System and method for controlling gas concentration of chlorine dioxide generator
A technology of chlorine dioxide and gas concentration, which is applied in the direction of various fluid ratio control, etc., can solve the problems of easy explosion, reduced explosiveness, and reduced service life of equipment, so as to avoid high failure rate of equipment and improve reliability and economy , avoid the effect of high instrument cost
Active Publication Date: 2016-01-13
SHENZHEN SHENSHUI BAOAN WATER
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Problems solved by technology
But chlorine dioxide also has many disadvantages: first, chlorine dioxide can react explosively with many chemical substances, and it is extremely prone to explosion. If it is diluted with inert gases such as air, carbon dioxide, and nitrogen, the explosiveness will be reduced; Strong oxidizing agent, whose available chlorine is 2.6 times that of chlorine, can react violently with many substances, is highly corrosive, and reduces the service life of equipment
[0003] When chlorine dioxide is used for disinfection, under the condition of ensuring the disinfection effect, it is necessary to prevent the explosive danger caused by the excessive concentration of chlorine dioxide gas, and to reduce the corrosivity of chlorine dioxide gas to equipment. Therefore, effective devices are required. Can control the concentration of chlorine dioxide, but also prevent the strong corrosion of chlorine dioxide from affecting the service life of the equipment
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0026] Such as figure 1 As shown, a gas concentration control system for a chlorine dioxide generator includes: a chlorine dioxide generating device 11 , a gas measuring device 12 and a PLC control device 13 . When the system is working, first, the operator sets the dosage of chlorine dioxide gas, the amount of water to be treated and the first preset value in the PLC device 13 according to the process requirements. The dosage of chlorine dioxide gas can be understood as How much chlorine dioxide gas is needed for a ton of water; the first preset value is a specific concentration of chlorine dioxide gas, and if it is higher than this preset value, an explosion is likely to occur.
[0027] Secondly, the PLC control device 13 calculates the demand for chlorine dioxide gas according to the dosage of chlorine dioxide and the amount of wa...
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The invention relates to the field of gas concentration detection and discloses a system and method for controlling gas concentration of a chlorine dioxide generator. The system comprises a chlorine dioxide generating device, a gas measurement device and a PLC control device. According to the system, by leading a certain amount of air or inert gas into the chlorine dioxide generating device and calculating whether the gas concentration of chlorine dioxide is within a safety range, the problem of explosion caused by the fact that the concentration of gas inside the chlorine dioxide generating device is too high is solved effectively. Compared with the prior art, according to the system and the method, not only is the concentration of chlorine dioxide controlled effectively, but also the high corrosiveness of chlorine dioxide and the influence on the service life of a monitoring device are avoided.
Description
technical field [0001] The invention relates to the field of gas concentration detection, in particular to a gas concentration control system and method for a chlorine dioxide generator. Background technique [0002] Chlorine dioxide is internationally recognized as a safe, non-toxic green disinfectant. A large number of experimental studies abroad have shown that chlorine dioxide is a safe and non-toxic disinfectant without "three-caused" effects (carcinogenic, teratogenic, and mutagenic), and at the same time, it does not undergo chlorination reactions with organic substances during the disinfection process to generate harmful substances. Organic chlorides or other toxic substances that produce "three effects". It can kill viruses, bacteria, protozoa, algae, fungi, and various spores and bacteria formed by spores. It is used in water disinfection, pipeline containers and equipment disinfection in the food processing industry, fruit and vegetable disinfection, and epidemic...
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IPC IPC(8): G05D11/13
Inventor 蔡翌望谭家昌钟炎辉肖华明
Owner SHENZHEN SHENSHUI BAOAN WATER