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JP5367059B2 |
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JP5367100B2 |
To obtain a dual refrigeration system, having two refrigerant circuits coupled, which can suppress a rise in pressure accompanying a temperature rise of a liquid receiver and also improve reliability.A dual refrigeration system includes ...
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JP5352399B2 |
To provide an inexpensive compression type refrigerating machine having high efficiency in comparison with an existing double refrigerating cycle compression type refrigerating machine. In this compression type refrigerating machine of t...
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JP5345101B2 |
To provide a hot water heat source machine of high efficiency by ensuring necessary heating capacity without increasing a capacity of a low order-side refrigerating cycle.When an operational frequency of a low order-side compressor 11 be...
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JP5330915B2 |
To demonstrate cooling performance of a dual refrigerating cycle device by eliminating a hunting phenomenon of movements during operation and keeping the stable operation. A low-temperature side coolant circuit 14 feeds high-temperature ...
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JP5323023B2 |
To provide a refrigerating device which properly maintains the volume of a refrigerant even in a refrigerating system having large load variations. A refrigerating device includes a lower refrigeration cycle 10, a higher refrigeration cy...
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JP5314770B2 |
Disclosed is a heat source unit power consumption prorating system (10) having a heat quantity usage calculation unit (19a), a corrected heat quantity calculation unit (19b), and an electric power prorating unit (19c). The heat quantity ...
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JP5315102B2 |
To provide a refrigerating machine, and a refrigerating and air-conditioning system including the same, capable of being properly operated even when a plurality of evaporators are connected to one compressor and one condenser. In this re...
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JP5316973B2 |
To provide a cooling and defrosting system by a carbon dioxide refrigerant and a method of operating the same, capable of continuously defrosting a load-side cooler until defrosting is completed, while simplifying the system and reducing...
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JP5312075B2 |
To save energy by moving the waste heat of an ammonia refrigerant circuit to a carbon dioxide refrigerant circuit side and recovering the waste heat of the ammonia refrigerant circuit which has conventionally been disposed in the atmosph...
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JP5313093B2 |
A refrigerating apparatus for keeping an inside of a storage at a predetermined low-temperature state includes first and second refrigerant circuits including compressors, condensers, decompressors, and evaporators, connected circularly ...
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JP5305099B2 |
To effectively utilize heat of a condenser in a water cooling device using a refrigerating machine. A steam compressor 4 sucks/exhausts gas in a water storage tank 8 to decompress inside the water storage tank 8 and compresses water vapo...
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JP2013194926A |
To provide a steam generating system that can generate the amount of steam demanded while keeping the heat received from a first heating medium at a low level.A steam generating system generates steam using first hot water as a heat sour...
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JP2013190154A |
To provide a refrigeration apparatus capable of stably obtaining a high COP by suppressing an influence of an ambient temperature irrespective of a refrigeration cycle using carbon dioxide as coolant.The refrigeration apparatus 10 includ...
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JP5300806B2 |
To provide a heat pump device utilizing a binary refrigeration cycle which ensures a high COP even when a target tapping temperature is high. The heat pump device includes a high-side cooling medium circuit 100 wherein a high-side compre...
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JP2013181513A |
To provide a compressor and the like that can prevent a disaster and the like caused by refrigerant combustion.A compressor used for a high temperature side compressor or the like of a binary refrigerating cycle device includes: a compre...
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JP5279104B1 |
To provide a control method of a dual refrigerating apparatus capable of a smooth start-up while ensuring the stability of the entire system in steady operation. A compressor, a condenser 22, an expansion mechanism, and an evaporating pa...
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JP5279105B1 |
To perform a start-up control method of a dual refrigerating apparatus capable of smooth start-up until steady operation without fear of causing both a high-pressure abnormality of a low-source refrigerant circuit and a low-pressure abno...
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JP5270523B2 |
To improve the efficiency of a freezer-refrigerator by loading a binary refrigerating cycle in the freezer-refrigerator. The refrigerating cycle 1 of this freezer-refrigerator includes a high-temperature cycle 2 having a high-temperature...
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JPWO2011158305A1 |
We provide a refrigerating and air-conditioning system that can handle air-conditioning loads such as cooling load and heating load and refrigerating / refrigerating load at the same time, and can supply a stable heat source throughout t...
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JP5264936B2 |
To provide an air-conditioning hot-water supply complex system that can simultaneously cover a cooling load, a heating load and a high-temperature hot-water supply load, thus can provide a stable heat source throughout the year, and allo...
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JP2013148330A |
To further enhance operational efficiency of a heat pump provided with a cascade heat exchanger and improve energy-saving performance of the heat pump.In a heat pump including a heating-side circuit (10) and a cooling-side circuit (20) c...
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JP5237457B2 |
An ice rink cooling facility 100 in which a cooling-pipe bank 1 having a plurality of cooling pipes 11 is arranged at the bottom part of the ice rink 10 and CO2 brine streams through the cooling pipe bank 1 so as to cool the ice rink 10,...
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JP5222494B2 |
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JP2013113534A |
To provide a heat pump system having a control configuration of each compressor to execute an operation of higher COP in comparison with a conventional one, though it is simple.This heat pump system 100 includes a first temperature senso...
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JP2013113535A |
To provide a binary refrigerating device capable of operating while maintaining a pressure ratio of a low order-side refrigerating cycle and a pressure ratio of a high order-side refrigerating cycle in an appropriate range with a simple ...
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JP2013108690A |
To provide an air conditioning and hot water supply combined system capable of recovering exhaust heat of an air conditioning cycle and utilizing it for hot water supply regardless of an operation state of a hot water supply cycle.The ai...
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JP5202726B2 |
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JP5200996B2 |
A heat pump system (1) includes a heat source unit (2), a discharge refrigerant communication tube (12), a liquid refrigerant communication tube (13), a gas refrigerant communication tube (14), a first usage unit (4a), and a second usage...
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JP2013104624A |
To provide a refrigeration cycle apparatus having superior performance of energy saving and also having high reliability of a compressor, by preventing oil outflow in a high temperature side compressor in a binary refrigeration cycle.At ...
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JP2013104606A |
To provide a binary refrigeration cycle apparatus capable of shortening a defrosting period, and having high efficiency of operation.A refrigeration cycle apparatus includes a low temperature-side refrigeration cycle 110, a high temperat...
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JP2013092291A |
To provide a refrigerator and freezer device having a dual refrigeration cycle capable of reducing power consumption.In the refrigerator and freezer device 1 having the dual refrigeration cycle 30 having a first refrigeration cycle 10 op...
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JP5197576B2 |
A heat pump system has a single heat source unit connected to at least one load unit to heat water to a high temperature. A hot water supply system 100 (heat pump system) includes a heat source unit 10 provided with a first compressor 11...
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JP2013068409A |
To provide a heat pump that simultaneously satisfies demands on the cooling and heating sides, and reduces power consumption of a compressor.The heat pump includes: a first evaporator 3 containing a first heating medium to exchange heat ...
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JP5185541B2 |
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JP2013510286A |
The present invention relates to a cascade refrigeration system which circulates a refrigerant comprising a fluoroolefin therethrough. The cascade refrigeration system includes a low temperature refrigeration loop and a medium temperatur...
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JP2013506815A |
A refrigeration system is provided for use with an ultra-low temperature freezer having a deck and a refrigerated cabinet supported above the deck. The system has a first refrigeration stage and a second refrigeration stage. The first st...
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JP2013036707A |
To provide a refrigerating cycle apparatus capable of safely executing the work or the like by a more simple constitution or the like in a refrigerating apparatus employing the carbon double bond.The refrigerating cycle apparatus constit...
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JP5148256B2 |
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JP5136968B2 |
There is provided an efficient steam generation system capable of reducing a temperature difference in heat to be drawn by a heat pump. A first heat pump (2) includes a first evaporator (7) and a second evaporator (8). A second heat pump...
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JP5125851B2 |
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JP2013011423A |
To increase a supercooling efficiency of a subcooler during a time period of peak power generation to increase an operational efficiency of a first refrigeration cycle circuit.A refrigerating apparatus R supercools a refrigerant of the f...
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JP5119513B2 |
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JP5121922B2 |
To provide an air-conditioning hot-water supply complex system that can simultaneously process a cooling load, a heating load, and a high-temperature hot-water supply load to provide a stable heat source all through the year. The air-con...
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JP2013002737A |
To prevent the blocking of a safety valve, and to secure the reliability of a refrigerating cycle device.The refrigerating cycle device includes a low-temperature side closed circuit 6 using a carbon dioxide as a refrigerant and having a...
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JP5094942B2 |
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JP5084933B2 |
To enhance further energy saving and safety by recovering waste heat of an ammonia refrigerant circuit and using the same for defrosting.In a carbon dioxide circulation and cooling system having a carbon dioxide refrigerant circuit 13, t...
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JP5084934B2 |
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JP5084903B2 |
There is provided an air conditioning and hot water supply complex system that can simultaneously treat a cooling load, a heating load and a high-temperature hot water supply load and supply a stable heat source throughout the year. In t...
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JP2012215354A |
To enable the supply of hot water of different temperature ranges to a first use side and a second use side respectively, using only a dual refrigeration cycle apparatus as a stand-alone system.The dual refrigeration cycle apparatus incl...
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