CN103398287A - Gas supply device capable of setting amount of gas freely - Google Patents
Gas supply device capable of setting amount of gas freely Download PDFInfo
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- CN103398287A CN103398287A CN2013103222057A CN201310322205A CN103398287A CN 103398287 A CN103398287 A CN 103398287A CN 2013103222057 A CN2013103222057 A CN 2013103222057A CN 201310322205 A CN201310322205 A CN 201310322205A CN 103398287 A CN103398287 A CN 103398287A
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Abstract
The invention belongs to the field of supply equipment of freely quantitative gas, and particularly relates to a gas supply device capable of setting the amount of gas freely. The gas supply device is characterized by comprising a gas storage tank with known constant volume, wherein a gas inlet and a gas outlet of the gas storage tank are connected with a gas inlet valve and a gas outlet valve which are controlled by a controller, respectively; the gas storage tank is provided with a pressure sensor and a temperature sensor which are used for collecting information of gas in the gas storage tank by the controller. According to the gas supply device, a Clapyron equation that PV=nRT is smartly utilized, the pressure and temperature value of the gas inside the gas storage tank before and after the gas outlet valve is opened can be collected by the controller, the gas supply amount of the gas storage tank is accurately and conveniently calculated, and then the quantitative supply of the gas inside the gas storage tank can be realized through the on and off of the gas outlet valve controlled by the controller. The gas supply device is simple and reasonable in structure, safe and reliable to operate, can ensure precision of gas supply amount, and is suitable for large-scale popularization and application.
Description
Technical field
But the present invention relates to a kind of gas supply device of amount of Set arbitrarily gaseous matter, belong to the supply arrangement field of any quantitative gas.
Background technique
In BD drag comprehensive detection device, need in cyclic process, simulate to injecting the cool air of certain amount of substance in sterilizing chamber, come analog detector that the situation of leaking occurs.This just needs a quantitative gas supplier, and known quantitative air feeder adopts cylinder to extract injection-type more at present, and cost is higher, and can only throw in the gas flow of the integer multiple of volume of cylinder, can't meet the supply of gas of the amount of arbitrary substance.
Summary of the invention
According to above deficiency of the prior art, the technical problem to be solved in the present invention is: but provide a kind of simple and reasonable, handling safety is reliable and the gas supply device of the amount of the high Set arbitrarily gaseous matter of precision.
But the gas supply device of the amount of Set arbitrarily gaseous matter of the present invention, comprise the gas holder with known constant volume, the suction port of gas holder, place, air outlet connect respectively air intake valve, the valve of giving vent to anger of being controlled by controller, and the pressure transducer and the temperature transducer that for controller, gather gas information in gas holder are installed on gas holder.
Described gas holder bottom arranges stop valve.When first past gas holder air inlet, open stop valve, to displace the original gas in gas holder.
But the described valve of giving vent to anger connects adjusting joint stream valve, thereby restriction gas feed speed prevents from supplying with too fast gas holder internal pressure and the thermotonus problem that the amount of the supply gas that causes forbidden that lags behind because of gas.
Because the volume of gas holder in the present invention is constant, according to Clapyron Equation PV=nRT, physical principle according to gas, first open air intake valve and inject air in the gas holder of constant volume, the gas holder internal pressure is closed air intake valve after reaching certain value, after pressure and temp is stable, but then opens the valve of giving vent to anger and in sterilizing chamber, slowly inject air via adjusting joint stream valve.Controller contains at least two analog quantity channels for gathering respectively gas temperature and pressure in gas holder from the above, at least contain two digital quantity output channels for controlling respectively air intake valve and the valve of giving vent to anger, according to pressure and the temperature value of gas in the gas holder of controller collection before and after the valve open of giving vent to anger, can calculate the loss amount of air in gas holder, namely to the air quantity of injecting in sterilizing chamber.The switch of controlling the valve of giving vent to anger by controller just can have been realized to the air of the amount of injection arbitrary substance in sterilizing chamber.
The beneficial effect that the present invention compared with prior art has is:
This gas supply device has utilized Clapyron Equation PV=nRT cleverly, by controller, can gather pressure and the temperature value of gas before and after the valve open of giving vent to anger in gas holder, thereby accurately calculate easily the gas delivery volume of gas holder, the switch of controlling by controller the valve of giving vent to anger again just can be realized the weight feed of gas in gas holder, the present invention is simple and reasonable, handling safety is reliable and can guarantee the precision of gas delivery volume, is suitable for large-scale promotion application.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, air intake valve; 2, gas holder; 3, pressure transducer; 4, temperature transducer; 5, the valve of giving vent to anger; But 6 adjusting joint stream valves; 7, stop valve.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further:
As shown in Figure 1, but the gas supply device of the amount of Set arbitrarily gaseous matter comprises the gas holder 2 with known constant volume, the suction port of gas holder 2, place, air outlet connect respectively air intake valve 1, the valve 5 of giving vent to anger of being controlled by controller, and the pressure transducer 3 and the temperature transducer 4 that for controller, gather gas information in gas holder are installed on gas holder 2.
Wherein: gas holder 2 bottoms arrange stop valve 7; But the valve 5 of giving vent to anger connects adjusting joint stream valve 6.
Now specific works flow process of the present invention and control computational methods are described below:
At first controller control air intake valve 1 is opened, to the interior injecting gas of gas holder 2 to certain pressure.
After gas pressure in gas holder and temperature stabilization, just can control and open the valve 5 of giving vent to anger by controller, to other equipment supply gas, before opening the valve 5 of giving vent to anger, controller is recorded the absolute pressure P of gas holder 2 interior gases this moment
1(Pa of unit) and absolute temperature T
1(unit K).The volume of the gas holder 2 of known constant volume is V
0(the m of unit
3).According to the imperial formula PV=nRT of carat uncle, calculate the amount of substance n that air valve 5 is opened front gas holder 2 interior gases
1(mol of unit):
When the valve 5 of giving vent to anger was opened, in the air supply process, the real-time absolute pressure of gas holder 2 interior gases was the Pa of P(unit), kelvin temperature is the T(unit K in real time), and the volume that gas volume is still the gas holder 2 of known constant volume is V
0(the m of unit
3).According to the imperial formula PV=nRT of carat uncle, calculate when the valve 5 of giving vent to anger is opened the mol of amount of substance n(unit of gas holder 2 interior residual gases in the air supply process):
Controller calculates the amount of substance n of supply gas in real time
2(mol of unit):
As the amount of substance n with supply gas
2While reaching the amount of need supplying with, controller is controlled and is closed the valve 5 of giving vent to anger, and then completes the supply of gas of the amount of arbitrary substance.
If for the first time, toward air inlet in gas holder, need to open stop valve, to displace the original gas in gas holder.In operating process, if the interior gas pressure deficiency of gas holder 2 occurs, if while needing temporary close to give vent to anger valve 5(unlatching), open air intake valve 1, to the interior make-up gas of gas holder 2.After gas make-up is complete, then proceed work.During operation, but need by adjusting joint stream valve restriction gas feed speed, prevent from supplying with too fast gas holder internal pressure and the thermotonus problem that the amount of the supply gas that causes forbidden that lags behind because of gas.
In order to reduce this device gas, supply with error, improve the precision of supply gas amount, can adopt higher A/D conversion accuracy, faster I/O speed of response controller and more high-precision pressure transducer 3 and temperature transducer 4, adopt simultaneously the more gas holder 2 of small volume, but adjusting joint stream valve 6 is turned down, and increased Error Compensation Algorithm.
This gas supply device is not limited to air, can throw in the various gases such as oxygen, nitrogen, carbon dioxide.
Claims (3)
1. but the gas supply device of the amount of a Set arbitrarily gaseous matter, it is characterized in that: comprise the gas holder (2) with known constant volume, the suction port of gas holder (2), place, air outlet connect respectively air intake valve (1), the valve of giving vent to anger (5) of being controlled by controller, and the pressure transducer (3) and the temperature transducer (4) that for controller, gather gas information in gas holder are installed on gas holder (2).
2. but the gas supply device of the amount of Set arbitrarily gaseous matter according to claim 1, is characterized in that: stop valve (7) is set bottom described gas holder (2).
3. but the gas supply device of the amount of Set arbitrarily gaseous matter according to claim 1 and 2 is characterized in that: the described valve of giving vent to anger (5) but connect adjusting joint stream valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103222057A CN103398287A (en) | 2013-07-29 | 2013-07-29 | Gas supply device capable of setting amount of gas freely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103222057A CN103398287A (en) | 2013-07-29 | 2013-07-29 | Gas supply device capable of setting amount of gas freely |
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| CN103398287A true CN103398287A (en) | 2013-11-20 |
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ID=49561968
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| CN2013103222057A Pending CN103398287A (en) | 2013-07-29 | 2013-07-29 | Gas supply device capable of setting amount of gas freely |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052791A (en) * | 2016-07-05 | 2016-10-26 | 杭州氢源科技有限公司 | Measurement method and device of residual hydrogen amount of solid hydrogen storage device |
| CN106932007A (en) * | 2017-04-21 | 2017-07-07 | 海正化工南通股份有限公司 | A kind of reactor gas displacement checking system |
| CN108730752A (en) * | 2018-06-08 | 2018-11-02 | 华能国际电力股份有限公司 | Supercritical carbon dioxide low-pressure storage tank device for preventing phase change from being reduced in pressure loss and control method |
| CN112345404A (en) * | 2020-10-19 | 2021-02-09 | 湖北航天化学技术研究所 | Device and method for quantitatively measuring gas generated by aging of solid propellant |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137698A (en) * | 1981-11-11 | 1983-08-16 | Hokkai Can Co Ltd | Constant volume injection device for liquefied gas |
| SU1214982A1 (en) * | 1984-05-21 | 1986-02-28 | Предприятие П/Я А-3681 | Method of regulating mass of gas |
| EP0256171A1 (en) * | 1986-08-20 | 1988-02-24 | N.V. W.A. Hoek's Machine- en Zuurstoffabriek | Apparatus for measuring and delivering predetermined quantities of a compressible medium |
| EP1398603A2 (en) * | 2002-09-12 | 2004-03-17 | Air Products And Chemicals, Inc. | Process for filling compressed gas fuel dispensers which utilizes volume and density calculations |
| JP2007024152A (en) * | 2005-07-14 | 2007-02-01 | Tokiko Techno Kk | Gas supply device |
| JP2009019669A (en) * | 2007-07-11 | 2009-01-29 | Toyota Motor Corp | Gas charging determination device |
| CN102788241A (en) * | 2012-08-23 | 2012-11-21 | 昆山宝宏机械有限公司 | Gas storage tank |
| CN203363665U (en) * | 2013-07-29 | 2013-12-25 | 山东新华医疗器械股份有限公司 | Gas supply device capable of setting amount of gaseous substances randomly |
-
2013
- 2013-07-29 CN CN2013103222057A patent/CN103398287A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137698A (en) * | 1981-11-11 | 1983-08-16 | Hokkai Can Co Ltd | Constant volume injection device for liquefied gas |
| SU1214982A1 (en) * | 1984-05-21 | 1986-02-28 | Предприятие П/Я А-3681 | Method of regulating mass of gas |
| EP0256171A1 (en) * | 1986-08-20 | 1988-02-24 | N.V. W.A. Hoek's Machine- en Zuurstoffabriek | Apparatus for measuring and delivering predetermined quantities of a compressible medium |
| EP1398603A2 (en) * | 2002-09-12 | 2004-03-17 | Air Products And Chemicals, Inc. | Process for filling compressed gas fuel dispensers which utilizes volume and density calculations |
| JP2007024152A (en) * | 2005-07-14 | 2007-02-01 | Tokiko Techno Kk | Gas supply device |
| JP2009019669A (en) * | 2007-07-11 | 2009-01-29 | Toyota Motor Corp | Gas charging determination device |
| CN102788241A (en) * | 2012-08-23 | 2012-11-21 | 昆山宝宏机械有限公司 | Gas storage tank |
| CN203363665U (en) * | 2013-07-29 | 2013-12-25 | 山东新华医疗器械股份有限公司 | Gas supply device capable of setting amount of gaseous substances randomly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052791A (en) * | 2016-07-05 | 2016-10-26 | 杭州氢源科技有限公司 | Measurement method and device of residual hydrogen amount of solid hydrogen storage device |
| CN106932007A (en) * | 2017-04-21 | 2017-07-07 | 海正化工南通股份有限公司 | A kind of reactor gas displacement checking system |
| CN108730752A (en) * | 2018-06-08 | 2018-11-02 | 华能国际电力股份有限公司 | Supercritical carbon dioxide low-pressure storage tank device for preventing phase change from being reduced in pressure loss and control method |
| CN112345404A (en) * | 2020-10-19 | 2021-02-09 | 湖北航天化学技术研究所 | Device and method for quantitatively measuring gas generated by aging of solid propellant |
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Application publication date: 20131120 |