A device for converting polluted high-temperature hot water and steam into clean water and steam

Abstract

The invention discloses a device for converting polluted high-temperature hot water and steam into clean water and steam. The device comprises one or more material containers connected in parallel, a flash tank, a water-water heat exchanger, a high-temperature clean water container, a polluted cold water tank, a low-temperature clean water tank, a clean water pump, a clean water recycling pump, an indirect heater, water draining valves, a steam pipe, a polluted flash steam pipe, a clean steam pipe and a clean hot water pipe. The indirect heater is arranged outside or inside the high-temperature clean water container; the polluted high-temperature water is generated after high pressure steam is input into the material containers through the steam pipe, the bottoms of the material containers are connected with the flash tank through the water draining valves, the bottom of the flash tank is connected with the water-water heat exchanger, and the water-water heat exchanger is connected with the polluted cold water tank through a valve or a pump or polluted water is drained to a wastewater pipe trench; the top of the flash tank is connected with the high-temperature clean water container through the polluted flash steam pipe; and the top of the high-temperature clean water container is connected with a steam user through the clean steam pipe.

Description

technical field [0001] The invention relates to a device for converting polluted high-temperature hot water and steam into clean water and steam. Background technique [0002] The material is placed in the material container, and the heating method of feeding the material container into steam to heat the material is widely used, such as sterilizer, vulcanizer, autoclave, reaction kettle, dyeing vat, etc. In industrial applications, the materials are processed in the container, and the remaining steam and high-temperature water in the container are often discharged into the environment, and the processed materials are taken out after the discharge. Due to the high-temperature water being polluted by the contact with the material to form polluted high-temperature water, the chemical change of the material at high temperature will often release unknown substances, and the released unknown substances will also pollute the steam and high-temperature water in the container. Such ...

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Problems solved by technology

[0006] The problem existing in the existing polluted high-temperature water and steam utilization process is: because the high-temperature water discharged from the drain (drainage) valve is connected to the atmosphere through the pipeline, its maximum temperature is 100 ° C, so the final result of heating the clean water entering the heat exchanger The temperature is less than 100°C, which limits the efficiency of heat energy utilization

Moreover, when the high-temperature water discharged from the drain (drain) valve is discharged into the atmosphere, a large amount of flash steam will be generated, and the flash steam will cause cavitation of the heat exchanger

When entering the radiator (radiator) to heat the low-temperature environment, the temperature of the low-temperature environment is often uncontrollable, and the polluted high-temperature water often contains unknown pollutants, which is difficult to reuse through advanced treatment; A large amount of unused heat is discharged

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