Waste heat recovery system for drain flash tank of garbage power plant

• Main Authors: DENG GANG, RAN MAOGUO, ZHONG DAYUAN, WANG YANG, XU FANGLI
• Format: Patent
• Language: Chinese; English
• Published: 18.10.2019
• Subjects: AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHINBOILERS; BLASTING; CONTROLLING WATER LEVEL; FEED-WATER SUPPLY; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; STEAM GENERATION; WEAPONS

The utility model relates to the technical field of drain flash tanks of garbage power plants. The utility model discloses a waste heat recovery system for a drain flash tank of a garbage power plant.The top of the drain flash tank is connected with a steam exhaust pipe; steam exhaust pipe connection heat exchanger, the heat exchanger comprises a shell pass and a tube pass. A condensed water outlet is formed in the bottom of the shell pass; the tube pass comprises a desalted water inlet and a desalted water outlet; the steam exhaust pipe is connected with the steam inlet, the condensed wateroutlet is connected with the drain tank through a condensed water pipe, the desalted water inlet is connected with the desalted water main pipe through a water inlet pipe, the desalted water outlet isconnected with a water outlet pipe, a plurality of deaerators are connected to the water outlet pipe in parallel, and desalted water in the desalted water main pipe can be heated by the heat exchanger and then fed into the dea