Abstract: The present application provides a heat exchange device.

Abstract: Provided is a tungsten electrode for molten salt electrolysis for rare earth metals preparation, including an open tungsten shell and a copper alloy body; wherein the copper alloy body is arranged inside the open tungsten shell; a tungsten buffer layer is provided between a side wall of the copper alloy body and the open tungsten shell; and a bottom of the copper alloy body is in contact with an inner bottom of the open tungsten shell.

Abstract: A damper device and a total heat exchanger including the same are provided in the present application, including: a damper plate, including an air port cover plate, and a rotating shaft disposed at the air port cover plate and extending along a diameter direction of the air port cover plate; and a damper plate fixing base configured to fix the damper plate inside the damper plate fixing base and including a fixing groove formed opposite to the rotating shaft and configured to fix the rotating shaft, the fixing groove including a recess disposed opposite to the rotating shaft and formed by further being recessed from at least a part of the outer circumference of the fixing groove. According to the above technical solutions of the present application, the damper device can ensure performance without reducing the air volume under low temperature conditions, and can also suppress icing of the damper device.

Abstract: A damper device and a total heat exchanger including the same are provided in the present application, including: a damper plate, including an air port cover plate, and a rotating shaft disposed at the air port cover plate and extending along a diameter direction of the air port cover plate; and a damper plate fixing base configured to fix the damper plate inside the damper plate fixing base and including a fixing groove formed opposite to the rotating shaft and configured to fix the rotating shaft, the fixing groove including a recess disposed opposite to the rotating shaft and formed by further being recessed from at least a part of the outer circumference of the fixing groove. According to the above technical solutions of the present application, the damper device can ensure performance without reducing the air volume under low temperature conditions, and can also suppress icing of the damper device.

Abstract: The present application provides a heat exchange device.

Abstract: A heat exchange device includes: a case, a fan provided inside the case and having a fan air outlet and a fan air inlet, a heat exchange element provided inside the case, a case air port formed in the case, and an adapter connected to the case air port at one end thereof, the adapter including more than one pipe connecting portions with different diameters, the pipe connecting portion closest to the case air port being a first pipe connecting portion, the pipe connecting portion farthest from case air port being a second pipe connecting portion; the diameter of the first pipe connecting portion is larger than the diameter of the second pipe connecting portion, and a thermal insulation component is provided in the adapter and has an air passage therein for passing air therethrough. The disclosure is advantageous in preventing occurrence of condensation and improving product safety.

Abstract: A heat exchange device includes: a case, a fan provided inside the case and having a fan air outlet and a fan air inlet, a heat exchange element provided inside the case, a case air port formed in the case, and an adapter connected to the case air port at one end thereof, the adapter including more than one pipe connecting portions with different diameters, the pipe connecting portion closest to the case air port being a first pipe connecting portion, the pipe connecting portion farthest from case air port being a second pipe connecting portion; the diameter of the first pipe connecting portion is larger than the diameter of the second pipe connecting portion, and a thermal insulation component is provided in the adapter and has an air passage therein for passing air therethrough. The disclosure is advantageous in preventing occurrence of condensation and improving product safety.