Vaporizing method of LNG (Liquefied Natural Gas) generator set

Abstract

The invention disclosure belongs to the technical field of LNG (Liquefied Natural Gas) vaporizing, in particular to a vaporizing method of an LNG generator set. The vaporizing method of the LNG generator set comprises the following concrete steps of S1, setting parameters of control equipment: as a load is constant and required gas is constant when the set normally runs, that is, heat required bya vaporizer is constant, and a monitoring range of the control equipment is set according to a reared heat value; S2, monitoring in real time by the control equipment; and S3, performing operation according to the condition (a) and the condition (b) acquired in the step S2. Total required heat is controlled according to set data of the control equipment, and degree of automation is high; whether the gas temperature of the outlet of the vaporizer meets the requirement or not is automatically judged in an unattended condition; the gas generator set is enabled to run under a comparatively good state, thereby guaranteeing normal running of the set but also intelligently controlling flow and the rotational speed of a water pump, so that resource waste is avoided, and maintenance and operation cost of the set is reduced.

Description

technical field [0001] The invention relates to the technical field of liquefied natural gas vaporization, in particular to a method for vaporizing an LNG generating set. Background technique [0002] Most of the existing LNG gas generating units adopt the air vaporizer structure. In winter or in cold regions, the gasification efficiency of the air vaporizer is greatly reduced. ℃ to become low-temperature natural gas. In order to prevent low-temperature brittleness of pipeline valves and other facilities caused by direct entry of low-temperature natural gas into the gas pipeline, and to prevent excessive supply and marketing gap caused by high density of low-temperature natural gas, the gasified natural gas needs to be heated by a water-bath natural gas heater. to 10°C, and then enter the gas pipeline of the generator set. Most of the existing water-bath vaporizers adopt mechanical design. The mechanical design is a fixed flow value. When the unit is started, the temperatu...

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Problems solved by technology

[0003] The object of the present invention is to provide a kind of vaporization method of LNG generating set, to solve the problem that when the existing air vaporizer proposed in the above background technology is used, the temperature of the body itself is relatively high, but the design of the high-flow machinery remains unchanged, which causes certain problems. waste of resources

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