STEAM SYSTEM

• Main Author: OTANI KAZUYUKI
• Format: Patent
• Language: English; Japanese
• Published: 26.03.2020
• Subjects: AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHINBOILERS; BLASTING; CONTROLLING WATER LEVEL; FEED-WATER SUPPLY; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODS OF STEAM GENERATION; PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER; STEAM BOILERS; STEAM GENERATION; WEAPONS

To provide a steam system that can effectively utilize heat energy of steam drain.SOLUTION: A steam system 1 comprises a first steam generation device 10 for generating first steam by heating first boiler feedwater supplied to a can body by a burner, a high-pressure steam utilization facility 100 for utilizing the first steam generated in the first steam generation device 10, a second steam generation device 20 for generating second steam and hot water by collecting and re-evaporating steam drain discharged from the high-pressure steam utilization facility 100, a third steam generation device 30 for generating third steam by heating second boiler feedwater while using the hot water generated in the second steam generation device 20 as heat source fluid, a low-pressure steam utilization facility 110 for utilizing the second steam generated in the second steam generation device 20 and the third steam generated in the third steam generation device 30, and a feedwater tank 40 for storing the hot water utilized in the third steam generation device 30 and makeup water as the first boiler feedwater and/or the second boiler feedwater.SELECTED DRAWING: Figure 1 【課題】蒸気ドレンの熱エネルギーを有効に活用することのできる蒸気システムを提供すること。【解決手段】蒸気システム１は、ボイラ缶体に供給した第１ボイラ給水をバーナにより加熱して第１蒸気を発生させる第１蒸気発生装置１０と、第１蒸気発生装置１０で発生した第１蒸気を利用する高圧蒸気利用設備１００と、高圧蒸気利用設備１００から排出された蒸気ドレンを回収して再蒸発させ、第２蒸気と温水とを発生させる第２蒸気発生装置２０と、第２蒸気発生装置２０で発生した温水を熱源流体として第２ボイラ給水を加熱して第３蒸気を発生させる第３蒸気発生装置３０と、第２蒸気発生装置２０で発生した第２蒸気及び第３蒸気発生装置３０で発生した第３蒸気を利用する低圧蒸気利用設備１１０と、第３蒸気発生装置３０で利用後の温水及び補給水を第１ボイラ給水及び／又は第２ボイラ給水として貯留する給水タンク４０と、を備える。【選択図】図１