公开(公告)号：WO2009155903A2

公开(公告)日：2009-12-30

申请号：PCT/DE2009/000875

申请日：2009-06-24

Applicant: PROMECON PROZESS- UND MESSTECHNIK CONRADS GMBH ,  CONRADS, Hans, Georg ,  HALM, Alexander

Inventor： CONRADS, Hans, Georg ,  HALM, Alexander

IPC: F23K1/00 ,  F23K3/02 ,  F23N1/02 ,  F23N5/18 ,  F23N5/20

CPC classification number: F23K1/00 ,  F23K3/02 ,  F23K2201/101 ,  F23K2201/505 ,  F23K2203/104 ,  F23N1/022 ,  F23N5/184 ,  F23N2005/181 ,  F23N2021/00 ,  F23N2027/02 ,  F23N2039/02 ,  G01F1/64 ,  G01F1/712 ,  Y02E20/348

Abstract: Die Erfindung betrifft eine Einrichtung und ein Verfahren zur Steuerung des Brennstoff-Luft-Verhältnisses bei der Verbrennung gemahlener Kohle in einer Kohlekraftwerksfeuerungsanlage, die Mittel zur pneumatischen Förderung der gemahlenen Kohle zu den Brennern der Kohlekraftwerksfeuerungsanlage sowie Mittel zur Zuführung von Verbrennungsluft zu den Brennern bzw. in den Feuerungsraum der Kohlekraftwerksfeuerungsanlage aufweist und bei der eine Steuerung der Verbrennungsluftmenge und der Tragluftmenge erfolgt. Ziel der Erfindung ist eine hohe Zuverlässigkeit der Steuerung bei geringem Wartungsaufwand der Luftmengenmesseinrichtungen zur Messung der Verbrennungsluft- und der Tragluftmengen. Erfindungsgemäß wird dieses Ziel mit einer Messeinrichtung zur Verbrennungsluftmengenmessung erreicht, die triboelektrische Effekte an in Strömungsrichtung der Verbrennungsluft hintereinander im Verbrennungsluftstrom angeordneten Sensoren nach der Korrelationsmessmethode auswertet und so die Strömungsgeschwindigkeit der Verbrennungsluft misst. Dazu werden in die angesaugte Frischluft zwischen 0,1 mg bis 10 mg feinkörnige Partikel je m 3 Luft mit einem Partikeldurchmesser zwischen 20 μm bis 200 μm eingetragen. Der Partikeleintrag in die angesaugte Frischluft erfolgt insbesondere nur während der Anfahrphase einer Kohlekraftwerksfeuerungsanlage. Bevorzugt erfolgt auch die Tragluftmengenmessung mittels einer triboelektrische Effekte an in Strömungsrichtung der Tragluft hintereinander im Tragluftstrom angeordneten Sensoren auswertenden Korrelationsmesseinrichtung.

Abstract translation: 本发明涉及的装置和用于控制Kohlekraftwerksfeuerungsanlage在燃烧研磨的煤的燃料 - 空气比，用于气动输送的研磨的煤到Kohlekraftwerksfeuerungsanlage的燃烧器的装置的方法和装置，用于提供燃烧用空气的燃烧器或在 包括Kohlekraftwerksfeuerungsanlage的燃烧室，并且其中能够进行燃烧的空气和载体空气量的量的控制。 本发明的目的是在低维护的空气量测量装置，用于测量所述燃烧空气的控制和空气的支撑量的高可靠性。 根据本发明，此目的是通过用于燃烧空气流量计，其摩擦电效应评估根据所述相关测量方法以连续地布置在所述燃烧空气在燃烧空气流量传感器的流动方向，从而测量所述燃烧空气的流率的测量装置来实现。 为了这个目的，细粒颗粒每空气的米3引入的新鲜空气中的20微米至200微米之间的颗粒直径为0.1毫克吸入至10mg。 粒子进入进入的新鲜空气只在启动Kohlekraftwerksfeuerungsanlage特别。 和通过的摩擦电效应装置承载空气流量测量优选在连续地布置在支撑空气流量传感器评估的相关性测量装置的承载空气的流动方向进行的。

公开(公告)号：EP2742287A1

公开(公告)日：2014-06-18

申请号：EP12768699.6

申请日：2012-07-11

Applicant: Promecon Prozess- Und Messtechnik Conrads GmbH

Inventor： CONRADS, Hans, Georg ,  HALM, Alexander ,  BOHM, Martin

IPC: F23K3/02 ,  F23N1/02 ,  F23N5/18 ,  G01F1/64 ,  G01F1/712

CPC classification number: F23N1/022 ,  F23K3/02 ,  F23K2203/104 ,  F23N5/184 ,  F23N2005/181 ,  G01F1/64 ,  G01F1/712 ,  G01F1/74 ,  Y02T50/677

Abstract: The invention relates to a device and to a method for controlling the fuel-air ratio in the combustion of ground coal in a firing system of a coal-fired power station, which comprises means for pneumatically conveying the ground coal to the burners (16) of the firing system of a coal-fired power station and means for supplying air for combustion to the burners (16) or into the furnace (15) of the firing system of a coal-fired power station, and in which the quantity of air for combustion and the quantity of carrier air are controlled. The aim of the invention is high reliability of the control of the fuel-air ratio, wherein the measurement of the quantity of air for combustion and the measurement of the quantity of carrier air are carried out according to the correlation measurement method by evaluating electrical signals obtained by means of sensors (11) arranged in the air stream. According to the invention, said aim is achieved by a measuring device for measuring the quantity of air, said device comprising a correlation measurement device (12) that evaluates signals generated by electrostatic induction on two sensors (11) arranged one after the other in the air stream,
in the air flow direction (s). An electrode (10) having an electrode contour, which has an average radius (r
m ) with 0.1 mm ≤ r
m ≤ 1.2 mm, is arranged in the flow direction (s) of the air in front of the sensors (11) at a distance (I) that is larger than 1 x the inner width of the flow cross-section of the conduit conveying the air and smaller than 10 x the inner width of the flow cross-section of the conduit conveying the air in the region of the sensors (11) in the flow cross-section of the conduit conveying the air. The counter-electrode (13, 25), which acts electrically with respect to the electrode (10), is arranged in the flow direction (s) of the air between the electrode (10) and the sensors (11), and the electrode (10) and the counter-electrode (13, 25) are connected to the poles of a high voltage source (9) having a voltage (U) of 12 kV ≤ U ≤ 20 kV. The electrode (10) and the counter-electrode (13, 25) are connected to the high voltage source (9) in particular only during the starting phase of the firing system of a coal-fired power station or at air flow rates

公开(公告)号：EP1459055A1

公开(公告)日：2004-09-22

申请号：EP02795004.7

申请日：2002-12-18

Applicant: Promecon Prozess- Und Messtechnik Conrads GmbH

Inventor： CONRADS, Hans, Georg ,  KLUPSCH, Volkhard ,  HALM, Alexander

IPC: G01N22/00 ,  G01F1/74

CPC classification number: G01F1/662 ,  G01F1/74 ,  G01N15/0656 ,  G01N22/00

Abstract: The invention relates to a microwave measuring device for detecting the charge of a two-phase flow with a gaseous carrier medium containing small and minuscule solid and /or fluid particles and for detecting gas contained in a fluid flow, preferably by means of waveguide carrier waves. A preferred application of the invention is the detection of solid particles contained in the flow of gas of voluminous pneumatic solid matter transport systems used, for example, for pulverized coal furnaces of coal power stations. The inventive microwave measuring device is provided with field rods, which protrude into the inside of the feed pipe, are arranged before and after a measuring section formed by a transmission antenna and a reception antenna, said rods interacting with the feed pipe made of conductive material as a resonator for microwaves injected into the feed pipe via the transmission antenna, whereby microwaves that differ from the injected microwaves in their plane of polarization and/or phase as a result of diffraction, superposition, and/or reflection outside the measuring section are essentially short-circuited in order to prevent the results of the measurement from being distorted. The inventive device has the particular advantage of being simple to build and easy to install even in voluminous and branched feed pipe systems.

公开(公告)号：EP2742287B1

公开(公告)日：2015-09-30

申请号：EP12768699.6

申请日：2012-07-11

Applicant: Promecon Prozess- und Messtechnik Conrads GmbH

Inventor： CONRADS, Hans, Georg ,  HALM, Alexander ,  BOHM, Martin

IPC: F23K3/02 ,  F23N1/02 ,  F23N5/18 ,  G01F1/64 ,  G01F1/712

CPC classification number: F23N1/022 ,  F23K3/02 ,  F23K2203/104 ,  F23N5/184 ,  F23N2005/181 ,  G01F1/64 ,  G01F1/712 ,  G01F1/74 ,  Y02T50/677

公开(公告)号：EP2315974A2

公开(公告)日：2011-05-04

申请号：EP09768827.9

申请日：2009-06-24

Applicant: Promecon Prozess- Und Messtechnik Conrads GmbH

Inventor： CONRADS, Hans, Georg ,  HALM, Alexander

IPC: F23K1/00 ,  F23K3/02 ,  F23N1/02 ,  F23N5/18 ,  F23N5/20 ,  G01P5/18

CPC classification number: F23K1/00 ,  F23K3/02 ,  F23K2201/101 ,  F23K2201/505 ,  F23K2203/104 ,  F23N1/022 ,  F23N5/184 ,  F23N2005/181 ,  F23N2021/00 ,  F23N2027/02 ,  F23N2039/02 ,  G01F1/64 ,  G01F1/712 ,  Y02E20/348

Abstract: The invention relates to a device and method for controlling the fuel-air ratio during the combustion of ground coal in the firing system of a coal power plant, which comprises means for the pneumatic delivery of ground coal to the burners of the firing system of the coal power plant and means for feeding combustion air to the burners or into the firing chamber of the firing system of the coal power plant and in which the amount of combustion air and the amount of carrier air is controlled. The aim of the invention is to achieve a high reliability of the control combined with low maintenance of the air mass measurement devices for measuring the amount of combustion air and carrier air. According to the invention, this aim is achieved by a measurement device for measuring the amount of combustion air which, according to the correlation measurement method, evaluates the triboelectric effects on sensors which are arranged in series in the direction of flow of the combustion air and thus measures the flow velocity of the combustion air. To this end, between 0.1 mg and 10 mg of fine-grained particles having a particle diameter of between 20 μm and 200 μm are introduced per m
3 air into the suctioned fresh air. The introduction of particles into the suctioned fresh air is carried out essentially during the starting phase of a firing system of a coal power plant. The measurement of the amount of carrier air is preferably carried out by means of a correlation measurement device that evaluates the triboelectric effects on sensors which are arranged in series in the carrier air stream in the direction of flow of the carrier air.

Abstract translation: 一种用于在发电厂接地煤的燃烧过程中控制燃料 - 空气比，包括燃烧器气动输送研磨的煤和进给燃烧空气到燃烧器，同时控制燃烧空气和载体的空气量的装置和方法。 控制与低维护的空气质量测量装置的组合的高可靠性得以实现。 这是由一个测量装置，用于测量燃烧空气其中，gemäß到相关性测量，评估上的传感器摩擦电效应的量来实现的。 0.1毫克和10毫克每立方米空气被引入到吸入新鲜空气20的妈妈和200妈妈之间的直径的细粒的颗粒，所有这一切都被击发系统的启动过程中执行之间，这是通过相关性测量求值完成做 上的传感器摩电效应，在载流子空气的流动方向以串联排列在载体气流。

公开(公告)号：EP1459055B1

公开(公告)日：2005-10-26

申请号：EP02795004.7

申请日：2002-12-18

Applicant: Promecon Prozess- Und Messtechnik Conrads GmbH

Inventor： CONRADS, Hans, Georg ,  KLUPSCH, Volkhard ,  HALM, Alexander

IPC: G01N22/00 ,  G01F1/74

CPC classification number: G01F1/662 ,  G01F1/74 ,  G01N15/0656 ,  G01N22/00

Abstract: The invention relates to a microwave measuring device for detecting the charge of a two-phase flow with a gaseous carrier medium containing small and minuscule solid and /or fluid particles and for detecting gas contained in a fluid flow, preferably by means of waveguide carrier waves. A preferred application of the invention is the detection of solid particles contained in the flow of gas of voluminous pneumatic solid matter transport systems used, for example, for pulverized coal furnaces of coal power stations. The inventive microwave measuring device is provided with field rods, which protrude into the inside of the feed pipe, are arranged before and after a measuring section formed by a transmission antenna and a reception antenna, said rods interacting with the feed pipe made of conductive material as a resonator for microwaves injected into the feed pipe via the transmission antenna, whereby microwaves that differ from the injected microwaves in their plane of polarization and/or phase as a result of diffraction, superposition, and/or reflection outside the measuring section are essentially short-circuited in order to prevent the results of the measurement from being distorted. The inventive device has the particular advantage of being simple to build and easy to install even in voluminous and branched feed pipe systems.