FUEL CELL SYSTEM

• Main Authors: TSUTSUI HIROMI, SAKOTA JUN, TAKEMOTO MASANORI
• Format: Patent
• Language: English; Japanese
• Published: 11.01.2018
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; DOMESTIC HOT-WATER SUPPLY SYSTEMS; DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS; ELECTRICITY; ELEMENTS OR COMPONENTS THEREFOR; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; RANGES; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To be applied to a circulation path 2 on which a hot water takeout part 7 to a use point is provided to supply hot water at a set temperature to the hot water takeout part 7 on the circulation path 2 or a heater 11.SOLUTION: On a circulation path 2 are provided a circulation pump 6 and a hot water takeout part 7. A hot water storage tank 4 has stored water that is heated using waste heat of a fuel cell 3. A pull-in path 10 branches from the circulation path 2 and is connected to the lower part of the hot water storage tank 4. A mixing valve 5 mixes hot water from a pull-in path 10 with hot water from the upper part of the hot water storage tank 4 to make hot water having a set temperature. The mixed hot water is returned to the circulation path 2 via a transmission path 9. A changeover valve 8 is provided in the circulation path 2's section on the downstream side of a branch part from which the pull-in path 10 branches and on the upstream side of a confluent part at which the transmission path 9 joins. A water supply path 27 for supplying water by an amount corresponding to discharged hot water at the hot water takeout part 7 is provided in the circulation path 2's section between the hot water takeout part 7 and the changeover valve 8. At the time of discharging hot water at the hot water takeout part 7, the changeover valve 8 is closed to supply hot water at the set temperature to the hot water takeout part 7.SELECTED DRAWING: Figure 1 【課題】ユースポイントへの温水取出部７が設けられた循環路２に適用され、循環路２の温水取出部７または加熱装置１１に設定温度の温水を供給する。【解決手段】循環路２には、循環ポンプ６と温水取出部７が設けられる。貯湯タンク４は、燃料電池３の廃熱を用いて貯留水が加熱される。引込路１０は、循環路２から分岐して貯湯タンク４の下部に接続される。ミキシングバルブ５は、引込路１０からの温水と貯湯タンク４の上部からの温水とを混合して、設定温度の温水とする。その温水は、送出路９を介して循環路２へ戻される。循環路２の内、引込路１０との分岐部よりも下流で、送出路９との合流部よりも上流の区間には、切替弁８が設けられる。温水取出部７から切替弁８への循環路２に、温水取出部７での出湯分の水を補給する給水路２７が設けられる。温水取出部７での出湯時、切替弁８を閉じて、設定温度の温水を温水取出部７へ供給する。【選択図】図１