning of gas is strengthened, and distribution grid being equivalent to multiple shrinkage cavity, adding the moment flow velocity of atmospheric, is that gas is in turbulence state.Mixed effect improves.If do not have distribution grid, its coefficient of molecular diffusion is about 9*10 -8kmol/ (m 2s), also have the impact of eddy current mass tranfer coefficient and gas turbulence after adding gas distribution grid, make gas diffusion profile Quick uniform more.

Claims (4)

1. a gas mixer, it is characterized in that: described blender is integral type pipeline configuration, pipeline one end is export mouth, the other end arranges at least two introducing ports, introducing port place arranges glass piston, between introducing port and export mouth, tube cavity inside sets gradually two or more gas distribution grid, forms gas mixing chamber between two between gas distribution grid.
2. gas mixer according to claim 1, is characterized in that: export mouth, introducing port are closed-entry structure.
3. gas mixer according to claim 1, is characterized in that: introducing port number is two, and set-up mode is 90 ° of settings, and namely the axis of two mouths of pipe is vertical.
4. gas mixer according to claim 1, is characterized in that: the porous plate that gas distribution grid adopts aperture to be less than 10 microns.
CN201520225997.0U 2015-04-15 2015-04-15 A kind of gas mixer Expired - Fee Related CN204638028U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520225997.0U CN204638028U (en) 2015-04-15 2015-04-15 A kind of gas mixer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520225997.0U CN204638028U (en) 2015-04-15 2015-04-15 A kind of gas mixer

Publications (1)

Publication Number Publication Date
CN204638028U true CN204638028U (en) 2015-09-16

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Family Applications (1)

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CN201520225997.0U Expired - Fee Related CN204638028U (en) 2015-04-15 2015-04-15 A kind of gas mixer

Country Status (1)

Country Link
CN (1) CN204638028U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351749A (en) * 2015-12-09 2016-02-24 无锡拓能自动化科技有限公司 Gas filling pipe applied to gas filling station
CN105536587A (en) * 2015-12-25 2016-05-04 南京信息工程大学 Standard gas dynamic mixing instrument
WO2019080029A1 (en) * 2017-10-26 2019-05-02 盐城文治机械有限公司 Quick and uniform gas mixer
CN111054229A (en) * 2019-01-28 2020-04-24 河北寰球工程有限公司 Ventilation air methane and low-concentration gas static mixer with suction function
CN112795905A (en) * 2020-12-25 2021-05-14 北京北方华创微电子装备有限公司 Gas inlet structure and semiconductor deposition equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105351749A (en) * 2015-12-09 2016-02-24 无锡拓能自动化科技有限公司 Gas filling pipe applied to gas filling station
CN105536587A (en) * 2015-12-25 2016-05-04 南京信息工程大学 Standard gas dynamic mixing instrument
WO2019080029A1 (en) * 2017-10-26 2019-05-02 盐城文治机械有限公司 Quick and uniform gas mixer
CN111054229A (en) * 2019-01-28 2020-04-24 河北寰球工程有限公司 Ventilation air methane and low-concentration gas static mixer with suction function
CN112795905A (en) * 2020-12-25 2021-05-14 北京北方华创微电子装备有限公司 Gas inlet structure and semiconductor deposition equipment

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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: 20150916

Termination date: 20170415