Ignition gas system for liquefied petroleum gas

Abstract

The invention provides an ignition gas system for liquefied petroleum gas, comprising an ignition gas storage tank, a gas supply pipeline and a pressure regulating valve. A heater is arranged on a tank body of the ignition gas storage tank and can heat the liquefied petroleum gas in the tank body, so that the liquefied petroleum gas is vaporized and converted into a gas state, the temperature of the liquefied petroleum gas meets the temperature requirement of ignition gas, moreover, the pressure of the liquefied petroleum gas after being heated is increased, the saturated steam pressure of the liquefied petroleum gas in the tank body is increased, and therefore a vaporizer and a booster pump can be omitted in an ignition gas system based on the effect of the heater, and the whole system device is simplified. Moreover, the pressurized gaseous liquefied petroleum gas can enter a gas supply pipeline, the pressure requirement range of ignition gas is met under the action of a pressure regulating valve, and on the basis that the gaseous liquefied petroleum gas meets the ignition temperature requirement range of the ignition gas through the heater, the liquefied petroleum gas fully meets the ignition condition of the ignition gas, and effective supply to gas utilization equipment is realized.

Description

technical field [0001] The invention relates to the technical field of fuel ignition gas, in particular to an ignition gas system for liquefied petroleum gas. Background technique [0002] For dual-fuel gas turbine power plants, natural gas is generally the main fuel, and oil is the backup fuel. When burning fuel oil, some types of gas turbines require ignition gas to ignite the fuel oil. The main component of natural gas is methane. Gas turbine manufacturers require that natural gas should not be used as ignition gas, but only pure propane, pure butane or a mixture of propane and butane, that is, liquefied petroleum gas. [0003] At the same time, there are certain requirements for the physical parameters of the ignition gas, such as the pressure requirement is 1.0MPa-1.4MPa, the temperature requirement is not more than 90°C-140°C, and the ignition gas cannot contain liquid medium. [0004] At present, when liquefied petroleum gas is used as ignition gas, it needs to be p...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the technical problem that the ignition gas system of liquefied petroleum gas in the prior art is relatively complicated, requires a large number of configuration equipment, and the operation is cumbersome, which is not conducive to the effective supply of ignition gas required by the gas turbine.

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