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1. 发明专利

JP2008057814A Gas hot water supply apparatus 有权
标题翻译：燃气热水设备
公开(公告)号：JP2008057814A
公开(公告)日：2008-03-13
申请号：JP2006233064
申请日：2006-08-30
申请人： Noritz Corp , Noritz Electronics Technology Kk , ノーリツエレクトロニクステクノロジー株式会社 , 株式会社ノーリツ
发明人： KONISHI DAISUKE , KANAYAMA YOSHIHIKO , ISHIZUNO MASAMITSU , MORI MASAHIRO
IPC分类号： F23N5/24 , F23N1/02 , F24H1/10
摘要： PROBLEM TO BE SOLVED: To provide a gas hot water supply apparatus, achieving accurate combustion characteristic to some degree while simple control is adopted, and exhibiting the original maximum output number even under the exhaust resistance.
SOLUTION: Increase in exhaust resistance is detected according to a change in load current value of a fan motor, and the rotating speed of the fan motor is increased by predetermined amount each. As an upper limit to an output number computed value (S11) obtained by adding an FB control number to FF control number, from the original preset maximum output number, a number obtained by multiplying the up count of the fan rotating speed by a predetermined increase number is added to the preset maximum output number to obtain an enlarged change number, and it is changed to the enlarged change number (S12-S14). On the other hand, the preset maximum flow rate value (24 L/min) which is the upper limit value to the maximum flow (S21) in control, computed based on a temperature difference between the preset hot water delivery temperature and the inlet water temperature, is maintained as it is normal without exhaust resistance (S22-S24).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种气体热水供应装置，在采用简单的控制的情况下，在一定程度上实现准确的燃烧特性，并且即使在排气阻力下也呈现原始的最大输出数。
解决方案：根据风扇电动机的负载电流值的变化来检测排气阻力的增加，并且风扇电动机的转速各自增加预定量。作为通过将FB控制数与FF控制数相加而获得的输出数计算值（S11）的上限，从原来的预设最大输出数，将通过将风扇转速的向上计数乘以预定增加而获得的数数字被添加到预设的最大输出数，以获得放大的改变号，并将其改变为放大的改变号（S12-S14）。另一方面，基于预设的热水输送温度和入口水之间的温度差计算出的作为控制中的最大流量的上限值（S21）的预设最大流量值（24L / min）温度保持原样，无排气阻力（S22-S24）。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2001235143A METHOD FOR JUDGING COMBUSTION ABNORMALITY COMBUSTION EQUIPMENT 失效
公开(公告)号：JP2001235143A
公开(公告)日：2001-08-31
申请号：JP2000044885
申请日：2000-02-22
申请人： NORITZ CORP
发明人： TSUTSUMI AKIRA , KANAYAMA YOSHIHIKO , AOKI ISAO
IPC分类号： F23N5/00 , F23N5/24
摘要： PROBLEM TO BE SOLVED: To provide a method for judging combustion abnormality in combustion equipment that can reliably prevent the generation of indoor contamination and at the same time improve the ease of use of the combustion equipment. SOLUTION: In a bath boiler with water heaters where a water heater with high combustion output is combined with a bath boiler with low combustion output, when only a bath-side combustion burner is in individual combustion operation, it is judged whether combustion failure for causing indoor contamination has occurred or not depending on whether a CO concentration detection value from a CO sensor has exceeded a first setting threshold Da or not for the first 15 minutes after combustion operation has started (steps S1-S4). In 15 minutes after the individual combustion operation has started, a setting threshold is changed to a second threshold value Db (Db

3. 发明专利

JPH1151371A TRANSPARENT WINDOW STRUCTURE IN BURNING APPLAINCE AND ITS MANUFACTURE 失效
公开(公告)号：JPH1151371A
公开(公告)日：1999-02-26
申请号：JP22065697
申请日：1997-07-31
申请人： NORITZ CORP
发明人： MITATE KYUJI , ICHITSUBO NOBUNORI , TONAI MASANORI , TSUTSUMI AKIRA , OBARA HIDEYA , AOKI ISAO , CHIKAMORI YOSHIHIRO , KANAYAMA YOSHIHIKO , KANESHIRO TAKANOBU
IPC分类号： F23M11/04 , F24H9/02
摘要： PROBLEM TO BE SOLVED: To provide a title structure wherein a transparent plate is prevented from becoming cloudy by preventing a falling water drop from adhering to the transparent plate, and a combustion state is satisfactorily checkd through a transparent window, and further the transparent plate is prevented from being damaged for long time use even when the transparent plate is constructed with a material quality that dislikes water. SOLUTION: A transparent window structure in a burning appliance is adapted such that an opening 10 formed in A case 7 in which combustion means is accomodated is closed with a transparent plate 13, and the transparent plate 13 is mounted on the case 7 using a mounting seat 15 having a smaller opening than the transparent plate 13 whereby a combustion state of the combustion means in the case 7 can be observed with a naked eye through the transparent plate 13. In the structure, there is provided reception means so as to be protruded from a case surfase for preventing a water drop falling from the case 7 from adhering to the transparent plate 13.

4. 发明专利

JPH1151484A BATH CIRCULATING DEVICE 失效
公开(公告)号：JPH1151484A
公开(公告)日：1999-02-26
申请号：JP21700297
申请日：1997-07-29
申请人： NORITZ CORP
发明人： MITATE KYUJI , TONAI MASANORI , AOKI ISAO , KANAYAMA YOSHIHIKO , CHIKAMORI YOSHIHIRO , OBARA HIDEYA , TSUTSUMI AKIRA , ICHITSUBO NAKAHIRO
IPC分类号： F24H1/46
摘要： PROBLEM TO BE SOLVED: To simplify the structure of a connecting section, reduce the weight of component parts, reduce the number of junction parts and improve air- tightness reliability. SOLUTION: One end of a hot water falling pipe 9 is communicated with a water chamber in a circulating pump 5, i.e., a positive pressure section of it, and there is provided a temperature keeping heater 14 arranged at the hot water falling pipe 9. When the hot water falling operation is carried out, hot water flows from the hot water falling pipe 9 into a circulating pump 5, passes from a bath return pipe 4 to a bath heat exchanger 3 and the water is supplied from a bath going-pipe 7 to the bath tub. During circulating and heating operations, a hot water falling valve 11 is closed, the circulating pump 5 is driven and the hot water is supplied from a bath returning pipe 4, a bath heat exchanger 3 and the bath going-pipe 7 to the bath tub. Since a negative pressure is applied to a check valve 10 in the hot water falling pipe 9 during circulating and heating operations, it is possible to perform a positive prevention of reverse- flow of hot water toward the bath heat exchanger at the time of circulation of hot water in the bath.

5. 发明专利

JP2001304681A DEVICE FOR PREVENTING FREEZING OF HOT-WATER APPARATUS 失效
公开(公告)号：JP2001304681A
公开(公告)日：2001-10-31
申请号：JP2000125391
申请日：2000-04-26
申请人： NORITZ CORP
发明人： KANAYAMA YOSHIHIKO , TSUTSUMI AKIRA
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To provide a device for preventing the freezing of a hot-water apparatus, which can reduce wasteful power consumption at execution of preventive freezing. SOLUTION: This is a freezing preventive device in a hot-water apparatus, and this has at least an electric heater 51 for prevention of freezing, actuated to prevent freezing at low temperature at or under a certain freezing prevention starting temperature, a temperature sensor 52 for prevention of freezing for detecting the air temperature at a place where the hot-water apparatus is installed the ambient temperature within the hot-water apparatus, or the water temperature within the pipe of the hot-water apparatus, and a water passage detection means 22 for detecting the quantity of passing water within the hot-water apparatus, and also this is provided with a controller 60 which takes in the data by the above water passage detection means 22, even if the main operation switch of the hot-water apparatus is set to off and will not perform current application to the electric heater for prevention of freezing, even if the temperature is at the freezing prevention starting temperature or under in the case that the quantity of passing water is judged to be at a certain reference flow rate or lower.

6. 发明专利

JP2000111152A METHOD OF INSPECTING WATER LEAKAGE OF HOT WATER SUPPLY DEVICE 失效
公开(公告)号：JP2000111152A
公开(公告)日：2000-04-18
申请号：JP29453198
申请日：1998-09-30
申请人： NORITZ CORP
发明人： KANAYAMA YOSHIHIKO , IMAI TOMOHIRO , SUYAMA HIDEYA , SHIMIZU MANABU , HAMADA MAKOTO , FUJIWARA KATSUHIRO , IKEZAWA TAKASHI , KOBARI NAOTO
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To provide such a method of inspecting the water leakage of a hot water supply device as to remove the erroneous judgment at inspection of water leakage such as that the remaining air expands or shrinks and that the user misjudges the inspection results in case that the remaining air exists within a pipe. SOLUTION: The erroneous judgment in the inspection of the water leakage is prevented by detecting the change of all or one part of the temperature of the outside air, the water temperature within the pipe, and the room temperature through the inspection of the water leakage of a hot water supply device, using all or one part of a temperature sensor T1 for detecting the temperature of outside air installed within the main body of the hot water supply device, a temperature sensor T2 for detecting the temperature of the hot water within a bathtub 10 installed within the circulating circuit of a bath, and a temperature T3 for detecting the indoor temperature installed in a heater 20 for heating of warm water, and by compensating the pressure within a closed circuit detected by the pressure sensor 5 by the degree of its change.

7. 发明专利

JPH06337111A GAS COMBUSTION DEVICE 失效
公开(公告)号：JPH06337111A
公开(公告)日：1994-12-06
申请号：JP14844993
申请日：1993-05-26
申请人： NORITZ CORP
发明人： OBARA HIROKI , TATSUMURA TOSHIYA , KUBOYA MASANORI , KANAYAMA YOSHIHIKO
IPC分类号： F23N1/00 , F23N5/24
摘要： PURPOSE:To provide a gas combustion device which causes no explosive ignition even when the device is operated after its operation has been stopped for a long period of time. CONSTITUTION:A gas combustion device has burner units 42, 52 for carrying out combustion, burner on/off valves 41, 51, a main on/off valve 10 for feeding gas from a gas feed source to the side of the burner on/off valves 41, 51 and for stopping the gas feed, and a diaphragm- type proportioning on/off valve 20 arranged at the intermediate portion of a gas passage 30 between the main on/off valve 10 and the burner on/off valves 41, 51. The diaphragm-type proportioning on/off valve 20 has a primary chamber 21 communicating with the gas passage from the side of the main on/off valve 10, a secondary chamber 22 communicating with the gas passage to the side of the burner on/off valves 41, 51, and a valve body 24 for increasing or decreasing an opening degree of a gas inlet port 23 with the aid of a diaphragm 27 according to an increase or a decrease of a gas pressure in the primary chamber 21. The operation of this gas combustion device is carried out in such a manner that the main on/off valve 10 is first opened for a short period of time before proceeding to an ignition operation, and the burner on/off valve 51 is then opened for a short period of time, thereupon the main on/off valve 10, the burner on/off valves 41, 51 and the diaphragm-type proportioning on/off valve 20 are continuously opened.

8. 发明专利

JP2001004136A IGNITION CONTROLLER FOR COMBUSTOR 失效
公开(公告)号：JP2001004136A
公开(公告)日：2001-01-12
申请号：JP17866799
申请日：1999-06-24
申请人： NORITZ CORP
发明人： IMAI TOMOHIRO , KATAOKA HISATO , TSUJI EIICHI , KISHIO KOJI , KANAYAMA YOSHIHIKO , OTA HIROSHI , MORIMOTO RYO , SUYAMA HIDEYA
IPC分类号： F23N5/24
摘要： PROBLEM TO BE SOLVED: To realize a satisfactory and secure ignition even in an initial ignition under non-stationary combustion environment such as unfavorable wind inflow and the like, and even in a reignition at the flame failure during continuous combustion. SOLUTION: When a combustor 2 is not ignited even by an ordinary ignition control means 6, and when a flame failure during continuous combustion is detected with a flame rod 7, a non-stationary judgement section 9 judges that a non-stationary combustion environment happens. After supply gas pressure and an air feed amount are increased and altered more than ordinary values by a supply degree alteration control section 10 after receiving the judgement, an igniter 5 is fired with an ignition control section 11. Ignition action is repeated several times. Post-purge time may be increased with a purge control section 12 every time. Additionally, the supply gas pressure and the feed air amount may be increased stepwise every time when the firing action is repeated.

9. 发明专利

JP2000146212A WATER LEAK INSPECTION METHOD FOR HOT WATER SUPPLY APPARATUS 失效
公开(公告)号：JP2000146212A
公开(公告)日：2000-05-26
申请号：JP32615798
申请日：1998-10-30
申请人： NORITZ CORP
发明人： IMAI TOMOHIRO , SUYAMA HIDEYA , KANAYAMA YOSHIHIKO
IPC分类号： F24D17/00
摘要： PROBLEM TO BE SOLVED: To ensure an optimal water leak inspection regardless of the position of a thermal valve provided in a pipeline extending from the inside of a hot water supply apparatus to a heating terminal unit by setting the position of the thermal valve freely on the hot water supply apparatus side or the heating terminal unit side and controlling open/close of the thermal valve depending on the setting content. SOLUTION: When water leak inspection is performed, a water volume servo valve 1 is closed at first while a makeup water valve 30 and a thermal valve 33 are opened and a heating circuit B is evacuated by driving a circulation pump 31. The drop valve 2 of a drop circuit D and the water volume servo valve 1 are then opened to supply a predetermined quantity of water from the drop circuit D toward a bath circuit C. When the water level in a bathtub 10 reaches a specified one, a circulation pump 3 is driven to circulate water through the bath circuit C. After the bath circuit C is evacuated, a water leak inspection jig 4 is fixed to a circulation metal 7 and the drop valve 2 is opened to pressurize a closed circuit with the supply city water. A pressure sensor 5 measures pressure in the closed circuit under that state and water leak is inspected based on the pressure variation.

10. 发明专利

JP2000009579A METHOD OF INSPECTING WATER LEAKAGE IN WARM WATER SUPPLY, METHOD OF PRESSURIZING IN PIPING, WATER LEAKAGE INSPECTING JIG AND METHOD OF IDENTIFYING PRESSURE SENSOR 失效
公开(公告)号：JP2000009579A
公开(公告)日：2000-01-14
申请号：JP19670498
申请日：1998-06-26
申请人： NORITZ CORP
发明人： KANAYAMA YOSHIHIKO , FUJIWARA KATSUHIRO , HAMADA MAKOTO , IKEZAWA TAKASHI , SHIMIZU MANABU , KOBARI NAOTO , IMAI TOMOHIRO , SUYAMA HIDEYA , KISHIO KOJI , TSUJI EIICHI , ARAI TATSURO
IPC分类号： G01M3/28 , F24D3/00
摘要： PROBLEM TO BE SOLVED: To quickly and surely pressurize a piping at a predetermined inspection pressure, irrespective of the variation of the feed water pressure to smoothly inspect the water leakage by closing a drop circuit to detect the pressure in the piping after opening the drop circuit for a specified time. SOLUTION: A first step of closing a drop circuit D to detect the pressure P in a piping after opening the drop circuit D for specified time T and then a second step of comparing the detected piping internal pressure P with a predetermined min. inspection pressure P1 and opening the drop circuit D for specified time T if the internal pressure P does not reach the min. inspection pressure P1 are executed. When the second step is repeated specified no. of times N because the internal pressure P does not reach the min. inspection pressure P1, the specified time T is extended. Thus it is possible to pressure up to required inspection pressure for the water leakage inspection of the piping for a short time, resolve the disadvantage that the drop circuit D never opens and avoid damage to the apparatus due to excessive pressures.

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