How long does it take for the cooling water to stop flowing after the by-product steam hydrochloric acid synthesis furnace is shut down?

The duration of the shutdown is influenced by various factors, such as the temperature and flow rate of the cooling water used, as well as the temperature inside the furnace before the shutdown. Generally, after shutdown, it is necessary to wait for at least a few hours until the temperature inside the furnace drops to a safe level before stopping the cooling water. The specific downtime will depend on the actual circumstances; it is recommended to follow the relevant regulations and operating guidelines in practice. .

Before shutting down, it is necessary to determine the equipment shutdown procedure and the preparatory work for shutting down the hydrochloric acid synthesis furnace based on the actual conditions. Generally, after the by-product steam hydrochloric acid synthesis furnace is shut down, to ensure safety and prevent accidents, the following steps should be followed: shut down the feed system. Stop feeding the synthesis furnace from the reactor, thereby reducing the **pressure below normal levels. Turn off the heater and heat exchanger. Turn off the heater and heat exchanger, and stop supplying heat to the reaction pipeline. Stop promoting the introduction of air or nitrogen. Stop feeding controlled air or nitrogen to the reactor to allow it to be safely emptied. Expose the reaction pipeline and hydrochloric acid storage tank. Wait for the synthesis furnace to regain its temperature before releasing it. Zero calibration of the concentration meter. Check and adjust the zero point of the hydrochloric acid concentration meter. Wastewater treatment pipes. Before disassembling the equipment, any residual waste liquids and gases inside it should be removed as much as possible to prevent environmental pollution. After going through the above steps, if the equipment is shut down for a short period of time and is restarted within a few days or a week, the pipes should be heated as necessary and water circulation maintained to prevent the equipment from freezing. If the downtime is long, more complex arrangements for storing liquids and gases are required to prevent corrosion and other problems