Heating device

The application discloses a heating device comprising a plurality of heating modules. The plurality of heating modules are respectively provided with first pipelines for entrance of cooling liquid andsecond pipelines for exit of the cooling liquid. In addition, the heating device also includes a cooling liquid distributor including a first distributor body; a first input interface for receiving cooling liquid and a second output interface for discharging cooling liquid are arranged at one end of the first distributor body; and a plurality of second output interfaces in communication with thefirst input interface and a plurality of second input interfaces in communication with the first output interface are arranged at the other end of the first distributor body. The plurality of second output interfaces are connected with the input terminals of the first pipelines of the plurality of heating modules and the plurality of second output interfaces are connected with the output terminalsof the second pipelines of