Cooling and heat recovery system

The utility model relates to the technical field of heat furnace cooling, in particular to a cooling and heat recovery system. The cooling and heat recovery system comprises a first refrigerating unit and a second refrigerating unit. The first pipeline is provided with a first stop valve; the second pipeline is provided with a second stop valve; the third pipeline is suitable for being communicated with the first pipeline and the second pipeline, and a fifth stop valve is arranged on the third pipeline; a sixth pipeline; and the plate heat exchanger is arranged on the sixth pipeline. According to the cooling and heat recovery system, the first stop valve, the second stop valve and the fifth stop valve are arranged so that the two furnace bodies can be cooled through one refrigerating unit, the utilization rate of the refrigerating unit can be improved, the plate heat exchanger is arranged so that heat of cooling water flowing through the two furnace bodies can be absorbed, and the heat recovery efficiency can