Regenerating unit and method of diesel particle trap

The invention discloses a regenerating unit and method of a self-evaporating diesel particle trap with the advantages of fuel and steam premixing and swirling flow combustion. The regenerating device of the diesel particle trap is arranged in the middle of an exhaust pipeline of a diesel powered vehicle. The device comprises a combustor, a fuel supply system, an air supply system, an exhaust pressure monitoring and controlling system and an igniting system which are respectively connected with an electronic control system, wherein the electronic control system comprises a control chip; an exhaust check valve is respectively arranged on the exhaust pipeline and controlled by the electronic control system. The regenerating method of the regenerating unit of the diesel particle trap comprises the following steps of: stopping exhaust; primarily igniting; secondarily heating; and regenerating the diesel particle trap. The fuel steam and pressurized air are premixed and fully combusted, andthe diesel particle trap is uniformly heated through a rotary fire field to rapidly reach the particle combusting temperature to ensure that particles in the diesel particle trap are combusted, so that the purpose of regenerating the diesel particle trap is achieved.