CN202478880U - Dynamic gas distribution instrument - Google Patents
Dynamic gas distribution instrument Download PDFInfo
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- CN202478880U CN202478880U CN2012200861666U CN201220086166U CN202478880U CN 202478880 U CN202478880 U CN 202478880U CN 2012200861666 U CN2012200861666 U CN 2012200861666U CN 201220086166 U CN201220086166 U CN 201220086166U CN 202478880 U CN202478880 U CN 202478880U
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Abstract
The utility model relates to a gas checking device, in particular to a dynamic gas distribution instrument for calibrating or verifying a gas detecting and analyzing instrument. The dynamic gas distribution instrument comprises a first gas inlet channel, a second gas inlet channel, a third gas inlet channel, a fourth gas inlet channel, a first mass and flow controller, a second mass and flow controller, a third mass and flow controller, a fourth mass and flow controller, a gas mixing pipeline, a sample gas output channel end and a flow distribution emptying channel end; all the gas inlet channels are connected to the gas inlet ends of the corresponding mass and flow controllers respectively; the gas outlet ends of all the mass and flow controllers are connected to the same end of the gas mixing pipeline respectively; and the sample gas output channel end and the flow distribution emptying channel end are connected to the other end of the gas mixing pipeline respectively. The dynamic gas distribution instrument can fully simulate the conditions of different gases in SF6 equipment, and is high in distributed gas output accuracy and stability, and small in flow linear error.
Description
Technical field
The utility model relates to the gas calibration equipment, is specifically related to a kind of dynamic air-distributing appearance that the gas detection analyzer device is demarcated or examined and determine.
Background technology
At present, all gases check and analysis instrument, like gas analyzer, tester, alarm, purity appearance, gas leakage detector, all gases sensor, its calibrating, detection and calibration and performance evaluation all need be carried out through distributing instrument.These instrument and equipments all were to adopt the gas standard material of one-component to calibrate and demarcate in the past in the past.Because this demarcation or calibrating mode can't be simulated the multi-component complex situation of gas in the SF6 high-tension apparatus; Particularly can't simulate the situation of the main catabolite in the SF6 high-tension apparatus actual moving process and the situation in various degree that the SF6 high-tension apparatus produces gas leakage; Therefore above-mentioned instrument is difficult to the degree of accuracy and the accuracy that reach higher when applying to the analysis of SF6 high-tension apparatus gas detecting.
Summary of the invention
The task of the utility model is to provide a kind of complex situations that can simulate gas in the SF6 high-tension apparatus, thereby for the index of verification all gases analyzer the dynamic air-distributing appearance of demarcating benchmark is provided.
In order to achieve the above object; The technical scheme that the utility model adopted is: a kind of dynamic air-distributing appearance comprises first inlet channel, second inlet channel, the 3rd inlet channel, the 4th inlet channel, first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller, gas mixing tube road, appearance gas output channel end, shunting emptying tunnel ends; Wherein, First inlet channel is connected to the inlet end of first mass flow controller; Second inlet channel is connected to the inlet end of second mass flow controller; The 3rd inlet channel is connected to the inlet end of the 3rd mass flow controller; The 4th inlet channel is connected to the inlet end of the 4th mass flow controller, and the outlet side of the outlet side of the outlet side of first mass flow controller, second mass flow controller, the outlet side of the 3rd mass flow controller, the 4th mass flow controller is connected respectively to the same end on gas mixing tube road, and appearance gas output channel end, shunting emptying tunnel ends are connected respectively to the other end on gas mixing tube road.Connected mode between four inlet channels and four mass flow controllers can be quick plug, owing to adopted the quick plug form, operation rapidly, and is easy to use.
In the technique scheme, generally as the input of calibrating gas, the 4th inlet channel generally is used as the input of diluent gas for first inlet channel, second inlet channel, the 3rd inlet channel.Calibrating gas can use multiple pure gas or high concentration calibrating gas such as N2, O2, SO2, H2S, CO, H2, SF6, and diluent gas can use multiple gases such as high-purity nitrogen, SF6 gas and pure air.
In the technique scheme; The gas output flow of independent respectively each gas passage of control of first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller, and each road gas is outputed to the gas mixing tube road evenly mix.Gas evenly mixes the back and exports to by calibration equipment through appearance gas output channel end.Before gas mixes, through the gas in the shunting emptying tunnel ends emptying passage.
Above-mentioned technical scheme can also further be optimized for: first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller are digital mass flow controller; Also comprise a digital control unit, first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller are connected with digital control unit respectively.At this moment, can control each digital mass flow controller through digital control unit, by exact figure control, the biased sample gas of output more high-precision any concentration in certain ratio range.
Technique scheme can also further be optimized for: also comprise compressed air generator, first control valve, second control valve; Wherein the output of compressed air generator is connected to first control valve; The other end of first control valve is connected on the passage between the 4th inlet channel and the 4th mass flow controller inlet end and with second control valve and links to each other, and the other end of second control valve is connected on the passage between the 3rd inlet channel and the 3rd mass flow controller inlet end.
In the technique scheme; Compressed air generator can be made up of mini air pump, pressure sensor, air accumulator, puridryer; Wherein mini air pump is connected to the inlet end of air accumulator; Pressure sensor is connected on the passage between mini air pump and the air accumulator inlet end, and the outlet side of air accumulator links to each other with first control valve through puridryer.In the technique scheme, first control valve and second control valve can be solenoid electric valves.
Owing in the dynamic air-distributing appearance, be provided with compressed air generator, just can directly utilize this compressed air generator to produce pure air and be input in the corresponding passage, thereby can realize that source of the gas is supplied with quickly and easily, need not the external tank of compressed air of user.
The beneficial effect of the utility model is: this dynamic air-distributing appearance can fully be simulated multicomponent gas with various situation in the SF6 equipment, particularly can simulate the situation of the main catabolite in the SF6 high-tension apparatus actual moving process and the situation in various degree that the SF6 high-tension apparatus produces gas leakage.Adopt digital control model, the distribution output accuracy is high, good stability, and the flow linearity error is little.Built-in compressed air generator had both made things convenient for the pure air input, had saved the cost of external compressed air generator again for the client.It is pointed out that because therefore all manually control separately of each passage component of this dynamic air-distributing appearance also can be used the flowmeter of this dynamic air-distributing appearance as standard, calibrate the flow value of other analytical instrument.Therefore this dynamic air-distributing appearance has good technical effect and application prospect simultaneously.
Description of drawings
Fig. 1 is a dynamic air-distributing appearance structural representation.
Among the above-mentioned figure: 1A is first inlet channel; 1B is second inlet channel; 1C is the 3rd inlet channel; 1D is the 4th inlet channel; 2A is first mass flow controller; 2B is second mass flow controller; 2C is the 3rd mass flow controller; 2D is the 4th mass flow controller; 3 is the gas mixing tube road; 4 is appearance gas output channel end; 5 are shunting emptying tunnel ends; 6 is mini air pump; 7 is pressure sensor; 8 is air accumulator; 9 is puridryer; 10A is first control valve; 10B is second control valve.
The specific embodiment
Below in conjunction with concrete embodiment and accompanying drawing the utility model is described in further detail.
According to shown in Figure 1; Dynamic air-distributing appearance in the present embodiment comprises the first inlet channel 1A, the second inlet channel 1B, the 3rd inlet channel 1C, the 4th inlet channel 1D, the first mass flow controller 2A, the second mass flow controller 2B, the 3rd mass flow controller 2C, the 4th mass flow controller 2D, gas mixing tube road 3, appearance gas output channel end 4, shunting emptying tunnel ends 5; Wherein each inlet channel is connected respectively to the inlet end of corresponding mass flow controller; The outlet side of each mass flow controller is connected respectively to the same end on gas mixing tube road 3, and appearance gas output channel end 4, shunting emptying tunnel ends 5 are connected respectively to the other end on gas mixing tube road 3.In the present embodiment, each inlet channel all adopts quick plug to be connected with each mass flow controller.In the present embodiment, also comprise a digital control unit, each mass flow controller is digital mass flow controller, and is connected with digital control unit respectively.Operation can be disposed a touch-screen digital control unit is controlled for ease.
In the present embodiment; Also comprise by mini air pump 6, pressure sensor 7, air accumulator 8, puridryer 9 and form compressed air generator, the first control valve 10A, the second control valve 10B; Wherein mini air pump 6 is connected to the inlet end of air accumulator 8; Pressure sensor 7 is connected on the passage between mini air pump 6 and air accumulator 8 inlet ends; The outlet side of air accumulator 8 links to each other with the first control valve 10A through puridryer 9; The other end of the first control valve 10A is connected on the passage between the 4th inlet channel 1D and the 4th mass flow controller 2D inlet end and with the second control valve 10B and links to each other, and the other end of the second control valve 10B is connected on the passage between the 3rd inlet channel 1C and the 3rd mass flow controller 2C inlet end.In the present embodiment, each control valve is solenoid electric valve.
The general operation flow process of this dynamic air-distributing appearance does, calibrating gas is connected respectively to each inlet channel, through touch-screen the digital control unit relevant parameter is set then after, start distribution.Regulate appearance gas output channel end and the needle-valve of shunting in the emptying path terminal respectively, can make a kind gas output flow keep needed steady state value.
For example; Can any one road in first three inlet channel be inserted pure gas or high concentration calibrating gas; The 4th inlet channel 1D is inserted high-purity diluent gas (requirement is an identical type with the carrier gas of front calibrating gas); After through touch-screen the digital control unit relevant parameter being set then, start distribution.According to the difference of concentration, mix any low concentration aggregate sample gas of one-component, thereby in order to the demarcation benchmark as the index of verification all gases analyzer.
And for example, in verification SF6 gas analyte analytical instrument, can first three calibrating gas input channel be inserted the calibrating gas (carrier gas is a SF6 gas) of SO2, H2S and CO high concentration respectively, and the 4th inlet channel 1D inserts high-purity SF6 gas.Four road gases can be exported the COMPLEX MIXED gas of each component variable concentrations by Independent Quality flow controller adjustment process flow after evenly mixing, the situation of the main catabolite in the simulation SF6 high-tension apparatus actual moving process.
And for example; In verification SF6 leak detector; Can any one tunnel input channel in first three calibrating gas passage be inserted high-purity SF6 gas; The 4th inlet channel 1D converts compressed air generator into compressed-air actuated pattern is provided, and simulation SF6 high-tension apparatus produces the situation in various degree of gas leakage.
Though the utility model with preferred embodiment openly as above, embodiment and accompanying drawing are not to be used for limiting the utility model.In spirit that does not break away from the utility model and scope, any equivalence of being done changes or retouching, belongs to the protection domain of the utility model equally.Therefore the protection domain of the utility model should be standard with the application's the content that claim was defined.
Claims (7)
1. a dynamic air-distributing appearance is characterized in that: comprise first inlet channel, second inlet channel, the 3rd inlet channel, the 4th inlet channel, first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller, gas mixing tube road, appearance gas output channel end, shunting emptying tunnel ends; Wherein, First inlet channel is connected to the inlet end of first mass flow controller; Second inlet channel is connected to the inlet end of second mass flow controller; The 3rd inlet channel is connected to the inlet end of the 3rd mass flow controller; The 4th inlet channel is connected to the inlet end of the 4th mass flow controller, and the outlet side of the outlet side of the outlet side of first mass flow controller, second mass flow controller, the outlet side of the 3rd mass flow controller, the 4th mass flow controller is connected respectively to the same end on gas mixing tube road, and appearance gas output channel end, shunting emptying tunnel ends are connected respectively to the other end on gas mixing tube road.
2. dynamic air-distributing appearance according to claim 1 is characterized in that: said first inlet channel, second inlet channel, the 3rd inlet channel, the 4th inlet channel all adopt quick plug to be connected with first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller.
3. dynamic air-distributing appearance according to claim 1 is characterized in that: said first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller are digital mass flow controller.
4. dynamic air-distributing appearance according to claim 3; It is characterized in that: also comprise a digital control unit, said first mass flow controller, second mass flow controller, the 3rd mass flow controller, the 4th mass flow controller are connected with digital control unit respectively.
5. according to the arbitrary described dynamic air-distributing appearance of claim 1 ~ 4, it is characterized in that: also comprise compressed air generator, first control valve, second control valve; Wherein, The output of compressed air generator is connected to first control valve; The other end of first control valve is connected on the passage between the 4th inlet channel and the 4th mass flow controller inlet end and with second control valve and links to each other, and the other end of second control valve is connected on the passage between the 3rd inlet channel and the 3rd mass flow controller inlet end.
6. dynamic air-distributing appearance according to claim 5 is characterized in that: said compressed air generator is made up of mini air pump, pressure sensor, air accumulator, puridryer; Wherein, mini air pump is connected to the inlet end of air accumulator, and pressure sensor is connected on the passage between mini air pump and the air accumulator inlet end, and the outlet side of air accumulator links to each other with first control valve through puridryer.
7. dynamic air-distributing appearance according to claim 5 is characterized in that: said first control valve and second control valve are solenoid electric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200861666U CN202478880U (en) | 2012-03-09 | 2012-03-09 | Dynamic gas distribution instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200861666U CN202478880U (en) | 2012-03-09 | 2012-03-09 | Dynamic gas distribution instrument |
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| CN202478880U true CN202478880U (en) | 2012-10-10 |
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| CN2012200861666U Expired - Lifetime CN202478880U (en) | 2012-03-09 | 2012-03-09 | Dynamic gas distribution instrument |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104959049A (en) * | 2015-06-11 | 2015-10-07 | 中国船舶重工集团公司第七一八研究所 | Ultra-pure mixed gas preparation system and method |
| CN105396476A (en) * | 2015-10-22 | 2016-03-16 | 中国计量科学研究院 | Ultrahigh-purity gas dilution system |
| CN105628760A (en) * | 2016-01-18 | 2016-06-01 | 国家电网公司 | Detection and analysis device for simulating SF6 gas decomposer in GIS |
| 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 |
| CN106881029A (en) * | 2017-03-10 | 2017-06-23 | 大连大特气体有限公司 | Manual-automatic integral gaseous mixture configures system |
| CN107091905A (en) * | 2017-06-30 | 2017-08-25 | 广东电网有限责任公司电力科学研究院 | A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration method |
| CN107192833A (en) * | 2017-07-11 | 2017-09-22 | 深圳市好美达科技有限公司 | Alcohol content tester calibrating installation and alcohol content tester calibration method |
| CN107356712A (en) * | 2017-08-18 | 2017-11-17 | 国网辽宁省电力有限公司电力科学研究院 | A kind of SF6Analyte detector calibration equipment |
| CN108519380A (en) * | 2017-03-13 | 2018-09-11 | 普锐思克（武汉）科技有限公司 | The experiment platform device of laser gas detector |
| CN109584665A (en) * | 2018-11-23 | 2019-04-05 | 国网天津市电力公司电力科学研究院 | Sulfur hexafluoride leaks simulator and leak detection Training Methodology |
| CN114514486A (en) * | 2019-03-06 | 2022-05-17 | 法国国家科学研究中心 | Microfluidic generator for generating a gaseous mixture |
-
2012
- 2012-03-09 CN CN2012200861666U patent/CN202478880U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104959049A (en) * | 2015-06-11 | 2015-10-07 | 中国船舶重工集团公司第七一八研究所 | Ultra-pure mixed gas preparation system and method |
| CN104959049B (en) * | 2015-06-11 | 2017-03-22 | 中国船舶重工集团公司第七一八研究所 | ultra-pure mixed gas preparation system and method |
| CN105396476A (en) * | 2015-10-22 | 2016-03-16 | 中国计量科学研究院 | Ultrahigh-purity gas dilution system |
| CN105396476B (en) * | 2015-10-22 | 2018-01-05 | 中国计量科学研究院 | A kind of ultra-pure gases dilution system |
| 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 |
| CN105628760A (en) * | 2016-01-18 | 2016-06-01 | 国家电网公司 | Detection and analysis device for simulating SF6 gas decomposer in GIS |
| CN106881029A (en) * | 2017-03-10 | 2017-06-23 | 大连大特气体有限公司 | Manual-automatic integral gaseous mixture configures system |
| CN106881029B (en) * | 2017-03-10 | 2022-10-18 | 大连大特气体有限公司 | Manual-automatic integrated mixed gas configuration system |
| CN108519380A (en) * | 2017-03-13 | 2018-09-11 | 普锐思克（武汉）科技有限公司 | The experiment platform device of laser gas detector |
| CN107091905A (en) * | 2017-06-30 | 2017-08-25 | 广东电网有限责任公司电力科学研究院 | A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration method |
| CN107192833A (en) * | 2017-07-11 | 2017-09-22 | 深圳市好美达科技有限公司 | Alcohol content tester calibrating installation and alcohol content tester calibration method |
| CN107192833B (en) * | 2017-07-11 | 2023-12-26 | 深圳市好美达科技有限公司 | Alcohol detector calibrating device and alcohol detector calibrating method |
| CN107356712A (en) * | 2017-08-18 | 2017-11-17 | 国网辽宁省电力有限公司电力科学研究院 | A kind of SF6Analyte detector calibration equipment |
| CN109584665A (en) * | 2018-11-23 | 2019-04-05 | 国网天津市电力公司电力科学研究院 | Sulfur hexafluoride leaks simulator and leak detection Training Methodology |
| CN114514486A (en) * | 2019-03-06 | 2022-05-17 | 法国国家科学研究中心 | Microfluidic generator for generating a gaseous mixture |
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Legal Events
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| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20121010 |