EP1777466A2 - Méthode pour ajuster la charge partielle des installations de chauffage - Google Patents

Méthode pour ajuster la charge partielle des installations de chauffage Download PDF

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Publication number
EP1777466A2
EP1777466A2 EP06021683A EP06021683A EP1777466A2 EP 1777466 A2 EP1777466 A2 EP 1777466A2 EP 06021683 A EP06021683 A EP 06021683A EP 06021683 A EP06021683 A EP 06021683A EP 1777466 A2 EP1777466 A2 EP 1777466A2
Authority
EP
European Patent Office
Prior art keywords
heating
temperature
load
flow temperature
part load
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.)
Granted
Application number
EP06021683A
Other languages
German (de)
English (en)
Other versions
EP1777466B1 (fr
EP1777466A3 (fr
Inventor
Michael Klepka
Klaus Richter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vaillant GmbH
Original Assignee
Vaillant GmbH
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 Vaillant GmbH filed Critical Vaillant GmbH
Priority to AT06021683T priority Critical patent/ATE435402T1/de
Publication of EP1777466A2 publication Critical patent/EP1777466A2/fr
Publication of EP1777466A3 publication Critical patent/EP1777466A3/fr
Application granted granted Critical
Publication of EP1777466B1 publication Critical patent/EP1777466B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/254—Room temperature
    • 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
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/258—Outdoor temperature
    • 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
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • 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
    • F24H15/345—Control of fans, e.g. on-off control
    • F24H15/35—Control of the speed of fans

Definitions

  • the invention relates to a method for partial load adjustment in heating systems.
  • the power rating of a heater to be selected is determined essentially by the desired hot water comfort. So it is customary to provide a heating water capacity of 25 to 30 kW in a water heater with a storage volume of 200 1. If at the same time 150 m 2 of living space are to be heated, 10 kW of heating power are sufficient for this purpose. In order to take this circumstance into account, the maximum power for the heating mode can be set independently of the maximum power in service water mode for heaters. One then speaks of the set heating part load.
  • the height of the setting to be selected generally results from a heat demand calculation, in which the parameters to be heated are primarily the area to be heated, the volume of the room, the desired room temperature, as well as the type and design of insulation. Another factor influencing the heating part load to be selected is the outside temperature at which the desired room temperature is ensured. As a rule, the heating systems are set to a minimum outside temperature of -12 to -15 ° C.
  • the heater would then run permanently at the set maximum heating part load.
  • heaters are operated with external controllers, so-called weather-controlled controllers. These controllers calculate a flow temperature setpoint for the heating circuit as a function of the outside temperature. Alternatively or additionally, room temperature controllers preset a flow temperature setpoint for the heating circuit as a function of the deviation of the temperature of a temperature sensor located in the living space from the setpoint temperature.
  • Heating systems with fuel-operated burners are started according to the prior art with a predetermined partial load; this partial load is chosen so that the burner ignites as safely as possible. If a flame is detected, the burner is operated after a few seconds with the demand-driven heating part load until the flow temperature reaches its setpoint temperature.
  • the object of the present invention is to adjust the heating part setting before the intervention of the flow temperature control as needed automatically to the current heat demand of the system after the ignition phase.
  • heating part load is adjusted individually to the outside or room temperature before reaching the desired flow temperature.
  • the temperature rise of the flow is detected and determined from this the necessary heating part load.
  • the heating load is set in dependence on the last heating process, in particular the duration and the temperature rise.
  • the heating system 1 shows a heating system 1, to which a heating circuit 8 is connected with a radiator 14 as a heat consumer.
  • the heating system 1 has a burner 6, which is connected via a regulated blower 2 to an intake manifold 4.
  • the intake 4 opens into the ambient air.
  • the intake 4 also opens the gas line, which is acted upon by a gas fitting 3 coming from fuel gas.
  • Around the burner 6 around is a heat exchanger 7, which is connected to the heating circuit 8.
  • the heating system 1 has a control 11, which with the gas fitting 3, the controlled fan 2, the temperature sensor 9 and an external control device 12 to which an outside temperature sensor 13 is connected, connected.
  • the outside temperature sensor 13 sends via the external control 12 to the internal control 11, a signal for starting the device.
  • the controller 11 sets a predetermined speed for the Blower 2 and a defined flow rate through the gas valve 3 a.
  • the fuel gas-air mixture is ignited downstream of the burner 6, the hot exhaust gases cooled in the heat exchanger 7, so that the heat is transferred to the heating circuit 8.
  • the water located there is conveyed by the circulation pump 10.
  • the heat is released in the radiator 14, preferably in a room to be heated.
  • Figure 2 shows the heating curve a according to the prior art and the heating curve b according to the inventive method. According to the prior art, the burner is ignited with a predefined power at a time t 0 .
  • the heating part load is increased until time t 2, the maximum heating part load is reached.
  • the device is now operated with maximum heating part load, until the time t 3, the pre-actual temperature corresponds to the flow setpoint temperature. Now the heating part load is controlled in such a way that the flow temperature remains constant. This has the consequence that the heating part load decreases from the time t 3 .
  • the heating process ends.
  • the burner according to the invention is also ignited at the time t 0 . Also at time t 1 , the ignition phase is completed and transferred to the demand-based heating part load. For this purpose, from the time t 1 to the time t 2, the heating part load is lowered until from the time t 2, the heat demand-dependent heating part load is reached. Now, the heating system is operated at a constant power until the time t 5, the flow temperature is reached. From the time t 5 , the heating system is controlled so that the heating flow temperature remains constant. At time t 6 , the heating system is switched off. During this heating process, the output power is ⁇ t 0 t 6 P b t ⁇ dt ,
  • FIG. 3 shows the relationship between the outside temperature T a and the heating flow temperature T V. It can be seen that at very low outside temperatures, a high heating flow temperature is required. With increasing outside temperature, the heating flow temperature can be lowered.
  • FIG. 4 accordingly shows the relationship between the heating part load P and the outside temperature T a .
  • the heating part load can be reduced.
  • the heater is operated after the ignition phase before reaching the set flow temperature with a heating part load, which is dependent on the measured value of the outside temperature sensor 13.
  • the outside temperature sensor 13 is on the external control 12 to the controller 11 a reading.
  • the control calculates the necessary power to operate the burner and accordingly sets the gas flow rate of the gas valve 3 and the speed of the controlled fan 2 a.
  • Figure 5 shows a variant of the method according to the invention, in which the flow temperature T V is received. From the course of the flow temperature T V , the gradient T v determined. This is compared with a setpoint. If the gradient of the temperature rise of the flow temperature is smaller than the predetermined value, the heating part load is increased. If the gradient is greater, ie the water heats up faster than it should, the heating part load is reduced.
  • FIG. 6 shows a further variant of the method according to the invention and illustrates the change in the heating part load as a function of the duration of the last heating process (t 6 -t 0 ).
  • the lines c, d, e and f illustrate characteristics for predetermined temperature differences in the last heating process.
  • line c illustrates a heating process in which the flow temperature has been raised by 5 K
  • line f illustrates a heating process in which the flow temperature differs by 30 K from the minimum value to the setpoint during the heating process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Control Of Combustion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Central Heating Systems (AREA)
  • Regulation And Control Of Combustion (AREA)
EP06021683A 2005-10-24 2006-10-17 Méthode pour ajuster la charge partielle des installations de chauffage Active EP1777466B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT06021683T ATE435402T1 (de) 2005-10-24 2006-10-17 Verfahren zur teillasteinstellung bei heizungsanlagen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0172905A AT502405B1 (de) 2005-10-24 2005-10-24 Verfahren zur teillasteinstellung bei heizungsanlagen

Publications (3)

Publication Number Publication Date
EP1777466A2 true EP1777466A2 (fr) 2007-04-25
EP1777466A3 EP1777466A3 (fr) 2008-07-02
EP1777466B1 EP1777466B1 (fr) 2009-07-01

Family

ID=37691775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06021683A Active EP1777466B1 (fr) 2005-10-24 2006-10-17 Méthode pour ajuster la charge partielle des installations de chauffage

Country Status (5)

Country Link
EP (1) EP1777466B1 (fr)
AT (2) AT502405B1 (fr)
DE (2) DE102006048937A1 (fr)
DK (1) DK1777466T3 (fr)
ES (1) ES2328390T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113137764A (zh) * 2021-03-26 2021-07-20 浙江中广电器股份有限公司 一种热泵热水器动态节能控制方法、控制器及热水器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1248044A2 (fr) 2001-03-26 2002-10-09 Vaillant GmbH Procédé de démarrage d'une chaudière

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH692757A5 (de) * 1994-07-16 2002-10-15 Vaillant Gmbh Verfahren zum Steuern einer Heizungsanlage.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1248044A2 (fr) 2001-03-26 2002-10-09 Vaillant GmbH Procédé de démarrage d'une chaudière

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113137764A (zh) * 2021-03-26 2021-07-20 浙江中广电器股份有限公司 一种热泵热水器动态节能控制方法、控制器及热水器

Also Published As

Publication number Publication date
ES2328390T3 (es) 2009-11-12
AT502405A4 (de) 2007-03-15
DK1777466T3 (da) 2009-10-05
DE102006048937A1 (de) 2007-04-26
DE502006004114D1 (de) 2009-08-13
ATE435402T1 (de) 2009-07-15
EP1777466B1 (fr) 2009-07-01
EP1777466A3 (fr) 2008-07-02
AT502405B1 (de) 2007-03-15

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