초록 ▼

A compact, economical electrically heated vaporizer having a fast response time and capable of vaporizing liquified petroleum gas at a rate of ten to forty gallons or more per hour with safety and without excessive superheating and/or cracking of the liquified petroleum gas utilizes a metal casting

A compact, economical electrically heated vaporizer having a fast response time and capable of vaporizing liquified petroleum gas at a rate of ten to forty gallons or more per hour with safety and without excessive superheating and/or cracking of the liquified petroleum gas utilizes a metal casting having a closed internal cavity separated into two chambers by an integral barrier. The casting serves as a pressure vessel and heat sink as well as providing a heated interface between electric resistance heaters received in passageways in the barrier and the liquified petroleum gas. The heat generated by the heaters is disseminated uniformly throughout the casting surrounding the chambers. The liquified petroleum gas inlet at one end of the casing connects with the end of one chamber. Multiple small passageways in the barrier at the other end of the casting connect the other end of the one chamber to the adjacent end of the other chamber. The passageways are configured to create a turbulent flow which improves heat transfer. An outlet connects with the other end of the other chamber for discharge of the vaporized gas. The electrical and temperature controls for controlling the operation of the heaters and the flow of liquified petroleum gas through the chambers are housed within an enclosed chamber formed by an end cover on the other end of the casting. The temperature sensors for the temperature controls are received in passageways in the barrier.

대표청구항 ▼

A compact economical electric vaporizer unit for vaporizing liquefied gas comprising: an elongated heat-conductive casting having a longitudinally extending internal cavity bridged by an integral longitudinal divider dividing the cavity into separate elongated chambers, the casing serving both as a

A compact economical electric vaporizer unit for vaporizing liquefied gas comprising: an elongated heat-conductive casting having a longitudinally extending internal cavity bridged by an integral longitudinal divider dividing the cavity into separate elongated chambers, the casing serving both as a pressure vessel for the liquefied gas and a heat interface between a source of heat and the liquefied gas, multiple passageways through one end of the divider interconnecting the separate chambers, the passageways being sufficiently small relative to the dimension of each of the chambers and configured to create turbulence and disperse the liquefied gas into small droplets which rapidly flash to gas vapor, a liquefied gas inlet opening in the casting at a location remotely spaced from the multiple passageways and communicating with one of the chambers, a gas vapor outlet opening in the casing adjacent the inlet opening and remotely spaced from the multiple passageways and communicating with the other chamber, at least one passageway in the integral divider, each passageway holding an electric resistance heat unit, at least one temperature sensing port in the divider, each port receiving a temperature sensing means, electric power supply means connected to said at least one electric resistance heater unit, and control means responsive to the at least one temperature sensing means and operatively connected to the electric power supply means for regulating the supply of electric power to the at least one heat unit.