Machine room heat pipe heat-extraction system

The utility model provides a machine room heat pipe heat-extraction system which is suitable for a high heat-dissipation density machine room and used for extracting heat for the high heat-dissipation density machine room needing refrigeration all the year round. The machine room heat pipe heat-extraction system comprises a machine room indoor unit and an outdoor unit, wherein the indoor unit is communicated with the outdoor unit through an air pipe manifold and a liquid pipe manifold, the indoor unit comprises a plurality of heat pipe heat-extraction first level subsystems, each first level subsystem comprises a front back panel heat pipe heat-extraction second level subsystem and a rear back panel heat pipe heat-extraction second level subsystem, the outdoor unit comprises a three-way valve I, a three-way valve II, a natural cold source module first level subsystem, a cooling-water machine set, a water segregator, an intermediate heat exchanger first level subsystem and a water collector. According to the need of environment temperature control of the high heat-dissipation density machine room, the machine room heat pipe heat-extraction system flexibly chooses a work mode of the rear back panel heat pipe heat-extraction second level subsystem and/or a work mode of the front back panel heat pipe heat-extraction second level subsystem. According to the natural environment, the machine room heat pipe heat-extraction system can provide the situations of a natural cold resource, flexibly starts the natural cold source module first level subsystem, and assists the cooling-water machine set or replaces refrigeration, thereby lowering power dissipation of the system and saving resources.