Liquid-gas self-cycle steel rail cooling device

The invention discloses a liquid-gas self-cycle steel rail cooling device. The liquid-gas self-cycle steel rail cooling device is characterized in that the cooling device comprises a heat collector and a condenser, wherein thermally conductive liquid with a boiling point lower than a temperature peak value of a steel rail is stored in the heat collector, the condenser comprises a heat storage layer and a reflux container, and the heat collector is connected with the condenser through a connecting conduit to form a liquid-gas circulation loop. The liquid-gas self-cycle steel rail cooling devicehas the advantages that part of heat of the steel rail is absorbed and stored by the device by utilizing the feature of heat absorption in the liquid-gas conversion process, and the stored heat is released to the outside world in a low-temperature period, so that the accumulation of the internal temperature stress of the steel rail in a high-temperature period is reduced; moreover, the device hasscientific and reasonable