US20070180848A1 - Conditioning device of the free cooling type - Google Patents

Conditioning device of the free cooling type Download PDF

Info

Publication number: US20070180848A1
Authority: US; United States
Prior art keywords: air; fan; shutter; ports; open
Prior art date: 2006-02-07
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

US11/657,444

Other languages

English (en)

Inventor

Moreno Lazzarato

Maristella Bregantin

Marco Lazzarato

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.)

Vertiv SRL

Original Assignee

Emerson Network Power SRL

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.)

2006-02-07

Filing date

2007-01-25

Publication date

2007-08-09

2007-01-25 Application filed by Emerson Network Power SRL filed Critical Emerson Network Power SRL

2007-01-25 Assigned to EMERSON NETWORK POWER S.R.L. reassignment EMERSON NETWORK POWER S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LAZZARATO, MORENO (DECEASED), BY HEIRESS: MARISTELLA BREGANTIN (SPOUSE) BY HEIR: MARCO LAZZARATO (SON)

2007-08-09 Publication of US20070180848A1 publication Critical patent/US20070180848A1/en

Status 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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
- F24F1/027—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle mounted in wall openings, e.g. in windows
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- 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
- 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 a conditioning device of the free cooling type.
Air conditioning devices provided with the option known as “free cooling” are currently known in the field of climate control of enclosed spaces ranging from industrial facilities to telephone exchanges to offices to private dwellings and the like.
the free cooling option is based on the ability of the climate control unit to use, for the conditioning of an enclosed space, air which arrives from outside when said air has an enthalpy value which is higher than that of the air of the internal space.
Free cooling allows considerable energy saving on the part of the user as well as a healthier management of the air of the internal space, which is replaced appropriately by activating free cooling.
Known types of free cooling conditioning device are generally installed externally or are wall-mounted with respect to the walls which form the space to be climate-controlled.
the refrigeration circuit In the first conditioning mode, the refrigeration circuit is active, the shutter closes a first port for aspirating air from outside and opens a second port for aspirating air from the enclosed space, forming a first intake channel which connects said second port to the first fan, from which the air reaches the evaporator and from there returns to the space to be climate-controlled.
the second fan also is active and aspirates air from outside in order to send it to the condenser of the refrigeration circuit.
the transition from this first mode to the second free cooling operating mode occurs by tilting the shutter, which is arranged in a second configuration which is adapted to close the first intake channel between the second port, which is open onto the inside environment, and the first fan, and to open a second channel between a third port, which is open onto the outside, and the first fan, and a third channel between the second port and a fourth port, which also is open onto the outside.
the second fan In this second operating mode, the second fan is off, the refrigeration circuit is inactive, warm air flows from the internal environment outward through the third channel, and the fan aspirates cool air from the outside in order to introduce it into the environment by means of the second channel.
the aim of the present invention is to provide a conditioning device of the free cooling type which is capable of obviating the drawbacks revealed by known types.
Another object of the present invention is to provide a conditioning device which is not less compact than known types of device.
Another object of the present invention is to provide a conditioning device of the free cooling type which can be manufactured cheaply with known systems and technologies.
a conditioning device of the free cooling type which comprises, inside a box-like containment body:
said device being characterized in that it has a first shutter, upstream of the first fan, for selecting the stream of air aspirated by the first fan, either ambient air, for a first direct-cooling conditioning mode, or external air for a second free cooling conditioning mode, and a second shutter, which is adapted to redirect the stream of air in output from the enclosed space either toward said second fan, when the device operates in the second free cooling mode, or toward said first shutter, which is at least partly open toward the first fan, for the aspiration on the part of said first fan at least partly of ambient air, in the first cooling mode with ambient air recirculation.
FIG. 1 is a schematic sectional side view of a device according to the invention in a first configuration for a first operating mode
FIG. 2 is a schematic sectional side view of a device according to the invention in a second configuration for a second operating mode
FIG. 3 is a schematic sectional side view of a device according to the invention in the same configuration as in FIG. 2 , for a third operating mode;
FIG. 4 is a perspective view of the device according to the invention in the configuration of FIG. 3 ;
FIG. 5 is a schematic perspective view of a detail of a device according to the invention.
a conditioning device of the free cooling type according to the invention is generally designated by the reference numeral 10 .
the conditioning device 10 comprises, within a box-like containment body 11 :
the first shutter 15 is of the type with baskets, shown schematically in FIG. 5 and constituted by a first basket 21 and by at least one complementarily shaped second basket 22 inserted within it.
the first basket 21 opens onto the first fan 12 and is provided with first front ports 21 a on its bottom and second lateral ports 21 b on its lateral surface.
the second basket 22 which is internal and is a single one in the embodiment of the invention described here, forms the flow control means of the first shutter 15 , by being connected to rotation means for rotation with respect to the first basket 21 and by being contoured so that portions of its bottom and its lateral surface alternately block the first front ports 21 a and the second lateral ports 21 b ; the second basket 22 can be actuated so as to provide selectively one of the following three configurations:
the first configuration allows the operation of the device 10 in the first mode for cooling with ambient air recirculation and active refrigeration circuit.
the second configuration is designed for the operation of the device 10 in the second free cooling mode, by connecting the outside to the first fan 12 .
the second shutter 20 is provided by a louver 23 , which is arranged so as to open/close a corresponding opening 24 which is formed on a redirection wall 25 which is arranged in front of a first port 26 for the outflow of air from the enclosed space 13 .
the redirection wall 25 is inclined so that when the opening 24 is closed the air is redirected toward the first shutter 15 and the first fan 12 , as shown by way of example in FIG. 1 .
the louver 23 If the louver 23 is open, the internal air can pass through the opening 24 and flow out through the second fan 18 .
the louver 23 is actuated by electromechanical movement means, not shown for the sake of simplicity, which are actuated by an electronic control unit, which also manages the first shutter 15 and the two fans 12 and 18 .
the device 10 according to the invention is therefore capable of operating in three modes.
This third mode therefore allows to obviate the drawback of known types of device, since thanks to the opening 24 which connects the first port 26 (for the outflow of the air from the enclosed space 13 ) to the second fan 18 , it is able to increase the efficiency and effectiveness of the free cooling operating mode, simply by activating the second fan 18 with the refrigeration circuit off.
the second fan 18 is adapted to aspirate air from the enclosed space 13 , accelerating its replacement.
the device 10 which differently from known types of device has the port for the outflow of air from the enclosed space, i.e., the first port 26 , connected by means of the second shutter 20 to the air passage chamber to which both the condenser 17 and the second fan 18 lead.
the present invention provides a conditioning device which is capable of increasing the efficiency and effectiveness of the free cooling operating mode with respect to known devices.
the present invention provides a conditioning device which is not less compact than known types of device.
the present invention provides a conditioning device of the free cooling type which can be manufactured cheaply with known systems and technologies.
the materials employed may be any according to requirements and to the state of the art.

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Air Conditioning Control Device (AREA)
Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Devices That Are Associated With Refrigeration Equipment (AREA)
Details Of Measuring And Other Instruments (AREA)

US11/657,444 2006-02-07 2007-01-25 Conditioning device of the free cooling type Abandoned US20070180848A1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ITPD2006U000015		2006-02-07
IT000015U ITPD20060015U1 (it)	2006-02-07	2006-02-07	Dispositivo di condizionamento perfezionato del tipo a raffreddamento libero

Publications (1)

Publication Number	Publication Date
US20070180848A1 true US20070180848A1 (en)	2007-08-09

Family

ID=38016553

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
US11/657,444 Abandoned US20070180848A1 (en)	2006-02-07	2007-01-25	Conditioning device of the free cooling type

Country Status (6)

Country	Link
US (1)	US20070180848A1 (de)
EP (1)	EP1816408B1 (de)
AT (1)	ATE446483T1 (de)
DE (1)	DE602007002831D1 (de)
ES (1)	ES2335237T3 (de)
IT (1)	ITPD20060015U1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20090000146A1 (en) *	2007-06-26	2009-01-01	Gm Global Technology Operations, Inc.	Evaporator Core Drying System
US20090298409A1 (en) *	2008-05-29	2009-12-03	Maersk Container Industri A/S	Ventilation valve arrangement and transport container with a ventilation valve arrangement
US10180261B1 (en) *	2015-12-28	2019-01-15	Amazon Technologies, Inc.	Model based cooling control system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP6111499B2 (ja) *	2013-02-13	2017-04-12	パナソニックＩｐマネジメント株式会社	空気調和システム、指示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2470488A (en) *	1943-08-16	1949-05-17	Anemostat Corp America	Air flow control means
US4519539A (en) *	1982-09-29	1985-05-28	Carrier Corporation	Method and apparatus for regulating an economizer damper using indoor fan air pressure
US6038879A (en) *	1995-08-08	2000-03-21	Yvon Turcotte	Combined air exchange and air conditioning unit
US20040148948A1 (en) *	2002-03-28	2004-08-05	Susumu Kameyama	Cooling device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3027447A1 (de) *	1980-07-19	1982-02-11	Horst Joachim 6700 Ludwigshafen Schmittel	Vorrichtung zur be- und entlueftung
AT391933B (de) *	1986-08-14	1990-12-27	Altexa Lueftungstechnische Anl	Klima- und lueftungsgeraet zum einbau in eine wand, fenster oder dergleichen
IT1319610B1 (it) *	2000-12-22	2003-10-20	Siemens Inf & Comm Networks	Procedimento e apparecchiatura per il condizionamento termico diarmadi contenenti apparecchiature elettroniche
FI120705B (fi) *	2001-11-09	2010-01-29	Chiller Oy	Jäähdytyslaitteisto sisäilman jäähdyttämiseksi

2006
- 2006-02-07 IT IT000015U patent/ITPD20060015U1/it unknown
2007
- 2007-01-22 AT AT07100880T patent/ATE446483T1/de not_active IP Right Cessation
- 2007-01-22 EP EP07100880A patent/EP1816408B1/de not_active Not-in-force
- 2007-01-22 DE DE602007002831T patent/DE602007002831D1/de active Active
- 2007-01-22 ES ES07100880T patent/ES2335237T3/es active Active
- 2007-01-25 US US11/657,444 patent/US20070180848A1/en not_active Abandoned

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2470488A (en) *	1943-08-16	1949-05-17	Anemostat Corp America	Air flow control means
US4519539A (en) *	1982-09-29	1985-05-28	Carrier Corporation	Method and apparatus for regulating an economizer damper using indoor fan air pressure
US6038879A (en) *	1995-08-08	2000-03-21	Yvon Turcotte	Combined air exchange and air conditioning unit
US20040148948A1 (en) *	2002-03-28	2004-08-05	Susumu Kameyama	Cooling device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20090000146A1 (en) *	2007-06-26	2009-01-01	Gm Global Technology Operations, Inc.	Evaporator Core Drying System
US7637031B2 (en) *	2007-06-26	2009-12-29	Gm Global Technology Operations, Inc.	Evaporator core drying system
US20090298409A1 (en) *	2008-05-29	2009-12-03	Maersk Container Industri A/S	Ventilation valve arrangement and transport container with a ventilation valve arrangement
US8562399B2 (en) *	2008-05-29	2013-10-22	Maersk Container Industri As	Ventilation valve arrangement and transport container with a ventilation valve arrangement
US10180261B1 (en) *	2015-12-28	2019-01-15	Amazon Technologies, Inc.	Model based cooling control system

Also Published As

Publication number	Publication date
ITPD20060015U1 (it)	2007-08-08
ATE446483T1 (de)	2009-11-15
EP1816408A1 (de)	2007-08-08
DE602007002831D1 (de)	2009-12-03
ES2335237T3 (es)	2010-03-23
EP1816408B1 (de)	2009-10-21

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