Oil pumping preheating mechanism

The utility model discloses an oil pumping preheating mechanism, which is applied between a fuel oil storage tank and a combustor so as to pump out fuel oil in the fuel oil storage tank, preheat the fuel oil and supply the fuel oil to the combustor for combustion, and comprises an oil pump, an oil return pipe, an oil return pipe, an oil return pipe, an oil return pipe and an oil return pipe, a pump-out port of the oil pump is connected with the buffer oil tank through an oil pumping pipeline, and the oil pump pumps the fuel oil in the fuel oil storage tank into the buffer oil tank; the inlet end of the preheating pipeline is connected with the buffer oil tank, and the outlet end of the preheating pipeline is connected with a combustor; and the heating device is arranged close to the preheating pipeline and used for heating the fuel oil in the preheating pipeline. According to the utility model, fuel oil can be preheated, so that the combustion of the fuel oil is more sufficient, meanwhile, the pressure fluctu