Water-washing purification system continuous operation water supply and discharge device

Abstract

The invention relates to a water-washing purification system continuous operation water supply and discharge device. According to the invention, a first water storage tank and a second water storage tank are connected in parallel at a circulation water supply pipe of a mist sprayer, so that the first water storage tank and the second water storage tank alternatively store clear water and a water solution comprising volatile organic matter. The mist sprayer can spray mist continuously, so that a purification process can be performed continuously. When the concentration of the volatile organic matter in the cyclically sprayed water solution reaches a preset value, circulation water needed by the mist sprayer is supplied by the other water storage tank, and the previous water storage tank storing the water solution discharges the stored water solution under a condition that the volatile organic matter is not diluted. Therefore, a problem of diluting the water solution comprising high-concentration volatile organic matter during the discharge process of prior art is solved. With the device, the water solution comprising high-concentration volatile organic matter is not diluted during the discharge process.

Description

technical field [0001] The present invention relates to a water supply and drainage device for continuous operation of a water-washing purification system, especially a circulating water supply pipe in which two water storage tanks are connected in parallel to a water mist sprayer, so that the two water storage tanks alternately store aqueous solutions containing volatile organic compounds Design with Shimizu. Background technique [0002] The air stream to be purified produced by the industrial production process contains water-soluble volatile organic compounds, which are usually first utilized such as figure 1 Shown horizontal washing type purification system 10a or figure 2 The straight water-washing purification system 10b shown is purified, and then the unpurified volatile organic compounds are subjected to subsequent incineration or adsorption-desorption purification treatment; wherein, the water-washing purification systems 10a, 10b are placed in a gas flow channel...

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Problems solved by technology

[0003] Secondly, the water-washing type purification systems 10a, 10b are still connected with water supply pipes 21a, 21b relative to the water mist sprayers 12a, 12b, and usually the other ends of the water supply pipes 21a, 21b are connected to the airflow channels 11a, 21b to be purified. 11b bottom, and the water supply pipes 21a, 21b are provided with circulating pumps 22a, 22b, so that the aqueous solution (including washing water and condensed water) containing volatile organic compounds is sprayed circularly and the concentration of volatile organic compounds is gradually increased. There are drainage pipes 23a, 23b and water supply pipes 24a, 24b connected to the bottoms of the purification air flow passages 11a, 11b. produce penetrating phenomenon), then use the drain pipes 23a, 23b to discharge the aqueous solution and replenish the clean water from the water supply pipes 24a, 24b, so that the water washing type purification systems 10a, 10b can restore the effect of water washing and purification; however, due to the existing water supply and drainage The device carries out the procedures of discharging the aqueous solution and replenishing clean water at the same time, so that the aqueous solution containing high concentrations of volatile organic compounds is diluted by the replenishing clean water during the discharge process, which has a negative effect on the subsequent recovery and reuse of volatile organic compounds from the discharged aqueous solution. to the influence

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