Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating equipment that can be used for an air conditioner, economically and efficiently operated by selecting the optimal operation mode of a compression freezer. SOLUTION: This freezing equipment is constituted by combining an absorption freezer having an evaporator E and a compression freezer having two or more compressors M1, M2, a first condenser C1 cooling by outside air or cooling water, a second condenser C2 connected having heat exchange relation with the evaporator E of the absorption freezer, a use side evaporator Ec providing a cooling effect, and a pipe circulating and connecting them. The compressors M1, M2 are connected in parallel with each other. The compressor M1 is connected by a pipe with the first condenser C1 at the discharge side, and the outlet side of the first condenser C1 is connected by a pipe with an inlet of the second condenser C2. The compressor M2 is connected at the discharge side with a pipe between the first and second condensers and is provided with a by-pass pipe 6 by-passing the compressor M2 in parallel with the compressor M2. The control valve V1 is provided to the by-pass pipe 6. A pipe on the discharge side of the compressor M2 and that of the compressor M1 can be connected by a pipe having a selector valve equivalent with a three-way valve. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide refrigerating equipment combined with an absorption type and a compression type and efficiently driving by adjusting the driving state of a compression refrigerating machine according to the state of cooling loads and absorption refrigerating effects. SOLUTION: This refrigerating equipment is formed by combining the absorption refrigerating machine having an evaporator E, with a compression refrigerating machine having one or more compressors Mc, a condenser Cc connected to the evaporator E of the absorption refrigerating machine in a heat exchange relation or a second condenser Ccx cooling using outside air or cooling water along with the condenser Cc, and an evaporator Ec exhibiting a refrigerating effect. The compression refrigerating machine is provided with a control valve feeding refrigerant liquid to the evaporator Ec, a sensor detecting a superheat degree of refrigerating steam of the outlet of the evaporator Ec, a means setting the target value of the superheat degree, and a control means controlling the capacity of the evaporator Ec by changing the target value of the superheat degree of the refrigerant steam of the outlet of the evaporator Ec. The plurality of compression refrigerating machines can be connected to the single absorption refrigerating machine. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating device capable of adjusting the operating condition of a compression refrigerator in accordance with the condition of a cooling load and absorption refrigerating effect, and being economically and efficiently operated. SOLUTION: In this refrigerating device manufactured by combining an absorption refrigerating machine having an evaporator E exercising the refrigerating effect by using exhaust heat as a heat source, a compressor Mc, a first condenser Cc1 cooling with the outside air or the cooling water, and a compression refrigerating machine having a first condenser Cc2 connected to the evaporator E of the absorption refrigerating machine with heat exchange relationship and an evaporator Ec exercising the refrigerating effect, and the compressor Mc is provided with a control means operated when the load to the evaporator Ec can not be coped only by the refrigerating effect of the absorption refrigerating machine. A plurality of compression refrigerating machines can be connected to one absorption refrigerating machine, and the control means operates the compressor Mc on the basis of the difference between a target temperature of a cooled medium and an actual temperature, the evaporation pressure of a refrigerant in the evaporator Ec, and the like. COPYRIGHT: (C)2003,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating equipment that can be used for an air conditioner, economically and efficiently operated by selecting the optimal operation mode of a compression freezer. SOLUTION: This freezing equipment is constituted by combining an absorption freezer RA having an evaporator E and the compression freezer RP constituted of a compressor M, a first condenser C1 and a second condenser C2, cooling by outside air or cooling water, and a use side evaporator Ec providing a freezing effect. The evaporator E of the absorption freezer RA has heat exchange relation with the second condenser C2 of the compression freezer RP, or it uses the second condenser C2 at the same time. A circuit 1 by-passing the first condenser C1 is provided to the compression freezer, and a control valve 10 is provided to the circuit 1. A circuit by-passing the compressor M is provided to the compression freezer RP. The by-pass circuit can be provided with a check valve V1 or a control valve, and the compressor M can be provided with a high-head compressor and a low-head compressor. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerator usable also as an air conditioner capable of being economically and efficiently operated by controlling operating states. SOLUTION: This refrigerator comprises an absorption type refrigerator 1 having a regenerator G, a condenser C, an absorber A, and an evaporator E and a plurality of compression type refrigerating machines 2 to 5 having one or more of user side heat exchangers Ec, depressurizing mechanisms V, compressors M, first heat source side heat exchangers C1 for exchanging heat between a first heat source fluid and refrigerant, and second heat source side heat exchangers C2 connected in series and/or parallel with the first heat source side heat exchangers C1. The evaporator E of the absorbing refrigerating machine 1 exchanges heat with the second heat source side heat exchangers C2 of the compression refrigerating machines 2 to 5, and the heat exchangers C2 of the refrigerating machines 2 to 5 and the evaporator E of the refrigerating machine 1 are connected to each other in series and/or parallel with the flow of heat transfer medium. The refrigerating machine 1 comprises a means for detecting the temperature of the heat exchanger E or an equivalent physical amount, and may comprises a means for controlling the temperature or the corresponding physical value within a specified range. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide refrigerating equipment combined with an absorption type and a compression type and efficiently driving by adjusting the driving state of a compression refrigerating machine according to the state of cooling loads and absorption refrigerating effects. SOLUTION: This refrigerating equipment is formed by combining the absorption refrigerating machine having an evaporator E exhibiting the refrigerating effect using waste heat as a heat source, with a compression refrigerating machine having one or more compressors Mc, an evaporator Ec exhibiting the refrigerating effect, a first condenser cooling using outside air or cooling water, a second condenser connected to the evaporator E of the absorption refrigerating machine in a heat exchange relation, and, or a supercooling device; and is provided a means adjusting a load to the evaporator E and a temperature sensor detecting the temperature of the evaporator E. The plurality of compression refrigerating machines can be connected to the single absorption refrigerating machine and preferably, each compression refrigerating machine is provided with a means collectively, dividedly, or individually adjusting the load from the second condenser side and/or the supercooling device side to the evaporator E. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide economical and efficient refrigerating equipment adjusting the driving state of a compression refrigerating machine according to the state of cooling loads and absorption refrigerating effects. SOLUTION: This refrigerating equipment is formed by combining the absorption refrigerating machine having an evaporator E, with a compression refrigerating machine having one or more compressors Mc, a first condenser Cc1 cooling using outside air or cooling water, a second condenser Cc2 connected to the evaporator E of the absorption refrigerating machine in a heat exchange relation, and evaporators Ec exhibiting refrigerating effects. The compression refrigerating machine is provided with a pressure sensor in the absorption side from the evaporators Ec to the compressors Mc or a sensor detecting a physical quantity corresponding to the pressure. This refrigerating equipment combined with the absorption type and the compression type is provided with a means adjusting the capacity or the number of the compressors Mc under driving so as to make the value detected by the sensor to a target value. A frequency variably driving inverter is provided, at least, one of the compressors Mc and the inverter may be adjusted based on the detection value of the sensor. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating device combining an absorption-system and a compression-system capable of providing the refrigerating performance of a compression refrigerator even only by the absorption system, and exerting the absorption refrigerating effect even when a compressor is operated. SOLUTION: In this refrigerating device wherein an absorption refrigerator with an evaporator E, and a compression refrigerator with a compressor Mc, a first condenser Cc1 cooled by the outside air or the cold water, a second condenser Cc2 connected to the evaporator E of the absorption refrigerator on the basis of heat exchanging relationship, and an evaporator Ec exerting the refrigerating effect, are combined, the Cc1 is connected to a discharge side of Mc, the Cc2 is connected to a suction side of the Mc, the refrigerating device can connect an over-cooling device Sc behind the Cc1 along the flow of the refrigerant of the compression refrigerator, further the Cc1 is connected behind the Mc in series, and the Mc and the Cc2 can be connected in parallel to the evaporator Ec of the compression refrigerator. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating equipment used for an air conditioner, performing economical and efficient operations when a plurality of compression type refrigerators are connected with one absorption type refrigerator. SOLUTION: This equipment is constituted of the absorption type refrigerator 1 comprising an evaporator E and a plurality of compression type refrigerators 2-5 respectively having one or more use side heat exchanger Ec, a decompression mechanism V, a compressor M, a first heat source side heat exchanger C1, a second heat source side heat exchanger C2 connected with the first heat exchanger C1 in series and the absorption type refrigerator or in parallel with each other. The evaporator E of the absorption type refrigerator 1 is connected in a heat exchanging relation with the second heat exchanger C2 of the compression type refrigerators 2-5. The equipment has means for detecting temperature of the evaporator E of the absorption type refrigerator 1, the evaporator E outlet temperature of a heat transfer medium or a heat transfer medium temperature of the second heat exchanger C2, or the relevant physical quantity.The equipment comprises a device for controlling flow of the heat transfer medium supplied to the second heat exchanger C2 so as to restrain the detected values within predetermined regions. The refrigerator 2 detects the physical quantity such as a use side heat load. And the heat transfer quantity between the first heat source side heat exchanger C1 and the second heat source side heat exchanger C2 is preferably controlled by the detection result. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerator used for an efficient air conditioner switchable to an optimum operation mode according to the supplied amount of waste heat and a cooling load. SOLUTION: This refrigerator is the combination of an absorbing refrigerating machine having an evaporator E and a compression refrigerating machine having a compressor M, a first condenser C1 and a second condenser C2 cooled by the outside air or cooling water, and a user side evaporator Ec developing a refrigerating effect. The evaporator E of the absorbing refrigerator comprises a control device exchanging heat with the second condenser C2 of the compression refrigerator, or used commonly with the second condenser C2 and controlling the flow of cooling medium for cooling the first condenser C1. A circuit bypassing the compressor M is provided in the compression refrigerating machine, a check valve V1 or a control valve may be installed in the bypass circuit, and the compressor M may have a high head compressor and a low head compressor. COPYRIGHT: (C)2004,JPO