The best solution to boiler surface blowdown is automatic TDS blowdown. The sensor in the blowdown system regularly detects the TDS concentration of the boiler water, compares the detection results with the set value of the controller, and then controls the action of the blowdown valve. The use of automatic control can control the TDS concentration close to the maximum allowable value to avoid steam carryover and foaming caused by high TDS concentration. Precise control can reduce the amount of sewage to a minimum, save energy, and ensure steam quality. Greatly reduce operating costs.