EP0981025A2 - Dispositif et procédé de réglage de vitesse de rotation d'un ventilateur d'un dispositif de chauffage à gaz, notamment une chaudière à gaz - Google Patents

Dispositif et procédé de réglage de vitesse de rotation d'un ventilateur d'un dispositif de chauffage à gaz, notamment une chaudière à gaz Download PDF

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Publication number
EP0981025A2
EP0981025A2 EP99112113A EP99112113A EP0981025A2 EP 0981025 A2 EP0981025 A2 EP 0981025A2 EP 99112113 A EP99112113 A EP 99112113A EP 99112113 A EP99112113 A EP 99112113A EP 0981025 A2 EP0981025 A2 EP 0981025A2
Authority
EP
European Patent Office
Prior art keywords
gas
length
heating device
speed
target
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
EP99112113A
Other languages
German (de)
English (en)
Other versions
EP0981025B1 (fr
EP0981025A3 (fr
Inventor
Jürgen Schwalme
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.)
Wolf GmbH
Original Assignee
Wolf 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
Priority claimed from DE19846207A external-priority patent/DE19846207C2/de
Application filed by Wolf GmbH filed Critical Wolf GmbH
Publication of EP0981025A2 publication Critical patent/EP0981025A2/fr
Publication of EP0981025A3 publication Critical patent/EP0981025A3/fr
Application granted granted Critical
Publication of EP0981025B1 publication Critical patent/EP0981025B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
    • F23N1/10—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught
    • F23N1/102—Regulating fuel supply conjointly with another medium, e.g. boiler water and with air supply or draught using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/08—Regulating air supply or draught by power-assisted systems
    • F23N3/082—Regulating air supply or draught by power-assisted systems using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/04—Memory
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/08—Microprocessor; Microcomputer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/06—Ventilators at the air intake
    • F23N2233/08—Ventilators at the air intake with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves

Definitions

  • the invention relates to a gas heating device and a Procedure for adjusting the speed of a fan Gas heating device, in particular a gas boiler, according to the respective preamble of independent claims 1 and 11.
  • modulating gas heaters i.e. Gas heaters where the amount of heat to be given off by the thermal bath in the form of hot water can be set or regulated
  • For fan-assisted Gas heaters can measure the air ratio, i.e. the amount of through the blower supplied air, be adjusted so that a Sets efficiency that is as high as possible.
  • the efficiency is not set too high as otherwise the exhaust gases will condense, causing damage due to corrosion in the gas boiler and / or in the connected air-exhaust system.
  • the flow resistance of the Air exhaust system by means of an adjustable aperture, such as in the exhaust manifold of the gas boiler.
  • An aperture whose Flow cross section is adjustable is from DE 197 11 687 A1 known. Such an aperture is very expensive to construct and therefore expensive.
  • the object of the present invention is a gas heating device and a method for operating such To provide a device that allows in a simple manner the air ratio, taking into account that specific to the end customer optimize the existing air-exhaust system.
  • the present object is achieved by the gas heating device according to the independent claim 1 and by the method according the independent process claim 11 solved.
  • An important aspect of the invention is in or on to provide the gas heating device with an electronic memory, the multiple target characteristics or some values of these target characteristics for the fan speed depending on the load and / or the gas flow of the gas heating device for Different lengths of the supply air and / or exhaust gas (pipe) line saves.
  • These target characteristics or their values are determined in the laboratory and stored in the memory. After installation the gas heater and the associated supply air and / or Flue gas pipe through the installer at the end customer the installer determines the specific length of the Line or lines measured and in an input device provided in or on the gas heating device entered. Depending on the installer The length entered is the target characteristic curve stored in the memory for the corresponding length or one of the entered Length approximate length as the target characteristic for the concrete Installation used by the end customer.
  • Another important aspect of the invention is in the memory several of the specified target characteristics or associated Store values, whereby in the delivery state of the gas heating device one of these target characteristics or the characteristic corresponding values as a benchmark for comparing the Actual fan speed with the target fan speed used becomes.
  • This factory setting of a target characteristic for the delivery state of the gas heating device achieved that even if the installer after assembly the gas heater should forget the specific length of the supply air and / or exhaust gas (pipe) line available at the end customer enter damage to the gas heating device or the exhaust pipe is prevented.
  • a characteristic curve for a length of the supply air and / or exhaust gas (pipe) line which has a length that is approximately in the middle between one permissible minimum length and a permissible maximum length lies.
  • the permissible minimum length is 1 m and the maximum allowable length is about 5 m, so would be preferred a target characteristic curve for the fan speed depending on the load or the gas flow of the gas heating device selected be that of the target characteristic for a supply air and / or Exhaust pipe corresponds to about 3 m.
  • the deviation of the fan speed from this is according to the invention to the mean of a length for the supply air and / or Flue gas (pipe) line preset target characteristic about half as high, typically +/- 10%, as in the known Default setting at which the target fan speed for the maximum permissible length of the exhaust pipe in the factory in delivery condition is set, here typically + 20%, and the installer has no or an incorrect exhaust orifice assembled.
  • Fig. 1 there are blower characteristics for the supply air blower (not a modulating gas heating device (not shown), a gas boiler.
  • On the X axis is that Load or the gas flow through the gas heater in Percent applied.
  • the fan speeds are on the Y axis of the gas heater per minute.
  • a first characteristic curve 2 shows the target fan speed for the specific gas heating device as a function of the load or the gas flow through the gas heating device for gas flows or Loads from 0% to 110% and represents a determined in the laboratory optimal blower characteristic for the gas heating device in question and an exhaust pipe with a length of im.
  • the target characteristic curve 3 shows a Laboratory-optimized characteristic curve for an exhaust pipe length of 2m
  • Characteristic curve 4 applies to an exhaust pipe length of 3m
  • the characteristic curve 5 applies to an exhaust pipe length of 4m
  • characteristic 6 applies finally for an exhaust pipe length of 5m.
  • the target blower characteristics 3, 4, 5 and 6 are in the above Sequence from curve to curve along the Y-axis shifted upwards compared to characteristic curve 2.
  • the course of the characteristic curves 3, 4, 5 and 6 corresponds however roughly the course of the characteristic curve 2 described.
  • the target fan speed for the target characteristic curve is 3 at a gas flow of 0%, about 1,400 revolutions per minute, and with a gas flow of 100% about 2,000 revolutions per minute.
  • the target characteristic curve 4 about 0% should 1,550 revolutions per minute, for 100% of the maximum gas flow about 2,200 revolutions per minute can be set.
  • target characteristic curve 5 about 1,680 revolutions apply at 0% per minute and for 100% about 2,400 revolutions per minute.
  • a device for adjustment is in the gas heating device the gas flow through the gas heating device or a device for adjusting the load on the gas heating device (not shown), an electronic scheme (not shown), like a thyristor actuator, for adjustment the speed of the fan, a device for determining the Speed of the fan (not shown), and a device for comparison of the actual fan speed with the target characteristic for the relevant exhaust pipe length, corresponding to Fig. 1, provided.
  • the gas heating device determines the device for determining the speed of the fan the gas heater the current speed of the fan and provides information corresponding to this speed a target / actual value comparison device.
  • the gas flow adjuster the gas heater provides the necessary Gas flow.
  • the actual speed of the fan is in the Delivery state of the target speed according to the factory preset characteristic curve 4 for the specific load or adjusted the specific gas flow. The changes Load or the gas flow, the fan speed in the described manner of the corresponding target speed adapted to the characteristic curve 4.
  • FIG. 2 is a block diagram of a gas heating device according to the invention shown.
  • the block diagram of a gas heater 20 shows a temperature comparison device 32, a temperature controller 31 generating a modulation current, an electrically controllable gas fitting or gas valve 30, a burner / heat exchanger 29, a storage and comparison device 28, a speed comparison device 42, a Blower regulator 41 and a blower 40.
  • the target temperature is obtained via a target temperature input 33 set on the temperature comparison device 32.
  • an actual value temperature measuring device (not shown) provided that the measured variable 39th the actual temperature at the burner / heat exchanger 29 an actual temperature input 34 of the temperature comparison device 32 supplies.
  • the temperature controller 31 via an output 35 of the temperature comparison device 32 a the temperature difference adequate differential signal supplied.
  • the exit 36 of the temperature controller 31 gives it a modulation current which increases if the actual temperature value is too low and reduced if the actual temperature value is too high becomes.
  • the output 36 of the temperature regulator which emits the modulation current 31 is with the input of the electrically controllable Gas valve connected, which has a gas valve, which is in the In the event of an increasing modulation current, it opens further and in In the case of a decreasing modulation current accordingly closes or the amount of gas supplied to the burner / heat exchanger 29 increased or decreased.
  • the temperature controller 31 at its output 36 also the modulation current Storage and comparison device 28 supplied.
  • the Speicherund Comparison device 28 has an electronic memory, preferably an EEPROM. In the electronic memory are those of a first target characteristic curve 21 and a second Target characteristic curve 22, a third target characteristic curve 23, a fourth Desired characteristic curve 24 and a fifth desired characteristic curve 25 corresponding Value pairs saved.
  • the target characteristic curves 21-25 give the target fan speed of the fan 40 as a function of from the temperature controller 31 to control the gas valve 30 emitted modulation current. So in the end also give the target characteristics shown in Fig. 2, the target fan speed as a function of gas flow to the burner of the gas heater on.
  • the target characteristic curve 21 shows an optimized one in the laboratory Characteristic for an exhaust pipe length of 1m
  • the characteristic 22 applies to an exhaust pipe length of 2m
  • characteristic curve 23 applies for an exhaust pipe length of 3 m
  • the characteristic curve 25 finally for one Exhaust pipe length of 5m in analogy to that shown in Fig. 1 Set characteristic curves for the fan speed as a function of Gas flow to the burner of the gas heater.
  • the storage and comparison device 28 detects it the line 37 delivered at the output of the temperature controller 31 Modulation current and determined in the delivery state of the gas heating device based on the target characteristic curve 23 for an exhaust pipe length of 3m assigned value pairs that the recorded Modulation current corresponding target fan speed (see Y axis, which is the target fan speed in revolutions per minute and the X axis, which shows the modulation current in mA).
  • the Storage and comparison device 28 performs a comparison of the detected or measured modulation current with the in it stored value pairs for the modulation current through, in Delivery condition of the gas heater based on the preset target characteristic curve 23 and gives a signal like a voltage or a current, starting at its output, that the setpoint fan speed corresponding to the modulation current actually recorded corresponds.
  • That from the storage and comparison device 28 set target signal is a target fan speed input 43 of the speed comparison device 42 supplied as the target size.
  • a measuring device on the blower 40 (not shown) provided the actual speed of the blower 40 detects or measures.
  • Measured variable 47 of the actual speed of the fan 40 becomes the actual fan speed input 44 fed to the speed comparison device 42.
  • Dependent on from the comparison result between target fan speed and The speed comparison device 42 gives the actual fan speed at its output 45 an output signal, such as a voltage or a current that represents the result of the comparison and controls the fan controller 41.
  • the blower regulator 41 it can be, for example, a thyristor actuator.
  • the output 46 of the blower regulator 41 is connected to the blower 40 electrically connected and causes the fan 40 to rotate that determined by the storage and comparison device 28 Target speed based on the target characteristic curve used or corresponding pairs of values.
  • the gas heater and the exhaust pipe installer measures the length of the exhaust pipe and after installation in the gas heating device according to the invention via an input device (not shown) enters. Deviates the length of the exhaust pipe measured by the installer from the exhaust pipe length preset in the delivery condition from 3m, then the entered value of the exhaust pipe length approximate pipe length or the corresponding Target fan characteristic curve in an analogous manner to adapt the actual speed of the fan to the target speed of the fan.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Flow Control (AREA)
EP99112113A 1998-08-19 1999-06-23 Dispositif et procédé de réglage de vitesse de rotation d'un ventilateur d'un dispositif de chauffage à gaz, notamment une chaudière à gaz Expired - Lifetime EP0981025B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19837637 1998-08-19
DE19837637 1998-08-19
DE19846207A DE19846207C2 (de) 1998-08-19 1998-10-07 Vorrichtung und Verfahren zur Einstellung der Drehzahl eines Gebläses einer Gasheizeinrichtung, wie insbesondere einer Gastherme
DE19846207 1998-10-07

Publications (3)

Publication Number Publication Date
EP0981025A2 true EP0981025A2 (fr) 2000-02-23
EP0981025A3 EP0981025A3 (fr) 2003-01-15
EP0981025B1 EP0981025B1 (fr) 2004-11-10

Family

ID=26048261

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112113A Expired - Lifetime EP0981025B1 (fr) 1998-08-19 1999-06-23 Dispositif et procédé de réglage de vitesse de rotation d'un ventilateur d'un dispositif de chauffage à gaz, notamment une chaudière à gaz

Country Status (2)

Country Link
EP (1) EP0981025B1 (fr)
AT (1) ATE282178T1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2824628A1 (fr) 2001-05-11 2002-11-15 Wilo Salmson Components Chaudiere a extraction de fumee
AT412367B (de) * 2002-09-02 2005-01-25 Vaillant Gmbh Verfahren zur anpassung der gebläsedrehzahl eines gebläseunterstützten heizgerätes
EP1519113A2 (fr) 2003-09-23 2005-03-30 Vaillant GmbH Procédé pour adapter la puissance de chauffage d'un appareil de chauffage à ventilation forcée aux pertes de pression individuelles d'une conduite d'amenée d'air frais et d'évacuation de gaz d'échappement
EP1701096A1 (fr) 2005-03-10 2006-09-13 Vaillant GmbH Procédé pour adapter la puissance de chauffage d'un appareil de chauffage à ventilation forcée aux pertes de pression individuelles d'une conduite d'amenée d'air frais et d'évacuation de gaz d'échappement
CN106768072A (zh) * 2017-01-25 2017-05-31 重庆华之龙汽车制冷系统有限公司 鼓风机综合检测电路以及综合检测系统和工作方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950689A1 (de) * 1979-12-17 1981-06-25 Servo-Instrument, in Deutschland Alleinvertrieb der BEAB-Regulatoren GmbH u. Co KG, 4050 Mönchengladbach Regelvorrichtung fuer die verbrennungsluftmenge einer feuerstaette

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2824628A1 (fr) 2001-05-11 2002-11-15 Wilo Salmson Components Chaudiere a extraction de fumee
AT412367B (de) * 2002-09-02 2005-01-25 Vaillant Gmbh Verfahren zur anpassung der gebläsedrehzahl eines gebläseunterstützten heizgerätes
DE10340194B4 (de) * 2002-09-02 2012-08-16 Vaillant Gmbh Verfahren zur Anpassung der Gebläsedrehzahl eines gebläseunterstützten Heizgerätes
EP1519113A2 (fr) 2003-09-23 2005-03-30 Vaillant GmbH Procédé pour adapter la puissance de chauffage d'un appareil de chauffage à ventilation forcée aux pertes de pression individuelles d'une conduite d'amenée d'air frais et d'évacuation de gaz d'échappement
AT412902B (de) * 2003-09-23 2005-08-25 Vaillant Gmbh Verfahren zur anpassung der geräteheizleistung eines gebläseunterstützten heizgerätes
EP1701096A1 (fr) 2005-03-10 2006-09-13 Vaillant GmbH Procédé pour adapter la puissance de chauffage d'un appareil de chauffage à ventilation forcée aux pertes de pression individuelles d'une conduite d'amenée d'air frais et d'évacuation de gaz d'échappement
CN106768072A (zh) * 2017-01-25 2017-05-31 重庆华之龙汽车制冷系统有限公司 鼓风机综合检测电路以及综合检测系统和工作方法
CN106768072B (zh) * 2017-01-25 2022-12-13 重庆华之龙汽车制冷系统有限公司 鼓风机综合检测电路以及综合检测系统和工作方法

Also Published As

Publication number Publication date
EP0981025B1 (fr) 2004-11-10
ATE282178T1 (de) 2004-11-15
EP0981025A3 (fr) 2003-01-15

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