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1. 发明专利

JPH11337173A GAS WATER HEATER 失效
公开(公告)号：JPH11337173A
公开(公告)日：1999-12-10
申请号：JP14104598
申请日：1998-05-22
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , SAWADA MITSUO , HYODO TAKAHIKO
IPC分类号： F24H9/20 , F24H1/10
摘要： PROBLEM TO BE SOLVED: To detect the incomplete combustion of a gas burner more accurately. SOLUTION: This water heater is provided with a relatively high voltage output of thermocouple 3 which detects the combustion state of a gas burner 1, and a relatively low voltage output of heat exchanger 4 which detects the inside temperature of a heat exchanger 2. The output of both thermocouples 3 and 4 is inputted separately into filter circuits 21 and 22 so as to remove higher harmonic components. An operating part 24 seeks the difference being obtained by subtracting the output voltage of the filter circuit 22 from the output voltage of the filter circuit 21. A combustion state judger 24 judges that the gas burner 1 is in incomplete combustion when the output of the operating part 23 becomes smaller than the specified threshold, and shuts off the safety valve 15 supplying the gas burner with fuel gas.

2. 发明专利

JPH1114140A HOT-WATER SUPPLY 失效
公开(公告)号：JPH1114140A
公开(公告)日：1999-01-22
申请号：JP16419697
申请日：1997-06-20
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , ENOMOTO TAMOTSU , TANAKA MITSURU , TANAKA NAOKI , SATO ISAO , YASUKAWA MASAYOSHI
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To suppress the pressure rise inside a water supply channel and a hot-water supply channel, when water supply pressure is high without the need of an accumulator of high strength or a large size accumulator. SOLUTION: This equipment is provided with a single burner for heating a hot-water supplying heat exchanger and a re-heating heat exchanger, a hot water filling path 32 feeding hot-water from a hot water supply channel into a bath tub, a hot water filling opening and closing valve 33 for opening and closing the hot-water filling path, an air relieving chamber 38 connected to the hot-water filling path at the down stream of the hot-water filling opening and closing valve, connection switching means 40 and 41 for shutting between the hot-water filling path and the air relieving chamber along with the switching to the opening of the hot-water filling opening and closing valve and connecting between the hot-water filling path and the air relieving chamber along with the switching the to the closing of the hot-water filling opening and closing valve and a connecting means connecting between the hot-water supply channel and air relieving chamber at the single operation of the re-heating burning for heating filled warm water inside the bath. For suppressing the pressure rise inside the hot-water supplying channel at the single operation of the re-heating burning, the operation of the inter connecting means is controlled.

3. 发明专利

JPH10176863A HOT WATER SUPPLY DEVICE AND TEMPERATURE ADJUSTING METHOD 失效
公开(公告)号：JPH10176863A
公开(公告)日：1998-06-30
申请号：JP33551496
申请日：1996-12-16
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , ENOMOTO TAMOTSU , TANAKA MITSURU , IMAIDA HIRONAO , NAKANISHI NORIATSU , YASUKAWA MASAYOSHI
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To enable a hot water feeding to be carried out at a bathtub under an application of both heating sections in a high fuel efficiency at an accurate hot water feeding temperature and in a less amount of deposition of scale in a hot water feeding device having a single burner used commonly for heating a heating section for hot water supply and another heating section for bathtub water reheating. SOLUTION: Hot water is fed from a hot water supply heating section 11 to a predetermined location C within a going passage 6 and a returning passage 5 forming a circulating passage between a bathtub 23 and an additional boiling heating section 25, the flow is divided into two systems 50, 51 from the predetermined location C, only one system is passed through the bathtub water reheating heating section 25. There are provided a bathtub temperature calculating means for calculating a bathtub temperature Tc in response to a flow rate ratio R between both systems and hot water temperatures T1, T2 in a supply line 6 and a return line 5, and a control means for controlling the hot water supply temperature T1 at the hot water supply heating section 11 in such a way that the calculated bathtub temperature Tc calculated by the bathtub temperature calculating means and a predetermined set bathtub temperature Ts may be coincided with each other.

4. 发明专利

JP2000249096A CENTRIFUGAL BLOWER 失效
公开(公告)号：JP2000249096A
公开(公告)日：2000-09-12
申请号：JP4778999
申请日：1999-02-25
申请人： TAIHEIYO KOGYO KK , OSAKA GAS CO LTD , HARMAN CO LTD
发明人： ASADA SOICHIRO , HIBINO YASUSHIGE , HISHIDA YASUSHI , MORITA TETSUJI , NISHIGAKI MASASHI , KAMIYA HIROSHI
IPC分类号： F04D17/16 , F04D29/28 , F04D29/66
摘要： PROBLEM TO BE SOLVED: To reduce the generation of interference noise of a casing tongue part without decreasing blast performance. SOLUTION: This centrifugal blower comprises an electric motor C and a volute spiral casing 3 to contain a centrifugal multivane fan 2 to suck air through a bellmouth-form suction port 3a. The multivane fan 2 comprises a disc-form base plate 4; a top plate 5; a plurality of arcuate blades 6 arranged at the peripheral edge part of the base plate 4; and a middle partition plate 7 having the same size as the inside diameter of a multivane fan and provided between the base plate and the top plate 5. The blade 6 of the centrifugal multivane fan 2 is arranged such that a blade pitch position above the middle partition plate 7 is deviated from a blade pitch position below the middle partition plate 7.

5. 发明专利

JP2000146172A ABNORMALITY DETECTION DEVICE FOR COMBUSTION APPARATUS 失效
公开(公告)号：JP2000146172A
公开(公告)日：2000-05-26
申请号：JP31711798
申请日：1998-11-09
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , HYODO TAKAHIKO , SAWADA MITSUO
IPC分类号： F23N5/24 , F23D14/08
摘要： PROBLEM TO BE SOLVED: To provide an abnormality detection apparatus capable of surely detecting an abnormality of combustion as a whole burner even if spider nests are formed in one of two mixed gas supply parts or a mixed gas flow passage communicating with them or dust is accumulated. SOLUTION: In an abnormality detection device for a combustion apparatus having a burner B provided with mixed gas supply parts for supplying a mixed gas at both end parts in a row direction of a row of burner ports in a mixed gas flow passage communicating with the burner ports, combustion flame temperature detection means 17a, 17b for detecting temperatures of combustion flames of the burner B and an abnormality detection means C for detecting an abnormality of combustion of the burner B on the basis of detection information of the combustion flame temperature detection means 17a, 17b, the combustion flame temperature detection means 17a, 17b are installed at both sides in a center in a longitudinal direction of the row of the burner ports.

6. 发明专利

JP2000146165A FAULT DETECTOR FOR COMBUSTION EQUIPMENT 失效
公开(公告)号：JP2000146165A
公开(公告)日：2000-05-26
申请号：JP31711898
申请日：1998-11-09
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , HYODO TAKAHIKO , SAWADA MITSUO
IPC分类号： F23N5/24 , F23N5/02
摘要： PROBLEM TO BE SOLVED: To provide a fault detector for a combustion equipment capable of effectively detecting a combustion fault caused by an exhaust blocking even in the case of the exhaust blocking at either end side of both longitudinal ends of a cylindrical body and preventing a detection fault caused by adherence of soot as much as possible. SOLUTION: In the fault detector for a combustion equipment comprising a combustion chamber temperature detecting means 25 provided on an upper part of a flat cylindrical body 1 for forming a combustion chamber of a burner B by a heat exchanger 2 to be heated by the burner B to detect an ambient temperature in the chamber, and a fault detecting means C for detecting a combustion fault of the burner B based on detection information of the means 25, the means 25 is provided at a center or substantially a center of a section of the body 1 in a longitudinal direction.

7. 发明专利

JPH11173571A HEAT SOURCE DEVICE 失效
公开(公告)号：JPH11173571A
公开(公告)日：1999-06-29
申请号：JP34106097
申请日：1997-12-11
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , ENOMOTO TAMOTSU , TANAKA NAOKI , IMAIDA HIRONAO , NAKANISHI NORIATSU
IPC分类号： F24D3/08
摘要： PROBLEM TO BE SOLVED: To provide a heat source to shorten a time required for reheating of bath tube water as much as possible without increasing the size of a burner for reheating bathtub water. SOLUTION: A heat source device comprises a burner 7 for reheating bath tub water to heat a heat-exchanger 6a for reheating bathub water to heat hot water circulating through circulation passages 26 and 27 for reheating of bath tub water of a bath; and a burner 10 for heating to heat a heat exchanger 11 for heating to heat a heating medium for heating circulated through circulation passages 8 and 9 for heating a terminal machine T for heating. Heat recovering means 6b and 30 to feed hot water circulated through the circulation passages 26 and 27 for reheating bathtub water to recover heat generated by the burner 10 and feed the recovered heat to hot water circulated through the circulation passages 26 and 27 for reheating bathtub water are arranged in the circulation passages 26 and 27 for reheating bathtub water.

8. 发明专利

JPH10332200A COMBUSTION TYPE HEATING APPARATUS 失效
公开(公告)号：JPH10332200A
公开(公告)日：1998-12-15
申请号：JP14147497
申请日：1997-05-30
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , ENOMOTO TAMOTSU , IMAIDA HIRONAO , YONEZAWA NOBUTAKE , NAKANISHI NORIATSU , KONISHI DAISUKE
IPC分类号： F23N5/02 , F24H1/10
摘要： PROBLEM TO BE SOLVED: To prevent the temperature of a liquid to be heated in a heat exchanging part wherein flow stops from becoming too high in a partial operational condition. SOLUTION: This device is constructed in such a way that a liquid to be heated is supplied intermittently for each of two or more heat exchanging parts N1 and N2, both of which are provided in a combustion gas passage of a combustion burner 2 in a condition of being integrally formed to conduct heat to each other. In this case, a combustion control means BC which controls the combustion amount of the combustion burner 2 provides combustion to the burner 2, on the basis of detection information of a temperature defection means TS which detects the temperature of the liquid to be heated in an inlet pass Li or an outlet pass Lo of the heat exchanging part N2 wherein the liquid to be heated flows, in a partial operational condition wherein the liquid to be heated flows in the part of the two or more heat exchanging parts N1 and N2 while the liquid to be heated stops to flow in other parts, so that the temperature of the liquid to be heated inside the heat exchanging part wherein the flow of the liquid to be heated stops becomes a set temperature or lower.

9. 发明专利

JPH10281550A HOT WATER FEEDER DEVICE 失效
公开(公告)号：JPH10281550A
公开(公告)日：1998-10-23
申请号：JP9188097
申请日：1997-04-10
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , ENOMOTO TAMOTSU , TANAKA MITSURU , TANAKA NAOKI , YONEZAWA NOBUTAKE , SATO ISAO
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To attain a positive prevention of boiling of hot water within an additional boiling heat exchanger by a method wherein the heat exchanger is arranged in such a way that it may be changed over between a hot water discharging state in which air is supplied into the heat exchanger for additional boiling to discharge hot water in the additional boiling heat exchanger into a bath tub and a stopped state in which supplying of air into the additional boiling heat exchanger is stopped. SOLUTION: There are provided a hot water feeding heat exchanger 4 in which water flowed from a water supplying passage 1 is heated and hot water after heating is supplied to a hot water feeding passage 3 provided with a hot water feeding plug 2 at its extremity end; and an additional boiling heat exchanger 6 for heating hot water in a bath tub 5 and performing an additional boiling. These hot water feeding heat exchanger 4 and additional boiling heat exchanger 6 are constructed to be heated by a single gas burner 7. Then, the changing-over operation is carried out by an air supplying means with an additional boiling circulation pump 24 or a drain valve or the like to set a hot water discharging state for supplying air into the additional boiling heat exchanger 6 to discharge hot water in the additional boiling heat exchanger 6 into the bath tub 5 and a stopped state in which supplying of air into the additional boiling heat exchanger 6 is stopped.

10. 发明专利

JPH10122580A HOT WATER SUPPLY APPARATUS 失效
公开(公告)号：JPH10122580A
公开(公告)日：1998-05-15
申请号：JP27605896
申请日：1996-10-18
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , KANETO MASANORI , TEJIMA NOBUAKI , IMAIDA HIRONAO
IPC分类号： F24H1/00 , F24D3/08
摘要： PROBLEM TO BE SOLVED: To avoid supply of high temperature hot water upon starting of hot water supply even when mixing means such as a mixing valve has a trouble in the state where it is opened on the side of a hot water supply heat exchanger by controlling the mixing means and a bypass valve such that upon the starting of hot water supply water is supplied to a hot water supply passage through a bypass passage and an auxiliary bypass passage. SOLUTION: During waiting of hot water supply prior to hot water supply operation, a water proportional valve 18 on a hot water supply passage 9 is kept at an open state, and a solenoid valve 16 of an auxiliary bypass passage 14 is kept at an open state, and further an opening of a mixing valve 15 is kept to a previously set opening. To be concrete, a valve disk of the mixing valve 15 is kept at a predetermined position such that a mixing ratio represented by hot water amount/(hot water amount + water amount) becomes about 0.5. Thus, even when a hot water supply plug is opened in the state where high temperature hot water is existent in a heat transfer pipe 3 of a hot water supply heat exchanger 1, water is supplied to the hot water supply passage 9 through a bypass passage 13 and the auxiliary bypass passage 14 and hence high temperature hot water from the hot water supply cock is prevented from being discharged.

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