IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0472660
(2002-03-22)
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우선권정보 |
DE-0014405 (2001-03-23); DE-0041901 (2001-03-26) |
국제출원번호 |
PCT//EP02/03253
(2003-09-22)
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§371/§102 date |
20030922
(20030922)
|
국제공개번호 |
WO02//07752
(2002-10-03)
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발명자
/ 주소 |
|
출원인 / 주소 |
- GVP Gesellschaft zur Vermarktung der Porenbrennertechnik mbH
|
대리인 / 주소 |
Rankin, Hill, Porter &
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인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
▼
A method for setting an air ratio of a fuel/air mixture made from a gaseous fuel and air for the operation of a burner, including the steps of:a) determining the mass current of the fuel as a first measured value,b) determining a value for the determination of the Wobbe index of the fuel as a second
A method for setting an air ratio of a fuel/air mixture made from a gaseous fuel and air for the operation of a burner, including the steps of:a) determining the mass current of the fuel as a first measured value,b) determining a value for the determination of the Wobbe index of the fuel as a second measured value,c) determining a mass current of the air as a third measured value, andd) controlling the mass current of the air and/or the fuel in dependence on at least two of the measured values so that a specified air ratio λ of the fuel/air mixture is set.
대표청구항
▼
1. A method of setting the air ratio λ of a fuel/air mixture made from a gaseous fuel and air for operation of a burner (18), comprising the steps of:a) determining a mass current of the fuel as a first measured value, b) determining a value for determination of the Wobbe index of the fuel as a seco
1. A method of setting the air ratio λ of a fuel/air mixture made from a gaseous fuel and air for operation of a burner (18), comprising the steps of:a) determining a mass current of the fuel as a first measured value, b) determining a value for determination of the Wobbe index of the fuel as a second measured value, wherein the step of determining the second measured value comprises determining a viscosity of the fuel by guiding a part of the fuel through a capillary and by measuring a pressure drop or a speed of a pressure drop caused by the capillary, c) determining a mass current of the air as a third measured value, and d) controlling the mass current of the air and/or the fuel in dependence on at least two of the measured values so that a specified air ratio λ of the fuel/air mixture is set. 2. The method as defined in claim 1, wherein the control of the mass current of the air takes place with step d) in dependence on the measured values.3. The method as defined in claim 1, wherein the measured values are sent to a data processing device (4), processed in accordance with a specified algorithm, and, via the data processing device (4), the mass current of the fuel is regulated with a first dosing valve (9, 38) connected in the fuel current.4. The method as defined in claim 3, wherein the mass current of the air is controlled via a blower (15), an air valve, and/or a second dosing valve.5. The method as defined in claim 1, wherein the air ratio λ is regulated in dependence on a stability of a flame generated in the burner (18).6. The method as defined in claim 1, wherein the air ratio λ is regulated in dependence on a specified heating capacity of the burner (18).7. The method as defined in claim 1, wherein the air ratio λ is regulated so that emissions created during combustion are minimal.8. The method as defined in claim 1, wherein a mass current of the fuel is regulated based upon the first and second measured value so that a specified heat value of the fuel fed to the burner (18) per time unit is held primarily constant.9. The method as defined in claim 1, wherein a viscosity of the fuel or a function of the viscosity is determined as the second measured value.10. A device for performing the method of claim 1, comprising:a first mass current sensor for the determination of a first measured value, a device (5) for measuring the second measured value for the determination of the Wobbe index, the device (5) comprising a capillary (42) and a pressure measurement device (43) to measure one of: a pressure drop and the speed of a pressure drop caused by the capillary, and a first dosing valve (9), said first mass current sensor, said device, and said first dosing valve being connected a fuel feeder line (1), a second mass current sensor (13), said second mass current sensor being connected in an air feeder line (12, 28) for the determination of a third measured value, means (15) for controlling the mass current of the air, a data processing device (4) for regulation of the mass current of the fuel via the first dosing valve (9), wherein the mass current of the fuel is regulated in dependence on the first and second measured value so that a specified heat value of the fuel fed to the burner (18) per time unit is held primarily constant, and wherein the mass current of the air is controlled by the data processing device (4) in dependence on at least two of the measured values so that a specified air ratio λ can be set. 11. The device as defined in claim 10, wherein the mass current of the air can be controlled in dependence on the measured values.12. The device as defined in claim 10, wherein the device (5) for measuring the second measured value is a device for measuring a viscosity or a function of the viscosity.13. The device as defined in claim 10, wherein the means for regulating the mass current is equipped with a blower (15), an air valve, and/or a second dosing valve.14. The device as defined in claim 10, wherein a device is provided for recognition of a stability of a flame generated in the burner, and wherein the air ratio λ can be regulated via the data processing device (4) in dependence on a fourth measured value measured by the device.15. The device as defined in claim 10, wherein a device is provided for measuring a capacity of the burner (18), and wherein the air ratio λ can be regulated via the data processing device (4) in dependence on a fifth measured value measured by the device.16. The device as defined in claim 10, wherein a device is provided for measuring a pollution content of emissions, and wherein the air ratio λ can be regulated via the data processing device (4) in dependence on a sixth measured value measured by the device so that the pollution content created by the combustion is minimal.17. The device as defined in claim 10, wherein a blower is provided for air in a wall/floor furnace, with a blower housing (26), and blower wheel (27), with an air inlet (28) and an air outlet (29), and with a fuel feeder line (1) for the fuel, wherein the second mass current sensor (13) for determining the air mass current is located on the air inlet (28), which is functionally connected with a data processing device (4) and sends signals to said data processing device for calculation of a ratio of combustion medium to combustion air in dependence on a desired heating capacity.18. The device as defined in claim 10, wherein the second mass current sensor (13) is an electronic air mass current anemometer.19. The device as defined in claim 10, wherein a ring jet arrangement (30) is located on the air inlet (28).20. The device as defined in claim 19, wherein the second mass current sensor (13) is located on the ring jet arrangement (30).21. The device as defined in claim 20, wherein the second mass current sensor (13) is located in a bypass (31) which empties into a jet gap (32) of the ring jet arrangement (30).22. The device as defined in claim 21, wherein the ring jet arrangement (30) has a further jet gap (33) for the feeding in of fuel in addition to the jet gap (32) for the air mass measurement.23. The device as defined in claim 22, wherein a first mass current sensor (7) is located in the area of the further jet gap (33) which sends appropriate signals to the data processing device (4).24. The device as defined in claim 19, wherein the ring jet arrangement (30) is an integral part of the housing wall (34) on the air inlet (28) of the blower.25. The device as defined in claim 19, wherein the ring jet arrangement (30) surrounds a main current of the combustion air on the air inlet (28).26. The device as defined in claim 19, wherein the ring jet arrangement (30) is preceded by an input canal (35).27. The device as defined in claim 26, wherein the bypass (31) empties into the input canal (35).28. The device as defined in claim 27, wherein the bypass (31) empties into a ring gap (36) inside the input canal (35).29. The device as defined in claim 10, wherein a rotary valve/regulator valve (38) for the gas feed-in is an integral part of the housing.30. The device as defined in claim 29, wherein the rotary valve/regulator valve (38) for the gas feed-in is located on the suction side of the blower.31. The device as defined in claim 10, wherein an electronic motor commutation handles a mass current evaluation and regulates a speed of a blower motor.32. The device as defined in claim 10, wherein the electronic motor commutation handles mass current evaluation and regulates a speed of a blower motor and the gas feed-in.
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