公开(公告)号：US20190048873A1

公开(公告)日：2019-02-14

申请号：US15879931

申请日：2018-01-25

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Gil Bong LEE ,  Young Soo LEE ,  Beom Joon LEE ,  Ho Sang RA ,  Young Jin BAIK ,  Jun Hyun CHO ,  Hyung Ki SHIN

IPC: F04C18/16 ,  F25B31/02 ,  F25B41/04

Abstract: A single-stage compressor including one compressing unit, includes: a housing having a compressing chamber formed therein and including a suction port, which is located in one side of the compressing chamber and into which a working fluid enters, and an injection port, which is located on the compressing chamber to be spaced apart from the suction port by a predetermined distance and into which an intermediate-pressure working fluid is injected; and an intermediate-pressure valve installed on an intermediate-pressure fluid flow path on which the intermediate-pressure working fluid moves and configured to control supply of the intermediate-pressure working fluid so that the intermediate-pressure working fluid is supplied to the injection port in response to an intermediate pressure of the compressing chamber. In the injection-type compressor having a single chamber, a working fluid is injected at an intermediate pressure (not in the proximity of a suction pressure) so that efficiency and capability of the injection-type compressor having a single chamber can be improved. The injection-type compressor having a single chamber has a simple structure and is easily manufactured so that a pressure of an injection port and a corresponding intermediate pressure can be selectively set in various ways.

公开(公告)号：US20170016651A1

公开(公告)日：2017-01-19

申请号：US15190130

申请日：2016-06-22

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Gil Bong LEE ,  Jun Hyun CHO ,  Young Soo LEE ,  Hyung Ki SHIN ,  Young Jin BAIK ,  Ho Sang RA

IPC: F25B1/047 ,  F25B49/02 ,  F25B41/00

CPC classification number: F25B1/047 ,  F25B25/005 ,  F25B31/006 ,  F25B41/00 ,  F25B49/022 ,  F25B2339/047 ,  F25B2400/01 ,  F25B2500/26

Abstract: Provided is an energy system comprising: a screw compressor; a condenser; an expansion device; an evaporator; an evaporator heat source flow path configured to provide a heating medium supplied from an outside as a heat source of the evaporator; a lubricant oil heat-exchanging unit configured to perform a heat-exchanging operation of the heating medium on an evaporator heat source flow path and lubricant oil including a refrigerant inside the screw compressor, to heat the lubricant oil by the heating medium before the screw compressor starts up, and to cool the lubricant oil by the heating medium discharged from the evaporator after the evaporator is heated by the heating medium, after the screw compressor starts up; and a controller configured to control the lubricant oil heat-exchanging unit depending on whether the screw compressor starts up.

Abstract translation: 提供一种能量系统，包括：螺杆式压缩机; 冷凝器 膨胀装置; 蒸发器; 蒸发器热源流路，被配置为提供从外部供应的加热介质作为所述蒸发器的热源; 润滑油热交换单元，被配置为在蒸发器热源流路上进行加热介质的热交换操作，以及在所述螺杆式压缩机内部包括制冷剂的润滑油，在所述螺杆式压缩机之前加热所述加热介质的润滑油 在螺杆式压缩机起动之后，在通过加热介质加热蒸发器之后，通过从蒸发器排出的加热介质来冷却润滑油; 以及控制器，被配置为根据螺杆式压缩机启动来控制润滑油热交换单元。

公开(公告)号：US20190323704A1

公开(公告)日：2019-10-24

申请号：US16472570

申请日：2017-11-01

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Beom Joon LEE ,  Gil Bong LEE ,  Young Jin BAIK ,  Hyung Ki SHIN ,  Jun Hyun CHO ,  Chul Woo ROH ,  Ho Sang RA ,  Eun Seok WANG ,  Young Soo LEE

IPC: F22B3/00 ,  F25B30/02 ,  F22B37/26 ,  F25B30/06 ,  F25B41/04 ,  F01K21/00

Abstract: In the present invention, a recuperator is used in a refrigerant cycle to make a heat exchange between a refrigerant generated in a condenser and a refrigerant before flowing into a compressor, thereby supercooling the refrigerant to minimize the quality of the refrigerant introduced into an evaporator, elevating temperatures at an inlet and an outlet of the compressor, and increasing condensed heat of the condenser. In the present invention, a recuperator is used to increase condensed heat of the condenser, leading to increasing the heat which circulation water circulating in a steam producing cycle receives from the condenser, whereby steam production efficiency can be improved.

公开(公告)号：US20150020536A1

公开(公告)日：2015-01-22

申请号：US14324308

申请日：2014-07-07

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Gil Bong LEE ,  Young Soo LEE ,  Min Sung KIM ,  Ki Chang CHANG ,  Jun Hyun CHO ,  Ho Sang RA

IPC: F25B13/00

CPC classification number: F25B13/00 ,  F25B41/003 ,  F25B45/00 ,  F25B49/02 ,  F25B2400/16 ,  F25B2600/2523 ,  F25B2700/1931 ,  F25B2700/1933

Abstract: A heat pump system includes a liquid receiver valve that adjusts the amount of a refrigerant stored in a liquid receiver so that a circulation amount of the refrigerant that circulates the heat pump system can be adjusted according to a driving speed of a compressor and performance of the compressor and the heat pump system can be further improved. Also, since a plurality of liquid receiver refrigerant outlets can be selectively opened using a pressure difference between an inlet and an outlet of the compressor, active control can be performed.

Abstract translation: 热泵系统包括：液体接收阀，其调节储存在储液器中的制冷剂的量，使得可以根据压缩机的驱动速度来调节循环热泵系统的制冷剂的循环量，并且执行 压缩机和热泵系统可以进一步提高。 此外，由于可以使用压缩机的入口和出口之间的压力差来选择性地打开多个储液器制冷剂出口，因此可以进行主动控制。