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21. 发明专利

JP2004108617A Supercritical steam compression cycle 有权
公开(公告)号：JP2004108617A
公开(公告)日：2004-04-08
申请号：JP2002268702
申请日：2002-09-13
申请人： Mayekawa Mfg Co Ltd , 株式会社前川製作所
发明人： YOSHIKAWA TOMOIKU , FUJIMA KATSUMI
IPC分类号： F25B1/00 , F25B9/00
CPC分类号： F25B9/008 , F25B2309/061 , F25B2400/13 , F25B2400/16 , F25B2600/05
摘要： PROBLEM TO BE SOLVED: To provide a supercritical steam compression cycle allowing refrigeration capacity adjustment by changing a refrigerant filling amount by adsorption of CO
2 refrigerant on a high pressure side to an adsorbent refrigerant of CO
2 or the like, without adjusting the refrigeration capacity of a high-pressure refrigerant by circulation of a low-pressure refrigerant executed through an internal heat exchanger in addition to provision of a reservoir for the high-pressure refrigerant not condensed on the high side.
SOLUTION: This supercritical steam compression cycle comprises: a compressor 10 pressurizing the adsorbent refrigerant of CO
2 or the like to a supercritical state; a gas cooler 11 cooling the compressed high-pressure refrigerant; an expansion valve 12 for decompressing the cooled super critical high-pressure refrigerant to obtain the low-pressure refrigerant; an evaporator 13 evaporating the low-pressure refrigerant and sending out cold heat to the outside; and a refrigerant adsorption part 14 provided between the compressor 10 and the gas cooler 11.
COPYRIGHT: (C)2004,JPO

22. 发明专利

JP2004108615A Steam compression type refrigeration cycle with ejector 审中-公开
公开(公告)号：JP2004108615A
公开(公告)日：2004-04-08
申请号：JP2002268699
申请日：2002-09-13
申请人： Mayekawa Mfg Co Ltd , 株式会社前川製作所
发明人： YOSHIKAWA TOMOIKU , FUJIMA KATSUMI
IPC分类号： F25B1/00 , F25B40/00
CPC分类号： F25B2341/0012
摘要： PROBLEM TO BE SOLVED: To provide a steam compression type refrigeration cycle with an ejector capable of increasing refrigerating effect of the refrigeration cycle by supercooling a high-pressure condensate by use of an intermediate port of a compressor and a built-in ejector cycle.
SOLUTION: This steam compression type refrigeration cycle with the ejector comprises the compressor 21 with the intermediate port, a condenser 22, an expansion valve 24a, and an evaporator 24. A supercooler 23 for cooling the high-pressure condensate led out of the condenser 22 is attached between the condenser 22 and the expansion valve 24a, and a cooling means of the supercooler 23 incorporates the ejector cycle 30. The ejector cycle 30 comprises the ejector 25, a gas-liquid separator 26, a throttle valve 26a, and a countercurrent type heat exchange path 23a.
COPYRIGHT: (C)2004,JPO

23. 发明专利

JP2003322421A High pressure side pressure control method in supercritical vapor compression circuit and circuit device 有权
标题翻译：超压蒸汽压缩电路和电路装置中的高压侧压力控制方法
公开(公告)号：JP2003322421A
公开(公告)日：2003-11-14
申请号：JP2002130513
申请日：2002-05-02
申请人： Chubu Electric Power Co Inc , Mayekawa Mfg Co Ltd , 中部電力株式会社 , 株式会社前川製作所
发明人： WATANABE SUMIO , MURASE YUJI , FUJIMA KATSUMI , YOSHIKAWA TOMOIKU , YONEDA HIROKAZU
IPC分类号： F25B1/00 , F25B1/047 , F25B9/00 , F25B43/02
CPC分类号： F25B9/008 , F25B31/002 , F25B2309/061 , F25B2600/02 , F25B2600/17
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive circuit device and a control method for controlling high pressure side pressure in a supercritical vapor compression circuit using an oil feeding type screw compressor. SOLUTION: This supercritical vapor compression circuit device is composed of the oil feeding type screw compressor, an oil separator, a gas cooler, an expansion valve, a closed circuit including an evaporator, and a circuit for resupplying oil supplied to the compressor, included in delivery gas, and separated by the oil separator to the compressor, and is provided with at least one of an adjusting means for adjusting at least one of a flow rate or a temperature of the supply oil or an adjusting means for adjusting an oil quantity in the oil separator by supplying the oil from an external part in the oil separator or taking out the oil to the external part in the circuit for supplying the oil to the compressor, and is provided with a control means for controlling these adjusting means so that COP becomes optimal. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种廉价的电路装置和用于使用供油型螺杆式压缩机控制超临界蒸汽压缩回路中的高压侧压力的控制方法。解决方案：该超临界蒸汽压缩回路装置由供油型螺杆式压缩机，油分离器，气体冷却器，膨胀阀，包括蒸发器的闭合回路，以及供给压缩机的供给油供给回路包括在输送气体中并由油分离器分离到压缩机中，并且设置有用于调节供给油的流量或温度中的至少一个的调节装置或调节装置的调节装置中的至少一个通过从油分离器中的外部部分供给油或者将油抽出到用于向压缩机供给油的回路中的外部的油分离器中的油量，并且设置有控制装置，用于控制这些调节装置使COP成为最佳。版权所有（C）2004，JPO

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