EP3794282A1 - Gasventileinheit und verfahren zur modulierenden steuerung eines gasventils der gasventileinheit - Google Patents
Gasventileinheit und verfahren zur modulierenden steuerung eines gasventils der gasventileinheitInfo
- Publication number
- EP3794282A1 EP3794282A1 EP19766225.7A EP19766225A EP3794282A1 EP 3794282 A1 EP3794282 A1 EP 3794282A1 EP 19766225 A EP19766225 A EP 19766225A EP 3794282 A1 EP3794282 A1 EP 3794282A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas valve
- calibration value
- controller
- valve unit
- control
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/002—Regulating fuel supply using electronic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0041—Electrical or magnetic means for measuring valve parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
-
- 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
- F23N2227/00—Ignition or checking
- F23N2227/20—Calibrating devices
-
- 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
- F23N2235/24—Valve details
Definitions
- the invention relates to a gas valve unit and method for modulating control of an electronic gas valve of the gas valve unit.
- Electronically controlled gas valves for example for use in heating devices, are widely known from the prior art.
- certain manipulated values of the gas valve and thus its respective flow rate are determined via control values.
- the control values are calibrated via a calibration value or a calibration line, ie it is determined which control value stands for which flow rate.
- the calibration is initially carried out at the factory to a predetermined standard value. However, this can be associated with a gas valve
- Calibration value for example in the case of replacement parts, must be adjusted.
- the calibration value is adjusted by manually entering a service technician or barcode reading and transmission devices. Entering the calibration value is therefore prone to errors or device-intensive.
- the invention is therefore based on the object of providing a gas valve unit and a method for modulating control of an electronic gas valve of the gas valve unit, in which the calibration is carried out automatically by using a calibration value.
- a gas valve unit comprising an electronically controlled gas valve, a controller and a data memory.
- the gas valve is designed to modulate a gas flow, in particular for use on a heater.
- At least one calibration value for the gas valve is stored in the data memory, which represents a parameter for a predetermined gas flow rate for a specific control value of the gas valve.
- Data memories are connected via a digital communication line, for example via SPI or I2C.
- the control is also designed to electronically control the gas valve for its modulation using the calibration value.
- the burner control of a heater is preferably used as the control, which already has the necessary logic to carry out the digital communication with the data memory and the gas valve.
- the data memory is designed as a physical data memory, for example as an EEPROM, flash memory or RFID flash memory.
- EEPROM electrically erasable programmable read-only memory
- flash memory electrically erasable programmable read-only memory
- RFID flash memory electrically erasable programmable read-only memory
- An embodiment is also advantageous in which the data memory forms part of the gas valve. It is particularly favorable here to integrate the data memory into a cable plug device arranged on the gas valve.
- the cable connector represents the connection device for the plug with the cables for supply and control.
- the data storage is available as an internet-based data cloud, which is connected to the controller online.
- the control unit then calls up the calibration value via an Internet connection, which is available, for example, in the case of heaters connected to the Internet via LAN or WLAN.
- the gas valve unit is characterized in that the data memory is designed as a gateway microcontroller, which is arranged on the gas valve and transmits at least the calibration value to the controller and the gas valve via a bus system.
- a bus system for example, a CAN bus or LIN bus can be used as the bus system, and an RS-232 interface can be used as the interface.
- further data can also be transmitted via the bus system, for example the control values for the control values of the gas valve.
- the bus system can be provided in parallel to the regular cable lines for supplying and controlling the gas valve.
- the gas valve unit provides that the gateway microcontroller is provided as an additional second redundant data memory and is communication-connected to the control and the gas valve.
- the gateway microcontroller is provided in addition to the physical data store and can be used if the controller has no access to the physical data store or none
- the gateway microcontroller is preferably integrated in the gas valve.
- the gas valve unit is further characterized in that a predetermined standard calibration value is additionally stored directly in the control and can be used by the control to control the gas valve independently of the calibration value stored in the data memory. If none of the calibration values can be called up in the physical data memory or the gateway microcontroller, the control of the gas valve can take place on the basis of the control-internal standard calibration value.
- the disclosure further relates to a method for modulating control of the gas valve of the gas valve unit described above.
- the controller first tries to determine the calibration value, in particular when the system is started the physical data storage via the digital communication line. If this is not possible, the controller then reads the calibration value from the intermediate gateway microcontroller via the bus system and uses the calibration value to determine the control values for the gas valve Data cloud stored calibration value is adjusted and updated if necessary. The manufacturer can always provide the currently valid calibration value in the data cloud. The data cloud can not only be used as an update, but also as an alternative for the physical data storage or gateway microcontroller.
- Fig. 1 is a flowchart for the method for modulating control of the gas valve of the gas valve unit
- FIG. 1 an exemplary embodiment of the method for modulating the control of the gas valve of the gas valve unit on a heater is shown. At the system start of the heater and therefore the one to be controlled
- Gas valve is first checked whether the stored calibration value for the gas valve and its serial number can be read out from the physical data memory, for example an EEPROM or Flash RFID, integrated in the gas valve or its cable connector, for example. RFID memories can be read out by radio. If this succeeds, the read calibration value is optionally compared with the calibration value stored in the data cloud and updated if necessary. If no adjustment is possible, the control is activated with continue with the read calibration value, otherwise with the possibly more recent calibration value of the data cloud.
- the physical data memory for example an EEPROM or Flash RFID, integrated in the gas valve or its cable connector, for example.
- RFID memories can be read out by radio. If this succeeds, the read calibration value is optionally compared with the calibration value stored in the data cloud and updated if necessary. If no adjustment is possible, the control is activated with continue with the read calibration value, otherwise with the possibly more recent calibration value of the data cloud.
- control system accesses the standard calibration value stored in the control system and uses this for the control of the gas valve. Optionally, you can also try to retrieve the value stored in the data cloud (not shown).
- the calibration value can be retrieved from the gateway microcontroller, it is then compared again with the value stored in the data cloud, as described above.
- other data and values in particular the control value for the gas valve, can also be transmitted to the control system from the gateway microcontroller.
- the control is preferably formed by the burner control unit of the heater.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Feeding And Controlling Fuel (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018124915.2A DE102018124915A1 (de) | 2018-10-09 | 2018-10-09 | Gasventileinheit und Verfahren zur modulierenden Steuerung eines Gasventils der Gasventileinheit |
PCT/EP2019/073953 WO2020074192A1 (de) | 2018-10-09 | 2019-09-09 | Gasventileinheit und verfahren zur modulierenden steuerung eines gasventils der gasventileinheit |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3794282A1 true EP3794282A1 (de) | 2021-03-24 |
Family
ID=67928825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19766225.7A Pending EP3794282A1 (de) | 2018-10-09 | 2019-09-09 | Gasventileinheit und verfahren zur modulierenden steuerung eines gasventils der gasventileinheit |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3794282A1 (de) |
CN (1) | CN209511228U (de) |
DE (1) | DE102018124915A1 (de) |
WO (1) | WO2020074192A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4276356A1 (de) * | 2022-05-09 | 2023-11-15 | BDR Thermea Group B.V. | Verfahren zum steuern des betriebs einer verbrennungsanlage |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6279870B1 (en) * | 1998-03-27 | 2001-08-28 | Maxon Corporation | Intelligent valve actuator |
US7809473B2 (en) * | 2002-06-24 | 2010-10-05 | Mks Instruments, Inc. | Apparatus and method for pressure fluctuation insensitive mass flow control |
TW595080B (en) * | 2002-12-30 | 2004-06-21 | Metal Ind Res & Dev Ct | Embedded internet integrated chip controlled valve actuator |
US10031005B2 (en) * | 2012-09-25 | 2018-07-24 | Mks Instruments, Inc. | Method and apparatus for self verification of pressure-based mass flow controllers |
US10288282B2 (en) * | 2016-06-27 | 2019-05-14 | Honeywell International Inc. | Air/fuel commissioning of a combustion appliance |
-
2018
- 2018-10-09 DE DE102018124915.2A patent/DE102018124915A1/de active Pending
- 2018-12-06 CN CN201822042727.2U patent/CN209511228U/zh active Active
-
2019
- 2019-09-09 WO PCT/EP2019/073953 patent/WO2020074192A1/de unknown
- 2019-09-09 EP EP19766225.7A patent/EP3794282A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
CN209511228U (zh) | 2019-10-18 |
WO2020074192A1 (de) | 2020-04-16 |
DE102018124915A1 (de) | 2020-04-09 |
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