CN2499819Y - Preparing device for dynamic standard gas sample - Google Patents
Preparing device for dynamic standard gas sample Download PDFInfo
- Publication number
- CN2499819Y CN2499819Y CN 01260390 CN01260390U CN2499819Y CN 2499819 Y CN2499819 Y CN 2499819Y CN 01260390 CN01260390 CN 01260390 CN 01260390 U CN01260390 U CN 01260390U CN 2499819 Y CN2499819 Y CN 2499819Y
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- China
- Prior art keywords
- gas sample
- micro
- sample preparation
- evaporation mixer
- standard gas
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Abstract
The utility model relates to a dynamic reference gas sample preparation device, which comprises a diluted gas source preparing system and a vaporization mixture connected therewith, and further includes a micrometer syringe connected with the vaporization mixture and a microinjection pump connected with the micrometer syringe. Accordingly, the utility model can immediately prepare standard gas of various concentrations, and has the advantages of convenient operation and high practicability.
Description
Technical field:
The utility model relates to a kind of standard gas sample preparation facilities, particularly relates to a kind of dynamic standard gas sample preparation facilities.
Background technology:
General gas such as CH
4, CO
2, CO, O
2Deng calibrating gas because its concentration has relative stability in the quite long storage life, available pressure distribution method is made static criteria gas.Hydrazine class standard gas sample typically refers to the standard gas sample that uns-dimethylhydrazine (VDMH), methyl hydrazine (MHH), anhydrous hydrazine (HZ) mix with nitrogen.Its concentration range is: 0--100PPM.Mainly demarcate and the verification use for sensor indicator.The hydrazine class of unstable chemcial property then is difficult to obtain stable gas at rest, reason is that (1) hydrazine all is a reducing substances, oxidation reaction slowly can take place when contacting with oxygen, oxidisability is stronger under the gaseous state condition, according to the related data introduction: the attenuation rate when oxygen exists is 10 times of anaerobic, and reaction aggravation under the situation of water is being arranged.(2) metallic aluminium, iron, nickel, chromium, copper and oxide thereof are the catalyzer of hydrazine, are in contact with it catalytic oxidation can take place, and generate various products.(3) the gaseous state hydrazine also has self-catalysis, and it can carry out automatic oxidation reaction on chamber wall, and this is the hydrazine compound decay that is directed at owing to physisorption, infiltration.Because the instability of hydrazine class standard gas sample concentration so hydrazine class standard gas is preferably promptly joined i.e. usefulness, so just needs a kind of dynamic standard gas preparation facilities, to realize promptly joining the i.e. purpose of usefulness.The NO, the NO that have strong adsorbability simultaneously
2, NH
3, material such as HCN calibrating gas stability also very poor, need dynamic standard gas preparation facilities equally.
Summary of the invention:
The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, and a kind of dynamic standard gas preparation facilities that can allot various concentration standard gases immediately is provided.
For achieving the above object, the utility model dynamic standard gas sample preparation facilities comprises dilution source of the gas mixing system, and coupled evaporation mixer also comprises the micro syringe that links to each other with evaporation mixer, and with the continuous micro pump of micro syringe.The utility model dynamic standard gas sample preparation facilities with the difference of existing static criteria gas sample preparation facilities is: what micro syringe that the utility model links to each other with the evaporating gas-mixing chamber and micro pump had replaced existing static criteria gas sample preparation facilities is positioned at the indoor evaporation tube of evaporating gas-mixing.Can realize promptly joining promptly purpose so preferably with standard gas sample.
As optimization, described evaporation mixer connects the blank pipe that runs in again behind the flowmeter by switch, and described evaporation mixer also further connects sampling pipe by the flow micro actuator.Like this, more help accurately metering and accurately sampling.
As optimization, described micro pump comprises cylinder seat, described micro syringe comprises syringe and needle tubing, the cavity of described evaporation mixer is built-in with the eddy current ring that is covered with aperture, and the port at this cavity is equipped with disconnectable sealing film, and the needle tubing of micro syringe sees through the cavity UNICOM of sealing film with evaporation mixer.Like this, more help assembling, accurately be mixed and abundant mixing.
As optimization, described dilution source of the gas mixing system comprises that the band that links to each other successively with evaporation mixer divides the source of the gas divider of pipeline connector, well heater, flowmeter, flow micro actuator and the switch of band function of temperature control.Like this, divide pipeline connector help satisfying normal distribution, with nitrogen wash with detect the different needs of pressure regulation, guarantee suitable gas source temperature, the flow micro actuator can guarantee to dilute the smart amount of source of the gas dispensing, being provided with to be beneficial to of switch prevents sneaking into of air.
As optimization, described dilution source of the gas mixing system also comprises tensimeter, decompressor and gas source switch, the tensimeter that further connects with above-mentioned switch.So more help detecting and controlling source of the gas.
After adopting technique scheme, the utility model dynamic standard gas sample preparation facilities can be used for the instant preparation of various standard gas samples, is specially adapted to the hydrazine class of unstable chemcial property and NO, the NO with strong adsorbability
2, NH
3, calibrating gas such as HCN instant preparation.Be that example is made brief description to compound method with the hydrazine class now: at first suck a certain amount of hydrazine liquid by micro syringe, the emptying air is installed in it on micro pump and the evaporation mixer.Open source nitrogen again, show numerical value according to tensimeter, regulate decompressor, flow as required and flowmeter displayed value, regulate the flow micro actuator, make nitrogen flow reach setting value, nitrogen reaches design temperature by the well heater of band function of temperature control again, and the source of the gas divider that divides pipeline connector by band that source of the gas is assigned to evaporating gas-mixing is indoor.Start micro-injection pump, by setting flow hydrazine liquid is injected in the evaporation mixer continuously, the liquid hydrazine is sentenced the given pace steam raising at the needle point of micro syringe, and mixes with nitrogen.Discharge standard gas sample by flowmeter behind the combination gas spontaneous evaporation mixer mixing, unnecessary gas is discharged via the flow micro actuator.Gather calibrating gas, after the system that need treat moves a period of time gas sample concentration stabilize.Therefore, the utility model dynamic standard gas sample preparation facilities has and can allot various concentration standard gases, easy to use and practical advantage immediately.
Description of drawings:
Fig. 1 is the structural representation of the utility model dynamic standard gas sample preparation facilities;
Fig. 2 is the structural representation that contains flow micro actuator, evaporation mixer, micro syringe, micro pump part of the utility model dynamic standard gas sample preparation facilities.
Embodiment:
Be further described below in conjunction with accompanying drawing, the utility model dynamic standard gas sample preparation facilities comprises dilution source of the gas mixing system, coupled evaporation mixer 1 also comprises the micro syringe 3 that links to each other with evaporation mixer 1, and the micro pump 4 that links to each other with micro syringe 3.Described evaporation mixer 1 connects the blank pipe that runs in again behind the flowmeters 5 by switch 8, and described evaporation mixer 1 also further connects sampling pipe by flow micro actuator 6.Described micro pump 4 comprises cylinder seat, described micro syringe 3 comprises syringe and needle tubing, the cavity of described evaporation mixer 1 is built-in with the eddy current ring 2 that is covered with aperture, and the port at this cavity is equipped with disconnectable sealing film, and the needle tubing of micro syringe 3 sees through the cavity UNICOM of sealing film with evaporation mixer 1.Described dilution source of the gas mixing system comprises that the band that links to each other successively with evaporation mixer 1 divides the source of the gas divider 7 of pipeline connector, well heater 8, flowmeter 5, flow micro actuator 6 and the switch 8 of band function of temperature control.Described dilution source of the gas mixing system also comprises tensimeter 9, decompressor 10 and gas source switch 8, the tensimeter 9 that further connects with above-mentioned switch 8.
Claims (5)
1, a kind of dynamic standard gas sample preparation facilities, comprise dilution source of the gas mixing system, coupled evaporation mixer (1) is characterized in that also comprising the micro syringe (3) that same evaporation mixer (1) links to each other, and the micro pump (4) that links to each other of same micro syringe (3).
2, dynamic standard gas sample preparation facilities according to claim 1, it is characterized in that the blank pipe that runs in again after described evaporation mixer (1) is by switch (8) connection flowmeter (5), described evaporation mixer (1) also further connects sampling pipe by flow micro actuator (6).
3, dynamic standard gas sample preparation facilities according to claim 1 and 2, it is characterized in that described micro pump (4) comprises cylinder seat, described micro syringe (3) comprises syringe and needle tubing, the cavity of described evaporation mixer (1) is built-in with the eddy current ring (2) that is covered with aperture, and the port at this cavity is equipped with disconnectable sealing film, and the needle tubing of micro syringe (3) sees through the cavity UNICOM of the same evaporation mixer of sealing film (1).
4, dynamic standard gas sample preparation facilities according to claim 1 and 2 is characterized in that the band that described dilution source of the gas mixing system comprises that same evaporation mixer (1) links to each other successively divides the source of the gas divider (7) of pipeline connector, well heater (8), flowmeter (5), flow micro actuator (6) and the switch (8) of band function of temperature control.
5, dynamic standard gas sample preparation facilities according to claim 4 is characterized in that described dilution source of the gas mixing system also comprises tensimeter (9), decompressor (10) and gas source switch (8), the tensimeter (9) that further connects with above-mentioned switch (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260390 CN2499819Y (en) | 2001-09-18 | 2001-09-18 | Preparing device for dynamic standard gas sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260390 CN2499819Y (en) | 2001-09-18 | 2001-09-18 | Preparing device for dynamic standard gas sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2499819Y true CN2499819Y (en) | 2002-07-10 |
Family
ID=33668558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01260390 Expired - Fee Related CN2499819Y (en) | 2001-09-18 | 2001-09-18 | Preparing device for dynamic standard gas sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2499819Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565281A (en) * | 2010-12-17 | 2012-07-11 | 株式会社堀场Stec | Gas concentration controller system and method thereof |
| CN102692481A (en) * | 2012-06-13 | 2012-09-26 | 国电环境保护研究院 | Mercury scale gas generating device |
| CN101351704B (en) * | 2005-12-29 | 2012-10-03 | 微传感器系统股份有限公司 | System, apparatus and method for dispensing chemical vapor |
| CN102749421A (en) * | 2012-07-16 | 2012-10-24 | 北京雪迪龙科技股份有限公司 | Mercury standard gas generating device |
| CN103765186A (en) * | 2011-08-19 | 2014-04-30 | 拜耳知识产权有限责任公司 | Micro-sample-taking system for small amounts of fluid samples for analysis in the vapour phase |
| US9632489B2 (en) | 2011-09-23 | 2017-04-25 | Robert Bosch Gmbh | Autonomous working device for generating and working dynamic partial surfaces |
| CN111450718A (en) * | 2020-05-07 | 2020-07-28 | 山东非金属材料研究所 | Full-automatic preparation system and method for multi-component volatile organic compound gas |
-
2001
- 2001-09-18 CN CN 01260390 patent/CN2499819Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101351704B (en) * | 2005-12-29 | 2012-10-03 | 微传感器系统股份有限公司 | System, apparatus and method for dispensing chemical vapor |
| CN102565281A (en) * | 2010-12-17 | 2012-07-11 | 株式会社堀场Stec | Gas concentration controller system and method thereof |
| US9116526B2 (en) | 2010-12-17 | 2015-08-25 | Horiba Stec, Co., Ltd. | Gas concentration controller system |
| CN102565281B (en) * | 2010-12-17 | 2016-09-14 | 株式会社堀场Stec | Gas concentration regulating device and gas concentration control method |
| CN103765186A (en) * | 2011-08-19 | 2014-04-30 | 拜耳知识产权有限责任公司 | Micro-sample-taking system for small amounts of fluid samples for analysis in the vapour phase |
| US9632489B2 (en) | 2011-09-23 | 2017-04-25 | Robert Bosch Gmbh | Autonomous working device for generating and working dynamic partial surfaces |
| CN102692481A (en) * | 2012-06-13 | 2012-09-26 | 国电环境保护研究院 | Mercury scale gas generating device |
| CN102692481B (en) * | 2012-06-13 | 2014-10-22 | 国电环境保护研究院 | Mercury scale gas generating device |
| CN102749421A (en) * | 2012-07-16 | 2012-10-24 | 北京雪迪龙科技股份有限公司 | Mercury standard gas generating device |
| CN102749421B (en) * | 2012-07-16 | 2015-01-21 | 北京雪迪龙科技股份有限公司 | Mercury standard gas generating device |
| CN111450718A (en) * | 2020-05-07 | 2020-07-28 | 山东非金属材料研究所 | Full-automatic preparation system and method for multi-component volatile organic compound gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |