公开(公告)号：US20220154982A1

公开(公告)日：2022-05-19

申请号：US17528626

申请日：2021-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Jungho KANG ,  Jinhee JEONG ,  Hyunwook HAN ,  Uisik HWANG ,  Heewoong LEE ,  Chulmin KIM

IPC: F25B39/04 ,  F25B1/00

Abstract: A condenser and a turbochiller including a condenser are provided. The turbochiller may include a compressor including an impeller that compresses refrigerant and a motor that drives the impeller; a condenser for heat exchange between the refrigerant introduced from the compressor and cooling water; an evaporator for heat exchange between the refrigerant discharged from the condenser and cold water; an expansion valve provided between the condenser and the evaporator; and a collector configured to collect noncondensable gas inside of the condenser. Accordingly, it is possible to efficiently collect noncondensable gas inside of a condenser of a turbochiller.

公开(公告)号：US20170227265A1

公开(公告)日：2017-08-10

申请号：US15256858

申请日：2016-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Cheolmin KIM ,  Jinhee JEONG ,  Jungho KANG ,  Hyunwook HAN

IPC: F25B39/00 ,  F25B41/04

CPC classification number: F25B39/00 ,  F25B39/04 ,  F25B41/04 ,  F25B2339/047 ,  F25B2600/2503

Abstract: A chiller system includes a compressor that compress refrigerant, a condenser that exchanges heat between the refrigerant and a cooling water discharged from the compressor, and a flow adjusting device that is provided to a refrigerant outlet side of the condenser and adjusts refrigerant amount in the inside of the condenser, the flow adjusting device includes, a main body portion that is communicated with a tubing of the outlet side of the condenser, a refrigerant supply tube that extends to the main body portion from the condenser and supplies the refrigerant in the inside of the condenser to the inside of the main body portion, and a flow hole that is formed on the main body portion and is selectively opened and closed according to refrigerant pressure which is input through the refrigerant supply tube.

公开(公告)号：US20150168035A1

公开(公告)日：2015-06-18

申请号：US14531802

申请日：2014-11-03

Applicant: LG ELECTRONICS INC.

Inventor： Jungho KANG ,  Cheolmin Kim ,  Simbok Ha ,  Jinhee Jeong

IPC: F25B39/02

CPC classification number: F25B39/028 ,  F25B2400/23 ,  F28D2021/0071

Abstract: A distributor and an evaporator having the same are provided. The distributor may include a first refrigerant distributor provided with a plurality of through holes formed in a first direction, and a plurality of refrigerant dropping devices that guide refrigerant, dropped from the first refrigerant distributor through the plurality of through holes, to a heat transfer pipe, and having a sectional area of flow surfaces thereof that decreases in a flow direction of the refrigerant.

Abstract translation: 提供具有该分配器和蒸发器的分配器和蒸发器。 分配器可以包括设置有沿第一方向形成的多个通孔的第一制冷剂分配器和将从第一制冷剂分配器落入多个通孔的制冷剂引导到传热管的多个制冷剂滴下装置 并且其流动面的截面积在制冷剂的流动方向上减小。

公开(公告)号：US20210348615A1

公开(公告)日：2021-11-11

申请号：US16921081

申请日：2020-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Cheolmin KIM ,  Jinhee JEONG ,  Hyunwook HAN ,  Uisik HWANG ,  Jungho KANG ,  Heewoong LEE

IPC: F04D17/12 ,  F04D25/02 ,  F25B31/02

Abstract: A turbo compressor includes a housing with a refrigerant suction hole, through which a refrigerant is introduced, at a front portion thereof, and a motor case defining an accommodation space. The accommodation space includes a rotation shaft extending in a front-rear direction and a motor that is configured to rotate the rotation shaft. A first impeller is coupled to one end of the rotation shaft and a second impeller is coupled to the other end of the rotation shaft. The first impeller is configured to primarily compress the refrigerant introduced into the refrigerant suction hole. A connection passage, that surrounds the motor case extends backward from an outlet of the first impeller. The second impeller is configured to secondarily compress the refrigerant introduced through the connection passage.

公开(公告)号：US20210254873A1

公开(公告)日：2021-08-19

申请号：US17172256

申请日：2021-02-10

Applicant: LG ELECTRONICS INC.

Inventor： Jungho KANG ,  Jinhee Jeong ,  Hyunwook Han ,  Uisik Hwang ,  Heewoong Lee ,  Cheolmin Kim

IPC: F25B39/02 ,  F28D3/04 ,  F28D3/02

Abstract: An evaporator comprises: a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes that are contained in the housing, in which chilled water for heat exchange with refrigerant inside the housing flows; at least one distribution tray that is placed apart from the heat transfer tubes and has a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; a vapor-liquid separator that is placed apart from the bottom of the distribution tray and separates an introduced refrigerant into a vapor refrigerant and a liquid refrigerant; and a pair of support frames that are fixed to either side of the width direction of the housing, wherein the vapor-liquid separator comprises: a chamber that has an inlet port communicating with the refrigerant inlet, a vapor refrigerant exit communicating with the refrigerant outlet, and a plurality of holes formed in the bottom to distribute the liquid refrigerant to the distribution tray; and a plurality of side arms that are formed on either side of the chamber and arranged in the length direction of the chamber and supported by the support frames. Through the present disclosure, it is possible to keep the vapor-liquid separator horizontal and stable and achieve stable heat exchange performance.

公开(公告)号：US20210254871A1

公开(公告)日：2021-08-19

申请号：US17171260

申请日：2021-02-09

Applicant: LG ELECTRONICS INC.

Inventor： Jungho KANG ,  Jinhee Jeong ,  Hyunwook Han ,  Uisik Hwang ,  Heewoong Lee ,  Cheolmin Kim

IPC: F25B39/00

Abstract: An evaporator comprises: a housing with a refrigerant inlet and a refrigerant outlet; heat transfer tubes that are contained in the housing, in which chilled water for heat exchange with refrigerant inside the housing flows; at least one distribution tray that is placed apart from the heat transfer tubes and has a plurality of holes for distributing refrigerant over the underlying heat transfer tubes; a vapor-liquid separator that is placed above the distribution tray and separates an introduced mixed refrigerant into a vapor refrigerant and a liquid refrigerant and distributes the liquid refrigerant to the distribution tray; and a tube support with a plurality of holes for passing the heat transfer tubes through, that is placed inside the housing and supports the distribution tray. Through the present disclosure, it is possible to achieve stable heat exchange performance by separating a mixed refrigerant and distributing only a liquid refrigerant and placing the distribution tray horizontal and stable.