GB1370702A - Air cooled heat exchanger - Google Patents

Air cooled heat exchanger

Info

Publication number
GB1370702A
GB1370702A GB2402772A GB2402772A GB1370702A GB 1370702 A GB1370702 A GB 1370702A GB 2402772 A GB2402772 A GB 2402772A GB 2402772 A GB2402772 A GB 2402772A GB 1370702 A GB1370702 A GB 1370702A
Authority
GB
United Kingdom
Prior art keywords
impeller
pitch
positive
blades
adjustable
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.)
Expired
Application number
GB2402772A
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.)
Hudson Products Corp
Original Assignee
Hudson Products Corp
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 Hudson Products Corp filed Critical Hudson Products Corp
Publication of GB1370702A publication Critical patent/GB1370702A/en
Expired legal-status Critical Current

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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings
    • F04D29/36—Blade mountings adjustable
    • F04D29/362—Blade mountings adjustable during rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/007—Axial-flow pumps multistage fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/024—Multi-stage pumps with contrarotating parts
    • 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
    • F04D27/002—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying geometry within the pumps, e.g. by adjusting vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28B—STEAM OR VAPOUR CONDENSERS
    • F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/06—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using air or other gas as the cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/08—Fluid driving means, e.g. pumps, fans
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/90—Cooling towers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1370702 Air cooled heat exchangers HUDSON PRODUCTS CORP 22 May 1972 [27 Dec 1971] 24027/72 Heading F4S [Also in Division F1] In a heat exchanger in which a process fluid to be cooled flows through tubes 16 across which air is passed by an axial-flow fan assembly to cool said fluid, the fan assembly comprises a pair of impellers 19, 20 mounted coaxially within a fan ring and close together, the blades of impeller 19 having a positive pitch which is non- adjustable during rotation, and the blades of impeller 20 being adjustable by remotely operable means within a range between positive pitches greater than and less than the positive pitch of the blades of impeller 19. The supply of power fluid from a conduit 31 for adjusting the pitch is controlled by a transducer 30 in accordance with the temperature of a fluid being cooled in the tubes 16 by the fan. The impeller 19 may be adjustable in pitch when stationary. At design flow, the impeller 20 is adjusted to a positive pitch greater than that of impeller 19. Reduction of the pitch of impeller 20 below that of impeller 19 will usually not reduce the air flow, which is then determined by the pitch of impeller 19, until the pitch of impeller 20 is reduced to a negative value. By reducing the pitch of impeller 20 to a negative value greater than the positive value of the pitch of impeller 19, the air flow may be reversed. A further adjustable-pitch impeller may be provided downstream of the impeller 20. Instead, an impeller identical to the impeller 19 but adjusted to a greater pitch may be provided between the impellers 19, 20. The blades of the second and third impellers may be circumferentially offset relative to those of the respective immediately preceding impeller to avoid the most turbulent part of the air stream.
GB2402772A 1971-12-27 1972-05-22 Air cooled heat exchanger Expired GB1370702A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21255571A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
GB1370702A true GB1370702A (en) 1974-10-16

Family

ID=22791514

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2402772A Expired GB1370702A (en) 1971-12-27 1972-05-22 Air cooled heat exchanger

Country Status (10)

Country Link
US (1) US3768546A (en)
JP (1) JPS4876104A (en)
BE (1) BE785018A (en)
CA (1) CA960623A (en)
DE (1) DE7207871U (en)
ES (1) ES403621A1 (en)
FR (1) FR2166868A5 (en)
GB (1) GB1370702A (en)
IT (1) IT958184B (en)
NL (1) NL149258B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105157446A (en) * 2015-09-10 2015-12-16 陈盛标 Coaxial double-fan cooling tower
WO2015199819A1 (en) * 2014-06-26 2015-12-30 Exxonmobil Upstream Research Company Pre-cooler for air-cooled heat exchangers

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867062A (en) * 1971-09-24 1975-02-18 Theodor H Troller High energy axial flow transfer stage
US4008007A (en) * 1975-05-23 1977-02-15 Hudson Products Corporation Axial flow fan assembly
US4221541A (en) * 1977-02-28 1980-09-09 Axial International Aktiengesellschaft Fan comprising a blade pitch control mechanism
US4235571A (en) * 1977-10-25 1980-11-25 Hudson Products Corporation Cooling equipment
US4232729A (en) * 1978-06-01 1980-11-11 South African Coal, Oil & Gas Corp., Limited Air-cooled heat exchanger for cooling industrial liquids
US4275831A (en) * 1978-12-26 1981-06-30 Sbs Corporation Make up air system
US4767270A (en) * 1986-04-16 1988-08-30 The Boeing Company Hoop fan jet engine
DE4016563A1 (en) * 1990-05-23 1991-11-28 Schako Metallwarenfabrik OUTLET
US6244821B1 (en) 1999-02-19 2001-06-12 Mechanization Systems Company, Inc. Low speed cooling fan
US6253716B1 (en) * 1999-07-07 2001-07-03 Horton, Inc. Control system for cooling fan assembly having variable pitch blades
JP3467697B2 (en) * 2001-05-16 2003-11-17 セイコーエプソン株式会社 Cooling device for electro-optical device and projector
TWI226410B (en) * 2003-07-30 2005-01-11 Sunonwealth Electr Mach Ind Co Serial-connected heat dissipating fan module
US20060133037A1 (en) * 2003-09-03 2006-06-22 Sunonwealth Electric Machine Industry Co., Ltd. Heat-dissipating module
US20050090196A1 (en) * 2003-09-23 2005-04-28 Jean-Guy Dube Cooling fan
US6945747B1 (en) 2004-03-26 2005-09-20 Miller Willis F Dual rotor wind turbine
US7734381B2 (en) 2004-12-13 2010-06-08 Innovive, Inc. Controller for regulating airflow in rodent containment system
EP1830628B1 (en) * 2004-12-13 2012-05-02 Innovive, Inc. Containment systems and components for animal husbandry
US7874268B2 (en) 2004-12-13 2011-01-25 Innovive, Inc. Method for adjusting airflow in a rodent containment cage
US8082885B2 (en) 2004-12-13 2011-12-27 Innovive, Inc. Containment systems and components for animal husbandry: rack module assembly method
US7739984B2 (en) 2004-12-13 2010-06-22 Innovive, Inc. Containment systems and components for animal husbandry: cage racks
US20070169715A1 (en) 2004-12-13 2007-07-26 Innovive Inc. Containment systems and components for animal husbandry
US8156899B2 (en) 2004-12-13 2012-04-17 Innovive Inc. Containment systems and components for animal husbandry: nested covers
US7954455B2 (en) 2005-06-14 2011-06-07 Innovive, Inc. Cage cover with filter, shield and nozzle receptacle
US7955055B1 (en) 2006-04-14 2011-06-07 Macroair Technologies, Inc. Safety retaining system for large industrial fan
TWI327191B (en) * 2006-11-23 2010-07-11 Delta Electronics Inc Serial fan assembly and connection structure thereof
US7726945B2 (en) * 2007-02-08 2010-06-01 Rite-Hite Holding Corporation Industrial ceiling fan
WO2008127998A1 (en) 2007-04-11 2008-10-23 Innovive, Inc. Animal husbandry drawer caging
CA2742570C (en) * 2008-11-07 2016-12-06 Innovive, Inc. Rack system and monitoring for animal husbandry
DE102009007013A1 (en) * 2009-01-31 2010-08-12 Deutsches Zentrum für Luft- und Raumfahrt e.V. Engine, especially CROR propulsion, for an aircraft
US8579588B1 (en) 2009-04-29 2013-11-12 Macroair Technologies, Inc. Hub assembly for a large cooling fan
US9366170B2 (en) 2010-02-03 2016-06-14 Jr Koop, Inc. Air heating apparatus
US9516857B2 (en) 2010-10-11 2016-12-13 Innovive, Inc. Rodent containment cage monitoring apparatus and methods
US10100613B2 (en) 2013-02-22 2018-10-16 Exxonmobil Upstream Research Company Subwater heat exchanger
US10729098B2 (en) 2013-07-01 2020-08-04 Innovive, Inc. Cage rack monitoring apparatus and methods
US9995305B2 (en) * 2013-10-08 2018-06-12 Regal Beloit America, Inc. Fluid flow apparatus, fan assembly and associated method
EP3149336B1 (en) 2014-05-30 2020-08-12 Almishari, Ibrahim System and method of a fan
WO2016014600A1 (en) * 2014-07-21 2016-01-28 Prime Datum Development Company, Llc Cooling schemes and methods for cooling tower motors
EP3177134B1 (en) 2014-07-25 2022-08-17 Innovive, Inc. Animal containment enrichment compositions and methods
EP3531827B1 (en) 2016-10-28 2022-10-12 Innovive, Inc. Metabolic caging
RU184773U1 (en) * 2018-06-15 2018-11-08 Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" INSTALLING NATURAL GAS COOLING
US11686321B2 (en) * 2021-11-10 2023-06-27 Air Cool Industrial Co., Ltd. Ceiling fan having double-layer blades

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US878022A (en) * 1906-10-29 1908-02-04 C F Roper & Company Speed-controlling reversing-propeller.
US1402869A (en) * 1920-10-26 1922-01-10 Administrator Carl Knutson Water-circulating device for gas engines
US1909611A (en) * 1928-10-01 1933-05-16 Hartzell Industries Motor support
GB357368A (en) * 1930-09-19 1931-09-24 Roe A V & Co Ltd Improvements relating to fans or blowers
US2313413A (en) * 1940-07-02 1943-03-09 John R Weske Axial flow fan
US2407630A (en) * 1942-11-19 1946-09-17 Dewan Leon Supercharger
US2681178A (en) * 1950-04-24 1954-06-15 Marley Company Inc Laminated fan ring for cooling towers
US2739655A (en) * 1951-12-17 1956-03-27 Hudson Engineering Corp Variable pitch fan
US2826395A (en) * 1954-07-19 1958-03-11 Hudson Engineering Corp Atmospheric heat exchange apparatus and fan therefor
US2982361A (en) * 1958-12-19 1961-05-02 United Aircraft Corp Variable camber blading

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015199819A1 (en) * 2014-06-26 2015-12-30 Exxonmobil Upstream Research Company Pre-cooler for air-cooled heat exchangers
CN105157446A (en) * 2015-09-10 2015-12-16 陈盛标 Coaxial double-fan cooling tower

Also Published As

Publication number Publication date
ES403621A1 (en) 1976-01-01
US3768546A (en) 1973-10-30
FR2166868A5 (en) 1973-08-17
CA960623A (en) 1975-01-07
DE2209885B2 (en) 1976-05-06
NL149258B (en) 1976-04-15
IT958184B (en) 1973-10-20
NL7202642A (en) 1972-05-25
DE2209885A1 (en) 1973-07-12
AU4218472A (en) 1973-09-06
BE785018A (en) 1972-10-16
JPS4876104A (en) 1973-10-13
DE7207871U (en) 1972-11-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee