DK159738B - COMBINED COOLING AND HEATING SYSTEM - Google Patents
COMBINED COOLING AND HEATING SYSTEM Download PDFInfo
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- DK159738B DK159738B DK303283A DK303283A DK159738B DK 159738 B DK159738 B DK 159738B DK 303283 A DK303283 A DK 303283A DK 303283 A DK303283 A DK 303283A DK 159738 B DK159738 B DK 159738B
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- water
- heat exchanger
- temperature
- temperature sensor
- valve
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Classifications
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- 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
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
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- 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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/04—Desuperheaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Air Conditioning Control Device (AREA)
Description
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DK 159738 BDK 159738 B
Opfindelsen angår et kombineret køle- og varmeanlæg af den i krav l's indledning angivne art, der overfører termisk energi fra et kølekredsløb til et varmtvandssystem. Nærmere bestemt angår opfindelsen kombinationen af et køleanlæg 5 og en varmtvandsforvarmer af varmevekslertypen (superheat-er-varmeveksler) samt et system til integration af denne varmtvandsforvarmer i et luftkonditioneringsanlæg.The invention relates to a combined cooling and heating system of the kind specified in the preamble of claim 1, which transfers thermal energy from a cooling circuit to a hot water system. More particularly, the invention relates to the combination of a cooling system 5 and a superheat-type heat exchanger-type heat exchanger as well as a system for integrating this hot water preheater into an air-conditioning system.
Et typisk køleanlæg af kompressionstypen består af et antal 10 forskellige komponenter såsom kompressor, kondensator, fordamper og ekspansionsventil beregnet til overførsel af termisk energi (varme) fra fordamperen til kondensatoren. Det er kendt at indsætte en varmeveksler foran kondensatoren til udtagning af termisk energi ved et relativt højt tempe-15 raturniveau (superheating-princippet) inden dampens kondensering i kondensatoren.A typical compression-type cooling system consists of a number of 10 different components such as compressor, condenser, evaporator and expansion valve intended for transferring thermal energy (heat) from the evaporator to the condenser. It is known to insert a heat exchanger in front of the capacitor to take out thermal energy at a relatively high temperature level (superheating principle) before steam condensation in the condenser.
Almindelige bygninger er sædvanligvis udstyret med en varmtvandsforsyning (varmt brugsvand) af den art, hvor en 20 varmtvandsbeholder fødes direkte med koldt brugsvand. I kombination med et air-conditionanlæg er det kendt at forvarme det til varmtvandsbeholderen (eller varmtvandsgenera-toren) tilførte kolde brugsvand ved at lade dette passere den nævnte superheater-varmeveksler, inden vandet ledes ind 25 i varmtvandsbeholderen. Et sædvanligt air-conditionanlæg er opbygget på den måde, at varme fra det indre af bygningen overføres via anlægget til den omgivende luft eller til en anden uden for bygningen værende varmerecipient (grundvand, jord etc.). Den udledte varmeenergi repræsenterer et 30 energitab. Ved i stedet at udnytte den i bygningen værende overflødige varme til forvarmning af det varme brugsvand ved hjælp af det omtalte forvarmningsprincip opnås en nyttiggørelse af varmeenergien. Princippet kan tages i anvendelse i boliger, hvor det varme brugsvand anvendes til bad-35 ning, rengøring m.v., samt til kommercielle formål, eksempelvis i supermarkeder, restauranter og lignende steder, - 2 -Ordinary buildings are usually equipped with a hot water supply (hot tap water) of the kind where a 20 hot water tank is fed directly with cold tap water. In combination with an air-conditioning system, it is known to preheat the cold hot water supplied to the hot water tank (or hot water generator) by passing this said superheater heat exchanger before the water is fed into the hot water tank. A conventional air-conditioning system is designed in such a way that heat from the interior of the building is transferred via the system to the ambient air or to another outside the building being a heat recipient (groundwater, soil etc.). The derived heat energy represents a 30 energy loss. Instead, by utilizing the excess heat present in the building to preheat the hot domestic water by the above-mentioned preheating principle, a recovery of the heat energy is achieved. The principle can be applied in homes where the hot tap water is used for bathing, cleaning, etc., as well as for commercial purposes, for example in supermarkets, restaurants and similar places, - 2 -
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hvor en relativ stor kølekapacitet forefindes, og hvor der samtidig er behov for varmt brugsvand eller brugsvarme til andet formål.where there is a relatively large cooling capacity and where there is also a need for hot water or other heat.
5 Visse typer air-conditionanlæg er indrettet reversible, således at anlægget ved passende omstyring (reversering) er i stand til opvarme bygningen i varmesæsonen (i vinterhalvåret). Denne type air-conditionanlæg benævnes sædvanligvis varmepumpe. En varmepumpe kan, hvis der er behov derfor, 10 producere varmt brugsvand. Hertil benyttes en varmeveksler af den omtalte superheatertype indsat foran fordampere.5 Certain types of air-conditioning systems are designed to be reversible, so that the system is able to heat the building during the heating season (during the winter season) by appropriate reversing (reversing). This type of air conditioner is usually referred to as a heat pump. A heat pump can, if needed, produce hot domestic water. For this purpose, a heat exchanger of the mentioned superheater type is used in front of evaporators.
Den foreliggende opfindelse angår specielt et kombineret køle- og varmeanlæg af den tredelte type, dvs. et anlæg op-15 delt i tre separate sektioner, hvoraf den ene sektion udgøres af en udendørs anbragt varmeveksler, der køles (eller opvarmes) af den omgivende luft. Den anden sektion er anbragt indendørs og fungerer som en varmeveksler, der transmitterer varme eller kulde til det cirkulerende varmemedium 20 i bygningen (fx centralvarmeanlægget), og den tredje sektion indeholder anlæggets kompressorunit inklusive den omtalte superheater-varmeveksler til forvarmning af det varme brugsvand.Specifically, the present invention relates to a combined three-type refrigeration and heating system, i.e. a plant divided into three separate sections, one of which is an outdoor heat exchanger that is cooled (or heated) by the ambient air. The second section is housed indoors and acts as a heat exchanger that transmits heat or cold to the circulating heating medium 20 in the building (e.g., the central heating system), and the third section contains the compressor unit of the system including the aforementioned superheater heat exchanger for preheating the hot water.
25 Vandgennemstrømningen gennem superheater-varmeveksleren kontrolleres på en sådan måde, at systemet fungerer effektivt og sikkert under alle forhold. En brugsvandscirkulationspumpe arbejder kontinuerligt samtidig med, at kompressoren arbejder, således at der til stadighed cirkulerer 30 vand gennem varmeveksleren, når kompressoren er i arbejde.25 The water flow through the superheater heat exchanger is controlled in such a way that the system operates efficiently and safely in all conditions. A DHW circulation pump operates continuously while the compressor is operating, so that 30 water continuously circulates through the heat exchanger when the compressor is operating.
En bypassforbindelse danner en parallel shunt forbi super-heater-varmeveksleren. Denne shunt er forsynet med en strømningsmodstand, eksempelvis i form af en drøvleventil, hvormed gennemstrømningen gennem shunten begrænses. En 35 indgangstemperaturføler er anbragt foran varmeveksleren til registrering af vandets indløbstemperatur. Den anden udgangstemperaturføler er anbragt efter varmeveksleren til - 3 -A bypass connection forms a parallel shunt past the super-heater heat exchanger. This shunt is provided with a flow resistance, for example in the form of a throttle valve, which limits the flow through the shunt. A 35 input temperature sensor is arranged in front of the heat exchanger to record the water inlet temperature. The second output temperature sensor is arranged after the heat exchanger to - 3 -
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registrering af udløbstemperaturen fra denne. En ventil styrer vandgennemstrømningen gennem varmeveksleren, og en sikkerhedstemperaturføler registrerer temperaturen af det vand, der recirkuleres til varmtvandsbeholderen. Den om-5 talte cirkulationspumpe, der arbejder samtidig med kompressoren, tjener til at cirkulere vand gennem varmeveksleren, når vandets indløbstemperatur er under den ønskede varmt-vandstemperatur, og når vandets afgangstemperatur er over den temperatur, vandet ønskes opvarmet til.recording the outlet temperature from this. A valve controls the water flow through the heat exchanger and a safety temperature sensor records the temperature of the water recirculated to the hot water tank. The above-mentioned circulation pump, operating simultaneously with the compressor, serves to circulate water through the heat exchanger when the water inlet temperature is below the desired hot-water temperature and when the outlet water temperature is above the temperature the water is desired to heat.
1010
Sikkerhedstemperaturføleren har til opgave at stoppe det totale anlæg (kompressor, cirkulationspumpe osv.), hvis temperaturen bliver for høj. Alle de omtalte temperaturfølere er forbundet i serie med ventilen (magnetventilen) og 15 danner på denne måde et integreret kontrolarrangement, hvormed flowet gennem varmeveksleren reguleres. Shunten over varmeveksleren bevirker en vis begrænset vandcirkulation i systemet, selv når magnetventilen er lukket, hvilket sikrer en mere nøjagtig og jævn afgangstemperatur.The safety temperature sensor has the task of stopping the total system (compressor, circulation pump, etc.) if the temperature becomes too high. All the temperature sensors mentioned are connected in series with the valve (solenoid valve) and in this way form an integrated control arrangement by which the flow through the heat exchanger is controlled. The shunt over the heat exchanger causes some limited water circulation in the system, even when the solenoid valve is closed, ensuring a more accurate and even outlet temperature.
2020
Tilstedeværelsen af sikkerhedstemperaturføleren, hvormed bl.a. magnetventilen kontrolleres, sikrer effektivt mod overhedning af vandet, hvis en af de primære reguleringsforanstaltninger skulle svigte. Sikkerhedstemperaturføle- 25 ren er derfor en garanti for, at der ikke sker en overhedning af det varme brugsvand.The presence of the safety temperature sensor. Checking the solenoid valve effectively ensures overheating of the water should one of the primary control measures fail. Therefore, the safety temperature sensor is a guarantee that the hot water does not overheat.
Fra EP-A-0 027 995 kendes et kombinationsanlæg, hvor vand cirkuleres ved hjælp af en pumpe fra et udløb, gennem en 30 varmeveksler og til et udløb. Varmeveksleren modtager også det gasformige kølemiddel fra kølesystemet. Anlægget omfatter en ventil, der styrer strømmen af vand fra varmeveksleren som en funktion af vandtemperaturerne ved indløbet og ved varmevekslerens udgang. En shuntforbindelse er 35 forbundet i parallel med serieforbindelsen af varmeveksler og ventil.EP-A-0 027 995 discloses a combination system in which water is circulated by means of a pump from an outlet, through a heat exchanger and to an outlet. The heat exchanger also receives the gaseous refrigerant from the cooling system. The system comprises a valve which controls the flow of water from the heat exchanger as a function of the water temperatures at the inlet and at the output of the heat exchanger. A shunt connection is connected in parallel with the series connection of heat exchanger and valve.
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Formålet med opfindelsen er at anvise et kombineret anlæg af den omhandlede art, som pålideligt styrer vandtemperaturen ved varmeanlæggets udløb.The object of the invention is to provide a combined plant of the kind in question which reliably controls the water temperature at the outlet of the heating system.
5 Dette opnås ifølge opfindelsen ved den i krav 1 anviste udformning.This is achieved according to the invention in the embodiment of claim 1.
Sammenbygningen af kompressoren og superheater-varmeveksleren til en unit begrænser installationsarbejdet, specielt 10 det antal rørforbindelser der skal udføres på montagestedet, og mindsker derved også muligheden for fejlinstallation. De nødvendige trykrørsforbindelser kan udføres på fabrikationsstedet (på fabriken). Sammenbygningen af varmeveksleren og kompressoren betyder endvidere, at antallet 15 af komponenter, der skal monteres på opstillingsstedet, bliver det mindst mulige. Af betydning er det endvidere, at en væsentlig del af det elektriske installationsarbejde kan færdiggøres fra fabriken.The assembly of the compressor and the superheater heat exchanger into a unit limits the installation work, in particular the number of pipe connections to be made at the installation site, thereby also reducing the possibility of fault installation. The necessary pressure pipe connections can be made at the manufacturing site (at the factory). Furthermore, the combination of the heat exchanger and the compressor means that the number of 15 components to be installed at the installation site will be the least possible. It is also important that a substantial part of the electrical installation work can be completed from the factory.
20 Opfindelsen skal forklares nærmere i forbindelse med tegningen, hvor fig. 1 viser et kombineret køle- og varmeanlæg ifølge opfindelsen i skematisk form, 25 fig. 2 et udsnit af samme, der viser anlæggets varmtvands-generator inklusive superheater-varmeveksleren, fig. 3 et elektrisk diagram, der skematisk viser forbindelsen mellem de forskellige temperaturfølere i anlæggets varmtvandsdel, og 30 fig. 4 et elektrisk diagram, der skematisk viser forbindelsen mellem en sikkerhedsswitch og et sikkerhedsrelæ, der udgør en del af anlæggets kontrolkredsløb.The invention will be explained in more detail in connection with the drawing, in which fig. 1 shows a combined cooling and heating system according to the invention in schematic form; FIG. 2 shows a section of the same showing the plant's hot water generator including the superheater heat exchanger; FIG. 3 is an electrical diagram showing schematically the connection between the various temperature sensors in the hot water part of the system; and FIG. 4 is an electrical diagram showing schematically the connection between a safety switch and a safety relay that forms part of the control circuit of the system.
35 i den på tegningen viste udførelsesform er det kombinerede køle- og varmeanlæg af den omtalte tredelte type. Det er imidlertid underforstået, at det beskrevne kontrolarrange- - 5 -35 in the embodiment shown in the drawing, the combined cooling and heating system is of the mentioned three-part type. However, it is understood that the control arrangement described - 5 -
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ment for superheater-varmeveksleren ikke er begrænset til denne specifikke udførelsesform men også kan indgå i andre sammenhænge. Det her beskrevne kombinerede køle- og varmeanlæg er vist i skematisk form i fig. 1. Anlæggets air-5 conditiondel består af en kompressorunit 10, en indendørs kølesektion 90 og en udendørs sektion 92. Varmtvandssystemet består af en varmtvandsbeholder (forrådsbeholder) 54 med tapperør 56, koldtvandstilløb 58 og varmtvandstilløb 60. Koldt- og varmtvandstilløbene 58 og 60 udgår fra en 10 varmtvandsgenerator i kompressoruniten 10.intended for the superheater heat exchanger is not limited to this specific embodiment but may also be included in other contexts. The combined cooling and heating system described here is shown in schematic form in FIG. 1. The air-5 conditioning part of the system consists of a compressor unit 10, an indoor cooling section 90 and an outdoor section 92. The hot water system consists of a hot water tank (storage tank) 54 with drain pipes 56, cold water inlet 58 and hot water inlet 60. The cold and hot water inlets 58 and 60 are deleted. from a 10 hot water generator in the compressor unit 10.
Kølekredsløbet (air-conditiondelen) består af en kompressor 12, en første rørforbindelse 14, en dæmper 16, en anden rørforbindelse 18, en superheater-varmeveksler 20, en tred-15 je rørforbindelse 22, en omstillingsventil 24, en fjerde rørforbindelse 26, en akkumulator 28 og en kompressorsugeslange 30. Superheater-varmevekslerens 20 kølespiral er angivet med 19. Fra omstillingsventilen 24 udgår en køleslange 32, der fortsætter til en indendørs anbragt varme-20 vekslerspiral 36. Denne varmevekslerspiral 36 er via en rørforbindelse 44 forbundet med en første ekspansionsventil 46, som igen via en anden rørforbindelse 48 er forbundet med en anden ekspansionsventil 50. Den anden ekspansionsventil 50 er gennem en rørforbindelse 52 forbundet med den 25 udendørs anbragte varmevekslerspiral 38. Denne er igen forbundet med omstillingsventilen 24 via en returforbindelse 34. Kølekredsløbet virker på i og for sig kendt måde ved overførsel af varmeenergi fra den indendørs anbragte varmevekslerspiral 36 til den udendørs anbragte varmevekslerspi-30 ral 38.The cooling circuit (the air-conditioning part) consists of a compressor 12, a first pipe connection 14, a damper 16, a second pipe connection 18, a superheater heat exchanger 20, a third 15 pipe connection 22, a switching valve 24, a fourth pipe connection 26, a accumulator 28 and a compressor suction hose 30. The cooling coil of the superheater heat exchanger 20 is indicated by 19. From the switching valve 24, a cooling hose 32 proceeds to an indoor heat exchanger coil 36. This heat exchanger coil 36 is connected to a first expansion valve via a pipe connection 44 46, which in turn is connected to a second expansion valve 50 via another pipe connection 48. The second expansion valve 50 is connected through a pipe connection 52 to the 25 externally arranged heat exchanger coil 38. This is again connected to the switch valve 24 via a return connection 34. The cooling circuit operates on known per se by transferring heat energy from the indoor application projected heat exchanger coil 36 to the externally disposed heat exchanger coil 38.
Varmtvandssystemet består som nævnt af en varmtvandsbeholder 54 med koldtvandstilløb 58. Endvidere findes en indløbstemperaturføler 62, en cirkulationspumpe 64 og en rør-35 forbindelse 66 mellem pumpen og superheater-varmeveksleren 20. Varmevekslerens 20 vandførende del er angivet med 67. En udløbstemperaturføler fra varmeveksleren er angivet med - 6 -The hot water system consists, as mentioned, of a hot water tank 54 with cold water inlet 58. Furthermore, there is an inlet temperature sensor 62, a circulation pump 64 and a pipe connection 66 between the pump and the superheater heat exchanger 20. The water exchange part of the heat exchanger 20 is indicated by 67. indicated by - 6 -
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68, en magnetventil 70 og en sikkerhedstemperaturføler (termostat) med 72. En shuntforbindelse over varmeveksleren er angivet med 74. Denne shuntforbindelse er forsynet med en gennemstrømningsbegrænserventil 76. Shunten forbin-5 der rørstykket 66 med afgangssiden af ventilen 70. Super-heater-varmeveksleren med tilhørende cirkulationspumpe og magnetventil og shuntforbindelse danner sammen med de allerede beskrevne kølekredskomponenter: kompressor, akkumula tor, dæmper og omstillingsventil, anlæggets kompressorunit 10 10.68, a solenoid valve 70 and a safety temperature sensor (thermostat) with 72. A shunt connection over the heat exchanger is indicated by 74. This shunt connection is provided with a flow restrictor valve 76. The shunt connects the pipe piece 66 to the outlet side of the valve 70. The super-heater heat exchanger with associated circulation pump and solenoid valve and shunt connection together with the cooling circuit components already described: compressor, accumulator, damper and switching valve, system compressor unit 10 10.
Den indendørs anbragte sektion 90 består foruden af varmeveksleren 32 af en køleluftblæser 40. Den udendørs sektion 92 består foruden af varmeveksleren 38 af en udendørs blæ-15 ser 42.In addition to the heat exchanger 32, the indoor section 90 consists of a cooling air blower 40. The outdoor section 92 consists in addition to the heat exchanger 38 of an outdoor blower 42.
I fig. 2 er anlæggets varmtvandssystem vist i mere detaljeret form. Som det fremgår af diagrammet, danner varmt-vandssystemet et lukket kredsløb, hvori vandet cirkulerer.In FIG. 2, the system's hot water system is shown in more detailed form. As shown in the diagram, the hot-water system forms a closed circuit in which the water circulates.
20 Koldtvandstilførslen sker gennem rørforbindelserne 58 og 63 og via en termisk reagerende kontakt 62 indsat mellem de to nævnte rørforbindelser. Cirkulationspumpen 64 er indsat i varmtvandskredsløbet og tjener til at cirkulere vandet gennem varmeveksleren 20 og varmtvandsbeholderen 54. Cirkula-25 tionspumpen er sluttet til koldtvandstilløbsrøret 63. Fra pumpen fortsætter vandet gennem en anden rørforbindelse 66 til varmeveksleren 20, hvis vandførende del (varmevekslerspiral) er angivet med 67. Varmevekslerspiralens afgangsside er sluttet til en tredje rørforbindelse 69, som fører 30 til magnetventilen 70. I selve rørforbindelsen 69 er indsat den omtalte udløbstemperaturføler 68. Shuntforbindelsen 74 er indsat mellem den anden og tredje rørforbindelse 66 henholdsvis 69. Gennemstrømningsbegrænserventilen 76 i shunten 74 er indrettet som en drøvleventil med en kalibre-35 ret gennemstrømningsdyse. Sikkerhedstemperaturføleren 72 er indsat i returforbindelsen 60 fra varmeveksleren.The cold water supply is made through the pipe connections 58 and 63 and via a thermally reactive contact 62 inserted between the two pipe connections mentioned. The circulation pump 64 is inserted into the hot water circuit and serves to circulate the water through the heat exchanger 20 and the hot water tank 54. The circulation pump is connected to the cold water supply pipe 63. From the pump, the water continues through another pipe connection 66 to the heat exchanger 20, the water conductor part ( The outlet side of the heat exchanger coil is connected to a third pipe connection 69 which leads 30 to the solenoid valve 70. Inserted in the pipe connection 69 is the said outlet temperature sensor 68. The shunt connection 74 is inserted between the second and third pipe connection 66 and 69 respectively. is arranged as a throttle valve with a calibrated flow nozzle. The safety temperature sensor 72 is inserted into the return connection 60 from the heat exchanger.
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Som det fremgår af diagrammet i fig. 2, er indløbstemperaturføleren 62 indrettet til at slutte en elektrisk forbindelse, når vandtemperaturen falder til 51,5°C eller derunder, og til at åbne (dvs. afbryde) den elektriske forbin-5 delse, når vandtemperaturen er på 60°C eller derover. Udløbstemperaturføleren 68 er indrettet til at slutte ved en temperatur på 57°C og til at åbne ved en temperatur på 37,8°C og derunder. Sikkerhedstemperaturføleren 72 er indrettet til at åbne ved en vandtemperatur på 83°C og til at 10 slutte ved en temperatur på 71°C og derunder.As shown in the diagram of FIG. 2, the inlet temperature sensor 62 is adapted to terminate an electrical connection when the water temperature drops to or below 51.5 ° C and to open (i.e., disconnect) the electrical connection when the water temperature is at 60 ° C or above. . The outlet temperature sensor 68 is adapted to terminate at a temperature of 57 ° C and to open at a temperature of 37.8 ° C and below. The safety temperature sensor 72 is adapted to open at a water temperature of 83 ° C and to terminate at a temperature of 71 ° C and below.
Det i fig. 3 viste elektriske diagram viser den operative sammenhæng mellem varmtvandssystemet og kølesystemet. Terminaler L-l og L-2 angiver strømforsyningen til det elek-15 triske kontrolkredsløb. Terminalen L-l er via en leder 100 forbundet med den ene side af et relæ 82 af den normalt åbne type. Relæet 82 styres af sikkerhedstemperaturføleren. Relæets 83 anden side er gennem en leder 101 forbundet med et kompressorrelæ CR og med indløbstemperaturføleren 62.The FIG. 3 shows the operational connection between the hot water system and the cooling system. Terminals L-1 and L-2 indicate the power supply to the electrical control circuit. The terminal L-1 is connected via a conductor 100 to one side of a relay 82 of the normally open type. The relay 82 is controlled by the safety temperature sensor. The other side of relay 83 is connected through a conductor 101 to a compressor relay CR and to the inlet temperature sensor 62.
20 Denne er indrettet som en termostatafbryder. Kompressorrelæet CR er gennem en leder 104 forbundet med en kompressor-kontaktor C og med pumpen 64. Den anden terminal L-2 er gennem en leder 103 forbundet med kompressorkontaktoren C, pumpen 64 og magnetventilspolen 70. Indløbstemperaturføle-25 ren (termostaten) 62 er forbundet med udløbstemperaturføleren (termostaten) 68 gennem en leder 105. En anden leder 107 forbinder udløbstemperaturføleren 68 med magnetventil-spolen 70.20 This is arranged as a thermostat switch. The compressor relay CR is connected through a conductor 104 to a compressor contactor C and to the pump 64. The second terminal L-2 is connected through a conductor 103 to the compressor contactor C, the pump 64 and the solenoid coil 70. The inlet temperature sensor (thermostat) 62 is connected to the outlet temperature sensor (thermostat) 68 through a conductor 105. Another conductor 107 connects the outlet temperature sensor 68 to the solenoid coil 70.
30 Det i fig. 4 viste elektriske diagram angiver forbindelsen mellem sikkerhedskontakten 72 og sikkerhedsrelæet 80. Strømforsyningen sker gennem terminaler L-3 og L-4. L-3 er forbundet med sikkerhedskontakten 72 gennem lederen 121, sikkerhedskontakten i serie med relæet gennem en leder 123 35 og relæet med terminalen L-4 via en leder 125.30 The FIG. 4 shows the connection between the safety switch 72 and the safety relay 80. The power supply is provided through terminals L-3 and L-4. L-3 is connected to the safety switch 72 through the conductor 121, the safety contact in series with the relay through a conductor 123 35 and the relay to the terminal L-4 via a conductor 125.
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DK 159738 BDK 159738 B
Ved behov for køleeffekt (eller varmeeffekt) sættes kølekompressoren 12 i gang. Dette sker ved aktivering af kompressorrelæet CR og forudsat, sikkerhedskontakten 72 samtidig har sluttet sikkerhedsrelæet 80. Er disse 5 forudsætninger opfyldt, aktiveres kompressorkontaktoren C og samtidig pumpen 64, hvorved køleprocessen starter.If a cooling effect (or heat effect) is needed, the cooling compressor 12 is started. This is done by activating the compressor relay CR and provided that the safety switch 72 has simultaneously connected the safety relay 80. If these 5 prerequisites are met, the compressor contactor C and at the same time the pump 64 is activated, whereby the cooling process starts.
Under disse omstændigheder cirkulerer pumpen 64 vand enten fra varmtvandsbeholderen 54 eller fra koldtvandstilløbet 58 via superheater- varmeveksleren og tilbage til varmt-10 vandsbeholderen 54 igen. Pumpen arbejder kontinuerligt i al den tid, kompressoren arbejder. Pumpen bevirker en tvungen vandcirkulation enten gennem varmeveksleren og shunten 74 i fællesskab eller gennem shunten 74 alene. I sidste tilfælde vil flowet være begrænset til et minimum 15 af drøvleventilen 76. Det reducerede flow gennem shunten har til formål at tillade en kontinuerlig registrering af vandtemperaturen i varmtvandsbeholderen ved hjælp af indløbstemperaturføleren 62.Under these circumstances, pump 64 circulates water either from the hot water tank 54 or from the cold water supply 58 via the superheater heat exchanger and back to the hot water tank 54 again. The pump operates continuously for all the time the compressor is operating. The pump causes a forced water circulation either through the heat exchanger and the shunt 74 jointly or through the shunt 74 alone. In the latter case, the flow will be limited to a minimum of 15 of the throttle valve 76. The reduced flow through the shunt is intended to allow continuous recording of the water temperature in the hot water tank by means of the inlet temperature sensor 62.
20 Magnetventilen 70 er normalt lukket. Ventilen er kun åben i de tilfælde, hvor alle tre temperaturfølere: indløbstem peraturføler, udløbstemperaturføler og sikkerhedstemperaturføler registrerer tilladte (dvs. acceptable) temperaturbetingelser. Disse betingelser er følgende: 1) Indløbs- 25 temperaturføleren registrerer en temperatur under 60°C, hvilket indikerer behov for yderligere opvarmning af van det. 2) Udløbstemperaturføleren registrerer en temperatur over 57°C, hvilket indikerer, at vandet fra varmeveksleren er tilstrækkelig opvarmet, og 3) sikkerhedstemperaturføle-30 ren, som normalt er lukket, registrerer en temperatur under 82°C, hvilket indikerer, at vandet fra varmeveksleren (og/ eller varmtvandsbeholderen) er under den tilladte maksimaltemperatur. Når disse tre nævnte betingelser er opfyldt, vil magnetventilen være åben, og vandet vil frit kunne cir-35 kulere gennem varmeveksleren og varmtvandsbeholderen. Hvis indløbstemperaturføleren registrerer en temperatur over 60°C, vil termostaten åbne. Derved afbrydes strømmen til - 9 -The solenoid valve 70 is normally closed. The valve is only open in cases where all three temperature sensors: inlet temperature sensor, outlet temperature sensor and safety temperature sensor register permissible (ie acceptable) temperature conditions. These conditions are as follows: 1) The inlet temperature sensor detects a temperature below 60 ° C, indicating the need for further heating of the van. 2) The outlet temperature sensor detects a temperature above 57 ° C, which indicates that the water from the heat exchanger is sufficiently heated, and 3) the safety temperature sensor, which is normally closed, detects a temperature below 82 ° C, which indicates that the water from the heat exchanger (and / or hot water tank) is below the maximum permissible temperature. When these three conditions are fulfilled, the solenoid valve will be open and the water will be free to circulate through the heat exchanger and the hot water tank. If the inlet temperature sensor detects a temperature above 60 ° C, the thermostat will open. This cuts off the power to - 9 -
DK 159738 BDK 159738 B
ventilens magnetspole, og ventilen lukker. Vandcirkulationen gennem varmeveksleren stoppes. Hvis udløbstemperatur-føleren registrerer en temperatur under 57°C, hvilket indikerer utilstrækkelig opvarmning i varmeveksleren, vil 5 strømmen til ventilspolen på lignende måde blive afbrudt, og ventilen dermed lukket. Først når temperaturen overstiger de nævnte 57°C, slutter termostaten, hvorved ventilen kan åbne. Termostaten åbner igen, når udløbstemperaturen er faldet til 37,8°C og derunder, dvs. at termostaten 10 har en indbygget hysterese. Indløbstermostaten er på tilsvarende måde indrettet til at åbne ved 60°C og slutte igen ved 51,5°C.the solenoid coil of the valve and the valve closes. The water circulation through the heat exchanger is stopped. If the outlet temperature sensor detects a temperature below 57 ° C, which indicates insufficient heating in the heat exchanger, the flow to the valve coil will similarly be interrupted, thus closing the valve. Only when the temperature exceeds said 57 ° C does the thermostat end, allowing the valve to open. The thermostat opens again when the outlet temperature has dropped to 37.8 ° C and below, ie. the thermostat 10 has a built-in hysteresis. The inlet thermostat is similarly arranged to open at 60 ° C and close again at 51.5 ° C.
Sikkerhedstemperaturføleren er indrettet til at åbne ved 15 82°C og slutte igen ved 71°C. Hvis vandtemperaturen ved udløbet fra varmeveksleren overstiger 82°C, vil sikkerhedstemperaturføleren afbryde det elektriske kredsløb, der aktiverer kompressorkontaktoren og pumpen, og samtidig vil magnetventilen lukke for vandgennemstrømningen. Sikker-20 hedstemperaturføleren forbliver åben, indtil vandtemperaturen er faldet til under 71°C.The safety temperature sensor is designed to open at 15 82 ° C and close again at 71 ° C. If the water temperature at the outlet of the heat exchanger exceeds 82 ° C, the safety temperature sensor will disconnect the electrical circuit activating the compressor contactor and pump, and at the same time the solenoid valve will close the water flow. The safety temperature sensor remains open until the water temperature has dropped below 71 ° C.
Det beskrevne kontrolsystem er forklaret i tilknytning til en varmtvandsgenerator (superheater-varmeveksler), der 25 udnytter overskudsvarmen fra et køleanlæg. Det er imidlertid underforstået, at det specielle superheater-varme-vekslerarrangement også kan anvendes i andre specifikke sammenhænge. Den tredelte opbygning med en separat kompressorunit, som også indeholder varmtvandsgeneratoren, en.The control system described is explained in connection with a superheater heat exchanger that utilizes the excess heat from a cooling system. However, it is understood that the particular superheater heat exchanger arrangement may also be used in other specific contexts. The three-part structure with a separate compressor unit, which also contains the hot water generator, one.
30 separat indendørs del og en separat udendørs del, betyder reducerede installationsomkostninger og reducerede vedligeholdelsesomkostninger. Ved at integrere superheater-varmeveksleren i kompressoruniten kan alle rørforbindelserne til varmeveksleren færdiggøres på fabrikationsstedet. Tidlige-35 re blev superheater-varmevekslere af den omtalte type solgt som tilbehør til air-conditionanlæg, hvorfor monteringen og herunder tilslutningen af vand og kølerør nødvendigvis måtte ske på stedet.30 separate indoor part and a separate outdoor part mean reduced installation costs and reduced maintenance costs. By integrating the superheater heat exchanger into the compressor unit, all the pipe connections to the heat exchanger can be completed at the manufacturing site. In the early 35's, superheater heat exchangers of the type mentioned were sold as accessories for air-conditioning systems, which is why the installation and including the connection of water and cooling pipes necessarily had to take place on site.
Claims (4)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39457682A | 1982-07-02 | 1982-07-02 | |
| US06/394,575 US4492092A (en) | 1982-07-02 | 1982-07-02 | Combination refrigerant circuit and hot water preheater |
| US39457682 | 1982-07-02 | ||
| US39457582 | 1982-07-02 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK303283D0 DK303283D0 (en) | 1983-07-01 |
| DK303283A DK303283A (en) | 1984-01-03 |
| DK159738B true DK159738B (en) | 1990-11-26 |
| DK159738C DK159738C (en) | 1991-04-22 |
Family
ID=27014794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK303283A DK159738C (en) | 1982-07-02 | 1983-07-01 | COMBINED COOLING AND HEATING SYSTEM |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0098788B1 (en) |
| AU (1) | AU551356B2 (en) |
| DE (1) | DE3377664D1 (en) |
| DK (1) | DK159738C (en) |
| ES (1) | ES523743A0 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2560975A1 (en) * | 1984-03-06 | 1985-09-13 | Collado Francois | AIR CONDITIONING SYSTEM USING A HEAT PUMP WITH STATIC EXTERNAL HEAT EXCHANGER AND REGULATION OF THE DRY VAPOR POINT BY AUTOMATIC VARIATION OF THE REGULATOR FLOW |
| DE9208889U1 (en) * | 1992-07-03 | 1993-11-11 | Bossert, Gerdi, 78052 Villingen-Schwenningen | Device for water heating |
| KR20110097203A (en) * | 2010-02-25 | 2011-08-31 | 삼성전자주식회사 | Heat pump system and control method thereof |
| ES2453740B1 (en) * | 2012-10-05 | 2015-03-31 | Ecoforest Geotermia, S.L. | SANITARY HOT WATER PRODUCTION SYSTEM. |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4141222A (en) * | 1977-04-27 | 1979-02-27 | Weatherking, Inc. | Energy recovery system for refrigeration systems |
| CA1126969A (en) * | 1979-10-25 | 1982-07-06 | Carrier Corporation | Refrigeration circuit heat reclaim method and apparatus |
| EP0038318B2 (en) * | 1980-04-10 | 1990-01-17 | Austria Email-EHT Aktiengesellschaft | Control system for controlling the heating of domestic water for a storage tank |
-
1983
- 1983-06-28 DE DE8383630107T patent/DE3377664D1/en not_active Expired
- 1983-06-28 EP EP19830630107 patent/EP0098788B1/en not_active Expired
- 1983-06-30 ES ES523743A patent/ES523743A0/en active Granted
- 1983-06-30 AU AU16451/83A patent/AU551356B2/en not_active Ceased
- 1983-07-01 DK DK303283A patent/DK159738C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0098788A3 (en) | 1984-11-14 |
| EP0098788A2 (en) | 1984-01-18 |
| ES8405131A1 (en) | 1984-06-01 |
| DE3377664D1 (en) | 1988-09-15 |
| DK303283A (en) | 1984-01-03 |
| AU551356B2 (en) | 1986-04-24 |
| ES523743A0 (en) | 1984-06-01 |
| AU1645183A (en) | 1984-01-05 |
| DK159738C (en) | 1991-04-22 |
| DK303283D0 (en) | 1983-07-01 |
| EP0098788B1 (en) | 1988-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |