Self -imposed circulating device of nitric acid process machine pump mechanical seal cooling water

The utility model particularly relates to a self -imposed circulating device of nitric acid process machine pump mechanical seal cooling water has solved cooling water system that current nitric acid process machine pump mechanical seal adopted and has existed because of easily revealing the technical problem who leads to polluting the production facility of nitric acid, include desalination basin, at least one desalination water pump, take off brine cooler and each nitric acid process pump, the delivery port and the water inlet of desalination water pump of desalination basin are connected, and the delivery port and the water inlet that takes off brine cooler of desalination water pump are connected, take off brine cooler's delivery port and are connected with the water inlet of the mechanical seal cooling water of each nitric acid process pump, and the delivery port of the mechanical seal cooling water of each nitric acid process pump is connected with the water inlet of desalination basin respectively. The