Patent ID: 7975758

Claim:
A condenser tubes cleaning system with bypass function, comprising: a number of cleaning balls for circulating with the liquid through the condenser tubes; a flow diverter installed on the main supply pipe and having a side provided with a first branch pipe and a second branch pipe; a three-way valve mounted on the first branch pipe; a first one-way valve mounted at the upstream side of the second branch pipe; a bypass pipe mounted between the three-way valve and the second branch pipe to connect the first branch pipe and the second branch pipe via the three-way valve; a ball trap installed on the main return pipe and having an outer pipe connected to the main return pipe and a cylindrical perforated screen fixed in the outer pipe eccentrically; a ball barrel having a first side provided with a liquid supply pipe connected to the first branch pipe via the three-way valve and a cleaning ball supply pipe connected to the second branch pipe via the first one-way valve and having a second side provided with a cleaning ball return pipe connected to the cylindrical perforated screen of the ball trap and a liquid return pipe connected to the outer tube of the ball trap; a second one-way valve mounted on the cleaning ball return pipe; a normally open two-way valve mounted on the liquid return pipe; a perforated partition fixed in the ball barrel to divide the ball barrel into an upper chamber which is connected to the liquid supply pipe, the cleaning ball supply pipe and the second one-way valve, and a lower chamber which is connected to the normally open two-way valve.