【Haichuan Equipment Guessing Game】Equipped with an electric heating wire to serve the new energy sector
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This post was last edited by Desert Fish on 2021-8-7 at 14:38
The 【Haichuan Equipment Guessing】 series is being updated continuously in 2021; all Haiyu friends are welcome to participate actively! https://bbs.hcbbs.com/thread-2079686-1-1.html (Source: Haichuan Chemical Industry Forum – Huahai Chuanliu) ------------------------------------------------------------------------------- This is a compilation post from the 【Haichuan Safety Discussion】 series; it is being updated continuously. Everyone is welcome to participate in the discussions! https://bbs.hcbbs.com/thread-3235104-1-1.html (Source: Haichuan Chemical Forum – Huahai Chuanliu) ----------------------------------------------------------------------- A compilation post on the history of Haichuan pipes is being updated continuously; learn about the development process of various types of pipes. https://bbs.hcbbs.com/thread-3068575-1-1.html (Source: Haichuan Chemical Forum – Huahai Chuanliu)
Fusion salt stop valve, for solar thermal power plants
https://www.sohu.com/a/412632864_727843
Yes, that’s it. When I first saw it, I didn’t understand it and thought it was something related to heat-treated wires
Molten salt valves used in solar thermal power plants (including some products from foreign manufacturers) generally face technical issues such as freezing and blockage, corrosion, sticking at high temperatures, and cavitation. After the molten salt solidifies, it can easily prevent the valve from opening and closing, and may even damage the packing and bellows; therefore, molten salt valve manufacturers around the world have conducted extensive research on the design and selection of packing. To address the issue of filler damage, the most critical techniques are conducting effective heat field calculations for heating and cooling the valve body, performing proper experimental verification, and selecting an appropriate heating control scheme.
What is the maximum operating temperature for this molten salt stop valve? Is that heat tracing cable used to prevent salt crystallization?
In solar thermal power plants, molten salt is used in both the heat transfer and heat storage systems. Equipment such as heat absorption towers and cold/hot molten salt storage tanks requires switches and control valves to regulate the process flow. Globe valves, gate valves, or triple-eccentric butterfly valves are generally used. The valves installed here must meet the following requirements: they must be able to withstand high temperatures, with a design temperature of up to 595 degrees℃ ； The valve has high thermal conductivity, ensuring that the molten salt remains above its freezing point at all times ； Very good corrosion resistance.
According to the information available, the temperature of molten salts can now reach over 500 degrees Celsius