CONSTANT-VISCOSITY OIL SUPPLYING DEVICE

• Main Author: YAMAMOTO KAZUMI
• Format: Patent
• Language: English
• Published: 05.09.1989
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FEEDING FUEL TO COMBUSTION APPARATUS; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

PURPOSE:To supply a combustor with an oil having a constant viscosity, by providing a high-pressure pressure control valve in a return line between a heater outlet and the combustor, providing a fluid controller in a detection line branched from the return line, providing a low-pressure pressure control valve on the downstream side of the fluid controller, and connecting an outlet-side piping to the suction side of a supplying pump. CONSTITUTION:When a fuel oil is supplied to a combustion apparatus 2 by a supplying pump 3, the pressure of the oil is maintained to be constant by a high-pressure pressure control valve 7, whereas the pressure on the outlet side of a fluid controller 5 is maintained to be constant by a low-pressure pressure control valve 8. When the viscosity of the fuel oil is increased, the flow rate of a flow through the fluid controller 5 is reduced, the opening of the pressure control valve 8 is reduced, and a signal of the changed opening of the valve 8 is sent to a vapor control valve 10 to increase the quantity of a vapor fed to a feeding heater 4, thereby raising the temperature of the fuel oil. The viscosity of the fuel oil is decreased, the quantity of the oil is increased, and the opening of the valve 8 is returned to an initial value. When the viscosity of the fuel oil is deceased, an operation opposite to the above is conducted. By this, the fuel oil with constantly fixed viscosity is supplied to the combustion apparatus 2.