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    • 7. 发明公开
    • 칠러 및 그 운전 방법
    • 冷冻机及其控制方法
    • KR1020110059344A
    • 2011-06-02
    • KR1020090116051
    • 2009-11-27
    • 엘지전자 주식회사
    • 조은준
    • F24F11/02F24F11/00F24F5/00
    • F24F11/83F24F11/84F25B2700/2115F25B2700/21175
    • PURPOSE: A chiller and a control method for the same are provided to minimize the inflow of over-heated refrigerant into a compressor by optimizing the opening degree of an economizer expansion device. CONSTITUTION: A chiller comprises a compressor(2), a condenser(4), an economizer heat exchanger(6), an expansion device(8), an evaporator(10), a refrigerant inlet channel(12), an economizer expansion device(14), and a controller. The compressor has a variable operation capacity. The economizer heat exchanger comprises a first flow channel(28) through which a part of refrigerant compressed by the compressor passes and cools down and a second flow channel(30) through which refrigerant for cooling the refrigerant in the first flow channel passes. The refrigerant inlet channel allows the refrigerant compressed by the compressor to pass through the second flow channel and flow into the compressor. The economizer expansion device expands the compressed refrigerant before passing through the second flow channel. The controller regulates the opening degree of the economizer expansion device.
    • 目的:提供一种冷却器及其控制方法,以通过优化节能器膨胀装置的开度来最小化过热制冷剂进入压缩机的流入。 构成:冷却器包括压缩机(2),冷凝器(4),节能器热交换器(6),膨胀装置(8),蒸发器(10),制冷剂入口通道(12),节能器膨胀装置 (14)和控制器。 压缩机具有可变的运行能力。 节能器热交换器包括第一流动通道(28),由压缩机压缩的一部分制冷剂通过该第一流动通道并冷却;第二流动通道(30),用于冷却第一流动通道中的制冷剂的制冷剂通过该第二流动通道。 制冷剂入口通道允许由压缩机压缩的制冷剂通过第二流动通道并流入压缩机。 节能器膨胀装置在通过第二流动通道之前膨胀压缩的制冷剂。 控制器调节节能器膨胀装置的开度。
    • 8. 发明公开
    • 공기조화기의 제상운전방법
    • 空调驱动方法
    • KR1020100116891A
    • 2010-11-02
    • KR1020090035544
    • 2009-04-23
    • 엘지전자 주식회사
    • 조은준
    • F24F11/02F24F11/00
    • F24F11/42F24F11/30F24F11/54F24F11/62F24F2140/50F25B2600/02F25B2700/2106F25B2700/2117
    • PURPOSE: A defrosting method of an air conditioner is provided to effectively perform a defrosting operation and a heating operation according to the load of an air conditioner and the capacities of a plurality of refrigerant units. CONSTITUTION: A plurality of refrigerant units perform heating operation(S1). The difference between the temperatures of the outdoor heat exchangers of the refrigerant units and the outdoor temperature is measured(S2). It is determined whether any one of the measured temperatures reached a defrosting preparing temperature(S3). The maximum capacity of a first compressor of a first refrigerant unit having a defrosting preparing temperature is compared with the load of the air conditioner(S4). If the load of the air conditioner is larger than the maximum capacity of the first compressor, the first compressor operates at maximum capacity frost the first refrigerant unit(S).
    • 目的:提供一种空调机的除霜方法,以有效地执行根据空调的负荷和多个制冷剂单元的容量的除霜操作和加热操作。 构成:多个制冷剂单元进行制热运转(S1)。 测量制冷剂单元的室外热交换器的温度与室外温度的差(S2)。 确定测量温度是否达到除霜准备温度(S3)。 具有除霜准备温度的第一制冷剂单元的第一压缩机的最大容量与空调的负载(S4)进行比较。 如果空调的负载大于第一压缩机的最大容量,则第一压缩机以最大容量运行第一制冷剂单元(S)的运行。
    • 10. 发明公开
    • 열병합 발전 시스템
    • 热电联产
    • KR1020090076085A
    • 2009-07-13
    • KR1020080001840
    • 2008-01-07
    • 엘지전자 주식회사
    • 조은준장세동
    • F01K17/02
    • Y02E20/14Y02P80/15
    • A cogeneration system is provided to operate a plurality of cogeneration power units selectively according to the heat load of a hot water storage tank by forming a connection pipe of a common pipe and a plurality of branched pipes and forming heat transmission flow paths to be parallel. A cogeneration system comprises: a hot water storage tank(100); a connection pipe(110) connected to the hot water storage tank; a hot water storage tank pump(120) installed at the connection pipe; a plurality of cogeneration power units(50) including a water boiling heat exchanger(80) in which the connection pipe is connected; a controller(96) installed at the cogeneration power units to control the cogeneration power units; and a temperature controller(130) controlling the hot water storage tank pump according to the temperature within the hot water storage tank. In case the operation of the driving source is possible, the hot water storage tank pump is operated. The connection pipe comprises: a common pipe connected to the hot water storage tank; and a branched pipe connected to the common pipe and each water boiling heat exchanger of the cogeneration power units. The hot water storage tank pump is installed at each branched pipe.
    • 提供热电联供系统,通过形成公共管和多个分支管的连接管,并且形成平行的热传递流动路径,根据热水储存箱的热负荷选择性地操作多个热电联供电单元。 热电联产系统包括:热水储罐(100); 连接到所述热水储存罐的连接管道(110); 安装在连接管上的热水储存罐泵(120); 多个热电联供电单元(50),其包括连接所述连接管的水沸腾热交换器(80); 设置在热电联供电单元处的控制器(96),以控制热电联供电单元; 以及根据所述热水储存箱内的温度控制所述热水储存罐泵的温度控制器(130)。 在驱动源的操作成为可能的情况下,热水储存罐泵被操作。 连接管包括:连接到热水储罐的公共管; 以及连接到共同管道和热电联供电单元的每个水沸腾热交换器的分支管道。 每个支管安装热水储罐泵。