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1. 发明专利

JP3936088B2 Three fluid plate type heat exchanger, and a method of manufacturing the 有权
公开(公告)号：JP3936088B2
公开(公告)日：2007-06-27
申请号：JP34827798
申请日：1998-12-08
申请人：大阪瓦斯株式会社 , 日本発条株式会社 , 荏原冷熱システム株式会社
发明人：紀夫上殿 , 修行井上 , 泰成古川 , 薫渡部 , 英光秀島 , 晃好鈴木
IPC分类号： F28D9/00 , F25B15/00 , F25B15/06
CPC分类号： F28D9/005 , F25B15/008 , F25B15/06 , F28D9/0093

2. 发明专利

JP3547265B2 Absorption chiller maintenance method and absorption chiller of 失效
公开(公告)号：JP3547265B2
公开(公告)日：2004-07-28
申请号：JP24016696
申请日：1996-09-11
申请人：大阪瓦斯株式会社
发明人：紀夫上殿 , 義美坂口 , 信児執行 , 和美山本 , 英正野中
IPC分类号： F25B15/00 , C09K5/06 , C09K5/16 , F25B47/00
CPC分类号： Y02A30/277 , Y02B30/62
摘要： PROBLEM TO BE SOLVED: To suppress progress of local corrosion by introducing oxoacid salt having reducibility with sulfur of a central atom in an absorption liquid circulating system when a reduced pressure state in the circulating system is destroyed and oxygen is mixed with the system. SOLUTION: The absorption refrigerator comprises an introducing mechanism 13 for introducing oxoacid salt having reducibility with sulfur of a central atom in an absorption liquid circulating system when a.state that a reduced pressure is destroyed is detected by a monitoring mechanism 12. That is, a reducing agent can be introduced to a high temperature regenerator 4 and a low temperature regenerator 3 becoming severe conditions and a site suitable for introducing other matter. In this case, the oxoacid salt is sulfite or hydrogensulfite, and sodium sulfite is put into a practical use. Accordingly, when the air is mixed from a connector or the like, this state is detected, and the agent of specific species is introduced in solution of the system, and hence occurrence of pitting can be suppressed irrespective of mixture of oxygen in the system.

3. 发明专利

JP3728121B2 Control apparatus of the absorption-type air-conditioning system 有权
公开(公告)号：JP3728121B2
公开(公告)日：2005-12-21
申请号：JP36367798
申请日：1998-12-22
申请人：リンナイ株式会社 , 大阪瓦斯株式会社
发明人：紀夫上殿 , 寿洋佐藤
IPC分类号： F25B15/00
CPC分类号： Y02A30/277 , Y02B30/62 , Y02B30/745
摘要： PROBLEM TO BE SOLVED: To prevent a cold/warm water flow passage from being frozen upon interruption of an absorption air conditioning apparatus. SOLUTION: An absorption air conditioning apparatus is adapted such that there are connected through a cold/warm water flow passage 46 having a cold/warm water pump P3 an absorption heat source machine where cooling operation is achieved with an absorption cycle composed of a regenerator, a condenser, an evaporator, an absorber, and an absorption pump, and a heated absorption solution is supplied from the regenerator to the evaporator through a heating absorption solution flow passage by opening a cold/hot changeover valve upon heating operation and an air conditioning heat exchanger 44 of an indoor machine RU. In the apparatus, when fresh air temperature is less than 3 deg.C, the number of revolutions of the cold/warm water pump is controlled more greatly as the number of the machines are more increased in response to the presence and the number of floor heating panels connected with an outdoor machine 100. In contrast, when no floor heating panel is connected, the revolutions are controlled more greatly in response to the number of indoor machines RU. When the floor heating panel is connected, cold/warm water is securely circulated at high revolutions for freezing prevention, while only the indoor machine RU is connected, noise is restricted.

4. 发明专利

JP3920979B2 Control apparatus of the absorption-type air-conditioning system 失效
公开(公告)号：JP3920979B2
公开(公告)日：2007-05-30
申请号：JP1543298
申请日：1998-01-28
申请人：リンナイ株式会社 , 大阪瓦斯株式会社
发明人：紀夫上殿 , 克也大島
IPC分类号： F24F11/02 , F25B15/00
CPC分类号： Y02A30/277 , Y02B30/62
摘要： PROBLEM TO BE SOLVED: To positively maintain an operation when switching from a heating operation to a cooling operation. SOLUTION: Since a refrigerant liquid is stored at a refrigerant liquid storage part 53 on cooling operation, the concentration of an absorption liquid being supplied from absorbing equipment 3 to a high-temperature reproducer 1 increases. A cooling/heating switching valve 6 is opened on heating operation, thus supplying the absorption liquid from the high- temperature reproducer 1 into an evaporator 4. When the cooling operation is started, it is discriminated whether the last operation was a heating operation or not, the speed of an absorption liquid pump P1 is controlled to a normal control speed according to the absorption liquid temperature in the high-temperature reproducer 1 in the case of the cooling operation, and the speed of the absorption liquid pump P1 is controlled to an increment control speed that is obtained by increasing the normal control speed by a specific speed in the case of the heating operation. After the heating operation, the concentration of the absorption liquid in the high-temperature reproducer l decreases after the heating operation, and pressure increases for an absorption liquid temperature in the high-temperature reproducer 1 but the speed of the absorption liquid pump P1 increases, thus positively supplying the absorption liquid into the high-temperature reproducer 1.

5. 发明专利

JP3790360B2 Absorption type refrigerating apparatus 失效
公开(公告)号：JP3790360B2
公开(公告)日：2006-06-28
申请号：JP11328498
申请日：1998-04-23
申请人：リンナイ株式会社 , 大阪瓦斯株式会社
发明人：紀夫上殿 , 泰平林
IPC分类号： F25B33/00

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