Reverse-flow spray cooler

Abstract

The invention relates to a reverse-flow spray cooler which comprises a cylinder support base (1). A cylinder (2) is arranged on the cylinder support base (1). A plurality of nozzles (5) are evenly arranged on the outer wall of the upper portion of the cylinder (2). Spraying openings of the nozzles (5) are downward, an upper cone (3) is arranged on the top of the cylinder (2), a lower cone (9) is arranged at the bottom of the cylinder (2), the top of the upper cone (3) is provided with a smoke outlet (12), one side of the lower cone (9) is provided with a smoke inlet (11), and an ash discharge port (10) is formed in the bottom of the lower cone (9). According to the reverse-flow spray cooler, the direction of atomized water sprayed by the nozzles is opposite to the flow direction of smoke, internal water drops are vaporized completely in short time, the temperature target value of the outlet of the cooler can be controlled, and influences of air flow fluctuation of smoke flowing along a traditional spray cooler on vaporization response time are overcome.

Description

technical field [0001] The invention relates to a countercurrent spray cooler, which is mainly used in high-temperature flue gas cooling equipment in industries such as oil refining, petrochemical industry, metallurgy, mining, cement and environmental protection, and belongs to the technical field of spray cooling equipment. Background technique [0002] Due to the high-temperature flue gas in oil refining, petrochemical, metallurgy, mining, cement and environmental protection industries, there are frequent fluctuations in flue gas volume and flue gas temperature, and the flue gas contains high concentrations of SO 2 And soot, it is difficult to meet the production process requirements by using traditional indirect or direct cooling equipment. The production process requires high-temperature flue gas to drop the temperature to the required temperature in a very short time, and the water in the spray cooler is required to be 100% in a very short time. % atomization, all atomi...

AI Technical Summary

Problems solved by technology

[0002] Due to the high-temperature flue gas in oil refining, petrochemical, metallurgy, mining, cement and environmental protection industries, there are frequent fluctuations in flue gas volume and flue gas temperature, and the flue gas contains high concentrations of SO 2 And soot, it is difficult to meet the production process requirements by using traditional indirect or direct cooling equipment. The production process requires high-temperature flue gas to drop the temperature to the required temperature in a very short time, and the water in the spray cooler is required to be 100% in a very short time. % atomization, all atomized water droplets must be adiabatically evaporated into water vapor during the flue gas cooling process, and the nozzle does not allow water droplets to fall into the ash hopper, so as to ensure that the smoke and dust discharged from the ash hopper will not condense due to too much atomized water At the same time, it is required to meet the cooling target value of the production process, while the traditional spray cooler cannot meet this requirement

Images