CN104007003A - Method for adjusting dew point of permanent gas used in laboratory - Google Patents
Method for adjusting dew point of permanent gas used in laboratory Download PDFInfo
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- CN104007003A CN104007003A CN201410258796.0A CN201410258796A CN104007003A CN 104007003 A CN104007003 A CN 104007003A CN 201410258796 A CN201410258796 A CN 201410258796A CN 104007003 A CN104007003 A CN 104007003A
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- dew point
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Abstract
The invention discloses a method for adjusting the dew point of permanent gas used in a laboratory. The method comprises the following steps that (1) raw material permanent gas is conveyed to a raw gas storage tank through an external system; (2) the permanent gas from the raw gas storage tank is preheated through a preheater; (3) after passing through a first adjustment valve, the gas preheated by the preheater is divided into two paths to enter a matching system, and the matching system comprises two pipelines; (4) the two paths of gas in a gas mixing pipeline is mixed evenly in a matched mode; (5) the matched gas enters a finished gas tank for buffering from an outlet pipe of the gas mixing pipeline in the step (4), and the rear side of the finished gas tank is connected with a use unit. The method can fully automatically adjust the ratio between wet gas and dry gas (namely the feed gas) to achieve the gas with the needed dew point, and is simple in preparation, easy to operate and wide in application range.
Description
Technical field
The present invention relates to experimental facilities method of operating, be specifically related to a kind of use for laboratory permanent gases dew point control method.
Background technology
In the production of the industries such as metallurgy, chemical industry, pharmacy, scientific research, need to there is multi-level adjusting to the dew point of permanent gases according to the condition of production, thereby find and optimize to improve and produce or the design parameter of technological innovation.
In existing technology, for the permanent gases dew point regulating device of use for laboratory, can not well control the flow that experiment needs; And existing device precision is low, make the data precision measured low, cause thus experimental record data below inaccurate, thereby cause certain difficulty for scientific research etc.
Summary of the invention
For the deficiencies in the prior art, the object of the present invention is to provide a kind of use for laboratory permanent gases dew point control method, can realize full automatic variable-flow control according to experiment situation, meet the precision demand for control of various working condition experimentings
To achieve these goals, the present invention is achieved by the following technical solutions.
A kind of use for laboratory permanent gases dew point control method, comprises the following steps:
Step 1), raw material permanent gases delivers to Primordial Qi gas-holder by ambient systems;
Step 2), to step 1) in Primordial Qi gas-holder out permanent gases by primary heater preheating;
Step 3), gas after primary heater preheating is by after first variable valve, is divided into two-way and enters matching system, wherein matching system comprises two-way pipeline;
Wherein the gas after a road preheating enters humidifier humidification, and the gas after humidification enters gas mixing tube road; Gas after an other road preheating enters gas mixing tube road after adjusting by second variable valve equally;
Step 4), by above-mentioned steps 3) two-way gas mixing ratio in described gas mixing tube road mixes;
Step 5), the good gas of proportioning is from step 4) the outlet in gas mixing tube road enter finished product gas tank buffering, and use unit in the access of finished product gas tank rear side.
In a preferred embodiment of the invention, described step 5) in finished product gas tank on be equipped with a flowmeter be housed on a pressure transducer and outlet conduit, use gas situation for what feed back rear end, and provide signal controlling above-mentioned steps 3) in the action of first variable valve, adjusting airshed.
In a preferred embodiment of the invention, described step 3) in the signal feedback PLC controller of dew point tester on gas mixing tube road, and realize the automatic mixing of dew point by second air volume regulating valve.
By technique scheme, the present invention has the following advantages:
1, first object of the present invention is to provide the permanent gases raw material of low dew point is passed through after a branch road humidification in this process, with the permanent gases that there is no humidification in an other pipeline by volume ratio mix, proportioning goes out a kind of process that meets the required permanent gases dew point in laboratory.
2, second object of the present invention not only can realize full-automatic dew point proportioning function, but also can implement according to the demand of follow-up use unit the electrodeless regulatory function of 0-100% to permanent gases flow.
3, can, voluntarily by the chain adjustment of various operating modes of pressure and flow signal and use unit, can not cause because of the variation of follow-up gas consumption the fluctuation of system works environment and security parameter.
4, equipment is simple, easy to operate, and utilization face is wider.
Brief description of the drawings
Accompanying drawing 1 is structure principle chart of the present invention;
Accompanying drawing 2 is steering logic figure of the present invention;
In figure, 1, gas-holder, 2, humidifier, 3, the first air volume regulating valve, 4, first-hand valve, 5, the second air volume regulating valve, 6-finished product gas tank, 7, second-hand's valve, 8, retaining valve, 9, gas mixing tube, 10, dew point tester, 11, pressure transducer,, 12, PLC controller, 13, flowmeter, 14, purified water inlet, 15, sewage draining exit, 16, add gas port, 17, use unit, 18, well heater.
Embodiment
Below in conjunction with drawings and Examples to the innovative further detailed description of doing of the present invention.
With reference to accompanying drawing 1, a kind of use for laboratory permanent gases dew point regulating device, comprise: one is provided with the gas-holder 1 that adds gas port 16, one total pipeline being connected with gas-holder 1, on described total pipeline, be provided with the first air volume regulating valve 3 and well heater 18, well heater 18 can be according to process condition deferrable load, and heating-up temperature is set; The flow signal that the pressure that the first air volume regulating valve 3 feeds back by the pressure transducer 11 of equipment rear end and flowmeter 13 feed back is used for realizing the adjusting to this device total flow, is divided into two by the pipeline after the first air volume regulating valve 3,
Article one, pipeline (tolerance adjusting pipeline) is connected to gas mixing tube 9 by 5 points of the second air volume regulating valves; Another pipeline (humidification pipeline) connects humidifier 2 by first-hand valve 4, after humidifier 2 wet air duct after treatment is by second-hand's valve 7 and retaining valve 8, be also connected to gas mixing tube 9, by total flow being passed through to the shunting mixing match realization again of two arms, thereby realize the adjusting of permanent different dew points.
In order better to reach humidification object, the number of described humidifier 2 is two.Wherein the water-quality guideline in humidifier can be determined according to operation, and this humidifier is provided with purified water inlet 14 and sewage draining exit 15.The method adopting is total flow to be passed through to the shunting mixing match realization again of two arms, and gas fully mixes in mixing duct, and feeds back by the dew point analysis instrument 10 of mixing tube rear end;
The second air volume regulating valve 5 is controlled the function of the flowrate proportioning of above-mentioned two air in pipelines by the feedback signal of dew point analysis instrument 10 simultaneously, directly enters finished product gas tank 3 and is connected to use unit at the mixed finished product gas of gas mixing tube 9.
Gas mixing tube 9 is directly connected to finished product gas tank 3, after finished product gas tank 3, is directly connected to use unit by pipeline,
The dew point analysis instrument 10 of realizing dew point on-line monitoring is housed on described gas mixing tube 9, and finished product gas tank 3 is equipped with pressure transducer 11, on described finished product gas tank 3 outlet conduits, flowmeter 13 is housed, and is PLC controller 12 of this system support.
A kind of use for laboratory permanent gases dew point control method, comprises the following steps:
Step 1), raw material permanent gases delivers to Primordial Qi gas-holder by ambient systems;
Step 2), to step 1) in Primordial Qi gas-holder out permanent gases by primary heater preheating;
Step 3), gas after primary heater preheating is by after first variable valve, is divided into two-way and enters matching system, wherein matching system comprises two-way pipeline;
Wherein the gas after a road preheating enters humidifier humidification, and the gas after humidification enters gas mixing tube road; Gas after an other road preheating enters gas mixing tube road after adjusting by second variable valve equally;
Step 4), by above-mentioned steps 3) two-way gas mixing ratio in described gas mixing tube road mixes;
Step 5), the good gas of proportioning is from step 4) the outlet in gas mixing tube road enter finished product gas tank buffering, and use unit in the access of finished product gas tank rear side.
With reference to accompanying drawing 2, in actual use, also can increase PLC controller, realize automatically and controlling, the steering logic of equipment: the flowmeter 13 on pressure transducer 11 and finished product gas tank 3 outlet conduits will feed back to PLC controller 12 by gas situation, PLC controller 12 is adjusted by internal processes and is realized and adjusted order by air volume regulating valve 2; In the signal feedback PLC controller 12 of dew point tester 10, the automatic mixing of dew point adjusted and realized by air volume regulating valve 5 by PLC controller 12 by internal processes, according to the process requirements of dew point, the load of well heater can be set, adjust load variations according to the demand of technique.The present invention realizes the setting of the permanent gases of full-automatic different dew points by this device, and can realize full automatic variable-flow control according to experiment situation, meets the requirement of various working condition experimentings.
Those of ordinary skill in the art, under the enlightenment of this instructions, in the case of not departing from the scope that the claims in the present invention protect, can also make a lot of simple change, and these all belong to the row of the present invention's protection.
Claims (3)
1. a use for laboratory permanent gases dew point control method, is characterized in that, comprises the following steps:
Step 1), raw material permanent gases delivers to Primordial Qi gas-holder by ambient systems;
Step 2), to step 1) in Primordial Qi gas-holder out permanent gases by primary heater preheating;
Step 3), gas after primary heater preheating is by after first variable valve, is divided into two-way and enters matching system, wherein matching system comprises two-way pipeline;
Wherein the gas after a road preheating enters humidifier humidification, and the gas after humidification enters gas mixing tube road; Gas after an other road preheating enters gas mixing tube road after adjusting by second variable valve equally;
Step 4), by above-mentioned steps 3) two-way gas mixing ratio in described gas mixing tube road mixes;
Step 5), the good gas of proportioning is from step 4) the outlet in gas mixing tube road enter finished product gas tank buffering, and use unit in the access of finished product gas tank rear side.
2. a kind of use for laboratory permanent gases dew point control method according to claim 1, it is characterized in that, described step 5) in finished product gas tank on be equipped with a flowmeter be housed on a pressure transducer and outlet conduit, use gas situation for what feed back rear end, and provide signal controlling above-mentioned steps 3) in the action of first variable valve, adjusting airshed.
3. a kind of use for laboratory permanent gases dew point control method according to claim 1, it is characterized in that, described step 3) in the signal feedback PLC controller of dew point tester on gas mixing tube road, and realize the automatic mixing of dew point by second air volume regulating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258796.0A CN104007003A (en) | 2014-06-11 | 2014-06-11 | Method for adjusting dew point of permanent gas used in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258796.0A CN104007003A (en) | 2014-06-11 | 2014-06-11 | Method for adjusting dew point of permanent gas used in laboratory |
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| CN104007003A true CN104007003A (en) | 2014-08-27 |
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| CN201410258796.0A Pending CN104007003A (en) | 2014-06-11 | 2014-06-11 | Method for adjusting dew point of permanent gas used in laboratory |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201260940Y (en) * | 2008-09-01 | 2009-06-24 | 四川电力试验研究院 | Separated flow type standard humidity generator |
| CN201605295U (en) * | 2009-10-23 | 2010-10-13 | 宝山钢铁股份有限公司 | High-precision humidifying device for continuous annealing furnace |
| JP2011062679A (en) * | 2009-09-17 | 2011-03-31 | Hosen Techno:Kk | Apparatus for high precision humidity, flow rate control, and mixing and diluting of gas |
| CN202177833U (en) * | 2011-08-05 | 2012-03-28 | 郑州光力科技股份有限公司 | Gas humidity adjusting device |
| CN202430225U (en) * | 2011-12-31 | 2012-09-12 | 西北工业大学 | Gas temperature and humidity adjustment device |
| CN202939322U (en) * | 2012-11-30 | 2013-05-15 | 重庆四达试验设备有限公司 | Device for calibrating humidity dynamic response characteristics of sonde with double-flow method |
-
2014
- 2014-06-11 CN CN201410258796.0A patent/CN104007003A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201260940Y (en) * | 2008-09-01 | 2009-06-24 | 四川电力试验研究院 | Separated flow type standard humidity generator |
| JP2011062679A (en) * | 2009-09-17 | 2011-03-31 | Hosen Techno:Kk | Apparatus for high precision humidity, flow rate control, and mixing and diluting of gas |
| CN201605295U (en) * | 2009-10-23 | 2010-10-13 | 宝山钢铁股份有限公司 | High-precision humidifying device for continuous annealing furnace |
| CN202177833U (en) * | 2011-08-05 | 2012-03-28 | 郑州光力科技股份有限公司 | Gas humidity adjusting device |
| CN202430225U (en) * | 2011-12-31 | 2012-09-12 | 西北工业大学 | Gas temperature and humidity adjustment device |
| CN202939322U (en) * | 2012-11-30 | 2013-05-15 | 重庆四达试验设备有限公司 | Device for calibrating humidity dynamic response characteristics of sonde with double-flow method |
Non-Patent Citations (1)
| Title |
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| 李军等: "一种气源湿度控制系统", 《液压气动与密封》 * |
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Application publication date: 20140827 |
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