DE102004020287A1 - Apparatus for determining the energy content of a gas flowing in a pipeline comprises an analysis unit, a flow meter and a mounting pipe assembled into a single unit - Google Patents
Apparatus for determining the energy content of a gas flowing in a pipeline comprises an analysis unit, a flow meter and a mounting pipe assembled into a single unit Download PDFInfo
- Publication number
- DE102004020287A1 DE102004020287A1 DE200410020287 DE102004020287A DE102004020287A1 DE 102004020287 A1 DE102004020287 A1 DE 102004020287A1 DE 200410020287 DE200410020287 DE 200410020287 DE 102004020287 A DE102004020287 A DE 102004020287A DE 102004020287 A1 DE102004020287 A1 DE 102004020287A1
- Authority
- DE
- Germany
- Prior art keywords
- flow measuring
- measuring device
- gas
- microprocessor
- installation tube
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/40—Details of construction of the flow constriction devices
- G01F1/42—Orifices or nozzles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
- G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
Abstract
Description
Die Erfindung bezieht sich auf eine Vorrichtung zur Bestimmung des Energieinhaltes von einem Gas gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to a device for determining the energy content of a gas according to the generic term of claim 1
Eine solche Vorrichtung kommt bei der Ermittlung des Energieinhaltes von einem Gas, insbesondere von Erdgas zwischen der Förderquelle und dem jeweiligen Endverbrauch zur Anwendungen. Der Preis von Erdgas richtet sich nicht nach dem geförderten Volumen, sondern nach der Energie, die im geförderten Erdgas enthaltenen ist. Der Preis von Erdgas, das an Endabnehmer in der Industrie und in den Privatbereichen weiterverkauft wird, wird in gleicher Weise ermittelt. Der Ermittlung des Energieinhaltes von Erdgas kommt daher eine wirtschaftlich wesentliche Bedeutung zu.A such device comes in the determination of the energy content from a gas, in particular natural gas between the source of supply and the respective end use for applications. The price of natural gas does not depend on the sponsored Volume, but according to the energy contained in the extracted natural gas is. The price of natural gas sold to end users in the industry and will be resold in the private areas, in the same way determined. The determination of the energy content of natural gas therefore comes an economically significant importance.
Bei Erdgas handelt es sich um eine Mischung aus verschiedenen reinen Gasen, die je nach Gasquelle eine leicht unterschiedliche Zusammensetzung hat. Die wichtigsten Bestandteile von Erdgas sind Kohlenwasserstoffe wie beispielsweise Methan, Äthan, Propan, Butan, Pentan, Hexan, Heptan und Oktan, sowie nicht brennbare Gase in Form von CO2, N2, O2 und korrosive Gase wie beispielsweise H2S und SO2.Natural gas is a mixture of different pure gases, which has a slightly different composition depending on the gas source. The most important components of natural gas are hydrocarbons such as methane, ethane, propane, butane, pentane, hexane, heptane and octane, as well as non-combustible gases in the form of CO 2 , N 2 , O 2 and corrosive gases such as H 2 S and SO 2 .
Der Energieinhalt von Erdgas pro Zeit lässt sich aus folgender Gleichung bestimmen: Energie/Zeit = Energie/Masse·Masse/Zeit. Die Energie pro Masse ist der Brennwert bzw. der spezifische Energieinhalt. Die Masse/Zeit ist der Massendurchfluss durch die für das Erdgas jeweils vorgesehene Transportleitung. Für die Ermittlung der Energie pro Zeit müssen der Brennwert und der Massendurchfluss ermittelt und miteinander multipliziert werden.Of the Energy content of natural gas per time can be calculated from the following equation determine: energy / time = energy / mass · mass / time. The energy per Mass is the calorific value or specific energy content. The Mass / time is the mass flow through the natural gas provided Transport line. For the determination of energy per time, the calorific value and the Mass flow are determined and multiplied together.
Das Bestimmen des Brennwertes kann beispielsweise mit einem Gaschromatographen durchgeführt werden. Hierbei erfolgt auch die Analyse des Erdgases. Dabei werden seine Bestandteile und die Größe ihrer Anteile in Form von Methan, Äthan, Propan, Butan, Pentan, Hexan sowie der höherkettigeren Kohlenwasserstoffe ermittelt. Von diesen reinen Gasen ist der Brennwert bekannt. Der Brennwert der Gasmischung ergibt sich durch gewichtete Summation der Einzelbrennwerte.The Determining the calorific value can, for example, with a gas chromatograph carried out become. This is also the analysis of natural gas. It will be its components and the size of its Shares in the form of methane, ethane, Propane, butane, pentane, hexane and the higher-chain hydrocarbons determined. Of these pure gases, the calorific value is known. Of the The calorific value of the gas mixture results from weighted summation the individual fuel values.
Der Massendurchfluss ergibt sich durch die Multiplikation des Volumendurchflusses mit der Gasdichte. Für die Messung des Volumendurchflusses sind verschiedene Messverfahren und Vorrichtungen wie beispielsweise die Bestimmung des Differenzdrucks über einer Blende, die Bestimmung mittels der Ultraschall-Laufzeit und das Flügelrad bekannt. Die Dichte des Gases ist in der Regel nicht genau bekannt, da sie von der ge- nauen Zusammensetzung abhängt. Außerdem ist die Gasdichte von der Temperatur und dem Druck abhängig. Eine zusätzliche Druck- und Temperaturmessung ist daher erforderlich, um entsprechende Korrekturberechnungen vorzunehmen zu können. Bei Verwendung eines Gaschromatographen kann die Gasdichte auch rechnerisch durch die Addition der Dichten der Einzelkomponenten ermittelt werden.Of the Mass flow results from the multiplication of the volume flow with the gas density. For the measurement of the volume flow are different measuring methods and devices such as determining the differential pressure over one Aperture, the determination by means of the ultrasonic transit time and the impeller known. The density of the gas is usually not known exactly because it depends on the exact composition. In addition, the gas density of depending on the temperature and the pressure. An additional printing and temperature measurement is therefore required to make appropriate correction calculations to be able to make. When using a gas chromatograph, the gas density can also arithmetically by the addition of the densities of the individual components be determined.
Die bis jetzt bekannten Einrichtungen zur Bestimmung des Energieinhalts von Gasen sind mit einem Gaschromatographen ausgerüstet. Er ist in der Nähe der Transportleitung installiert ist, durch die das Gas geleitet wird, dessen Energieinhalt bestimmt werden soll. Ferner ist eine Probennahmeeinheit vorgesehen, welche in den Innenbereich der Transportleitung hinein ragt, und mit einer Probenkonditioniereinheit in Verbindung steht, die an den Gaschromatographen angeschlossen ist. Eine Durchflussmessvorrichtung, deren Sensoren ebenfalls mit dem Innenbereich der Transportleitung in Verbindung stehen, ist an einen Computer angeschlossen, mit dem auch die Signalausgänge des Gaschromatographen in Verbindung stehen. Zudem ist die Einrichtung mit einer Gasflasche bestückt, die ein Kalibrier- und Trägergas enthält. Mit dem Computer wird aus den ermittelten Werten der Gaszusammensetzung und des Massenstromes der Energieinhalt des Gases bestimmt. Bei diesen bekannten Einrichtungen sind die Installation und die Inbetriebnahme recht kompliziert und zeitaufwändig, da Eingriffe in die Gasleitungen vorgenommen werden müssen, welche für die Durch flussmessung und die Probennahmeeinheit erforderlich sind. Die verwendeten Vorrichtungen müssen zudem miteinander verbunden und aufeinander abgestimmt werden. Der Einbau und die Nutzung dieser Einrichtungen sind deshalb sehr teuer.The hitherto known means for determining the energy content of gases are equipped with a gas chromatograph. He is near the transport line is installed, through which the gas is passed whose energy content is to be determined. Furthermore, a Sampling provided, which in the interior of the transport line protrudes, and in communication with a sample conditioning unit stands, which is connected to the gas chromatograph. A flow meter, their sensors also with the interior of the transport line is connected to a computer, with which too the signal outputs of the gas chromatograph. In addition, the device equipped with a gas cylinder, which is a calibration and carrier gas contains. With the computer is calculated from the values of the gas composition and the mass flow determines the energy content of the gas. at These known devices are the installation and commissioning quite complicated and time consuming, since interventions in the gas lines must be made, which for flow measurement and the sampling unit are required. The devices used have to Moreover, they are connected and coordinated with each other. Of the Installation and use of these facilities are therefore very expensive.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung aufzuzeigen, die alle erforderlichen Bauelemente zur Bestimmung des Energieinhalts von in Transportleitungen strömenden Gasen umfasst, und die zudem in einfacher Weise auch noch nachträglich in bereits bestehende Transportleitungen eingebaut werden kann.Of the Invention has for its object to provide a device all the components required to determine the energy content of flowing in transport lines Includes gases, and also in a simple way even later in already existing transport lines can be installed.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.These The object is solved by the features of claim 1.
Weitere erfinderische Merkmale sind in den abhängigen Ansprüchen gekennzeichnet.Further inventive features are characterized in the dependent claims.
Die Erfindung wird nachfolgend an Hand von schematischen Zeichnungen näher erläutert.The The invention will be described below with reference to schematic drawings explained in more detail.
Es zeigen:It demonstrate:
Die
elektrische Spannungsversorgung für die Bauelemente der Analyseeinrichtung
Die
Signalausgänge
der Durchflussmessvorrichtung
Das
Einbaurohr
Wird
die Vorrichtung
Das
Einbaurohr
Falls
es die Gegebenheiten erfordern, kann die Vorrichtung
Die
in
Der
Mikroprozessor
Bei
der in
Als
Durchflussmessvorrichtung
Falls
es die Gegebenheiten erfordern, kann auch ein mechanisch arbeitender
Flügelradgeber
als Durchflussmessvorrichtung
Die Erfindung beschränkt sich nicht nur auf das hier beschriebenen Ausführungsbeispiele. Vielmehr umfasst sie alle Variationen der Vorrichtung, die dem Kern der Erfindung zugeordnet werden können.The Restricted invention not only on the embodiments described here. Rather, it includes They all variations of the device, which is the core of the invention can be assigned.
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410020287 DE102004020287A1 (en) | 2004-04-26 | 2004-04-26 | Apparatus for determining the energy content of a gas flowing in a pipeline comprises an analysis unit, a flow meter and a mounting pipe assembled into a single unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410020287 DE102004020287A1 (en) | 2004-04-26 | 2004-04-26 | Apparatus for determining the energy content of a gas flowing in a pipeline comprises an analysis unit, a flow meter and a mounting pipe assembled into a single unit |
Publications (1)
Publication Number | Publication Date |
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DE102004020287A1 true DE102004020287A1 (en) | 2005-11-17 |
Family
ID=35160323
Family Applications (1)
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DE200410020287 Withdrawn DE102004020287A1 (en) | 2004-04-26 | 2004-04-26 | Apparatus for determining the energy content of a gas flowing in a pipeline comprises an analysis unit, a flow meter and a mounting pipe assembled into a single unit |
Country Status (1)
Country | Link |
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DE (1) | DE102004020287A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105974085A (en) * | 2016-07-14 | 2016-09-28 | 河南省煤炭科学研究院有限公司 | Portable and intelligent rapid gas content tester |
CN112033488A (en) * | 2020-08-19 | 2020-12-04 | 重庆市山城燃气设备有限公司 | Natural gas meter with composite adjusting function and control method thereof |
CN112946167A (en) * | 2021-02-04 | 2021-06-11 | 成都秦川物联网科技股份有限公司 | Energy metering perception control method and system based on chromatography and ultrasonic waves |
US11796528B2 (en) | 2021-02-04 | 2023-10-24 | Chengdu Qinchuan Iot Technology Co., Ltd. | Method and system for measuring energy of natural gas |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19921167A1 (en) * | 1999-02-24 | 2000-08-31 | Ruhrgas Ag | Method and arrangement for measuring the calorific value and / or the Wobbe index of fuel gas, in particular natural gas |
DE10129300A1 (en) * | 2000-06-23 | 2002-02-07 | Sensirion Ag Zuerich | Mass flow detector, in particular gas meter, and method for data exchange between components |
DE69231977T2 (en) * | 1991-10-23 | 2002-04-04 | Honeywell Inc | DEVICE FOR COMBUSTION-FREE MEASUREMENT OF THE QUALITY OF GASEOUS FUEL |
DE10121641A1 (en) * | 2000-09-29 | 2002-04-18 | Ruhrgas Ag | Method and device for determining the gas quality of a natural gas |
DE10134456A1 (en) * | 2001-07-16 | 2003-02-06 | Abb Research Ltd | Scanning methods for flowmeters |
DE69907222T2 (en) * | 1998-08-25 | 2004-02-05 | Lattice Intellectual Property Ltd. | ENERGY CONSUMPTION MEASURING |
EP1411355A1 (en) * | 2002-10-18 | 2004-04-21 | Emerson Electric Co. | Method and device for determining a characteristic value that is representative of the condition of a gas |
-
2004
- 2004-04-26 DE DE200410020287 patent/DE102004020287A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69231977T2 (en) * | 1991-10-23 | 2002-04-04 | Honeywell Inc | DEVICE FOR COMBUSTION-FREE MEASUREMENT OF THE QUALITY OF GASEOUS FUEL |
DE69907222T2 (en) * | 1998-08-25 | 2004-02-05 | Lattice Intellectual Property Ltd. | ENERGY CONSUMPTION MEASURING |
DE19921167A1 (en) * | 1999-02-24 | 2000-08-31 | Ruhrgas Ag | Method and arrangement for measuring the calorific value and / or the Wobbe index of fuel gas, in particular natural gas |
DE10129300A1 (en) * | 2000-06-23 | 2002-02-07 | Sensirion Ag Zuerich | Mass flow detector, in particular gas meter, and method for data exchange between components |
DE10121641A1 (en) * | 2000-09-29 | 2002-04-18 | Ruhrgas Ag | Method and device for determining the gas quality of a natural gas |
DE10134456A1 (en) * | 2001-07-16 | 2003-02-06 | Abb Research Ltd | Scanning methods for flowmeters |
EP1411355A1 (en) * | 2002-10-18 | 2004-04-21 | Emerson Electric Co. | Method and device for determining a characteristic value that is representative of the condition of a gas |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105974085A (en) * | 2016-07-14 | 2016-09-28 | 河南省煤炭科学研究院有限公司 | Portable and intelligent rapid gas content tester |
CN112033488A (en) * | 2020-08-19 | 2020-12-04 | 重庆市山城燃气设备有限公司 | Natural gas meter with composite adjusting function and control method thereof |
CN112946167A (en) * | 2021-02-04 | 2021-06-11 | 成都秦川物联网科技股份有限公司 | Energy metering perception control method and system based on chromatography and ultrasonic waves |
CN112946167B (en) * | 2021-02-04 | 2022-05-27 | 成都秦川物联网科技股份有限公司 | Energy metering perception control method and system based on chromatography and ultrasonic waves |
US11796528B2 (en) | 2021-02-04 | 2023-10-24 | Chengdu Qinchuan Iot Technology Co., Ltd. | Method and system for measuring energy of natural gas |
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