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1. 发明专利

JP2001248906A EXHAUST HEAT RECOVERING HOT WATER SUPPLY SYSTEM 失效
公开(公告)号：JP2001248906A
公开(公告)日：2001-09-14
申请号：JP2000064000
申请日：2000-03-08
申请人： TOKYO GAS CO LTD , NORITZ CORP
发明人： OUCHI KENJIRO , OZU TSUTOMU , ASAKURA HIROSHI , WAKATA TAKESHI , MIYAKE TOMIO , SHIROTANI TOMOHIKO , MOTOOKA HIDENORI , MORIGAKI TAKAO
IPC分类号： F24H1/00 , F24H1/18 , H01M8/00
摘要： PROBLEM TO BE SOLVED: To obtain an exhaust heat recovering hot water supply system for heating water in a hot water storage tank by circulating heating medium between a gas engine and the hot water storage tank in which dew formation is prevented in an exhaust heat generating unit when the temperature of hot water in the hot water storage tank is low. SOLUTION: A cooling water circulation passage 4 is constituted by coupling a primary heat exchanger 5 disposed in a gas engine 2 with a secondary heat exchanger 6 disposed in a hot water storage tank 12 through a cooling water return pipe 7 and a cooling water supply pipe 8. The cooling water supply pipe 8 is provided with a mixing valve 10 comprising a thermowax valve and a bypass pipe 11 is laid between the cooling water return pipe 7 and the mixing valve 10. When the temperature of hot water flowing through the cooling water supply pipe 8 drops, the mixing valve 10 opens the bypass pipe 11 to feed high temperature hot water from the cooling water return pipe 7 to the cooling water supply pipe 8.

2. 发明专利

JP2000018768A HEAT TRANSFER TUBE FOR AIR-COOLED ABSORPTION REFRIGERATING MACHINE AND ABSORBER 失效
公开(公告)号：JP2000018768A
公开(公告)日：2000-01-18
申请号：JP17707698
申请日：1998-06-24
申请人： TOKYO GAS CO LTD , TAKAGI KOGYO KK
发明人： OZU TSUTOMU , FUJIMAKI OKIE , ENJOJI KEITA , HASHIMOTO KUNINORI
IPC分类号： F28F13/02 , F25B37/00
摘要： PROBLEM TO BE SOLVED: To enhance wettability of a heat transfer tube by forming a rough surface subjected to blasting on the inner surface of the heat transfer tube. SOLUTION: Absorbing solution (concentrated solution) being fed from a regenerator is passed through a solution distributing pipe 7 and sprayed from each spray nozzle 8 to the uppermost part 9 of the inner surface of a heat transfer tube 4. The sprayed solution flows down on the inner surface of each heat transfer tube 4 being roughened by blasting while absorbing refrigerant vapor being introduced from an evaporator into the heat transfer tube 4 through an upper header 2. After absorbing the refrigerant vapor, the absorbing solution (diluted solution) is collected in a lower header 3 and returned back to the regenerator. White fused alumina having grain size of #16 (JIS R6001) is employed as an abrasive material for blasting the inner surface of the heat transfer tube 4. Pressure of compression air is set at about 5 kg/cm2.

3. 发明专利

JPH0379967A DOUBLE EFFECT ABSORPTION REFRIGERATING APPARATUS 失效
公开(公告)号：JPH0379967A
公开(公告)日：1991-04-04
申请号：JP21527589
申请日：1989-08-22
申请人： TOKYO GAS CO LTD , SANYO ELECTRIC CO
发明人： KUROSAWA MOKICHI , MASUDA YOSHITO , SEKIKAWA ATSUSHI , OZU TSUTOMU , KOBAYASHI TADAHITO , IKUMI YONEZO , TANAKA TAKAO
IPC分类号： F25B15/00
摘要： PURPOSE:To effect a smooth mixing of a concentrated liquid from a high temperature heat exchanger and a medium concentrated liquid from a low temperature regenerator and enhance the heat transmitting performance of such mixture in a low temperature heat exchanger by providing a medium concentrated liquid pump in an intermediate concentrated liquid pipe for a low temperature regenerator to a low temperature heat exchanger. CONSTITUTION:A refrigerant vapor from a high temperature regenerator 1 is separated by a gas-liquid separator 2 and heats a diluted liquid in a low temperature regenerator 3 so as to be condensed into a liquid. The refrigerant vapor produced in the low temperature regenerator 3 is liquefied in a condenser 8, the refrigerant liquid is dispersively dropped by an evaporator 17 and, by the resulting gasification, the cold water passing through a tube is cooled. A concentrated liquid from the high temperature regenerator 1, after passage through a high temperature heat exchanger 4, is introduced into an outlet pipe of a medium concentrated liquid pump 6, mixed with a medium concentrated liquid sent out form the low temperature regenerator 3 and delivered to a low temperature heat exchanger 5. Since the mixed concentrated liquid is forced into the low temperature heat exchanger 5 by the discharge pressure of the medium concentrated liquid pump 6, the heat transmitting perfor mance of the low temperature heat exchanger 5 is enhanced and a low heat transmitting area can be reduced. By an appropriate control of the amount of a diluted liquid flowing into the high temperature regenerator 1, the startup of the operation can be made smooth.

4. 发明专利

JPH0339871A LONGITUDINAL HIGH TEMPERATURE REGENERATOR DEVICE FOR GAS ABSORBING COLD/HOT WATER MACHINE 失效
公开(公告)号：JPH0339871A
公开(公告)日：1991-02-20
申请号：JP17326989
申请日：1989-07-05
申请人： TOKYO GAS CO LTD
发明人： KUROSAWA MOKICHI , NAKAMURA SHIGERU , OZU TSUTOMU
IPC分类号： F25B33/00
摘要： PURPOSE:To improve heat efficiency and make compact a regenerator device by providing inner line blocking plates and outer line blocking plates among inner line fluid tubes in fluid tubes and among outer line fluid tubes in the same, and an upper communication part on the tops of the inner line blocking plates and a lower communication part on the bottoms of the outer line blocking plates. CONSTITUTION:Combustion gas produced in a burner 10 moves upward in a parallel flow heat exchanger 5. The combustion gas at the top of the parallel flow heat exchanger 5 traverses an upper communication part and is separated to both sides of the same, and is lowered to exchange heat with the fluid moving upward in the fluid tube 3 upon its traversing the upper communication path 7. The combustion gas is lowered along between the inner line fluid tubes 3a and the outer line fluid tubes 3b. Further, since a fin is mounted on the fluid tube 3b in the lower communication part 8, the combustion gas moves upward while being sufficiently absorbed in its heat upon its traversing the lower communication part 8 and is discharged through an exhaust vent in an exhaust part 11. Heat exchange of the fluid moving along the fluid tube 3 with the combustion gas can be altered to a parallel flow type, a cross type, and a counter flow type as the gas temperature is lowered to result in the number of paths increased, and so heat efficiency is greatly improved.

5. 发明专利

JP2004257072A CONFIRMATION AND CONTROL SYTEM FOR LOCKING CONDITION 审中-公开
公开(公告)号：JP2004257072A
公开(公告)日：2004-09-16
申请号：JP2003047740
申请日：2003-02-25
申请人： TOKYO GAS CO LTD
发明人： SUGANO KATSUICHI , ISHIKAWA KIYOHISA , ASANO KIMI , OZU TSUTOMU , YOKOYAMA MUTSUTO
IPC分类号： E05B49/00 , E05B41/00 , E05B45/06 , G08B13/06
摘要： PROBLEM TO BE SOLVED: To provide a locking condition confirmation and control system in which a locking histeresis can be confirmed, simple in mounting operation, preventing picking, confirming the locked condition, and locking/unlocking by a specified lock. SOLUTION: In a locked condition confirmation control system in which a server computer 5, a lock terminal device 21, and a portable terminal device 41 are connected together through a network 9, and a locking remote controller 29 is connected through a radio in the lock terminal device 21, The lock terminal device 21 works discrimination of the locking remote controller 29, control of locking/unlocking, monitoring of the locking/unlocking, recording of the locking condition hysteresis data 200, etc. When the lock terminal device 21 is kept in the opened state for a certain time interval, it is informed to the portable terminal device 41 through the server computer 5. The lock terminal device 21 locks/unlocks on the basis of the request from the portable terminal device 41 through the server computer 5 or the operation of the lock remote controller 29. COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JPH11182965A AIR CONDITIONER AND AIR CONDITIONING METHOD USING ABSORPTION HOT AND CHILLED WATER GENERATOR 失效
公开(公告)号：JPH11182965A
公开(公告)日：1999-07-06
申请号：JP35670397
申请日：1997-12-25
申请人： TOKYO GAS CO LTD
发明人： OZU TSUTOMU , ENJOJI KEITA
IPC分类号： F24F11/02 , F25B15/00
摘要： PROBLEM TO BE SOLVED: To realize a comfortably dehumidified space while keeping the room temperature without requiring any extra energy for reheating by providing an absorption hot and chilled water generator with means for discharging a part of waste heat from a condenser to the atmosphere, and a waste heat hot water circuit for feeding the remainder of waste heat to a reheater. SOLUTION: When the opening of a fuel supply valve 13 is increased, separation of refrigerant is accelerated in a reheater 102 to increase the volume of refrigerant to be evaporated in an evaporator 103 and the temperature of cold heat carrier being supplied to a cold heat carrier heat exchanger 21 decreases. Consequently, the surface temperature of a coil in the heat exchanger 21 decreases and the temperature of circulation wind passed through the heat exchanger 21 is controlled to an operated set dew point. When the opening of a flow control valve increases, waste heat hot water supply to a reheater 2 increases and the circulation wind passed through the heat exchanger 21 is reheated and controlled to a target room temperature thus realizing a target indoor environment.

7. 发明专利

JPH10196980A AIR SUPPLY/CIRCULATION UNIT FOR DUCT TYPE AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH10196980A
公开(公告)日：1998-07-31
申请号：JP35051996
申请日：1996-12-27
申请人： TOKYO GAS CO LTD
发明人： OZU TSUTOMU , ASAWA YASUHISA , TANOKASHIRA KENICHI , TSUDA HIROYUKI
IPC分类号： F24F7/08 , F24D5/02 , F24D5/04
摘要： PROBLEM TO BE SOLVED: To spread a duct type air-conditioning system by presenting an air supply/circulation system for general home. SOLUTION: The air supply port 4b of an outdoor unit 4 is coupled with unitized diffuser side flexible coupling tube 5, a coupling joint 6, an air supply duct 7, a wall corner 8, and a diffuser silencer 2 and then an air suction port is coupled with a suction side flexible coupling tube 3 in order to enhance the workability. Suction port and diffuser port silencers 1, 2 formed of a thermally insulating acoustic material 1g into nozzle shape are built in the suction port and diffuser port in order to suppress noise.

8. 发明专利

JPH07269982A HEAT PUMP DEVICE 失效
公开(公告)号：JPH07269982A
公开(公告)日：1995-10-20
申请号：JP5723894
申请日：1994-03-28
申请人： TOKYO GAS CO LTD
发明人： OZU TSUTOMU
IPC分类号： F25B1/00 , F25B13/00 , F25B27/00
摘要： PURPOSE:To improve a partial load efficiency by a method wherein a speed changing means fixed to a rotation inputting part of a compressor is changed over to change the turn-down ratio of the compressor. CONSTITUTION:Pulleys 11 and 12 having the same diameter are fixed to a driving rotational shaft 10 of a gas engine. A large diameter input pulley 14 and a small diameter input pulley 15 are fixed in two stages to an input rotary shaft 13 at a compressor Pulleys 11 and 15 and pulleys 12 and 14 are connected by each of belts 16 and 17, thereby a rotation of the gas engine is transmitted to the compressor. A turn-down ratio at the compressor is expanded by changing a rotational ratio between the engine and the compressor. For example, in the case that the number of rotations of the engine is 1000 to 3000rpm (the turn-down ratio of 3), the speed changing means is set in such a way that the rotational ratio between the engine and the compressor is set to have two stages of 1.2 and 1.6, the number of rotation of the compressor becomes 1200 to 4800rpm and the turn-down ratio becomes 4. As a result, it is possible to improve a partial load efficiency.

9. 发明专利

JPH0835731A HEAT PUMP 失效
公开(公告)号：JPH0835731A
公开(公告)日：1996-02-06
申请号：JP17065594
申请日：1994-07-22
申请人： TOKYO GAS CO LTD
发明人： OZU TSUTOMU
IPC分类号： F25B13/00
摘要： PURPOSE:To increase the capacity control range by providing two outdoor heat exchangers, and using one of the exchangers as an evaporator at the time of cooling or as a condenser at the time of heating when air conditioning load is a set value or less. CONSTITUTION:At the time of heating with high load, refrigerant fed from a compressor 2 is fed through a four-way valve 5, an indoor heat exchanger gas line 4, indoor units 12, a receiver tank 9, a main outdoor heat exchanger line 3 and a suboutdoor heat exchanger line 3a, a main outdoor heat exchanger 6a and a sub outdoor heat exchanger 6b, a bypass line 15 and the valve 5 to the compressor 2, the exchangers 6a, 6b are used as evaporators to maintain a heating capacity large. On the other hand, at the time of heating with low load, the refrigerant fed to the line 4 is branched to the unit 12 side and the line 15 side as it is, the exchanger 6b is used as the condenser, thereby reducing the heating capacity.

10. 发明专利

JPH06147586A ROOM TEMPERATURE CONTROL METHOD IN AIR CONDITIONING SYSTEM 失效
公开(公告)号：JPH06147586A
公开(公告)日：1994-05-27
申请号：JP29358592
申请日：1992-10-30
申请人： TOKYO GAS CO LTD
发明人： OZU TSUTOMU
IPC分类号： F24F11/02
摘要： PURPOSE:To prevent one from feeling hot or cold with the temperature of outside air by correcting a setting temperature based on a temperature detected with an outside air temperature detection sensor so as to calculate a target temperature and controlling an air conditioning system based on this target temperature. CONSTITUTION:Cooling operation is carried out by circulating refrigerant in indoor equipment 2 by way of a pipeline 3 with a compressor incorporated in outdoor equipment 1. During this operation, a control circuit 8 in the indoor equipment 2 shifts a setting temperature to a lower value in the case when the open air temperature input from an outside air temperature detection sensor 6 is higher than the setting temperature, which applies to cooling operation. In the case of heating, the setting temperature is shifted to a higher value when the outside air temperature is lower than the setting temperature. This makes is possible to prevent from feeling hot or cold with the outside air temperature during cooling and hating operation.

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