EP3296634B1 - Verfahren zur konstanthaltung des dem brennerraum eines mobilen heizgerätes zugeführten verbrennungsluft-massenstroms und nach einem solchen verfahren arbeitendes heizgerät - Google Patents
Verfahren zur konstanthaltung des dem brennerraum eines mobilen heizgerätes zugeführten verbrennungsluft-massenstroms und nach einem solchen verfahren arbeitendes heizgerät Download PDFInfo
- Publication number
- EP3296634B1 EP3296634B1 EP17191209.0A EP17191209A EP3296634B1 EP 3296634 B1 EP3296634 B1 EP 3296634B1 EP 17191209 A EP17191209 A EP 17191209A EP 3296634 B1 EP3296634 B1 EP 3296634B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- combustion
- magnets
- temperature
- air blower
- blower motor
- 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.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 12
- 238000010438 heat treatment Methods 0.000 title claims 2
- 230000004907 flux Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 8
- 230000000875 corresponding effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
- F23N3/002—Regulating air supply or draught using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/21—Burners specially adapted for a particular use
- F23D2900/21002—Burners specially adapted for a particular use for use in car heating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2241/00—Applications
- F23N2241/14—Vehicle heating, the heat being derived otherwise than from the propulsion plant
Definitions
- the invention relates to a method for keeping constant the burner chamber of a mobile heater supplied combustion air mass flow according to the preamble of claim 1 and a working according to such a method mobile heater according to claim 4.
- this can be done approximately by setting or adjusting the speed of the fan to a fixed predetermined value determined by tests and thus keeping the volume of air supplied to the burner chamber constant.
- a mobile auxiliary heater with a control device which is adapted to control the Brennluftzutaxerie211 and / or the fuel supply in response to a signal that is supplied by a device, with the help of the density of air in the vicinity of the auxiliary heater based on the speed and the power consumption an on-board radiator or fan blower motor is determined.
- the additional heater blower motors it is necessary that one of these not belonging to the additional heater blower motors has a speed sensor and a control device, the or which respectively supplies a signal indicative of the electrical power consumption of the respective fan motor and a signal representing its associated speed.
- a disadvantage of this approach is that it not only makes demands on the structural design of the heater but also the radiator or ventilation fan assembly.
- At least one additional sensor serving to measure the rotational speed of the respective fan motor is required. Also, it is not guaranteed that the air density ratios in the area of the radiator or ventilation fan motor are constantly in a reproducible relationship with those in the area of the combustion air blower of the heater.
- WO 2005/116527 refers to a mobile heater and discloses all the features of the preamble of claim 1 and claim 4.
- the invention provides the laid down in the claims 1 and 4 features.
- the magnetic flux density B M in permanently excited motors depends to a large extent on the temperature of the permanent magnets.
- Ferrite magnets are known in which the magnetic flux density B M per 100 K (Kelvin) changes by about 20%; the temperature coefficient k M is therefore 2 * 10 -3 / K.
- the temperature dependence is linear with good accuracy.
- Magetmaterialien which can also be used in the invention, apply correspondingly different temperature coefficients, which the skilled artisan can easily refer to the data sheets of the manufacturer of the permanent magnets.
- the temperature T magnets of the permanent magnets or a closely correlated temperature is detected, from which by means of a computing unit with the temperature T magnets changing target motor current I Msoll is calculated according to equation (3), which then as a reference variable used for motor current control.
- T magnets of the permanent magnets can not be measured directly as a rule, it is preferably provided instead to use an existing anyway for safety reasons temperature sensor located near the combustion air blower motor or integrated in the housing electronics.
- the temperature difference ⁇ T magnets is determined for the individual heat outputs and thus the individual rated speeds during the development of the heater and stored as parameters in a microprocessor memory.
- control device 3 shown in greatly simplified form comprises a unit 5 consisting of controller and actuator, which at its output emits the motor current I M supplied to the combustion air blower motor 1. Its value is measured by a measuring element 6 whose output signal is fed back in a known manner with a negative sign to a setpoint / actual value comparator 8 of the control device 3.
- I Mset 0 I Mset 0 * 1 - T electronics + ⁇ T magnets - T 0 * 2 * 10 - 3 / K - 1 .
- K Kelvin
Landscapes
- 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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL17191209T PL3296634T3 (pl) | 2016-09-14 | 2017-09-14 | Sposób stałego utrzymywania przepływu masowego powietrza do spalania doprowadzonego do komory spalania ruchomego urządzenia grzewczego oraz urządzenia grzewcze działające zgodnie z takim sposobem |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202016105123.1U DE202016105123U1 (de) | 2016-09-14 | 2016-09-14 | Regelungsanordnung für einen durch Permanentmagnete erregten Brennluft-Gebläsemotor, der dem Brennerraum eines mobilen Heizgerätes Verbrennungsluft zuführt |
DE102016117323.1A DE102016117323B3 (de) | 2016-09-14 | 2016-09-14 | Verfahren zur Konstanthaltung des dem Brennerraum eines mobilen Heizgerätes zugeführten Verbrennungsluft-Massenstroms und nach einem solchen Verfahren arbeitendes Heizgerät |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3296634A1 EP3296634A1 (de) | 2018-03-21 |
EP3296634B1 true EP3296634B1 (de) | 2018-12-12 |
Family
ID=59887087
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17191209.0A Active EP3296634B1 (de) | 2016-09-14 | 2017-09-14 | Verfahren zur konstanthaltung des dem brennerraum eines mobilen heizgerätes zugeführten verbrennungsluft-massenstroms und nach einem solchen verfahren arbeitendes heizgerät |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3296634B1 (zh) |
CN (1) | CN107816733B (zh) |
ES (1) | ES2703449T3 (zh) |
PL (1) | PL3296634T3 (zh) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5512360A (en) * | 1978-07-10 | 1980-01-28 | Matsushita Electric Ind Co Ltd | Wind quantity safety device of forced suction and exhaust system gas combustion machine that use hall effect element |
DE10144404C2 (de) * | 2001-09-10 | 2003-09-18 | Webasto Thermosysteme Gmbh | Mobiles Zusatzheizgerät mit Ermittlung der Luftdichte |
DE102004025586A1 (de) * | 2004-05-25 | 2005-12-22 | Webasto Ag | Heizgerät und Verfahren zum Regeln eines Heizgeräts |
DE102010042013A1 (de) * | 2010-10-06 | 2012-04-12 | Robert Bosch Gmbh | Verfahren zur Einstellung einer Temperatur eines Sensorelements |
DE102012016606A1 (de) * | 2012-08-23 | 2014-02-27 | Robert Bosch Gmbh | Verfahren zur Regelung einer Heizeinrichtung und Heizeinrichtung |
US9631811B2 (en) * | 2012-11-08 | 2017-04-25 | Regal Beloit America, Inc. | Draft inducer for low power multistage furnaces utilizing an electronically commutated motor system and an associated method of use |
-
2017
- 2017-09-14 CN CN201710827748.2A patent/CN107816733B/zh not_active Expired - Fee Related
- 2017-09-14 EP EP17191209.0A patent/EP3296634B1/de active Active
- 2017-09-14 ES ES17191209T patent/ES2703449T3/es active Active
- 2017-09-14 PL PL17191209T patent/PL3296634T3/pl unknown
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
CN107816733B (zh) | 2020-03-03 |
PL3296634T3 (pl) | 2019-05-31 |
EP3296634A1 (de) | 2018-03-21 |
CN107816733A (zh) | 2018-03-20 |
ES2703449T3 (es) | 2019-03-08 |
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