Device and method for combustion of waste oil

A device for burning waste oil, and the like, through atomization and ignition thereof in a suitable combustion chamber, comprising:

• a closed loop oil circulating system, the circulating system including a circulating conduit the conduit having a pump for pumping the oil there through, a heater for heating the oil as it is circulated by the pump, and a filter for filtering the oil as it is being circulated, an atomizing gun, the gun including a nozzle assembly and the nozzle assembly having an oil injection orifice and the nozzle assembly having means for mixing the oil with atomizing air for injecting of the air-oil mixture into the combustion chamber, and the atomizing gun further including an elongate heat exchange gun body portion connected to the nozzle assembly, and the body portion including a circulating channel therein connected to the circulating system so that oil is circulated through the body portion, and the gun body portion including a combustion oil channel extending there through for providing fluid oil communication to the nozzle assembly for delivering combustion oil thereto, and the gun body portion including an atomization air channel extending there through for providing fluid communication of pressurized atomizing air to the nozzle assembly, and the circulating system including relief valve means for maintaining the oil within the circulating system at a pressure above atmospheric suitable for resisting the production of gasses from the oil, and the atomizing gun connected to the circulating system by a combustion oil system, the combustion system including a combustion oil conduit connected to the combustion oil channel of the gun body portion and the combustion conduit having control valve means for diverting oil from the circulatory loop to the nozzle assembly of the gun body portion through the combustion oil channel thereof, and the combustion system including regulating valve means in the combustion oil conduit for maintaining the oil within the combustion system at a pressure above atmospheric suitable for resisting the production of gasses from the oil, and a pressurized air conduit connected to the pressurized air channel of the gun body portion for providing pressurized air to the nozzle assembly for atomization of the oil, and a control system, the control system including electrical connections to a heat sensing means of the circulatory system, the pumping means and the heater of the circulatory system and to the diverting valve means of the combustion oil system for first providing for operation of the pumping means and heater to allow for heating of the oil and heating of the gun body portion and nozzle assembly by circulation of the heated oil in the circulating oil channel of the gun body portion to a predetermined optimal oil combustion temperature as detected by the heat sensing means so that the diverting valve means can not be operated to provide oil to the combustion oil conduit unless such predetermined temperature is first reached, and the control system further having operational control of the actuating means and of a pressurized air control valve means connected to the pressurized air conduit for providing a substantially simultaneous flow of combustion oil and atomized air to and out of the nozzle assembly and into the combustion chamber when combustion is desired and when the predetermined combustion temperature has been reached, and the control system further including control means for turning off the oil heater of the circulating system when combustion is stopped and for continuing the operation of the pump and circulation of oil in the circulating system for a period of time after combustion has ceased for providing cooling of the gun body portion and the nozzle assembly by the flow of oil through the circulatory channel of the gun body portion, and having mechanical cleaning means including a linear actuator secured to the gun body portion, the linear actuator having a rod connected thereto and extending along and within the combustion oil channel and terminating with a needle end for releasable insertion of the needle end through the nozzle assembly and into the injection orifice thereof for blocking the injection orifice by operation of the linear actuator when combustion is not desired and retracting from and opening the injection orifice by operation of the linear actuator when combustion is desired.

A device for burning waste oil, and the like, through atomization and ignition thereof in a suitable combustion chamber, comprising:

• a closed loop oil circulating system, the circulating system including an oil circulating conduit the conduit having a pump for pumping the oil there through and a heater for heating the oil as it is circulated by the pump, an atomizing gun, the gun including a heat exchange oil channel, the heat exchange channel in fluid communication on each end thereof with the circulatory conduit and forming a portion of the closed loop circulatory system so that the oil can flow to and subsequently away from the gun as it circulates through the circulatory system, and the atomizing gun having a combustion oil channel regulatably connected to the circulating system by a combustion oil system, the combustion system including a combustion oil conduit in fluid communication with the circulatory conduit and valve means for regulatably diverting oil from the circulatory conduit to the combustion oil channel, and the atomizing gun including a nozzle assembly, the nozzle assembly in fluid communication with the combustion oil channel and with a pressurized air conduit providing pressurized air from a source thereof for providing atomizing of the combustion oil and injection thereof from an oil injection orifice of the nozzle assembly into the combustion chamber, and the diverting valve means permitting circulating of the oil through the circulating system separately from the diversion of oil therefrom to the combustion oil channel, and including an automatically operable linear actuator secured to the gun body portion, the linear actuator having a rod connected thereto and extending along and within the combustion oil channel and terminating with a needle end for releasable insertion of the needle end through the nozzle assembly and into the injection orifice thereof for blocking the injection orifice by operation of the linear actuator when combustion is not desired and retracting from and opening the injection orifice by operation of the linear actuator when combustion is desired.