Chlorine dioxide generator

Abstract

According to a chlorine dioxide generator provided by the invention, a tubular reactor is adopted, and a reaction solution flows and turns at a certain speed in a pipeline by controlling the flow direction of the reaction solution and the parameters of a reaction tube, so that sufficient stirring is realized, and the reaction is uniform. Chlorine dioxide conversion rate tests show that the chlorine dioxide generator provided by the invention can enable the chlorine dioxide conversion rate to be greater than or equal to 95%, which is much higher than the national performance requirements on thechlorine dioxide generator. The chlorine dioxide generator provided by the invention is in a liquid phase and does not contain a gas phase, chlorine dioxide is not easy to decompose and explode, no leakage risk exists, and the safety of the reaction process is high; and a mixed liquid can flow out by adopting a water ejector with a lower vacuum degree, so that the energy consumption is reduced. In addition, the chlorine dioxide generator provided by the invention is stable and reliable in operation and stable in chlorine dioxide yield; the manufacturing cost is low, the structure is simple, and the industrial application prospect is good.

Description

technical field [0001] The invention relates to the field of disinfection and sterilization, in particular to a chlorine dioxide generator. Background technique [0002] Chlorine dioxide is an internationally recognized safe and non-toxic green disinfectant. Due to its strong selective oxidation ability and broad-spectrum and high-efficiency bactericidal ability, it has been used for pulp and fiber bleaching and drinking water disinfection. , food processing, preservation, waste water treatment, medical disinfection and sterilization, bleaching, water injection oil recovery, oil well deblocking and control of biological pollution and many other aspects. [0003] The current prior art generally uses reactors or multi-stage reactors in series to prepare chlorine dioxide, but because the reactor is in gas-liquid two-phase during the preparation process, chlorine dioxide is an unstable gas, and its volume in the space is greater than 10% there is a risk of explosion. Therefore...

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Problems solved by technology

However, the aeration process is also very difficult to operate in actual operation: if the aeration is too small, it will not have the effect of mixing and dilution, on the one hand, it will affect the chemical reaction effect, on the other hand, it will cause the concentration of chlorine dioxide in the gas phase to be too high Large, prone to explosion; and when the aeration is too large, the "flooding" phenomenon occurs in the reactor, so that the aeration not only fails to achieve its due effect, but also destroys the flow of the liquid in the chlorine dioxide generator. Affect the conversion rate of chlorine dioxide

Moreover, the existing technology also includes operations such as stirring in order to react uniformly and fully. At the same time, because the reactor is a gas-liquid two-phase, in order to make the chlorine dioxide mixture flow out, the working pressure of the water injector is ≥ 0.8MPa, and these operations have increased. Practical difficulty and equipment cost

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