Energy-saving type multiple-effect VOCs purification reactor

Abstract

The invention discloses an energy-saving type multiple-effect VOCs purification reactor. The energy-saving type multiple-effect VOCs purification reactor comprise a purification device, and a filter device is arranged on the left side of the purification device; an absorption device operates under pushing of waste gas, absorption liquid is stirred, thus gas-liquid turbulence degree is improved, VOCs can be promoted to enter into the absorption liquid, the rate of the VOCs entering the absorption liquid is increased, the adsorption liquid is sprayed through a spraying mixing device, thus the adsorption liquid is mixed with the waste gas in a fogdrop mode, the waste gas is purified again, the purification effect is further improved, meanwhile the waste gas and fogdrop can be evenly mixed through the spraying mixing device, the purification effect is advantageously improved, through matching of a weighing device, a liquid placing device and a liquid level control device, the using degreeof the adsorption liquid is monitored, the adsorption liquid is replaced automatically, the problems of waste generation due to incompletion using of the adsorption liquid, and waste gas purificationeffect influenced by supersaturation of the adsorption liquid are avoided, and the practicability of the energy-saving type multiple-effect VOCs purification reactor is improved.

Description

technical field [0001] The invention relates to the field of VOCs purification reactors, in particular to an energy-saving multi-effect VOCs purification reactor. Background technique [0002] VOCs refer to organic compounds with a saturated vapor pressure greater than 70Pa at normal temperature and a boiling point below 260°C at normal pressure, or all organic compounds with a vapor pressure greater than or equal to 10Pa and volatile at 20°C, which are ubiquitous in the atmosphere An organic pollutant mainly comes from coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent manufacturing and use, automobile engine exhaust, pharmaceutical and other industries. Its main components are hydrocarbons, phenols, aromatics, etc. VOCs participate in The formation of ozone and secondary aerosols in the atmospheric environment makes an important contribution to regional atmospheric ozone pollution and PM2.5 pollution. Most VOCs have unpleasant special odors...

AI Technical Summary

Problems solved by technology

[0003] The existing absorption VOCs purification reactor is mainly composed of an intake pipe, a dust filter, an absorption tower, a spray head, a circulation pump, and an air outlet pipe. Drive the absorption liquid in the absorption tower to move and spray it out through the spray head, then the absorption liquid contacts the VOCs in the exhaust gas, and then the VOCs dissolve in the absorption liquid or react with the absorption liquid, and transfer the VOCs in the exhaust gas to the absorption liquid, To achieve the purpose of purifying VOCs exhaust gas, however, in the actual use process, the dust filter is easily blocked by particles in the exhaust gas, and the dust filter needs to be disassembled and cleaned frequently. The operation is very troublesome, time-consuming and laborious, and reduces the treatment efficiency of exhaust gas Moreover, the contact area between the exhaust gas and the absorption liquid is small, resulting in a slow rate of VOCs entering the absorption liquid, further reducing the treatment efficiency of the waste gas, and the purification effect is poor. At the same time, the absorption liquid in the absorption tower needs to be replaced by workers regularly, which is affected by the VOCs content in the exhaust gas. Influence, this method of replacing the absorption liquid has the disadvantages of incomplete use of the absorption liquid resulting in waste and oversaturation of the absorption liquid affecting the exhaust gas purification effect, so it is urgent to design an energy-saving multi-effect VOCs purification reactor

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