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11. 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.

12. 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.

13. 发明专利

JP2000146173A COMBUSTION APPARATUS 失效
公开(公告)号：JP2000146173A
公开(公告)日：2000-05-26
申请号：JP31711598
申请日：1998-11-09
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , AWANE SATORU , IWATANI YOSHINORI , MORITA AKINORI
IPC分类号： F23N5/24
摘要： PROBLEM TO BE SOLVED: To provide a combustion apparatus capable of surely inhibiting start of combustion in a combustion abnormal state and surely informing a user of the combustion abnormal state. SOLUTION: In a combustion apparatus wherein a controller for controlling combustion operation of a burner B performs combustion control that starts combustion of the burner B when a combustion start command is issued and stops combustion of the burner B when a combustion stop command is issued on the basis of command information of a combustion state command means 11 and combustion inhibition control that stops combustion of the burner B when combustion of the burner B is in a combustion abnormal state on the basis of detection information of the combustion abnormality detection means 15 and inhibits start of combustion regardless of the combustion start command from the combustion state command means 11 until a reset command is issued, the reset command is issued by intermittence of power supply caused by removal and reinstallation of a battery.

14. 发明专利

JPH1194357A COMBUSTION TYPE HEATER 失效
公开(公告)号：JPH1194357A
公开(公告)日：1999-04-09
申请号：JP25447997
申请日：1997-09-19
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , KONISHI DAISUKE , YASUKAWA MASAYOSHI , DANGISHIYO KENJI , ENOMOTO TAMOTSU
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To regulate combustion of a combustion burner for switching a sub- heat exchanger between conductive state and nonconductive state accurately by determining a sub-combustion depending on the conduction conditions for a liquid being heated by the sub-heat exchanger. SOLUTION: A hot water supply unit with additional burning function for bath comprises a burner 2 for burning fuel gas being supplied into a combustion chamber 1 on the inside of a casing CA, and two tin-tybe type heat exchangers N1, N2 for supplying or interrupting supply of hot water, i.e., the liquid being heated through the combustion burner 2, individually and freely. The fuel gas supply passage G to the combustion burner 2 is provided with a main gas solenoid valve 25, a main gas valve 27 for switching fuel gas supply state for the combustion burner 2, and a gas proportional valve 26 for regulating fuel gas supply. Heating conditions of the heat exchanger N1 for supplying hot water can be differentiated between a state where the heat exchangers N1, N2 are arranged in the gas channel and hot water flows through the heat exchanger N2 for additional burning and a state where the hot water flow is interrupted.

15. 发明专利

JPH10122653A HOT WATER SUPPLY DEVICE 失效
公开(公告)号：JPH10122653A
公开(公告)日：1998-05-15
申请号：JP27605996
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 , F24D17/00
摘要： PROBLEM TO BE SOLVED: To control the generation of a thermal stress by uniformly heating the whole of heat-exchange parts when only some of a plurality of burners are caused to effect combustion, to suppress the increase of the temperature of unused hot water retained in the heat-exchanger part, and to prevent an adverse influence from being exercised on the heat-exchange part and other part. SOLUTION: A hot water supply device comprises a plurality of heat- exchange parts to heat hot water; and a single burner device 6 to heat a plurality of the heat-exchange parts. The burner device 6 comprises a plurality of burners 27a and 27b. When all of a plurality of the burners 27a and 27b are made to effect combustion, a plurality of the heat-exchange parts are positioned in the combustion gas passages of the burners 27a and 27b. Further, the number of the burners 27a and 27b, effecting combustion, is varied according to an input amount of the burner device 6. When only some of a plurality of the burners 27a and 27b are made to effect combustion, a part of the burners 27a are made to effect combustion in a state that the burners are dispersed based on a plurality of the burners 27a and 27b.

16. 发明专利

JPH0989222A GAS COMBUSTION DEVICE 失效
公开(公告)号：JPH0989222A
公开(公告)日：1997-04-04
申请号：JP25220395
申请日：1995-09-29
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： KITAGAWA KATSUYA , MORITA TETSUJI , MOCHIKI KOJI
IPC分类号： F23D14/08 , F23D23/00 , F23N1/00
摘要： PROBLEM TO BE SOLVED: To prevent the promotion of local deterioration and improve durability by a method wherein combustion is effected by all combustion blocks upon high load combustion while the combustion is effected in only one combustion block upon low load combustion and the accumulated combustion time is unified as far as possible while increasing a turn down ratio. SOLUTION: A plurality of pieces of burners are divided into a plurality of combustion blocks 8, 9, 10 and respective combustion blocks 8, 9, 10 are provided with a fuel gas supplying passage, supplying fuel, gas individually, while respective fuel gas supplying passages are provided with an intermittent valve. A control means, controlling the operation of the intermittent valve, controls so as to burn all burners of all combustion blocks 8, 9, 10 upon high load combustion and controls so as to burn the burners of only one combustion block 8 upon low load combustion. Further, the control means controls so as to switch the operating block into the combustion blocks 8, 9 automatically upon low load combustion in the gas combustion device.

17. 发明专利

JP2000146167A COMBUSTION EQUIPMENT 失效
公开(公告)号：JP2000146167A
公开(公告)日：2000-05-26
申请号：JP31711698
申请日：1998-11-09
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： MORITA TETSUJI , OKUDA SHIGENOBU , AWANE SATORU , IWATANI YOSHINORI , DANGI YASUHARU
IPC分类号： F23N5/24 , F23N5/02 , F23N5/20 , F23N5/26
摘要： PROBLEM TO BE SOLVED: To provide a combustion equipment capable of assuring safety in use without deteriorating handling convenience. SOLUTION: A controller C for controlling combustion of a burner 3 executes a combustion control for starting a combustion of the burner 3 when a combustion start command is instructed and stopping the combustion of the burner 3 when a combustion stop command is instructed and a combustion emergency stop control for stopping the combustion of the burner 3 in the case of discriminating that the combustion state of the burner 3 is an incomplete combustion state based on detection information of first thermocouple 17 for detecting a temperature of a combustion flame. The controller C executes a combustion inhibiting control for inhibiting start of the combustion irrespective of the start command until a reset command is instructed by deciding an abnormal state when the stop of the combustion by the execution of the emergency stop control is continuously repeated set times after the combustion of the burner 3 is started.

18. 发明专利

JP2000028114A GAS BURNER 失效
公开(公告)号：JP2000028114A
公开(公告)日：2000-01-25
申请号：JP19263698
申请日：1998-07-08
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： F23D14/08
摘要： PROBLEM TO BE SOLVED: To provide a gas burner capable of performing a comparatively stable combustion to control generation of CO gas even if one of two mixed gas passage is blocked with a spider web or the like. SOLUTION: A gas burner wherein a bottomed cylindrical burner body 23 is constituted by bending and bonding both end peripheries of plate-shaped member disposed opposite to one another, a bottomed box body 24 capable of being inserted in an opening of the burner body 23 is provided, and in the state of being inserted, a row of burner ports 28 arranged in line in a longitudinal direction of the opening is formed between a longitudinal side inner face of the opening and a longitudinal side outer face of the box body 24 located opposite to it, a mixed gas passage communicating with the row of the burner ports 28 is formed between a bottom D of the burner body 23 and a bottom E of the box body 24 and a mixed gas supply part 20a for supplying a mixed gas is formed in both end parts in the direction of the row of the burner ports 28 in the mixed gas passage is constituted in such a manner that the bottom D of the burner body 23 and the bottom E of the box body 24 are brought into contact with, or nearly into contact with each other in a central part in the direction of the row of the burner ports 28 in order to suppress passage of the mixed gas.

19. 发明专利

JPH11173663A WATER HEATER 失效
公开(公告)号：JPH11173663A
公开(公告)日：1999-07-02
申请号：JP34106297
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 MITSURU , KONISHI DAISUKE , YASUKAWA MASAYOSHI
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To enable adjusting of a water filling temperature to a target temperature set by a temperature setting means by regulating the temperature of supplied hot water to the target temperature set by the temperature setting means with respect to a location of supplying hot water even in the simultaneous operation that executes an ordinary hot water supply operation and a hot water filling operation. SOLUTION: In the simultaneous operation that executes an ordinary hot water supply operation to supply hot water to a location of supplying hot water through a hot water supply path 5 so that the temperature of hot water in a bathtub 2 reaches a target temperature by a temperature setting means 39 when the quantity of supplied hot water to the bathtub reaches a target temperature by a temperature setting means 41 and a hot water filling operation in which hot water to be supplied to a circulation path 7 flows through the circulation path 7 being separated in two directions and be supplied to the bathtub 2, a control means H is so arranged to alter and adjust the supply temperature of hot water from the hot water supply path 5 in the hot water filling operation to meet the requirement of regulating the temperature of the supplied hot water from the hot water supply path 5 to a target temperature.

20. 发明专利

JPH1114014A THICK AND THIN COMBUSTION EQUIPMENT 失效
公开(公告)号：JPH1114014A
公开(公告)日：1999-01-22
申请号：JP16419597
申请日：1997-06-20
申请人： OSAKA GAS CO LTD , HARMAN CO LTD
发明人： OTSUKA TETSUJI , MORITA TETSUJI , TANIMURA YOSHITAKA
IPC分类号： F23D14/08 , F23C99/00 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To reduce the generation of NOx by minimizing the ratio of thick fuel-air mixture relative to the thin fuel-air mixture while assuring a favorable flame stabilizing effect of a thin flame by a thick flame. SOLUTION: A plurality of thick burners 3 which are respectively provided with elongated burner port surfaces 6 and a plurality of thick burner port portions 8 which blow off and burn the thick fuel-air mixture made of fuel gas and combustion air on the elongated burner port surface 6 are arranged in parallel in a widthwise direction of the burner port surfaces 6. Thin burners 15 which blow off and burn the thin fuel-air mixture made of fuel gas and combustion air are provided between burner port surfaces 6 of the thick burners 3. Furthermore, burner port plates on which burner port surfaces 6 of the thick burners 3 are formed have a transverse cross section which is of a protruding shape protruding in a blow off direction of the thick fuel-air mixture and the thick burner port portions 8 are made of slit-like burner ports 8a which are formed along a widthwise direction of the burner port surfaces 6 and the slit-like burner ports 8a are formed along the entire length of the burner port plates having the protruding shape.

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