Recycling device for cooling water of high-pressure water feeding pump

A recycling device for cooling water of a high-pressure water feeding pump comprises a high-pressure water feeding pump body, a water feeding pump body and a motor which are connected with each other are arranged in the high-pressure water feeding pump body, and a cooling water inlet and a cooling water outlet are formed in the two ends of the water feeding pump body respectively. A first mechanical seal cooler and a second mechanical seal cooler are respectively mounted on the outer sides of the cooling water inlet and the cooling water outlet, one ends of the first mechanical seal cooler and the second mechanical seal cooler are respectively connected with a demineralized water inlet pipeline, and the other ends of the first mechanical seal cooler and the second mechanical seal cooler are respectively connected with a demineralized water return pipeline; a C-shaped connecting pipeline is arranged on the demineralized water inlet pipeline and the demineralized water return pipeline, and after the C-shaped co