专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH09101231A METHOD AND APPARATUS FOR LOCATING LEAKAGE 失效
公开(公告)号：JPH09101231A
公开(公告)日：1997-04-15
申请号：JP15289696
申请日：1996-05-27
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , HAMADA SHIGERU , KOMAKI MICHINORI , FURUKAWA HIDEKI
IPC分类号： G01F1/00 , G01M3/02 , G01M3/28 , G01M3/38
摘要： PROBLEM TO BE SOLVED: To provide method and apparatus for locating a leakage easily and reliably. SOLUTION: A current velocity detecting part 20 fixed with a flow sensor 21 is inserted into piping 11. The current velocity detecting part 20 is fixed with the wire 31 of a moving unit 30 and the wire 31 is pushed into the piping 11 by means of push-in rollers 32a, 32b thus moving the current velocity detecting part 20 in the axial direction of piping 11. The moving amount is detected by means of a moving amount detecting sensor 40. A microcomputer 50 decides whether a leakage 13 is present based on a signal from a flow sensor 21 and locates a leakage, based on a signal from the sensor 40.

2. 发明专利

JPH0921564A HOT WATER FEEDER 失效
公开(公告)号：JPH0921564A
公开(公告)日：1997-01-21
申请号：JP16885495
申请日：1995-07-04
申请人： TOKYO GAS CO LTD
发明人： KUBOTA KAORU , ITO KOICHIRO , HAMADA SHIGERU , SUZUKI KIWAMU , ISHIMOTO MASA , MORITA SATORU
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To reserve service water without needing a labor, for example, during limitation of a water feed time, by providing a water filling mode wherein water is fed without being heated. SOLUTION: Assignment of a water filling mode and indication of operation starting are effected from a service station 2 and a CPU 11 of a gas hot water feeder 1 is operated based on the assignment and the indication. A feed water solenoid valve 13 is first opened and it is decided whether or not an assigned mode is a water filling mode. When it is not the water filling mode, an ignition sequence to ignite a gas burner 12 is executed and when it is the water filling mode, the ignition sequence is not executed. Since the assigned mode is now the water filling mode, the gas burner 12 is not ignited and water fed through a heat-exchanger 14 is water not heated but left as it is, and the water is reserved in a bath tub. When the level of water reserved in the bath tube attains a target water level, the feed water solenoid valve 13 is closed and it is decided whether or not an assigned mode is a water filling mode. When it is not the water filling mode, a gas burner 12 is fire-extinguished.

3. 发明专利

JPH0921563A HOT WATER FEEDER 失效
公开(公告)号：JPH0921563A
公开(公告)日：1997-01-21
申请号：JP16885595
申请日：1995-07-04
申请人： TOKYO GAS CO LTD
发明人： KUBOTA KAORU , ITO KOICHIRO , HAMADA SHIGERU , SUZUKI KIWAMU , ISHIMOTO MASA , MORITA SATORU
IPC分类号： F24H1/00
摘要： PROBLEM TO BE SOLVED: To reserve service water without needing a labor when a water feed time is limited and to perform sanitary management of reserved service water by providing a service water tank to receive and reserve service water through an auxiliary tank. SOLUTION: During pouring of service water in a service water tank 7, valves B and C are opened, valve A and D are closed, and ignition of the burners of heat-exchangers 4 and 5 is not carried out. Thereby, water in an auxiliary tank 6 flows in the service water tank 7 under gravity of water in the auxiliary tank 6. During operation to fill with hot water from the service water tank 7, the valves A and C are opened and the valves B and D are closed, and the burner of the heat-exchanger 5 for a bath is ignited. A pump P is driven, and through drive of the pump, water in the service water tank 7 flows in an auxiliary tank 6, and water in the auxiliary tank 6 flows in a piping 3 for a bath through a check valve E and the valve A. The water is pumped up by the pump P and heated by the heat-exchanger 5 for a bath, and poured in a bath tub through a piping H to fill a bath tub with hot water.

4. 发明专利

JPH096847A REPAIR AND BUSINESS SUPPORT SYSTEM FOR GAS EQUIPMENT 失效
公开(公告)号：JPH096847A
公开(公告)日：1997-01-10
申请号：JP15029795
申请日：1995-06-16
申请人： TOKYO GAS CO LTD
发明人： KUBOTA KAORU , HAMADA SHIGERU , SUZUKI KIWAMU , ITO KOICHIRO , ISHIMOTO MASA , MORITA SATORU
IPC分类号： F23N5/24 , G05B15/02 , G05B23/02 , G06Q10/00 , G06Q30/02 , G06Q50/00 , G06Q50/06 , G06Q50/10 , H04M11/00 , G06F17/60
摘要： PURPOSE: To speedily and accurately obtain fault diagnostic information on gas equipment to be repaired and to improve the operability on the spot by connecting a fault diagnostic device which has a microcomputer inside to the electronic circuit incorporated in the gas equipment to be repaired. CONSTITUTION: The fault diagnostic device that a repair operator carries with him is connected to the gas equipment 21 to be repaired on the spot and used for a fault diagnosis. This fault diagnostic device has the microcomputer inside. A CCD camera 4 can be connected to the fault diagnostic device 3. Thus the fault diagnostic device 3 is connected to the gas equipment 21 to be repaired to obtain the fault diagnostic information on the gas equipment 21 to be repaired and on the basis of the fault diagnostic information and/or at a request made by the repair operator, technical information required for the repair or information required for business is taken out of various information stored previously in a storage device 12. Consequently, the cause of a fault occurring to the gas equipment can speedily and accurately be investigated to improve the operability on the spot and comply with an emergency repair demand timely.

5. 发明专利

JPH1096514A COMBUSTION EQUIPMENT AND METHOD FOR DIAGNOSING FAILURE 失效
公开(公告)号：JPH1096514A
公开(公告)日：1998-04-14
申请号：JP11156797
申请日：1997-04-28
申请人： TOKYO GAS CO LTD
发明人： HAMADA SHIGERU , ISHIMOTO MASA , MORITA SATORU
IPC分类号： F23N5/24 , G06F11/34
摘要： PROBLEM TO BE SOLVED: To enable the easier detection in which step of combustion sequence an error occurs when the error has occurred by checking the detected value of sensors in controlling combustion and by storing corresponding error code together with sequence number at that time in a nonvolatile memory when the value is not normal. SOLUTION: A combustion fan 31 is turned on when a water flow sensor 27 detects the water flow of predetermined water flow or more when the hot water supply valve is opened and the output of the rotation sensor of the combustion fan 31 is zero. When the rotational speed of the combustion fan 31 is raised to predetermined speed or more, reduced ignition is started by turning on an igniter 52, an when the flame of a burner is detected by a flame rod, combustion control is started. In controlling the combustion, various sensors watch abnormalities and when an error is detected, the sequence number of a step where the error has been generated out of the sequence numbers given to each of the partitions of steps is stored in the nonvolatile memory to utilize it for later cause analysis by reading out the sequence number.

6. 发明专利

JPH09105529A HEATER 失效
公开(公告)号：JPH09105529A
公开(公告)日：1997-04-22
申请号：JP26011695
申请日：1995-10-06
申请人： TOKYO GAS CO LTD
发明人： HAMADA SHIGERU , FURUKAWA HIDEKI , NAKAYAMA KANAKO
IPC分类号： F24D3/00
摘要： PROBLEM TO BE SOLVED: To effectively and accurately control the temperature in a heater having a floor heater and an air conditioner without waste. SOLUTION: The heater 1 comprises a floor heater 2, an air conditioner, and a heat source machine 6 for sending warm water thereto. A floor thermometer 12, a room temperature thermometer 14 and a controller are contained in a set temperature input unit 8, and connected to the machine 6 and the conditioner via a signal line 9. The controller suitably controls both the heater 2 and the conditioner from the floor surface temperature and indoor temperature. For example, even if the room temperature arrives at the temperature set to the conditioner, if the floor surface temperature is low, the conditioner is continuously operated. Thus, the heater 2 and the conditioner are concerned, and suitable temperature control is realized.

7. 发明专利

JPH09101232A METHOD AND APPARATUS FOR LOCATING LEAKAGE 失效
公开(公告)号：JPH09101232A
公开(公告)日：1997-04-15
申请号：JP15289796
申请日：1996-05-27
申请人： TOKYO GAS CO LTD
发明人： HOSOHARA YASUHARU , SUYAMA KIICHI , HAMADA SHIGERU , MASUKO TOKUSHIGE , FURUKAWA HIDEKI , KOMAKI MICHINORI
IPC分类号： G01M3/00 , G01M3/02 , G01M3/28
摘要： PROBLEM TO BE SOLVED: To provide method and apparatus for easily surely locating leakage of fluid in underground piping. SOLUTION: A channel throttling member 20 having an opening 21 is inserted into piping 11. A flow sensor 40 is arranged on the inner circumferential surface of opening 21 and the channel throttling member 20 is moved, along with the flow sensor 40, in the axial direction of piping 11 by means of a moving unit 30. The moving amount is measured by means of a moving amount detecting sensor 50. When the piping 11 has a leak 13, micro variation of fluid (a) due to leak can be detected by means of the flow sensor 40 and the leakage of fluid (a) is located by detecting the moving amount by means of the sensor 50.

8. 发明专利

JPH0980320A IMAGE FETCHING METHOD OF IN-TUBE INSPECTION DEVICE 失效
公开(公告)号：JPH0980320A
公开(公告)日：1997-03-28
申请号：JP24015395
申请日：1995-09-19
申请人： TOKYO GAS CO LTD
发明人： HAMADA SHIGERU , SUZUKI KIWAMU , KOMAKI MICHINORI
IPC分类号： G02B23/24 , G02B23/26
摘要： PROBLEM TO BE SOLVED: To make it possible fetch an image at a constant viewpoint every time even if a tip member mounting a camera rotates. SOLUTION: The tip member 11 mounting a camera is provided atop of a coil spring 10. While an image is picked up by an objective 15 and a CCD 16 inside the photodetection surface 13 of the tip member 11 and converted into an image signal, a proximity sensor 14 outputs a detection signal (pulse signal) indicating that the tip member 11 reaches a certain specific rotational position and in response to this signal, the image signal of the CCD 16 is transmitted to an inspection device main body through an electric conductor L.

9. 发明专利

JPH0960869A HOT WATER FEEDING DEVICE AND IGNITION MECHANISM DEFECTIVENESS DECIDING METHOD FOR HOT WATER FEEDING DEVICE 失效
公开(公告)号：JPH0960869A
公开(公告)日：1997-03-04
申请号：JP21165295
申请日：1995-08-21
申请人： TOKYO GAS CO LTD
发明人： KUBOTA KAORU , HAMADA SHIGERU , SUZUKI KIWAMU , ITO KOICHIRO , ISHIMOTO MASA , MORITA SATORU
IPC分类号： F23N5/24 , F23N5/22
摘要： PROBLEM TO BE SOLVED: To rapidly and accurately decide that an ignition mechanism is defective by a method wherein an average value of the number of spark ignition operation times required for one burner ignition from data stored for ignition effected in a given number of times computed, and when an average value exceeds a given value, it is decided that the ignition mechanism is defective. SOLUTION: An ignition plug 11 connected to an ignition device 9 and a flame rod 13 to detect a flame are arranged in the vicinity of a burner 10 and a combustion air fan 15 is arranged at a burner 10T part. During the starting of hot water feed operation, a CPU 22a counts the number of times which continuous spark operation of an ignition plug 11 by an ignition device 9 is repeated until the burner 10 is ignited or counts a time in which after ignition operation is entered, the burner is actually ignited. A memory 24 being a fixed memory device stores in a time series way and monitors the time series change of the number of spark operation times or an ignition time. When the average value of the number of spark ignition operation times required for one cycle of burner ignition exceeds a given value, it is decided that the ignition device 9 is defective.

10. 发明专利

JPH0944257A HOT WATER SUPPLIER 失效
公开(公告)号：JPH0944257A
公开(公告)日：1997-02-14
申请号：JP19565795
申请日：1995-08-01
申请人： TOKYO GAS CO LTD
发明人： KUBOTA KAORU , ITO KOICHIRO , HAMADA SHIGERU , SUZUKI KIWAMU , ISHIMOTO MASA , MORITA SATORU
IPC分类号： F23N5/24 , F23N5/14 , F24H1/00 , F24H1/46 , G05D23/00 , G05D23/24
摘要： PROBLEM TO BE SOLVED: To provide a hot water supplier with which the sensitivity degradation of a bath thermistor for detecting the temperature of water in a bathtub can be detected when additionally heating the water in the bathtub. SOLUTION: Concerning a hot water supplier 1 which is provided with feeding hot water thermistor 6 for detecting the temperature of hot water at the time of hot water supply and a bath thermistor 7 for detecting the temperature of water in the bathtub and supplies hot water passed through the feeding hot water thermistor 6 and the bathtub thermistor 7 into the bathtub at the time of feeding hot water, when the difference between the temperature detected by the feeding hot water thermistor 6 and the temperature detected by the bath thermistor 7 is not settled within the prescribed temperature range after the lapse of prescribed time from the start of hot water feeding, the defect of the bath thermistor 7 is judged.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式