EP3529539A1 - Air management system - Google Patents
Air management systemInfo
- Publication number
- EP3529539A1 EP3529539A1 EP16809519.8A EP16809519A EP3529539A1 EP 3529539 A1 EP3529539 A1 EP 3529539A1 EP 16809519 A EP16809519 A EP 16809519A EP 3529539 A1 EP3529539 A1 EP 3529539A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- management system
- air management
- fan
- blades
- blade
- 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
Links
- 230000001960 triggered effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000007726 management method Methods 0.000 description 35
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
- F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
- F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction
-
- 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
- F24F13/142—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre using pivoting blades with intersecting axles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/40—Damper positions, e.g. open or closed
Definitions
- the invention relates to an air management system.
- each module is composed of one or more heat exchangers, one or more motor and fan devices and a supporting structure.
- the heat exchangers are usually positioned in a V-shape with the fan and the motor covering the heat exchangers.
- Such a configuration may result in debris and outside particulates entering through the fan holes when the fan is not running. Debris accumulated in the bottom of the air management system may get in contact with the heat exchangers, and the debris in combination with water may negatively impact the overall performance and may cause corrosion and leaks.
- Some air management systems are equipped with a grill located above the fan to prevent human intrusion towards the fan. Such grills, however, do not prevent small objects from falling or otherwise entering into the air management systems.
- the aim of the invention is to provide a new air management system whose liability and lifetime is improved.
- the invention concerns an air management system comprising at least one heat exchanger, at least one fan, and a supporting structure carrying said at least one exchanger and fan, wherein the air management system further comprises a check valve located above the fan, the check valve being formed by blades which are movable between a closed position, in which the fan is covered, and an open position, in which the fan is uncovered.
- such an air management system may include one or several of the following features:
- each blade partially covers an adjacent blade.
- the blades are made from sheet metal.
- the blades are made from a plastic material.
- the blades form, in closed position, a circular cover corresponding to the shape of an opening of the structure in which the fan is positioned.
- Each blade is formed by an angular sector of disc.
- the blades are parallel to a central rotation axis of the fan in their open position.
- Each blade is movable in rotation around a longitudinal axis extending in a radial plane with respect to the rotation axis of the fan.
- Each blade is movable in rotation around a longitudinal axis perpendicular to the central rotation axis of the fan.
- Each blade is movable in rotation around an axis tangent to an outer circular edge of each blade.
- the blades form a truncated cone in closed position.
- the check valve does not increase the overall dimension of the air management system by more than 0 to 5 percent of the overall height of the air management system.
- the blades In their closed position, the blades do not protrude from a top edge of an opening of the supporting structure in which the fan is positioned.
- FIG. 1 is a perspective view of an air management system according to the invention, in a non-operating configuration of fans of the system;
- figure 2 is a view similar to figure 2, of an operating configuration of the fans;
- FIG. 3 is an enlarged view of a portion of an air management system according to a second embodiment of the invention, showing an operating configuration of a fan.
- Figures 1 and 2 represent an air management system 2 which includes at least one heat exchanger.
- the air management system 2 comprises two heat exchangers 4 and 6 arranged in a V shape.
- the air management system 2 also comprises at least one fan, in the present case two fans 8 and 10 each powered by a non-shown motor.
- the air management system 2 also comprises a supporting structure 16 which carries the exchangers 4 and 6, the fans 8 and 10 and their dedicated motors. Each fan 8 and 10 is located in a cylindrical opening 160 of the supporting structure 16.
- the management system 2 further comprises, for each fan 8 and 10, a check valve 18 located above the fans 8 and 10.
- the check valve 18 is positioned along a vertical direction X which also forms a central rotation axis of the fans 8 and 10 and a central axis of the openings 160.
- the check valves 18 are formed by multiple blades 180 which are movable between a closed position, shown in figure 1 , in which the fans 8 and 10 are covered, and an opened position, shown in figure 2, in which the fans 8 and 10 are uncovered. In their closed position, the blades 180 form an obstacle preventing debris and other objects from entering the interior of the air management system 2.
- the blades 180 form, in closed position, a circular cover corresponding to the shape of the circular openings 160 of the structure 16, in which the fans 8 and 10 are mounted.
- Each blade 180 may be formed by an angular sector of disc.
- the movement of the blades 180 from their closed position to their opened position is triggered by the starting of the fans 8 and 10, and the movement of the blades 180 from their opened position to their closed position is triggered by the switching-off of the fans 8 and 10.
- the air pressure generated by the air flow of the fans 8 and 10 opens the check valves 18 and maintains the blades 180 in their open position.
- the blades 180 may be parallel to the central rotation axis
- each blade 180 is rotatable around a central longitudinal rotation axis Y180 which extends in a radial plane with respect to the rotation axis X of the fans 8 and 10.
- the blades 180 may comprise non-shown inner and outer rotation pins respectively mounted free to rotate in central parts 80 and 100 of the fans 8 and 10, and in the cylindrical wall of the openings 160.
- the blades 180 may be rotatable around a longitudinal axis running along one lateral radius.
- the blades 180 may form together a truncated cone in closed position.
- the central longitudinal rotation axes Y180 form a non-right angle with the central rotation axis X of the fans 8 and 10.
- the blades 180 may be perpendicular to the rotation axis X in closed position.
- the blades 180 may have longitudinal rotation axes Y180 perpendicular to the rotation axis X of the fans 8 and 10.
- each blade 180 is movable in rotation around an axis Z180 which is tangent to an outer circular edge 180a of each blade 180.
- the blades 180 may comprise a rotation shaft mounted in the openings 160.
- the check valve 18 comprises a grill 182 formed by diametric rods linking the central part 80 and the opening 160. Such diametric rods may be arranged so as to be overlapped by the lateral edges 184 and 185 of the blades 180 in their closed position in order to provide a rest to the blades 180.
- the check valves 18 decrease the risk of corrosion in the air management system 2, especially in the heat exchangers 4 and 6.
- the check valves 18 also decrease the need for service operation, notably cleaning, of the heat exchangers.
- the closed check valve 18 does not increase the overall vertical dimension of the air management system 2 with respect to a state-of-the-art air management system equipped with a grill.
- the check valve 18 in closed configuration may not increase the overall dimension of the air management system 2 by more than 0 to 5 percent of the overall height H of the air management system 2. This allows easy transportation of the air management systems from a manufacturing place to an installation place, for example in truck trailers.
- the check valves 18 also improve the airflow in the case the air management system 2 is integrated in a multiple chiller installation.
- the blades 180 provide a guide for the air flow of the fans 8 and 10. This permits to straighten the airflow and reduce air recirculation between adjacent fans or adjacent air managements systems or chillers.
- the noise level of the air management system 2 is limited, as in their open position, the blades 180 have a smaller projected surface on the section of the fan 8 or 10 than a standard grill.
- the noise level produced by airflow passing through the check valve 18 is therefore lower as the noise level of airflow passing through a grill.
- air re-circulation is also limited when one of the fans 8 and 10 fails.
- each blade 180 may partially cover an adjacent blade 180.
- a first blade 180 may overlap an angular sector covering a portion of another blade 180 located directly next to the first blade 180 in the circumferential direction.
- the blades 180 may be made from sheet metal.
- the blades 180 may be made from a plastic material.
- the air management system 2 may comprise only one heat exchanger, and/or only one motor/fan device.
- the air management may comprise any number of heat exchangers and any number of motor/fan device, and may also be formed by several air management modules each comprising heat exchangers and motor/fan devices.
- the heat exchangers may also be arranged in a different shape.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2016/001693 WO2018073617A1 (en) | 2016-10-21 | 2016-10-21 | Air management system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3529539A1 true EP3529539A1 (en) | 2019-08-28 |
EP3529539B1 EP3529539B1 (en) | 2021-04-14 |
Family
ID=57539564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16809519.8A Active EP3529539B1 (en) | 2016-10-21 | 2016-10-21 | Air management system |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190257315A1 (en) |
EP (1) | EP3529539B1 (en) |
CN (1) | CN109844418A (en) |
ES (1) | ES2868186T3 (en) |
WO (1) | WO2018073617A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180376614A1 (en) * | 2017-06-23 | 2018-12-27 | Fortinet, Inc. | Check valve fan cover |
US11041679B2 (en) | 2019-01-21 | 2021-06-22 | Johnson Controls Technology Company | Energy recovery wheel assembly for an HVAC system |
US11153993B2 (en) * | 2019-04-01 | 2021-10-19 | Dell Products L.P. | Systems and methods for preventing airflow recirculation in an information handling system after an air mover fault |
EP3786560B8 (en) * | 2019-08-30 | 2022-02-23 | Ovh | Heat exchanger assembly |
US11809246B2 (en) | 2020-07-24 | 2023-11-07 | Dell Products L.P. | System and method for service life management based on corrosion rate reduction |
US11665853B2 (en) * | 2020-07-24 | 2023-05-30 | Dell Products L.P. | System and method for service life management based on chassis corrosion rate reduction |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2153604A (en) * | 1937-05-04 | 1939-04-11 | Wheller Harry Stewart | Circulation control means |
GB939954A (en) * | 1960-12-19 | 1963-10-16 | John Spargo | Combined impeller and closure |
US4815530A (en) * | 1987-03-10 | 1989-03-28 | Kool Kap Corp. | Kool kap |
US5158486A (en) * | 1991-03-11 | 1992-10-27 | Tamame Antonio N | Debris and weather protector for air conditional compressor cabinets |
US5645483A (en) * | 1996-08-12 | 1997-07-08 | Stewart Cushman | Smoke reducing power roof ventilator |
CN2437879Y (en) * | 2000-08-11 | 2001-07-04 | 浙江龙胜电器有限公司 | Scavenger fan with air pressure type automatic shutter mechanism |
JP6385752B2 (en) * | 2013-12-02 | 2018-09-05 | 三星電子株式会社Samsung Electronics Co.,Ltd. | Outdoor unit for blower and air conditioner |
TWI561734B (en) * | 2014-03-07 | 2016-12-11 | Wistron Corp | Backflow prevention device and fan |
-
2016
- 2016-10-21 EP EP16809519.8A patent/EP3529539B1/en active Active
- 2016-10-21 ES ES16809519T patent/ES2868186T3/en active Active
- 2016-10-21 WO PCT/IB2016/001693 patent/WO2018073617A1/en unknown
- 2016-10-21 CN CN201680090218.8A patent/CN109844418A/en active Pending
- 2016-10-21 US US16/343,286 patent/US20190257315A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN109844418A (en) | 2019-06-04 |
US20190257315A1 (en) | 2019-08-22 |
EP3529539B1 (en) | 2021-04-14 |
WO2018073617A1 (en) | 2018-04-26 |
ES2868186T3 (en) | 2021-10-21 |
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