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公开(公告)号：KR1020120092974A
公开(公告)日：2012-08-22
申请号：KR1020110012940
申请日：2011-02-14
Applicant: 서울대학교산학협력단
Abstract: PURPOSE: A heat pump system and a control method thereof are provided to reduce energy consumption of a compressor and improve driving performance while minimizing the speed reduction loss, the restarting loss, and the acceleration loss of the compressor. CONSTITUTION: A heat pump system comprises an auxiliary refrigerant supplying unit(150). The auxiliary refrigerant supplying unit comprises a bypass pipe(160), a first control valve(170), a second control valve(180), and a high pressure insulation cylinder(190). When the partial load operation of a compressor is performed, some quantity of the refrigerant discharged from the compressor is filled in the high pressure insulation cylinder and in case the restarting the compressor is performed, and when the compressor restarted, the refrigerant filled in the high pressure insulation cylinder is supplied to the compressor.
Abstract translation: 目的：提供一种热泵系统及其控制方法，以减少压缩机的能量消耗并提高驱动性能，同时最小化压缩机的减速损失，重启损失和加速损失。 构成：热泵系统包括辅助制冷剂供应单元（150）。 辅助制冷剂供给单元包括旁通管（160），第一控制阀（170），第二控制阀（180）和高压绝缘筒（190）。 当进行压缩机的部分负荷运转时，从压缩机排出的一定数量的制冷剂被填充在高压绝缘筒中，并且在重新启动压缩机的情况下，当压缩机重新启动时，填充在高压 将压力绝缘筒供给压缩机。
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公开(公告)号：KR1020120118708A
公开(公告)日：2012-10-29
申请号：KR1020110036243
申请日：2011-04-19
Applicant: 서울대학교산학협력단
Abstract: PURPOSE: A heat pump system with an injector and a control method thereof are provided to accurately control the amount of fluid on the basis of a discrete flow. CONSTITUTION: A heat pump system with an injector and a control method thereof comprise a first heat exchanger(100), an injector(210), a second heat exchanger(300), a converter(400), and a compressor(500). The first heat exchanger heat exchanges working fluid with the air. The injector is connected to the first heat exchanger, and decompresses the working fluid. The second heat exchanger is connected to an expansion unit, and heat exchanges the working fluid with the air. The converter is connected to the first and second heat exchangers, respectively. The converter determines the flow direction of the working fluid. The compressor is connected to the converter, and increases the pressure of the working fluid.
Abstract translation: 目的：提供一种具有喷射器及其控制方法的热泵系统，以便基于离散流量精确地控制流体的量。 构成：具有喷射器及其控制方法的热泵系统包括第一热交换器（100），喷射器（210），第二热交换器（300），转换器（400）和压缩机（500）。 第一个热交换器与空气热交换工作流体。 喷射器连接到第一热交换器，并且减压工作流体。 第二热交换器连接到膨胀单元，并且与空气热交换工作流体。 转换器分别连接到第一和第二热交换器。 转换器确定工作流体的流动方向。 压缩机连接到转换器，并增加工作流体的压力。
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公开(公告)号：KR101262933B1
公开(公告)日：2013-05-09
申请号：KR1020110036243
申请日：2011-04-19
Applicant: 서울대학교산학협력단
CPC classification number: Y02B30/66
Abstract: 본발명의목적은무엇보다도팽창밸브의개도를조절하여냉매유량과팽창전후의압력차이를제어는방식으로히트펌프시스템을설계하는경우에닥치는팽창전후압력과냉매유량사이의커플링된관계에기인하는한계를극복할수 있는새로운히트펌프시스템과그 제어방법을제공하는것이다. 이를위하여본 발명에서는, 제1열교환기; 제2열교환기; 상기제1열교환기및 상기제2열교환기와각각연결되어작동유체의흐름방향을결정하는변환기; 및상기변환기와연결되고, 내부를흐르는작동유체를승압시키는압축기를포함하고, 상기인젝터는, 제1관로; 상기제1관로와연통되는것으로상기제1관로보다좁게형성된제2관로; 상기제1관로내에서이동가능하게설치된것으로상기제1관로와상기제2관로가연결된부분에서상기제2관로를폐쇄하거나개방하는기능을하는스탬; 및상기스탬의이동을제어하는구동유닛를포함하고, 상기구동유닛은상기스탬이상기제1관로내에서상기제2관로를폐쇄하는위치와개방하는위치사이에서 on/off 방식으로이동하도록하고, 1회의 on/off 동작중에제1관로를통해제2관로로흐르는작동유체의흐름이폐쇄생태로유지되는시간간격과개방상태로유지되는시간간격을조절하여인젝터를통과하는작동유체의유량을제어하는히트펌프시스템을제공한다.
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