Abstract:
PROBLEM TO BE SOLVED: To provide a liquid spreading device capable of stably and uniformly spreading the liquid without needing high processing accuracy in the liquid spreading device wherein the liquid from a tray is dropped and spread, and further to provide a heat exchanger of high heat exchanging efficiency and a refrigerating machine of high cooling capacity. SOLUTION: This liquid spreading device comprises the tray 11 for reserving the liquid 10, and drippers 12, 14 at least partially composed of a material capable of holding the liquid 10 reserved in the tray 11 and falling the liquid 10 into drops. This heat exchanger 101 comprises the liquid spreading device, and this refrigerating machine comprises the heat exchanger. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a transportation system for a liquefied hydrogen capable of fully utilizing energy held by liquefied hydrogen while minimizing the loss of the energy held by the liquefied hydrogen by improving the distant transporting and storage technologies for the liquefied hydrogen. SOLUTION: In an thermally insulated pipeline 1 for transporting the liquefied hydrogen, a cooling device 31 cooling the liquefied hydrogen is disposed in the pipeline and the cooling device evaporates a part of the liquefied hydrogen to cool the liquefied hydrogen during transportation. Also, a partition wall 14 is installed in the pipeline and outlet and inlet nozzles 17 and 18 are installed at the front and rear of the partition wall. A pump 26 for pressurizing the liquefied hydrogen connected to the outlet and inlet nozzles is installed, and the cooling device 31 cooling the liquefied hydrogen by partly evaporating the liquefied hydrogen during transportation is installed. A generating device 36 such as a fuel cell receiving hydrogen gas generated by evaporating the liquefied hydrogen from a hydrogen supply source is desirably installed. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid spraying device capable of evenly spraying liquid without requiring minute machining accuracy and capable of reducing the generation of clogging with rubbish, and to provide a liquid membrane type heat exchanger and an absorption refrigerating machine using the same. SOLUTION: This liquid spraying device for spraying liquid by dropping the liquid has a liquid holding part for folding the liquid to be dropped, a liquid flow-out part, through which the liquid from the liquid holding part flows out, and a dropping part for distributing the liquid, which flows out, to drop it. Surface treatment for improving wettability is performed to at least a part of the liquid flow-out part, which is to be brought in contact with the liquid. The liquid holding part is formed of a gutter type tray 11, and the liquid flow-out part is formed of a flow-out hole provided in the tray 11 and a guide plate 12 having an opening part 14 brought in contact with the flow-out hole 13, or the liquid holding part is formed of a dripper installed by clipping in a gutter type tray side wall, or the liquid holding part is formed of a spray tube having an injection hole in an upper part thereof, and the liquid flow-out part is formed of a cover for covering the upper part of the spray tube and having a spray groove in a side surface thereof. The surface treatment is desirably performed by thermal spraying. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide the structure of a bearing suitable for the turbine generator by which low temperature waste heat energy can be effectively utilized, and a power generating system which materializes low pressurization of a pump employed for the lubricating system of the bearing, power cut and reduction of structural strength. SOLUTION: In the turbine generator, a turbine 21 and a generator 22 are configured in a single axis 25. While providing a main bearing 35 between a turbine rotor 23 and a generator rotor 24, the main bearing 35 is arranged in the vicinity of the center of gravity of the whole rotating body. A turbine side auxiliary bearing 36 having a diameter smaller than the main bearing has is provided to a shaft end on the opposite side of the generator of the turbine. A generator side auxiliary bearing 37 having a diameter smaller than the main bearing has is provided to a shaft end on the opposite side of the turbine of the generator rotor. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To heat/sterilize the inside of distillation equipment by making good use of a heat source supplied to the distillation equipment. SOLUTION: This vacuum evaporation type distillation equipment is provided with an evaporation unit 11 having a plurality of evaporators which are connected to one another in a multiple effect manner, in the first one of which a heat source and a raw water 25 are supplied and the raw water 25 is heated by the heat source 23 and in each of which evaporation/condensation is repeated successively, a condenser 12 for cooling/condensing the steam evaporated in the final evaporator of the unit 11 and an evacuating means 15 for keeping the inside of the unit 11 below atmospheric pressure. Distilled water 26 and impurity-concentrated water 27 are obtained by repeating evaporation/condensation of the water 25 in the unit 11 decompressed by the means 15. A heating/sterilizing means is arranged for heating/sterilizing this evaporation type distillation equipment by the source 23 by reducing or nulling the amount of cooling water 24 to be supplied to the condenser 12 by a cooling water volume regulating valve 22 to reduce or null the amount of the steam to be condensed in the condenser 12. COPYRIGHT: (C)2004,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 refrigeration unit, employing a compression refrigerating machine capable of selecting the operation of an absorption refrigeration unit and a cooling tower, according to the condition of the cooling load and exhaust heat. SOLUTION: The refrigeration unit is constituted of the absorption refrigeration unit 1, employing the exhaust heat as the heat source of a regenerator G and one or more sets of compression refrigeration units 3 equipped with a cooling tower 2, a cooling water heat exchanger 4, a compressor 6, a heat-source side heat exchanger 5 and one or more sets of utilizing side heat exchangers 7. An evaporator E and the cooling water heat exchanger 4 of the absorption refrigeration unit 1 are connected to the heat-source side heat exchanger 5 of the compression refrigeration units 3, in series or in parallel through pipelines 11, 12, or the heat source side heat exchanger of the refrigeration units 3 is constituted of the evaporator E of the refrigeration unit 1 and the cooling water heat exchanger 4, while a refrigerant pipeline for guiding the refrigerant vapor at the outlet port of the compressor to the heat source-side heat exchanger or the evaporator E of the refrigeration unit 1 and the cooling water heat exchanger 4 in parallel is provided, whereby the refrigeration unit extracts hot-water from the evaporator, by conducting heating operation of the refrigeration unit and operates the compression refrigeration unit as a heat pump, while utilizing this as the low heat source of the hot-water to use as the heat pump for heating.
Abstract:
PROBLEM TO BE SOLVED: To enable an abnormal decreasing in temperature of cold water during a cooling operation or abnormal increasing in temperature of hot water during a heating operation to be prevented by a method wherein a control device for each of air conditioners is provided with a central monitoring device of an air conditioner for outputting an instruction to forcedly open a cold water or hot water valve. SOLUTION: A central monitoring device 9 for an air conditioner is connected to an air conditioner control device 7 for each of the air conditioners 4 through communication or the like. The air conditioners 4 are stopped in sequence and in the case that the air conditioner 4 being operated up to the last time is stopped, an instruction to make a forced opening of a cold water or hot water valve 6 is given to the predetermined air conditioner control device 7 from the central monitoring device 9 of the air conditioner, thereby the cold water or hot water valve 6 arranged for each of the air conditioners 4 is forcedly opened. With such an arrangement as above, the cold water or hot water can be circulated through a cold water or hot water pipe passage 3 at an air conditioning load including the air conditioners 4 and further it is possible to prevent an abnormal decreasing in temperature of cold water during cooling operation or to prevent an abnormal increasing in temperature of hot water during heating operation.
Abstract:
PROBLEM TO BE SOLVED: To accommodate for a circulating amount of cold water or hot water in a cold water or hot water feeding machine even against a poor setting of a bypassing pipe (a pipe diameter, a valve size or the like) arranged to accommodate for a circulating amount of cold water or hot water in the cold water or hot water feeding machine by a method wherein each of control devices for an air conditioner is provided with an air conditioner central monitoring device for outputting a forced opening instruction for a cold water or hot water valve. SOLUTION: A central monitoring device 8 for an air conditioner transmits a forced opening signal for a cold water or hot water valve 4 to an air conditioner control device 7 in the case that an address of an air conditioner 3 forcedly opened when a circulating amount of cold water or hot water is decreased to show an abnormal state is set in advance or in the case that a flow rate decreasing signal is received from a freezing machine 1 by turning ON/OFF a forced opening permission flag which can be set for every air conditioner 3. At the control device 7 for an air conditioner, when the cold water or hot water valve forced opening signal obtained from the central monitoring device 8 of the air conditioner is received, a controlling operation is carried out for forcedly opening the cold water or hot water valve 4 irrespective an operation/stopping of the air conditioner 3, thereby a circulating amount of cold water or hot water in the freezing machine 1 is accommodated.
Abstract:
PROBLEM TO BE SOLVED: To enable an air conditioning operation to be carried out even during a heat accumulating operation and to prevent cold water from being freezed by a heat exchanger even in the case that a leakage occurs in an adjusting valve in a path extending up to a water heat exchanger during a heat accumulating operation at night. SOLUTION: This ice heat accumulating type freezer unit is operated such that in the case that heat is accumulated in an ice heat accumulating tank 2 and brine is cooled in the ice heat accumulating tank 2, the brine is fed to a water heat exchanger 3 to take out a cooling capability. There is provided a brine passage having a brine pump 7 connected to it to cause the brine to flow from a brine outlet passage of the water heat exchanger 3 to a brine inlet passage. There are provided a cold water temperature sensor S1 in a cold water outlet side passage of the water heat exchanger 3 and a brine temperature sensor S2 in a brine inlet side passage of the water heat exchanger 3. There is also provided a control device 12 for controlling an operation of the brine pump 7 for use in flowing the brine from the brine outlet port side passage in the water heat exchanger 3 to the brine inlet side passage and a stopping of operation of the brine pump 7.