The invention relates to a heating device, in particular to a
cold air surrounding type hot air decentralized heating device and aims to solve the problems that traditional heating
modes arranged in a factory building are difficult to arrange,
operating temperature of a working area is difficult to meet requirements and vertical
temperature stratification occurs easily due to the fact that the factory building is large. The
cold air surrounding type hot air decentralized heating device is characterized in that a first air inlet and a first air outlet are processed in the top surface and the bottom surface of a shell respectively, the top of a separating
barrel is fixedly connected to the inner wall of the shell, the bottom of the separating
barrel is fixedly connected to the bottom surface of the shell and communicated with the first air outlet, a plurality of air opening flow deflectors are arranged in the separating
barrel, the outer wall of the separating barrel and the shell form a
cyclone chamber, the sidewall of the shell is provided with a second air inlet, a
fresh air pipeline outside the shell is communicated with the second air inlet, a
fresh air fan is arranged in the
fresh air pipeline, the bottom of the
cyclone chamber is provided with a second air outlet, the wall of the separating barrel is provided with at least one reserved opening, and an air return
bypass valve is arranged in each reserved opening. The
cold air surrounding type hot air decentralized heating device is used for high space building heating.