Servo gas system, gas burner and method for operating the gas burner
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/02
G05D-016/20
F23N-001/02
F23N-001/00
F23N-005/18
출원번호
US-0446075
(2014-07-29)
등록번호
US-9927121
(2018-03-27)
우선권정보
EP-13178379 (2013-07-29)
발명자
/ 주소
Super, Willem
출원인 / 주소
Honeywell Technologies, Sarl
대리인 / 주소
Seager, Tufte & Wickhem, LLP
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
Servo gas system (11) for a gas burner (10), namely for controlling a pressure regulation valve (20) positioned in a gas duct (18) of the gas burner, thereby controlling a gas pressure within the gas duct (18) being present downstream of the pressure regulation valve (20) and thereby controlling a p
Servo gas system (11) for a gas burner (10), namely for controlling a pressure regulation valve (20) positioned in a gas duct (18) of the gas burner, thereby controlling a gas pressure within the gas duct (18) being present downstream of the pressure regulation valve (20) and thereby controlling a pressure difference between a pressure in a burner chamber (12) of the gas burner and said gas pressure within the gas duct (18), the servo gas system (11) comprising a static servo gas flow branch (28) and a dynamic servo gas flow branch (29) being connected in parallel, and a flow sensing element (30) being connected between the static servo gas flow branch (28) and the dynamic servo gas flow branch (29) and providing a signal used to control the pressure regulation valve (20) by an electric actuator (41).
대표청구항▼
1. A servo gas system for a gas burner, namely for controlling a pressure regulation valve positioned in a gas duct of the gas burner, thereby controlling a gas pressure within the gas duct being present downstream of the pressure regulation valve and thereby controlling a pressure difference betwee
1. A servo gas system for a gas burner, namely for controlling a pressure regulation valve positioned in a gas duct of the gas burner, thereby controlling a gas pressure within the gas duct being present downstream of the pressure regulation valve and thereby controlling a pressure difference between a pressure in a burner chamber of the gas burner and the gas pressure within the gas duct, the servo gas system comprising: a static servo gas flow branch and a dynamic servo gas flow branch connected in parallel and fluidly extending from the gas duct of the gas burner downstream of the pressure regulation valve, the dynamic servo gas flow branch having a pressure regulator for regulating a pressure in the dynamic servo gas flow branch downstream of the pressure regulator;a flow sensing element for sensing a flow between the static servo gas flow branch and the dynamic servo gas flow branch, the flow sensing element in fluid communication with the dynamic servo gas flow branch downstream of the pressure regulator; anda controller operatively coupled to the flow sensing element and an electric actuator of the pressure regulation valve of the gas duct, wherein the controller is configured to provide a control signal to the electric actuator for controlling the pressure regulation valve of the gas duct based, at least in part, on the flow sensed by the flow sensing element. 2. The servo gas system of claim 1, wherein the static servo gas flow branch comprises: a first flow restricting device;a second flow restricting device downstream of the first flow restricting device forming a first pressure zone therebetween, wherein the flow sensing element is in fluid communication with the first pressure zone. 3. The servo gas system of claim 2, wherein the dynamic servo gas flow branch comprises: a third flow restricting device downstream of the pressure regulator forming a second pressure zone therebetween, wherein the flow sensing element is in fluid communication with the second pressure zone and measures the flow between the first pressure zone of the static servo gas flow branch and the second pressure zone of the dynamic servo gas flow branch. 4. The servo gas system of claim 3, wherein the pressure regulator of the dynamic servo gas flow branch comprises a pneumatic pressure regulator. 5. The servo gas system of claim 4, wherein the pneumatic pressure regulator is in fluid communication with the pressure in the burner chamber of the gas burner, the gas pressure within the gas duct, and a reference pressure. 6. Servo gas system for a gas burner, namely for controlling a pressure regulation valve positioned in a gas duct of the gas burner, thereby controlling a gas pressure within the gas duct being present downstream of the pressure regulation valve and thereby controlling a pressure difference between a pressure in a burner chamber of the gas burner and said gas pressure within the gas duct, the servo gas system comprising: a static servo gas flow branch and a dynamic servo gas flow branch being connected in parallel,a flow sensing element being connected between the static servo gas flow branch and the dynamic servo gas flow branch and providing a signal used to control the pressure regulation valve by an electric actuator. 7. The servo gas system of claim 6, wherein the static servo gas flow branch comprises a first flow restricting device and downstream of the first flow restricting device a second flow restricting device thereby providing a first pressure zone upstream of the first flow restricting device in which the gas pressure to be controlled is present, a second pressure zone downstream of the second flow restricting device in which the pressure of the burner chamber is present, and an intermediate pressure zone. 8. The servo gas system of claim 7, wherein the first flow restricting device and the second flow restricting device of the static servo gas flow branch are both fixed flow restricting devices. 9. The servo gas system of claim 7, wherein the first flow restricting device or the second flow restricting device of the static servo gas flow branch is an adjustable flow restricting device, while the other flow restricting device of the static servo gas flow branch is a fixed flow restricting device. 10. The servo gas system of claim 7, wherein the dynamic gas flow branch comprises a pressure regulator and downstream of the pressure regulator a third flow restricting device thereby providing a dynamic gas flow branch first pressure zone upstream of the pressure regulator in which the gas pressure to be controlled is present, a dynamic gas flow branch second pressure zone downstream of the third flow restricting device in which the pressure of the pressure of the burner chamber is present, and a dynamic gas flow branch intermediate pressure zone. 11. The servo gas system of claim 10, wherein the third flow restricting device is a fixed flow restricting device. 12. The servo gas system of claim 10, wherein the third flow restricting device is an adjustable flow restricting device. 13. The servo gas system of claim 10, wherein the first pressure zone of the static servo gas flow branch is connected to the dynamic gas flow branch first pressure zone so that the same pressure is present within the same. 14. The servo gas system of claim 10, wherein the second pressure zone of the static servo gas flow branch is connected to the dynamic gas flow branch second pressure zone so that the same pressure is present within the same. 15. The servo gas system of claim 10, wherein the flow sensing element is connected between the intermediate pressure zone of the static servo gas flow branch and the dynamic gas flow branch intermediate pressure zone of the dynamic servo gas flow branch. 16. The servo gas system of claim 15, wherein another flow restricting device is connected in series to the flow sensing element. 17. The servo gas system of claim 10, wherein the pressure regulator of the dynamic servo gas flow branch is further connected to a reference pressure. 18. The servo gas system of claim 10, wherein another flow restricting device is connected in series to the pressure regulator. 19. A method for controlling a gas pressure in a gas duct of a gas burner via a pressure regulation valve positioned in the gas duct, wherein the gas burner includes a static servo gas flow branch and a dynamic servo gas flow branch situated in a parallel arrangement between the gas duct downstream of the pressure regulation valve and the gas burner, wherein the dynamic servo gas flow branch includes a pneumatic pressure regulator and wherein a flow sensor is connected between the static servo gas flow branch and the dynamic servo gas flow branch downstream of the pneumatic pressure regulator, the method comprising: receiving a signal from the flow sensor, the signal indicative of a flow between the static servo gas flow branch and the dynamic servo gas flow branch downstream of the pneumatic pressure regulator; andadjusting the pressure regulation valve based on the signal received from the flow sensor. 20. The method of claim 19, wherein the adjusting step includes sending a control signal to an electric actuator that then adjusts the pressure regulation valve based on the signal received from the flow sensor.
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이 특허에 인용된 특허 (3)
Simpson Donald C. (Norton MA), Electropneumatic transducer system.
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