PROBLEM TO BE SOLVED: To provide a waste-heat recovery unit capable of efficiently utilizing waste-heat.SOLUTION: A heat receiving part 17 is provided with a heat transport part 19. The heat transport part 19 is a location where heat received by the heat receiving part 17 is transferred to a heat radiation part 21b and the like to be described later. The heat transport part 19 is a heat pipe, for example. The heat transport part 19 is provided with heat radiation parts 21a, 21b. Upon receiving heat at the heat receiving part 17, the heat is transmitted to the heat transport part 19. The heat flowed into the heat transport part 19 is mainly transported to the heat radiation part 21b under a usual state. The heat radiation part 21b radiates heat to cooling water flowing in a cooling water passage 7. In this case, the heat receiving part 17 in this invention is constituted by a heat control member where its coefficient of thermal conductivity is decreased due to increasing in temperature. The heat receiving part 17 is made of aluminum nitride, for example. As a heat control member, it is preferable that a thermal conductivity at 25°C, for example, is 130 W/m.K or more and a thermal conductivity at 800°C is 50 W/m.K or less.
【課題】 排熱を効率よく利用可能な排熱回収器等を提供する。【解決手段】 受熱部17には、熱輸送部19が設けられる。熱輸送部19は、受熱部17で受けた熱を後述する放熱部21b等に輸送する部位である。熱輸送部19は、例えばヒートパイプである。熱輸送部19には、放熱部21a、21bが設けられる。受熱部17が受熱すると、熱は熱輸送部19に伝わる。熱輸送部19に流入した熱は、通常時には、主に放熱部21bへ輸送される。放熱部21bは、冷却水経路7内を流れる冷却水へ熱を放熱する。ここで、本発明では、受熱部17が、温度上昇によって熱伝導率が低下する熱制御部材で構成される。例えば、受熱部17は、窒化アルミニウムなどで構成される。熱制御部材としては、例えば、25℃における熱伝導率が130W/m・K以上であり、800℃における熱伝導率が50W/m・K以下であることが望ましい。【選択図】図2
WASTE-HEAT RECOVERY UNIT AND WASTE-HEAT UTILIZATION SYSTEM
排熱回収器および排熱利用システム
2015-08-20
Patent
Electronic Resource
Japanese
IPC: | F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / F02G HOT-GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS , mit Heißgas oder Verbrennungsgasen betriebene Kraftmaschinenanlagen, wobei die Kraftmaschinen mit Verdrängerwirkung arbeiten / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |
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Engineering Index Backfile | 1943
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