CN102091544A - Gas allocation device - Google Patents
Gas allocation device Download PDFInfo
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- CN102091544A CN102091544A CN2010105969009A CN201010596900A CN102091544A CN 102091544 A CN102091544 A CN 102091544A CN 2010105969009 A CN2010105969009 A CN 2010105969009A CN 201010596900 A CN201010596900 A CN 201010596900A CN 102091544 A CN102091544 A CN 102091544A
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Abstract
The invention relates to a gas allocation device. The device is characterized by comprising a plurality of gas transmission pipelines, a mixer, a sealed experiment space, a distributor and a computer; each gas transmission pipeline comprises at least one pressure reducer and a flow controller, and the plurality of gas transmission pipelines are used for carrying different gases respectively; the gas outlet end of each gas transmission pipeline is connected with the gas inlet end of the mixer, the gas outlet end of the mixer is connected with the distributor through a pipe and a control valve, and the distributor is arranged in the sealed experiment space; and a plurality of sensors for detecting different gases in the sealed experiment space respectively are also arranged in the sealed experiment space; and the computer is connected with all the flow controller and the sensors. The device can be used for mixing, allocation and real-time monitoring of multiple gases, and can furthest improve the uniformity and accuracy of gas component control so that the gas components in the sealed experiment space are more accurate, real and reliable.
Description
Technical field
The present invention relates to a kind of gas preparing device, particularly about a kind of mixing, the allotment of multicomponent gas and gas preparing device of monitoring in real time of being used for.
Background technology
At present, most gas preparing technology all is to finish in the lab space of sealing, and all gases directly adds in the lab space of sealing, and the allotment of under continuous give-and-take conditions, carrying out, size by continuous adjusting all gases amount, reach needed gas ingredients, thereby satisfy experimental requirements.But for the experiment body space of a sealing, under the condition that does not have the gas exchange, provide the amount of all gases composition accurately, it is very difficult reaching requirement of experiment.By calculating the amount of its supply, in the interpolation process,, make system's judgement occur departing from such as certain gas ingredients owing to the detection of system and all multifactor influences such as hysteresis quality of each sensor.As regulating once more, then can occur influencing interior other gas contents of lab space of sealing and the variation repeatedly of air pressure, can not guarantee experimental requirements.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of mixing, the allotment of multicomponent gas and gas preparing device of monitoring in real time of being used for.
For achieving the above object, the present invention takes following technical scheme: a kind of gas preparing device is characterized in that: it comprises several air delivering pipeline, a blender, a sealing experiment space, a distributor and a computer; The described air delivering pipeline in every road comprises at least one pressure reducer and a flow controller, and the described air delivering pipeline of several is used for being written into different gas respectively; The outlet side of the described air delivering pipeline in every road is connected with the inlet end of described blender respectively, and the outlet side of described blender is connected described distributor by pipeline with a by-pass valve control, and described distributor is arranged in the described sealing experiment space; Described sealing experiment also is provided with plurality of sensors in the space, is used for respectively the gas with various in the described sealing experiment space is detected; That described computer connects all described flow controllers and sensor.
Described sealing experiment space inner top is provided with a blower fan.
The present invention is owing to take above technical scheme, it has the following advantages: 1, every kind of air delivering pipeline of the present invention all disposes independently flow controller, can control the content of a certain gas ingredients separately, also can control the content of several gas ingredients simultaneously, realize freely switching of multiple simulated environment gas ingredients, reach the purpose that each simulated test is concentrated, efficiently moved.2, the present invention at first mixes by the lab space that blender seals the outer first time, and all gases is mixed in blender as much as possible; Multiple spot by distributor distributes and is diffused into each corner in it then; At last, start the blower fan that is arranged at the sealing experiment top of space, make its interior air carry out forced convertion, quicken of the diffusion of all gases molecule in inner each space, improve the uniformity and the precision of gas ingredients control to greatest extent, thereby make its gas inside composition more accurate, truer, more reliable.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is an operation principle flow chart of the present invention
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, the present invention includes five road air delivering pipelines 1 (, being not limited to this), a blender 2, a sealing experiment space 3, a distributor 4 and a computer 5 only as example.Every road air delivering pipeline 1 comprises that at least one pressure reducer 11 and flow controller 12, five road air delivering pipelines 1 are used for being written into N respectively
2, NO
2, CO, CO
2And SO
2Five kinds of gases.The outlet side of five road air delivering pipelines 1 is connected with the inlet end of blender 2 respectively, the outlet side of blender 2 is connected distributor 4 by pipeline with a by-pass valve control 6, distributor 4 is arranged in the sealing experiment space 3, its effect is to be evenly distributed on each aspect in sealing experiment space 3 mixing the allotment gas size according to quantity of coming out, so that the diffusion of allotment gas, the even speed of the gas ingredients in quickening sealing experiment space 3.Also be provided with five sensors 7 in the sealing experiment space 3, be used for respectively five kinds in the sealing experiment space 3 allotment gases are detected.Computer 5 connect all flow controllers 12 with sensor 7.
In the foregoing description, because sealing experiment space 3 is spaces of a relative closure, air ambient carries out freely spreading of gas molecule in the sealing experiment space 3 if only rely on, and will have long, the not high shortcoming of allotment gas mixture homogeneity diffusion time.Therefore, can one blower fan (not shown) be set at sealing experiment space 3 inner tops, make sealing experiment space 3 interior air carry out forced convertion, quicken the diffusion of all gases molecule in sealing experiment space 3, improve the uniformity and the precision of the control of allotment gas to greatest extent, thereby make the result of simulated experiment more accurate, truer, more reliable.
As shown in Figure 2, operation principle of the present invention is:
1) computer 5 calculates every kind of required allotment amount of gas and mixed proportion, co-current flow amount controller 12 input signals respectively according to the allotment composition of requirement of experiment.
2) respectively allocate gas through pressure reducer 11 decompression after, enter flow controller 12, flow controller 12 is adjusted aperture according to the input signal of computer 5, and exports gas according to given flow in blender 2.
3) after multicomponent gas tentatively mixes in blender 2 in proportion, send into distributor 4 in the sealing experiment space 3 with identical pressure, multiple spot by distributor 4 distributes and is diffused into each corner in the sealing experiment space 3, and utilize the blower fan in the sealing experiment space 3 fully to mix, to obtain best mixed effect.
4) simultaneously, the allotment gaseous state in the 7 pairs of sealing experiment spaces of all gases sensor 3 that are equipped with in the sealing experiment space 3 is monitored in real time, and feeds back to computer 5.Computer 5 is revised according to allotment gaseous state in the sealing experiment space 3 in good time, and composition of air satisfies requirement of experiment in sealing experiment space 3.
The present invention only describes with the foregoing description; the structure of each parts, the position is set and connects and all can change to some extent; on the basis of technical solution of the present invention; all improvement and equivalents of individual component being carried out according to the principle of the invention all should not got rid of outside protection scope of the present invention.
Claims (2)
1. gas preparing device, it is characterized in that: it comprises several air delivering pipeline, a blender, a sealing experiment space, a distributor and a computer; The described air delivering pipeline in every road comprises at least one pressure reducer and a flow controller, and the described air delivering pipeline of several is used for being written into different gas respectively; The outlet side of the described air delivering pipeline in every road is connected with the inlet end of described blender respectively, and the outlet side of described blender is connected described distributor by pipeline with a by-pass valve control, and described distributor is arranged in the described sealing experiment space; Described sealing experiment also is provided with plurality of sensors in the space, is used for respectively the gas with various in the described sealing experiment space is detected; That described computer connects all described flow controllers and sensor.
2. a kind of gas preparing device as claimed in claim 1 is characterized in that: described sealing experiment space inner top is provided with a blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105969009A CN102091544A (en) | 2010-12-09 | 2010-12-09 | Gas allocation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105969009A CN102091544A (en) | 2010-12-09 | 2010-12-09 | Gas allocation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102091544A true CN102091544A (en) | 2011-06-15 |
Family
ID=44124920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105969009A Pending CN102091544A (en) | 2010-12-09 | 2010-12-09 | Gas allocation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102091544A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568335A (en) * | 2014-12-18 | 2015-04-29 | 四川安东油气工程技术服务有限公司 | Helium and nitrogen mixing device for high pressure gas leak detection |
| CN104748968A (en) * | 2015-04-01 | 2015-07-01 | 西北工业大学 | Polluting experiment gas adding device |
| CN104777002A (en) * | 2015-03-19 | 2015-07-15 | 西北工业大学 | Methane combustion heating experimental system for combustion chamber of scramjet engine |
| CN105974053A (en) * | 2015-10-29 | 2016-09-28 | 兵器工业卫生研究所 | Armoured vehicle cabin harmful gas simulation experiment system |
| CN106064026A (en) * | 2016-07-26 | 2016-11-02 | 液化空气（中国）研发有限公司 | Multicomponent gas mixing system |
| CN109550416A (en) * | 2018-12-15 | 2019-04-02 | 力合科技（湖南）股份有限公司 | Dynamic air-distributing and feeder |
| CN111249932A (en) * | 2020-02-15 | 2020-06-09 | 北京知天地环境科技有限公司 | Gas dynamic dilution and distribution method and device |
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| US6333272B1 (en) * | 2000-10-06 | 2001-12-25 | Lam Research Corporation | Gas distribution apparatus for semiconductor processing |
| CN201143422Y (en) * | 2007-12-25 | 2008-11-05 | 上海工业自动化仪表研究所 | Ternary double-mixed process air distributing device |
| CN101579605A (en) * | 2008-09-02 | 2009-11-18 | 深圳市美的连电子科技有限公司 | Gas mixing proportioning equipment and gas mixing proportioning method |
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| US6333272B1 (en) * | 2000-10-06 | 2001-12-25 | Lam Research Corporation | Gas distribution apparatus for semiconductor processing |
| CN201143422Y (en) * | 2007-12-25 | 2008-11-05 | 上海工业自动化仪表研究所 | Ternary double-mixed process air distributing device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568335A (en) * | 2014-12-18 | 2015-04-29 | 四川安东油气工程技术服务有限公司 | Helium and nitrogen mixing device for high pressure gas leak detection |
| CN104777002A (en) * | 2015-03-19 | 2015-07-15 | 西北工业大学 | Methane combustion heating experimental system for combustion chamber of scramjet engine |
| CN104748968A (en) * | 2015-04-01 | 2015-07-01 | 西北工业大学 | Polluting experiment gas adding device |
| CN105974053A (en) * | 2015-10-29 | 2016-09-28 | 兵器工业卫生研究所 | Armoured vehicle cabin harmful gas simulation experiment system |
| CN106064026A (en) * | 2016-07-26 | 2016-11-02 | 液化空气（中国）研发有限公司 | Multicomponent gas mixing system |
| CN109550416A (en) * | 2018-12-15 | 2019-04-02 | 力合科技（湖南）股份有限公司 | Dynamic air-distributing and feeder |
| CN111249932A (en) * | 2020-02-15 | 2020-06-09 | 北京知天地环境科技有限公司 | Gas dynamic dilution and distribution method and device |
| CN111249932B (en) * | 2020-02-15 | 2020-11-13 | 北京知天地环境科技有限公司 | Gas dynamic dilution and distribution method and device |
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Application publication date: 20110615 |