A plasma heating apparatus including a boiler vessel for holding water to be heated, a cathode housed in the vessel, the cathode defining a watertight cathode chamber isolated from the water in the vessel, and, an anode housed in the cathode chamber, the anode
learn MoreThe utility model relates to an exhaust silencer for a steam boiler whose main body is a cylinder-shaped silencing tube whose side walls are provided with exhaust holes. The utility model is mainly characterized in that the silencing tube is sleeve tubes with a
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