Configuration structure and operation method of thermal steam compressor with large salt fluctuation

Abstract

The invention relates to a configuration structure and an operation method of a thermal steam compressor with large salt fluctuation. The configuration structure comprises a crystallizer / evaporator, a live steam main pipe regulating valve, a first live steam pneumatic switch valve, a first secondary steam pneumatic switch valve, a first thermal steam compressor, a second live steam pneumatic switch valve, a second secondary steam pneumatic switch valve, a second thermal steam compressor, a third live steam pneumatic control valve, a third secondary steam pneumatic control valve, a third thermal steam compressor; the crystallizer / evaporator communicates with the first thermal steam compressor through the first secondary steam pneumatic switch valve, the second secondary steam pneumatic switch valve and the third secondary steam pneumatic control valve separately; live steam communicates with a live steam main pipe through the live steam main pipe regulating valve, and the live steam main pipe communicates with the first thermal steam compressor, the second thermal steam compressor and the third thermal steam compressor through the first live steam pneumatic switch valve, the second live steam pneumatic switch valve and the third live steam pneumatic control valve separately.

Description

technical field [0001] The invention relates to a configuration structure and operation method of a thermal steam compressor with large fluctuations in salt content, especially for zero discharge of terminal water and salt production systems, including zero discharge of terminal water in industries such as iron and steel, electric power, chemical industry, and petroleum. The utility model relates to a salt making system, which belongs to the technical field of environmental protection water treatment and salt making. Background technique [0002] With the rapid development of my country's economy, the water environment has been polluted to a certain extent, and the drainage pressure received by the water environment in many places is increasing. The long-term discharge of high-salt water after treatment reaches the standard will have an impact on the local water environment. There is nowhere to reuse the power plant. In recent years, the technology of zero discharge of water...

AI Technical Summary

Problems solved by technology

Therefore, the load fluctuation range of the evaporator and crystallizer is relatively large, and the amount of steam required for evaporation and crystallization will be different, so it is difficult to select the TVR device for recycling steam. If the evaporator and crystallizer do not match the TVR device, it will be Make the system run unstable or cause increased energy consumption. In addition, the actual operating unit load of the power plant fluctuates greatly, resulting in unstable terminal water volume, and the terminal water zero discharge system will start and stop frequently at random.

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