SE467173B - Method and arrangement for preventing unacceptable temperature variations in a space with electronic units - Google Patents

Method and arrangement for preventing unacceptable temperature variations in a space with electronic units

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Publication number
SE467173B
SE467173B SE8704430A SE8704430A SE467173B SE 467173 B SE467173 B SE 467173B SE 8704430 A SE8704430 A SE 8704430A SE 8704430 A SE8704430 A SE 8704430A SE 467173 B SE467173 B SE 467173B
Authority
SE
Sweden
Prior art keywords
space
air
electronic
heat
electronic unit
Prior art date
Application number
SE8704430A
Other languages
Swedish (sv)
Other versions
SE8704430L (en
SE8704430D0 (en
Inventor
Jan Aake Allan Kristensson
Original Assignee
Jan Aake Allan Kristensson
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 Jan Aake Allan Kristensson filed Critical Jan Aake Allan Kristensson
Priority to SE8704430A priority Critical patent/SE467173B/en
Publication of SE8704430D0 publication Critical patent/SE8704430D0/en
Publication of SE8704430L publication Critical patent/SE8704430L/en
Publication of SE467173B publication Critical patent/SE467173B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The present invention relates to a method and an arrangement for preventing unacceptable temperature variations in spaces 2 with electronic units 3, the components of which give off heat during operation and are sensitive to large and/or sudden temperature variations. In order to ensure accurate control of the cooling function without having to use a water cooler, cool night air is made to flow to the space 2 with the electronic unit 3 via a pipe system 6 in a cold magazine 5 consisting of a concrete material and located below or next to the building 1 in which the space 2 with the electronic unit 3 is situated. The cold stored in said cold magazine is released for cooling warmer air which is made to flow to the space 2 during the daytime, heat being carried away from the heat-emitting electronic components of the electronic unit 3 by outside air being guided from said cold magazine 5 into the space 2 and being made to flow upwards past these by being mixed with the heat rising from the same. The arrangement for implementing this method has an air supply device 7 which releases air at such a low level or such low levels in the space 2 that the air, by being mixed with the heat rising from the heat-emitting electronic components, is made to flow slowly upwards in the space. <IMAGE>

Description

467 175 uppvisar de kännetecken som framgår av efterföljande patentkrav 1. En för uppfinningsförfarandets genomförande lämplig anordning uppvisar de känne- tecken som framgår av efterföljande patentkrav 2. 467 175 has the features which appear from the appended claims 1. A device suitable for carrying out the method of the invention has the features which appear from the appended claims 2.

Genom att uppfinningsförfarandet och uppfinningsanordningen erhållit dessa kännetecken uppnås bl.a. att man kan uppnå en exakt styrning'av kylfunktionen utan användande av vattenkylare. Vidare förhindras att radongas föres in i utrymmet med de elektroniska enheterna och anordningen kan lätt hållas ren.By the fact that the inventive method and the inventive device have obtained these features, e.g. that an accurate control of the cooling function can be achieved without the use of a water cooler. Furthermore, radon gas is prevented from being introduced into the space with the electronic units and the device can easily be kept clean.

Uppfinningen skall nedan förklaras närmare med hänvisning till bifogade ritningar, på vilka figur 1 schematiskt illustrerar ett snitt av en byggnad med en anordning enligt uppfinningen, medan figur 2 illustrerar ett tid-temperaturdiagram.The invention will be explained in more detail below with reference to the accompanying drawings, in which Figure 1 schematically illustrates a section of a building with a device according to the invention, while Figure 2 illustrates a time-temperature diagram.

I figur 1 visas en fristående byggnad 1 med ett utrymme 2, i vilket en elektronisk enhet 3 i form av en elektronisk telefonväxel (visad med punkt- streckade linjer) är uppställd. Uteluft tas från omgivningen in i utrymmet Z via ett reglersystem 4 och ett kylmagasin 5. Detta består lämpligen av betongmaterial och är lämpligen placerat under eller bredvid byggnaden 1 samt uppvisar ett rörsystem 6 via vilket luften passerar.Figure 1 shows a free-standing building 1 with a space 2, in which an electronic unit 3 in the form of an electronic telephone exchange (shown in dotted lines) is arranged. Outdoor air is taken from the surroundings into the space Z via a control system 4 and a cooling magazine 5. This preferably consists of concrete material and is suitably placed under or next to the building 1 and has a pipe system 6 through which the air passes.

Reglersystemet 4 är så beskaffat och kylmagasinet 5 så dimensionerat att temperaturväxlingen mellan dagtid och nattetid hos den för införing i ut- rymmet 2 avsedda uteluften helt eller delvis jämnas ut genom att kyla i kylig nattluft lagras i kylmagasinet 5 då den bringas strömma via detta till utrymmet 2 och att den i kylmagasinet 5 lagrade kylan avges under upptill cirka 12 timmar för kylning av sådan varmare luft som under dagtid bringas strömma till utrymmet 2.The control system 4 is so shaped and the cooling magazine 5 is dimensioned that the temperature change between daytime and nighttime of the outdoor air intended for introduction into the space 2 is completely or partially evened out by storing cooling in cool night air in the cooling magazine 5 when it is brought current through it to the space. 2 and that the cold stored in the cooling magazine 5 is delivered for up to about 12 hours for cooling such warmer air which is brought to the space 2 during the day.

Luften bringas att strömma in i utrymmet 2 via ett tilluftdon 7 på sådan låg nivå eller sådana låga nivåer att den tillförda luften kan strömma uppåt förbi de flesta och företrädesvis samtliga värmeavgivande komponenter i den elektroniska enheten 5. Tilluftdonet 7 bringar luften att strömma in i utrymmet med mycket låg hastighet och företrädesvis med en hastighet på maximalt cirka 0,4 m/sek.The air is caused to flow into the space 2 via a supply air device 7 at such a low level or such low levels that the supplied air can flow upwards past most and preferably all heat-emitting components in the electronic unit 5. The supply air device 7 causes the air to flow into the space at a very low speed and preferably at a maximum speed of about 0.4 m / sec.

I utrymmet 2 utnyttjas den värme, som alstras av de värmeavgivande komponen- 3' 467 173 terna för att bringa den via tilluftdonet 7 inkommande luften att strömma sakta uppåt förbi företrädesvis samtliga elektroniska komponenter. Denna uppåtströmning av den inkommande luften beror på att den inkommande luften uppvärmes efter hand som den passerar de elektroniska komponenterna och blandas med den uppåtströmmande värmen från dessa. Uppåtströmningen blir tillräcklig för att bortföra värme från de elektroniska komponenterna men hastigheten på uppåtströmmarna blir inte högre än att varmluften kan samlas upptill i utrymmet och ledas ut ur utrymmets övre delar utan att det uppstår sådan turbulens i utrymmet att uppåtströmningen till eller varmluftuppsamlingen upptill i utrymmet 2 störs. Den upptill i utrymmet uppsamlade luften tas lämpligen ut till omgivningen via luftutsläpp B, 9 och/eller via ett luftutsläpp 11 till ett annat utrymme 10, som inne- håller reglersystemet 4.In the space 2, the heat generated by the heat-emitting components 3 '467 173 is used to cause the air entering via the supply air device 7 to flow slowly upwards, preferably past all the electronic components. This upward flow of the incoming air is due to the fact that the incoming air is heated as it passes the electronic components and mixed with the upward flowing heat from these. The upward flow is sufficient to dissipate heat from the electronic components but the velocity of the upward currents does not exceed that the hot air can collect at the top of the space and be led out of the upper parts of the space without such turbulence in the space that the upward flow to or hot air collection at the top of the space 2 is disturbed. The air collected at the top of the space is suitably taken out to the surroundings via air outlet B, 9 and / or via an air outlet 11 to another space 10, which contains the control system 4.

Den från utrymmmet 2 via luftutsläppet 11 till utrymmet 10 strömmande varmluften kan vid behov blandas med uteluft innan denna ledes ned i kylmagasinet 5.The hot air flowing from the space 2 via the air outlet 11 to the space 10 can, if necessary, be mixed with outdoor air before it is led down into the cooling magazine 5.

Reglersystemet 4 för reglering av temperaturutjämningen kan vara utförd på olika sätt allt efter behov. Ett i praktiken problemfritt fungerande regler- system kan uppvisa ett luftintag 12 för intagning av uteluften, en från luft- intaget 12 gående luftledning 13 med ett spjäll 14. Efter spjället 14 förenar sig luftledningen 13 med en luftledning 15, som uppvisar ett spjäll 16 och som är avsedd att vid behov ta in varmluft från utrymmet 2 via ut- rymmet 10 och blanda denna varmluft med uteluften i en luftledning 17. I denna är anordnat en givare 18, som säkerställer att inte alltför kall uteluft tas in i systemet. Vid den illustrerade anläggningen bör den till kylmagasinet 5 strömmande luften inte vara lägre än 1000 och är utetem- peraturen lägre än så kan uteluften blandas med varmluft från utrymmet 2.The control system 4 for regulating the temperature equalization can be designed in different ways as required. A practically problem-free control system can have an air intake 12 for intake of the outdoor air, an air line 13 leaving the air intake 12 with a damper 14. After the damper 14, the air line 13 joins an air line 15, which has a damper 16 and which is intended to take in hot air from the space 2 via the space 10 and, if necessary, mix this hot air with the outdoor air in an air duct 17. In this a sensor 18 is arranged, which ensures that not too cold outdoor air is taken into the system. In the illustrated plant, the air flowing to the cooling magazine 5 should not be lower than 1000 and if the outdoor temperature is lower than that, the outdoor air can be mixed with hot air from the space 2.

Denna luftreglering kan bl.a. ske genom reglering av spjällen 14 och 16.This air regulation can i.a. be done by regulating the dampers 14 and 16.

I luftledningen 17 finns ett luftfilter 19 och eventuellt efter detta ett kolfilter 20. Vidare står luftledningen 17 i förbindelse med en flödesvakt 21, som kommer av luftflödet i denna. Efter flödesvakten 21 uppvisar luft- ledningen 17 en fläkt 22, som ombesörjer luftflödet från omgivningen till utrymmet 2 och därefter mynnar luftledningen 17 i rörsystemet 6 i kyl- magasinet 5.In the air duct 17 there is an air filter 19 and possibly after this a carbon filter 20. Furthermore, the air duct 17 is in communication with a flow monitor 21, which comes from the air flow therein. After the flow monitor 21, the air line 17 has a fan 22, which provides the air flow from the surroundings to the space 2 and then the air line 17 opens into the pipe system 6 in the cooling magazine 5.

I kylmagasinet 5 finns en givare 23, som är avsedd att överlåta givarens 18 reglerfunktion när temperaturen i kylmagasinet 5 sjunker under ett förutbestämt värde. I utrymmet 2 finns dessutom en larmgivare 24, somIn the cooling magazine 5 there is a sensor 23, which is intended to transfer the control function of the sensor 18 when the temperature in the cooling magazine 5 falls below a predetermined value. In the space 2 there is also an alarm sensor 24, which

Claims (5)

467 175 avger larm om temperaturen i utrymmet 2 stiger över ett förutbestämt värde t.ex. 3o°c.467 175 sounds an alarm if the temperature in the room 2 rises above a predetermined value e.g. 30 ° C. 1. Det ovan beskrivna förfarandet och den ovan beskrivna anordningen har visat sig fungera utmärkt i en testanläggning och testresultatet framgår av tid-temperaturdiagrammet enligt figur 2. Av detta diagram framgår att det uppfinningsenliga förfarandet och den uppfinningsenliga anordningen "jämnat ut" en utetemperaturvariation på drygt 160C till en innetemperatur- variation på endast cirka 5OC. Detta framgår av att kurvan för utetemperatur pendlar mellan cirka 7OC och 250C medan kurvan för innetemperatur i ut- rymmet 2 endast pendlar mellan cirka 1506 och ZÛOC. Kurvorna i diagrammet enligt figur 2 är framtagna under drift av anordningen med helt öppna ute- luftspjäll under tre varma sommardagar. Om emellertid reglersystemet kopplas in kan man lämpligen välja en önskad betongtemperatur som ligger strax över dygnets medeltemperatur, varigenom en ännu "jämnare" kurva på betongtemperatur erhålles.The method described above and the device described above have proved to work excellently in a test plant and the test result is shown in the time-temperature diagram according to Figure 2. This diagram shows that the method according to the invention and the device according to the invention "smoothed out" an outdoor temperature variation of just over 160C to an indoor temperature variation of only about 5OC. This can be seen from the fact that the curve for outdoor temperature fluctuates between about 7OC and 25 ° C, while the curve for indoor temperature in room 2 only fluctuates between about 1506 and ZÛOC. The curves in the diagram according to figure 2 are produced during operation of the device with fully open outdoor air dampers during three hot summer days. However, if the control system is switched on, it is convenient to select a desired concrete temperature which is just above the average temperature of the day, whereby an even "smoother" curve of concrete temperature is obtained. 2. Uppfinningen är inte begränsad till det ovan beskrivna utan den kan variera inom ramen för efterföljande patentkrav. Sålunda kan förfarandet tillämpas vid andra typer av elektroniska enheter än telefonväxlar, kylmagasinet kan vara av annat material än betong och tilluftdonet kan vara av känd typ och det kan vara inställbart för att vid behov kunna variera hastigheten på den i utrymmet inströmmande luften.The invention is not limited to what is described above, but it may vary within the scope of the appended claims. Thus, the method can be applied to other types of electronic devices than telephone exchanges, the cooling magazine can be of a material other than concrete and the supply air device can be of known type and it can be adjustable to be able to vary the speed of the air flowing into the space. 3. Patentkrav: 1. rymmen (2) med elektroniska enheter (3), vars komponenter, t.ex. elektronik-Claims: 1. spaces (2) with electronic devices (3), the components of which, e.g. electronics- 4. Förfarande för att förhindra oacceptabla temperaturvariationer i ut- kretsar, avger värme under drift och är känsliga för stora och/eller snabba temperaturvariationer, varvid de elektroniska enheterna (3) företrädesvis utgöres av telefonväxlar och varvid temperaturväxlingen mellan dagtid och nattetid hos den för införing till utrymmet (2) med den elektroniska en- heten (3) avsedda uteluften helt eller delvis jämnas ut genom att kyla i kylig nattluft lagras då den bringas strömma till utrymmet (2) med den a v att kylig nattluft bringas strömma till utrymmet (2) med den elektroniska enheten (3) via ett elektroniska enheten (3), k ä n n e t e c k n a t rörsystem (6) i ett kylmagasin (5) bestående av betongmaterial och placerat under eller bredvid byggnaden (1), i vilken utrymmet (2) med den elektroniska enheten (3) finns, att den i nämnda kylmagasin (5) lagrade kylan avges under upptill cirka 12 timmar för kylning av sådan varmare luft, som under dagtidA method for preventing unacceptable temperature variations in circuits, emitting heat during operation and being sensitive to large and / or rapid temperature variations, the electronic units (3) preferably consisting of telephone exchanges and wherein the temperature change between daytime and nighttime of the one for introduction the outdoor air intended for the space (2) with the electronic unit (3) is completely or partially evened out by storing cooling in cool night air when it is brought to flow to the space (2) with that of bringing cool night air to the room (2) with the electronic unit (3) via an electronic unit (3), characterized pipe system (6) in a cooling magazine (5) consisting of concrete material and placed under or next to the building (1), in which the space (2) with the electronic the unit (3) is provided that the cold stored in said cooling magazine (5) is released for up to about 12 hours for cooling such warmer air, which during the day 5. - 467 175 bringas strömma till utrymmet (2) med den elektroniska enheten (3) och att värme bortföres från den elektroniska enhetens (3) värmeavgivande elektroniska komponenter genom att uteluften ledes från nämnda kylmagasin (5) in i ut- rymmet (2) med den elektroniska enheten (3) och bringas strömma uppåt förbi dessa genom att blandas med den uppåtstigande värmen från desamma, varigenom den intagna luften bringas strömma sakta uppåt i utrymmet (2), företrädesvis med en hastighet på maximalt 0,4 m/sek., utan att åstadkomma störande turbulens i detta. 2. Anordning för att förhindra oacceptabla temperaturvariationer i utrymmen (2) med elektroniska enheter (3), vars komponenter, t.ex. elektronikkretsar, avger värme under drift och är känsliga för stora och/eller snabba tem- peraturvariationer, varvid de elektroniska enheterna (3) företrädesvis ut- göres av telefonväxlar och varvid temperaturväxlingen mellan dagtid och nattetid hos den för införing till utrymmet (2) med den elektroniska en- heten (3) avsedda uteluften helt eller delvis jämnas ut genom att kyla i kylig nattluft lagras då den bringas strömma till utrymmet (2) med den elektroniska enheten (3), enligt patentkrav 1, k ä n n e t e c k n a d a v att den uppvisar ett kylmagasin (5) av betong och placerat under eller bredvid utrymmet (2) med den elektroniska enheten (3), att detta kylmagasin (5) uppvisar ett rörsystem (6), via vilket luften ledes till utrymmet (2) med de elektroniska enheterna (3) och att i utrymmet (2) är anordnat ett tilluftdon (7) för att avge via kylmagasinet (5) till utrymmet (2) med den elektroniska enheten (3) strömmande luft på sådan låg nivå eller sådana låga nivåer i utrymmet (2) att luften genom att blandas med den uppstigande värmen från de värmeavgivande elektroniska komponenterna bringas strömma sakta uppåt i detta.5. - 467 175 bringing current to the space (2) with the electronic unit (3) and that heat is removed from the heat-emitting electronic components of the electronic unit (3) by directing the outdoor air from said cooling magazine (5) into the space (2). ) with the electronic unit (3) and is brought to flow upwards past them by mixing with the rising heat from them, whereby the intake air is caused to flow slowly upwards in the space (2), preferably at a speed of maximum 0.4 m / sec ., without causing disturbing turbulence in it. Device for preventing unacceptable temperature variations in spaces (2) with electronic devices (3), the components of which, e.g. electronic circuits, emit heat during operation and are sensitive to large and / or rapid temperature variations, the electronic units (3) preferably being telephone exchanges and the temperature change between daytime and nighttime of the one being introduced into the space (2) with the the outdoor air intended for the electronic unit (3) is completely or partially equalized by cooling in cool night air when it is brought to flow to the space (2) with the electronic unit (3), according to claim 1, characterized in that it has a cooling magazine (5) of concrete and placed under or next to the space (2) with the electronic unit (3), that this cooling magazine (5) has a pipe system (6), via which the air is led to the space (2) with the electronic units (3) ) and that in the space (2) a supply air device (7) is arranged for discharging air flowing via the cooling magazine (5) to the space (2) with the electronic unit (3) at such a low level or such low levels in the space (2) at t the air by mixing with the rising heat from the heat-emitting electronic components causes current to flow slowly upwards therein.
SE8704430A 1987-11-13 1987-11-13 Method and arrangement for preventing unacceptable temperature variations in a space with electronic units SE467173B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8704430A SE467173B (en) 1987-11-13 1987-11-13 Method and arrangement for preventing unacceptable temperature variations in a space with electronic units

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8704430A SE467173B (en) 1987-11-13 1987-11-13 Method and arrangement for preventing unacceptable temperature variations in a space with electronic units

Publications (3)

Publication Number Publication Date
SE8704430D0 SE8704430D0 (en) 1987-11-13
SE8704430L SE8704430L (en) 1989-05-14
SE467173B true SE467173B (en) 1992-06-01

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Application Number Title Priority Date Filing Date
SE8704430A SE467173B (en) 1987-11-13 1987-11-13 Method and arrangement for preventing unacceptable temperature variations in a space with electronic units

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011315A1 (en) * 1995-09-18 1997-03-27 Hans Arne Bertil Liljedahl Method for cooling of premises and device for carrying through said method
WO2000040915A1 (en) * 1998-12-30 2000-07-13 Emerson Energy Systems Ab Energy storage in cooling systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011315A1 (en) * 1995-09-18 1997-03-27 Hans Arne Bertil Liljedahl Method for cooling of premises and device for carrying through said method
US6142214A (en) * 1995-09-18 2000-11-07 Liljedahl; Hans Arne Bertil Method for altering the temperature of a premises and device for carrying out said method
WO2000040915A1 (en) * 1998-12-30 2000-07-13 Emerson Energy Systems Ab Energy storage in cooling systems
US6571861B1 (en) 1998-12-30 2003-06-03 Emerson Energy Systems Ab Energy storage in cooling systems

Also Published As

Publication number Publication date
SE8704430L (en) 1989-05-14
SE8704430D0 (en) 1987-11-13

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