EP1570204B1 - Device and method for preheating a gas in a gas-pressure regulation and measuring installation using a fuel cell - Google Patents
Device and method for preheating a gas in a gas-pressure regulation and measuring installation using a fuel cell Download PDFInfo
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- EP1570204B1 EP1570204B1 EP03769227A EP03769227A EP1570204B1 EP 1570204 B1 EP1570204 B1 EP 1570204B1 EP 03769227 A EP03769227 A EP 03769227A EP 03769227 A EP03769227 A EP 03769227A EP 1570204 B1 EP1570204 B1 EP 1570204B1
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- Prior art keywords
- gas
- fuel cell
- heat exchanger
- conduit
- pressure regulation
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- 239000000446 fuel Substances 0.000 title claims abstract description 43
- 238000009434 installation Methods 0.000 title claims abstract 8
- 238000000034 method Methods 0.000 title abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 description 59
- 230000001105 regulatory effect Effects 0.000 description 19
- 230000003466 anti-cipated effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000002631 hypothermal effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
- F17D1/05—Preventing freezing
Definitions
- the invention relates to a device for preheating a gas before its expansion in a gas pressure regulating and measuring system with the features of the preamble of claim 1.
- Natural gas for public gas supply is routed under high pressure between approximately 40 and 80 bar over long distances to regional or municipal distribution grids. Under high pressure, gas is also temporarily stored in storage facilities of regional or municipal distribution networks. Before reaching the end user, the gas in the gas pressure regulating and measuring system must be reduced to the lower supply pressure of approx. 20-50 bar in the regional or local distribution grids, 3 - 12 bar in main distribution rails and 20 - 1000 mbar to the end user or to be relaxed. This relaxation leads to the Joule-Thomson effect, namely to the cooling of the gas.
- temperatures occur where it is to be expected that either the gas hydrates contained in the gas inside the components of the gas pressure regulating and measuring system freeze or that system parts, apparatus or devices freeze through condensates on the outer side, is to be expected with faults or failures of system parts or the entire gas pressure regulating and measuring system.
- Impermissible temperatures can occur especially when there are faults in the heat supply of the heat exchangers.
- a turbo-generator is used, which is preceded by a heat exchanger.
- the heat supply of the heat exchanger is carried out by at least one cogeneration unit (CHP), which includes a gas combustion engine and a generator.
- the CHP is operated with the gas after the turbogenerator.
- the heat exchanger preheats the gas before it is fed to the turbo-generator for expansion. Both the CHP and the turbogenerator generate electrical energy, which is supplied to a power grid.
- the supply of the gas preheater with thermal energy is carried out with conventional heating systems, ie with gas-fired boilers, as they also - depending on the power requirement - in industrial, commercial or residential use.
- the WO 94/11626 gives no indication for the supply of gas pressure regulating and measuring systems with electrical energy.
- the object of the present invention is to propose a device and a method for preheating a gas before its expansion in a gas pressure regulating and measuring system, with which the energy supply of the system is improved.
- the solution is carried out with a device for preheating a gas before its expansion in a gas pressure regulating and measuring system with the features of claim 1.
- a device for heating a gas under high pressure in a line to a gas pressure regulating and measuring system with a heat exchanger, a subsequent pressure reducing device to a continuing line and a heater for the heat exchanger operated by the gas from the line is designed as a gas-fueled fuel cell whose additional energy provided in addition to the thermal energy is particularly advantageous adapted to the needs of gas pressure regulating and measuring systems and makes them in particular independent of other electrical supply facilities.
- closed pipe systems are provided for the thermal energy supply from the fuel cell to the heat exchanger.
- the heat of the fuel cell is fed via a closed pipe system to a heat cycle, which supplies a gas preheater with thermal energy.
- the line-bound heat transfer pipe network consists of pipes, fittings, fittings and other components, as they are also used in conventional heating technology. Other thermal components are u. a. Control and protection devices and intrinsic safety devices. Any excess thermal energy can be used elsewhere and fed into a district heating system, for example.
- the fuel cell is designed so that it supplies the heat exchanger at least completely with heat, so that at least the need of Gastikregel- and measuring system is fully covered in thermal energy.
- the heat-side device after the fuel cell supplies via a primary heat exchanger, which may also be designed as a heat pipe heat exchanger, the heat cycle of the gas preheater exactly with the heat, which is necessary to compensate for relaxation temperature reduction.
- a primary heat exchanger which may also be designed as a heat pipe heat exchanger
- the heat cycle of the gas preheater exactly with the heat, which is necessary to compensate for relaxation temperature reduction.
- it is also possible to convert the waste heat into waste using Stirling engines or steam engines, engines and turbines.
- the fuel cell is designed so that the electrical energy generated by it for self-supply, for Operation of the gas pressure regulating and measuring system available and can be fed into a particular public grid.
- Different amounts of electrical energy provided by the fuel cell are due to the fuel cell running in heat-guided operation.
- the thermal energy provided by the fuel cell varies with the gas flow rate through the gas pressure regulating and measuring system. With the output of the fuel cell thermal energy correlated by the fuel cell provided electrical energy.
- the power requirements of the fuel cell, as well as the gas pressure regulating and measuring system are mostly almost constant. Electrical energy obtained from the fuel cell is first used according to the invention to satisfy the fuel cell's demand for electrical energy.
- the fuel cell which generates an equal or greater amount of electrical energy compared to the thermal energy in addition to the heat demand in addition to cover the electricity needs of a gas pressure regulating and measuring system and offer excess electrical energy to the market.
- the electrical components provided for this purpose are, for example, DC circuits, fuses and switches, inverters with fuses, AC circuits with transformer and mains connection.
- the downstream device downstream of the fuel cell feeds a DC circuit which is connected to DC loads and to the inverter.
- the connection is made to any necessary transformer and power supply.
- Heat-driven operation means that due to the pressure conditions, an anticipated temperature decrease over time due to the gas relaxation is derived.
- the fuel cell can be controlled accordingly in order to provide the anticipated course of the temperature reduction, the amount of heat available and compensate for the reduction in temperature, if possible. Should the temperature decrease due to the pressure conditions take place so quickly that an exact compensation due to the thermal inertia is not possible, it is the aim of the scheme to bring the temperature back to the old level as quickly as possible.
- the heat exchanger is designed as a heat pipe for particularly efficient heat transfer.
- gas for the operation of the fuel cell of the line before odor removal can be removed.
- the fuel-side device in front of the fuel cell removes the gas from the odorization either on the high-pressure or low-pressure side of the line.
- the gas purification step in front of the fuel cell is simplified considerably. If the fuel extraction after the Odormaschine, a more complex gas treatment would be necessary.
- the gas for operating the fuel cell can be removed either before or after the pressure reducing device.
- a direct current and an alternating current network are provided in the gas pressure regulating and measuring system at the same time.
- the fuel cell is designed as a low, medium or high temperature fuel cell.
- a device of the state of the art has for heating a in a line of a gas pressure regulating and measuring system under high pressure gas 1, a heat exchanger 2, to which a pressure reducing device 3 connects to a further line 4.
- the gas is for safety reasons after the pressure reducing device 3 odoriert in the continuing line to 4.
- the heater 5 does not generate electrical energy.
- a device has for heating a in a line of a gas pressure regulating and measuring system under high pressure gas 1, a heat exchanger 2, to which a pressure reducing device 3 connects to a further line 4.
- the gas is for safety reasons after the pressure reducing device 3 in the continuing line odoriert to 4.
- the gas from the secondary line 4 feeds in a designed as a gas-fuel cell 5 heater 5 for the heat exchanger 2.
- the fuel cell 5 generates electrical energy and optionally emits electrical energy into a power grid 6.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Vorwärmung eines Gases vor dessen Expansion in einer Gasdruckregel- und Messanlage mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a device for preheating a gas before its expansion in a gas pressure regulating and measuring system with the features of the preamble of
Erdgas für die öffentliche Gasversorgung wird unter hohem Druck zwischen ca. 40 und 80 bar über große Entfernungen zu regionalen oder kommunalen Verteilungsnetzen geleitet. Unter hohem Druck wird Gas auch in Speichern regionaler oder kommunaler Verteilungsnetze zwischengelagert. Bevor es zum Endabnehmer gelangt, muss das Gas in Gasdruckregel- und Messanlage auf den niedrigeren Versorgungsdruck von ca. 20 - 50 bar in den regionalen oder kommunalen Verteilungsnetzen, auf 3 - 12 bar in Hauptverteilungsschienen und auf 20 - 1000 mbar bis zum Endverbraucher reduziert oder entspannt werden. Diese Entspannung führt zum Joule-Thomson-Effekt, nämlich zur Abkühlung des Gases. Treten dabei in den Gasdruckregel- und Messanlagen Temperaturen auf, bei denen damit zu rechnen ist, dass entweder die im Gas enthaltenen Gashydrate im Innern der Bauteile der Gasdruckregel- und Messanlage gefrieren oder dass Anlagenteile, Apparate oder Geräte durch Kondensate an der äußeren Seite einfrieren, ist mit Störungen oder Ausfällen von Anlagenteilen oder der gesamten Gasdruckregel- und Messanlage zu rechnen. Um eine unzulässige Unterkühlung des Gases bei hohen Druckdifferenzen zu vermeiden, ist es bekannt, das Gas vor der Entspannung zu erwärmen. Unzulässige Temperaturen können besonders dann auftreten, wenn Störungen in der Wärmeversorgung der Wärmetauscher auftreten.Natural gas for public gas supply is routed under high pressure between approximately 40 and 80 bar over long distances to regional or municipal distribution grids. Under high pressure, gas is also temporarily stored in storage facilities of regional or municipal distribution networks. Before reaching the end user, the gas in the gas pressure regulating and measuring system must be reduced to the lower supply pressure of approx. 20-50 bar in the regional or local distribution grids, 3 - 12 bar in main distribution rails and 20 - 1000 mbar to the end user or to be relaxed. This relaxation leads to the Joule-Thomson effect, namely to the cooling of the gas. In the gas pressure regulating and measuring systems, temperatures occur where it is to be expected that either the gas hydrates contained in the gas inside the components of the gas pressure regulating and measuring system freeze or that system parts, apparatus or devices freeze through condensates on the outer side, is to be expected with faults or failures of system parts or the entire gas pressure regulating and measuring system. To an inadmissible hypothermia To avoid the gas at high pressure differences, it is known to heat the gas before relaxing. Impermissible temperatures can occur especially when there are faults in the heat supply of the heat exchangers.
Aus der
Die Versorgung des Gasvorwärmers mit thermischer Energie erfolgt dabei mit konventionellen Heizungsanlagen, d. h. mit brenngasbefeuerten Kesseln, wie sie auch - je nach Leistungsanforderung - im industriellen, gewerblichen oder privaten Bereich Verwendung finden. Die
Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung und ein Verfahren zur Vorwärmung eines Gases vor dessen Expansion in einer Gasdruckregel- und Messanlage vorzuschlagen, mit der die Energieversorgung der Anlage verbessert wird.The object of the present invention is to propose a device and a method for preheating a gas before its expansion in a gas pressure regulating and measuring system, with which the energy supply of the system is improved.
Die Lösung erfolgt mit einer Vorrichtung zur Vorwärmung eines Gases vor dessen Expansion in einer Gasdruckregel- und Messanlage mit den Merkmalen des Anspruchs 1.The solution is carried out with a device for preheating a gas before its expansion in a gas pressure regulating and measuring system with the features of
Gemäß der Erfindung ist eine Vorrichtung zur Erwärmung eines in einer Leitung zu einer Gasdruckregel- und Messanlage unter hohem Druck stehenden Gas mit einem Wärmetauscher, einer anschließenden Druckreduziervorrichtung zu einer weiterführenden Leitung und einer vom Gas aus der Leitung betriebenen Heizvorrichtung für den Wärmetauscher versehen. Die Heizvorrichtung ist als gasbetriebene Brennstoffzelle ausgebildet, deren zusätzlich zur thermischen Energie bereitgestellte elektrische Energie besonders vorteilhaft angepasst ist an den Bedarf von Gasdruckregel- und Messanlagen und macht diese insbesondere unabhängig von anderen elektrischen Versorgungseinrichtungen. Durch die erfindungsgemäße Vorrichtung lässt sich im Vergleich zu konventionellen Heizungsanlagen ohne Stromerzeugung vorteilhaft Primärenergie sparen. Dies führt zu einer Verringerung der Emission von CO2. Ein solches Ergebnis ist besonders dann erreichbar, wenn bei wärmegeführtem, modulierendem Betrieb abwechselnd hohe und niedrige Gasmengen durch die Gasdruckregel- und Messanlage fließen, für die variable thermische Energiezufuhr benötigt wird, um das Gas, welches beim Expansionsvorgang eine Temperaturerniedrigung durch den sogenannten Joule-Thomson-Effekt, d. h. Temperaturerniedrigung bei Expansion, erfährt, auf höheres Temperaturniveau anzuheben, so dass die Gastemperatur hinter nach Möglichkeit der vor der Druckreduziervorrichtung entspricht.According to the invention, there is provided a device for heating a gas under high pressure in a line to a gas pressure regulating and measuring system with a heat exchanger, a subsequent pressure reducing device to a continuing line and a heater for the heat exchanger operated by the gas from the line. The heating device is designed as a gas-fueled fuel cell whose additional energy provided in addition to the thermal energy is particularly advantageous adapted to the needs of gas pressure regulating and measuring systems and makes them in particular independent of other electrical supply facilities. By means of the device according to the invention, primary energy can advantageously be saved in comparison to conventional heating systems without power generation. This leads to a reduction in the emission of CO 2 . Such a result is particularly achievable when in heat-controlled, modulating operation alternately high and low gas flows through the Gasdruckregel- and measuring system is required for the variable thermal energy supply to the gas, which in the expansion process, a temperature decrease by the so-called Joule-Thomson -Effekt, ie temperature reduction during expansion, learns to raise to a higher temperature level, so that the gas temperature behind as far as possible before the pressure reduction device.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung sind geschlossene Rohrsysteme vorgesehen für die thermische Energiezufuhr von der Brennstoffzelle an den Wärmetauscher. Die Wärme der Brennstoffzelle wird über ein geschlossenes Rohrsystem einem Wärmekreislauf zugeführt, der einen Gasvorwärmer mit thermischer Energie versorgt. Das leitungsgebundene Wärmeträgerrohrnetz besteht aus Rohren, Armaturen, Formstücken und weiteren Komponenten, wie sie auch in der konventionellen Heiztechnik Verwendung finden. Weitere thermische Komponenten sind u. a. Regelungs- und Steuerungseinrichtungen und Eigenschutzsicherungen. Eventuell überschüssige thermische Energie kann anderweitig genutzt werden und beispielsweise in ein Fernwärmesystem eingespeist werden.According to an advantageous embodiment of the invention closed pipe systems are provided for the thermal energy supply from the fuel cell to the heat exchanger. The heat of the fuel cell is fed via a closed pipe system to a heat cycle, which supplies a gas preheater with thermal energy. The line-bound heat transfer pipe network consists of pipes, fittings, fittings and other components, as they are also used in conventional heating technology. Other thermal components are u. a. Control and protection devices and intrinsic safety devices. Any excess thermal energy can be used elsewhere and fed into a district heating system, for example.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Brennstoffzelle so ausgelegt, dass sie den Wärmetauscher mindestens vollständig mit Wärme versorgt, so dass mindestens der Bedarf der Gasdruckregel- und Messanlage an thermischer Energie vollständig gedeckt ist. Die wärmeseitige Vorrichtung nach der Brennstoffzelle versorgt über einen Primärwärmetauscher, welcher auch als Heat-Pipe-Wärmetauscher ausgeführt sein kann, den Wärmekreislauf des Gasvorwärmers exakt mit der Wärme, welche zum Ausgleich der Entspannungstemperaturerniedrigung nötig ist. Statt oder zusätzlich zum Heat-Pipe-Wärmetauscher ist auch eine Nachverstromung der Abwärme möglich, wozu sich Stirling-Motoren oder Dampfmotoren,- maschinen und- turbinen eignen.According to a further advantageous embodiment of the invention, the fuel cell is designed so that it supplies the heat exchanger at least completely with heat, so that at least the need of Gasdruckregel- and measuring system is fully covered in thermal energy. The heat-side device after the fuel cell supplies via a primary heat exchanger, which may also be designed as a heat pipe heat exchanger, the heat cycle of the gas preheater exactly with the heat, which is necessary to compensate for relaxation temperature reduction. Instead of or in addition to the heat pipe heat exchanger, it is also possible to convert the waste heat into waste, using Stirling engines or steam engines, engines and turbines.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Brennstoffzelle so ausgelegt, dass die von ihr erzeugte elektrische Energie zur Eigenversorgung, zum Betrieb der Gasdruckregel- und Messanlage nutzbar und in ein insbesondere öffentliches Stromnetz einspeisbar ist. Unterschiedliche Mengen der von der Brennstoffzelle zur Verfügung gestellten elektrischen Energie beruhen darauf, dass die Brennstoffzelle im wärmegeführten Betrieb läuft. Die von der Brennstoffzelle zur Verfügung gestellte thermische Energie variiert mit dem Gasdurchsatz durch die Gasdruckregel- und Messanlage. Mit der von der Brennstoffzelle abgegebenen thermischen Energie korreliert die von der Brennstoffzelle zur Verfügung gestellte elektrische Energie. Der Strombedarf der Brennstoffzelle, sowie der Gasdruckregel- und Messanlage sind aber zumeist nahezu konstant. Aus der Brennstoffzelle gewonnene elektrische Energie wird erfindungsgemäß zunächst eingesetzt, um den Bedarf der Brennstoffzelle an elektrischer Energie zu befriedigen. Erfindungsgemäß kann die Brennstoffzelle, die eine im Vergleich zur thermischen Energie gleich große oder größere Menge elektrischer Energie erzeugt neben dem Wärmebedarf zusätzlich den Strombedarf einer Gasdruckregel- und Messanlage decken und überschüssige elektrische Energie dem Markt anbieten. Die dazu vorgesehenen elektrischen Komponenten sind beispielsweise Gleichstromkreise, - sicherungen und -schalter, Wechselrichter mit Sicherungen, Wechselstromkreise mit Transformator und Netzanschluss. Die stromseitige Vorrichtung nach der Brennstoffzelle speist einen Gleichstromkreis, welcher mit Gleichstromverbrauchern und dem Wechselrichter verbunden ist.According to a further advantageous embodiment of the invention, the fuel cell is designed so that the electrical energy generated by it for self-supply, for Operation of the gas pressure regulating and measuring system available and can be fed into a particular public grid. Different amounts of electrical energy provided by the fuel cell are due to the fuel cell running in heat-guided operation. The thermal energy provided by the fuel cell varies with the gas flow rate through the gas pressure regulating and measuring system. With the output of the fuel cell thermal energy correlated by the fuel cell provided electrical energy. The power requirements of the fuel cell, as well as the gas pressure regulating and measuring system are mostly almost constant. Electrical energy obtained from the fuel cell is first used according to the invention to satisfy the fuel cell's demand for electrical energy. According to the invention, the fuel cell, which generates an equal or greater amount of electrical energy compared to the thermal energy in addition to the heat demand in addition to cover the electricity needs of a gas pressure regulating and measuring system and offer excess electrical energy to the market. The electrical components provided for this purpose are, for example, DC circuits, fuses and switches, inverters with fuses, AC circuits with transformer and mains connection. The downstream device downstream of the fuel cell feeds a DC circuit which is connected to DC loads and to the inverter.
Über den Wechselrichter, der auch bidirektional ausgeführt sein kann, erfolgt die Verbindung zum ggf. nötigen Transformator und zum Netzanschluss.About the inverter, which can also be bidirectional, the connection is made to any necessary transformer and power supply.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist eine Steuervorrichtung für die Brennstoffzelle vorgesehen. Wärmegeführter Betrieb bedeutet, dass aufgrund der Druckverhältnisse eine voraussichtliche Temperaturerniedrigung über die Zeit aufgrund der Gasentspannung abgeleitet wird. Die Brennstoffzelle ist entsprechend steuerbar, um dem vorhergesehenen Verlauf der Temperaturerniedrigung die Wärmemenge zur Verfügung zu stellen und die Temperaturerniedrigung nach Möglichkeit auszugleichen. Sollte die Temperaturerniedrigung aufgrund der Druckverhältnisse so schnell vonstatten geht, dass eine exakte Kompensation aufgrund der thermischen Trägheit nicht möglich ist, ist es Ziel der Regelung, die Temperatur möglichst schnell wieder auf das alte Niveau zu bringen.According to a further advantageous embodiment of the invention is a control device for the fuel cell intended. Heat-driven operation means that due to the pressure conditions, an anticipated temperature decrease over time due to the gas relaxation is derived. The fuel cell can be controlled accordingly in order to provide the anticipated course of the temperature reduction, the amount of heat available and compensate for the reduction in temperature, if possible. Should the temperature decrease due to the pressure conditions take place so quickly that an exact compensation due to the thermal inertia is not possible, it is the aim of the scheme to bring the temperature back to the old level as quickly as possible.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist der Wärmetauscher als Heat-Pipe für besonders effiziente Wärmeübertragung ausgeführt.According to a further advantageous embodiment of the invention, the heat exchanger is designed as a heat pipe for particularly efficient heat transfer.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist Gas zum Betrieb der Brennstoffzelle der Leitung vor der Odorierung entnehmbar. Die brennstoffseitige Vorrichtung vor der Brennstoffzelle entnimmt entweder auf der Hochdruck- oder Niederdruckseite der Leitung das Gas vor der Odorierung. Dadurch vereinfacht sich der Gasreinigungsschritt vor der Brennstoffzelle erheblich. Erfolgte die Brennstoffentnahme nach der Odorierung, wäre eine aufwändigere Gasaufbereitung notwendig.According to a further advantageous embodiment of the invention, gas for the operation of the fuel cell of the line before odor removal can be removed. The fuel-side device in front of the fuel cell removes the gas from the odorization either on the high-pressure or low-pressure side of the line. As a result, the gas purification step in front of the fuel cell is simplified considerably. If the fuel extraction after the Odorierung, a more complex gas treatment would be necessary.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist das Gas zum Betrieb der Brennstoffzelle entweder vor oder nach der Druckreduziervorrichtung entnehmbar.According to a further advantageous embodiment of the invention, the gas for operating the fuel cell can be removed either before or after the pressure reducing device.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung sind in der Gasdruckregel- und Messanlage gleichzeitig ein Gleichstrom- und ein Wechselstromnetz vorgesehen.According to a further advantageous embodiment of the invention, a direct current and an alternating current network are provided in the gas pressure regulating and measuring system at the same time.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Brennstoffzelle als Nieder-, Mittel- oder Hochtemperatur Brennstoffzelle ausgebildet.According to a further advantageous embodiment of the invention, the fuel cell is designed as a low, medium or high temperature fuel cell.
Die Erfindung wird im folgenden anhand eines bevorzugten Ausführungsbeispiels dargestellt. Es zeigen:
-
Fig. 1 : eine Vorrichtung zur Vorwärmung eines Gases in einer Gasdruckregel- und Messanlage gemäß einem Stand der Technik, und -
Fig. 2 : eine Vorrichtung zur Vorwärmung eines Gases in einer Gasdruckregel- und Messanlage gemäß der Erfindung.
-
Fig. 1 a device for preheating a gas in a gas pressure regulating and measuring system according to a prior art, and -
Fig. 2 a device for preheating a gas in a gas pressure regulating and measuring system according to the invention.
Claims (12)
- Device for preheating a gas under pressure in a gas pressure regulation and measuring installation with a first conduit, a heat exchanger, a following pressure reduction device for a continuing conduit and a heating device for the heat exchanger driven by the gas from the first conduit, characterized in that the heating device is a gas driven fuel cell and that the device comprises a second conduit communicating the first conduit to the fuel cell in order to make gas out of the first conduit available for the operation of the fuel cell.
- Device according to claim 1, characterized in that systems of closed tubes are provided for the supply of thermal energy from the fuel cell to the heat exchanger.
- Device according to claim 1, characterized in that the fuel cell is designed to feed the heat exchanger at least entirely with heat.
- Device according to claim 1, characterized in that the fuel cell is designed to use the electrical energy produced by it for its own supply.
- Device according to claim 1, characterized in that electrical energy from the fuel cell is usable for the operation of the gas pressure regulation and measuring installation.
- Device according to claim 1, characterized in that electrical energy from the fuel cell is fed into a particularly public grid.
- Device according to claim 1, characterized in that a control device is provided for the fuel cell.
- Device according to claim 1, characterized in that the heat exchanger is designed as a heat-pipe.
- Device according to claim 1, characterized in that gas for the operation of the fuel cell is disposable from the conduit before the odoration.
- Device according to claim 1, characterized in that gas for the operation of the fuel cell is disposable before or after the gas pressure regulation installation.
- Device according to claim 1, characterized in that a direct courant and an alternating courant grid is provided simultaneously in the gas pressure regulation and measuring installation.
- Device according to claim 1, characterized in that the fuel cell is designed as low, medium or high temperature fuel cell.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10246170 | 2002-10-02 | ||
| DE10246170A DE10246170B4 (en) | 2002-10-02 | 2002-10-02 | Device for preheating a gas in a gas pressure regulating and measuring system |
| PCT/DE2003/003249 WO2004031646A1 (en) | 2002-10-02 | 2003-09-30 | Device and method for preheating a gas in a gas-pressure regulation and measuring installation using a fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1570204A1 EP1570204A1 (en) | 2005-09-07 |
| EP1570204B1 true EP1570204B1 (en) | 2008-10-29 |
Family
ID=32038232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03769227A Expired - Lifetime EP1570204B1 (en) | 2002-10-02 | 2003-09-30 | Device and method for preheating a gas in a gas-pressure regulation and measuring installation using a fuel cell |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1570204B1 (en) |
| AT (1) | ATE412849T1 (en) |
| AU (1) | AU2003277817A1 (en) |
| DE (3) | DE10246170B4 (en) |
| DK (1) | DK1570204T3 (en) |
| ES (1) | ES2318170T3 (en) |
| WO (1) | WO2004031646A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004051542B4 (en) * | 2004-10-21 | 2006-10-26 | Andreas Hermann | Heating device for a fuel cell and fuel cell assembly |
| EP1865249B1 (en) * | 2006-06-07 | 2014-02-26 | 2Oc | A gas pressure reducer, and an energy generation and management system including a gas pressure reducer |
| PL2264288T3 (en) * | 2009-06-11 | 2012-01-31 | Thermonetics Ltd | System for efficient fluid depressurisation |
| ITVI20110132A1 (en) * | 2011-05-23 | 2012-11-24 | Francesco Jamoletti | HEATING SYSTEM OF A GAS IN GAS PRESSURE REDUCTION SYSTEMS AND A METHOD OF REALIZING SUCH HEATING. |
| IT201900004675A1 (en) * | 2019-03-28 | 2020-09-28 | Me Te Ma Srl | SYSTEM AND PROCEDURE FOR REGULATING THE PRESSURE OF METHANE GAS COMING FROM THE NETWORK. |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE864848A (en) * | 1978-03-14 | 1978-09-14 | Acec | PRESSURIZED FUEL GAS DISTRIBUTION PLANTS |
| US4693072A (en) * | 1986-08-25 | 1987-09-15 | Acec Power Systems Limited | Method of operating a combined cycle electric power plant |
| NL8801492A (en) * | 1988-06-10 | 1990-01-02 | Kinetics Technology | PROCESS FOR CONVERTING FUEL TO ELECTRICITY. |
| US5003782A (en) * | 1990-07-06 | 1991-04-02 | Zoran Kucerija | Gas expander based power plant system |
| CH682761A5 (en) * | 1990-12-03 | 1993-11-15 | Asea Brown Boveri | A process for reducing the pressure of a gas from a primary network. |
| RU2009389C1 (en) * | 1992-05-25 | 1994-03-15 | Акционерное общество "Криокор" | Gas-distributing station with power plant |
| DE9215695U1 (en) * | 1992-11-18 | 1993-10-14 | Anton Piller GmbH & Co KG, 37520 Osterode | Natural gas expansion plant |
| RU94026102A (en) * | 1993-07-22 | 1996-06-10 | Ормат Индастриз Лтд. (Il) | System for reducing pressure and regenerating energy |
| DE4416359C2 (en) * | 1994-05-09 | 1998-10-08 | Martin Prof Dr Ing Dehli | Multi-stage high-temperature gas expansion system in a gas pipe system with usable pressure drop |
| DE19721555A1 (en) * | 1997-05-23 | 1998-11-26 | Ruhrgas Ag | Preheater for gas |
| US6176046B1 (en) * | 1998-11-24 | 2001-01-23 | Northstar Industries, Inc. | Portable, pre-manufactured, modular natural gas delivery stations |
-
2002
- 2002-10-02 DE DE10246170A patent/DE10246170B4/en not_active Expired - Fee Related
-
2003
- 2003-09-30 WO PCT/DE2003/003249 patent/WO2004031646A1/en not_active Application Discontinuation
- 2003-09-30 ES ES03769227T patent/ES2318170T3/en not_active Expired - Lifetime
- 2003-09-30 DK DK03769227T patent/DK1570204T3/en active
- 2003-09-30 AT AT03769227T patent/ATE412849T1/en not_active IP Right Cessation
- 2003-09-30 EP EP03769227A patent/EP1570204B1/en not_active Expired - Lifetime
- 2003-09-30 DE DE10393901T patent/DE10393901D2/en not_active Expired - Fee Related
- 2003-09-30 AU AU2003277817A patent/AU2003277817A1/en not_active Abandoned
- 2003-09-30 DE DE50310722T patent/DE50310722D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004031646A1 (en) | 2004-04-15 |
| DK1570204T3 (en) | 2009-03-09 |
| EP1570204A1 (en) | 2005-09-07 |
| DE10246170A1 (en) | 2004-04-22 |
| DE50310722D1 (en) | 2008-12-11 |
| ES2318170T3 (en) | 2009-05-01 |
| DE10246170B4 (en) | 2005-08-18 |
| ATE412849T1 (en) | 2008-11-15 |
| DE10393901D2 (en) | 2005-08-25 |
| AU2003277817A1 (en) | 2004-04-23 |
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