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公开(公告)号：JPH0828992A
公开(公告)日：1996-02-02
申请号：JP15720694
申请日：1994-07-08
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： MACHIDA KAZUHIKO , AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To provide a heat storage type air conditioner comprising a primary refrigeration cycle and a secondary refrigeration cycle through a heat storage tank, wherein a third changing-over valve is changed over to an over-cooling bypassing part during a cooling operation to cause liquid refrigerant to be positively sucked into a liquid refrigerant transporting pump, resulting in that an amount of circulation of the liquid refrigerant transporting pump is stabled and a shortage of life can be prevented. CONSTITUTION:This air conditioner comprises a third changing-over valve KV3 placed between a refrigerant amount adjusting tank 10 and a liquid refrigerant transporting pump PM2 so as to change-over flow passages of refrigerant, and an over-cooling bypass 14 having as its one end a third changing-over valve KV3 and as its other end placed between the third changing-over valve KV3 and the liquid refrigerant transporting pump PM2 and passing within the heat storage tank STR at the midway part thereof.
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公开(公告)号：JPH0828990A
公开(公告)日：1996-02-02
申请号：JP15720494
申请日：1994-07-08
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , MACHIDA KAZUHIKO , SUZUKI KOZO , SUGITA YOSHIHIDE
IPC: F25B13/00
Abstract: PURPOSE:To improve a controlling characteristic for a circulation amount of refrigerant in a secondary refrigeration cycle. CONSTITUTION:A heat storage type air conditioner is comprised of a first bypassing circuit in which an inlet port and an outlet port of indoor devices 12a, 12b in a primary refrigeration cycle are allowed to communicate through a first bypassing flow rate valve BV1, and a first flow rate control device CN1 for controlling a degree of opening of each of indoor flow rate valves RV in response to a degree of refrigerant over-heating degree SH of each of indoor devices 12a, 12b detected by a refrigerant state amount sensing device SN. Accordingly, a degree of opening of the first bypassing flow rate valve BV1 is set in such a manner that a total amount of refrigerant over-heating degrees at the outlets of a plurality of indoor devices 12a and 12b may be set within a predetermined range during a cooling operation.
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公开(公告)号：JPH05346246A
公开(公告)日：1993-12-27
申请号：JP15468492
申请日：1992-06-15
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
Abstract: PURPOSE:To provide an air conditioner having a heat accumulating tank which is very efficient and prominent in the load followability, in a cycle provided with an ice accumulating tank of a heat accumulation type air conditioner. CONSTITUTION:In a heat accumulation type air conditioner comprising a primary side freezing cycle 2 and a secondary side freezing cycle which are communicated through a heat accumulating tank STR, a heat exchanging block BL is formed in which primary side heat transmission tubes P1 and secondary side heat transmission tubes P2 in the heat accumulating tank are placed horizontally and one and the same fin F is arranged between these heat transmission tubes P1 and P2, crossing at right angles with respect to each of them. At this time, the fins F are positioned to form zigzag lines. By this, midnight power can be utilized for ice making (or heat accumulating) operation and for cooling (or heating) operation. As a result, power can be utilized evenly throughout a day, heat and cold can be taken out at a high speed, and load responsiveness can be improved.
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公开(公告)号：JPH05340634A
公开(公告)日：1993-12-21
申请号：JP14534892
申请日：1992-06-05
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , AOYAMA SHIGEO , SUZUKI KOZO , SUGITA YOSHIHIDE
IPC: F25B13/00
Abstract: PURPOSE:To obtain a compact heat reservoir having a high efficiency particularly in a cycle having an ice storage tank of a heat storage type air conditioner. CONSTITUTION:A heat storage type air conditioner has a primary side cycle communicating with a heat source side and a secondary side cycle communicating with a load side. A primary side heat exchanger 13a in a heat reservoir STR is formed of heat transfer tubes P1 and fins F1, F2 mounted perpendicularly to a longitudinal direction of the tubes P1. Heat insulators D1, D2 are mounted at free end sides of the fins F1, F2 thereby to conduct an operation in which a decrease in performance of the exchanger 13a due to icing progress at night, cold storage is suppressed to a minimum limit.
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公开(公告)号：JPH05340633A
公开(公告)日：1993-12-21
申请号：JP14534792
申请日：1992-06-05
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
IPC: F25B13/00
Abstract: PURPOSE:To obtain a heat storage type air conditioner having a high efficiency and high safety while using heat storage utilizing night power in a multi- chamber type air conditioner. CONSTITUTION:A primary side refrigerating cycle has a primary side heat exchanger 14a of a refrigerant-to-refrigerant heat exchanger HEX and a primary side heat exchanger 13a of a heat reservoir STR connected in parallel. A secondary side refrigerating cycle has a secondary side heat exchanger 13b of the reservoir STR and a refrigerant conveying pump PM provided in parallel with indoor side heat exchangers 17 in such a manner that a heat transfer area of the exchanger 13b is larger than that of the exchanger 13a. Thus, a large quantity of heat is efficiently and rapidly removed from the reservoir STR, no accident of water loss occurs, and safety is enhanced.
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Patent Agency Ranking
公开(公告)号：JPH05340631A
公开(公告)日：1993-12-21
申请号：JP14534592
申请日：1992-06-05
Applicant: TOKYO ELECTRIC POWER CO , MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , KURAMOTO TETSUEI , SUZUKI KOZO , SUGITA YOSHIHIDE
IPC: F25B13/00
Abstract: PURPOSE:To obtain an air conditioner having no water leakage accident due to direct conveyance of cold and hot water to a load side and a heat reservoir which has a high efficiency and high reliability in a cycle having an ice storage tank of a heat storage type air conditioner. CONSTITUTION:A heat storage type air conditioner has a primary side refrigerating cycle and a secondary side refrigerating cycle connected through a heat reservoir STR. A secondary side heat exchanger 13b is divided into three heat exchanging blocks BL1, BL2, BL3. Flow control valves FV1, FV2, FV3 are respectively installed in the blocks, a water injection control valve WV1, a drain control valve WV2 and a water level sensor LS are installed in the reservoir STR, and in the case of a relatively small thermal load such as an intermediate season, a water volume in the reservoir STR is reduced.
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公开(公告)号：JP2001141281A
公开(公告)日：2001-05-25
申请号：JP32261899
申请日：1999-11-12
Applicant: MATSUSHITA REFRIGERATION
Inventor： MARUMOTO KAZUHIKO , MAEDA MUNEKAZU , KURAMOTO TETSUEI
Abstract: PROBLEM TO BE SOLVED: To perform saving of energy by reducing an air-conditioning load through adjustment of a ventilation amount by detecting the number of staying persons and considering the number of staying persons, an outside temperature, an indoor temperature, and a set temperature, in a 24-hour open shop. SOLUTION: This air-conditioning system for a shop comprises an air conditioner 38 to perform cooling and heating of the interior of a shop 21, an inverter 23 for supply air to control the numbers of revolutions of as air supply fan 22 and an exhaust fan 25, an inverter 24 for exhaust air, a plurality of pyroelectric infrared ray sensors 26a and 26b to detect the number of staying persons at the inner whole of a shop 21, a number of staying persons computing means 53 to decide the number of persons staying in the shop 21 by the number of integration pulses therefrom, a human body ventilation amount control means 30 to regulate a necessary ventilation amount according to the number of stating persons, an indoor temperature detecting means 60; an outdoor temperature detecting means 61, a set temperature detecting means 62, a maximum ventilation amount control means 34 to provide priority to the control to maximize a ventilation amount in the shop 21 according to a comparison result therefrom, and a ventilation amount regulating means 35 to adjust a ventilation amount from a difference between a set temperature and temperature in the shop 21.
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公开(公告)号：JP2000291991A
公开(公告)日：2000-10-20
申请号：JP9630899
申请日：1999-04-02
Applicant: MATSUSHITA REFRIGERATION
Inventor： KURAMOTO TETSUEI , MAEDA MUNEKAZU , MARUMOTO KAZUHIKO
IPC: F24F11/02
Abstract: PROBLEM TO BE SOLVED: To save energy, without deteriorating an indoor comfortableness for a customer in an air conditioner for heating a shop. SOLUTION: An air conditioner comprises an outside air temperature detecting means 12 for detecting an outside temperature To, a stay time setting means 13 for setting a stopover time Ts of a customer in a shop, an indoor setting temperature calculating means 11 for calculating an indoor setting temperature Tm from the outside air temperature To detected by the outside air temperature detecting means 12 and the stopover time Ts of the customer in the shop set by the stay time setting means 13, an indoor temperature calculating means 15 for calculating an indoor temperature Ti and a refrigerating cycle control means 14 for controlling the refrigerating cycle, so that the indoor temperature Ti detected by the indoor temperature detecting means 15 becomes the indoor setting temperature Tm calculated by the indoor setting temperature calculating means 11. Thus, energy can be saved without deteriorating the comfortableness of the customer.
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公开(公告)号：JPH11201572A
公开(公告)日：1999-07-30
申请号：JP455398
申请日：1998-01-13
Applicant: MATSUSHITA REFRIGERATION
Inventor： NAKAGAWA NOBUHIRO , MARUMOTO KAZUHIKO , KURAMOTO TETSUEI
IPC: F25B13/00
Abstract: PROBLEM TO BE SOLVED: To prevent heating capacity from coming out of an indoor machine in stoppage or thermostat off condition, and the occurrence of refrigerant passage sound, in the heating operation of a multiroom air conditioner. SOLUTION: In case that indoor machines 114a and 114b are in stop or thermo off condition, expansion valves 110a and 110b on indoor side are fully closed. Then, this air conditioner can prevent heating capacity from coming out of an indoor machine in stop or thermo off condition, and also can prevent the occurrence of refrigerant passage sound, by judging whether refrigerant is collected too much or not, based on the degree of excessive cooling and the discharge temperature of the indoor machines 114a and 114b in stop or thermo off conditions, and opening the expansion valves 110a and 110b to specified aperture for as specified time in the case that the refrigerant are collected to much. Moreover, in case that the refrigerants are collected too much, this can keep the heating operation, performing the recovery of the refrigerants. Moreover, even in case that the degree of excessive cooling ripples, this can raise the accuracy in judgement of too much collection of refrigerants, and perform stable heating operation.
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公开(公告)号：JPH1038400A
公开(公告)日：1998-02-13
申请号：JP19424496
申请日：1996-07-24
Applicant: MATSUSHITA REFRIGERATION
Inventor： AOYAMA SHIGEO , NISHIO YASUNORI , KURAMOTO TETSUEI , OGAWA MITSUO , SHIMIZU TOYOKAZU , KISHINO MASAHIRO
Abstract: PROBLEM TO BE SOLVED: To improve the cooling startability by setting each valve in freezing cycles on utilization side and performing the operation of a refrigerant carrying pump, and besides, setting each valve in freezing cycles on heat source side and performing the operation of a compressor, at start of cooling operation, and fully opening a bypass valve after passage of a specified time. SOLUTION: After start of cooling operation, the setting of each valve in freezing cycles on heat source side is performed, and next the setting of each valve in freezing cycles on utilization side is performed. That is, the first controller Cnt1 opens the first flow control valve RV1 into specified aperture, and fully opens the second flow control valve RV2 and a bypass flow valve RV, and opens the second two-way valve SV2. In addition, it turns on a refrigerant pump PM, and turns on a compressor, and performs the detection of the passage time after start of operation. Then, a liquid refrigerant can be carried to indoor units 12a and 12b, and it can shift smoothly to normal cooling mode, without falling in liquid shortage or gas shortage operation, by fully closing the bypass valve RV, in case that the operation passage time comes to the specified time or over.
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