EP1164332A2 - Eingangsschaltung für einen Brenner - Google Patents
Eingangsschaltung für einen Brenner Download PDFInfo
- Publication number
- EP1164332A2 EP1164332A2 EP01106743A EP01106743A EP1164332A2 EP 1164332 A2 EP1164332 A2 EP 1164332A2 EP 01106743 A EP01106743 A EP 01106743A EP 01106743 A EP01106743 A EP 01106743A EP 1164332 A2 EP1164332 A2 EP 1164332A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- connections
- connection
- signal
- input circuit
- burner
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
- F23N5/203—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/26—Details
- F23N5/265—Details using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
Definitions
- the invention relates to an input circuit according to the preamble of claim 1.
- German industry standard 4791 An example of a relevant government standard is the German industry standard 4791.
- Plug connections are dispensed with and at the same time functionality, safety and Reliability of the burner control and the mentioned advantages of use remaining standardized plug connections are retained.
- the solutions for it should also be used for as many different burners and burner applications as possible can be used.
- the invention has for its object largely the above requirements to fulfill.
- the task mentioned is the input circuit with an input mentioned type in that one of the second connections is switched so that a received additional signal is fed to the burner control.
- the invention is based on the idea that the connections for receiving a Power request signal according to the standard also for the reception of an additional signal can be used. As explained below, the special ones Types of signal information to be received.
- the electricity supply at the first connections can be, for example AC voltage of up to 230 volts RMS Power supply network, but also a DC voltage of 30 volts from one external power supply.
- the second connection via an impedance to one is advantageous live first connection switched.
- the additional signal is generated, for example, by a switching device which, in addition to the second connection, also with the other live first Connection is connected. For example, zero voltage is on the latter. Instead of the other live first connection is sufficient for one connection to everyone equivalent point in the electrical circuit, be it outside or be it inside the Brenners. The actuation of the switching device thus leaves the voltage on the second Tilt the connection from the first level to another level.
- the second connection to the input of the Automatic firing devices switched.
- the additional signal can thus be fed to a central processing unit in which runs a program that determines the behavior of the burner control.
- the program can be designed so that the burner control unit also Control or regulation of the modulated actuator for the fuel supply and a modulated actuator for the air supply.
- the driver is an FET.
- Part of the burner control is then also, for example, in front Loss of voltage of safe memory, like an EEPROM.
- a fault message is in the Memory held until you can determine the cause.
- the invention provides a solution in which the additional signal is an unlock signal is.
- the burner control can be designed so that it receives simultaneously the power request signal and the unlock signal to the second Connections recognized. Because of the nature of these two signals, this need not be the case. So takes a while, during burner operation, the unlock signal given by mistake is typical so short that considering a typical power request signal it is the Burner effect not affected. An unlock signal is really intended for that Unlocking, the burner does not work and is a loss of Power request signal irrelevant.
- the additional signal is a power request signal.
- a second temperature signal which is an increased one Expresses performance requirement.
- This is a first temperature signal generated if, for example, the boiler temperature falls below a first value. The burner then ignites and works at a first power level. But should the boiler temperature drops so quickly due to a high heat requirement that despite active burner falls below a lower, second boiler temperature, then generates the additional signal which causes the burner to operate on a second work at a higher level of performance.
- the only drawing figure shows parts of a burner including one Input circuit.
- the input circuit 9 contains first connections for it to Electricity supply network to be connected, namely a connection 1a for the voltage line, a connection 1b for the earth line and a connection 1c for the defined neutral line.
- the first connections feed one DC voltage source 10.
- Second connections 2a and 2b should be connected to a thermal switch 11 become.
- the power request signals are received via a line 12 Automatic burner control 13 supplied.
- the automatic burner control 13 can be operated by means of relays 14a, 15a, 16a, which switch 14b, 15b, 16b, output signals to some connections. Third connections 3a, 3b, 3c and 3d, 3e, 3f actuate a blower motor 17 for the air supply, respectively a valve drive 18 for the gas supply.
- a signal is fed to the automatic firing device 13 via an amplifier 19, which represents the presence of a flame.
- a connection 4a is for this an evaluation circuit, not shown, for an ionization electrode 20 is connected.
- a UV sensor 21 is attached to connections 4b and 4c.
- a connector 5 can actuate an alarm lamp 22 in the event of a fault.
- On Connection 6 conveys an operating time signal which is fed to a counter 23.
- connections include in particular 7a, 7b, 7c for the actuation of a Ignition device 24. More generally, connections 8a to 81 are present, optional on a gas pressure meter, additional drives for valves or flaps, an oil monitor and an oil preheater can be connected.
- the burner control 13 are connected via some lines, not shown further information about the state of the input circuit is supplied. That's how it is Operating time signal not only for connection 6, but also for the burner control 13 communicated. This is irrelevant to the invention.
- the burner control 13 contains a central processing unit 25 and one Memory 26, which is designed as an EEPROM.
- a program runs that fulfills its tasks. For example, reaches one Fault message in the sense of a signal from the amplifier 19 that no flame is present, the central processing unit 25, it stores this event in the Memory 26.
- the relay 14a, 15a, 16a actuates the valve drive 18 stopped so that the fuel valve is closed by a spring, not shown becomes.
- the alarm lamp 22 is also activated via the connection 5.
- unlocking switch 27 is on one side the zero voltage, in the case shown at the first connection 1c. On the other hand he connected to the second port 2a.
- unlocking switch 27 is not actuated and the second one is located Connection 2a through a resistor 28, a fuse 29 and the first Connection 1a on the power line. This voltage at the second connection 2a is fed to the automatic firing device 13 through a line 30.
- the burner control 13 determines on the basis of the voltage which it only when the temperature switch 11 is closed through the connection 2b via the line 12 is supplied whether the burner should work or not.
- a diode bridge with diodes 31a and 31b is arranged for processing the signal on the line 30 in the automatic firing unit 13 .
- the DC voltage source 10 generates a DC voltage of 5 volts across the diode bridge. Their The reference potential is almost equal to the zero voltage.
- Both line 30 and one Drivers 32 are connected to the tap of the diode bridge. The output of the driver 32 is connected to the central processing unit 25.
- the voltage at connection 1 a changes with typical 230 volt RMS compared to Zero voltage. Without actuation of the unlocking switch 27, a large one positive voltage at terminal 1a to a current which is through the resistor 28, the line 30 and the diode 31a flow away into the DC voltage source 10.
- the Voltage at the high-resistance input of driver 32 is thus kept at 5 volts.
- the voltage at connection 1 a is very negative, then a current flows out of the DC source 10 instead through diode 31b, and takes the rest reverse path. This time the voltage at the input of driver 32 is 0 volts.
- the central processing unit 25 asks the signal digitized in this way at the output of the Driver 32 regularly during a whole period of the mains voltage of 50 Hertz from. Approximately half of the values correspond to 5 volts.
- the line 30 is open Zero voltage maintained. This is very little below the reference potential of the DC voltage source 10. A current flows through the diode 31b, and the input of the Driver 32 is constantly at 0 volts. The values in the central processing unit 25 correspond to all 0 volts.
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)
Abstract
Description
Claims (7)
- Eingangsschaltung (9) für einen Brenner,
welcher ein Stellglied (18) für die Brennstoffzufuhr,
einen Feuerungsautomaten (13), welcher das Stellglied (18) auf Empfang eines Leistungsanforderungssignals schrittweise oder kontinuierlich stellt und auf Empfang einer Störungsmeldung bis zum Empfang eines Entriegelungssignals schließt, und einen Flammenüberwachungsfühler (20) aufweist,
mit ersten Anschlüssen (1a, 1b, 1c) für die Elektrizitätsversorgung,
mit zweiten Anschlüssen (2a, 2b) für den Empfang eines Leistungsanforderungssignals,
mit dritten Anschlüssen (3a, 3b, 3c, 3d, 3e, 3f) für die Abgabe eines Stellsignals,
mit vierten Anschlüssen (4a, 4b, 4c) für den Empfang einer Störungsmeldung und mit weiteren Anschlüssen (5, 6, 7a, 7b, 7c, 8a, 8b, 8c, 8d, 8e, 8f, 8g, 8h, 81, 8j, 8k, 81) für den Empfang und / oder der Abgabe von weiteren Signalen,
dadurch gekennzeichnet, dass
einer der zweiten Anschlüsse (2a) so geschaltet ist, dass ein empfangenes Zusatzsignal dem Feuerungsautomaten (13) zugeführt wird. - Eingangsschaltung nach Anspruch 1,
dadurch gekennzeichnet, dass
der zweite Anschluss (2a) über eine Impedanz (28) an einen spannungsführenden ersten Anschluss (1a) geschaltet ist. - Eingangsschaltung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass
der zweite Anschluss (2a) an den Eingang des Feuerungsautomaten (13) geschaltet ist. - Eingangsschaltung nach Anspruch 3,
dadurch gekennzeichnet, dass
eine Diodenbrücke an den Ausgang einer Gleichspannungsquelle (10) geschaltet ist und
der zweite Anschluss (2a) an den Abgriff der Diodenbrücke geschaltet ist. - Eingangsschaltung nach Anspruch 3 oder 4,
dadurch gekennzeichnet, dass
der zweite Anschluss (2a) an den Eingang eines Treibers (32) geschaltet ist und
der Ausgang des Treibers (32) an eine Zentralverarbeitungseinheit (25) geschaltet ist. - Eingangsschaltung nach einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass
das Zusatzsignal ein Entriegelungssignal ist. - Eingangsschaltung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass
das Zusatzsignal ein Leistungsanforderungssignal ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10028989A DE10028989A1 (de) | 2000-06-16 | 2000-06-16 | Eingangsschaltung für einen Brenner |
DE10028989 | 2000-06-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1164332A2 true EP1164332A2 (de) | 2001-12-19 |
EP1164332A3 EP1164332A3 (de) | 2004-04-07 |
EP1164332B1 EP1164332B1 (de) | 2006-07-26 |
Family
ID=7645506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01106743A Expired - Lifetime EP1164332B1 (de) | 2000-06-16 | 2001-03-17 | Eingangsschaltung für einen Brenner |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1164332B1 (de) |
DE (2) | DE10028989A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004033964A1 (de) * | 2002-10-08 | 2004-04-22 | Enginion Ag | Feuerungsautomat |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3841084A1 (de) * | 1987-12-08 | 1989-06-22 | Vaillant Joh Gmbh & Co | Feuerungsautomat |
EP0321926A1 (de) * | 1987-12-21 | 1989-06-28 | Johnson Service Company | Regler auf Mikroprozessorbasis mit synchronem Rücksetzen |
DE4342991A1 (de) * | 1993-12-16 | 1995-06-22 | Bosch Gmbh Robert | Verfahren zum Überwachen wenigstens einer sicherheitsrelevanten Funktion eines Gerätes |
EP0751350A2 (de) * | 1995-06-29 | 1997-01-02 | ELCO KLÖCKNER HEIZTECHNIK GmbH | Feuerungsanlage sowie Verfahren zum Regeln, Steuern und/oder Überwachen einer Feuerungsanlage |
EP0803680A2 (de) * | 1996-04-23 | 1997-10-29 | Robert Bosch Gmbh | Schaltungsanordnung zum Überwachen eins brennstoffbeheizten Gerätes |
-
2000
- 2000-06-16 DE DE10028989A patent/DE10028989A1/de not_active Withdrawn
-
2001
- 2001-03-17 EP EP01106743A patent/EP1164332B1/de not_active Expired - Lifetime
- 2001-03-17 DE DE50110524T patent/DE50110524D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3841084A1 (de) * | 1987-12-08 | 1989-06-22 | Vaillant Joh Gmbh & Co | Feuerungsautomat |
EP0321926A1 (de) * | 1987-12-21 | 1989-06-28 | Johnson Service Company | Regler auf Mikroprozessorbasis mit synchronem Rücksetzen |
DE4342991A1 (de) * | 1993-12-16 | 1995-06-22 | Bosch Gmbh Robert | Verfahren zum Überwachen wenigstens einer sicherheitsrelevanten Funktion eines Gerätes |
EP0751350A2 (de) * | 1995-06-29 | 1997-01-02 | ELCO KLÖCKNER HEIZTECHNIK GmbH | Feuerungsanlage sowie Verfahren zum Regeln, Steuern und/oder Überwachen einer Feuerungsanlage |
EP0803680A2 (de) * | 1996-04-23 | 1997-10-29 | Robert Bosch Gmbh | Schaltungsanordnung zum Überwachen eins brennstoffbeheizten Gerätes |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004033964A1 (de) * | 2002-10-08 | 2004-04-22 | Enginion Ag | Feuerungsautomat |
Also Published As
Publication number | Publication date |
---|---|
DE10028989A1 (de) | 2001-12-20 |
EP1164332A3 (de) | 2004-04-07 |
EP1164332B1 (de) | 2006-07-26 |
DE50110524D1 (de) | 2006-09-07 |
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