SE450043B - INTERNAL SPACE COOLING SYSTEM - Google Patents
INTERNAL SPACE COOLING SYSTEMInfo
- Publication number
- SE450043B SE450043B SE8001415A SE8001415A SE450043B SE 450043 B SE450043 B SE 450043B SE 8001415 A SE8001415 A SE 8001415A SE 8001415 A SE8001415 A SE 8001415A SE 450043 B SE450043 B SE 450043B
- Authority
- SE
- Sweden
- Prior art keywords
- heat exchanger
- cooling system
- coolant
- temperature
- conditioning unit
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
Description
450 043 ningen erbjuder god ekonomi beträffande energiförbrukning utan att utnyttja kostsam eller svârreglerbar utrustning. The 450 043 offers good economy in terms of energy consumption without the use of expensive or difficult-to-control equipment.
Detta uppnås med ett kylsystem av inledningsvis beskriven typ som är kännetecknad av att en regleranordning är anordnad för att in- koppla den luftkylda värmeväxlaren i serie med huvudkylaren en- dast när temperaturen hos luften som kyler värmeväxlaren understi- ger temperaturen hos kylvätskan som lämnar konditioneringsenheten.This is achieved with a cooling system of the initially described type which is characterized in that a control device is provided for switching on the air-cooled heat exchanger in series with the main cooler only when the temperature of the air cooling the heat exchanger falls below the temperature of the coolant leaving the conditioning unit.
Ytterligare särdrag och fördelar hos uppfinningen framgår av föl- jande beskrivning av en lämplig utföringsform, given som exempel och utan begränsning, samt med hänvisning till bifogade ritning, i vilken den enda figuren visar ett arbetsdiagram för systemet.Further features and advantages of the invention will become apparent from the following description of a suitable embodiment, given by way of example and without limitation, and with reference to the accompanying drawing, in which the single figure shows a working diagram of the system.
Med hänvisning till figuren innefattar systemet väsentligen en konditioneringsenhet 1, vilken arbetar med kylt vatten eller mera allmänt med en kylblandning, varvid vattnet eller blandningen över- förs medelst en krets, vilken innefattar en matningsledning 2 till en värmeväxlare 3, vilken är belägen invändigt i konditionerings- enheten 1, vilken också innefattar en fläkt 4 för att alstra cir- kulation hos luften.Referring to the figure, the system essentially comprises a conditioning unit 1, which operates with cooled water or more generally with a cooling mixture, the water or mixture being transmitted by means of a circuit which comprises a supply line 2 to a heat exchanger 3, which is located internally in the conditioning the unit 1, which also comprises a fan 4 for generating circulation of the air.
En returledning 5 leder kylmediet till en central kylstation, vil- ken är uppbyggd av två delar, nämligen en kylkretsdel 6 och en luftkyld värmeväxlardel 7 i form av en värmeväxlare., De två delarna 6 och 7 är anslutna i serie till varandra och väts- kecirkulationen sker medelst en pump 8 med en trevägs ventil 10 och en shuntledning 9 under reglering av en regleranordning med en differentialtermostat, som bildar en anordning för tillslag och frânslag av värmeväxlaren 7.A return line 5 leads the coolant to a central cooling station, which is made up of two parts, namely a cooling circuit part 6 and an air-cooled heat exchanger part 7 in the form of a heat exchanger. The two parts 6 and 7 are connected in series to each other and liquid. The circulation takes place by means of a pump 8 with a three-way valve 10 and a shunt line 9 under the control of a control device with a differential thermostat, which forms a device for switching on and off the heat exchanger 7.
Kylkretsdelen 6 bihku huvudkylaren och kyls medelst en fläkt 11 och värmeväxlardelen 7 kan också vara luftkyld medelst ännu en fläkt 12.The cooling circuit part 6 bihku the main cooler and is cooled by means of a fan 11 and the heat exchanger part 7 can also be air-cooled by means of another fan 12.
I.det skisserade systemet, där Tr betecknar den temperatur som önskas i det inre utrymmet, Ta betecknar uteluftens temperatur, T1MIX temperaturen hos blandningen i ledningen 2 eller vid ingångs- änden till konditioneringsenheten, T2MIX utgångstemperaturen hos blandningen från konditioneringsenheten, kan två situationer upp- stå under det årliga förloppet: ---~ -->....>._..... . -..i å: 450 043 1) sommarbruk, Ta >lT2MIx Därvid har uteluften högre temperatur än kylmediet då det lämnar konditioneringsenheten och det är nödvändigt att slå ifrån värme- växlardelen 7 och endast använda kylkretsdelen 6. Trevägsventilen 10, vilken endast kan användas i till-från-lägen, slår då automa- tiskt ifrån värmeväxlaren 7 och systemet arbetar såsom ett vanligt kylvattensystem. 2) Vinterbruk eller arbete då Tr > TZMIX > Ta I detta fall är uteluftens temperatur lägre än den hos kylvätskan som skall kylas sedan den återgått från konditioneringsenheten 1.In the system outlined, where Tr denotes the temperature desired in the interior space, Ta denotes the outdoor air temperature, T1MIX the temperature of the mixture in line 2 or at the inlet end of the conditioning unit, T2MIX the outlet temperature of the mixture from the conditioning unit, two situations may arise. stand during the annual process: --- ~ -> ....> ._...... - .. i å: 450 043 1) summer use, Ta> lT2MIx The outdoor air has a higher temperature than the coolant as it leaves the conditioning unit and it is necessary to switch off the heat exchanger part 7 and only use the cooling circuit part 6. The three-way valve 10, which can only be used in on-off modes, the heat exchanger 7 then automatically switches off and the system operates as a normal cooling water system. 2) Winter use or work when Tr> TZMIX> Ta In this case, the temperature of the outdoor air is lower than that of the coolant to be cooled after returning from the conditioning unit 1.
Uteluften kan därför avge värme genom att uppta värmet från kyl- vätskan i ökande proportion beroende på den termiska differentia- len mellan blandningen och uteluften. Huvudkylaren eller kylkrets- delen 6 arbetar endast i sammanhang med värmeväxlaren 7 och vid en given utetemperatur, den kan även helt tagas ur bruk, så att endast fläkten 11 arbetar. Vid ännu lägre temperatur kan slutli- gen huvudkylaren 6 definitivt slås ifrån.The outdoor air can therefore emit heat by absorbing the heat from the coolant in increasing proportion depending on the thermal differential between the mixture and the outdoor air. The main cooler or cooling circuit part 6 only works in connection with the heat exchanger 7 and at a given outdoor temperature, it can also be completely taken out of use, so that only the fan 11 works. At an even lower temperature, the main cooler 6 can finally be switched off definitively.
Det framgår att energibesparingen är lika med den energi, som mot- svarar det från värmeväxlaren 7 avgivna värmet till uteluften.It appears that the energy saving is equal to the energy which corresponds to the heat emitted from the heat exchanger 7 to the outdoor air.
Systemet regleras icke längre genom förändring av flödet av kyl- vätska till konditioneringsenheterna 1; regleranordningen, vilken innefattar en differentialtermostat arbetar så, att den alltid håller kylvätsketemperaturen vid den högsta nivå, som är förenlig med den önskade potentialen och åstadkommer sålunda den högsta termiska differentialen mot uteluftens temperatur, medan kylväts- keflödet förblir konstant.The system is no longer regulated by changing the flow of coolant to the conditioning units 1; the control device, which comprises a differential thermostat, operates so that it always keeps the coolant temperature at the highest level, which is compatible with the desired potential and thus produces the highest thermal differential against the temperature of the outdoor air, while the coolant flow remains constant.
Den ökade kostnaden för att både utrusta systemet med en värme- växlare och att driva denna extra del är rikligt kompenserad av den återvunna energin och genom systemets totala verkningsgrad.The increased cost of both equipping the system with a heat exchanger and operating this extra part is amply offset by the recovered energy and by the overall efficiency of the system.
I den föregående beskrivningen har nämnts såväl kylt vatten som kylblandning utan att någon skillnad gjorts mellan dessa beroende på att kylmediets typ icke är en avgörande faktor vid driften av systemet.In the foregoing description, both cooled water and cooling mixture have been mentioned without any difference being made between them due to the fact that the type of coolant is not a decisive factor in the operation of the system.
Systemet har visats endast schematiskt och det är uppenbart att dess dimensioner och komplexiteten i dess uppbyggnad helt bestäms av de utrymmen som skall konditioneras. 450 045 Underpraktíska. försök med uppfinningen har goda resultat upp- nåtts vid användning av en Honeywell ventilmodell V 5050 A-B kombinerad med en Honeywell R 7412 differentialtemperaturregu- lator för trevägsventilen 10.The system has been shown only schematically and it is obvious that its dimensions and the complexity of its construction are completely determined by the spaces to be conditioned. 450 045 Underpractical. experiments with the invention, good results have been obtained using a Honeywell valve model V 5050 A-B combined with a Honeywell R 7412 differential temperature regulator for the three-way valve 10.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT41521/79A IT1124308B (en) | 1979-02-23 | 1979-02-23 | ENVIRONMENT COOLING SYSTEM |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8001415L SE8001415L (en) | 1980-08-24 |
SE450043B true SE450043B (en) | 1987-06-01 |
Family
ID=11250572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8001415A SE450043B (en) | 1979-02-23 | 1980-02-22 | INTERNAL SPACE COOLING SYSTEM |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE3006183C2 (en) |
FR (1) | FR2449921A1 (en) |
GB (1) | GB2044436B (en) |
IT (1) | IT1124308B (en) |
SE (1) | SE450043B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3228934C2 (en) * | 1982-08-03 | 1985-03-28 | Adolf H. 7410 Reutlingen Kirn | Device for cooling liquid |
CA1234983A (en) * | 1982-12-10 | 1988-04-12 | Claudio Rossi | Fluid cooling unit for air conditioning plant |
CA2995017C (en) * | 2017-03-01 | 2019-12-24 | Kimura Kohki Co., Ltd. | Air conditioner and air conditioning system including the same |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2718766A (en) * | 1952-07-11 | 1955-09-27 | Imperatore Thomas | Method and apparatus for operating a building air conditioning apparatus |
-
1979
- 1979-02-23 IT IT41521/79A patent/IT1124308B/en active
-
1980
- 1980-02-19 DE DE3006183A patent/DE3006183C2/en not_active Expired
- 1980-02-20 GB GB8005793A patent/GB2044436B/en not_active Expired
- 1980-02-22 FR FR8003902A patent/FR2449921A1/en active Granted
- 1980-02-22 SE SE8001415A patent/SE450043B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT1124308B (en) | 1986-05-07 |
FR2449921A1 (en) | 1980-09-19 |
SE8001415L (en) | 1980-08-24 |
GB2044436A (en) | 1980-10-15 |
FR2449921B1 (en) | 1983-11-25 |
DE3006183A1 (en) | 1980-09-04 |
IT7941521A0 (en) | 1979-02-23 |
GB2044436B (en) | 1983-06-15 |
DE3006183C2 (en) | 1984-07-12 |
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