WASTE HEAT USE SYSTEM, WASTE HEAT USE METHOD AND CONTROL DEVICE

• Main Author: FUJIMOTO YUHEI
• Format: Patent
• Language: English; Japanese
• Published: 22.03.2023
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

To provide a waste heat use system which can suppress a frequent start and a frequent stop of the combustion of a waste heat put-in type absorption water-cooling/heating machine.SOLUTION: A waste heat use system comprises: a waste heat put-in type absorption water-cooling/heating machine which can switch operation between a waste hot-water isolated operation using waste hot water as a heat source and a fuel combined operation using waste hot water and fuel as heat sources; a temperature sensor for detecting a cold-water outlet temperature of the waste heat put-in type absorption water-cooling/heating machine; temperature raising means which can raise a temperature of waste hot water before being put into the waste heat put-in type absorption water-cooling/heating machine; and a control device for raising the temperature of waste hot water by using the temperature raising means when the cold-water outlet temperature reaches a prescribed temperature or higher in the waste hot-water isolated operation.SELECTED DRAWING: Figure 1 【課題】廃熱投入型吸収冷温水機の燃焼の頻繁な発停を抑制することが可能な廃熱利用システムを提供する。【解決手段】廃熱利用システムは、廃温水を熱源として用いる廃温水単独運転と、廃温水及び燃料を熱源として用いる燃料併用運転とを切り替え可能な廃熱投入型吸収冷温水機と、廃熱投入型吸収冷温水機の冷水出口温度を検出する温度センサと、廃熱投入型吸収冷温水機に投入される前に廃温水を昇温させることが可能な昇温手段と、廃温水単独運転時において冷水出口温度が所定の温度以上となった場合に、昇温手段により廃温水を昇温させる制御装置とを備える。【選択図】図１