EP3683530A1 - Luftgekühlter wärmetauscher - Google Patents

Luftgekühlter wärmetauscher Download PDF

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Publication number
EP3683530A1
EP3683530A1 EP19020036.0A EP19020036A EP3683530A1 EP 3683530 A1 EP3683530 A1 EP 3683530A1 EP 19020036 A EP19020036 A EP 19020036A EP 3683530 A1 EP3683530 A1 EP 3683530A1
Authority
EP
European Patent Office
Prior art keywords
substantially horizontal
heat exchanger
collector pipe
fan
suspension means
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
EP19020036.0A
Other languages
English (en)
French (fr)
Other versions
EP3683530C0 (de
EP3683530B1 (de
Inventor
Thierry Bultot
Trung LUU
Pascal Malpoix
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.)
Esindus SAU
Original Assignee
Hamon Thermal Europe 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 Hamon Thermal Europe SA filed Critical Hamon Thermal Europe SA
Priority to EP19020036.0A priority Critical patent/EP3683530B1/de
Publication of EP3683530A1 publication Critical patent/EP3683530A1/de
Application granted granted Critical
Publication of EP3683530C0 publication Critical patent/EP3683530C0/de
Publication of EP3683530B1 publication Critical patent/EP3683530B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans
    • 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
    • F28D1/0233—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 air flow channels
    • F28D1/024—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 air flow channels with an air driving element
    • 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
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2280/00—Mounting arrangements; Arrangements for facilitating assembling or disassembling of heat exchanger parts

Definitions

  • the invention relates to an air-cooled heat exchanger comprising heat exchanger units associated to a fan driven into rotation by a driving motor with interposition or not of a gearing box.
  • At least the driving motor is suspended by a suspension means (40) connected to a collector pipe and/or intermediate (advantageously walkway) bridging element of a heat exchanger unit, whereby at least a part of the suspension means is mounted movable with respect to the said collector pipe and/or intermediate (advantageously walkway) bridging element, whereby at least the driving motor is movably mounted with respect to the bearing element.
  • Air cooled heat exchangers are used for years for cooling or condensing a liquid medium or vapour, such as water or water vapour, by transferring calories to air.
  • Such exchangers comprise a structure bearing one or more tube bundles, a fan driven into rotation by a drive assembly, and a plenum for directing the air flow form or to the fan.
  • the fan can be for generating an induced air draft through the tube bundle (the fan being located above the tube bundle) or a forced air draft through the tube bundle (the fan being located below the tube bundle).
  • the motor and its gearing box are mounted above the fan, meaning that the motor and gearing box will be submitted to weather conditions, like the heat of the sun, rain, dust storm, hail, etc... as well as problem due to the induced air draft by means exposed to hot air due to heat exchange, with possible dust.
  • the gearing will thus be heated by the sun and/or heated air, meaning that the oil will often have to be replaced and/or gearing box will have to be oversized.
  • the motors are often the place where the flashes strike.
  • the invention aims at least to solve one or another of said problems.
  • the invention relates to an air-cooled heat exchanger assembly (1) comprising at least one heat exchanger unit (10) for cooling and condensing at least partly a first fluid medium (F1) flowing in at least one passage of the heat exchanger unit (10) having at least an inner face contacting the said first fluid medium and at least one outer face not contacting said first fluid medium, by means of an air flow (F2) contacting at least one outer face of the heat exchanger unit (10), whereby the said first fluid medium (F1) and said air flow (F2) are not in direct contact together, said air-cooled heat exchanger assembly (1) comprising at least:
  • the building and maintenance works are facilitated.
  • the motor acts as means stabilising the heat exchanger unit, the centre of gravity thereof being lowered.
  • lighter devices for lifting in place the different parts of the heat exchanger can be used, whereby preventing some accidents or some damages during the building.
  • the at least a part of the suspension means (40) movable with respect to the bearing element (11b,13b;12b,14b;41) is at least vertically movable with respect the bearing element (11b,13b;12b,14b;41) between a first position in which the said part of the suspension means (40) is adjacent to the bearing element (1 1b,13b;12b,14b;41), and a second position in which the said part of the suspension means (40) is downwards distant from the bearing element (11b,13b;12b,14b;41).
  • the said part of the suspension means (40) is lowered up to the ground level, whereby enabling the maintenance works of the motor or its replacement.
  • the intermediate piece is a gearing box (32) which is suspended by a suspension means (40bis) connected to a bearing element selected from the group consisting of the first substantially horizontal collector pipe (11b,13b), the second substantially horizontal collector pipe (12b,14b), and a bridging element (41) forming a connection between the said first substantially horizontal collector pipe (11b,13b) and the second substantially horizontal collector pipe (12b,14b), so that the gearing box (32) extends below the average vertical level (L1) of the first and second substantially horizontal collector pipes (11b,13b;12b,14b) (preferably below the level of the first and second horizontal collector pipes), whereby at least a part of the suspension means (40bis) is mounted movable with respect to the bearing element (11b,13b;12b,14b;41), whereby at least the gearing box (32) is movably mounted with respect to the bearing element (11b,13b;12b,14b;41).
  • a suspension means (40bis) connected to a bearing element selected from the group
  • the said part of the suspension means (40bis) is lowered up to the ground level, whereby enabling the maintenance works of the gearing box or its replacement.
  • the heat exchanger assembly of the invention has one or more of the following characteristics or details:
  • the invention relates also to a method of building or maintaining an air-cooled heat exchanger comprising a structure (S) supporting and/or suspending at least one air cooled heat exchanger assembly (1) according to the invention (as disclosed here above), said method comprising at least one of the following steps:
  • the method comprises at least one of the following further steps:
  • the air-cooled heat exchanger is preferably transportable as a kit.
  • FIG. 1 shows schematically an air-cooled heat exchanger assembly (1) comprising at least one heat exchanger unit (10) for cooling and condensing at least partly a first fluid medium (F1) flowing in at least one passage of the heat exchanger unit (10) having at least an inner face contacting the said first fluid medium and at least one outer face not contacting said first fluid medium, by means of an air flow (F2) contacting at least one outer face of the heat exchanger unit (10), whereby the said first fluid medium (F1) and said air flow (F2) are not in direct contact together, said air-cooled heat exchanger assembly (1) comprising at least:
  • the building and maintenance works are facilitated.
  • the motor acts as means stabilising the heat exchanger unit, the centre of gravity thereof being lowered.
  • lighter devices for lifting in place the different parts of the heat exchanger can be used, whereby preventing some accidents or some damages during the building.
  • a part of the suspension means 40 can be separated from the connector pipes 11b,12b.
  • the motor 31 is thus placed in a cool area, i.e. protected from the sun and from the heated air flowing through the first and second heat exchanger elements (11,12), and is even located in an area with low turbulence of solid particles or dust and less or not submitted to vibration due to environmental wind or other weather conditions.
  • the motor is also located in a more accessible area. As the motor is more accessible, it is also easier to detect possible problems by detecting higher noise level at the motor. It can also be more easily be associated with noise attenuating means, like a box or noise attenuating enclosure.
  • the said box or enclosure can also advantageously be fire-proof or fire resistant.
  • the motor 31 can be of the permanent magnet type. In that case no gearing box 32 is required.
  • the motor 31 is operating with a gearing box.
  • the at least a part of the suspension means (40) movable with respect to the bearing element (11b,13b;12b,14b;41) is at least (a) horizontally (arrow X) with respect to the collector pipes so as to separate the driving motor 31 from the gearing box 32, and (b) vertically (Arrow Y1) movable with respect the bearing element (11b,13b;12b,14b;41) between a first position in which the said part of the suspension means (40) is adjacent to the bearing element (11b,13b;12b,14b;41), and a second position in which the said part of the suspension means (40) is downwards distant from the bearing element (1 1b,13b;12b,14b;41).
  • the said part of the suspension means (40) is lowered up to the ground level, after a first horizontal movement, whereby enabling the maintenance works of the motor or its replacement at ground level.
  • the suspension means (40) of the motor (31) is provided with a plate element (401) with lateral arms (402) having adjacent to the ends with profiles (403) forming each a groove for receiving a protuberance (110b,120b) of a collector pipe (11b,12b), whereby enabling a sliding of the suspension means along the collector pipes (11b, 12b).
  • the gearing box (32) is suspended by a distinct suspension means (40bis) connected to a bearing element selected from the group consisting of the first substantially horizontal collector pipe (11b,13b), the second substantially horizontal collector pipe (12b,14b), and a bridging element (41) forming a connection between the said first substantially horizontal collector pipe (11b,13b) and the second substantially horizontal collector pipe (12b,14b), so that the gearing box (32) extends below the average vertical level (L1) of the first and second substantially horizontal collector pipes (11b,13b;12b,14b), whereby at least a part of the suspension means (40bis) is mounted movable (vertically - arrow Y2) with respect to the bearing element (11b,13b;12b,14b;41), whereby at least the gearing box (32) is movably mounted with respect to the bearing element (11b,13b;12b,14b;41).
  • a distinct suspension means (40bis) connected to a bearing element selected from the group consisting of the first substantially horizontal collector
  • the said part of the suspension means (40bis) is lowered up to the ground level, whereby enabling the maintenance works of the gearing box or its replacement.
  • the two suspension means 40,40bis can possibly be such that they are able to move simultaneously in vertical direction. In that case, one single suspension means 40 can be used for suspending to the heat exchanger unit both motor and gearing box (see figures 15 to 17 - arrow Y1).
  • the heat exchanger assembly has moreover the following characteristics or details:
  • a gliding means can be used.
  • a gliding means is for example (a) a layer reducing the friction between said upper end of the driving shaft and the connector (24) or the fan shaft (213), said layer coating parts of the driving shaft and/or of the connector or the fan shaft (213) or an intermediate gliding element (27,24K) extending between the driving shaft (33) and the connector (24) or the fan shaft (213), whereby said gliding element can also be part of the system for connecting the driving shaft (33) to the tube or connector (24).
  • the hollow (25) of the connector (24) and a portion of the driving shaft (33) adjacent to the upper free end (33U) thereof are associated with interposition of a gliding means (27).
  • the driving shaft (33) is for example hollow and has groove openings (33G) for receiving the ends of vertical keys (24K) connected to the tube (24).
  • the tube is advantageously provided with vertical grooves (24G) extending from the free end of the tube (24).
  • the key can be a cross element which can be moved from the upper end (24U) into the groove (24G), and thereafter within the grooves (33G).
  • At least the driving motor (31) is suspended by a suspension means (40) connected to at least one bearing element selected from the group consisting of the first substantially horizontal collector pipe (13b), the second substantially horizontal collector pipe (14b), and a bridging element (41) forming a connection between the said first substantially horizontal collector pipe (13b) and the second substantially horizontal collector pipe (14b), so that at least the driving motor (31) extends below the average vertical level (L1) of the first and second substantially horizontal collector pipes (13b;14b), whereby at least a part of the suspension means (40) is mounted movable with respect to the bearing element (13b;14b;41), whereby at least the driving motor (31) is movably (advantageously removably) mounted with respect to the bearing element (13b;14b;41).
  • a suspension means (40) connected to at least one bearing element selected from the group consisting of the first substantially horizontal collector pipe (13b), the second substantially horizontal collector pipe (14b), and a bridging element (41) forming a connection between
  • the bridging element (41) is formed in said embodiment by the ring supporting element (29), the ring air guiding element (28), the fan supporting bridge (22).
  • the motor and gearing are located well below the collector pipes (13b) and (14b), the driving shaft (33) is shorter, while possibly, when using lengthy driving shaft, the motor and the gearing box (31,32) are near the ground level.
  • the air-cooled heat exchanger assembly of the embodiment of figure 1 is for example suspended on a structure (S) by the distributor pipes (11a, 12a), while the heat exchanger assembly of figure (23 ) is suspended by the distributor pipe (13a).
  • the driving system (30) of the fan is suspended to the heat exchanger.
  • the bridge (22), the ring supporting means (29), the ring guiding element (28) and the fan (21) and its shaft (213) are supported by the distributor pipes (12a,11a).
  • the bridge (22), the ring supporting means (29), the ring guiding element (28) and the fan (21) and its shaft (213) are all suspended to the heat exchanger, via its collector pipes (13b,14b).
  • the embodiment of figure 23 is an embodiment enabling a fully suspended heat exchanger.
  • the driving shaft (33) can be provided with a bearing or ring (54) adapted to co-operate with pivoting arms (55) provided with a recess (55bis) for receiving a portion of the bearing (54) or ring (54). Said position can be maintained only temporarily, for example during the vertical displacement of the gearing box.
  • the arms (55) are for example pivotably mounted on the bridge (41).
  • the lower end of the driving shaft is provided with teeth (33T) to be engaged within a recess of the gearing box so that the gearing box can drive into rotation the driving shaft (33).
  • the invention relates also to a method of building or maintaining an air-cooled heat exchanger comprising a structure (S) supporting and/or suspending at least one air cooled heat exchanger assembly (1) according to the invention (as disclosed here above), said method comprising at least one of the following steps:
  • the method comprises at least one of the following further steps:
  • the air-cooled heat exchanger is preferably transportable as a kit. All parts of the kit have an acceptable weight, whereby enabling an easy transport, for example in containers, while facilitating the building on site.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP19020036.0A 2019-01-18 2019-01-18 Luftgekühlter wärmetauscher Active EP3683530B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19020036.0A EP3683530B1 (de) 2019-01-18 2019-01-18 Luftgekühlter wärmetauscher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19020036.0A EP3683530B1 (de) 2019-01-18 2019-01-18 Luftgekühlter wärmetauscher

Publications (3)

Publication Number Publication Date
EP3683530A1 true EP3683530A1 (de) 2020-07-22
EP3683530C0 EP3683530C0 (de) 2023-08-30
EP3683530B1 EP3683530B1 (de) 2023-08-30

Family

ID=65138799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19020036.0A Active EP3683530B1 (de) 2019-01-18 2019-01-18 Luftgekühlter wärmetauscher

Country Status (1)

Country Link
EP (1) EP3683530B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB958481A (en) * 1962-03-14 1964-05-21 Happel Gmbh Air-cooled heat exchanger
GB968430A (en) * 1961-10-31 1964-09-02 Happel Ges Mit Beschraenkter H Improved air cooled heat exchanger
US3185213A (en) * 1960-03-22 1965-05-25 Wartenberg Kurt Wilhelm Compact airtype exhaust steam condenser system
US3707185A (en) * 1971-03-25 1972-12-26 Modine Mfg Co Modular air cooled condenser
EP3201550A1 (de) 2014-09-29 2017-08-09 Enexio Germany GmbH Anlage zur kondensation von dampf

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185213A (en) * 1960-03-22 1965-05-25 Wartenberg Kurt Wilhelm Compact airtype exhaust steam condenser system
GB968430A (en) * 1961-10-31 1964-09-02 Happel Ges Mit Beschraenkter H Improved air cooled heat exchanger
GB958481A (en) * 1962-03-14 1964-05-21 Happel Gmbh Air-cooled heat exchanger
US3707185A (en) * 1971-03-25 1972-12-26 Modine Mfg Co Modular air cooled condenser
EP3201550A1 (de) 2014-09-29 2017-08-09 Enexio Germany GmbH Anlage zur kondensation von dampf
EP3201550B1 (de) * 2014-09-29 2018-06-20 Enexio Germany GmbH Anlage zur kondensation von dampf

Also Published As

Publication number Publication date
EP3683530C0 (de) 2023-08-30
EP3683530B1 (de) 2023-08-30

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