公开(公告)号：US20220333872A1

公开(公告)日：2022-10-20

申请号：US17857893

申请日：2022-07-05

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsuharu NUMATA ,  Kou TERAI ,  Yutaka SHIBATA ,  Hirokazu FUJINO

IPC: F28D9/00 ,  F28F3/08 ,  F28D21/00

Abstract: A shell and plate heat exchanger includes a shell forming an internal space, and a plate stack housed in the internal space. A plurality of refrigerant channels communicate with the internal space, and a plurality of heating medium channels are blocked from the internal space. Each of the refrigerant channels is adjacent to an associated one of the heating medium channels with heat transfer plate interposed between. Each of the heat transfer plates includes a first communication hole that communicates with the heating medium channels to introduce the heating medium, a second communication hole formed below the first communication hole that communicates with the heating medium channels to emit the heating medium, and a guide crossing between the first and second communication holes to guide the heating medium that has flowed into the heating medium channels from the first communication hole toward side portions of the heat transfer plate.

公开(公告)号：US20190249309A1

公开(公告)日：2019-08-15

申请号：US16332958

申请日：2017-09-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Yutaka SHIBATA

IPC: C23C22/68 ,  C23C22/78 ,  C23F11/18

CPC classification number: C23C22/68 ,  C23C22/78 ,  C23F11/00 ,  C23F11/18 ,  F28F19/00 ,  F28F19/06 ,  F28F21/08

Abstract: A pipe is manufactured through injecting a chloride ion-containing aqueous solution into a copper pipe to fill the copper pipe, thereby forming a copper oxide film on an inner surface of the copper pipe.

公开(公告)号：US20220178595A1

公开(公告)日：2022-06-09

申请号：US17684033

申请日：2022-03-01

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kou TERAI ,  Mitsuharu NUMATA ,  Yutaka SHIBATA ,  Hirokazu FUJINO

IPC: F25B39/02 ,  F28D5/02 ,  F28F9/22

Abstract: A liquid refrigerant distributor is used for a falling liquid film evaporator. The liquid refrigerant distributor includes a gas-liquid two-phase pipe through which a gas-liquid two-phase refrigerant flows, and a first refrigerant tub including a liquid reservoir section into which the gas-liquid two-phase refrigerant flows from the gas-liquid two-phase pipe. The first refrigerant tub further includes a droplet collector configured to collect droplets contained in a gas refrigerant separated by the liquid reservoir section.

公开(公告)号：US20250044035A1

公开(公告)日：2025-02-06

申请号：US18922465

申请日：2024-10-22

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsuharu NUMATA ,  Daichi UTSUMI ,  Ken SATO ,  Yutaka SHIBATA ,  Masafumi UDA

IPC: F28D9/00 ,  F25B39/02

Abstract: A heat exchanger is provided in a refrigeration apparatus (R) configured to be capable of performing a refrigeration cycle where an evaporation pressure of a refrigerant is lower than an atmospheric pressure. The heat exchanger functions as an evaporator. The heat exchanger includes a shell (20) forming an internal space (21). The heat exchanger includes a plate stack (40) arranged in the internal space (21) and including a plurality of heat transfer plates (50a, 50b).

公开(公告)号：US20220341637A1

公开(公告)日：2022-10-27

申请号：US17860617

申请日：2022-07-08

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Mitsuharu NUMATA ,  Yutaka SHIBATA ,  Kou TERAI

IPC: F25B39/04 ,  F28D9/00 ,  F28F3/04 ,  F28F3/08 ,  F28F9/22 ,  F28F9/02

Abstract: A shell and plate heat exchanger includes a shell forming an internal space, and a plate stack housed in the internal space. The plate stack includes a plurality of heat transfer plates stacked and joined together. The shell and plate heat exchanger allows a refrigerant that has flowed into the internal space to be condensed. A refrigerant channel communicates with the internal space and allows the refrigerant to flow through. A heating medium channel is blocked from the internal space and allows a heating medium to flow through. The refrigerant channel and the heating medium channel are alternately arranged between adjacent heat transfer plates. A meandering portion is provided in at least a lower portion of the plate stack. The meandering portion is configured to meander the refrigerant condensed on a surface of each of the heat transfer plates. The meandering portion is provided by processing the heat transfer plates.