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1. 发明专利

JP2003056911A Heat recovery system 有权
标题翻译：热回收系统
公开(公告)号：JP2003056911A
公开(公告)日：2003-02-26
申请号：JP2001242151
申请日：2001-08-09
申请人： Noritz Corp , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ノーリツ , 西部瓦斯株式会社
发明人： SHIMIZU TAKEHIRO , SAEKI TAKUJI , ARAI TATSURO , SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , SUGAWARA TADAO , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO
IPC分类号： F24H1/00 , F24D3/08
CPC分类号： Y02T10/166
摘要： PROBLEM TO BE SOLVED: To ensure reheating of a bath with the aid of recovered heat without additionally providing a heat exchanger. SOLUTION: Heating water is circulated through a connection section 5d, a three-way valve 17, a bypass passage 16, and an exhaust heat heating heat exchanger 3 from a heating pump 9, whereby waste heat from a gas engine 1 is recovered, while heating water is circulated through a heating heat exchanger 8, a solenoid valve 13, and a bath heat exchanger 10 from the heating pump 9, whereby water in a bathtub is indirectly heated to reheat the bath.
摘要翻译：要解决的问题：为了确保借助于回收的热量再次加热浴，而不另外提供热交换器。解决方案：加热水从加热泵9通过连接部分5d，三通阀17，旁通通道16和排气加热热交换器3循环，从而回收来自燃气发动机1的废热，同时加热水通过来自加热泵9的加热热交换器8，电磁阀13和浴热交换器10循环，由此间接加热浴缸中的水以再加热浴。

2. 发明专利

JP2003056909A Heat recovery apparatus and cogeneration system 审中-公开
标题翻译：热回收装置和加热系统
公开(公告)号：JP2003056909A
公开(公告)日：2003-02-26
申请号：JP2001239228
申请日：2001-08-07
申请人： Noritz Corp , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ノーリツ , 西部瓦斯株式会社
发明人： ARAI TATSURO , SAEKI TAKUJI , SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , SUGAWARA TADAO , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO
IPC分类号： F24H1/00 , C02F1/02 , C02F1/32
摘要： PROBLEM TO BE SOLVED: To provide a high reliability heat recovery apparatus and cogeneration system without causing the possibility of the propagation of Legionella. SOLUTION: A heat recovery apparatus is adapted such that a hot medium heated with heat produced by a fuel cell 1 is circulated, whereby the heat recovered from the fuel cell 1 is dissipated in a heat exchanger 6 to heat water in a hot water storage tank 5 for heat storage. In the apparatus, an electric heater 3 is provided for heating the hot medium, with which heater 3 the heat medium is heated with the aid of surplus electric power of the fuel cell 1 or electric power of a commercial power supply 15 to bring the temperature of warm water in the hot water storage tank 5 to 80 deg.C or higher for sterilization processing.
摘要翻译：要解决的问题：提供高可靠性热回收装置和热电联产系统，而不会导致军团菌传播的可能性。解决方案：热回收装置适于使得由燃料电池1产生的热量加热的热介质循环，从而从燃料电池1回收的热量在热交换器6中散热，以便将热水储存罐 5用于储热。在该装置中，设置有用于加热热介质的电加热器3，加热器3借助于燃料电池1的剩余电力或商用电源15的电力来加热热介质，以使温度的热水储存罐中的温水5〜80℃以上进行灭菌处理。

3. 发明专利

JP2003056910A Heat recovery apparatus and cogeneration system 审中-公开
标题翻译：热回收装置和加热系统
公开(公告)号：JP2003056910A
公开(公告)日：2003-02-26
申请号：JP2001239229
申请日：2001-08-07
申请人： Noritz Corp , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ノーリツ , 西部瓦斯株式会社
发明人： ARAI TATSURO , SAEKI TAKUJI , SHIMIZU TAKEHIRO , SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , SUGAWARA TADAO , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO
IPC分类号： F02G5/02 , F02G5/04 , F24H1/00
CPC分类号： Y02E20/14 , Y02T10/166
摘要： PROBLEM TO BE SOLVED: To improve the total heat efficiency without dissipating useless heat. SOLUTION: Waste heat from a gas engine 1 is recovered in a first heat exchanger 5, and when there is no need of supplying it to a heating load 2, a hot medium from the gas engine 1 is bypassed from the first heat exchanger 5 through a first bypass piping 7 to eliminate useless heat dissipation in the first heat exchanger 5. Further, a flow rate of the hot medium flowing through a second heat exchanger 12 is controlled to be mixed with a hot medium flowing through a second bypass piping 14, whereby return temperature of the hot medium to the gas engine 1 is lowered for prevention of supercooling.
摘要翻译：要解决的问题：提高总热效率，而不会耗散无用的热量。解决方案：在第一热交换器5中回收来自燃气发动机1的废热，并且当不需要将其供应到加热负载2时，来自燃气发动机1的热介质从第一热交换器5通过第一旁通管道7，以消除第一热交换器5中的无用的散热。此外，流过第二热交换器12的热介质的流量被控制为与流过第二旁通管道14的热介质混合，由此降低了向燃气发动机1的热介质的返回温度，以防止过冷。

4. 发明专利

JP2003074969A Hot-water storage type hot-water supplier 有权
标题翻译：热水储存型热水供应商
公开(公告)号：JP2003074969A
公开(公告)日：2003-03-12
申请号：JP2001262856
申请日：2001-08-31
申请人： Harman Kikaku:Kk , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ハーマン企画 , 西部瓦斯株式会社
发明人： SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO , HASHIZUME YASUTO , KAWACHI TOSHIHIRO , FUJIKAWA YASUSHI , FUJIMOTO YOSHIO , SAKIISHI TOMOYA
IPC分类号： F24H1/00 , F24H1/18
摘要： PROBLEM TO BE SOLVED: To improve the efficiency of a device by a method wherein the storage amount of hot-water in a hot-water storage tank will not become short with respect to an amount required actually and an excessive hot-water storage is prevented. SOLUTION: An operation control means H carries out remaining hot-water judging treatment based on the detecting information of remaining hot-water detecting means 25, 26. When the remaining hot-water does not exist, ordinary hot-water storage treatment for starting the operation of a heating means 3 is carried out at the ordinary operation starting time so that the hot-water storage amount in the tank 1 will become a set hot-water filling amount at the set time of hot-water filling. When the remaining hot-water exists, a necessary hot-water filling amount, smaller than the set hot-water filling amount, is obtained based on the detecting information of the remaining hot-water detecting means 25, 26 and the remaining hot-water storage treatment for starting the operation of the heating means 3 is carried out at the remaining hot-water operation starting time so that the hot-water storage amount in the tank 1 will become the necessary hot-water filling amount at the set time of hot-water filling.
摘要翻译：要解决的问题：通过一种方法来提高装置的效率，其中热水储存箱中的热水的储存量相对于实际需要的量不会变短，并且防止了过多的热水储存。解决方案：操作控制装置H基于剩余热水检测装置25,26的检测信息进行剩余的热水判断处理。当不存在剩余的热水时，通常的热水储存处理在通常的运转开始时刻进行加热装置3的运转，使得罐1中的热水储存量在热水灌装的设定时刻成为设定的热水填充量。当剩余热水存在时，基于剩余的热水检测装置25,26的检测信息和剩余的热水获得比设定的热水填充量小的必要的热水填充量在其余热水运转开始时刻进行开始加热装置3的运转的储存处理，使得罐1中的热水储存量在热定型时刻成为必要的热水填充量 - 灌水。

5. 发明专利

JP2003028504A Hot water storage type water heater 有权
标题翻译：热水储水式加热器
公开(公告)号：JP2003028504A
公开(公告)日：2003-01-29
申请号：JP2001216104
申请日：2001-07-17
申请人： Harman Kikaku:Kk , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ハーマン企画 , 西部瓦斯株式会社
发明人： SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO , HASHIZUME YASUTO , KAWACHI TOSHIHIRO , FUJIKAWA YASUSHI , FUJIMOTO YOSHIO , SAKIISHI TOMOYA
IPC分类号： F24H1/18
摘要： PROBLEM TO BE SOLVED: To reduce the cost and improve the efficiency of an apparatus by supplying hot water at hot water heating target temperature while effectively utilizing hot water stored in a hot water storage tank. SOLUTION: Hot water heating means G is provided for supplying hot water at hot water supply target temperature by mixing water with hot water from a hot water storage tank 1 supplied through a hot water supply passage 6. Operation control means C executes an ordinary hot water supply processing for controlling the hot water supply means G such that water is mixed with hot water from the hot water regenerative tank 1 supplied through the hot water supply passage 6 to supply hot water when hot water supplied from the hot water regenerative tank 1 to the hot water supply passage 6 exceeds heating starting temperature defined taking the hot water supply target temperature as a reference. It further executes a mixing hot water supply processing for mixing hot water derived from an upper portion in the hot water regenerative tank 1 with hot water heated in the heating means 4 and supplying it to the hot water supply passage 6 for hot water supply when hot water supplied from the hot water regenerative tank 1 to the hot water supply passage 6 falls within a mixing temperature range between the heating starting temperature and mixing lower limit temperature lower than the former temperature.
摘要翻译：要解决的问题：通过在热水加热目标温度下供应热水来有效利用储存在热水储罐中的热水来降低成本并提高设备的效率。解决方案：提供热水加热装置G，用于通过将水与通过热水供应通道6供应的热水储存箱1的热水混合来供应热水供应目标温度的热水。操作控制装置C执行普通热水用于控制热水供应装置G的供应处理，使得水与来自通过热水供应通道6供应的热水再生罐1的热水混合，以便当从热水再生罐1供应的热水向热水供给通路6超过以热水供给对象温度为基准而定义的加热开始温度。进一步执行混合热水供给处理，用于将来自热水再生罐1中的上部的热水与加热装置4中加热的热水混合，并将其供应到热水供应通道6以供热水供应从热水再生罐1供给到热水供给路6的水落在比上一个温度低的加热开始温度和混合下限温度之间的混合温度范围内。

6. 发明专利

JP2003074976A Hot water storage type water heater 有权
标题翻译：热水储水式加热器
公开(公告)号：JP2003074976A
公开(公告)日：2003-03-12
申请号：JP2001262857
申请日：2001-08-31
申请人： Harman Kikaku:Kk , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ハーマン企画 , 西部瓦斯株式会社
发明人： SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO , HASHIZUME YASUTO , KAWACHI TOSHIHIRO , FUJIKAWA YASUSHI , FUJIMOTO YOSHIO , SAKIISHI TOMOYA
IPC分类号： F24H1/18
摘要： PROBLEM TO BE SOLVED: To supply a desired heat to a heat consumption terminal for a desired time zone by storing hot water in a hot water storage tank in a desired amount at a necessary time.
SOLUTION: An operation control means H executes a reservation hot water storage operation for storing hot water in the hot water storage tank 1 when it becomes a hot water storage starting time obtained based on a hot water storage time for setting the hot water storage amount in the tank 1 at the hot water storage setting time, and executes a heat supplying operation for supplying a fluid to be heated to the heat consumption terminal D for a heat consumption setting time zone. The control means H further obtains a hot water storage time as when a heating capability of a heating means is a non- limiting capability when a duplicate time zone to be duplicated with the heat consumption setting tine zone does not exist in the hot water storage time zone from the hot water storage starting time to the hot water storage setting time in the reservation hot water storage operation, and executes a hot water storage time calculating process for obtaining the hot water storage time as when the heating capability of the heating means is a smaller limiting capability than the non-limiting capability when the duplicating time zone exists.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：通过在必要的时间将热水以期望的量储存在热水储存箱中，以将期望的热量提供给所需时间的热消耗端子。解决方案：当操作控制装置H成为基于用于将热水储存量设定为热水储存时间的热水存储时间获得的热水储存开始时间时，执行用于将热水储存在热水储存箱1中的预约热水存储操作在热水储存设定时间的水箱1上，进行供热运转，将供热流体供给到用于热消耗设定时间的耗热端子D. 控制装置H进一步获得热水存储时间，如同在加热装置的加热能力为非限制性能时，当在热水储存时间内不存在与热消耗设定区域重复的重复时间区域时在预热热水存储操作中从热水存储开始时间到热水存储设置时间的区域，并且执行热水存储时间计算处理，以获得热水存储时间，如加热装置的加热能力为当复制时区存在时，限制能力比非限制性能要小。

7. 发明专利

JP2003028508A Heating apparatus 有权
标题翻译：加热装置
公开(公告)号：JP2003028508A
公开(公告)日：2003-01-29
申请号：JP2001216103
申请日：2001-07-17
申请人： Harman Kikaku:Kk , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ハーマン企画 , 西部瓦斯株式会社
发明人： SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO , HASHIZUME YASUTO , KAWACHI TOSHIHIRO , FUJIKAWA YASUSHI , FUJIMOTO YOSHIO , SAKIISHI TOMOYA
IPC分类号： F24H1/00 , F24H1/18 , F25B27/02
CPC分类号： Y02A30/274
摘要： PROBLEM TO BE SOLVED: To heat an object fluid to be heated to a target heating temperature, and prevent a returned hot medium from a heat exchange type heating section from being supercooled. SOLUTION: A heating apparatus is adapted such that operation control means G estimates third set temperature capable of heating an object fluid to be heated to a target heating temperature in the state where different heat exchange characteristics are considered in response to a relationship among first set temperature, and second set temperature where the object fluid can be heated to the target heating temperature and is capable of keeping the return hot medium temperature from a heat exchange heating section 19 beyond supercooling set temperature, and preheating temperature of the object temperature, and target heating temperature, and when detected temperature by forward hot medium temperature detection means 22 is beyond the first set temperature, second set temperature, and third set temperature, judges that heating allowable conditions are satisfied, and allows the supply of a hot medium to the heat exchange heating section 19, and further estimates the third set temperature when the detected temperature by the forward hot medium temperature detection means 22 is beyond the first set temperature and the second set temperature.
摘要翻译：要解决的问题：将待加热的物体加热到目标加热温度，并且防止从热交换型加热部返回的热介质过冷。解决方案：加热装置适于使得操作控制装置G估计在能够响应于第一设定温度之间的关系考虑不同热交换特性的状态下能够将要加热的物体流体加热到目标加热温度的第三设定温度以及第二设定温度，其中对象流体可以被加热到目标加热温度，并且能够将来自热交换加热部分19的返回热介质温度保持超过过冷却设定温度，以及目标温度的预热温度温度，当通过正向热介质温度检测装置22的检测温度超过第一设定温度，第二设定温度和第三设定温度时，判断为满足加热容许条件，并且允许向热交换器供应热介质加热部分19，并进一步估计第三设定温度在正向热介质温度检测装置22的检测温度超过第一设定温度和第二设定温度。

8. 发明专利

JP2003028506A Regenerative hot water heating apparatus 有权
标题翻译：再生热水加热装置
公开(公告)号：JP2003028506A
公开(公告)日：2003-01-29
申请号：JP2001216102
申请日：2001-07-17
申请人： Harman Kikaku:Kk , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , 大阪瓦斯株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ハーマン企画 , 西部瓦斯株式会社
发明人： SUZUKI KIWAMU , TANOGASHIRA KENICHI , YAMAGUCHI KAZUYA , KASHIWABARA YOSHITAKA , IWATA SHIN , TAKIMOTO KEIJI , TAKAGI HIROSHI , MATSUMOTO KAZUHIRO , HASHIZUME YASUTO , KAWACHI TOSHIHIRO , FUJIKAWA YASUSHI , FUJIMOTO YOSHIO , SAKIISHI TOMOYA
IPC分类号： F24H1/18
摘要： PROBLEM TO BE SOLVED: To improve the efficiency of an apparatus by supplying much hot water stored in a regenerative hot water tank to the utmost while preventing hot water from being exhausted.
SOLUTION: Operation control means G, when supplying hot water in a regenerative hot water tank 1 controls the present amount of hot water stored in the regenerative hot water tank 1 less than the minimum amount of detected stored hot water based upon the amount of hot water stored in the regenerative hot water tank to which a large amount of the minimum detected stored hot water to which the hot water stored in the hot water tank 1 is supplied from a timing of the minimum detection where the amount of stored in the regenerative hot water tank 1 is the minimum amount of the detected hot water larger than the minimum secured amount. The operation control means G, when the present amount of stored hot water reaches less than the minimum secured amount, executes a judgement processing which judges heating conditions being satisfied, and once the heating conditions are satisfied, heats hot water circulated with hot water circulation means E to hot water at hot water storage set temperature in heating means 4, and stores the hot water in the hot water regenerative hot water tank 1 in the state where a temperature forming layer is formed, and further supplies the hot water stored in the regenerative hot water tank 1 through the hot water supply passage.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提高设备的效率，通过在防止热水被排出的同时最大限度地供给储存在蓄热式热水箱中的大量热水。解决方案：操作控制装置G在再生热水箱1中供应热水时，基于热水量控制存储在蓄热式热水箱1中的热量低于检测到的最低储存热水量的当前量存储在蓄热式热水箱中，从存储在再生式热水中的最小检测量的时刻到供给存储在热水箱1中的热水的最少检测到的存储热量的大量的蓄热式热水箱罐1是检测到的热水的最小量大于最小固定量。操作控制装置G当存储的热水量达到小于最小固定量时，执行判断加热条件满足的判断处理，一旦满足加热条件，就加热热水循环装置 E以加热装置4的热水储存设定温度为热水，在形成有温度形成层的状态下将热水储存在热水再生热水箱1中，进一步供给再生热水箱1通过热水供应通道。

9. 发明专利

JP2006064326A Heat source controller 有权
标题翻译：热源控制器
公开(公告)号：JP2006064326A
公开(公告)日：2006-03-09
申请号：JP2004249657
申请日：2004-08-30
申请人： Noritz Corp , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ノーリツ , 西部瓦斯株式会社
发明人： HASHIZUME YASUTO , OTA HIROSHI , FUJIKAWA YASUSHI , ARAI TATSURO , IWATA SHIN , TOMIO TAKESHI , YAGI MASAHIKO , TAKIMOTO KEIJI , TAKAGI HIROSHI , YOSHIDA SATORU
IPC分类号： F24H1/00 , F24D17/00
摘要： PROBLEM TO BE SOLVED: To provide a heat source controller having high energy efficiency of the whole heat system and allowing further energy-saving by accurately predicting used heat quantity. SOLUTION: This heat source controller has: a reference value storage means 12 storing a reference prediction value of heat quantity consumption in each period, in each period; a heat quantity consumption confirmation means 10 confirming actual heat quantity consumption in each period; and an operation plan preparation means 13 preparing an operation plan on the basis of the reference prediction value stored in the reference value storage means 12. When operating a heat source, the operation plan preparation means 13 compares the actual heat quantity consumption in the preceding period and the corresponding reference prediction value, and prepares the operation plan by use of a value obtained by correcting the reference prediction value under a prescribed condition. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种整个热系统具有高能量效率的热源控制器，并通过精确地预测使用的热量来进一步节能。解决方案：该热源控制器具有：参考值存储装置12，其在每个周期中存储每个周期中的热量消耗的参考预测值; 确认各期间的实际热量消耗量的热量消耗确认单元10; 以及基于存储在参考值存储装置12中的参考预测值来准备操作计划的操作计划准备装置13.操作热源时，操作计划准备装置13将前一周期中的实际热量消耗和相应的参考预测值，并且通过使用通过在规定条件下校正参考预测值而获得的值来准备操作计划。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2004125301A Hot water storage type water heater 有权
公开(公告)号：JP2004125301A
公开(公告)日：2004-04-22
申请号：JP2002291189
申请日：2002-10-03
申请人： Noritz Corp , Osaka Gas Co Ltd , Seibu Gas Co Ltd , Toho Gas Co Ltd , 大阪瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社ノーリツ , 西部瓦斯株式会社
发明人： IWATA SHIN , TAKIMOTO KEIJI , YOSHIMURA MASAHIRO , TAKAGI HIROSHI , YOSHIDA SATORU , HASHIZUME YASUTO , FUJIKAWA YASUSHI , KAWAMURA KOJI , KAWACHI TOSHIHIRO , FUJIMOTO YOSHIO , ARAI TATSURO , TANIMURA YOSHITAKA
IPC分类号： F24H1/18 , F24D3/10
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of vibration and noise by the mixing of air even if air is mixed in hot water circulating in a circulation circuit for output by separating the air rapidly from the hot water and discharging to the outside. SOLUTION: This hot water storage type water heater comprises a hot water storage tank 1 having air bleeding means 8 and 9 installed at the upper part thereof and having a hot water take-out passage 19 connected to the bottom part thereof, a circulation circuit E for heating the hot water taken out from the hot water take-out passage 19 and returning the hot water to the upper part of the hot water storage tank, and the circulation circuit F for output radiating heat from the heated hot water. An air separator 21 is disposed on the lower side of the hot water storage tank 1 through the circulation circuit F for output, the hot water take-out passage 19 is connected to the upper part of the air separator 21, and the circulating upstream side of the circulation circuit F for output is connected to the air separator 21 on the lower side of the connected portion of the hot water take-out passage 19 and the circulation downstream side thereof is connected to the air separator 21 on the lower side of the circulation upstream side connected portion. COPYRIGHT: (C)2004,JPO

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