Circulating water secondary utilization device applied to atmospheric and vacuum workshop

The utility model relates to a circulating water secondary utilization device applied to an atmospheric and vacuum workshop. The device comprises a first circulating main pipe, a second circulating main pipe, a first water cooling tank, a second water cooling tank, a third water cooling tank and a fourth water cooling tank, a first spiral pipeline, a second spiral pipeline, a third spiral pipelineand a fourth spiral pipeline are sequentially arranged in the first water cooling tank, the second water cooling tank, the third water cooling tank and the fourth water cooling tank respectively; thefirst water outlet pipe is further provided with a three-way valve, the three-way valve is connected with the fourth water inlet pipe through a first branch pipe, and the first branch pipe is furtherconnected with the second water inlet pipe and the third water inlet pipe through a second branch pipe and a third branch pipe respectively. The design has the advantages of being simple in structure, easy to manufacture, prac