FLOW-RATE ADJUSTING DEVICE FOR WATER SUPPLY IN STEAM GENERATING TUBE

摘要

PURPOSE: To provide a device to adjust a flow rate of supply water in the tube of a steam generator. CONSTITUTION: A removable flow rate limiting device 25 is securely arranged in a through-opening part 18 of a tube plate 15. A tube 6 is fixed in the same level position as that of above from the inside of a water box 9. The flow rate limiting device 25 is provided with an orifice plate inserted in the opening part 18 of the tube plate 15 and a means to fix the device on the tube plate 15.