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US20140073235A1 - Free Cooling System Apparatus and Communication Equipment - Google Patents

Free Cooling System Apparatus and Communication Equipment Download PDF

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Publication number
US20140073235A1
US20140073235A1 US14/086,040 US201314086040A US2014073235A1 US 20140073235 A1 US20140073235 A1 US 20140073235A1 US 201314086040 A US201314086040 A US 201314086040A US 2014073235 A1 US2014073235 A1 US 2014073235A1
Authority
US
United States
Prior art keywords
air intake
communication equipment
grass
fibers
duct
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
US14/086,040
Other languages
English (en)
Inventor
Tao Wang
Taqing Feng
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Assigned to HUAWEI TECHNOLOGIES CO., LTD. reassignment HUAWEI TECHNOLOGIES CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FENG, TAQING, WANG, TAO
Publication of US20140073235A1 publication Critical patent/US20140073235A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/28—Particle separators, e.g. dust precipitators, using filter brushes
    • 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
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20181—Filters; Louvers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F24F2011/0006—Control or safety arrangements for ventilation using low temperature external supply air to assist cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/175—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using biological materials, plants or microorganisms
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/54—Free-cooling systems

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a free cooling system apparatus and a communication equipment.
  • Heat of a communication equipment deteriorates equipment performance or even damages the equipment.
  • To make the communication equipment work normally it is necessary to solve the problem of heat dissipation of the communication equipment and ensure that an ambient temperature in which the communication equipment stays is within an allowed range.
  • air conditioning air conditioning
  • heat exchanger heat exchanger
  • free cooling outdoor fresh air is used to dissipate heat of the communication equipment directly, which makes the equipment work in a good environment and has a significant energy saving effect; in addition, a free cooling system apparatus has a small size, meets a trend of product downsizing, and is highly reliable and maintainable.
  • an ordinary free cooling system apparatus mainly includes a filter screen 501 , a fan 502 , a labyrinth air duct 503 , and a control panel 504 .
  • a filter screen 501 As driven by the fan, an airflow is filtered by the filter screen, enters the communication equipment through the labyrinth air duct, and finally flows out of an air exhaust to expel heat.
  • the control panel may be configured to control a rotation speed of the fan and report a fault.
  • the ordinary free cooling system apparatus has a low filtering efficiency, which is generally lower than 50%, and a short maintenance cycle, which is generally 3 to 6 months. Therefore, the reliability of the communication equipment is reduced, and frequent maintenance makes the maintenance cost high.
  • an air-ventilated film is used to replace the filter screen in the prior art.
  • the air-ventilated film brings a high filtering efficiency, but the resistance of the air-ventilated film increases along with the increase of wind force, causing a significant air resistance effect.
  • the air-ventilated film may be clogged with dust and need maintenance before long, which leads to a very short maintenance cycle.
  • the foregoing existing free cooling system apparatus has a short maintenance cycle, needs frequent maintenance, and has a high maintenance cost.
  • Embodiments of the present invention provide a free cooling system apparatus and a communication equipment.
  • a free cooling system apparatus applied to a communication equipment, includes: an air intake apparatus that is disposed at an air intake of the communication equipment, where the air intake apparatus includes an air intake duct that is disposed along a direction of gravity or at an acute angle against the direction of gravity, where the air intake duct has an opening below the air intake of the communication equipment to allow an airflow to enter the air intake duct through the opening, and a filtering module is disposed inside the air intake duct; and the filtering module includes a substrate and grass-like fibers, where the substrate is attached to a sidewall of the air intake duct, roots of the grass-like fibers are fixed onto the substrate, and tips of the grass-like fibers are suspended inside the air intake duct of the air intake apparatus and are transversely placed in the air intake duct along a direction of a cross section of the air intake duct.
  • a communication equipment includes: an enclosure, an equipment body disposed inside the enclosure, and the free cooling system apparatus described above disposed outside the enclosure, where the enclosure has an air intake and an air exhaust, and an air intake apparatus of the free cooling system apparatus is disposed at the air intake.
  • an air intake duct is disposed along a direction of gravity approximately, an opening used to allow entry of an airflow is below an air intake of a communication equipment, grass-like fibers disposed in a filtering module in the air intake duct are suspended in the air intake duct and transversely placed in the air intake duct along a direction of a cross section, and can swing freely as actuated by an incoming airflow. In this way, when an airflow enters the air intake duct from bottom to top, dust and impurities in the airflow are obstructed and filtered by the grass-like fibers layer by layer.
  • the free cooling system apparatus provided in the embodiments of the present invention has an automatic dust suppression function, and can be maintenance-free or prolong the maintenance cycle, thereby reducing the maintenance cost.
  • FIG. 1 is a schematic structural diagram of a free cooling system apparatus in the prior art
  • FIG. 2 is a schematic diagram of a free cooling system apparatus according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a filtering module according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a free cooling system apparatus according to another embodiment of the present invention.
  • Embodiments of the present invention provide a free cooling system apparatus.
  • the apparatus has an automatic dust suppression function, and can be maintenance-free or prolong the maintenance cycle, thereby reducing the maintenance cost.
  • the embodiments of the present invention further provide a communication equipment that uses the free cooling system apparatus. Detailed descriptions are provided below.
  • an embodiment of the present invention provides a free cooling system apparatus, which is installed on a communication equipment 100 for dissipating heat of the communication equipment 100 .
  • the communication equipment 100 has at least one air intake 111 and at least one air exhaust 112 .
  • the free cooling system apparatus provided in this embodiment includes at least one air intake apparatus 200 that is disposed at an air intake 111 of the communication equipment 100 .
  • An outside natural wind (or called an airflow) passes through the air intake apparatus 200 with dust being filtered out, enters the communication equipment 100 from the air intake 111 , and then carries interior heat of the communication equipment 100 and flows out of the air exhaust 112 , to achieve a heat dissipation function.
  • For the flow direction of the airflow refer to directions indicated by arrows in the accompanying drawing.
  • the air intake apparatus 200 includes an air intake duct 210 that is disposed along a direction of gravity or at an acute angle against the direction of gravity, where the air intake duct 210 has an opening 211 below the air intake 111 of the communication equipment 100 to allow an airflow to enter the air intake duct 210 through the opening 211 , and a filtering module 220 is disposed inside the air intake duct 210 . Because the opening 211 is located below the air intake 211 , an outside airflow enters the opening 211 and flows from bottom to top along the air intake duct 210 , and is filtered by the filtering module 220 and then arrives at the air intake 111 of the communication equipment 100 .
  • the air intake duct 210 may be disposed vertically along the direction of gravity, that is, perpendicular to the horizon; and may also be disposed at an acute angle against the direction of gravity, which is preferably an angle of less than 30 degrees.
  • the filtering module 220 includes a substrate 221 and grass-like fibers 222 , where the substrate 221 is attached to a sidewall of the air intake duct 210 , roots of the grass-like fibers 222 are fixed onto the substrate 221 , and tips of the grass-like fibers 222 are suspended inside the air intake duct 210 of the air intake apparatus 200 and are transversely placed in the air intake duct 210 along a direction of a cross section of the air intake duct 210 .
  • the filtering module 220 is similar to a fabricated lawn, and it may be deemed that a fabricated lawn is affixed to the sidewall of the air intake duct 210 , where the tips of the grass-like fibers 222 reach an opposite sidewall to completely cover the entire cross section of the air intake duct 210 .
  • the principle of the filtering apparatus in this embodiment is similar to aquatic grasses filtering river water.
  • Multiple clusters of grass-like fibers 222 arranged evenly or unevenly are fixed onto the substrate 221 .
  • dust and impurities carried in the airflow are obstructed and filtered out by the grass-like fibers 222 which swing with the wind.
  • the free cooling system apparatus in this embodiment has an automatic dust suppression function, and is not only free from clogging with dust but also does not need periodical manual maintenance for dust removal, and can be maintenance-free or prolong the maintenance cycle, thereby reducing the maintenance cost.
  • the filtering apparatus mainly formed of grass-like fibers provided in the embodiment of the present invention is a stereoscopic structure, and provides a certain filtering depth from bottom to top, which may be regarded as stereoscopic filtering.
  • a filter screen or an air-ventilated film in the prior art is constructed of only one layer, and may be called planar filtering.
  • the stereoscopic filtering in this embodiment has higher filtering efficiency than that of the planar filtering, and is free from clogging with dust.
  • the filtering apparatus provided in the embodiment of the present invention is of a structure with a sound absorption effect, and can reduce noise.
  • the substrate 221 may be made of various materials such as a mesh cloth or woven cloth or composite fiber cloth, where multiple woven holes are distributed evenly or unevenly on the substrate.
  • Several grass-like fibers 222 gather into one cluster, and each cluster of grass-like fibers 222 is fixed in one woven hole. Roots of a cluster of grass-like fibers 222 may be fixed into one woven hole with glue.
  • the grass-like fibers 222 may be grass leaf-like fibers made of various materials such as fibers of polypropylene, polyvinyl chloride or polyamide.
  • the length of the grass-like fibers 222 is preferably not smaller than the width of the air intake duct 210 , so that when the roots of the grass-like fibers 222 are fixed to a sidewall of the air intake duct 210 through the substrate 221 , the tips of the grass-like fibers 222 can reach the opposite sidewall to obstruct the entire air intake duct.
  • the filtering module 220 features a large dust-tolerant rate and a low resistance coefficient.
  • the filtering module 220 may include only one substrate 221 onto which multiple clusters of grass-like fibers 222 are fixed, where the substrate 221 is fixed to only one sidewall of the air intake duct 210 ; or may include multiple substrates 221 onto which multiple clusters of grass-like fibers 222 are fixed, where the substrates 221 are fixed to multiple sidewalls of the air intake duct 210 separately, so as to better obstruct the air intake duct 220 and improve the filtering efficiency.
  • the materials of the substrate 221 and the grass-like fibers 222 in the filtering module 220 are not limited, and the sizes of the substrate 221 and the grass-like fibers 222 are not limited, as long as the sizes fit the air intake duct 220 .
  • the substrate 221 may be in a rectangle with a length being about 400 millimeters (mm) and a width being about 450 mm; the grass-like fibers 222 may be in a column shape or a bar shape or other shapes with a length being not less than 10 mm and a diameter being not less than 1 mm.
  • the length of the grass-like fibers 222 may be 50 mm; in this case, the thickness of the filtering module 220 is slightly greater than 50 mm.
  • dustproof treatment also known as dust-resistance treatment
  • a layer of nanometer materials may be disposed on surfaces of the grass-like fibers 222 , or the grass-like fibers 222 are entirely made of nanometer materials, so as to achieve a better dust-resistance effect.
  • the air intake apparatus 200 further includes a connection duct 230 ; one end of the connection duct 230 is connected to the air intake duct 210 , and the other end is connected to the air intake 111 of the communication equipment 100 ; an intake fan 240 is disposed in the connection duct 230 . Under the effect of the intake fan 240 , outside air may pass through the air intake duct 210 and the connection duct 230 successively, and flows into the communication equipment 100 .
  • the connection duct 230 may be a straight duct, or may be a bent duct. By using the connection duct 230 , the air intake apparatus 200 may have a noise reduction effect.
  • the free cooling system apparatus may further include one air exhaust apparatus 300 .
  • the air exhaust apparatus 300 includes an air exhaust duct 310 connected to an air exhaust 112 of the communication equipment 100 , and an exhaust fan 320 disposed inside the air exhaust duct 310 . Under the effect of the exhaust fan 320 , air inside the communication equipment 100 may be expelled more quickly, thereby carrying away the interior heat of the communication equipment 100 more quickly.
  • the intake fan 240 and the exhaust fan 320 may be powered by an external power supply, or may be powered by using a power supply inside the communication equipment 100 .
  • a control panel 400 including control buttons of the intake fan 240 and the exhaust fan 320 may be fixed inside or outside the communication equipment, for operation by management and maintenance personnel.
  • locations for assembling the air intake apparatus 200 and the air exhaust apparatus 300 on the communication equipment depend on locations of the air intake 111 and the air exhaust 112 , and the air intake apparatus 200 and the air exhaust apparatus 300 may be disposed on the same side of the communication equipment, and may also be disposed on opposite sides, or disposed in other manners.
  • the air exhaust apparatus 300 may be disposed inside the communication equipment 100 , and may also be disposed outside the communication equipment 100 .
  • the free cooling system apparatus uses a filtering module which is mainly formed of grass-like fibers and features a large dust-tolerant rate and a low resistance coefficient, and with an air intake duct that is disposed along a direction of gravity and has an opening at a lower end, the free cooling system apparatus has a very high filtering efficiency, and brings an effect of automatic dust suppression, which can be maintenance-free or prolong the maintenance cycle, thereby reducing the maintenance cost. If dustproof treatment is performed on the grass-like fibers, the effect of automatic dust suppression will be better.
  • an embodiment of the present invention further provides a communication equipment 100 , including: an enclosure 110 , an equipment body 120 disposed inside the enclosure, and the free cooling system apparatus described in the preceding embodiment disposed outside the enclosure 110 , where the enclosure has an air intake 111 and an air exhaust 112 , and an air intake apparatus 200 of the free cooling system apparatus is disposed at the air intake 111 .
  • the communication equipment 100 may be a communication cabinet.
  • the free cooling system apparatus may be separated from the communication cabinet, and connected to an enclosure of the communication cabinet in a manner of screw connection or the like.
  • the free cooling system apparatus and the enclosure of the communication cabinet may also form an integrated structure.
  • the communication equipment may be a communication equipment of another type such as an outdoor cabinet, an outdoor equipment room, or an outdoor mini-shelter.
  • the free cooling system apparatus in the embodiment of the present invention is applicable to not only the communication equipment, but also any equipment that needs heat dissipation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
US14/086,040 2011-05-26 2013-11-21 Free Cooling System Apparatus and Communication Equipment Abandoned US20140073235A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/074701 WO2011144091A2 (zh) 2011-05-26 2011-05-26 直通风散热装置及通信设备

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/074701 Continuation WO2011144091A2 (zh) 2011-05-26 2011-05-26 直通风散热装置及通信设备

Publications (1)

Publication Number Publication Date
US20140073235A1 true US20140073235A1 (en) 2014-03-13

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US14/086,040 Abandoned US20140073235A1 (en) 2011-05-26 2013-11-21 Free Cooling System Apparatus and Communication Equipment

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US (1) US20140073235A1 (zh)
EP (1) EP2717662A4 (zh)
CN (1) CN102204426B (zh)
WO (1) WO2011144091A2 (zh)

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US20140277821A1 (en) * 2011-07-15 2014-09-18 Microsoft Corporation Indirect Thermal Fan Control
US20150230364A1 (en) * 2014-02-07 2015-08-13 Wells Fargo Bank, N.A. Data Center Cooling Device
CN104866048A (zh) * 2015-06-09 2015-08-26 苏州云远网络技术有限公司 一种电脑除尘暖手装置
CN114353193A (zh) * 2022-01-14 2022-04-15 王海超 一种空调的减震结构及包含其的空调

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CN102519287A (zh) * 2011-12-31 2012-06-27 华为技术有限公司 热交换器
CN104519707B (zh) * 2013-09-28 2017-01-04 沈阳新松机器人自动化股份有限公司 一种机柜除尘散热系统
CN103982950A (zh) * 2014-06-07 2014-08-13 苏州碧江环保工程有限公司 一种空气净化器
CN106051958B (zh) * 2016-07-12 2022-05-17 广东申菱环境系统股份有限公司 一种地铁站蒸发冷凝直膨蒸发型空调系统及其控制方法
CN107949202A (zh) * 2017-10-30 2018-04-20 深圳市科华恒盛科技有限公司 一种电子设备箱
CN107979267A (zh) * 2017-12-29 2018-05-01 石狮市酷瑞电气有限责任公司 一种具有防尘和防水双重功能的变频器
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CN102204426A (zh) 2011-09-28
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EP2717662A4 (en) 2014-06-18
WO2011144091A3 (zh) 2012-04-19
CN102204426B (zh) 2013-04-24

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