FR3086707B1 - A REFRIGERATION SYSTEM INCLUDING A BYPASS FLOW DUCT TO COOL A COMPRESSOR MOTOR - Google Patents

A REFRIGERATION SYSTEM INCLUDING A BYPASS FLOW DUCT TO COOL A COMPRESSOR MOTOR Download PDF

Info

Publication number
FR3086707B1
FR3086707B1 FR1859081A FR1859081A FR3086707B1 FR 3086707 B1 FR3086707 B1 FR 3086707B1 FR 1859081 A FR1859081 A FR 1859081A FR 1859081 A FR1859081 A FR 1859081A FR 3086707 B1 FR3086707 B1 FR 3086707B1
Authority
FR
France
Prior art keywords
bypass
main
compressor motor
cool
refrigeration system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1859081A
Other languages
French (fr)
Other versions
FR3086707A1 (en
Inventor
Patrice Bonnefoi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss AS
Original Assignee
Danfoss AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danfoss AS filed Critical Danfoss AS
Priority to FR1859081A priority Critical patent/FR3086707B1/en
Publication of FR3086707A1 publication Critical patent/FR3086707A1/en
Application granted granted Critical
Publication of FR3086707B1 publication Critical patent/FR3086707B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
    • F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • F25B31/008—Cooling of compressor or motor by injecting a liquid

Abstract

Le système frigorifique (2) comporte un circuit de flux principal (3) comportant un évaporateur (4), un turbocompresseur (5), un condenseur (6) et un détendeur principal (7) reliés en série, et étant configuré pour transporter un flux de fluide frigorigène principal ; une conduite de flux de dérivation (8) ramifiée à partir du circuit de flux principal (3) et étant configurée pour dériver une partie du flux de fluide frigorigène principal dans la conduite de flux de dérivation (8) en tant que flux de fluide frigorigène de dérivation et pour transporter le flux de fluide frigorigène de dérivation à travers le turbocompresseur (5) afin de refroidir un moteur de compresseur et un agencement de palier du turbocompresseur (5), la conduite de flux de dérivation (8) comprenant un détendeur de dérivation (12) situé en amont du moteur de compresseur et de l'agencement de palier ; et un dispositif de commande (13) configuré pour commander les degrés d'ouverture du détendeur principal (7) et du détendeur de dérivation (12).The refrigeration system (2) comprises a main flow circuit (3) comprising an evaporator (4), a turbocharger (5), a condenser (6) and a main expansion valve (7) connected in series, and being configured to carry a main refrigerant flow; a bypass flow line (8) branched from the main flow path (3) and being configured to bypass part of the main refrigerant flow in the bypass flow line (8) as a refrigerant flow bypass and for conveying the bypass refrigerant flow through the turbocharger (5) to cool a compressor motor and a bearing arrangement of the turbocharger (5), the bypass flow line (8) comprising an expansion valve. bypass (12) located upstream of the compressor motor and the bearing arrangement; and a controller (13) configured to control the degrees of opening of the main expansion valve (7) and of the bypass expansion valve (12).

FR1859081A 2018-10-01 2018-10-01 A REFRIGERATION SYSTEM INCLUDING A BYPASS FLOW DUCT TO COOL A COMPRESSOR MOTOR Active FR3086707B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1859081A FR3086707B1 (en) 2018-10-01 2018-10-01 A REFRIGERATION SYSTEM INCLUDING A BYPASS FLOW DUCT TO COOL A COMPRESSOR MOTOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859081A FR3086707B1 (en) 2018-10-01 2018-10-01 A REFRIGERATION SYSTEM INCLUDING A BYPASS FLOW DUCT TO COOL A COMPRESSOR MOTOR

Publications (2)

Publication Number Publication Date
FR3086707A1 FR3086707A1 (en) 2020-04-03
FR3086707B1 true FR3086707B1 (en) 2021-02-12

Family

ID=65244056

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859081A Active FR3086707B1 (en) 2018-10-01 2018-10-01 A REFRIGERATION SYSTEM INCLUDING A BYPASS FLOW DUCT TO COOL A COMPRESSOR MOTOR

Country Status (1)

Country Link
FR (1) FR3086707B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039292A1 (en) * 1996-04-18 1997-10-23 Zakrytoe Aktsionernoe Obschestvo Nauchno-Proizvodstvennoe Obiedinenie 'vik' 5 OR 8 kW REFRIGERATING SYSTEM AND CENTRIFUGAL COMPRESSOR ASSEMBLY FOR SAID SYSTEM
TWI577949B (en) * 2013-02-21 2017-04-11 強生控制科技公司 Lubrication and cooling system
JP6076136B2 (en) * 2013-02-28 2017-02-08 三菱電機株式会社 Refrigeration equipment
CN105358921B (en) * 2013-06-12 2018-02-23 丹佛斯公司 Compressor with rotor cooling channel
US11274679B2 (en) * 2017-02-14 2022-03-15 Danfoss A/S Oil free centrifugal compressor for use in low capacity applications

Also Published As

Publication number Publication date
FR3086707A1 (en) 2020-04-03

Similar Documents

Publication Publication Date Title
US10184701B2 (en) Motor cooling and sub-cooling circuits for compressor
US10670282B2 (en) Air conditioning apparatus
TR201907483T4 (en) Cooling device.
DK2147265T3 (en) REFRIGERATOR AND PROCEDURE FOR RECOVERY OF REFRIGERATED FLUID
SE531333C2 (en) Air conditioning device
US6817205B1 (en) Dual reversing valves for economized heat pump
JP6223573B2 (en) Refrigeration air conditioner
EP2592368A2 (en) High-pressure control mechanism for air-cooled heat pump
WO2010037970A3 (en) Cooling circuit for the thermal regulation of an engine independent from other consumers
US10551098B2 (en) Lubricant temperature control with a flow regulating device
JP2007255864A (en) Two-stage compression type refrigerating device
JP2007016651A (en) Device for controlling oil temperature
EP3123082A1 (en) Chiller compressor rolling bearings with squeeze film dampers
FR3086707B1 (en) A REFRIGERATION SYSTEM INCLUDING A BYPASS FLOW DUCT TO COOL A COMPRESSOR MOTOR
US10935290B2 (en) Pressure spike prevention in heat pump systems
US10907642B2 (en) Compressor system with a gas temperature control at the inlet of the anti-surge line and relevant method
JP2018091540A (en) Air conditioner
FR3056641B1 (en) SYSTEM FOR COOLING A CIRCUIT OF A FIRST FLUID OF A TURBOMACHINE
JP5645413B2 (en) Air conditioner
CN107906790B (en) Air conditioner oil return system and method and air conditioner
WO2016148080A1 (en) Heat pump
PH12020050037A1 (en) Refrigeration system and operation method of the same
FR3071912B1 (en) MULTI-EVAPORATOR AIR CONDITIONING SYSTEM FOR MOTOR VEHICLE
JP2018204838A (en) Refrigeration system and control device of refrigeration system
KR20220153567A (en) heat pump

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20200403

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6