Water-cooled double-layer box of reciprocating pump transmission mechanism in high-temperature environment of nuclear reactor room

The utility model provides a water-cooled double-layer box of a reciprocating pump transmission mechanism in a high-temperature environment of a nuclear reactor room. The water-cooled double-layer box comprises an inner layer, a cooling water flow channel, partition ribs and an outer layer. A cavity between the inner layer and the outer layer is the cooling water flow channel. The partition ribs are connected between the inner layer and the outer layer. The width of the cooling water flow channel is larger than the thickness of the wall of the inner wall. The width of the cooling water flow channel is larger than the thickness of the outer layer. The inner layer is located in a transmission box and provided with a bearing hole and installation holes for other transmission components. The two sides of each partition rib are tightly attached to the inner layer and the outer layer respectively. The multiple partition ribs are arranged, so that the S-shaped cooling water flow channel is formed. The water-cooled double-layer box has the advantages that the principle and the structure are simple, and manufacturing and maintaining are convenient; the cooling effect on the reciprocating pump transmission mechanism in the high-temperature environment of the nuclear reactor room can be improved, and the service life and the maintenance period of the reciprocating pump transmission mechanism can be prolonged.