Fresh air dehumidification system driven by low-temperature waste heat and operation method of fresh air dehumidification system

The invention discloses a fresh air dehumidification system driven by low-temperature waste heat and an operation method of the fresh air dehumidification system, and relates to the technical field of fresh air conditioning systems. The fresh air dehumidification system comprises a first solid adsorption dehumidification heat exchanger, a second solid adsorption dehumidification heat exchanger, a first fan, a second fan, a four-way air valve, a first water pump, a second water pump, a first tee joint and a second tee joint; a first three-way valve, a second three-way valve, a first valve, a second valve, a third valve, a fourth valve and a fifth valve. The solid adsorption material is used for removing wet load in fresh air, the first water pump is used for pumping low-temperature waste heat hot water to provide regeneration heat needed in the regeneration stage of the solid adsorption material, continuous dehumidification is achieved, the second water pump is used for pre-treating residual regeneration heat