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61. 发明专利

JP2002081753A TEMPERATURE FUSE FOR HEAT EXCHANGER 失效
公开(公告)号：JP2002081753A
公开(公告)日：2002-03-22
申请号：JP2000265372
申请日：2000-09-01
申请人： TOKYO GAS CO LTD
发明人： KOSHIMIZU DAISUKE
IPC分类号： F24H9/20 , F24H9/00 , F28F9/26
摘要： PROBLEM TO BE SOLVED: To provide a means for previously prevent a trouble before it occurs or detecting it in an early time in a heat exchanger where combustion gas is used as a heating side fluid even if a situation happens in which an occurrence of a fine crack is anticipated in any parts on an outside surface of an inner truck where combustion gas flows inside thereof. SOLUTION: A surface shaped thin film or a printed wiring pattern of a material where an electric property is changed following a change in temperature, e.g. a thermistor or a conductive paint having a positive resistance temperature characteristic or a negative resistance temperature characteristic is formed on an outside surface of the inner trunk, and a change of the electric property owing to local overheating of the inner trunk is detected.

62. 发明专利

JP2001141309A DRAIN STORAGE CONTAINER 失效
公开(公告)号：JP2001141309A
公开(公告)日：2001-05-25
申请号：JP32404499
申请日：1999-11-15
申请人： TOKYO GAS CO LTD , RINNAI KK
发明人： KOSHIMIZU DAISUKE , AMO SHINJI , TAKEUCHI YOSHIKI
IPC分类号： C02F1/66 , F24H1/14 , F24H9/00
摘要： PROBLEM TO BE SOLVED: To discharge drain to the outside of a combustion equipment even when a drain piping is choked, in a drain storage container mounted on the combustion equipment provided with a latent heat recovery heat-exchanger. SOLUTION: The internal part of a drain storage container 1 is partitioned into a water seal chamber 11 and a neutralizing chamber 12 by a partition wall 14. A drain pipe 8 inserted from a position above the water seal chamber 11 has a lower end, which is situated in a position lower than the partition wall 14 and extends to a position situated in short of a bottom. The neutralizing chamber 12 has a bottom in which a drain port 17 connected to a drain piping 9 guiding to water works. The neutralizing chamber 12 has an overflow wall 15 formed in a region, where the drain port 17 is not formed, and in height lower than that of the partition wall 14, and an auxiliary chamber 13 surrounded by the overflow wall 15 is provided. A drain discharge port 18 released to the outside of a gas apparatus 2 is formed in the auxiliary chamber 13.

63. 发明专利

JP2001004228A LATENT HEAT RECOVERY HEAT EXCHANGER 失效
公开(公告)号：JP2001004228A
公开(公告)日：2001-01-12
申请号：JP17922899
申请日：1999-06-25
申请人： TOKYO GAS CO LTD
发明人： KOMUKAI SHIGERU , SHINTANI YOSHIHIRO , KOSHIMIZU DAISUKE
IPC分类号： F24H1/14 , F24H9/00 , F28F19/04
摘要： PROBLEM TO BE SOLVED: To eliminate a water leakage accident, if any, at a heat transfer tube placed in a severe corrosion environment exposed with a dry corrosion due to an exhaust gas acid component and a wet corrosion due to an acid drain in a combustion equipment having a latent heat recovery heat exchanger. SOLUTION: A combustion equipment having the latent heat recovery heat exchanger uses a stainless steel having excellent corrosion resistance as a manufacturing material instead of a heat transfer tube 11 heretofore made of aluminum, and covers an inner surface of the tube 11 with a coating 14 of a film of a water insoluble polymer material having a thermal expansion coefficient near that of the stainless steel on an inner surface of the tube 11. Thus, even if a pinhole or a hair crack exists or takes place, this can be sealed by the coating 14, thereby entirely eliminating an anxiety of a water leakage.

64. 发明专利

JP2000292010A HEAT-EXCHANGE DEVICE 失效
公开(公告)号：JP2000292010A
公开(公告)日：2000-10-20
申请号：JP2000009811
申请日：2000-01-19
申请人： RINNAI KK , TOKYO GAS CO LTD
发明人： SOFUE TSUTOMU , FUKAYA TAKESHI , KOSHIMIZU DAISUKE
IPC分类号： F24H1/14 , F24H1/40 , F24H8/00 , F24H9/00 , F24H9/14 , F28D1/04 , F28D21/00 , F28F1/00 , F28F1/32 , F28F1/36 , F28F21/08
摘要： PROBLEM TO BE SOLVED: To provide a heat-exchange device to reduce the size of a device, reduce a manufacturing cost, and prevent the occurrence of both corrosion due to drain generated from combustion exhaust gas and electrochemical corrosion. SOLUTION: This heat-exchange device comprises a combustion device 2; and can bodies 3a and 3b. A main heat-exchanger 12 consisting of a first water flow pipe 10 and a plurality of heat absorption fins 11 situated at its periphery and heating water in the water flow pipe 10 through absorption of a sensitive heat from combustion exhaust gas is provided in a can body 3a situated upper stream. An auxiliary heat- exchanger 15 consisting of a second water flow pipe 13 communicated with the water flow pipe 10 and a plurality of second heat absorption fins 14 situated at its periphery and heating water in the water flow pipe 13 by absorbing remaining sensitive heat and a latent heat from combustion exhaust gas is situated in the can body 3b situated downstream. The water flow pipe 10 and the heat absorption fins 11 are formed of a copper metal. The auxiliary heat-exchanger 15 is formed of an aluminum metal and consists of a fin tube 16 having the heat absorption fins 14, and a water flow pipe 13 formed of the same copper metal as that of the water flow passage 10 and fitted in the fin tube 16.

65. 发明专利

JPH11211081A COMBUSTOR PROVIDED WITH EXHAUST DUCT FIRE PREVENTIVE FUNCTION, AND EXHAUST HOOD PROVIDED WITH EXHAUST DUCT FIRE PREVENTIVE FUNCTION 失效
公开(公告)号：JPH11211081A
公开(公告)日：1999-08-06
申请号：JP3052398
申请日：1998-01-28
申请人： GASTAR CORP , TOKYO GAS CO LTD
发明人： ITAGAKI MASAHARU , ISOZAKI TAKESHI , KOSHIMIZU DAISUKE
IPC分类号： F23N5/24
摘要： PROBLEM TO BE SOLVED: To prevent the intentional removal of a temperature detection means for an exhaust hood. SOLUTION: A controller 20 which controls the operation action of a hot-water supplier 1 takes in the detected temperature of an exhaust temperature detection means 10 during combustion of the hot-water supplier 1, and compares the detected temperature with the preset tolerable exhaust temperature range of continuance of combustion, and when it judges that the detected temperature is outside the tolerable exhaust temperature range, it compulsively stops the combustion of the hot-water supplier 1. When the detected temperature is under the lower limit value of the tolerable exhaust temperature range thought exhaust at high temperature is discharged from the hot-water supplier 1 during the combustion and the temperature not less than the lower limit value of the tolerable exhaust temperature range must be detected by an exhaust temperature detection means 10, it is considered that the exhaust temperature detection means 10 is removed. In this case, the combustion can not be continued unless the exhaust temperature detection means 10 is mounted normally, so the user can not help installing the exhaust temperature detection means 10. The removal of the exhaust temperature detection means 10 is prevented.

66. 发明专利

JPH11211066A COMBUSTION DEVICE 失效
公开(公告)号：JPH11211066A
公开(公告)日：1999-08-06
申请号：JP2783098
申请日：1998-01-27
申请人： GASTAR CORP , TOKYO GAS CO LTD
发明人： ITAGAKI MASAHARU , ISOZAKI TAKESHI , TAKESHITA NAOYUKI , KOSHIMIZU DAISUKE
IPC分类号： F23L17/00 , F23J15/06 , F23L17/16
摘要： PROBLEM TO BE SOLVED: To suppress static pressure required or mounting a duct, and to reduce combustion by forming a dilution air introduction part at a downstream side of a heat exchanger, and rotating a fan for allowing dilution air with temperature being lower than that of exhaust to flow into the exhaust. SOLUTION: In a case 1a being used as the exterior panel of hot-water supply equipment 1, a burner 8 that mixes a proper amount of fuel and air for combustion is placed, and a water pipe 10 is mounted to a heat exchanger 9 being heated by the burner 8. Furthermore, at the side of the inlet that is opened outside the case 1a and where an exhaust stack 6 is mounted and exhaust from the burner 8 in the exhaust stack 6 flows, a dilution air introduction part 11 is formed. Then, a fan 12 is installed in the exhaust stack 6, dilution air is forcibly taken from the dilution air introduction part 11, and the dilution air is mixed with the exhaust of the burner 8 for sending out.

67. 发明专利

JPH11190555A HOT WATER SUPPLY APPARATUS 失效
公开(公告)号：JPH11190555A
公开(公告)日：1999-07-13
申请号：JP36074297
申请日：1997-12-26
申请人： TOKYO GAS CO LTD
发明人： KOSHIMIZU DAISUKE
IPC分类号： F24H1/18 , F24H1/10
摘要： PROBLEM TO BE SOLVED: To minimize damage even when water leaks at the spots of a hot water supply apparatus. SOLUTION: In a hot water supply apparatus 1 consisting of a water supply pipe 11, a heat-exchanger 12, and a hot water supply pipe 14, a fully closable solenoid on-off valve 15 is arranged in the water supply pipe 11, and a pressure sensor 16 is arranged in the hot water supply pipe 14 situated downstream from the solenoid on-off valve 15. A control device 17 holds full closing of the solenoid on-off valve 15 according to detection of reduction of a pressure by the pressure sensor 16 during a stop of hot water supply, and displays leakage of water by a display device 18.

68. 发明专利

JPH1194281A HOT WATER SUPPLY DEVICE 失效
公开(公告)号：JPH1194281A
公开(公告)日：1999-04-09
申请号：JP20506198
申请日：1998-07-21
申请人： TOKYO GAS CO LTD , TAKAGI KOGYO KK
发明人： YOSHIDA MASASHI , SUGANO YOSHIHIRO , OTA KIYOSHI , KOSHIMIZU DAISUKE , NISHI TAKAHIRO , TAKAGI TAKAO , MOCHIZUKI KIMIO , SHINOHARA SENZOU , HASHIMOTO KUNINORI , TAKAI HIDETADA
IPC分类号： F24H1/10 , F24D17/00
摘要： PROBLEM TO BE SOLVED: To provide a hot water supply device to conform to the increase and the decrease of a hot water supply demand. SOLUTION: A plurality of hot water heater units (instantaneous hot water heaters 1a, 1b, and 1c) each comprising a heat-exchanger 2; a burner 3; a valve (a remote control valve 18), and an individual control means 6 are arranged in a circulation route (a circulation piping 9) consisting of a single hot water supply outgoing pipe 11, and a hot water supply round pipe 12. Further, a central control means 8 is provided. A valve (a remote control valve 18) is opened and closed according to a hot water supply demand and one or two or more of the hot water heater units are selectively controlled to an operation state.

69. 发明专利

JPH09229368A COOKING STOVE 失效
公开(公告)号：JPH09229368A
公开(公告)日：1997-09-05
申请号：JP3448996
申请日：1996-02-22
申请人： TOKYO GAS CO LTD
发明人： KOSHIMIZU DAISUKE
IPC分类号： F24C3/02 , F24C3/08
摘要： PROBLEM TO BE SOLVED: To prevent the bottom surface of a cooking vessel or the like from being locally superheated by changing the forming part of a flame with the lapse of time by turning a flame port part even when a high load combustion burner is used. SOLUTION: This cooking stove has the flame port part 2 of a high load combustion burner 1 supported on a plane so as to be rotated and performs a combustion while the flame port part is rotated go that a flame forming part is varied with the lapse of time. While a single flame port part may be provided, a plurality of flame port parts may be provided and rotated concentrically. Therefore, (a) even when the high load combustion burner is used, a cooking vessel such as a pan is not locally superheated. (b) Thermal efficiency, which has been conventionally about 40% at its maximum. is raised up to approximately 60 to 70%. (c) Since the quantity of the heat loss of exhaust gas is decreased, the rise of an ambient temperature is suppressed and a work environment is more improved than a conventional one. (d). Since the quantity of combustion air can be precisely set, NOx is relatively easily lowered.

70. 发明专利

JPH08135974A RANGE AND COMBUSTION METHOD THEREFOR 失效
公开(公告)号：JPH08135974A
公开(公告)日：1996-05-31
申请号：JP27524394
申请日：1994-11-09
申请人： TOKYO GAS CO LTD
发明人： KOSHIMIZU DAISUKE
IPC分类号： F23N1/00 , F24C3/08 , F24C3/12
摘要： PURPOSE: To prevent the local overheating of a cooking vessel even when the number of operated burners is small by a method wherein respective, flame ports of a multitude of burners, which can be on-off controlled independently, are arranged in one plane while the amount of combustion of a range can be controlled by the number of burners burnt at the rated capacities thereof. CONSTITUTION: A range is constituted so that respective fuel gas supplying routes 5 of a multitude of burners 1a-1e are provided with solenoid valves 6 respectively while the opening and closing of these solenoid valves 6 is controlled independently by a control device 7 to control the ON-OFF of the burners 1a-1e. Accordingly, combustion under the rated amount of combustion of a range or the maximum amount of combustion can be effected by burning all of the burners 1a-1e under the rated amount of combustion respectively. The amount of combustion can be reduced stepwise by reducing the number of burners 1a-1e to be burnt. According to this method, the local overheating of a cooking vessel 3 can be prevented even when the number of burners to be burnt is small.

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