FR2237289A1 - Transformer external cooling system - with coolant flows through tapered channels to tubes with different input constrictions - Google Patents

Transformer external cooling system - with coolant flows through tapered channels to tubes with different input constrictions

Info

Publication number
FR2237289A1
FR2237289A1 FR7325059A FR7325059A FR2237289A1 FR 2237289 A1 FR2237289 A1 FR 2237289A1 FR 7325059 A FR7325059 A FR 7325059A FR 7325059 A FR7325059 A FR 7325059A FR 2237289 A1 FR2237289 A1 FR 2237289A1
Authority
FR
France
Prior art keywords
tubes
cooling system
external cooling
constrictions
channels
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.)
Granted
Application number
FR7325059A
Other languages
French (fr)
Other versions
FR2237289B1 (en
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.)
Alstom SA
Original Assignee
Unelec SA
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 Unelec SA filed Critical Unelec SA
Priority to FR7325059A priority Critical patent/FR2237289A1/en
Publication of FR2237289A1 publication Critical patent/FR2237289A1/en
Application granted granted Critical
Publication of FR2237289B1 publication Critical patent/FR2237289B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0263—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry or cross-section of header box
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/0282—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by varying the geometry of conduit ends, e.g. by using inserts or attachments for modifying the pattern of flow at the conduit inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
    • F28D2021/0031—Radiators for recooling a coolant of cooling systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)

Abstract

The external cooling system has top and bottom channels connecting the transformer tank to a number of vertical tubes, using natural convection. The cross-sectional areas of the channels and of the top of each tube are such that the coolant flow is equal in the various tubes. Each of these areas is reduced as the distance tank-tube increases. The coolant enters channel (2), descends through a number of vertical tubes (3), and re-enters the tank at the bottom via channel (4). Channels (2) and (4) may be cylindrical and are tapered. Additional control of flow is achieved by appropriate aperture sin constricting pieces (5) at the top of each vertical tube.
FR7325059A 1973-07-09 1973-07-09 Transformer external cooling system - with coolant flows through tapered channels to tubes with different input constrictions Granted FR2237289A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7325059A FR2237289A1 (en) 1973-07-09 1973-07-09 Transformer external cooling system - with coolant flows through tapered channels to tubes with different input constrictions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7325059A FR2237289A1 (en) 1973-07-09 1973-07-09 Transformer external cooling system - with coolant flows through tapered channels to tubes with different input constrictions

Publications (2)

Publication Number Publication Date
FR2237289A1 true FR2237289A1 (en) 1975-02-07
FR2237289B1 FR2237289B1 (en) 1977-09-02

Family

ID=9122252

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7325059A Granted FR2237289A1 (en) 1973-07-09 1973-07-09 Transformer external cooling system - with coolant flows through tapered channels to tubes with different input constrictions

Country Status (1)

Country Link
FR (1) FR2237289A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500390A1 (en) * 1991-02-22 1992-08-26 Kabushiki Kaisha Toshiba Gas-insulated electric apparatus
WO2024008650A1 (en) * 2022-07-07 2024-01-11 Valeo Systemes Thermiques Device for thermal regulation, in particular for cooling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0500390A1 (en) * 1991-02-22 1992-08-26 Kabushiki Kaisha Toshiba Gas-insulated electric apparatus
US5252778A (en) * 1991-02-22 1993-10-12 Kabushiki Kaisha Toshiba Gas-insulated electric apparatus
WO2024008650A1 (en) * 2022-07-07 2024-01-11 Valeo Systemes Thermiques Device for thermal regulation, in particular for cooling
FR3137752A1 (en) * 2022-07-07 2024-01-12 Valeo Systemes Thermiques Thermal regulation device, in particular cooling

Also Published As

Publication number Publication date
FR2237289B1 (en) 1977-09-02

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Legal Events

Date Code Title Description
ST Notification of lapse