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91. 发明专利

JPH10325559A HOT WATER SUPPLY APPARATUS 失效
公开(公告)号：JPH10325559A
公开(公告)日：1998-12-08
申请号：JP19762298
申请日：1998-07-13
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： F24H9/00 , F24D17/00 , F24H1/10
摘要： PROBLEM TO BE SOLVED: To respond to increase and decrease in hot water supply demand promptly by forming a hot water supply line by connecting a hot water output side and water input side with a hot water supply pipe and a hot water return pipe, respectively, and forming a unit hot water supply apparatus comprising a plurality of hot water heater units by connecting a fuel gas supply pipe with a fuel gas introduction part. SOLUTION: Instantaneous water heaters 1a-1c are provided with a heat exchanger 2 and a burner 3, and separate control means 8 for performing combustion control of the burner 3 and on-off control of an electric motor operated valve 7 on the basis of a flow sensor 5 and a hot water temperature sensor 6 in a water heating line 4 are provided and a centralized control of the control means 8 is carried out by a central processing control means 9. A circulation pump 14 is provided in a hot water return pipe 13 of a piping 10 constituting a circulation pipe line passing through hot water supply sites 11a-11c and a water feed line 15 connected with the hot water return pipe 13 is connected to water works. Fuel gas supply piping is constituted of pipe units separated for each instantaneous hot water heater 1a-1c and the piping can be extended in response to the instantaneous hot water heaters 1a-1c by joining flanges of the pipe units.

92. 发明专利

JPH08121874A CIRCULATION TYPE WATER HEATER 失效
公开(公告)号：JPH08121874A
公开(公告)日：1996-05-17
申请号：JP26402794
申请日：1994-10-27
申请人： TOKYO GAS CO LTD
发明人： KOSHIMIZU DAISUKE
IPC分类号： F24H9/00 , F24D17/00
摘要： PURPOSE: To make the temperature distribution of warm water along a hot water supply tube in the heat insulation operation of a circulation type water heater uniform. CONSTITUTION: A circulation type water heater comprises a hot water supply tube 14 from a hot water supply heat source equipment 1 to a hot water supply position 3, a hot water return tube 15 connected to the end of the supply tube to return from the position to the equipment, a circulation pump 6, and a water supply tube 7 connected from a water supply source to the upstream side of the equipment, wherein the supply tube and the return tube are disposed in a counterflow type to be thermally coupled, and integrally heat insulated. Since the temperature distribution along the supply tube of warm water is made uniform in the heat insulation operation, the inconvenience in which the temperature of the warm water immediately after supplying is different according to the hot water supply position can be prevented.

93. 发明专利

JPH06229537A PREVENTING AND CONTROLLING METHOD FOR BLOW-OFF OF INSTANTANEOUS HOT WATER SUPPLYING APPARATUS 失效
公开(公告)号：JPH06229537A
公开(公告)日：1994-08-16
申请号：JP1458493
申请日：1993-02-01
申请人： TOKYO GAS CO LTD
发明人： KOSHIMIZU DAISUKE
IPC分类号： F23N1/02 , F23N1/10 , F23N5/20
摘要： PURPOSE:To improve hot-water supply characteristics of an instantaneous hot water supplying apparatus. CONSTITUTION:An instantaneous hot-water supplying apparatus prevents blow- off by simultaneously operating igniters for a predetermined time when fuel gas amount and air amount are reduced in case of an abrupt decrease in necessary capacity. Thus, the blow-off is prevented, and a rapid reignition in the case of the blow-off is provided to substantially continuously burn, thereby largely improving a variation in a temperature of supplying hot water.

94. 发明专利

JPH04324055A CONTROLLING METHOD FOR HEAT SOURCE FOR SUPPLYING HOT WATER WITH PLURAL GAS MOMENTARY WATER HEATERS 失效
公开(公告)号：JPH04324055A
公开(公告)日：1992-11-13
申请号：JP12215091
申请日：1991-04-24
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： F23N5/00 , F24D17/00 , F24H1/10
摘要： PURPOSE:To short a rising time at the time of starting operations of momentary water heaters in the case of increasing a hot water supplying load in a heat source in which water heating passages 11 of a plurality of gas momentary water heaters 9 having an air supply fan 16 are connected in parallel and the number of operating heaters can be controlled. CONSTITUTION:An opening operation of a remote control switching valve 12 provided in a water heating passage 11 and starting of an air supply fan 16 are simultaneously conducted according to an operation start command to individual control means 13 of respective momentary water heaters from common control means 19 to start an ignition sequence of burners 14. Since rising times of the valve 12 and the fan 16 are not accumulated, a time from when the command is generated to when an open command of a fuel gas valve 15 is generated, can be shortened, and a temporary decrease of hot water temperature to be supplied from a heat source can be prevented.

95. 发明专利

JPH0439539A CENTRAL HOT WATER FEEDING DEVICE 失效
公开(公告)号：JPH0439539A
公开(公告)日：1992-02-10
申请号：JP14500590
申请日：1990-06-02
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： PURPOSE:To improve durability of one hot water feeding device by a method wherein a central control means is provided with an abnormal state sensing means of each of individual control means and a closing command signal for a remote controlled valve is generated when an abnormal state is generated in an individual control means. CONSTITUTION:In the event that an abnormal state occurred in any of instant hot water boiler, an abnormal state occurrence sensing means 10 generates a detecting signal, this sensing signal is received, a closing command for a remote controlled valve 7 is generated to an individual control means 8. The remote controlled valve 7 is closed by the individual control means 8, a water flowing in a hot water boiling passage 4 is stopped and then combustion in a burner 3 is also terminated. Then, the central control means 9 stops operation of the instant hot water boiler 1 showing this troubled state, thereafter operates the instant hot water boiler 1 not troubled during its stopped state. In this way, a continuation of the abnormal operation is prevented and further any influence over the hot water feeding is prevented.

96. 发明专利

JPH0439538A CENTRAL HOT WATER FEEDING DEVICE 失效
公开(公告)号：JPH0439538A
公开(公告)日：1992-02-10
申请号：JP14500490
申请日：1990-06-02
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： PURPOSE:To improve durability of one hot water feeding device by a method wherein an individual control means if provided with a single operation setting means, means for sensing an occurrence of abnormal state of a central control means and a changing- over means for changing-over the individual control means to the single operation control under a condition of a sensing of an occurrence of abnormal state and a single operation setting. CONSTITUTION:In the event that an abnormal state occurs in a central control means 9 and a request generated from the central control means 9 is not received by an individual control means 8 for every predetermined time under a normal state or in the event that a signal other than a predetermined control signal is received by the individual control means 8, means 11 for sensing an occurrence of abnormal state generates a sensing signal. Then, an operation changing-over means 12 checks a presence or a non-presence of set in a single operation setting means 10. In the event that the single setting is carried out, the individual control means 8 is changed over to the single controlling operation and then an instant hot water boiler 1 is operated. With such an arrangement, it is possible to prevent a continuation of control by the central control means 8 having an abnormal state occurred therein and further to prevent an abnormal operation of the instant hot water boiler 1.

97. 发明专利

JPH01174855A WATER HEATER 失效
公开(公告)号：JPH01174855A
公开(公告)日：1989-07-11
申请号：JP33636187
申请日：1987-12-28
申请人： TOKYO GAS CO LTD , HOSOYAMA NEKKI KK
发明人： SUGANO YOSHIHIRO , KOSHIMIZU DAISUKE , YUMOTO NORIO , SAITO HIDETOSHI
IPC分类号： F24H1/18 , F24D3/00 , F24H1/20
摘要： PURPOSE:To lower the exhaust temperature of an exhaust gas to or below the saturation temperature of the gas and enable effective recovery of the latent heat of evaporation, by a construction wherein upper and lower water-heating parts formed by partitioning the interior of a water-heating tank are provided with first and second hot water circulating systems comprising first and second indirect hot-water heat exchanging parts, respectively. CONSTITUTION:A combustion exhaust gas generated at a burner 15 is discharged from a combustion chamber 5 to the exterior through exhaust pipes 7 and an exhaust chamber 6. While passing through an exhaust-gas heat exchanging system A, the exhaust gas exchanges heat with water contained in a water-heating tank 1 to heat the water, so that the water in a water-heating part 3 is heated to a higher temperature, as compared with the water in a water-heating part 4. The water heated in the water-heating part 3 and the water heated in the water-heating part 4 are circulated through first and second indirect hot-water heat exchanging parts 8, 9 by first and second hot water circulating systems B, C, respectively. Water introduced through a water inlet 10 of a hot water supplying system D is brought into indirect heat exchange with the hot water fed from the water-heating part 4 at the heat exchanging part 9, and when it flows through the heat exchanging part 8, it is further heated through indirect heat exchange with the hot water coming from the water-heating part 3. The hot water subjected to heat exchange with the water in the system D in the heat exchanging part 8 and that in the heat exchanging part 9 are returned to lower parts of the water-heating parts 3, 4, respectively, and are again heated.

98. 发明专利

JPH01137154A HOT WATER FEEDING DEVICE 失效
公开(公告)号：JPH01137154A
公开(公告)日：1989-05-30
申请号：JP29335887
申请日：1987-11-20
申请人： ASAHI GLASS CO LTD , TOKYO GAS CO LTD
发明人： MORITA SUSUMU , SHIYUDOU TAKAAKI , EBATO SATOSHI , SUGANO YOSHIHIRO , KOSHIMIZU DAISUKE
IPC分类号： F24H1/14 , F24H9/00
摘要： PURPOSE:To provide a arrangement-structure of main heat transfer pipes and auxiliary heat transfer pipes suitable for making the title device compact, by a method wherein the main heat transfer pipes are securely supported by the first opposite walls of a casing and the pipes are intercoupled through a coupling pipe situated outside the first opposite walls, and the auxiliary heat transfer pipes are situated along only second opposite walls in a state to make contact therewith. CONSTITUTION:In a casing 11, a plurality of main heat transfer pipes 18 are spanned in parallel to each other in a manner to extend across a combustion gas flow passage 14. The main heat transfer pipe 18 has both end parts securely supported to wall surfaces 11a and 11b positioned facing each other of the casing 11, and the main heat transfer pipes are intercoupled in a meandering state through U-shaped coupling pipes 17 situated outside the wall surfaces 11a and 11b to form a single continuous flow passage connected in orderly series throughout the whole ranging from a lower stage to an upper stage. Auxiliary heat transfer pipes 20a and 20b are situated in a manner to make external contact with opposite wall surfaces 11c and 11d of the casing 11 in a state to increase the length of a line due to meandering. The two types of the heat transfer pipes can be installed approximately at the same distance from a burner body 12 to save a space, the wall surface of the casing is prevented from overcooling to reduce an amount of drain generated to a low value as much as possible, and corrosion of the casing due to drain and the damage of a combustion means are prevented from occurring.

99. 发明专利

JPH0195254A FLUID HEATING APPARATUS WITH HEAT TRANSFER PROMOTER 失效
公开(公告)号：JPH0195254A
公开(公告)日：1989-04-13
申请号：JP25311787
申请日：1987-10-07
申请人： ASAHI GLASS CO LTD , TOKYO GAS CO LTD
发明人： MORITA SUSUMU , UCHIYAMA TARO , EBATO SATOSHI , ODA NORIYUKI , SUGANO YOSHIHIRO , KOSHIMIZU DAISUKE
IPC分类号： F24H3/08
摘要： PURPOSE:To prevent a plate fin from receiving thermal damage due to partial overheating, and to increase the efficiency of heat transfer, by disposing a heat transfer promoter in a specified position in a flow passage of combustion gas on the plate fin. CONSTITUTION:A combustion gas 'G' flows upward in a can body 12, contacting to a plate fin 17 and heat transfer pipes 18, heating fluid to be heated, flowing through the heat transfer pipes 18. In the plate fin 17, the bottom edge on the upstream side of flowing combustion gas 'G' gets the highest temperature. But even in the edge part, the rise in temperature in parts 'A' which are close to the heat transfer pipes 18 is suppressed to some extent since the parts 'A' are cooled by the fluid to be heated. A heat transfer promoter 22 is disposed so as to be contacted to the parts 'B' on the upstream side which are between the heat transfer pipe 18, so that the flowing direction of combustion gas 'G' is changed by the heat transfer promoter 22 as shown by arrow signs 'F', flowing into the parts 'B' after the temperature in the combustion gas is a little decreased by exchanging heat with heat in the parts 'A'. As a result, the parts 'B' are prevented from being partially overheated.

100. 发明专利

JPS63279056A COLUMN VIBRATION RESTRICTING MECHANISM IN COMBUSTION DEVICE FOR HOT WATER 失效
公开(公告)号：JPS63279056A
公开(公告)日：1988-11-16
申请号：JP11434387
申请日：1987-05-11
申请人： TOKYO GAS CO LTD
发明人： SAKURAI KOZO , KOSHIMIZU DAISUKE
IPC分类号： F24H1/22 , F24H1/12
摘要： PURPOSE:To restrict an occurrence of vibration of column, make a small-sized combustion apparatus for hot water and a low noise of the apparatus by a method wherein a by-pass passage by-passing a heat exchanger is arranged outside the combustion chamber. CONSTITUTION:In a hot water combustion apparatus 4 provided with a hot water heat exchanger 3 at a downstream side of a burner 2 within a combustion chamber 1, a bypass passage 4 by-passing a heat exchanger 3 is arranged outside the combustion chamber 1. A part of the combustion gas is flowed in the by-passing passage 4 from an up-stream side of the heat exchanger 3 and flowed to a downstream side of the heat exchanger 3 and then it is discharged out of a discharging port 5 together with the combustion gas passed through the heat exchanger 3. Vibrations of column in each of the modes diminish with each other through an inlet 6 and an outlet 7 of the bypass passage 4 in the upstream and downstream sides of the heat exchanger 3 and, therefore, it is possible to make hard a spatial vibrating condition of a column vibration of the burner of a specified mode. As a burner 2, an original mixing burner is applied and in case that a high density short flame 8 of plane shape is formed at the end part of the combustion chamber 1, an occurrence of column vibration is restricted. Heat of the combustion gas passed through the bypass passage 4 can effectively utilized under an arrangement of a heat exchanger 3'.

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