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1. 发明专利

JPH06265177A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH06265177A
公开(公告)日：1994-09-20
申请号：JP7871793
申请日：1993-03-12
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP , KAMIYA YOSHIYUKI
发明人： HASHIMOTO NOBUYUKI , KIMURA YUICHI , SOTANI JIYUNJI , SAGAWA YUICHIRO , OI TORU , MORI NAOKI , KAMIYA YOSHIYUKI
IPC分类号： F24F5/00 , F25B29/00
摘要： PURPOSE:To attain energy-saving by conducting a cooling operation through the year for a part of a building and by conducting a cooling, heating or cooling-heating operation for another part thereof in accordance with seasons. CONSTITUTION:Cooling of a part of a building for which a cooling operation is conducted through the year is conducted by a natural circulation system utilizing a phase change of a refrigerant. Air-conditioning of a part of the building for which cooling, heating or cooling-heating is conducted in accordance with seasons is conducted by a multiple system for the building wherein one outdoor unit 3 and a plurality of indoor air-conditioning units 6a and 6b are connected by refrigerant pipings 10a, 10b, 11a and 11b. Condensation of refrigerant vapor evaporated by cooling of the part of the building for which the cooling operation is conducted through the year is conducted by a cold heat from a cold heat source device 1, and a cooling exhaust heat exhausted from this cold heat source device 1 is collected and used as a hot heat source in a heating operation of the outdoor unit 3. According to this constitution, energy- saving can be attained and also the energy can be used effectively.

2. 发明专利

JPH06265176A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH06265176A
公开(公告)日：1994-09-20
申请号：JP7871693
申请日：1993-03-12
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP , KAMIYA YOSHIYUKI
发明人： KIMURA YUICHI , HASHIMOTO NOBUYUKI , SOTANI JIYUNJI , SAGAWA YUICHIRO , OI TORU , MORI NAOKI , KAMIYA YOSHIYUKI
IPC分类号： F24F5/00 , F25B29/00
摘要： PURPOSE:To attain energy-saving by a method wherein condensation of refrigerant vapor obtained through heat exchange with indoor air is conducted by a cold heat supplied from a cold heat source device, while it is conducted by utilizing a temperature difference from low-temperature outdoor air in a cold time. CONSTITUTION:In a cooling operation in the summer period, refrigerant vapor obtained through heat exchange with indoor air by each of indoor units 4a and 4b is cooled down and condensed by a cold heat supplied from a cold heat source device 1. A refrigerant liquid thus obtained flows down under the gravity and returns to each of the indoor units 4a and 4b again and a cooling cycle based on natural circulation is repeated. In a cooling operation in a cold time such as the winter period, the refrigerant vapor obtained through the heat exchange with the indoor air is cooled down and condensed by the cold heat sent from the cold heat source device, in the same way as in the summer period, while it is cooled down and condensed by utilizing low-temperature outdoor air effectively. According to this constitution, energy can be used effectively and energy-saving can be attained.

3. 发明专利

JPH06265178A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH06265178A
公开(公告)日：1994-09-20
申请号：JP7871893
申请日：1993-03-12
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP , KAMIYA YOSHIYUKI
发明人： HASHIMOTO NOBUYUKI , KIMURA YUICHI , SOTANI JIYUNJI , SAGAWA YUICHIRO , OI TORU , MORI NAOKI , KAMIYA YOSHIYUKI
IPC分类号： F24F5/00 , F25B29/00
摘要： PURPOSE:To attain energy-saving by a method wherein a cooling exhaust heat exhausted from a cold heat source device is collected and stored in a hot water heat storage tank and used as a hot heat source in a heating operation of an outdoor unit. CONSTITUTION:Cooling of a part of a building for which a cooling operation is conducted through the year is conducted by a natural circulation system utilizing a phase change of a refrigerant. Condensation of the refrigerant evaporated by the cooling of the part of the building for which the cooling operation is conducted through the year is conducted by a cold heat from a cold heat source device 1, and a cooling exhaust heat exhausted from this cold heat source device 1 is collected and stored in a hot water heat storage tank 4 and used as a hot heat source in a heating operation of an outdoor unit 5. The cold heat of the cold heat source device 1 is stored in a heat storage tank 1a in the night by utilizing an inexpensive midnight power. According to this constitution, energy-saving can be attained and also the energy can be used effectively.

4. 发明专利

JPH06265174A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH06265174A
公开(公告)日：1994-09-20
申请号：JP7871993
申请日：1993-03-12
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP , KAMIYA YOSHIYUKI
发明人： HASHIMOTO NOBUYUKI , KIMURA YUICHI , SOTANI JIYUNJI , SAGAWA YUICHIRO , OI TORU , MORI NAOKI , KAMIYA YOSHIYUKI
IPC分类号： F24F5/00
摘要： PURPOSE:To attain reduction of a running cost and energy-saving by adopting a natural circulation system based on a phase change of a refrigerant for cooling of a building and by using an electric heater for heating thereof. CONSTITUTION:A cooling operation for a building is conducted by a natural circulation system wherein a refrigerant produced by an indoor cooling load is condensed by a cold heat sent from a cold heat source device 1 and a refrigerant liquid thus obtained is returned to each of indoor units 3a, 3b, 4a and 4b again under the gravity. In this case, the cold heat of the cold heat source device 1 is stored in an ice heat storage tank 1a by utilizing an inexpensive midnight power and used as cold water in the daytime. A heating operation for the building is conducted by electric heaters 5a and 5b incorporated in the indoor units 4a and 4b. According to this constitution, a running cost can be reduced and also energy-saving can be attained.

5. 发明专利

JPH06265173A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH06265173A
公开(公告)日：1994-09-20
申请号：JP7871593
申请日：1993-03-12
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP , KAMIYA YOSHIYUKI
发明人： KIMURA YUICHI , HASHIMOTO NOBUYUKI , SOTANI JIYUNJI , SAGAWA YUICHIRO , OI TORU , MORI NAOKI , KAMIYA YOSHIYUKI
IPC分类号： F24F5/00
摘要： PURPOSE:To make it possible for an air-conditioning system to meet the demand for cooling and heating in a multistoried building as well, by cooling and heating indoor spaces by natural circulation of a refrigerant based on a phase change thereof. CONSTITUTION:Indoor units 5a and 5b of floors F1 and F2 have cooling and heating coils provided inside and are so designed that they can be used as cooling or heating units by selecting either one of the coils. The cooling coils are connected to corresponding heat exchangers 3a and 3b through cooling piping systems comprising refrigerant vapor pipes 10a and refrigerant liquid pipes 10b, respectively, while the heating coils are connected to corresponding heat exchangers 4a and 4b through heating piping systems comprising refrigerant vapor pipes 11a and refrigerant liquid pipes 11b, respectively. A refrigerant is sealed inside each of the cooling and heating piping systems and indoor spaces are cooled or heated by natural circulation of this refrigerant based on a phase change thereof. According to this constitution, an air-conditioning system can meet the demand for cooling and heating in a multistoried building as well.

6. 发明专利

JPH06265175A AIR-CONDITIONING SYSTEM 失效
公开(公告)号：JPH06265175A
公开(公告)日：1994-09-20
申请号：JP7871493
申请日：1993-03-12
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP , KAMIYA YOSHIYUKI
发明人： HASHIMOTO NOBUYUKI , KIMURA YUICHI , SOTANI JIYUNJI , KOTANI MASAHIRO , SAGAWA YUICHIRO , OI TORU , MORI NAOKI , KAMIYA YOSHIYUKI
IPC分类号： F24F5/00 , F25B29/00
摘要： PURPOSE:To attain energy-saving by using a plurality of heat storage tanks as heat storage tanks for cold heat sources in a cooling operation and by using a part of the heat storage tanks as a heat storage tank for hot heat in a cooling-heating operation. CONSTITUTION:In a cooling operation, both of heat storage tanks 1a and 1b serve as heat storage tanks for cold heat sources and both of heat exchangers 2a and 2b operate as evaporators inside, while a heat exchanger 3 provided separately from the heat storage tanks 1a and 1b operates as a condenser. Thereby cooling of each room is executed. In a cooling-heating operation, the heat storage tanks 1a and 1b in a plurality are divided into the heat storage tank for the cold heat source and a heat storage tank for a hot heat source and the heat exchanger 2a of the heat storage tank 1a for the cold heat source operates as the evaporator, while the heat exchanger 2b of the heat storage tank 1b for the hot heat source operates as the condenser. Thereby cooling and heating of each room are executed. According to this constitution, energy- saving can be attained and also the energy can be used effectively.

7. 发明专利

JPH07218164A TOP HEAT TYPE HEAT PIPE 失效
公开(公告)号：JPH07218164A
公开(公告)日：1995-08-18
申请号：JP883994
申请日：1994-01-28
申请人： FURUKAWA ELECTRIC CO LTD , KAMIYA YOSHIYUKI
发明人： HASHIMOTO NOBUYUKI , SOTANI JIYUNJI , KAWABATA KENYA , KAMIYA YOSHIYUKI
IPC分类号： F28D15/02
摘要： PURPOSE:To carry out a more stable heat supplying, by a method wherein an interval of motion cycle of liquid from an adjusting tank to an evaporator is prolonged or extended and a moving speed of liquid from an auxiliary tank to the evaporator is relatively made slow. CONSTITUTION:Working liquid (a) is naturally circulated in a heat pipe due to a change of balanced state between an inner pressure of evaporator 1 and auxiliary tank 3 and an inner pressure of an adjustment tank 4. A liquid phase communicating part 31 between the auxiliary tank 3 and the evaporator 1 has a larger flow passage resistance than that of a second liquid pipe 71, and an amount of liquid flowing from the auxiliary tank 3 to the evaporator 1 is lower than an amount of liquid flowing from the adjustment tank 4 to the auxiliary tank 3 in a specified period of time. An ascending speed of liquid surface within the evaporator 1 is slower than an ascending speed of the liquid surface of the auxiliary tank 3, a time in which a control valve 8 is opened is relatively extended and an amount of working liquid (a) moved under an opening or a closing operation of once at the control valve 8 is increased more, so that the motion cycle of the working liquid (a) is extended. With such an arrangement as above, a variation cycle of temperature of each of the evaporator 1 and the condensor 2 as well as a heat exchanging amount is also extended.

8. 发明专利

JPH0791870A TOP HEAT TYPE HEAT PIPE, COOLING SYSTEM AND HEATING SYSTEM 失效
公开(公告)号：JPH0791870A
公开(公告)日：1995-04-07
申请号：JP601194
申请日：1994-01-24
申请人： FURUKAWA ELECTRIC CO LTD , KAMIYA YOSHIYUKI
发明人： KIMURA YUICHI , HASHIMOTO NOBUYUKI , SOTANI JIYUNJI , KAMIYA YOSHIYUKI
IPC分类号： F28D15/02 , F28D15/06
摘要： PURPOSE:To provide a top heat type heat pipe, a cooling system and a heating system which require no special outside power for the circulation of a working liquid. CONSTITUTION:An adjustment tank 4, which communicates with a vapor phase area of a vaporizer 1, is installed to a higher elevation than the maximum liquid level of the vaporizer 1. The vapor phase area of the vaporizer 1 is made to communicate with a condenser 2, which is installed to a lower elevation than the vaporizer 1, with a steam pipeline 6 while the condenser 2 and the adjustment tank 4 are made to communicate with a liquid pipeline 7. At a communication unit between the vaporizer 1 and the adjustment tank 4, there is installed a control valve 8, which is opened when the liquid level of the adjustment tank 4 is below a specified level or when the liquid level of the adjustment tank 4 exceeds the specified level. An auxiliary tank 3, which is made to communicate with the vaporizer 1 in the vapor phase and the liquid phase on the same level, is installed to the vaporizer 1. The adjustment tank 4 is made to communicate with the auxiliary tank 3. In this case, the liquid level is detected at the auxiliary tank 3.

9. 发明专利

JPH05296685A 失效
公开(公告)号：JPH05296685A
公开(公告)日：1993-11-09
申请号：JP11801192
申请日：1992-04-10
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP
发明人： IIDA YOSHITAKA , SOTANI JIYUNJI , MABUCHI MINORU , MORI NAOKI , OI TORU
IPC分类号： F28F13/02
摘要： PURPOSE:To facilitate the generation of boiling of operating liquid at a low flow speed and improve heat transfer rate by a method wherein an inner tube is inserted into the evaporating section of an outer tube with a flow gap while the thickness of fins at a part, whereat the lower side part of the inner tube is positioned, is formed so as to be thicker compared with the other part of the outer tube. CONSTITUTION:A cooling unit is provided with several pieces of heat transfer tubes 1, arranged in parallel under upright condition and provided with a multitude of fins around the periphery of the same while having a given length, and respective upper and lower ends of respective heat transfer tubes 1 are connected to upper and lower header tubes. In this case, respective heat transfer tubes 1 are constituted of outer tubes 10 made by steel tubes and inner tubes 11 inserted into the evaporating part of the outer tubes 10. Projections 12, projected at the lower end of the inner tube 11 toward the outer tube 10, are projected with a given space while both tubes 10, 11 are fixed to each other with a flowing gap 13 through the projections 12. The thickness of fins 40 on a part whereat the lower side part of the inner tube is positioned is formed so as to be thicker than other fins 4 whereby operating liquid in this part is readily boiled continuously and, therefore, heat transfer rate can be improved.

10. 发明专利

JPH05296478A 失效
公开(公告)号：JPH05296478A
公开(公告)日：1993-11-09
申请号：JP11801292
申请日：1992-04-10
申请人： FURUKAWA ELECTRIC CO LTD , TAISEI CORP
发明人： IIDA YOSHITAKA , SOTANI JIYUNJI , MORI NAOKI , OI TORU
IPC分类号： F24F1/00
摘要： PURPOSE:To provide an individually dispersing type heat exchanger of which the installation condition is not restricted by an OA disk by a method wherein a cooling unit is contained in a box body of a partition, and the partition is arranged in the vicinity of an OA appliance. CONSTITUTION:In a box body which forms a partition 1, a fan 2 for exhaust hot air which draws in the air in a room, a cooling unit 3 which cools the drawn in air, and a flap 4 to guide the cooled air upward are provided, and the front upper half of the box body, an air plenum 5 which communicates with the inside and outside is provided. The partition 1 is arranged to be close to an OA appliance, and hot air which is discharged from the OA appliance is drawn in by the fan 2 to draw the exhaust hot air. The hot air drawn by the fan to draw air 2 becomes cool air by being heat-exchanged by the cooling unit 3, and moves upward in the partition 1. The cool air which has moved to the upper part of the partition 1 is evenly flowed out to the outside from the air plenum 5.

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