Linkage coupling control method for super-long gravity heat pipe circulating working medium and heat pump unit

The invention discloses a linkage coupling control method for an ultra-long gravity heat pipe circulating working medium and a heat pump unit, which is characterized in that the working medium in the ultra-long gravity heat pipe absorbs underground heat and then evaporates, the working medium is changed from a liquid state to a gas state, and the gas state working medium enters a heat pipe condenser through a gas state working medium pipeline to be condensed; the liquid working medium flows back into the super-long gravity heat pipe through the liquid working medium pipeline, the working medium in the super-long gravity heat pipe reciprocates to form heat circulation, the heat exchange medium in the middle heat exchange pipeline conveys heat in the heat pipe condenser to the heat pump unit, high-temperature hot water is produced after heat extraction of the heat pump unit, and the high-temperature hot water is conveyed to a heat user through the circulating pump. The automatic control valve and the heat pump