US20130306264A1 - Fluid cooling apparatus - Google Patents

Fluid cooling apparatus Download PDF

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Publication number
US20130306264A1
US20130306264A1 US13/261,669 US201113261669A US2013306264A1 US 20130306264 A1 US20130306264 A1 US 20130306264A1 US 201113261669 A US201113261669 A US 201113261669A US 2013306264 A1 US2013306264 A1 US 2013306264A1
Authority
US
United States
Prior art keywords
filter
belt
air
cooling apparatus
cooling
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.)
Abandoned
Application number
US13/261,669
Other languages
English (en)
Inventor
Guiseppe Zeolla
Davide Rini
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.)
Hydac AG
Original Assignee
Hydac AG
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 Hydac AG filed Critical Hydac AG
Assigned to HYDAC AG reassignment HYDAC AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RINI, DAVIDE, ZEOLLA, GUISEPPE
Publication of US20130306264A1 publication Critical patent/US20130306264A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/042—Controlling the temperature of the fluid
    • F15B21/0423—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/01—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using means for separating solid materials from heat-exchange fluids, e.g. filters

Definitions

  • the invention relates to a fluid cooling apparatus with a heat exchanger device, which cools heated fluid through the action of a cooling air stream passed through it.
  • Cooling devices of this kind are known from the prior art.
  • DE10 2008 027 424 A1 discloses such a cooling apparatus that includes an associated filter device for filtering the fluid that must be cooled, for example in the form of hydraulic or lubricating oil or the like, and that can be forwarded to a consumer.
  • the heat exchanger device that constitutes the actual cooling unit is formed by a plate-shaped cellular radiator in this type of device and mounted to a fan housing of an air-flow device containing a fan that is powered by a motor, and that generates the cooling air stream flowing through the cellular radiator.
  • Devices of this kind are often used in systems that are operated at locations where it must be expected that the ambient air, which is used as cooling air, will be loaded with contaminants, such as dust particles, soot particles, or the like.
  • contaminants such as dust particles, soot particles, or the like.
  • This is primarily a problem in systems that are operated outdoors, for example machinery in the construction industry equipped with an operating hydraulic system or a hydrostatic traveling drive, or in wind turbine generator systems where the heavily loaded transmission is provided with an oil cooler.
  • particles, such as dust or soot particles or the like form accretions on the cooling unit, thereby causing clogging that is accompanied by a corresponding reduction of the flow rate of the cooling air stream.
  • cooling unit To avoid damage or failures in the connected consumer loads due to a reduction of the cooling capacity, cleaning of the cooling unit is compulsory in an effort to remove contaminations.
  • the involved labor complexity is considerable; these efforts are especially time-consuming when the cooling unit is disposed at a location that is cumbersome to reach, as is the case, for example, with cooling devices that are located in the power houses of wind turbine generator systems, where any cleaning work must be performed high off the ground and after climbing or ascending the tower of the facility.
  • An essential special aspect of the invention provides for an air filter arrangement in the flow path of the cooling air stream, upstream of the heat exchanger device.
  • the required maintenance complexity for a reliable operation is limited herein to returning the air filter arrangement to a functional state, if necessary.
  • This task can be performed faster and easier than cleaning the cooling unit, such as by implementing a replacement step in the course of which the totality of the air filter arrangement or the filter medium thereof is replaced, or a fresh surface section of a filter material is brought in position on the cooling unit.
  • an air flow apparatus that generates a cooling air stream by means of a motor-operated fan.
  • the usual velocities of the cooling air stream that are applicable with such a forced cooling means offer the possibility of optimally designing the filter unit of the air filter arrangement in such a manner that even fine dirt particles, like fine dusts, are safely separated.
  • the arrangement is advantageously selected in such a manner that the air filter arrangement constitutes a filter area that is disposed upstream of the air inlet area.
  • the filter area therein can be constituted of a filter mat that is retained inside a frame, which is adjusted to an air inlet area of the cooling unit. Replacement processes can be achieved with particular ease simply by removing the used filter mat from the frame and inserting a fresh filter mat.
  • the apparatus is arranged such that the frame includes at least one grate that rests as a supporting structure against one side of the filter mat. This allows for the use of soft filter mats without intrinsic rigidity, for example nonwoven filters or paper filters.
  • an air filter arrangement in the form of a continuous belt filter device that includes a filter belt which constitutes the filter surface and that can be moved in front of the air inlet area of the cooling unit.
  • the continuous filter belt is moved in front of the cooling unit in such a manner that a contaminated longitudinal section of the filter belt is moved away from the air inlet area of the cooling unit and a fresh longitudinal section of the filter belt is moved to the location in front of the air inlet area. It is especially advantageous, when the filter belt is transported by a motor, such that the operator does not require access to the device that is involved in order to carry out maintenance work.
  • the apparatus is especially advantageous for the apparatus to be provided with a signaling device for detecting any contamination of the filter area, based on a contamination-induced reduction of the flow rate of the cooling air stream that passes through the filter area, and that issues an alert to the operator.
  • a signaling device for detecting any contamination of the filter area, based on a contamination-induced reduction of the flow rate of the cooling air stream that passes through the filter area, and that issues an alert to the operator.
  • the movement of the filter belt of the belt filter apparatus can be controlled by the signaling device in such a manner that contaminated belt sections of the filter belt are automatically replaced with fresh belt sections, whereby the maintenance of the apparatus is automated.
  • the apparatus can be disposed such that the belt transportation device routes any contaminated belt sections of the continuous filter belt that are located upstream of the cooling unit through the flow path that is located downstream the cooling unit and that dirt particles are blown off by the cooling air stream; afterwards, the belt sections that have been cleaned in this manner are returned to the air inlet area.
  • a filter belt is thus reused following a cleaning of the belt, which is performed inside the device itself, meaning filter material only needs replacing, if at all, after a corresponding number of cleaning cycles, whereby the operating costs are lowered.
  • FIG. 1 shows, by way of a perspective exploded view, a fluid cooling device according the prior art
  • FIG. 2 shows, by way of a schematic functional sketch, an embodiment of the fluid cooling apparatus according to the invention
  • FIGS. 3 and 4 show perspective angular views of two embodied examples of air filter devices for a fluid cooling device according to the invention
  • FIG. 5 shows a top view of a filter mat of an air filter device
  • FIGS. 6 and 7 show a partial top view and a perspective partial view, respectively, of two embodied examples of a filter mat for an air filter device.
  • FIGS. 8 and 9 show simplified functional sketches, similar to FIG. 2 , of two further embodiments of the fluid cooling apparatus according to the invention.
  • FIG. 1 shows a fluid cooling apparatus according to the prior art, in which an air-flow device is designated as a whole by the reference numeral 1 , that generates a cooling air stream during operation by means of a heat exchanger device 3 , which is constituted of a plate-shaped cellular radiator able to accommodate the fluid that must be cooled down by means of a filter device 5 , and which is mounted on the heat exchanger device 3 and through which the flow is routed.
  • the fan housing 7 of the air-flow device 1 is mounted directly on the heat exchanger device 3 .
  • the housing 7 forms a flow channel 9 that has the fan wheel 11 disposed therein, which, in turn, is powered by a drive device 13 .
  • a protective grate 15 is disposed on the fan housing 7 as an external enclosure through which the cooling air stream exits to the outside.
  • FIG. 2 illustrates, by way of a simple functional sketch, an embodiment according to the invention, wherein the direction of the cooling air stream in FIG. 2 is indicated by the flow arrow 17 as going from left to right.
  • a plate-shaped cellular radiator which constitutes a cooling unit of the heat exchanger device 3 , is disposed upstream of the inlet area 19 and functions as an air filter arrangement 21 . Examples for the design of this air filter arrangement 21 will be explained in further detail based on FIGS. 3 to 7 .
  • the air filter arrangement 21 When accretion occurs during operation, due to ambient air that is loaded with contaminants, and contaminating particles are deposited on the filter material 23 of the air filter arrangement 21 causing a corresponding reduction of the flow rate of the cooling air stream in the flow channel 9 , the air filter arrangement 21 must be regenerated in that the air filter arrangement 21 is replaced entirely and as a single unit, or in that only the filter material 23 , which is located upstream of the inlet area 19 is replaced.
  • the device as shown in FIG. 2 includes a signaling device 25 that alerts the operator of a state requiring intervention regarding the air filter apparatus 21 .
  • the signaling device 25 includes a flow sensor 27 that detects a drop of the flow rate in the flow channel 9 in the manner of an anemometer. Moreover, a speed sensor 29 is provided that detects if the fan wheel 11 operates at a normal speed. It is thereby ensured that the signaling device 25 only alerts the operator to the presence of a clogged filter, when the flow sensor 27 detects a decrease in the flow rate, provided that the speed sensor 29 confirms the operation of the fan wheel 11 at a normal speed, meaning that the drive unit 13 is not switched off.
  • FIGS. 3 and 4 show examples of the air filter arrangement 21 with a frame 31 , forming the enclosure for the filter material 23 , which is a mat or a web, that can be mounted on the air inlet area 19 of the heat exchanger device 3 .
  • This apparatus can selected thereby in such a manner that the frame 31 can be replaced together with the filter material 23 , if necessary; or the frame 21 is configured such that it can be opened in order to replace worn filter material 23 inside the frame 31 , wherein the frame 31 itself can remain, in this case, mounted on the air inlet area 19 .
  • the frame 31 includes a coarse grate of bars 33 that connect the sides of the frame to each other, with node points 35 where the bars intersect. The grate is thus formed by the bars 33 and therefore constitutes a support structure on the outside of the filter material 23 , wherein it is possible to provide said bars 33 on both outer surfaces of the filter material 23 inside the frame 31 .
  • the filter material 23 can be a mat-type, nonwoven filter, for example nonwoven polyester.
  • a nonwoven paper material, glass-fiber mat, or melt-blow nonwoven fabric are also conceivable as structural fabrics, such as a polyester fabric, metal wire or plastic mesh, or plastic grates having a net-type structure.
  • FIG. 5 demonstrates a filter material that is a glass fiber mat 37 .
  • FIG. 6 shows an undulated nonwoven paper fabric 39
  • FIG. 7 shows a nonwoven paper fabric 41 in a corrugated, folded form.
  • the embodiment in FIG. 8 differs from the example described above in that the air filter arrangement 21 is constituted of a continuous belt filter device 43 .
  • Automatic roll filters of this kind are known in the art, for example from OE 2 160 980, which is why a discussion of the mechanical details describing an automatic roll filter is presently not necessary.
  • a filter belt 45 of a width corresponding to the dimensions of the air inlet area 19 is routed upstream of the same from a storage roll 47 to a take-up roll 49 , wherein a respectively worn (dirty) belt section is replaced with a fresh section of the filter belt 45 .
  • the filter belt 45 is transported in response to a corresponding signal display by the signaling device 25 as shown in FIG. 2 , whereby maintenance is completely automated.
  • the embodiment in FIG. 9 differs insofar as the belt filter apparatus 43 operates as a self-cleaning device.
  • the filter belt 45 is returned as a continuous loop upstream of the air inlet area 19 as well as downstream of the heat exchanger device 3 through the inside flow channel 9 of the housing 7 .
  • the air flow as indicated by arrows 17
  • deposits dust particles 51 during operation on the outside of the filter belt 45 the accretions are located, after the filter belt 45 has been correspondingly transported, on the section of the filter belt 45 that extends inside the flow channel 9 on the side that is directed toward the fan wheel 11 , as shown by way of a schematic in FIG. 9 .
  • the accretions are therefore located on the side of the filter belt 45 from which dirt is blown off by the cooling air stream inside the flow channel 9 , such that the contamination is able to exit to the outside, as indicated by the angular arrow 53 .
  • the filter belt 45 only needs to be replaced after a certain number of cleaning cycles, meaning belt rotations, such that, owing to the less frequent replacement of filter material, the operating costs are lowered.
  • the transportation of the belt in the embodiment in FIG. 9 can in this instance also be controlled by the signaling device 25 as demonstrated in FIG. 2 , meaning automatically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US13/261,669 2010-12-09 2011-10-19 Fluid cooling apparatus Abandoned US20130306264A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010053923A DE102010053923A1 (de) 2010-12-09 2010-12-09 Fluidkühlvorrichtung
DE102010053923.6 2010-12-09
PCT/EP2011/005250 WO2012076079A1 (de) 2010-12-09 2011-10-19 Fluidkühlvorrichtung

Publications (1)

Publication Number Publication Date
US20130306264A1 true US20130306264A1 (en) 2013-11-21

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ID=44860298

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/261,669 Abandoned US20130306264A1 (en) 2010-12-09 2011-10-19 Fluid cooling apparatus

Country Status (4)

Country Link
US (1) US20130306264A1 (de)
EP (1) EP2649399A1 (de)
DE (1) DE102010053923A1 (de)
WO (1) WO2012076079A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065345A (zh) * 2015-07-20 2015-11-18 江阴荣兴科技发展有限公司 一体式水陆两栖船用油箱结构
US20210121811A1 (en) * 2019-10-28 2021-04-29 Lg Electronics Inc. Air cleaner for oil and other contaminants
US11161621B2 (en) * 2018-01-18 2021-11-02 Raytheon Technologies Corporation Heat exchanger with moving ice filter
CN115559964A (zh) * 2022-12-05 2023-01-03 江苏格耀机械科技有限公司 一种液压站内液压油冷却装置以及冷却方法
CN116034236A (zh) * 2020-08-07 2023-04-28 大金工业株式会社 风机单元及包括该风机单元的空气处理系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109078392A (zh) * 2018-08-31 2018-12-25 北京京创鑫业科技有限公司 一种拍打式震动过滤网辅以反吹的除尘方式
CN110645233B (zh) * 2019-09-26 2021-10-01 台州市晶钻智能科技有限公司 一种便于移动的散热效果好的液压站

Citations (10)

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US2848064A (en) * 1957-03-29 1958-08-19 Continental Air Filters Inc Air and gas filter having automatically controlled movement of filter curtain
US2853155A (en) * 1955-04-01 1958-09-23 American Air Filter Co Filter apparatus control
US3552098A (en) * 1968-07-12 1971-01-05 American Air Filter Co Air filter control arrangement
US4221576A (en) * 1979-01-19 1980-09-09 James M. Perrier, Sr. Automatic air filter changer
US4492151A (en) * 1982-03-05 1985-01-08 Michele Mattei Eliane Air pressurizers/conditioners especially for work cabs in a polluted atmosphere
US6168646B1 (en) * 1999-04-02 2001-01-02 Nortel Networks Limited Flow rate control of temperature control fluids
US20060102006A1 (en) * 2004-11-12 2006-05-18 Powell Henry J HVAC automatic air filter
US20080041025A1 (en) * 2006-08-17 2008-02-21 Boyer Eugene C HVAC system with moving filter
US20090165644A1 (en) * 2007-12-31 2009-07-02 Campbell David F Air Filter Apparatus with Self-Contained Detachable Programmable Clogging Indicator
US20090242469A1 (en) * 2008-04-01 2009-10-01 Gerry Calabrese Filter Assembly for Cleaning Fluids by Way of an Indexing Cloth Filter

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US3344854A (en) * 1965-07-20 1967-10-03 Allis Chalmers Mfg Co Anticlog device for engine radiators
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DE10358472B4 (de) * 2003-12-08 2011-02-10 Maico Elektroapparate-Fabrik Gmbh Lüftungsvorrichtung zum Anschluss einer Abluftleitung sowie Zentrallüftungsvorrichtung
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Publication number Priority date Publication date Assignee Title
US2853155A (en) * 1955-04-01 1958-09-23 American Air Filter Co Filter apparatus control
US2848064A (en) * 1957-03-29 1958-08-19 Continental Air Filters Inc Air and gas filter having automatically controlled movement of filter curtain
US3552098A (en) * 1968-07-12 1971-01-05 American Air Filter Co Air filter control arrangement
US4221576A (en) * 1979-01-19 1980-09-09 James M. Perrier, Sr. Automatic air filter changer
US4492151A (en) * 1982-03-05 1985-01-08 Michele Mattei Eliane Air pressurizers/conditioners especially for work cabs in a polluted atmosphere
US6168646B1 (en) * 1999-04-02 2001-01-02 Nortel Networks Limited Flow rate control of temperature control fluids
US20060102006A1 (en) * 2004-11-12 2006-05-18 Powell Henry J HVAC automatic air filter
US20080041025A1 (en) * 2006-08-17 2008-02-21 Boyer Eugene C HVAC system with moving filter
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US20090242469A1 (en) * 2008-04-01 2009-10-01 Gerry Calabrese Filter Assembly for Cleaning Fluids by Way of an Indexing Cloth Filter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105065345A (zh) * 2015-07-20 2015-11-18 江阴荣兴科技发展有限公司 一体式水陆两栖船用油箱结构
US11161621B2 (en) * 2018-01-18 2021-11-02 Raytheon Technologies Corporation Heat exchanger with moving ice filter
US20210121811A1 (en) * 2019-10-28 2021-04-29 Lg Electronics Inc. Air cleaner for oil and other contaminants
US11772027B2 (en) 2019-10-28 2023-10-03 Lg Electronics Inc. Air cleaner with user interface
US11826686B2 (en) 2019-10-28 2023-11-28 Lg Electronics Inc. Portable air cleaner for kitchen
US11865485B2 (en) 2019-10-28 2024-01-09 Lg Electronics Inc. Air cleaner with rollable filter
CN116034236A (zh) * 2020-08-07 2023-04-28 大金工业株式会社 风机单元及包括该风机单元的空气处理系统
US20230204245A1 (en) * 2020-08-07 2023-06-29 Daikin Industries, Ltd. Fan unit and air treatment system including the same
US11971188B2 (en) * 2020-08-07 2024-04-30 Daikin Industries, Ltd. Fan unit and air treatment system including the same
CN115559964A (zh) * 2022-12-05 2023-01-03 江苏格耀机械科技有限公司 一种液压站内液压油冷却装置以及冷却方法

Also Published As

Publication number Publication date
DE102010053923A1 (de) 2012-06-14
WO2012076079A1 (de) 2012-06-14
EP2649399A1 (de) 2013-10-16

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Date Code Title Description
AS Assignment

Owner name: HYDAC AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ZEOLLA, GUISEPPE;RINI, DAVIDE;REEL/FRAME:030983/0200

Effective date: 20130712

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION