Non-power circulating water medicine-adding method and medicine-adding device thereof

Abstract

The present invention relates to a drug adding method for non-driving circulation water and the corresponding drug-adding device, which belongs to the industrial circulation water treatment technology. The present invention is characterized in that: the present invention adopts the absorbing negative pressure in the circulation water pump; under the condition of without provided with a metering pump, the drug is added into a circulation water pipe net evenly and continually. Besides, by using of installing water sealing and the matching of each device, the device can not only avoid the empty of the water pump, but also can solve the overflowing of losing of the drug-adding as well as the blocking of the pipeline and so on. The method enhances the utilization ratio for the drug of the circulation water and decreases the operation and maintenance cost for the circulation water system, which is adaptable to the circulation water treatment in each industry; the device for implementing the method is simple with low investment, low operation fee and good economical benefit.

Description

technical field [0001] The invention relates to a method for adding a medicine for stabilizing circulating water quality. It is suitable for industrial circulating water treatment processes. Through a new type of non-powered chemical dosing device, it can greatly reduce the consumption of chemicals while ensuring the quality of circulating water. Background technique [0002] At present, there are two methods of dosing in the field of circulating water treatment, one is to use a metering pump to extract the medicine and inject the medicine into the outlet pipe of the circulating water pump; the other is to pour the medicine directly or use the dosing tank to flow into the circulating water sump. The first method must be equipped with a metering pump, and the metering pump generally has a short life, high equipment maintenance costs, and complicated operation management; at the same time, due to the existence of moving parts, there is a high pressure in the pipeline behind th...

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Problems solved by technology

[0003] In medium and small-scale circulating water treatment systems, the latter method of dosing is generally used, but this method has three problems because it is directly added to the circulating water collection tank: First, it takes a certain amount of time for the drug to diffuse in the circulating water tank. time, high-concentration chemicals will be discharged during sewage discharge; second, direct dumping will cause uneven concentration of circulating water inhaled by the pump, and cannot effectively play the role of water treatment chemicals in stabilizing water quality; Together with the suspended matter in the circulating water, it will form a sediment, resulting in the loss of the agent

These not only directly lead to an increase in the dosage of circulating water, but also increase the tendency of scaling or corrosion of pipelines and equipment in the production device, which greatly hinders the economical and long-term operation of the production device.

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