Detection method of gas reaction concentration and detection device

A technology of gas reaction and detection method, which is applied in measurement devices, analysis of gas mixtures, and air quality improvement.

Active Publication Date: 2018-08-07
惟能科技(常州)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Especially in the ozone industry, it is difficult for people to imagine that the detection of concentration is related to weight and volume, mainly because so far, there are no examples and scientific and technical materials related to this aspect of research and introduction.

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  • Detection method of gas reaction concentration and detection device
  • Detection method of gas reaction concentration and detection device
  • Detection method of gas reaction concentration and detection device

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Embodiment 1

[0050] In this embodiment, the chemical reaction that takes place is that oxygen is converted into ozone through corona, and the chemical equation of the reaction is: 3O 2 =2O 3 .

[0051] The detection method of gas reaction concentration comprises the steps:

[0052] Step 1), under the same conditions, measure the total volume flow Q of the gas reactant before the reaction in real time 1 , where each gas reactant is input according to the ratio of the corresponding stoichiometric numbers in the chemical equation, and the total volume flow Q of the gas mixture after the reaction is measured in real time 2 ;

[0053] In this embodiment, the chemical reaction that occurs is a chemical reaction in which oxygen is converted into ozone. Under the same temperature and pressure conditions, the volume flow Q of the incoming gas is measured in real time 1 , real-time measurement of the volume flow Q of the discharged gas 2 . It can also measure the mass flow of the gas before t...

Embodiment 2

[0104] In this embodiment, the chemical reaction that takes place is that nitrogen and hydrogen are converted into ammonia through corona, and the chemical equation of the reaction is:

[0105] N 2 + 3H 2 ⇌2NH 3 . The mixed gas of nitrogen and hydrogen is led in through the inlet pipe 5, and the gas discharged from the outlet pipe 4 is a mixed gas of nitrogen, hydrogen and ammonia.

[0106] The detection method of gas reaction concentration comprises the steps:

[0107] Step 1), under the same conditions, measure the total volume flow Q of the gas reactant before the reaction in real time 1 , where each gas reactant is input according to the ratio of the corresponding stoichiometric numbers in the chemical equation, and the total volume flow Q of the gas mixture after the reaction is measured in real time 2 ;

[0108] In this embodiment, the chemical reaction that takes place is the conversion of nitrogen and hydrogen into ammonia by corona. Under the same temperature ...

Embodiment 3

[0124] The difference between embodiment 3 and embodiment 1 is that the voltage inside and outside the gas channel is 2000V, and the gas flow rate is 4m 3 / h, so that the ozone concentration contained in the oxygen through the reaction tube 8 is at 500g / m 3 above. The inner coolant is cooling water, and the outer coolant is cooling oil.

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Abstract

The invention provides a detection method of gas reaction concentration and a detection device and belongs to the technical field of concentration detection. The detection method is characterized by comprising the following steps: step 1), measuring total volume flows Q1 and Q2 of gas reactants before reaction in real time; step 2), calculating a real-time volume flow difference delta Q of gas before and after a chemical reaction; step 3), determining a relation between a volume change value delta V and a volume V of gas to be detected of the gas before and after the reaction and calculating avolume flow Q3 of the gas to be detected; step 4), equalizing each gas reactant into an equivalent reactant according to a ratio of corresponding stoichiometric numbers; step 5), calculating the gasmass percent of the gas to be detected. According to the detection method of the gas reaction concentration, through gas volume change relation before and after the chemical reaction, the difficulty in the prior art that the gas needs to be detected through a sampling manner is overcome, and the detection accuracy and the detection stability are improved; an ozone generation device can be used formonitoring the concentration of produced ozone in real time.

Description

technical field [0001] A detection method and a detection device for a gas reaction concentration belong to the technical field of concentration detection. Background technique [0002] Ozone is an allotrope of oxygen. At room temperature, ozone is a blue gas with a special odor. Ozone has many uses. It can perform advanced treatment on industrial sewage, domestic sewage and hospital sewage, and can remove All kinds of impurities can be disinfected and sterilized; ozone can remove scale and prevent pipelines from being blocked; there is no residue harmful to the human body (such as carcinogenic halogenated organic substances produced by chlorine disinfection), which is beneficial to improving the safety of drinking water Disinfecting quality issues is very effective. At present, the application of ozone is still accelerating. In the field of semiconductor manufacturing, the formation of high-quality oxide films, the corrosion and cleaning process of photoresist films, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0004G01N33/0039Y02A50/20
Inventor 曹祚
Owner 惟能科技(常州)有限公司
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