Class F22D : PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; FEED-WATER SUPPLY; CONTROLLING WATER LEVEL; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN BOILERS
Subclass 1/14: Feed-water heaters, e.g. preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways (heat-exchange tubes in general F28F) Safety or venting devices (safety devices for boilers in general F22B 37/42)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 10352246 | Water feeding method, water feeding system implementing said method, and steam generating facility provided with water feeding system | Jul 07, 16 | Jul 16, 19 | MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
| 9903583 | Device for preventing steam from being produced in flue gas cooler for oxyfuel combustion boiler | Feb 25, 16 | Feb 27, 18 | IHI CORPORATION |
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