Gas turbine inlet air cooling system utilizing LNG gasification cold energy and working method of gas turbine inlet air cooling system

The invention discloses a gas turbine inlet air cooling system utilizing LNG gasification cold energy and a working method of the gas turbine inlet air cooling system, and belongs to the technical field of energy conservation. Comprising an LNG storage tank, an LNG booster pump, a first heat exchanger, a second heat exchanger and a temperature and relative humidity sensor. The LNG storage tank is connected with the LNG booster pump, and the LNG booster pump is connected with pipe side inlets of the first heat exchanger and the second heat exchanger through two branches of a heat exchanger inlet pipeline. The first heat exchanger is arranged in front of an inlet of the gas turbine inlet filter; pipe side outlets of the first heat exchanger and the second heat exchanger are connected to a heat exchanger outlet pipeline; the heat exchanger outlet pipeline is connected with a natural gas supply system inlet of the gas turbine; the second heat exchanger exchanges heat with air in the environment, and the air flowi