CN101811006A - Standard gas distributing instrument - Google Patents
Standard gas distributing instrument Download PDFInfo
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- CN101811006A CN101811006A CN201010176846.2A CN201010176846A CN101811006A CN 101811006 A CN101811006 A CN 101811006A CN 201010176846 A CN201010176846 A CN 201010176846A CN 101811006 A CN101811006 A CN 101811006A
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- gas
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- mass flow
- flow controller
- generator assembly
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Abstract
The invention discloses a standard gas distributing instrument which comprises at least two gas inlet rapid plugs, mass flow controllers and a gas mixing pipeline, wherein the gas inlet rapid plugs are used as standard gas input passages, each mass flow controller is communicated with each gas inlet rapid plug, the gas mixing pipeline is communicated with output end of each mass flow controller, the output end of the gas mixing pipeline is communicated with a sample gas output path end, a compressed air generator assembly branch is connected between one gas inlet rapid plug and the mass flow controller communicated the gas inlet generator assembly, and the compressed air generator assembly branch comprises a miniature air pump, an air storage tank and a pressure sensor, wherein the air storage tank is connected with the air outlet of the miniature air pump, the pressure sensor is used for monitoring the inside pressure of the air storage tank in real time, and the compressed air generator assembly branch is controlled to be conducted by an electromagnetic valve. The invention can realize the rapid switching of high-concentration standard gas and diluent gas varieties at any time and can accurately control the gas flow capacity of any input passage to obtain the standard gas distributing instrument with the required accurate dilution proportion.
Description
Technical field
The present invention relates to a kind of distributing instrument, be specifically related to a kind of standard gas distributing instrument.
Background technology
Calibrating gas is one of the most widely used standard substance in the gage work, is widely used in industries such as iron and steel, oil, chemical industry, medical treatment, semiconductor, electric power, metal processing.Along with the precise treatment of all kinds of instrument and meters in the industrial production, the requirement of calibrating gas is also improved constantly, be mainly reflected on the continuity of precision and concentration.At present ordering of calibrating gas is that requirement according to the user is prepared at specified point in the metering industry, but contrasts for the linear multi evaluation of instrument and the linearity in a certain range ability, and single standard gas is just powerless.Simultaneously, many instrument and meters need field-checking, and it is also very inconvenient that a large amount of calibrating gas are carried into the scene.
With the power industry is example, SF
6Gas is widely used in the electrical equipment with its excellent insulating properties and arc extinction performance.Use SF
6Gas comprises breaker, isolating switch, earthed switch, transformer, bus etc. as the fully-enclosed combined electric equipment of dielectric.SF is installed
6One is more airtight for the interior space of high-tension apparatus, leaks in case gas takes place, because circulation of air is slow, the toxicity analyte is difficult for discharging, thereby the staff who enters the switch gear room is produced great danger, even suffocate in indoor deposition.SF
6The leakiness of gas can pass through SF
6Gas leakage alarm instrument is measured.
In equipment running process, since electric arc, corona, spark discharge and factor affecting such as shelf depreciation, high temperature, SF
6Gas and insulating materials issue biochemical reaction in heat, electric effect, will produce sulfide (SO
2, H
2S, SOF
2Deng); Fluoride (HF, CF
4Deng); Carbide (CO, CO
2Deng) multiple material.These catabolites will reduce SF
6The insulating properties of gas, and these catabolites can use specific gas analysis instrument to detect, with the inner fault state that takes place of judgment device.
For guaranteeing SF
6The safe and reliable operation of high-tension apparatus will be to SF
6Insulating gas carries out reasonably supervision and check regularly, simultaneously its in-situs tester device is also needed every year and carries out calibrate.Common SF
6Gas leakage alarm instrument is installed in the low level district (on the ground) of power distribution equipment, and not quick detachable, so its calibration operation in use will carry out at the scene.SF
6Gas leakage alarm and SF
6The calibration of the gas analysis instrument that gas purity, analyte detect is finished according to the calibrating gas of multiple variable concentrations, and it is very inconvenient that a large amount of calibrating gas are carried into the scene.This just requires a kind ofly can produce the low concentration calibrating gas of different condition demand and air distributing device easy to carry, with its demarcation benchmark as field-checking all gases detecting instrument.
A kind of standard gas distributing device is disclosed among the ZL00211457.7, comprise unstripped gas input pipe, air input pipe, gas-distribution pipe, definite value pressure reducer, Pressure gauge and valve etc., wherein the unstripped gas input pipe connects the distribution conduit by definite value pressure reducer, raw material efferent duct, unstripped gas valve; The definite value pressure reducer is respectively by the unstripped gas high-voltage tube, and low-voltage tube connects raw gas pressure table and precision pressure gauge; Two air input pipes are set, and two air input pipes are connected the distribution conduit by air door respectively with tube connector, and wherein an air input pipe connects air source Pressure gauge; The distribution conduit connects gas-distribution pipe and connects drain tap and blast pipe by tube connector.This device is preparing calibrating gas and simple in structure accurately.
But above-mentioned air distributing device can not be realized switching fast at any time of high concentration calibrating gas or diluent gas type, and the control to gas flow is to control by pressure, can't realize the accurate control of arbitrary input channel gas flow, be required the calibrating gas of dilution ratio to obtain.
Summary of the invention
In view of this, in order to overcome the defective of existing standard gas distribution equipment, the invention provides a kind of switching fast at any time that can realize high concentration calibrating gas and diluent gas type, and can accurately control arbitrary input channel gas flow, required the standard gas distributing instrument of accurate dilution ratio to obtain.
A kind of standard gas distributing instrument provided by the invention, comprise at least two air inlet quick plugs as the calibrating gas input channel, mass flow controller that respectively is connected with each air inlet quick plug and the gas mixing tube road that all is connected with each mass flow controller output, described gas mixing tube road output is connected with sample gas output channel end, be connected to compressed air generator assembly branch road between one of them air inlet quick plug and the mass flow controller that is connected, described compressed air generator assembly branch road comprises mini air pump, the pressure sensor of air accumulator that links to each other with the mini air pump gas outlet and real-time monitoring air accumulator internal pressure, described compressed air generator assembly props up the conducting of route solenoid control.
Distribution principle of the present invention is the mass flow mixing method, in order to a kind of distributing instrument that the calibrating gas of high concentration is become low concentration sample gas through mixed diluting to be provided.By the air inlet quick plug as the realization of the input channel success of every kind of calibrating gas switching fast at any time of high concentration calibrating gas or diluent gas type, operation is very easy, and the accurately arbitrary input channel gas flow of control of mass flow controller is housed, thereby obtain the calibrating gas of the accurate dilution ratio that requires on each input channel.
Further, described gas mixing tube road output is connected with sample gas output channel end, shunting emptying path terminal respectively, and described sample gas output channel end and shunting emptying path terminal all are equipped with needle-valve.
Along with the different selection of dilution ratio, mixed gas gross also can change.Regulate the needle-valve of sample gas output channel end and shunting emptying path terminal, can make sample gas output flow keep needed steady state value.
Further, described air inlet quick plug is 2-4.
The calibrating gas of one or more high concentrations is mixed in different ratios with diluent gas, produce the low concentration calibrating gas of different condition demand, and, provide a great convenience and possibility to execute-in-place with this demarcation benchmark as field-checking all gases detecting instrument.
The gas flow that flows through can be regulated and measure to several groups of high-precision mass flow controllers automatically, according to the requirement of dilution ratio, can select the different mass flow controller of range respectively, and it is big that the range on one diluent gas passage is wanted.
Further, described sample gas output channel brings out mouth the dedicated line interface that connects gas chromatograph is housed.
Standard gas distributing instrument of the present invention is because there is intrinsic measuring accuracy error in mass flow controller itself, so need higher grade of service precision gas chromatograph that it is proofreaied and correct.The dedicated line interface that connects gas chromatograph can directly be communicated to output sample gas the thief hatch of gas chromatograph, carries out the multiple spot control experiment in the ratio range that allows, and by linear fit equation update the system deviation, improves the distribution precision.
Further, be connected to compressed air generator assembly branch road between described one of them air inlet quick plug and the mass flow controller that is connected, described compressed air generator assembly props up the conducting of route solenoid control, and described compressed air generator assembly comprises mini air pump, the air accumulator that links to each other with the mini air pump gas outlet and the pressure sensor of monitoring the air accumulator internal pressure in real time.
The compressed air generator assembly has increased a kind of selection of diluent gas.When carrier gas is air, replace tank of compressed air, not only reduce cost but also avoid carrying inconvenience with the compressed air generator assembly.The mini air pump gas outlet is connected to air accumulator, and monitors the internal pressure of air accumulator in real time with pressure sensor, and the running status of regulation and control air pump is to guarantee the stationarity of gas pressure.
Further, described air accumulator outlet side installation air cleaning drier.
In the air accumulator rear end air cleaning drier is installed, is prevented the pollution of air plankton mass flow controller.
Further, described mini air pump, mass flow controller and solenoid electric valve are by manual control or programmable logic controller (PLC) program control operation.
Beneficial effect of the present invention is: 1. the present invention adopts the calibrating gas input channel of four quick plug forms, add a compressed air channel of controlling conducting or blocking by solenoid electric valve, flexible, the combining form of multiple dilution mix proportion scheme is provided.Can select any one road in first three calibrating gas passage to insert N
2, O
2, SO
2, H
2S, CO, H
2Etc. multiple pure gas or high concentration calibrating gas, the 4th gas passage inserts the high-purity diluent gas, and requirement is an identical type with the carrier gas of front calibrating gas, so just can export any low concentration aggregate sample gas of one-component.In order to demarcation benchmark as the individual event precision index of verification all gases analyzer.
Need not to be equipped with the chamber gas of multiple gases component, multiple concentration echelon.Greatly reduce numerous and diverse property of use cost and operation, saved the working time.
2. the present invention has designed the manual control model of each calibrating gas passage.Under special circumstances, air pump, solenoid electric valve and mass flow controller all can manually be controlled separately.When blocking shunting emptying path and opening sample gas output channel, this distributing instrument also can be used as proving flowmeter and uses, and is used for calibrating the flow value of other analytical instrument.
3. the present invention has designed program control distribution pattern.In operating process to other analytical instrument calibrations, usually want a plurality of variable concentrations echelons of verification, program control distribution pattern provides the program of working out in advance that air pump, solenoid electric valve and each path mass flow controller are operated, make this device export the standard sample gas of desired concn by certain time interval, certain sequencing, program control parameter can be stored.Meet on-the-spot use habit to greatest extent, improved operating efficiency.
Description of drawings
Fig. 1 is a four-way standard gas distributing instrument schematic diagram of the present invention.
Wherein, the dedicated line interface of 1-air inlet quick plug, 2-mass flow controller, 3-gas mixing tube road, 4-sample gas output channel end, 5-gas chromatograph, 6-shunting emptying path terminal, 7-mini air pump, 8-pressure sensor, 9-air accumulator, 10-puridryer, 11-solenoid electric valve.
Empty frame table shows that the parts in the frame all are positioned at a housing.
Below in conjunction with accompanying drawing content of the present invention is described in further detail.
The specific embodiment
As shown in Figure 1, standard gas distributing instrument of the present invention, mass flow controller 2 that comprises four air inlet quick plugs 1 as the calibrating gas input channel, respectively is connected with each air inlet quick plug and the gas mixing tube road 3 that all is connected with each mass flow controller output, described gas mixing tube road output 3 are connected with sample gas output channel end 4, shunting emptying path terminal 6 respectively.Described sample gas output channel end 4 and shunting emptying path terminal 6 all are equipped with needle-valve.Gas chromatograph dedicated line interface 5 is equipped with in described sample gas output channel end 4 outlets.
At verification SF
6During gas analysis instrument, for example now be configured to SF
6Be the mixed gas of background gas, wherein SO
2Be 10ppm, H
2S is that 10ppm, CO are 10ppm.Then first three calibrating gas input channel 1 is inserted the SO of 100ppm respectively
2The H of calibrating gas, 100ppm
2(background gas of above calibrating gas is SF to the CO calibrating gas of S calibrating gas and 100ppm
6), and the 4th gas input passage 1 access purity is 99.9% above SF
6Gas.Four road gases are controlled flow separately by mass flow controller 2 independently, then can be with SO
2The flow-control of gas is at 40ml/min, H
2The flow-control of S gas is at 40ml/min, the flow-control of CO gas is at 40ml/min, the 4th gas input passage flow-control is at 280ml/min, after each channel capacity control is stable, four unified gas mixing tube roads 3 that import of channel gas, evenly mix the calibrating gas that back output mist can be used as concentration known, insert SF by sample gas output channel 4 at last
6Gas analysis instrument is finished verification to it.The mist that finally obtains is simulated SF fully
6The situation of the main catabolite in the high-tension apparatus actual moving process need not to be equipped with the chamber gas of multiple gases component, multiple concentration echelon.Greatly reduce numerous and diverse property of use cost and operation, saved the working time.Mini air pump, mass flow controller and solenoid electric valve adopt the programmable logic controller (PLC) program control operation.
Above-mentioned standard gas distributing instrument adopts the input channel of three calibrating gas and the input channel of a diluent gas, is all the quick plug form, and operation is very easy.Diluent gas also can use high-purity nitrogen, SF
6Multiple gases such as gas and pure air requires identical with the carrier gas of calibrating gas.The high concentration calibrating gas also can use the mixed gas of pure gas or a kind of specific accurate concentration.
Standard gas distributing instrument of the present invention, mass flow controller 2 that comprises two air inlet quick plugs 1 as the calibrating gas input channel, respectively is connected with each air inlet quick plug and the gas mixing tube road 3 that all is connected with each mass flow controller output, described gas mixing tube road output 3 are connected 6 with sample gas output channel end 4, shunting emptying path terminal respectively.Described sample gas output channel end 4 and shunting emptying path terminal 6 all are equipped with needle-valve.Gas chromatograph dedicated line interface 5 is equipped with in described sample gas output channel end 4 outlets.Be connected to compressed air generator assembly branch road between described one of them air inlet quick plug 1 and the mass flow controller 2 that is connected, described compressed air generator assembly props up the 11 control conductings of route magnetic valve, and described compressed air generator assembly comprises mini air pump 7, the air accumulator 9 that links to each other with the mini air pump gas outlet and the pressure sensor 8 of monitoring the air accumulator internal pressure in real time.Air cleaning drier 10 is installed in described air accumulator outlet side.
At verification SF
6During leak detector, for example now wanting configuration concentration is the SF of 30ppm
6Gas, it is the SF of 300ppm that first calibrating gas input channel is inserted concentration
6Calibrating gas (background gas is a nitrogen), the 4th gas input passage is converted to air pump provides compressed-air actuated pattern, by the air in the mini air pump 7 extraction environment, it is stored in the air accumulator 9, pressure is controlled at about 10Mpa, pressure in the air accumulator 9 is monitored in real time by pressure sensor 8, magnetic valve 11 is a conducting state under this mode of operation, and the air in the air accumulator 9 carries out the dry decontamination dedusting by air cleaning drier 10 after flow into mass flow controller 2 by magnetic valve 11.Control SF respectively by mass flow controller 2
6The flow of calibrating gas is 30ml/min, and air mass flow is 270ml/min, and it is that concentration is the SF of 30ppm that final gained mixes gas
6Gas.This mixed gas has been simulated SF
6High-tension apparatus produces the situation in various degree of gas leakage, and is on-the-spot very easy to use.Air pump, solenoid electric valve and mass flow controller adopt manually control separately.
Although by reference some preferred embodiment of the present invention, invention has been described, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (6)
1. standard gas distributing instrument, it is characterized in that, comprise at least two air inlet quick plugs (1) as the calibrating gas input channel, mass flow controller (2) that respectively is connected with each air inlet quick plug (1) and the gas mixing tube road (3) that all is connected with each mass flow controller (2) output, described gas mixing tube road (3) output is connected with sample gas output channel end (4), be connected to compressed air generator assembly branch road between one of them air inlet quick plug (1) and the mass flow controller that is connected (2), described compressed air generator assembly branch road comprises mini air pump (7), the pressure sensor (8) of air accumulator (9) that links to each other with mini air pump (7) gas outlet and real-time monitoring air accumulator internal pressure, described compressed air generator assembly prop up route magnetic valve (11) control conducting.
2. standard gas distributing instrument according to claim 1, it is characterized in that, described gas mixing tube road (3) output is connected with sample gas output channel end (4), shunting emptying path terminal (6) respectively, and described sample gas output channel end and shunting emptying path terminal all are equipped with needle-valve.
3. standard gas distributing instrument according to claim 1 is characterized in that, described air inlet quick plug (1) is 2-4.
4. standard gas distributing instrument according to claim 1 is characterized in that, described sample gas output channel brings out mouth gas chromatograph (5) is housed.
5. standard gas distributing instrument according to claim 1 is characterized in that, air cleaning drier (10) is installed in described air accumulator (9) outlet side.
6. standard gas distributing instrument according to claim 1 is characterized in that, described mini air pump (7), mass flow controller (2) and solenoid electric valve are by manual control or programmable logic controller (PLC) program control operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010176846.2A CN101811006A (en) | 2010-05-19 | 2010-05-19 | Standard gas distributing instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010176846.2A CN101811006A (en) | 2010-05-19 | 2010-05-19 | Standard gas distributing instrument |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05273170A (en) * | 1992-03-27 | 1993-10-22 | Tokyo Inst Of Technol | Active chemical sensing device |
| CN2235856Y (en) * | 1995-09-21 | 1996-09-25 | 中国人民解放军第二炮兵第一研究所 | Standard-gas generating device |
| US5661225A (en) * | 1996-09-12 | 1997-08-26 | Air Products And Chemicals, Inc. | Dynamic dilution system |
| JPH10274604A (en) * | 1997-03-28 | 1998-10-13 | Shimadzu Corp | Apparatus for preparing standard gas |
| US5996394A (en) * | 1996-11-06 | 1999-12-07 | Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E. V. | Gas meter calibration device for hydrogen-oxygen mixtures |
| CN2507015Y (en) * | 2000-04-11 | 2002-08-21 | 洪声礼 | Standard gas distributor |
| CN2689231Y (en) * | 2003-07-23 | 2005-03-30 | 北京莱森电子技术有限公司 | Standard gas intelligent proportioning apparatus |
| CN2715834Y (en) * | 2003-12-18 | 2005-08-10 | 中国科学院电子学研究所 | Sample gas distributor |
| CN1877338A (en) * | 2006-07-20 | 2006-12-13 | 中国计量科学研究院 | Dynamic air-distributing device for formaldehyde standard gas |
| CN1888515A (en) * | 2006-07-28 | 2007-01-03 | 周玉成 | Dynamic distributing system for standard gas |
-
2010
- 2010-05-19 CN CN201010176846.2A patent/CN101811006A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05273170A (en) * | 1992-03-27 | 1993-10-22 | Tokyo Inst Of Technol | Active chemical sensing device |
| CN2235856Y (en) * | 1995-09-21 | 1996-09-25 | 中国人民解放军第二炮兵第一研究所 | Standard-gas generating device |
| US5661225A (en) * | 1996-09-12 | 1997-08-26 | Air Products And Chemicals, Inc. | Dynamic dilution system |
| US5996394A (en) * | 1996-11-06 | 1999-12-07 | Deutsche Forschungsanstalt Fuer Luft- Und Raumfahrt E. V. | Gas meter calibration device for hydrogen-oxygen mixtures |
| JPH10274604A (en) * | 1997-03-28 | 1998-10-13 | Shimadzu Corp | Apparatus for preparing standard gas |
| CN2507015Y (en) * | 2000-04-11 | 2002-08-21 | 洪声礼 | Standard gas distributor |
| CN2689231Y (en) * | 2003-07-23 | 2005-03-30 | 北京莱森电子技术有限公司 | Standard gas intelligent proportioning apparatus |
| CN2715834Y (en) * | 2003-12-18 | 2005-08-10 | 中国科学院电子学研究所 | Sample gas distributor |
| CN1877338A (en) * | 2006-07-20 | 2006-12-13 | 中国计量科学研究院 | Dynamic air-distributing device for formaldehyde standard gas |
| CN1888515A (en) * | 2006-07-28 | 2007-01-03 | 周玉成 | Dynamic distributing system for standard gas |
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| CN102819261A (en) * | 2012-08-06 | 2012-12-12 | 北京雪迪龙科技股份有限公司 | Data calibration method and device |
| CN102819261B (en) * | 2012-08-06 | 2015-01-21 | 北京雪迪龙科技股份有限公司 | Data calibration method and device |
| CN103196709B (en) * | 2013-03-29 | 2015-11-18 | 重庆市电力公司电力科学研究院 | A kind of calibrating gas obtains equipment and the air supply system based on calibrating gas |
| CN103196709A (en) * | 2013-03-29 | 2013-07-10 | 重庆市电力公司电力科学研究院 | Standard gas acquisition device and gas supply system based on standard gas |
| CN104415675B (en) * | 2013-09-09 | 2017-05-17 | 中国科学院大连化学物理研究所 | Method for dynamically preparing VOCs (volatile organic compounds) online at high precision |
| CN104415675A (en) * | 2013-09-09 | 2015-03-18 | 中国科学院大连化学物理研究所 | Method for dynamically preparing VOCs (volatile organic compounds) online at high precision |
| CN103884718A (en) * | 2014-04-16 | 2014-06-25 | 中国石油化工股份有限公司 | Testing device for detecting optical gas imaging equipment |
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| CN104316579A (en) * | 2014-08-23 | 2015-01-28 | 国家电网公司 | Gas distribution method of detector for detecting SF6 gas decomposition products |
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