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1. 发明专利

JP2000055444A AIR CONDITIONER 失效
公开(公告)号：JP2000055444A
公开(公告)日：2000-02-25
申请号：JP22455998
申请日：1998-08-07
申请人： NTT POWER & BUILDING , NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , WARATANI SHISEI , CHIBA KAZUO , SASAKI AKIRA
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To provide an air conditioner in which appropriate temperature/humidity control can be exhibited fully by reheat function while performing energy saving operation at an efficiency as high as possible when the outer air temperature is low in winter season, or the like. SOLUTION: The air conditioner comprises a three-way valve 21 (or an outdoor fan 8) for regulating the refrigerant pressure (=condensation pressure) of a condenser 12. The three-way valve (or an outdoor fan 8) is operated in the direction for increasing the condensation pressure when an expansion valve 13 is opened fully based on degree of superheat control due to outer air temperature drop, compression ratio of the compressor 11 decreases below a lowest allowable ratio, or the reheating quantity of a reheater 16 decreases below a specified level.

2. 发明专利

JP2000154929A INDIRECT OUTDOOR AIR COOLING DEVICE 失效
公开(公告)号：JP2000154929A
公开(公告)日：2000-06-06
申请号：JP33077398
申请日：1998-11-20
申请人： NTT POWER & BUILDING , NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , WARATANI SHISEI , YANAGI MASAHIDE , SASAKI AKIRA
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To readily and surely maintain a room temperature at a set value by increasing the capacity of an outdoor side blower when detected room temperature is not less than the set value, and decreasing the capacity of the outdoor side blower when the detected temperature is less. than the set value. SOLUTION: A coolant pump 1, an evaporator (indoor heat exchanger) 2 and a condenser (outdoor heat exchanger) 3 are successively connected through pipes. An indoor side blower 4 is provided for the evaporator 2, and a room temperature detector 5 for serving as a room temperature detecting means is provided at a suction path of the blower 4. Further, an outdoor side blower 6 is provided for the condenser 3. The blower 6 is driven and controlled as to its capacity by a blower driving circuit 13. A controller 20 comprises a control means as a main functioning means which increases the capacity of the blower 6 when the temperature detected by the room temperature sensor 5 is not less than a set value and decreases the capacity of the blower 6 when the detected temperature is less than the set value.

3. 发明专利

JP2000055437A AIR CONDITIONER 失效
公开(公告)号：JP2000055437A
公开(公告)日：2000-02-25
申请号：JP22455898
申请日：1998-08-07
申请人： NTT POWER & BUILDING , NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , WARATANI SHISEI , CHIBA KAZUO , SASAKI AKIRA
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To obtain an excellent temperature-controlling property by preventing indoor temperature fluctuation with a change of the number of operating units of compressors by a method wherein at a time of shifting operation of one unit of the compressor to operation of two units of the compressors according to increase of a cooling load, reheating volume of a reheater is set to maximum once together with starting of a second compressor, and then the reheating volume is allowed to reduce. SOLUTION: When compressors 11, 21 in a first and a second refrigerating cycles are operated, a gaseous refrigerant is liquefied by condensers 12, 22 of an outdoor unit 10, and refrigerant liquid is depressurized by expansion valves 13, 23, then flowing into evaporators 14, 24 of an indoor unit 1, and there absorbing heat from indoor air to evaporate, wherein according to increase of a cooling load (a difference between a detected temperature by an indoor temperature sensor 5 and an indoor setting temperature by an operating controller 6) in a control device, operation of one unit of the compressor 11 is shifted to operation of two units of the compressors 11, 21. At a time of shifting to operation of two units, reheating volume of a reheater 32 is once maximized together with starting of the compressor 21, and from a state of which the reheating volume is allowed to reduce, and capacity of the compressor 11 is controlled to reduce.

4. 发明专利

JP2000205697A AIR-CONDITIONER 失效
公开(公告)号：JP2000205697A
公开(公告)日：2000-07-28
申请号：JP104599
申请日：1999-01-06
申请人： NTT POWER & BUILDING , NIPPON TELEGRAPH & TELEPHONE
发明人： WARATANI SHISEI , UEKUSA TSUNEO , CHIBA KAZUO , SASAKI AKIRA
IPC分类号： F25B31/00
摘要： PROBLEM TO BE SOLVED: To decrease the condensation pressure of a refrigerant in a condenser, at the same time increase the condensation pressure of the refrigerant in a reheater, and obtain sufficient reheating capacity, by providing a second compressor at the piping between the discharge side of a first compressor and the reheater and further compressing one portion of the refrigerant by the second compressor and supplying it to the reheater. SOLUTION: A high-pressure gas-shaped refrigerant that is discharged from a first compressor 1 being driven by an inverter 21 is guided to a condenser 2 via a three-way valve 11 and is allowed to exchange heat with the fresh air for condensation, and the obtained high-pressure liquid refrigerant is guided to an inflation valve 5 via a receiver 4. The pressure is reduced here as a low-pressure liquid gas mixture refrigerant and is allowed to exchange heat with indoor air at an evaporator 6 at an indoor side for evaporation, thus cooling the indoor air. In this case, a second compressor 31 is provided at piping 14 between the three-way valve 11 and a reheater 12. Then, during a period ranging from a middle term to a winter term when the temperature of the fresh air is low, a high-pressure gas for increasing reheating capacity is supplied by operating the second compressor 31, and an operation where the compression ratio of the first compressor 1 is low and a condensation pressure is low is executed.

5. 发明专利

JP2000055446A INDIRECT OUTDOOR AIR COOLER 失效
公开(公告)号：JP2000055446A
公开(公告)日：2000-02-25
申请号：JP22456198
申请日：1998-08-07
申请人： NTT POWER & BUILDING , NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , WARATANI SHISEI , YANAGI MASAHIDE , SASAKI AKIRA
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To avoid a drop of an indoor humidity or a drop of a cooling capacity by providing a pressure sensing means for sensing a refrigerant pressure of an indoor heat exchanger, and controlling an air volume of an outdoor side blower so that the sensed pressure does not become less than a set value, thereby preventing an excess drop of the refrigerant pressure of the exchanger. SOLUTION: Gas refrigerant output from an evaporator 2 is supplied to a condenser 3 as it is, cooled with low temperature outdoor air in the condenser 3, liquefied, and delivered to a refrigerant pump 1. The liquid refrigerant is pressurized by the pump 1, and guided to the evaporator 2. The refrigerant cools indoor air by the evaporator 2 to be gasified and again returns to the condenser 3. During such a cooling operation, a sensed pressure of a pressure sensor 10 is compared with a pressure lower limit set value by a controller 20. If the sensed pressure lowers less than the set value, an air volume of an outdoor side blower 5 is reduced. Thus, a heat transfer rate out of a tube of the condenser (outdoor heat exchanger) 3 is lowered, the refrigerant pressure of the condenser 3 is raised, and the refrigerant pressure of the evaporator 2 is raised.

6. 发明专利

JP2000055436A AIR CONDITIONER 失效
公开(公告)号：JP2000055436A
公开(公告)日：2000-02-25
申请号：JP22455798
申请日：1998-08-07
申请人： NTT POWER & BUILDING , NIPPON TELEGRAPH & TELEPHONE
发明人： UEKUSA TSUNEO , WARATANI SHISEI , CHIBA KAZUO , SASAKI AKIRA
IPC分类号： F24F11/02
摘要： PROBLEM TO BE SOLVED: To enable operations prioritizing both energy conservation property and temperature/humidity-controlling property by a method wherein first control means for implementing temperature and humidity control mainly including variable capacity movement of a compressor or a second control means for implementing temperature and humidity control mainly including operation of a reheater is allowed to operate selectively. SOLUTION: When compressors 11, 21 in a first and a second refrigerating cycles are operated, a gaseous refrigerant is liquefied by condensers 12, 22 of an outdoor unit 10, and refrigerant liquid is depressurized by expansion valves 13, 23, then flowing into evaporators 14, 24 of an indoor unit 1 and there absorbing heat inside a room to evaporate, wherein temperature and humidity control mainly including variable capacity movement of the compressor 11 in the first refrigerating cycle by a control apparatus 4 for inputting output signals of an indoor temperature sensor 5 and the like or temperature and humid control mainly including operation of reheater 32 opening a flow control valve 31 in the second refrigerating cycle is selected by a controller 6. Thereby operation of an energy conservation property or operation a temperature/humidity controlling property is prioritized.

7. 发明专利

JP2002163689A TICKET MANAGING METHOD USING IC CARD 失效
公开(公告)号：JP2002163689A
公开(公告)日：2002-06-07
申请号：JP2000362899
申请日：2000-11-29
申请人： NTT POWER & BUILDING , ALACOM CO LTD
发明人： ITO NOBORU , SASAKI AKIRA , IZAWA YUJI , YUZAWA KENJI
IPC分类号： B42D25/25 , B42D25/305 , G06K19/00 , G06K19/07 , G06Q10/00 , G06Q30/02 , G06Q30/06 , G06Q50/00 , G06Q50/10 , G07B1/00 , G07B15/00 , B42D15/10 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To provide a ticket managing method capable of performing customer management by using information recorded on a ticket for entering a facility and also recovering the cost of ticket production. SOLUTION: An advertiser 2 requests advertisement to a facility operator 3 and also pays an advertisement fee to the facility operator 3. The operator 3 writes information on entrance to the facility on the IC chip on an IC card, also prepares a ticket by the IC card on which the advertisement is printed and sells the ticket to a ticket buyer 1. The buyer 1 looks at the advertisement printed on the ticket, buys merchandise from the advertiser 2 and pays a merchandise price. A staff in charge of the entrance for reading an item described on the ticket to confirm the item does not have to be arranged because the facility is provided with an entrance gate device and the entrance gate device reads the information from the IC chip to control the entrance of the ticket bearer.

8. 发明专利

JP2002163346A METHOD AND SYSTEM FOR MANAGING BUILDING MAINTENANCE 失效
公开(公告)号：JP2002163346A
公开(公告)日：2002-06-07
申请号：JP2000362898
申请日：2000-11-29
申请人： NTT POWER & BUILDING
发明人： ITO NOBORU , ITO KINSAKU , ISOZAKI SHIGEO , SASAKI AKIRA , SATO JUNPEI , OSHIMA KAZUO
IPC分类号： G06K19/00 , G06K17/00 , G06Q10/00 , G06Q50/00 , G06Q50/10 , G06Q50/16 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To provide a method and a system for managing building maintenance, which can be realized at low cost and can improve the level of satisfaction of client by speedily discovering and dealing with the trouble of facilities. SOLUTION: A person in charge of cleaning performs cleaning within a charged range in a step S11 and reports the trouble of facilities discovered during cleaning in a step S12. A cleaning manager inputs that facility trouble to the system in a step S13. On the side of building maintenance managing system, in a step S14, such contents are recorded in facility trouble data and the evaluation point of the person in charge of cleaning, who discovers the relevant trouble, in point data. On the basis of an instruction statement outputted in a step S15, correspondent dealing is performed. Besides, by using the point data, the reward to the person in charge of cleaning is calculated.

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