CN104764632A - Non-contact type full-automatic gas sample retention device - Google Patents
Non-contact type full-automatic gas sample retention device Download PDFInfo
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- CN104764632A CN104764632A CN201510191720.5A CN201510191720A CN104764632A CN 104764632 A CN104764632 A CN 104764632A CN 201510191720 A CN201510191720 A CN 201510191720A CN 104764632 A CN104764632 A CN 104764632A
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Abstract
The invention discloses a non-contact type full-automatic gas sample retention device. The non-contact type full-automatic gas sample retention device comprises a sampling pipe which is sequentially provided with a sample gas valve, an evacuation flowmeter and an air pumping pump, wherein a plurality of gas bags are connected to the sampling pipe between the sample gas valve and the evacuation flowmeter via sample gas branch pipes, and a communicating valve is arranged on each sample gas branch pipe; the non-contact type full-automatic gas sample retention device further comprises an air pipeline which is sequentially provided with an air valve, a sampling flowmeter and a sampling gas pump, a plurality of vacuum boxes which are in one-to-one correspondence with the gas bags are connected to the air pipeline between the air valve and the sampling flowmeter via evacuation branch pipes, each gas bag is hermetically arranged in the corresponding vacuum box, and a bleeder valve is arranged on each evacuation branch pipe; and the non-contact type full-automatic gas sample retention device further comprises a controller which is electrically connected with the various flowmeters, the valves and the gas pumps. The device can be used for not only realizing automatic precise sample retention of gas, improving the production efficiency and saving the labor cost, but also isolating artificial contact by the design of the non-contact type gas bags, facilitating the installation of a gas heating device and simultaneously improving the production safety; and furthermore, the device can ensure that gas has no pollution and no loss during the whole process.
Description
Technical field
the present invention relates to a kind of contactless Full-automatic gas to keep sample device.
Background technology
it is an important link in gas generation and testing process that gas keeps sample, for below standard gas (the teflon gas that such as company produces at present, there is chemical stability, non-viscosity, lubricity and electrical insulating property, resistance to ag(e)ing and radiation resistance plurality of advantages, be typically used as inner lining material, it needs to carry out detection up to standard before dispatching from the factory), all to extract and be stored in one and even multiple airbag in order to follow-up calibrating, analysis and verification.
the way of current routine all relies on and manually keeps sample, not only waste time and energy, enterprise is made to bear no small cost of labor, and for the gaseous sample that exceeds standard, workman is difficult to control when should keep sample, and leaves and takes how many amounts, probably can miss the representational sample gas of most or not leave and take the gas flow reached needed for calibrating, to later research, verification is made troubles.And existing Artificial gas keeps sample because workman directly contacts with airbag in process, misoperation very easily causes pollution and the loss of the gas that keeps sample, and causes the inaccurate of follow-up calibrating and analysis result, does not reach due object.
important a bit in addition, for a class gas of easily absorption bonding, it needs whole process heating in conveying and the process that keeps sample, therefore require to prepare special firing equipment, process comparatively bothers, and not only considerably increases workman's burden, too increases the production cost of enterprise.And workman easily causes unnecessary security incident in the process that keeps sample favorite outer contacting heated air or airbag.
Summary of the invention
the present invention seeks to: provide a kind of contactless Full-automatic gas to keep sample device, automatically accurately keeping sample of gas can not only be realized, enhance productivity greatly and save cost of labor, and airbag adopts contactless design to contact with the direct of workman with isolated, production security is improved while being convenient to install gas-heating apparatus additional, and gas whole process is pollution-free, lossless in process of guaranteeing to keep sample.
technical scheme of the present invention is: a kind of contactless Full-automatic gas keeps sample device, it is characterized in that comprising sampling pipe, it is provided with successively sample air valve, find time flowmeter and air pump of finding time, and described sample air valve and the sampling pipe of finding time between flowmeter are provided with airbag bonding pad, it is connected with some airbags by sample gas branch pipe, and every root sample gas branch pipe is equipped with communicating valve; Also comprise air pipe line, described air pipe line is provided with successively air valve, sample streams gauge and sampling air pump, and air pipe line between air valve and sample streams gauge is provided with vacuum tank bonding pad, it is connected with some and aforementioned airbag vacuum tank one to one by arm of finding time, described each airbag all seals to be located in corresponding vacuum tank, and every root finds time arm is equipped with extraction valve; Also comprise controller, described sample air valve, flowmeter of finding time, air pump of finding time, each communicating valve, air valve, sample streams gauge, sampling air pump and each extraction valve are all electrically connected with described controller.
further, the present invention also comprises the vacuum tank electric heater unit for heating vacuum tank internal gas, and this vacuum tank electric heater unit is also electrically connected with controller.Certain the present invention is not construed as limiting for the form of vacuum tank electric heater unit, and it can adopt the heating arrangement of any one maturation in known technology, such as resistive heating device or electric heating pipe type heating arrangement etc.
more preferred, the heating-up temperature interval of described vacuum tank electric heater unit is 0 ~ 120 DEG C.
further, the present invention also comprises the sampling pipe electric heater unit for heating sampling pipe internal gas, and this sampling pipe electric heater unit is also electrically connected with controller.Certain the present invention is not construed as limiting for the form of sampling pipe electric heater unit, and it can adopt the heating arrangement of any one maturation in known technology, such as resistive heating device or electric heating pipe type heating arrangement etc.
more preferred, described sampling pipe inside is provided with low absorbability liner.The liner adopting low absorbability to make is this area routine techniques, is mainly used in preventing gas adheres on sampling pipe inwall.
further, airbag described in the present invention is low absorbability airbag.The airbag adopting low absorbability to make is this area routine techniques, is mainly used in preventing gas adheres on airbag inwall.
further, the bonding pad of airbag described in the present invention and the sampling pipe of finding time between flowmeter are provided with sampling anti-drip valve, and the air pipe line between vacuum tank bonding pad and sample streams gauge is provided with Vacuum Balance valve, described sampling anti-drip valve and Vacuum Balance valve are also all electrically connected with controller.
further, the present invention also comprises the warning device be electrically connected with controller, if detect that sample gas does not have flow for a long time, MCU will provide signal and drive warning device to give the alarm.And can be known any type of audible alarm unit as the form of warning device, or the acoustic-optic alarm of light emission alarm device or both combinations.
further, air pump of sampling described in the present invention is membrane pump with air pump of finding time, and described communicating valve, extraction valve, sample air valve, air valve, sampling anti-drip valve and Vacuum Balance valve are solenoid valve.
further, controller described in the present invention is PC or MCU.
real work flow process of the present invention is as follows:
initial: apparatus system resets or more after ventilation bag, MCU controls unlatching and to find time air pump and whole communicating valve, and the gas (residual gas of last action link or waste gas) of finding time in whole airbag, enters normal operating conditions;
normal operating conditions:
1) sampling pipe cleaning: MCU detects the signal that keeps sample, opens sample air valve, starts air pump of finding time, draws sample gas cleaning sampling pipe, and after sample gas reaches program predetermined time or flow, sampling pipe cleaning is complete, closes find time air pump and sample air valve;
2) airbag cleaning: MCU sends control signal and opens sample air valve, Vacuum Balance valve and start sampling air pump, and open wherein one group of communicating valve and extraction valve (usually deciding the opening sequence of communicating valve and extraction valve group along sampling pipe gas flow), in vacuum tank, the gas of predetermined (such as 300ml) is quantitatively extracted by sample streams gauge, suck the sample gas of equivalent in corresponding airbag, close sampling air pump, communicating valve, extraction valve, Vacuum Balance valve and sample air valve immediately; Start air pump of finding time, and again open the communicating valve (extraction valve opened air valve simultaneously and just closed of just closing, with Equilibrium vacuum case internal gas pressure), in described airbag, the gas of the predetermined (such as 300ml) just injected quantitatively is extracted by flowmeter of finding time, then close find time air pump and communicating valve, air valve and extraction valve, complete an airbag cleaning process;
above-mentioned steps 2 according to actual needs) can repeatedly perform repeatedly;
3) gas keeps sample: open sample air valve, Vacuum Balance valve and start sampling air pump, and open step 2) in completed the communicating valve corresponding to airbag and the extraction valve of cleaning, in vacuum tank, the sample gas (user can set the sizes values of x according to airbag capacity) of x ml is quantitatively extracted by sample streams gauge, vacuum tank internal gas pressure declines, suck the sample gas xml of equivalent in airbag thereupon, then close sampling air pump and corresponding communicating valve, extraction valve, Vacuum Balance valve and sample air valve, complete and once keep sample; It is noted that gas keeps sample in process and will guarantee that sampling anti-drip valve is closed, prevent sample gas from running away in the air pump of finding time of sampling pipe end.
4) keep sample when next time signal arrival, MCU control be switched to next airbag and with it correspondence communicating valve and extraction valve, and repeated execution of steps 1 successively) sampling pipe cleaning, step 2) airbag cleaning and the gas of step 3) to keep sample overall process, by that analogy, the present invention can replace the operation that keeps sample manually completing multiple airbag.If detect that sample gas does not have flow for a long time, MCU will provide signal and drive warning device to give the alarm.
and in whole gas sampling process, MCU all can send signal and drive the electric heater unit in vacuum tank and sampling pipe to implement heating to sample gas, prevents a class special gas bonding.
it may be noted that the above-mentioned gas of the present invention step that keeps sample sets by MCU and controls to perform, and the program setting of MCU and and flowmeter and each pump, connection control technology between valve be routine techniques, the present invention is not described further this.
advantage of the present invention is:
1. this contactless Full-automatic gas provided by the invention keeps sample instrument, can replace artificial realize full-automatic gas and keeping sample operation, enhance productivity greatly, save cost of labor, and the error existed in manual operation can be eliminated, guarantee that gas keeps sample omnidistance pollution-free, lossless in process, improve the accuracy that the calibrating of subsequent gases sample is analyzed.
2. this contactless Full-automatic gas provided by the invention keeps sample instrument, because its airbag is designed to noncontact form (vacuum tank is set up in outside), completely cut off airbag in operating process directly to contact with workman, and be convenient in prioritization scheme, install gas-heating apparatus additional to tackle the high special gas of adhesiveness, substantially increase applicability and the production security of instrument, and gas whole process is pollution-free, lossless in the process that contributes to further guaranteeing keeping sample.
3. this contactless Full-automatic gas provided by the invention keeps sample instrument, and it repeatedly can clean airbag before gas keeps sample, and guarantees the purity that gas keeps sample, and eliminates the interference of residual gas, the accuracy improving the calibrating of subsequent gases sample further and analyze.
4. this contactless Full-automatic gas provided by the invention keeps sample instrument, the overall connection design adopting pump, valve and pipeline, and structure is simple, closure good, and not by external interference, also without the need to manual intervention, automaticity is high, and good operating stability.
5. this contactless Full-automatic gas provided by the invention keeps sample instrument, is designed with warning device, can detect sample gas long-time without the prerequisite of flow under give the alarm, greatly improve production security.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is structural representation of the present invention.
wherein: 1, communicating valve; 2, extraction valve; 3, airbag; 4, vacuum tank; 5, sample air valve; 6, air valve; 7, sampling pipe; 8, air pipe line; 9, to find time flowmeter; 10, sample streams gauge; 11, sampling air pump; 12, to find time air pump; 13, controller; 14, sample gas branch pipe; 15, to find time arm; 16, sampling anti-drip valve; 17, Vacuum Balance valve.
Embodiment
embodiment: combine and Figure 1 shows that the contactless Full-automatic gas of the present invention keeps sample a kind of embodiment of device, it has the sampling pipe 7 and air pipe line 8 that are arranged in parallel, wherein:
described sampling pipe 7 is provided with sample air valve 5 successively, find time flowmeter 9 and air pump 12 of finding time, and described sample air valve 5 and the sampling pipe 7 of finding time between flowmeter 9 are provided with airbag bonding pad, it is connected with some airbags 3 by sample gas branch pipe 14, and every root sample gas branch pipe 14 is equipped with communicating valve 1.And described air pipe line 8 is provided with successively air valve 6, sample streams gauge 10 and sampling air pump 11, and air pipe line 8 between air valve 6 and sample streams gauge 10 is provided with vacuum tank bonding pad, it is connected with some and aforementioned airbag 3 vacuum tank 4 one to one by arm 15 of finding time, described each airbag 3 all seals to be located in corresponding vacuum tank 4, and every root finds time arm 15 is equipped with extraction valve 2.The bonding pad of airbag described in the present embodiment and the sampling pipe 7 of finding time between flowmeter 9 are also provided with sampling anti-drip valve 16, and air pipe line 8 between vacuum tank bonding pad and sample streams gauge 10 is also provided with Vacuum Balance valve 17.
controller 13 is also provided with in the present embodiment, this controller 13 adopts MCU, described sample air valve 5, flowmeter 9 of finding time, air pump 12 of finding time, each communicating valve 1, air valve 6, sample streams gauge 10, sampling air pump 11 and each extraction valve 2, and sampling anti-drip valve 16 and Vacuum Balance valve 17 are all electrically connected with described controller 13.And be also provided with the warning device (not shown in FIG.) be electrically connected with described controller 13 in the present embodiment, warning device is specially hummer.
the inside of vacuum tank 4 described in the present embodiment is provided with vacuum tank electric heater unit (not shown), and for heating vacuum tank internal gas, and this vacuum tank electric heater unit is also electrically connected with controller 13.The heating-up temperature interval of described vacuum tank electric heater unit is 0 ~ 120 DEG C.In the present embodiment, the concrete form of vacuum tank electric heater unit is the electric heating tube be placed in vacuum tank.
the inside of sampling pipe 7 described in the present embodiment is provided with sampling pipe electric heater unit (not shown), and for heating sampling pipe 7 internal gas, and this sampling pipe electric heater unit is also electrically connected with controller 13.In the present embodiment, the concrete form of sampling pipe electric heater unit is the electric heating inner bladder be placed in sampling pipe.
described in the present embodiment, sampling pipe 7 inside is provided with low absorbability liner simultaneously, is made up, prevents gas adheres on tube wall of low absorbability material.And described airbag 3 is low absorbability airbag, prevent gas adheres on airbag inwall.
air pump 11 of sampling described in the present embodiment is membrane pump with air pump 12 of finding time, and described communicating valve 1, extraction valve 2, sample air valve 5, air valve 6, sampling anti-drip valve 16 and Vacuum Balance valve 17 are solenoid valve.
the real work flow process of the present embodiment is as follows:
initial: apparatus system resets or more after ventilation bag, MCU controls unlatching and to find time air pump 12 and whole communicating valve 1, and the gas (residual gas of last action link or waste gas) of finding time in whole airbag 3, enters normal operating conditions;
normal operating conditions:
1) sampling pipe cleaning: MCU detects the signal that keeps sample, opens sample air valve 5, starts air pump 12 of finding time, draws sample gas cleaning sampling pipe 7, after sample gas reaches program predetermined time or flow, sampling pipe 7 cleans complete, closes find time air pump 12 and sample air valve 5;
2) airbag cleaning: MCU sends control signal and opens sample air valve 5, Vacuum Balance valve 17 and start sampling air pump 11, and open wherein one group of communicating valve 1 and extraction valve 2(decide the opening sequence of communicating valve 1 and extraction valve 2 groups usually along sampling pipe 7 gas flow), in vacuum tank 4, the gas of predetermined (such as 300ml) is quantitatively extracted by sample streams gauge 10, suck the sample gas of equivalent in corresponding airbag 3, close sampling air pump 11, communicating valve 1, extraction valve 2, Vacuum Balance valve 17 and sample air valve 5 immediately; Start air pump 12 of finding time, and the extraction valve 2 that the communicating valve 1(again opening just closedown opens air valve 6 simultaneously and just closed, with Equilibrium vacuum case 4 internal gas pressure), the gas of the predetermined (such as 300ml) quantitatively just injected from extraction in described airbag 3 by flowmeter 9 of finding time, then close find time air pump 12 and communicating valve 1, air valve 6 and extraction valve 2, complete airbag 3 cleaning process;
above-mentioned steps 2 according to actual needs) can repeatedly perform repeatedly;
3) gas keeps sample: open sample air valve 5, Vacuum Balance valve 17 and start sampling air pump 11, and open step 2) in completed the communicating valve 1 corresponding to airbag 3 and the extraction valve 2 of cleaning, in vacuum tank 4, the sample gas (user can set the sizes values of x according to airbag 3 capacity) of x ml is quantitatively extracted by sample streams gauge 10, vacuum tank 4 internal gas pressure declines, suck the sample gas xml of equivalent in airbag 3 thereupon, then close sampling air pump 11 and corresponding communicating valve 1, extraction valve 2, Vacuum Balance valve 17 and sample air valve 5, complete and once keep sample; It is noted that gas keeps sample in process and will guarantee that sampling anti-drip valve 16 is closed, prevent sample gas from sampling pipe 7 end find time run away in air pump 12.
4) keep sample when next time signal arrival, MCU control be switched to next airbag 3 and with it correspondence communicating valve 1 and extraction valve 2, and repeated execution of steps 1 successively) sampling pipe cleaning, step 2) airbag cleaning and the gas of step 3) to keep sample overall process, by that analogy, the present invention can replace the operation that keeps sample manually completing multiple airbag 3.If detect that sample gas does not have flow for a long time, MCU will provide signal and drive warning device to give the alarm.
and in whole gas sampling process, MCU all can send signal and drive the electric heater unit in vacuum tank and sampling pipe to implement heating to sample gas, prevents a class special gas bonding.
it may be noted that the above-mentioned gas of the present embodiment step that keeps sample sets by MCU and controls to perform, and the program setting of MCU and and flowmeter and each pump, connection control technology between valve be routine techniques, the present embodiment is not described further this.
certain above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All modifications done according to the Spirit Essence of main technical schemes of the present invention, all should be encompassed within protection scope of the present invention.
Claims (10)
1. a contactless Full-automatic gas keeps sample device, it is characterized in that comprising sampling pipe (7), it is provided with successively sample air valve (5), flowmeter of finding time (9) and air pump of finding time (12), and the sampling pipe (7) between described sample air valve (5) and flowmeter of finding time (9) is provided with airbag bonding pad, it is connected with some airbags (3) by sample gas branch pipe (14), and every root sample gas branch pipe (14) is equipped with communicating valve (1); Also comprise air pipe line (8), described air pipe line (8) is provided with successively air valve (6), sample streams gauge (10) and sampling air pump (11), and air pipe line (8) between air valve (6) and sample streams gauge (10) is provided with vacuum tank bonding pad, it is connected with some and aforementioned airbag (3) vacuum tank (4) one to one by arm of finding time (15), described each airbag (3) all seals to be located in corresponding vacuum tank (4), and every root finds time arm (15) is equipped with extraction valve (2); Also comprise controller (13), described sample air valve (5), flowmeter of finding time (9), air pump of finding time (12), each communicating valve (1), air valve (6), sample streams gauge (10), sampling air pump (11) and each extraction valve (2) are all electrically connected with described controller (13).
2. contactless Full-automatic gas according to claim 1 keeps sample device, characterized by further comprising the vacuum tank electric heater unit for heating vacuum tank (4) internal gas, and this vacuum tank electric heater unit is also electrically connected with controller (13).
3. contactless Full-automatic gas according to claim 2 keeps sample device, it is characterized in that the heating-up temperature interval of described vacuum tank electric heater unit is 0 ~ 120 DEG C.
4. contactless Full-automatic gas according to claim 1 keeps sample device, characterized by further comprising the sampling pipe electric heater unit for heating sampling pipe (7) internal gas, and this sampling pipe electric heater unit is also electrically connected with controller (13).
5. contactless Full-automatic gas according to claim 4 keeps sample device, it is characterized in that described sampling pipe (7) inside is provided with low absorbability liner.
6. contactless Full-automatic gas according to claim 1 keeps sample device, it is characterized in that described airbag (3) is for low absorbability airbag.
7. contactless Full-automatic gas according to claim 1 keeps sample device, it is characterized in that the sampling pipe (7) between described airbag bonding pad and flowmeter of finding time (9) is provided with sampling anti-drip valve (16), and the air pipe line (8) between vacuum tank bonding pad and sample streams gauge (10) is provided with Vacuum Balance valve (17), described sampling anti-drip valve (16) and Vacuum Balance valve (17) are also all electrically connected with controller (13).
8. contactless Full-automatic gas according to claim 1 keeps sample device, characterized by further comprising the warning device be electrically connected with controller (13).
9. contactless Full-automatic gas according to claim 7 keeps sample device, it is characterized in that described sampling air pump (11) and air pump of finding time (12) are membrane pump, and described communicating valve (1), extraction valve (2), sample air valve (5), air valve (6), sampling anti-drip valve (16) and Vacuum Balance valve (17) are solenoid valve.
10. the contactless Full-automatic gas according to claim 1 or 2 or 4 or 7 or 8 keeps sample device, it is characterized in that described controller (13) is PC or MCU.
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| CN201510191720.5A CN104764632B (en) | 2015-04-22 | 2015-04-22 | Contactless Full-automatic gas keeps sample device |
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| CN201510191720.5A CN104764632B (en) | 2015-04-22 | 2015-04-22 | Contactless Full-automatic gas keeps sample device |
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| CN105510538A (en) * | 2015-12-31 | 2016-04-20 | 聚光科技(杭州)股份有限公司 | Remote quality control device and method of gas monitoring system |
| CN106442031A (en) * | 2016-10-13 | 2017-02-22 | 北京市环境保护监测中心 | Automatic sampling device for malodorous gas |
| CN108801716A (en) * | 2018-05-23 | 2018-11-13 | 上海北裕分析仪器股份有限公司 | A kind of gas producing device and method of acquisition parallel gas |
| CN110095325A (en) * | 2019-05-28 | 2019-08-06 | 山东瑞泽检测评价技术服务有限公司 | A kind of miniature small traffic timing gas sampler of airbag |
| CN110926875A (en) * | 2019-11-29 | 2020-03-27 | 辽宁工程技术大学 | Coal mine goaf bundle pipe gas collecting and storing device and using method thereof |
| CN112798360A (en) * | 2021-02-04 | 2021-05-14 | 王冀 | Sampler for vacuum gas container |
| US11371914B2 (en) | 2019-09-11 | 2022-06-28 | Saudi Arabian Oil Company | Automated hydrogen sulfide sampler |
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| CN110926875A (en) * | 2019-11-29 | 2020-03-27 | 辽宁工程技术大学 | Coal mine goaf bundle pipe gas collecting and storing device and using method thereof |
| CN112798360A (en) * | 2021-02-04 | 2021-05-14 | 王冀 | Sampler for vacuum gas container |
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| CN104764632B (en) | 2017-10-03 |
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