DE3501789C1 - Heat pump heating installation - Google Patents
Heat pump heating installationInfo
- Publication number
- DE3501789C1 DE3501789C1 DE3501789A DE3501789A DE3501789C1 DE 3501789 C1 DE3501789 C1 DE 3501789C1 DE 3501789 A DE3501789 A DE 3501789A DE 3501789 A DE3501789 A DE 3501789A DE 3501789 C1 DE3501789 C1 DE 3501789C1
- Authority
- DE
- Germany
- Prior art keywords
- defrosting
- condenser
- heat pump
- evaporator
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract 9
- 238000009434 installation Methods 0.000 title abstract 2
- 238000010257 thawing Methods 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 230000001419 dependent effect Effects 0.000 claims 3
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 2
- 230000003111 delayed effect Effects 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
-
- 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
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/335—Control of pumps, e.g. on-off control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/38—Control of compressors of heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/385—Control of expansion valves of heat pumps
Landscapes
- 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)
- Defrosting Systems (AREA)
Abstract
Description
35 Ol 78935 Ol 789
' so daß Wärmeübertragungsmedium durch den Verflüs-'so that the heat transfer medium passes through the condenser
siger 4 strömt und dem Wärmeträgermedium des Wärmepumpenkreises 1 Wärme entzieht. Dabei kann der Druck mich dem Verflüssiger 4 keinen Wert erreichen, bei dem der Hochdruckwächter 15 anspricht. Das Schaltventil 7 ist geschlossen. Durch den PTC-Widerstand 13 fließt ein kleiner Strom, durch den der Widerstand 13 auf einer Temperatur gehalten ist, bei der sein Widerstand hoch ist, so daß das Schaltventil 7 nicht geöffnet wird.siger 4 flows and the heat transfer medium of the heat pump circuit 1 withdraws heat. The pressure cannot reach a value with the condenser 4, at which the high pressure monitor 15 responds. The switching valve 7 is closed. Through the PTC resistor 13, a small current flows through which the resistor 13 is kept at a temperature at which its Resistance is high so that the switching valve 7 is not opened.
Ist der Verdampfer 2 vereist, dann schaltet durch das Abtaubeginnsignal der Schalter 10 die Umwälzpumpe 9 ab, so daß dem Wärmeträgermedium des Wärmepumpenkreises 1 im Verflüssiger 4 keine Wärme entzogen wird. Gleichzeitig öffnet durch das Schließen des Schalters 12 das Schaltventil 7, so daß Wärmeträgermedium des Wärmepumpenkreises 1 auch durch die Zweigleitung 6 strömt. Das Wärmeträgermedium des Wärmepumpenkreises 1 gelangt also warm zum Verdampfer 2 und laut diesen ab.If the evaporator 2 is iced up, the switch 10 switches the circulating pump 9 through the start of defrosting signal from, so that the heat transfer medium of the heat pump circuit 1 in the condenser 4 no heat is withdrawn will. At the same time, by closing the switch 12, the switching valve 7 opens, so that the heat transfer medium of the heat pump circuit 1 also flows through the branch line 6. The heat transfer medium of the heat pump circuit So 1 gets warm to the evaporator 2 and according to this from.
Ist der Abtauvorgang beendet, dann schließt das Abtauendesignal den Schalter 10, so daß die Umwälzpumpe 9 anläuft. Aufgrund systembedingter Trägheit stellt sich jedoch nicht sofort ein Strom des Wärmeübertragungsmediums des Wärmeübertragungskreises 8 durch den Verflüssiger 4 ein. Gleichzeitig öffnet der Schalter 12.When the defrosting process has ended, the defrosting signal closes the switch 10, so that the circulating pump 9 starts up. However, due to system-related inertia, there is not an immediate flow of the heat transfer medium of the heat transfer circuit 8 through the condenser 4. At the same time the switch opens 12th
Das Schaltventil 7 schließt dadurch nicht sofort, da der PTC-Widerstand 13 in der Abtauzeit, in der er nicht an Spannung lag, so abkühlte, daß er beim Schließen des Schalters 12 zunächst einen sehr kleinen Widerstand •ν hat, so daß der durch ihn fließende Strom das Schaltventil 7 noch für eine gewisse Verzögerungszeit offenhält. Durch diesen Stromfluß erwärmt sich der PTC-Widerstand 13, so daß sein Widerstand nach der Verzögerungszeit so weit angestiegen ist, daß der ihn durchfließende Strom nicht mehr ausreicht, das Schaltventil 7 offenzuhalten. Das Schaltventil 7 schließt also nach der Verzögerungszeit. Die Verzögerungszeit beträgt beispielsweise 15 s. Während der Verzögerungszeit hat sich im Wärmeübertragungskreis 8 ein Strom des Wärmeübertragungsmediums aufgebaut, so daß dem Wärmeträgermedium des Wärmepumpenkreises 1 wieder Wärme entzogen wird. Beim Schließen des Schaltventils 7 kann sich also der Druck nach dem Verflüssiger 4 nicht so erhöhen, daß der Hochdruckwächter 15 den Verdichter abschaltet.The switching valve 7 does not close immediately because the PTC resistor 13 is not in the defrosting time was on voltage, so cooled that it initially had a very small resistance when the switch 12 was closed • has ν, so that the current flowing through it controls the switching valve 7 remains open for a certain delay time. The PTC resistor heats up as a result of this flow of current 13, so that its resistance has risen so far after the delay time that the one flowing through it Current is no longer sufficient to keep the switching valve 7 open. The switching valve 7 thus closes after Delay Time. The delay time is, for example, 15 s a flow of the heat transfer medium built up in the heat transfer circuit 8, so that the heat transfer medium of the heat pump circuit 1 heat is withdrawn again. When closing the switching valve 7, the pressure after the condenser 4 cannot increase to such an extent that the high-pressure monitor 15 stops the compressor turns off.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
5050
6060
6565
Claims (2)
gangs abschaltet. Die Wirkungsweise der beschriebenen Anlage ist et-When the heat transfer medium of the heat pump circuit 14 is switched, which extracts heat when the verse freezes, the defrosting process is prolonged. steamer 2 emits a start of defrosting signal and after defrosting, if the condenser is switched off, an end of defrosting signal is emitted. The start of defrosting causes pressure problems in the heat pump circuit. signal, the switch 10 is opened. At the end of defrosting - a warning signal corresponding to the type mentioned at the outset, the switch 10 is closed and the mepumps heating system switch is open in DE-OS 32 27 604 12. A high pressure switch 15 is prescribed. There the defrosting process is dependent on the outside temperature and the temperature at the 60 and the compressor 3 is switched off when the pressure behind the condenser 4 monitors the pressure when the pressure switches an output of the evaporator on and off. The permissible level exceeds, for example 25.5 bar, the object of the invention is to provide a heat pump. A re-heating system of the type mentioned at the beginning is connected to the high-pressure monitor 15, which precedes the compressor 3, during which the defrosting process is accelerated, a switch-off, for example for 20 minutes, without the heat pump being switched off at the end of the defrosting process tet holds,
gangs shut down. The mode of operation of the system described is
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3501789A DE3501789C1 (en) | 1985-01-21 | 1985-01-21 | Heat pump heating installation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3501789A DE3501789C1 (en) | 1985-01-21 | 1985-01-21 | Heat pump heating installation |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3501789C1 true DE3501789C1 (en) | 1986-09-25 |
Family
ID=6260305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3501789A Expired DE3501789C1 (en) | 1985-01-21 | 1985-01-21 | Heat pump heating installation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3501789C1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10131379A1 (en) * | 2001-06-28 | 2003-01-23 | Stiebel Eltron Gmbh & Co Kg | Method for defrosting air cooled heat exchangers has a control unit monitoring input fan and output fan speeds and adjusting to reach the temperature without a temperature sensor |
WO2005022055A1 (en) * | 2003-08-22 | 2005-03-10 | Carrier Corporation | Defrosting methodology for heat pump water heating system |
DE102006013587B4 (en) * | 2006-03-22 | 2016-06-23 | Stiebel Eltron Gmbh & Co. Kg | heat pump |
EP3480534A1 (en) * | 2017-11-02 | 2019-05-08 | Stiebel Eltron GmbH & Co. KG | Heating system and control method for a heating system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1816558B2 (en) * | 1968-12-23 | 1971-05-19 | ||
DE3227604A1 (en) * | 1981-07-29 | 1983-02-24 | Olsberg Gesellschaft für Produktion und Absatz mbH, 5790 Brilon | Automatic defrosting device for heat pump evaporators |
-
1985
- 1985-01-21 DE DE3501789A patent/DE3501789C1/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1816558B2 (en) * | 1968-12-23 | 1971-05-19 | ||
DE3227604A1 (en) * | 1981-07-29 | 1983-02-24 | Olsberg Gesellschaft für Produktion und Absatz mbH, 5790 Brilon | Automatic defrosting device for heat pump evaporators |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10131379A1 (en) * | 2001-06-28 | 2003-01-23 | Stiebel Eltron Gmbh & Co Kg | Method for defrosting air cooled heat exchangers has a control unit monitoring input fan and output fan speeds and adjusting to reach the temperature without a temperature sensor |
DE10131379B4 (en) * | 2001-06-28 | 2004-08-12 | Stiebel Eltron Gmbh & Co. Kg | Method for controlling the defrosting of an air / air heat exchanger |
WO2005022055A1 (en) * | 2003-08-22 | 2005-03-10 | Carrier Corporation | Defrosting methodology for heat pump water heating system |
US7028494B2 (en) | 2003-08-22 | 2006-04-18 | Carrier Corporation | Defrosting methodology for heat pump water heating system |
CN100458318C (en) * | 2003-08-22 | 2009-02-04 | 开利公司 | Defrosting methodology for heat pump water heating system |
DE102006013587B4 (en) * | 2006-03-22 | 2016-06-23 | Stiebel Eltron Gmbh & Co. Kg | heat pump |
EP3480534A1 (en) * | 2017-11-02 | 2019-05-08 | Stiebel Eltron GmbH & Co. KG | Heating system and control method for a heating system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of patent without earlier publication of application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8330 | Complete renunciation |