Booster pump cooling device for UHT

The utility model discloses a booster pump cooling device for UHT. The device comprises a UHT body, a vacuum degassing tank, a vacuum pump and a first hollow column, a cooling water pipe is arranged between the two groups of booster pumps, a water inlet pipe is arranged on one group of booster pumps, and a water outlet pipe is arranged on the other group of booster pumps, so that the booster pumpscan be effectively cooled, and meanwhile, the waste of water sources can be reduced; a second hollow column is fixedly mounted on the lower surface of the vacuum degassing tank; a first hollow columnis fixedly mounted on the upper surface of the second supporting column; the second hollow column is inserted into the first hollow column; a spring is fixedly mounted between the first hollow columnand the second hollow column; two sets of second limiting blocks are fixedly installed on the side wall of an inner cavity of the first hollow column, two sets of first limiting blocks are fixedly installed on the side wall of