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1. 发明专利

JP2001174058A HOT-WATER SUPPLIER AND ITS FAILURE DIAGNOSIS BACK-UP DEVICE 失效
公开(公告)号：JP2001174058A
公开(公告)日：2001-06-29
申请号：JP35841899
申请日：1999-12-17
申请人： NORITZ CORP , TOKYO GAS CO LTD
发明人： OSHIO TADAHIKO , HATAKE YOJI , FUJII HIRONOBU , MATSUMURA SATORU , KIMURA KOJI , MORIKAWA KENJI , KUWABARA HIROKAZU , NAKAJIMA YOSHIHIDE , KISHIMOTO TOMOKI , KUBOYA YOSHIKANE , HAMADA MAKOTO , FUJIWARA KATSUHIRO , YOSHIDA AKIRA , IMAI TOMOHIRO , KATAOKA HISATO , YONEDA IWAO , HAMAYA YOSHIKAZU , ASAWA YASUHISA , ISHIMOTO MASA , MORITA SATORU
IPC分类号： G05B23/02 , F24H1/10 , H01T13/58 , G01M19/02
摘要： PROBLEM TO BE SOLVED: To enable a failure diagnosis back-up device which performs the function of communicating with a hot-water supplier to also perform the function of diagnosing the failure of the thermal valve of the hot-water supplier and the failure, etc., of hot water heating equipment. SOLUTION: The failure diagnosis back-up device 1 is constituted communicably with the control section 21 of the hot-water supplier through an interface device 2. The device 1 stores a sequence necessary for the diagnosis of the failure, etc., of the thermal valve of the supplier 2 and transmits an operation command to the supplier 2 based on the sequence. The device 1 also obtains the information on the operating state of the supplier 2 from communication and the inputting operation to an input means 14 and diagnoses the presence/ absence of a failure following the stored sequence based on the information.

2. 发明专利

JP2001108250A METHOD FOR DETECTING FLOW RATE OF HOT WATER HEATER, HOT WATER HEATER AND DIAGNOSTIC APPARATUS 失效
公开(公告)号：JP2001108250A
公开(公告)日：2001-04-20
申请号：JP28781399
申请日：1999-10-08
申请人： NORITZ CORP , TOKYO GAS CO LTD
发明人： OSHIO TADAHIKO , HATAKE YOJI , FUJII HIRONOBU , HAMADA MAKOTO , MATSUMURA SATORU , KIMURA KOJI , MORIKAWA KENJI , FUJIWARA KATSUHIRO , KUWABARA HIROKAZU , NAKAJIMA YOSHIHIDE , KATAOKA HISATO , YOSHIDA AKIRA , KUBOYA YOSHIKANE , KISHIMOTO TOMOKI , IMAI TOMOHIRO , ASAWA YASUHISA , ISHIMOTO MASA
IPC分类号： G01M99/00 , F24D3/00
摘要： PROBLEM TO BE SOLVED: To detect flow rate at the low temperature terminal of a hot water heater by an inexpensive method insusceptible to aging and to provide a hot water heater, and a diagnostic apparatus therefore, in which abnormal conduction of the low temperature terminal can be determined easily. SOLUTION: Flow rate Q2 of a low temperature terminal c is determined not through a direct detecting means, e.g. a flow sensor, but from an water temperature T1 detected by a temperature sensor 2, the flow rate Q1 of a constant flow rate bypass channel f, an water temperature T2 detected by a temperature sensor 3, and an water temperature T3 detected by a temperature sensor 4, according to a formula; Q2=Q1×(T1-T3)/(T3-T2). A decision is made whether the operated flow rate of the low temperature terminal c is appropriate or not using the control section 5 of a hot water heater 1 or an external diagnostic apparatus.

3. 发明专利

JPH11287440A COMBUSTION EQUIPMENT 失效
公开(公告)号：JPH11287440A
公开(公告)日：1999-10-19
申请号：JP10540498
申请日：1998-03-31
申请人： NORITZ CORP
发明人： TAMURA AKIHIKO , IMAI TOMOHIRO , TATSUMURA TOSHIYA
IPC分类号： F23N5/24 , F24H1/10
摘要： PROBLEM TO BE SOLVED: To reliably perform an antifreezing by means of heating by a heater by providing a temperature control switch which controls an operation to a power source line from an upstream of a breaker to antifreezing means. SOLUTION: When an electric leakage breaker 30 is not operated, a change- over switch 33 is connected to a contact A side by a control part 10 and a heat quantity of a heater 22 is adjusted by a temperature adjustment control switch 34. On the other hand, when the electric leakage breaker 30 is operated, the change-over switch 33 is connected to a contact B side. So long as the breaker 30 is being operated, although electricity is not supplied to a power source line 41 and hence, a combustion equipment is not operated, a power source line 40 at the upstream side of the breaker 30 supplies electricity to the heater 22, the temperature adjustment control switch 35 and the like. Furthermore, the temperature adjustment control switch 35 adopts a bimetal method and is turned on when the temperature is lowered and is turned off when the temperature is elevated thus performing an ON operation or an OFF operation of the heater 22. Accordingly, even when the electric leakage breaker 30 is operated, the heater 22 is energized thus preventing the antifreezing.

4. 发明专利

JPH11182923A REHEATING DEVICE 失效
公开(公告)号：JPH11182923A
公开(公告)日：1999-07-06
申请号：JP7127798
申请日：1998-03-04
申请人： NORITZ CORP
发明人： TAMURA AKIHIKO , IMAI TOMOHIRO , YOSHIMOTO ATSUSHI , KIMURA HIROSHI , TAKEHATA TAKASHI , ASANO MASAAKI , NAKAJIMA YOSHIHIDE , NAKANISHI YASUO , HORI NORIHIRO , TANAKA HIROAKI , MAEKAWA AKIRA
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To enable a reheating derive provided with a reheating circuit for reheating bath to exhibit its reheating function as much as possible while securing safety. SOLUTION: A reheating device is provided with a reheating circuit 32 for reheating bath and the circuit 32 is constituted in such a way that a by-pass path 38 is connected in parallel with a heat exchanger 36 for reheating; a circulating pump 44 for forced circulation, a water flow switch 46 which detects the presence/absence of water supply to the heat exchange 36 side, and a valve element 50 for adjusting the supplying amount of water to the heat exchanger 36 side are provided at halfway points of the circuit 32; and a by-pass valve 40 for adjusting the supplying amount of water is provided to the by-pass path 38. The reheating device is also provided with a control means which increases the supplying quantity of water to the heat exchanger 36 side when the water flow switch 46 is not turned on even when the circulating pump 44 is actuated in accordance with the operation of a switch for reheating bath.

5. 发明专利

JPH1114078A BATH HOT WATER FEEDER DEVICE WITH HEATING FUNCTION 失效
公开(公告)号：JPH1114078A
公开(公告)日：1999-01-22
申请号：JP18183097
申请日：1997-06-24
申请人： NORITZ CORP
发明人： KISHIO KOJI , IMAI TOMOHIRO , ZUSHI YOSHIHIRO , KATAOKA HISATO , TATSUMURA TOSHIYA , KUWABARA HIROKAZU , KIMURA KOJI
IPC分类号： F24D3/08
摘要： PROBLEM TO BE SOLVED: To suppress occurrence of decay in water by a method wherein a water feeding three-way changing-over valve is changed over to cause a water falling pipe to communicate with a returning pipe returning to a heat exchanger, a hot water discharging three-way changing-over valve is changed over to cause a going pipe to communicate with a supply pipe, thereafter a water falling operation is carried out to replace circulating water within a heating circuit with tap water. SOLUTION: When an operation for replacing circulating water in a heating circuit is started, a second water feeding three-way changing-over valve 11 is changed over and a water falling communication pipe 12 communicates with a bath water returning communication pipe 91. Then, a first water feeding three-way changing-over valve 6 is changed over to cause the bath water returning communication pipe 91 to communicate with a returning pipe 3 and further a hot water discharging three-way changing- over valve 41 is changed over to cause a going pipe 4 to communicated with a supply pipe 8 connected to a heating load such as a radiator or the like, thereby a water amount adjusting valve 22 and a water falling valve 13 in a hot water discharging pipe 19 for general hot water feeding are opened, a circulating pump 5 is driven and the circulating water within the heating circuit is replaced with clean tap water.

6. 发明专利

JPH10110867A THROUGH-WALL PIPING UNIT 失效
公开(公告)号：JPH10110867A
公开(公告)日：1998-04-28
申请号：JP28331196
申请日：1996-10-03
申请人： HOKKAIDO GAS KK , NORITZ CORP
发明人： AOKI TORU , TAMURA AKIHIKO , IMAI TOMOHIRO , KIMURA HIROSHI
IPC分类号： F16L5/00
摘要： PROBLEM TO BE SOLVED: To provide a through-wall piping unit that can lay piping piercing a wall positively, firmly and stably and perform piping construction at a through-wall part easily on a specified construction quality level or higher without dispersion of every construction while having no adverse effect of dew condensation and the like on the through-wall part pierced with a pipe and its periphery without bringing over influence of outside air to the indoor side. SOLUTION: A through-wall piping unit U fitted into a piping wall through-wall hole 1 formed in a wall W of a house or the like so as to become a connecting joint of internal-external piping has a fitting cylindrical body 10 consisting of a cylindrical part 11 insert-fitted in the through-wall hole 1, and a collar part 12 formed at one end of the cylindrical part 11 so as to come in contact with one side wall surface of the through-wall hole 1; a heat insulating core body 20 fitted into the cylindrical part 11 of the fitting cylindrical body 10; and joint pipes 40 having short through-pipe parts 41 piercing the inside of the heat insulating core body 10, and joint parts 42 provided at both ends. The heat insulating core body 20 is made a pair of split modes 20a, and split grooves 24 for passing the joint pipes 40 are formed at the split faces of the split molds 20a.

7. 发明专利

JPH1047669A COMBUSTION APPARATUS 失效
公开(公告)号：JPH1047669A
公开(公告)日：1998-02-20
申请号：JP22433796
申请日：1996-08-06
申请人： NORITZ CORP
发明人： TAMURA AKIHIKO , IMAI TOMOHIRO
IPC分类号： F23N3/08 , F23N5/02 , F23N5/24
摘要： PROBLEM TO BE SOLVED: To secure the exhaust condition favorably even in the case that snow piles up in the vicinity of an exhaust port, by operating a blower fan at least thereby blowing air to outside from an exhaust port when a temperature sensor detects a specified temperature or lower. SOLUTION: In the case that a combustion apparatus is used in a cold region, a maintenance control means 23 monitors the detection temperature of a temperature sensor 16, and judges whether or not the detected temperature is a specified temperature of lower. Then, if it is the specified temperature of lower, next a timer means 24 starts a timer, and operates a fan 6 until it counts a specified time, and also an ignition control means 21 is activated to perform combusting operation. Hereby, hot blast is sent from an exhaust port 15, so even in the case that snow piles up near the exhaust port, the hot blast blows off or melts and removes the piled snow.

8. 发明专利

JPH09329356A HOT-WATER-FEEDING DEVICE OF OUTDOOR INSTALLATION TYPE 失效
公开(公告)号：JPH09329356A
公开(公告)日：1997-12-22
申请号：JP16849496
申请日：1996-06-07
申请人： NORITZ CORP
发明人： IMAI TOMOHIRO , TAMURA AKIHIKO , MORIWAKI HIDEHITO , KIMURA HIROSHI
IPC分类号： F24H1/10 , F24H9/02
摘要： PROBLEM TO BE SOLVED: To prevent closure of a suction port formed in a front cover by a method wherein a heater for melting snow is arranged in the vicinity of the inner suction port of the front cover. SOLUTION: A rainproof board 15 is arranged at the inside of a front cover 11a of a device case 11 and further, a heater 20 for melting snow is arranged at the rainproof board 15. The heater 20 for melting snow is arranged in the vicinity of an inner suction port 13 of the front cover 11a. Further, an atmosphere temperature sensor 30 is provided at the inner lower part of the device case 11. It is decided by a controller 40 whether the temperature of an atmosphere temperature sensor 30 is below 0 deg.C or not. When the temperature is above 0 deg.C, the heater 20 for melting snow is brought into an OFFstate. Further, when it is below 0 deg.C, it is decided by the controller 40 that the state is continued further for a given time. If YES, the heater 20 for melting snow is turned ON for a given time.

9. 发明专利

JPH09329353A HOT WATER HEATER 失效
公开(公告)号：JPH09329353A
公开(公告)日：1997-12-22
申请号：JP16849596
申请日：1996-06-07
申请人： NORITZ CORP
发明人： IMAI TOMOHIRO , TAMURA AKIHIKO
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To provide a hot water heater in which a common hot water supply installation other than the hot water heater and a bath additional heating installation are prevented from being frozen owing to an influence to atmospheric temperature due to heating operation when in a cold district the heating operation of the hot water heater is performed continuously over a long period of time. SOLUTION: The present hot water heater includes in combination of any one or both of a common hot water supply installation 20 and a bath additional heating installation 30 other than a warm water heating installation 10. In the course of continuation of the warm water heating operation, even when temperature detected by an atmospheric temperature sensor 40 disposed on an apparatus case 1 is not less than a reference temperate where an antifreezing operation is performed, these is provided a control part 50 which forces an antifreezing operation of the other installations 20, 30 for a predetermined time interval each time the warm water heating operation passes for a predetermined time.

10. 发明专利

JPH0953750A DETECTION OF ABNORMALITIES IN THREE-WAY CHANGE-OVER VALVE 失效
公开(公告)号：JPH0953750A
公开(公告)日：1997-02-25
申请号：JP22457995
申请日：1995-08-10
申请人： NORITZ CORP
发明人： ZUSHI YOSHIHIRO , KAWAUCHI KAZUYA , OTA HIROSHI , IMAI TOMOHIRO , ICHITSUBO NOBUNORI , KUWABARA HIROKAZU
IPC分类号： F16K31/04 , F16K37/00
摘要： PROBLEM TO BE SOLVED: To provide a method for detecting abnormalities in a three-way change-over valve, which self-diagnoses the presence of abnormalities like the breakage of a signal line while enabling the change-over to be used normally when one of a heater side circuit or bathtub side circuit is normal even if the other is failured. SOLUTION: When a heater running command is inputted, a change-over relay (c) is changed over to the bathtub side contact (b) side to open the heater side contact (a) and close the bathtub side contact (b), so that electric power is supplied to the bathtub side contact (b) through the change-over relay (c). When an operation signal is not outputted between the fixed side contact side connecting line (f) and operation signal line (e), the operation signal line (e) is judged to have the failure of breakage or the like. When the operation signal is outputted, the bathtub side contact (b) is opened and the heater side contact (a) is closed. When the bathtub side contact (b) opened in a preset time is detected, the bathtub side operation circuit is judged to be normal. Next, the heater side operation circuit is similarly judged with respect to whether or not it is normal.

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