Off-peak electricity energy-storage combined energy supply station coupling seawater source heat pump and gas-fired boiler

The invention discloses an off-peak electricity energy-storage combined energy supply station coupling a seawater source heat pump and a gas-fired boiler. The off-peak electricity energy-storage combined energy supply station coupling the seawater source heat pump and the gas-fired boiler comprises a seawater taking and returning system, the water source heat pump unit, the condensing type gas-fired boiler, an energy-releasing heat exchanger and an energy-storage water tank. The seawater taking and returning system comprises a seawater plate heat exchanger, a grid water taking pond and a seawater pump; and the water source heat pump unit is connected with the seawater plate heat exchanger. According to the off-peak electricity energy-storage combined energy supply station coupling the seawater source heat pump and the gas-fired boiler provided by the invention, new energy is used to replace centralized heating/cooling of a coal-fired boiler implementation area, so that the aims of energy conversation and emis