Heating device for chemical tank

The utility model relates to a heating device for a chemical tank. A container larger than the chemical tank is arranged outside the chemical tank and is filled with heat-conducting liquid; a heater is installed at the bottom of the container; a temperature controller is installed in the corresponding position of the outside of the heater; a container lid is connected with the top of the container and connected with the container through a connecting piece; and a supporting frame is installed inside the container. After the container lid is opened, a proper amount of heat-conducting liquid is infused into the container, the chemical tank is put into the supporting frame inside the container and fixed, the liquid is heated to the predetermined temperature through the heater, the temperature controller is used for indicating temperature, the chemical tank is heated by a water-bath method so that the chemical tank is evenly heated, and the effects of high heating speed and controlled internal temperature are fur