-
公开(公告)号：US20180372343A1
公开(公告)日：2018-12-27
申请号：US16012829
申请日：2018-06-20
申请人： NORITZ CORPORATION
发明人： Rena Kusachi , Yoshifumi Atobe , Naoki Tsuda , Keiichiro Iwanami , Hiroshi Morimoto , Akihisa Kageyama , Takehito Yokoyama , Midori Yokoyama
摘要： When a hot water supply operation is started, a single mode is used in which hot water is output only from a second hot water supply circuit of a water heater, by cut-off of a flow path in a first hot water supply circuit of a space-heating water heater by a cut-off mechanism. When a load imposed by hot water supply by the second hot water supply circuit increases during the hot water supply operation in the single mode, the cut-off mechanism is opened to start hot water output from the first hot water supply circuit and a hot water supply operation in a parallel mode is performed in which hot water is output from both of the first hot water supply circuit and the second hot water supply circuit.
-
公开(公告)号：US11262774B2
公开(公告)日：2022-03-01
申请号：US15983114
申请日：2018-05-18
申请人： NORITZ CORPORATION
摘要： When a voltage signal is input to input terminals as a positive voltage, the voltage conversion circuit generates a control voltage proportional to an input voltage by a voltage-dividing circuit according to resistance elements, a voltage follower circuit according to an operational amplifier, and a voltage-dividing circuit according to resistance elements. When a voltage signal is input to the input terminals as a negative voltage, since the operational amplifier outputs a power supply voltage according to an input of the negative voltage, the voltage conversion circuit generates a predetermined positive voltage obtained by dividing the power supply voltage by the resistance elements as the control voltage. The predetermined positive voltage is higher than a voltage range of the control voltage when the voltage signal is input as the positive voltage.
-
公开(公告)号：US11549692B2
公开(公告)日：2023-01-10
申请号：US16629962
申请日：2018-07-13
申请人： NORITZ CORPORATION
摘要： A heating and hot water supply system includes: a combustion means; a heat exchanger; a heating terminal; a circulation passage that connects the heat exchanger and the heating terminal; a circulation means; a bypass passage branched from the circulation passage and bypassing the heating terminal; a distribution means for distributing a heating medium to the circulation passage and the bypass passage; a hot water supply heat exchanger for the bypass passage; and a hot water supply passage; wherein the distribution means can adjust the distribution ratio so as to correspond to a heating operation, a hot water supply operation, and a simultaneous heating and hot water supply operation, and when the distribution ratio on the circulation passage side of the distribution means is smaller than a prescribed value during the simultaneous heating and hot water supply operation, the blowing operation of the blower at the heating terminal is prohibited.
-
公开(公告)号：US10852036B2
公开(公告)日：2020-12-01
申请号：US16032082
申请日：2018-07-11
申请人： NORITZ CORPORATION
发明人： Naoki Tsuda , Yoshifumi Atobe , Hiroshi Morimoto
摘要： A distribution valve controls a distribution ratio of a heat transfer medium between a hot water supply path including a heat exchanger for hot water supply and a beating circulation path through which the heat transfer medium is supplied to a heating terminal. A bypass flow rate control valve controls a bypass ratio which is a ratio of a flow rate of low temperature water introduced into a bypass pipe that bypasses the heat exchanger for hot water supply to a flow rate of low temperature water introduced into a water inlet pipe. The bypass ratio is regulated so that a hot water temperature detected by a temperature sensor reaches a hot water target temperature. During a simultaneous operation of hot water supply and heating, the distribution valve is controlled so that, when a bypass ratio is low, a distribution ratio is higher than when a bypass ratio is high.
-
公开(公告)号：US11149965B2
公开(公告)日：2021-10-19
申请号：US16012829
申请日：2018-06-20
申请人： NORITZ CORPORATION
发明人： Rena Kusachi , Yoshifumi Atobe , Naoki Tsuda , Keiichiro Iwanami , Hiroshi Morimoto , Akihisa Kageyama , Takehito Yokoyama , Midori Yokoyama
摘要： When a hot water supply operation is started, a single mode is used in which hot water is output only from a second hot water supply circuit of a water heater, by cut-off of a flow path in a first hot water supply circuit of a space-heating water heater by a cut-off mechanism. When a load imposed by hot water supply by the second hot water supply circuit increases during the hot water supply operation in the single mode, the cut-off mechanism is opened to start hot water output from the first hot water supply circuit and a hot water supply operation in a parallel mode is performed in which hot water is output from both of the first hot water supply circuit and the second hot water supply circuit.
-
公开(公告)号：US11255550B2
公开(公告)日：2022-02-22
申请号：US16629960
申请日：2018-07-13
申请人： NORITZ CORPORATION
摘要： Provided is a heating and hot water supply device. The heating and hot water supply device includes: a combustion part; a heat exchanger; a circulation passage; a circulation part; a bypass passage; a distribution means for distributing the heating medium to the circulation passage and the bypass passage; a hot water supply heat exchanger; a water supply passage; and a hot water supply passage (21). The distribution ratio of the distribution means is adjustable so as to correspond to a heating operation, a hot water supply operation, and the simultaneous heating and hot water supply operation. The heating and hot water supply device includes an operation part, which heats the heating medium to one or more heating terminal setting temperatures and circulates the heating medium, and switches a setting of the one or more heating terminal setting temperatures to be increased by a prescribed temperature during the simultaneous heating and hot water supply operation.
-
公开(公告)号：US10969142B2
公开(公告)日：2021-04-06
申请号：US16033232
申请日：2018-07-12
申请人： NORITZ CORPORATION
发明人： Naoki Tsuda , Yoshifumi Atobe , Kenichi Nakayama
摘要： In a heating and hot water supply apparatus, a heat exchanger for hot water supply includes a primary-side path and a secondary-side path. A bypass path branches from a heating circulation path and is configured such that a heat transfer medium heated by a heating device flows through the primary-side path without passing through a heating terminal when hot water supply operation is performed and then joins the heating circulation path again. A control unit controls a flow rate regulating valve so that a hot water flow rate does not exceed a reference limit flow rate when hot water supply operation is performed. The reference limit flow rate is set on the basis of the smaller one between a maximum heating capacity of the heating device and a heating capacity of the heating device at which an output temperature of the heated heat transfer medium reaches an upper limit temperature.
-
-
-
-
-
-
搜索结果
7 条记录 (耗时 0.017 秒)
