EP2933015A1 - Device and method for odorising a gas flowing in a gas network - Google Patents

Device and method for odorising a gas flowing in a gas network Download PDF

Info

Publication number
EP2933015A1
EP2933015A1 EP15158410.9A EP15158410A EP2933015A1 EP 2933015 A1 EP2933015 A1 EP 2933015A1 EP 15158410 A EP15158410 A EP 15158410A EP 2933015 A1 EP2933015 A1 EP 2933015A1
Authority
EP
European Patent Office
Prior art keywords
gas
odorant
feed device
evaporation body
gas line
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.)
Granted
Application number
EP15158410.9A
Other languages
German (de)
French (fr)
Other versions
EP2933015B1 (en
Inventor
David Dillkötter
Sascha Niebialek
Hans-Georg Slooten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RWE Deutschland AG
Original Assignee
RWE Deutschland AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RWE Deutschland AG filed Critical RWE Deutschland AG
Publication of EP2933015A1 publication Critical patent/EP2933015A1/en
Application granted granted Critical
Publication of EP2933015B1 publication Critical patent/EP2933015B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00Pipe-line systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/21Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/21Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/215Mixing gases with liquids by introducing liquids into gaseous media by forcing the gas through absorbent pads containing the liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30Injector mixers
    • B01F25/31Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3141Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40Static mixers
    • B01F25/45Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4524Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through foam-like inserts or through a bed of loose bodies, e.g. balls
    • B01F25/45243Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through foam-like inserts or through a bed of loose bodies, e.g. balls through a foam or expanded material body
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L2290/00Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/14Injection, e.g. in a reactor or a fuel stream during fuel production
    • C10L2290/141Injection, e.g. in a reactor or a fuel stream during fuel production of additive or catalyst
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00Effects achieved by gas storage or gas handling
    • F17C2265/02Mixing fluids
    • F17C2265/025Mixing fluids different fluids
    • F17C2265/027Mixing fluids different fluids with odorizing

Definitions

  • the invention relates to a device comprising means for storing and metering a liquid odorant as a function of the size of a conveyed through a gas line of the gas network gas flow, means for injecting the odorant in the gas line and at least one Impfdüse.
  • the invention further relates to a method for the odorization of a gas stream comprising the metering and injection of a liquid odorant into a gas stream as a function of the size of the gas volume flow conveyed through the gas line.
  • the treated natural gas does not have a sufficient warning smell, it must be odorized according to legal regulations. For this reason, it is known and customary to add odorant to the natural gas.
  • odorants are usually malodorous substances into consideration, which give the natural gas a sulfur-like odor.
  • a widely used odorant is, for example, tetrahydrotiophene (THT).
  • THT tetrahydrotiophene
  • low-sulfur and sulfur-free odorants have also been used for several years.
  • natural gas is provided odorierffenza in the gas transport networks (long distance transport lines), an odorization then takes place by the gas network operator of the relevant gas distribution network in the removal of the gas from the gas transport network and its pressure reduction to the pressure prevailing in the gas distribution network pressure.
  • a liquid odorant is added via an odorizer in a local gas pressure regulating and measuring system (GDRM system).
  • GDRM system local gas pressure regulating and measuring system
  • the addition takes place in dependence of the size of a standardized gas volume flow calculated from the data of the Gas meter and the gas temperature and the gas pressure.
  • a corresponding amount of odorant is fed by means of a pulse-controlled metering pump a Impfdüse, which is designed as inserted into the gas pipe dip tube.
  • the odorant is supplied to the gas stream, for example, in Germany with a value of at least 10 mg / m 3 of gas volume. It is important to ensure that a predetermined limit, for example, 10 mg / m 3 , is not exceeded during the entire transport of the gas.
  • the odorant is intermittently supplied to the dip tube inserted into the gas line, wherein the dip tube is flowed around by the gas flowing through the gas line. The liquid odorant evaporates and is absorbed by the natural gas.
  • the odorant Since the odorant is not atomized during injection into the dip tube and the odorant is fed intermittently in the gravitational direction of the dip tube, it is not excluded that the odorant does not evaporate on or in the dip tube and that significant amounts of liquid odorant through the gas stream be entrained and distributed uncontrollably in the gas line. So it has already occurred in practice that accumulate significant amounts of liquid odorant below the Impfdüse in the gas line.
  • the invention is therefore based on the object to provide an apparatus and a method for odorizing a gas stream in a gas network, with which the aforementioned disadvantages are eliminated.
  • the invention is in particular the object of providing a device for odorization of a gas stream in a gas network and a corresponding method, with which a more effective metering of the liquid odorant in the gas stream in dependence on the size of a funded by the gas line of the gas network gas flow is possible.
  • An apparatus for odorizing a gas stream in a gas network comprises means for storing and metering a liquid odorant depending on the size of a gas flow through a gas line of the gas network, means for injecting the odorant in the gas line, at least one feed device, in the Gas line is arranged and at least one gas-permeable and wettable with odoriferous vaporizing body which extends within the gas line and which fills at least 50% of the free cross-section of the gas line, wherein the at least one feed device is arranged relative to the vaporizing body so that the emerging from the Impfdüse Odorant wetted the vaporizer body.
  • the feed device is preferably designed as a vaccine.
  • the device according to the invention differs in particular from the prior art that a gas-flowable and wettable with odoriferous vaporizing body is provided which extends over a substantial part of the free cross-section of the gas line and this cross-section fills so that it completely from that through the Gas-flow guided gas volume flow is positively flowed through, wherein the evaporation body has an increased surface wettable with the liquid odorant, so that ultimately ensures that the exiting from the injection nozzle odorant is not entrained in the form of drops with the gas stream, so that a quasi-continuous evaporation of the Odorizer can be achieved, although the odorant is applied in liquid form discontinuously on the evaporation body.
  • an odorizing agent may be, for example, a sulfur-containing compound such as tetrahydrothiophene or ethylmercaptan or butyl mercaptan or also low-sulfur and sulfur-free organic compounds based on acrylate.
  • a pulse-controlled metering pump for example as a piston pump, which is controlled by a pulse generator, wherein the pulse generator can receive a control pulse from a gas meter or a Mengenmengenumwerter, via a pulse converter is processed.
  • a feed device in the context of the present invention is for example a simple hole nozzle into consideration, which may for example have a hole diameter between 0.05 mm and 2 mm.
  • the evaporation body according to the invention is not part of the feed device or of a dip tube connected to the feed device, as is known in the prior art.
  • the evaporation body may be an impact surface arranged in the gas flow, for example in the form of a perforated plate.
  • a metal mesh or a fine-meshed metal mesh be provided as the evaporation body.
  • a feed device may be arranged upstream of the evaporation body in front of this.
  • internals can be arranged in front of or behind the evaporation body in the gas line, so that the sprayed from the feeder odorant is vortexed in front of and behind the evaporation surface or the evaporation body.
  • the evaporation body extends over the entire clear width and preferably over the entire clear cross section of the gas line.
  • an open-pored foam body may be provided as the evaporation body, preferably one which has a certain intrinsic stability, for example a hard foam body.
  • Suitable and useful as an evaporation body in the context of the present invention are foam bodies having a flow-through macroporous structure.
  • a macroporous structure in the context of the invention is open pore structure with a pore diameter in the order of millimeters to understand, for example, the pores of the evaporation body have a diameter between 1 mm to 10 mm, preferably between 4 mm and 5 mm.
  • the pore diameter of the macroporous structure of the foam body according to the invention is preferably of the order of hundredths of the inner diameter of the gas pipe.
  • the gas line may for example have an inner diameter of 1000 mm to 3000 mm, in this case, the pore diameter of the Schaumköpers be between 3 mm and 6 mm, so that no significant pressure losses are generated by the evaporation body within the gas line.
  • the foam body is designed as a metal foam, for example as aluminum foam.
  • metal foams based on iron or nickel come into consideration.
  • such metal foams can be used, which were prepared in Schlicker reaction foam sintering process of iron-based and nickel-based powder.
  • foam bodies may also be provided as foam bodies.
  • a flow-through housing which comprises a fiber filling or a lamellar structure can also be provided as the evaporation body.
  • a metal wool or a steel wool can be provided.
  • chemically resistant plastic fibers may be disposed in a housing provided with flow openings.
  • the at least one feed device is arranged in the flow direction in front of the evaporation body.
  • the feed device can be arranged in front of the evaporation body, that the liquid emitted by the feed device or the odorant emerging from the feed device in droplet or droplet form precipitates on the evaporation body and wets it.
  • the gas passing through the evaporation body then causes the odorant to evaporate, so that the evaporated odorant is carried along with the gas stream.
  • the at least one feed device can open into the gas line at the circumference of the gas line, wherein in this case several feed devices can be distributed over a circular arc segment of the gas line.
  • the at least one feed device is arranged in the direction of gravity above the evaporation body and is preferably connected directly to this, so that the exiting from the feed odorant directly wets the evaporation body.
  • the feed device can also be arranged within the evaporation body.
  • the evaporation body is arranged in a flow-through and preferably exchangeable cassette.
  • Such a variant of the arrangement of the evaporation body can also be provided when the evaporation body is designed to be self-supporting stable in the form of a rigid foam.
  • the evaporation body can also be formed as an open-pored soft foam body, which is held in a cassette. Then, for example, the cassette as a whole can be exchangeable, if necessary, the evaporation body can also be removed from the cassette in the sense of interchangeability.
  • the at least one feed device is arranged at the leading end of a radially extending into the gas pipe dip tube and an orifice of the feed device approximately co-axial to the longitudinal center axis and preferably in the longitudinal central axis of the gas line is aligned.
  • the at least one feed device on Scope of the gas line is inserted into a connection sleeve provided for this purpose.
  • connection sleeve can be designed, for example, as a removal lock for the at least one feed device or for a dip tube provided with the at least one feed device.
  • a pipe section is to be understood, which is sealingly connected to the connection sleeve and which is hermetically shut off with respect to the gas line, so that the feed device during operation of the gas line, d. H. without having to shunt the gas line is interchangeable.
  • An exchange in the depressurized state is of course also possible.
  • the object underlying the invention is further achieved by a method for odorizing a gas stream comprising metering and injecting a liquid odorant into a gas stream as a function of the size of the gas volume flow conveyed through the gas line, the method comprising wetting at least one within the gas stream, porous, gas-flowed evaporation body comprising the odorant, wherein at least the majority of the gas flow rate is passed through the evaporation body and the evaporation body is intermittently wetted with a metered in dependence on the height of the gas flow rate amount of the odorant.
  • the odorant is trickled in the direction of gravity on the evaporation body.
  • the odorant may be injected into the gas stream upstream of the evaporation body, preferably atomized therein.
  • Nebulization in the sense of the present invention is understood to mean atomization by means of a known single-substance pressure nozzle, which causes a division of the liquid into fine droplets with a relatively narrow droplet size distribution.
  • turbulence and jet-forming or lamella-forming nozzles can be used for this purpose.
  • Injection in the sense of the present invention is understood to mean the introduction of the liquid through a nozzle opening, for example with a hole diameter of between 0.05 and 0.2 mm, the injection taking place without additional kinetic measures for the drop separation.
  • FIG. 1 illustrates the basic structure of a device for odorization of a gas stream according to the invention.
  • a pipe section of the gas line 2 is referred to, which is connected downstream of a gas meter 3 in the flow direction of the gas.
  • the device for odorizing is arranged for example in a GDRM system of a local gas distribution network.
  • natural gas for the gas pressure distribution network is provided at a reduced pressure from a high-pressure transport network.
  • a liquid odorant for example in the form of THT, is introduced into the gas line 2 via a feed device 4 designed as a seed nozzle 4.
  • the odorant can be injected via the injection nozzle 4 in the gas stream, dripped and atomized, depending on the design of the Impfdüse. 4
  • the odorant is removed from an odorant package 5 and fed to the seed nozzle 4 via a metering pump 6.
  • the metering pump 6 is connected via a control unit 7 to the gas meter 3.
  • the gas meter 3 supplies information about a pulse generator (not shown in the figure) via a quantity corrector 8, which in turn conveys control pulses to the control unit 7.
  • the metering pump 6 receives corresponding control signals, which are respectively implemented in injection strokes of the metering pump 6 designed, for example, as piston pumps.
  • the pulse generator may be formed, for example, as a gate counter or the like.
  • the gas meter downstream pipe section 1 is in perspective in FIG. 2 shown.
  • This can for example have a circumferentially provided connection sleeve 10 in the form of a weld-on, in which the Impfdüse 4 is inserted.
  • the seed nozzle 4 includes a nozzle body inserted in or provided to the leading end of a dip tube.
  • the dip tube 11 and the nozzle body may be integrally formed, but these may also be formed in several parts.
  • vaccination nozzle 4 the entire arrangement consisting of immersion tube 11 and nozzle body will be referred to as vaccination nozzle 4 below.
  • the dip tube 11 extends approximately into the longitudinal central axis of the pipe section 1 and the mouth of the injection nozzle 4 is aligned coaxially to the longitudinal center axis of the pipe section 1. This may, but need not, extend in the longitudinal center axis of the pipe section.
  • the entire free cross section of the pipe section 1 filling cassette 12 is arranged, which encloses an evaporation body or forms an evaporation body.
  • the evaporation body is not shown, only the enclosure of the evaporation body in the form of the cassette 12 is shown, which can accommodate, for example, an evaporation body in the form of a metal foam / rigid foam. In this case, only a marginal enclosure of the disc-shaped Verdunstungs stressess is required.
  • the cassette 12 forms only a peripheral and peripheral enclosure.
  • the cassette 12 can also be designed as a can closed on all sides and be provided with a filling, for example in the form of steel wool or the like, thus forming a total of an evaporation body according to the present invention.
  • the front and rear boundaries of the cassette 12 are formed as perforated plates or sieves.
  • the introduced via the Impfdüse 4 in the gas stream odorant is taken from the gas stream, so that it wets the downstream in the flow direction of evaporation body.
  • About the evaporation body is a successive delivery of the odorant to the gas stream.
  • FIG. 5 An alternative embodiment of the device according to the invention is in FIG. 5 shown.
  • FIG. 5 An alternative embodiment of the device according to the invention is in FIG. 5 shown.
  • the Impfdüse 4 is disposed above the evaporation body or above the cartridge 12, wherein the nozzle opening of the Impfdüse 4 is aligned approximately perpendicular with respect to the imaginary longitudinal central axis of the pipe section 1 and this immediately above the evaporation body opens into the pipe section 1, so that the exiting from the injection nozzle 4 odorant directly into the evaporation body or in the cassette 12 trickles.
  • the evaporation body (not shown) is enclosed at least peripherally by a cassette 12, the invention is to be understood that the evaporation body can be inserted directly into the pipe section 1 at the relevant point.
  • the seed nozzle 4 is disposed upstream of the evaporation body and in the second embodiment, the seed nozzle 4 is arranged with respect to the gas flow at the same level with the evaporation body and above, correspond Features of the two embodiments of the invention each other, in particular, the formation of the evaporation body can be the same.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Odorierung eines Gasstroms in einem Gasnetz, wobei die Vorrichtung Mittel zur Bevorratung und Dosierung eines flüssigen Odoriermittels in Abhängigkeit der Größe eines durch eine Gasleitung (2) des Gasnetzes geförderten Gasvolumenstroms, Mittel zur Injektion des Odoriermittels in die Gasleitung (2) sowie wenigstens eine Einspeiseeinrichtung (4) umfasst, die in der Gasleitung (2) angeordnet ist. Die Vorrichtung umfasst weiterhin einen gasdurchströmbaren und mit Odoriermittel benetzbaren Verdünstungskörper, der sich innerhalb der Gasleitung (2) erstreckt und der wenigstens 50 % des freien Querschnitts der Gasleitung (2) ausfüllt, wobei die wenigstens eine Einspeiseeinrichtung (4) relativ zu dem Verdünstungskörper so angeordnet ist, dass das aus der Einspeiseeinrichtung (4) austretende Odoriermittel den Verdunstungskörper benetzt.

Figure imgaf001
The invention relates to a device and a method for odorization of a gas stream in a gas network, wherein the device means for storing and dosing a liquid odorant depending on the size of a gas through a gas line (2) of the gas network funded gas flow, means for injecting the odorant in the Gas line (2) and at least one feed device (4), which is arranged in the gas line (2). The device further comprises a vaporizable and wettable with odoriferous vaporizing body which extends within the gas line (2) and which fills at least 50% of the free cross section of the gas line (2), wherein the at least one feed device (4) arranged relative to the vaporizing body so in that the odorant leaving the feed device (4) wets the evaporation body.
Figure imgaf001

Description

Die Erfindung betrifft eine Vorrichtung umfassend Mittel zur Bevorratung und Dosierung eines flüssigen Odoriermittels in Abhängigkeit der Größe eines durch eine Gasleitung des Gasnetzes geförderten Gasvolumenstroms, Mittel zur Injektion des Odoriermittels in die Gasleitung sowie wenigstens eine Impfdüse.The invention relates to a device comprising means for storing and metering a liquid odorant as a function of the size of a conveyed through a gas line of the gas network gas flow, means for injecting the odorant in the gas line and at least one Impfdüse.

Die Erfindung betrifft weiterhin ein Verfahren zur Odorierung eines Gasstroms umfassend die Dosierung und Injektion eines flüssigen Odoriermittels in einen Gasstrom in Abhängigkeit der Größe des durch die Gasleitung geförderten Gasvolumenstroms.The invention further relates to a method for the odorization of a gas stream comprising the metering and injection of a liquid odorant into a gas stream as a function of the size of the gas volume flow conveyed through the gas line.

Bei der leitungsgebundenen Versorgung der Allgemeinheit mit Erdgas, welches im aufbereiteten Zustand im Wesentlichen geruchlos ist, wird aus Sicherheitsgründen gefordert, dass das Erdgas einen hinreichenden Geruch aufweist, sodass etwaige Leckagen im Leitungsnetz vom Menschen subjektiv wahrnehmbar sind.For the general supply of natural gas to natural gas, which is substantially odorless in the prepared state, it is required for safety reasons that the natural gas has a sufficient odor, so that any leaks in the pipe network are subjectively perceivable by humans.

Sofern das aufbereitete Erdgas keinen hinreichenden Warngeruch aufweist, ist dieses nach gesetzlichen Vorschriften zu odorieren. Aus diesem Grund ist es bekannt und üblich, dem Erdgas Odoriermittel zuzugeben. Als Odoriermittel kommen üblicherweise übelriechende Substanzen in Betracht, die dem Erdgas einen schwefelartigen Geruch verleihen. Ein weitverbreitetes Odoriermittel ist beispielsweise Tetrahydrotiophen (THT). Des Weiteren werden seit einigen Jahren auch schwefelarme und schwefelfreie Odoriermittel eingesetzt.If the treated natural gas does not have a sufficient warning smell, it must be odorized according to legal regulations. For this reason, it is known and customary to add odorant to the natural gas. As odorants are usually malodorous substances into consideration, which give the natural gas a sulfur-like odor. A widely used odorant is, for example, tetrahydrotiophene (THT). Furthermore, low-sulfur and sulfur-free odorants have also been used for several years.

Üblicherweise wird Ergas in den Gastransportnetzen (Ferntransportleitungen) odoriermittelfrei bereitgestellt, eine Odorierung erfolgt dann von dem Gasnetzbetreiber des betreffenden Gasverteilnetzes bei der Entnahme des Gases aus dem Gastransportnetz und dessen Druckreduzierung auf den in den Gasverteilnetzdruck vorherrschenden Druck. Hierzu wird ein flüssiges Odoriermittel über eine Odorieranlage in einer örtlichen Gas-Druckregel- und Messanlage (GDRM-Anlage) zugegeben. Die Zugabe erfolgt in Abhängigkeit der Größe eines normierten Gasvolumenstroms berechnet aus den Daten des Gaszählers sowie der Gastemperatur und dem Gasdruck. Eine entsprechende Menge an Odoriermittel wird mittels einer impulsgesteuerten Dosierpumpe einer Impfdüse zugeführt, die als in die Gasleitung eingesetztes Tauchrohr ausgeführt ist. Das Odoriermittel wird beispielsweise in Deutschland mit einem Wert von mindestens 10 mg/m3 Gasvolumen dem Gasstrom zugeführt. Dabei ist darauf zu achten, dass ein vorbestimmter Grenzwert, beispielsweise 10 mg/m3, während des gesamten Transports des Gases nicht unterschritten wird. Das Odoriermittel wird intermittierend dem in die Gasleitung eingesetzten Tauchrohr zugeführt, wobei das Tauchrohr von dem die Gasleitung durchströmenden Erdgas umströmt wird. Dabei verdampft das flüssige Odoriermittel und wird von dem Erdgas aufgenommen.Usually, natural gas is provided odoriermittelfrei in the gas transport networks (long distance transport lines), an odorization then takes place by the gas network operator of the relevant gas distribution network in the removal of the gas from the gas transport network and its pressure reduction to the pressure prevailing in the gas distribution network pressure. For this purpose, a liquid odorant is added via an odorizer in a local gas pressure regulating and measuring system (GDRM system). The addition takes place in dependence of the size of a standardized gas volume flow calculated from the data of the Gas meter and the gas temperature and the gas pressure. A corresponding amount of odorant is fed by means of a pulse-controlled metering pump a Impfdüse, which is designed as inserted into the gas pipe dip tube. The odorant is supplied to the gas stream, for example, in Germany with a value of at least 10 mg / m 3 of gas volume. It is important to ensure that a predetermined limit, for example, 10 mg / m 3 , is not exceeded during the entire transport of the gas. The odorant is intermittently supplied to the dip tube inserted into the gas line, wherein the dip tube is flowed around by the gas flowing through the gas line. The liquid odorant evaporates and is absorbed by the natural gas.

Da das Odoriermittel bei der Eindüsung in das Tauchrohr nicht zerstäubt wird und das Odoriermittel diskontinuierlich bzw. intermittierend in Gewichtskraftrichtung dem Tauchrohr zugeführt wird, ist nicht ausgeschlossen, dass das Odoriermittel nicht an dem oder in dem Tauchrohr verdunstet und dass nennenswerte Mengen flüssigem Odoriermittels durch den Gasstrom mitgerissen werden und unkontrolliert in der Gasleitung verteilt werden. So ist es in der Praxis bereits aufgetreten, dass sich nennenswerte Mengen flüssigen Odoriermittels unterhalb der Impfdüse in der Gasleitung sammeln.Since the odorant is not atomized during injection into the dip tube and the odorant is fed intermittently in the gravitational direction of the dip tube, it is not excluded that the odorant does not evaporate on or in the dip tube and that significant amounts of liquid odorant through the gas stream be entrained and distributed uncontrollably in the gas line. So it has already occurred in practice that accumulate significant amounts of liquid odorant below the Impfdüse in the gas line.

Da die Dosierung bedingt durch die Verwendung impulsgesteuerter Dosierpumpen diskontinuierlich erfolgt, sind die bekannten Odoriereinrichtungen mit dem Nachteil behaftet, dass bereits vor dem Verdunsten des Odoriermittels im Bereich der Impfstelle in der Gasleitung eine Nachdosierung erfolgen kann, sodass mit den bekannten Odoriereinrichtungen die Mindestodiermittelkonzentration im Gasstrom nur durch systematische Überdosierung sichergestellt werden kann. Dies ist unter Umweltgesichtspunkten und unter Kostengesichtspunkten weder sinnvoll noch wünschenswert.Since the dosage is discontinuous due to the use of pulse-controlled metering, the known Odoriereinrichtungen have the disadvantage that even before the evaporation of the odorant in the region of the injection point in the gas line can be followed by a re-dosing, so with the known odorizers the Mindestodiermittelkonzentration in the gas stream only can be ensured by systematic overdose. This is neither sensible nor desirable from an environmental and cost point of view.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung sowie ein Verfahren zur Odorierung eines Gasstroms in einem Gasnetz bereitzustellen, mit welchen die zuvor erwähnten Nachteile behoben werden.The invention is therefore based on the object to provide an apparatus and a method for odorizing a gas stream in a gas network, with which the aforementioned disadvantages are eliminated.

Der Erfindung liegt insbesondere die Aufgabe zugrunde, eine Vorrichtung zur Odorierung eines Gasstroms in einem Gasnetz sowie ein entsprechendes Verfahren bereitzustellen, mit welchem eine effektivere Dosierung des flüssigen Odoriermittels in den Gasstrom in Abhängigkeit der Größe eines durch die Gasleitung des Gasnetzes geförderten Gasvolumenstroms möglich ist.The invention is in particular the object of providing a device for odorization of a gas stream in a gas network and a corresponding method, with which a more effective metering of the liquid odorant in the gas stream in dependence on the size of a funded by the gas line of the gas network gas flow is possible.

Die Aufgabe wird gelöst mit den Merkmalen des Anspruchs 1 sowie mit den Merkmalen des Anspruchs 11. Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.,The object is achieved with the features of claim 1 and with the features of claim 11. Advantageous embodiments of the invention will become apparent from the dependent claims.

Eine Vorrichtung zur Odorierung eines Gasstroms in einem Gasnetz nach der Erfindung umfasst Mittel zur Bevorratung und Dosierung eines flüssigen Odoriermittels in Abhängigkeit der Größe eines durch eine Gasleitung des Gasnetzes geförderten Gasvolumenstroms, Mittel zur Injektion des Odoriermittels in die Gasleitung, wenigstens eine Einspeiseeinrichtung, die in der Gasleitung angeordnet ist sowie wenigstens einen gasdurchströmbaren und mit Odoriermittel benetzbaren Verdünstungskörper, der sich innerhalb der Gasleitung erstreckt und der wenigstens 50 % des freien Querschnitts der Gasleitung ausfüllt, wobei die wenigstens eine Einspeiseeinrichtung relativ zu den Verdünstungskörper so angeordnet ist, dass das aus der Impfdüse austretende Odoriermittel den Verdünstungskörper benetzt. Die Einspeiseeinrichtung ist vorzugsweise als Impfdüse ausgebildet.An apparatus for odorizing a gas stream in a gas network according to the invention comprises means for storing and metering a liquid odorant depending on the size of a gas flow through a gas line of the gas network, means for injecting the odorant in the gas line, at least one feed device, in the Gas line is arranged and at least one gas-permeable and wettable with odoriferous vaporizing body which extends within the gas line and which fills at least 50% of the free cross-section of the gas line, wherein the at least one feed device is arranged relative to the vaporizing body so that the emerging from the Impfdüse Odorant wetted the vaporizer body. The feed device is preferably designed as a vaccine.

Die Vorrichtung gemäß der Erfindung unterscheidet sich insbesondere dadurch vom Stand der Technik, dass ein gasdurchströmbarer und mit Odoriermittel benetzbarer Verdünstungskörper vorgesehen ist, der sich über einen wesentlichen Teil des freien Querschnitts der Gasleitung erstreckt und diesen Querschnitt so ausfüllt, dass dieser vollständig von dem durch die Gasleitung geführten Gasvolumenstrom zwangsdurchströmt ist, wobei der Verdünstungskörper eine erhöhte Oberfläche aufweist, die mit dem flüssigen Odoriermittel benetzbar ist, sodass letztendlich sichergestellt ist, dass das aus der Impfdüse austretende Odoriermittel nicht in Tropfenform mit dem Gasstrom mitgerissen wird, sodass eine quasi kontinuierliche Verdünstung des Odoriermittels erzielt werden kann, obwohl das Odoriermittel in flüssiger Form diskontinuierlich auf den Verdunstungskörper aufgebracht wird.The device according to the invention differs in particular from the prior art that a gas-flowable and wettable with odoriferous vaporizing body is provided which extends over a substantial part of the free cross-section of the gas line and this cross-section fills so that it completely from that through the Gas-flow guided gas volume flow is positively flowed through, wherein the evaporation body has an increased surface wettable with the liquid odorant, so that ultimately ensures that the exiting from the injection nozzle odorant is not entrained in the form of drops with the gas stream, so that a quasi-continuous evaporation of the Odorizer can be achieved, although the odorant is applied in liquid form discontinuously on the evaporation body.

Der Vorteil dieser Vorrichtung liegt auf der Hand, trotz stoßweiser oder intermittierender Zuführung flüssigen Odoriermittels wird ein annährend kontinuierlicher Verdampfungsmassenstrom erzeugt, und zwar durch die Bereitstellung einer erhöhten Verdunstungsfläche und einer erhöhten Benetzungskapazität bzw. Rückhaltekapazität für das Odoriermittel, und zwar unmittelbar im Bereich der Impfstelle bzw. im Bereich der Injektion des Odoriermittels in die Gasleitung.The advantage of this device is obvious, despite intermittent supply of liquid odorant, an approximately continuous vaporization mass flow is generated by providing an increased evaporation area and an increased wetting capacity for the odorant, directly in the area of the injection site in the area of injection of the odorant into the gas line.

Ein Odoriermittel im Sinne der vorliegenden Erfindung kann beispielsweise eine schwefelhaltige Verbindung wie Tetrahydrothiophen oder Ethylmercaptan oder Butylmercaptan oder auch schwefelarme und schwefelfreie organische Verbindungen auf Acrylatbasis in Betracht kommen.For the purposes of the present invention, an odorizing agent may be, for example, a sulfur-containing compound such as tetrahydrothiophene or ethylmercaptan or butyl mercaptan or also low-sulfur and sulfur-free organic compounds based on acrylate.

Als Mittel zur Dosierung und Injektion des Odoriermittels im Sinne der Erfindung kommt beispielsweise eine impulsgesteuerte Dosierpumpe in Betracht, beispielsweise als Kolbenpumpe, die über einen Impulsgeber gesteuert wird, wobei der Impulsgeber einen Steuerimpuls von einem Gaszähler bzw. einem Zustandmengenumwerter erhalten kann, der über einen Impulswandler aufbereitet wird.As a means for metering and injecting the odorant within the meaning of the invention, for example, a pulse-controlled metering pump, for example as a piston pump, which is controlled by a pulse generator, wherein the pulse generator can receive a control pulse from a gas meter or a Mengenmengenumwerter, via a pulse converter is processed.

Als Einspeiseeinrichtung im Sinne der vorliegenden Erfindung kommt beispielsweise eine einfache Lochdüse in Betracht, die beispielsweise einen Lochdurchmesser zwischen 0,05 mm und 2 mm aufweisen kann.As a feed device in the context of the present invention is for example a simple hole nozzle into consideration, which may for example have a hole diameter between 0.05 mm and 2 mm.

Der Verdunstungskörper gemäß der Erfindung ist nicht Teil der Einspeiseeinrichtung oder eines an der Einspeiseeinrichtung angeschlossenen Tauchrohres wie dies im Stand der Technik bekannt ist.The evaporation body according to the invention is not part of the feed device or of a dip tube connected to the feed device, as is known in the prior art.

Als Verdunstungskörper kann im einfachsten Fall eine im Gasstrom angeordnete Prallfläche, beispielweise in Form eines Lochblechs, vorgesehen sein. Alternativ kann als Verdunstungskörper ein Metallsieb oder ein feinmaschiges Metallgitter vorgesehen sein. Eine Einspeiseeinrichtung kann stromaufwärts des Verdunstungskörpers vor diesem angeordnet sein. Weiterhin können Einbauten vor oder hinter dem Verdunstungskörper in der Gasleitung angeordnet sein, sodass das von der Einspeiseeinrichtung eingesprühte Odoriermittel vor und hinter der Verdunstungsfläche bzw. dem Verdunstungskörper verwirbelt wird.In the simplest case, the evaporation body may be an impact surface arranged in the gas flow, for example in the form of a perforated plate. Alternatively, as the evaporation body, a metal mesh or a fine-meshed metal mesh be provided. A feed device may be arranged upstream of the evaporation body in front of this. Furthermore, internals can be arranged in front of or behind the evaporation body in the gas line, so that the sprayed from the feeder odorant is vortexed in front of and behind the evaporation surface or the evaporation body.

Bei einer vorteilhaften und zweckmäßigen Variante der Vorrichtung gemäß der Erfindung ist vorgesehen, dass der Verdunstungskörper sich über die gesamte lichte Weite und vorzugsweise über den gesamten lichten Querschnitt der Gasleitung erstreckt.In an advantageous and expedient variant of the device according to the invention it is provided that the evaporation body extends over the entire clear width and preferably over the entire clear cross section of the gas line.

Als Verdunstungskörper kann beispielsweise ein offenporiger Schaumkörper vorgesehen sein, vorzugsweise ein solcher, der eine gewisse Eigenstabilität aufweist, beispielsweise ein Hartschaumkörper.For example, an open-pored foam body may be provided as the evaporation body, preferably one which has a certain intrinsic stability, for example a hard foam body.

Geeignet und zweckmäßig als Verdunstungskörper im Sinne der vorliegenden Erfindung sind Schaumkörper, die eine durchströmbare Makroporenstruktur aufweisen.Suitable and useful as an evaporation body in the context of the present invention are foam bodies having a flow-through macroporous structure.

Unter einer Makroporenstruktur im Sinne der Erfindung ist offene Porenstruktur mit einem Porendurchmesser in der Größenordnung von Millimetern zu verstehen, beispielsweise können die Poren des Verdunstungskörpers einen Durchmesser zwischen 1 mm bis 10 mm, vorzugsweise zwischen 4 mm und 5 mm aufweisen.Under a macroporous structure in the context of the invention is open pore structure with a pore diameter in the order of millimeters to understand, for example, the pores of the evaporation body have a diameter between 1 mm to 10 mm, preferably between 4 mm and 5 mm.

Der Porendurchmesser der Makroporenstruktur des Schaumkörpers gemäß der Erfindung liegt vorzugsweise in der Größenordnung von Hundersteln des Innendurchmessers der Gasleitung.The pore diameter of the macroporous structure of the foam body according to the invention is preferably of the order of hundredths of the inner diameter of the gas pipe.

Die Gasleitung kann beispielsweise einen Innendurchmesser von 1000 mm bis 3000 mm aufweisen, in diesem Fall kann der Porendurchmesser des Schaumköpers zwischen 3 mm und 6 mm betragen, sodass durch den Verdunstungskörper innerhalb der Gasleitung keine nennenswerten Druckverluste erzeugt werden.The gas line may for example have an inner diameter of 1000 mm to 3000 mm, in this case, the pore diameter of the Schaumköpers be between 3 mm and 6 mm, so that no significant pressure losses are generated by the evaporation body within the gas line.

Zweckmäßig ist es, wenn der Schaumkörper als Metallschaum ausgebildet ist, beispielsweise als Aluminiumschaum. Alternativ kommen Metallschäume auf Eisen- oder Nickelbasis in Betracht. Beispielsweise können solche Metallschäume Anwendung finden, die im Schlickerreaktionsschaumsinter-Verfahren aus Eisenbasis- und Nickelbasispulver hergestellt wurden.It is expedient if the foam body is designed as a metal foam, for example as aluminum foam. Alternatively, metal foams based on iron or nickel come into consideration. For example, such metal foams can be used, which were prepared in Schlicker reaction foam sintering process of iron-based and nickel-based powder.

Im Rahmen der Erfindung können als Schaumkörper allerdings auch Kunststoffschaumkörper vorgesehen sein.In the context of the invention, however, foam bodies may also be provided as foam bodies.

Schließlich kann als Verdunstungskörper auch ein durchströmbares Gehäuse vorgesehen sein, welches eine Faserfüllung oder eine Lamellenstruktur umfasst.Finally, a flow-through housing which comprises a fiber filling or a lamellar structure can also be provided as the evaporation body.

Als Faserfüllung kann beispielsweise eine Metallwolle oder eine Stahlwolle vorgesehen sein. Alternativ hierzu können chemisch beständige Kunststofffasern in einem mit Durchströmungsöffnungen versehenen Gehäuse angeordnet sein.As fiber filling, for example, a metal wool or a steel wool can be provided. Alternatively, chemically resistant plastic fibers may be disposed in a housing provided with flow openings.

Bei einer zweckmäßigen und vorteilhaften Variante der Vorrichtung gemäß der Erfindung ist vorgesehen, dass die wenigstens eine Einspeiseeinrichtung in Strömungsrichtung vor dem Verdunstungskörper angeordnet ist. Dabei kann die Einspeiseeinrichtung so vor dem Verdünstungskörper angeordnet sein, dass die von der Einspeiseeinrichtung abgegebene Flüssigkeit bzw. das aus der Einspeiseeinrichtung austretende Odoriermittel in Tropfen- oder Tröpfchenform sich an den Verdunstungskörper niederschlägt und diesen benetzt. Das durch den Verdunstungskörper hindurchtretende Gas bewirkt dann eine Verdunstung des Odoriermittels, sodass das verdunstete Odoriermittel mit dem Gasstrom mitgeführt wird.In an expedient and advantageous variant of the device according to the invention, it is provided that the at least one feed device is arranged in the flow direction in front of the evaporation body. In this case, the feed device can be arranged in front of the evaporation body, that the liquid emitted by the feed device or the odorant emerging from the feed device in droplet or droplet form precipitates on the evaporation body and wets it. The gas passing through the evaporation body then causes the odorant to evaporate, so that the evaporated odorant is carried along with the gas stream.

Auch wenn vorstehend von wenigstens einer Einspeiseeinrichtung die Rede ist, kann im Rahmen der Erfindung eine Anordnung von mehreren Einspeiseeinrichtungen vorgesehen sein, die beispielsweise über den Querschnitt der Gasleitung verteilt angeordnet sein können.Even if the above is at least one feed device is mentioned, can be provided within the scope of the invention, an arrangement of a plurality of feed devices, which may be arranged distributed over the cross section of the gas line, for example.

Alternativ kann die wenigstens eine Einspeiseeinrichtung am Umfang der Gasleitung in die Gasleitung münden, wobei auch in diesem Falle mehrere Einspeiseeinrichtungen über ein Kreisbogensegment der Gasleitung verteilt angeordnet sein können.Alternatively, the at least one feed device can open into the gas line at the circumference of the gas line, wherein in this case several feed devices can be distributed over a circular arc segment of the gas line.

Bei einer zweckmäßigen Variante gemäß der Vorrichtung gemäß der Erfindung ist vorgesehen, dass die wenigstens eine Einspeiseeinrichtung in Schwerkraftrichtung oberhalb des Verdunstungskörpers angeordnet ist und vorzugsweise unmittelbar an diesen angeschlossen ist, sodass das aus der Einspeiseeinrichtung austretende Odoriermittel unmittelbar den Verdunstungskörper benetzt. Selbstverständlich kann die Einspeiseeinrichtung auch innerhalb des Verdunstungskörpers angeordnet sein.In an expedient variant according to the device according to the invention it is provided that the at least one feed device is arranged in the direction of gravity above the evaporation body and is preferably connected directly to this, so that the exiting from the feed odorant directly wets the evaporation body. Of course, the feed device can also be arranged within the evaporation body.

Schließlich kann bei einer Variante der Vorrichtung gemäß der Erfindung vorgesehen sein, dass der Verdunstungskörper in einer durchströmbaren und vorzugsweise austauschbaren Kassette angeordnet ist. Eine solche Variante der Anordnung des Verdunstungskörpers kann auch dann vorgesehen sein, wenn der Verdunstungskörper in Form eines Hartschaums selbsttragend stabil ausgebildet ist. Alternativ kann allerdings auch der Verdunstungskörper als offenporiger Weichschaumkörper ausgebildet sein, der in einer Kassette gehalten wird. Dann kann beispielsweise die Kassette als Ganzes austauschbar ausgebildet sein, ggf. kann der Verdunstungskörper ebenfalls aus der Kassette im Sinne einer Austauschbarkeit entnehmbar sein.Finally, it can be provided in a variant of the device according to the invention that the evaporation body is arranged in a flow-through and preferably exchangeable cassette. Such a variant of the arrangement of the evaporation body can also be provided when the evaporation body is designed to be self-supporting stable in the form of a rigid foam. Alternatively, however, the evaporation body can also be formed as an open-pored soft foam body, which is held in a cassette. Then, for example, the cassette as a whole can be exchangeable, if necessary, the evaporation body can also be removed from the cassette in the sense of interchangeability.

Bei einer vorteilhaften und zweckmäßigen Ausgestaltung der Vorrichtung gemäß der Erfindung ist vorgesehen, dass die wenigstens eine Einspeiseeinrichtung am führenden Ende eines sich radial in die Gasleitung erstreckenden Tauchrohrs angeordnet ist und eine Mündung der Einspeiseeinrichtung etwa co-axial zur Längsmittelachse und vorzugsweise in der Längsmittelachse der Gasleitung ausgerichtet ist.In an advantageous and expedient embodiment of the device according to the invention it is provided that the at least one feed device is arranged at the leading end of a radially extending into the gas pipe dip tube and an orifice of the feed device approximately co-axial to the longitudinal center axis and preferably in the longitudinal central axis of the gas line is aligned.

Bei einer weiteren vorteilhaften Variante der Vorrichtung gemäß der Erfindung kann vorgesehen sein, dass die wenigstens eine Einspeiseeinrichtung am Umfang der Gasleitung in eine hierfür vorgesehene Anschlussmuffe eingesetzt ist.In a further advantageous variant of the device according to the invention can be provided that the at least one feed device on Scope of the gas line is inserted into a connection sleeve provided for this purpose.

Die Anschlussmuffe kann beispielsweise als Entnahmeschleuse für die wenigstens eine Einspeiseeinrichtung oder für ein mit der wenigstens einen Einspeiseeinrichtung versehenes Tauchrohr ausgebildet sein.The connection sleeve can be designed, for example, as a removal lock for the at least one feed device or for a dip tube provided with the at least one feed device.

Unter einer Entnahmeschleuse im Sinne der vorliegenden Erfindung ist ein Rohrabschnitt zu verstehen, der dichtend an die Anschlussmuffe angeschlossen ist und der in Bezug auf die Gasleitung hermetisch absperrbar ist, sodass die Einspeiseeinrichtung im laufenden Betrieb der Gasleitung, d. h. ohne die Gasleitung abschiebern zu müssen, austauschbar ist. Ein Austausch im drucklosen Zustand ist selbstverständlich auch möglich.Under a removal lock in the context of the present invention, a pipe section is to be understood, which is sealingly connected to the connection sleeve and which is hermetically shut off with respect to the gas line, so that the feed device during operation of the gas line, d. H. without having to shunt the gas line is interchangeable. An exchange in the depressurized state is of course also possible.

Hierzu kann dann vorgesehen sein, die Einspeiseeinrichtung in die Entnahmeschleuse zu verbringen, die Entnahmeschleuse gegenüber der Gasleitung abzusperren und dann die Einspeiseeinrichtung aus der Entnahmeschleuse zu entnehmen.For this purpose, it may then be provided to spend the feed device in the removal lock, shut off the removal lock against the gas line and then remove the feed device from the removal lock.

Die der Erfindung zugrundeliegende Aufgabe wird weiterhin gelöst, durch ein Verfahren zur Odorierung eines Gasstroms umfassend die Dosierung und Injektion eines flüssigen Odoriermittels in einen Gasstrom in Abhängigkeit der Größe des durch die Gasleitung geförderten Gasvolumenstroms, wobei das Verfahren das Benetzen wenigstens eines innerhalb des Gasstroms angeordneten, porösen, gasdurchströmten Verdunstungskörpers mit dem Odoriermittel umfasst, wobei zumindest der überwiegende Anteil des Gasvolumenstroms durch den Verdunstungskörper hindurchgeführt wird und der Verdunstungskörper mit einer in Abhängigkeit der Höhe des Gasvolumenstroms dosierten Menge des Odoriermittels intermittierend benetzt wird.The object underlying the invention is further achieved by a method for odorizing a gas stream comprising metering and injecting a liquid odorant into a gas stream as a function of the size of the gas volume flow conveyed through the gas line, the method comprising wetting at least one within the gas stream, porous, gas-flowed evaporation body comprising the odorant, wherein at least the majority of the gas flow rate is passed through the evaporation body and the evaporation body is intermittently wetted with a metered in dependence on the height of the gas flow rate amount of the odorant.

Bevorzugt wird das Odoriermittel in Schwerkraftrichtung auf den Verdunstungskörper verrieselt.Preferably, the odorant is trickled in the direction of gravity on the evaporation body.

Alternativ kann das Odoriermittel stromaufwärts des Verdunstungskörpers in den Gasstrom eingedüst werden, vorzugsweise in diesem vernebelt werden.Alternatively, the odorant may be injected into the gas stream upstream of the evaporation body, preferably atomized therein.

Unter Vernebelung im Sinne der vorliegenden Erfindung ist eine Zerstäubung mittels einer bekannten Einstoff-Druckdüse zu verstehen, die eine Zerteilung der Flüssigkeit in feine Tropfen mit einer verhältnismäßig engen Tropfengrößenverteilung bewirkt. Hierzu können beispielsweise turbulenz- und strahlbildende oder lamellenbildende Düsen Anwendung finden.Nebulization in the sense of the present invention is understood to mean atomization by means of a known single-substance pressure nozzle, which causes a division of the liquid into fine droplets with a relatively narrow droplet size distribution. For example, turbulence and jet-forming or lamella-forming nozzles can be used for this purpose.

Unter Eindüsen im Sinne der vorliegenden Erfindung wird das Einbringen der Flüssigkeit durch eine Düsenöffnung beispielsweise mit einem Lochdurchmesser zwischen 0,05 und 0,2 mm verstanden, wobei das Eindüsen ohne zusätzliche kinetische Maßnahmen zur Tropfenzerteilung erfolgt.Injection in the sense of the present invention is understood to mean the introduction of the liquid through a nozzle opening, for example with a hole diameter of between 0.05 and 0.2 mm, the injection taking place without additional kinetic measures for the drop separation.

Das zuvor beschriebene Verfahren kann unter Verwendung der Vorrichtung mit den zuvor beschriebenen Merkmalen durchgeführt werden.The method described above can be carried out using the device with the features described above.

Die Erfindung wird nachstehend anhand zweier in den Zeichnungen dargestellten Ausführungsbeispielen erläutert.The invention will be explained below with reference to two embodiments shown in the drawings.

Es zeigen:

Figur 1
eine schematische Darstellung einer in einer Gasdruckregel- und Messstation,
Figur 2
eine perspektivische Ansicht eines Rohrleitungsabschnitts einer Gasleitung mit einer Impfdüse gemäß der Erfindung,
Figur 3
eine Stirnansicht des in Figur 2 dargestellten Rohrleitungsabschnitts,
Figur 4
einen Längsschnitt entlang der Linien IV-IV des in Figur 3 dargestellten Rohrleitungsabschnitts, wobei die Darstellung ein erstes Ausführungsbeispiel gemäß der Erfindung zeigt, und
Figur 5
eine der Figur 4 entsprechende Ansicht, wobei die Darstellung ein zweites Ausführungsbeispiel gemäß der Erfindung zeigt.
Show it:
FIG. 1
a schematic representation of a in a gas pressure regulating and measuring station,
FIG. 2
a perspective view of a pipe section of a gas line with a Impfdüse according to the invention,
FIG. 3
an end view of the in FIG. 2 illustrated pipeline section,
FIG. 4
a longitudinal section along the lines IV-IV of in FIG. 3 shown pipe section, wherein the illustration shows a first embodiment according to the invention, and
FIG. 5
one of the FIG. 4 corresponding view, the illustration shows a second embodiment according to the invention.

Es wird zunächst Bezug genommen auf die Figur 1, die den grundsätzlichen Aufbau einer Vorrichtung zur Odorierung eines Gasstroms gemäß der Erfindung veranschaulicht. Mit 1 ist ein Rohrleitungsabschnitt der Gasleitung 2 bezeichnet, der in Strömungsrichtung des Gases einem Gaszähler 3 nachgeschaltet ist. Die Vorrichtung zur Odorierung ist beispielsweise in einer GDRM-Anlage eines örtlichen Gasverteilnetzes angeordnet. In der Gasleitung 2 wird vorliegend aus einem Hochdrucktransportnetz Erdgas für das Gasdruckverteilnetz mit einem reduzierten Druck bereitgestellt.It is first referred to the FIG. 1 , which illustrates the basic structure of a device for odorization of a gas stream according to the invention. 1 with a pipe section of the gas line 2 is referred to, which is connected downstream of a gas meter 3 in the flow direction of the gas. The device for odorizing is arranged for example in a GDRM system of a local gas distribution network. In the gas line 2, natural gas for the gas pressure distribution network is provided at a reduced pressure from a high-pressure transport network.

In Strömungsrichtung hinter dem Gaszähler 3 wird ein flüssiges Odoriermittel beispielsweise in Form von THT in die Gasleitung 2 über eine als Impfdüse 4 ausgebildete Einspeiseeinrichtung 4 eingebracht. Das Odoriermittel kann über die Impfdüse 4 in den Gasstrom eingespritzt, eingetropft und zerstäubt werden, je nach Auslegung der Impfdüse 4.In the flow direction behind the gas meter 3, a liquid odorant, for example in the form of THT, is introduced into the gas line 2 via a feed device 4 designed as a seed nozzle 4. The odorant can be injected via the injection nozzle 4 in the gas stream, dripped and atomized, depending on the design of the Impfdüse. 4

Das Odoriermittel wird einem Odoriermittelgebinde 5 entnommen und der Impfdüse 4 über eine Dosierpumpe 6 zugeführt. Die Dosierpumpe 6 ist über ein Steuergerät 7 mit dem Gaszähler 3 verbunden. Der Gaszähler 3 liefert über einen Zustandsmengenumwerter 8 eine Information an einen in der Figur nicht dargestellten Impulsgeber, der wiederum Steuerimpulse an das Steuergerät 7 vermittelt. Über das Steuergerät 7 erhält die Dosierpumpe 6 entsprechende Ansteuerungssignale, die jeweils in Injektionshübe der beispielsweise als Kolbenpumpen ausgebildeten Dosierpumpe 6 umgesetzt werden. Der Impulsgeber kann beispielsweise als Torzähler oder dergleichen ausgebildet sein.The odorant is removed from an odorant package 5 and fed to the seed nozzle 4 via a metering pump 6. The metering pump 6 is connected via a control unit 7 to the gas meter 3. The gas meter 3 supplies information about a pulse generator (not shown in the figure) via a quantity corrector 8, which in turn conveys control pulses to the control unit 7. Via the control unit 7, the metering pump 6 receives corresponding control signals, which are respectively implemented in injection strokes of the metering pump 6 designed, for example, as piston pumps. The pulse generator may be formed, for example, as a gate counter or the like.

Der dem Gaszähler nachgeschaltete Rohrleitungsabschnitt 1 ist perspektivisch in Figur 2 dargestellt. Dieser kann beispielsweise eine umfänglich vorgesehene Anschlussmuffe 10 in Form einer Anschweißmuffe aufweisen, in welche die Impfdüse 4 eingesetzt ist.The gas meter downstream pipe section 1 is in perspective in FIG. 2 shown. This can for example have a circumferentially provided connection sleeve 10 in the form of a weld-on, in which the Impfdüse 4 is inserted.

Im Falle des Ausführungsbeispiels gemäß der Figuren 3 und 4 umfasst die Impfdüse 4 einen Düsenkörper, der in das führende Ende eines Tauchrohres eingesetzt ist oder an diesem vorgesehen ist. Das Tauchrohr 11 und der Düsenkörper können einstückig ausgebildet sein, diese können allerdings auch mehrteilig ausgebildet sein. Der Einfachheit halber wird im Folgenden die gesamte Anordnung bestehend aus Tauchrohr 11 und Düsenkörper als Impfdüse 4 bezeichnet.In the case of the embodiment according to the FIGS. 3 and 4 For example, the seed nozzle 4 includes a nozzle body inserted in or provided to the leading end of a dip tube. The dip tube 11 and the nozzle body may be integrally formed, but these may also be formed in several parts. For the sake of simplicity, the entire arrangement consisting of immersion tube 11 and nozzle body will be referred to as vaccination nozzle 4 below.

Das Tauchrohr 11 erstreckt sich etwa bis in die Längsmittelachse des Rohrleitungsabschnitts 1 und die Mündung der Impfdüse 4 ist co-axial zur Längsmittelachse des Rohrleitungsabschnitts 1 ausgerichtet. Diese kann sich, muss sich jedoch nicht, in der Längsmittelachse des Rohrleitungsabschnitts erstrecken.The dip tube 11 extends approximately into the longitudinal central axis of the pipe section 1 and the mouth of the injection nozzle 4 is aligned coaxially to the longitudinal center axis of the pipe section 1. This may, but need not, extend in the longitudinal center axis of the pipe section.

In Strömungsrichtung hinter der Impfdüse 4 ist eine den gesamten freien Querschnitt des Rohrleitungsabschnitts 1 ausfüllende Kassette 12 angeordnet, die einen Verdunstungskörper umschließt oder einen Verdunstungskörper bildet. In dem dargestellten Ausführungsbeispiel ist der Verdunstungskörper nicht dargestellt, gezeigt ist lediglich die Einfassung des Verdunstungskörpers in Form der Kassette 12, die beispielsweise einen Verdunstungskörper in Form eines Metallschaums/Hartschaums aufnehmen kann. In diesem Fall ist nur eine randseitige Einfassung des scheibenförmigen Verdünstungskörpers erforderlich. Die Kassette 12 bildet nur eine umfängliche und randseitige Einfassung.In the flow direction behind the Impfdüse 4 a the entire free cross section of the pipe section 1 filling cassette 12 is arranged, which encloses an evaporation body or forms an evaporation body. In the illustrated embodiment, the evaporation body is not shown, only the enclosure of the evaporation body in the form of the cassette 12 is shown, which can accommodate, for example, an evaporation body in the form of a metal foam / rigid foam. In this case, only a marginal enclosure of the disc-shaped Verdunstungskörpers is required. The cassette 12 forms only a peripheral and peripheral enclosure.

Die Kassette 12 kann allerdings auch als allseits geschlossene Dose ausgebildet sein und mit einer Füllung, beispielsweise in Form von Stahlwolle oder dergleichen versehen sein und so insgesamt einen Verdunstungskörper im Sinne der vorliegenden Erfindung bilden. In diesem Falle sind die frontseitige und rückseitige Begrenzung der Kassette 12 (scheibenförmig) als Lochbleche oder Siebe ausgebildet.However, the cassette 12 can also be designed as a can closed on all sides and be provided with a filling, for example in the form of steel wool or the like, thus forming a total of an evaporation body according to the present invention. In this case, the front and rear boundaries of the cassette 12 (disc-shaped) are formed as perforated plates or sieves.

Wie insbesondere der Figur 4 zu entnehmen ist, wird das über die Impfdüse 4 in den Gasstrom eingebrachte Odoriermittel vom Gasstrom mitgenommen, sodass es den in Strömungsrichtung nachgeschalteten Verdunstungskörper benetzt.How the particular FIG. 4 can be seen, the introduced via the Impfdüse 4 in the gas stream odorant is taken from the gas stream, so that it wets the downstream in the flow direction of evaporation body.

Über den Verdunstungskörper erfolgt eine sukzessive Abgabe des Odoriermittel an den Gasstrom.About the evaporation body is a successive delivery of the odorant to the gas stream.

Eine alternative Ausgestaltung der erfindungsgemäßen Vorrichtung ist in Figur 5 dargestellt. Aus Gründen der Vereinfachung ist dort nur ein Längsschnitt durch den Rohrleitungsabschnitt 1 entsprechend der Figur 4 dargestellt, wobei gleiche Bauteile mit gleichen Bezugszeichen versehen sind.An alternative embodiment of the device according to the invention is in FIG. 5 shown. For reasons of simplification there is only a longitudinal section through the pipe section 1 according to the FIG. 4 represented, wherein the same components are provided with the same reference numerals.

Bei der in Figur 5 dargestellten Variante der Vorrichtung zur Odorierung gemäß der Erfindung ist die Impfdüse 4 oberhalb des Verdunstungskörpers bzw. oberhalb der Kassette 12 angeordnet, wobei die Düsenöffnung der Impfdüse 4 in etwa senkrecht in Bezug auf die gedachte Längsmittelachse des Rohrleitungsabschnitts 1 ausgerichtet ist und diese unmittelbar oberhalb des Verdunstungskörpers in den Rohrleitungsabschnitt 1 einmündet, sodass das aus der Impfdüse 4 austretende Odoriermittel unmittelbar in den Verdunstungskörper bzw. in die Kassette 12 verrieselt.At the in FIG. 5 illustrated variant of the device for odorizing according to the invention, the Impfdüse 4 is disposed above the evaporation body or above the cartridge 12, wherein the nozzle opening of the Impfdüse 4 is aligned approximately perpendicular with respect to the imaginary longitudinal central axis of the pipe section 1 and this immediately above the evaporation body opens into the pipe section 1, so that the exiting from the injection nozzle 4 odorant directly into the evaporation body or in the cassette 12 trickles.

Obwohl in den beiden zuvor beschrieben Ausführungsbeispielen der Verdunstungskörper (nicht gezeigt) wenigstens umfänglich von einer Kassette 12 eingefasst ist, ist die Erfindung so zu verstehen, dass der Verdunstungskörper unmittelbar in den Rohrleitungsabschnitt 1 an der betreffenden Stelle eingesetzt sein kann.Although in the two previously described embodiments, the evaporation body (not shown) is enclosed at least peripherally by a cassette 12, the invention is to be understood that the evaporation body can be inserted directly into the pipe section 1 at the relevant point.

Abgesehen von dem Unterschied zwischen dem ersten und zweiten Ausführungsbeispiel, dass bei dem ersten Ausführungsbeispiel die Impfdüse 4 stromaufwärts des Verdunstungskörpers angeordnet ist und beim zweiten Ausführungsbeispiel die Impfdüse 4 bezogen auf die Gasströmung auf der gleichen Höhe mit dem Verdunstungskörper und oberhalb dessen angeordnet ist, entsprechen die Merkmale der beiden Ausführungsformen der Erfindung einander, insbesondere kann die Ausbildung des Verdunstungskörpers gleich sein.Apart from the difference between the first and second embodiments that in the first embodiment, the seed nozzle 4 is disposed upstream of the evaporation body and in the second embodiment, the seed nozzle 4 is arranged with respect to the gas flow at the same level with the evaporation body and above, correspond Features of the two embodiments of the invention each other, in particular, the formation of the evaporation body can be the same.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
RohrleitungsabschnittPipeline section
22
Gasleitunggas pipe
33
Gaszählergas Meter
44
Einspeiseeinrichtung, ImpfdüseInfeed device, vaccine nozzle
55
OdoriermittelgebindeOdoriermittelgebinde
66
Dosierpumpemetering
77
Steuergerätcontrol unit
88th
ZustandsmengenumwerterCorrector
1010
Anschlussmuffecoupling bush
1111
Tauchrohrdip tube
1212
Kassettecassette

Claims (14)

Vorrichtung zur Odorierung eines Gasstroms in einem Gasnetz umfassend Mittel zur Bevorratung und Dosierung eines flüssigen Odoriermittels in Abhängigkeit der Größe eines durch die Gasleitung (2) des Gasnetzes geförderten Gasvolumenstroms, Mittel zur Injektion des Odoriermittels in die Gasleitung (2), wenigstens eine Einspeiseeinrichtung (4), die in der Gasleitung (2) angeordnet ist sowie wenigstens einen gasdurchströmbaren und mit Odoriermittel benetzbaren Verdunstungskörper, der sich innerhalb der Gasleitung (2) erstreckt und der wenigstens 50 % des freien Querschnitts der Gasleitung (2) ausfüllt, wobei die wenigstens eine Einspeiseeinrichtung (4) relativ zu dem Verdünstungskörper so angeordnet ist, dass das aus der Einspeiseeinrichtung (4) austretende Odoriermittel den Verdunstungskörper benetzt.Apparatus for odorizing a gas stream in a gas network, comprising means for storing and metering a liquid odorant depending on the size of a gas volume flow conveyed through the gas line (2) of the gas network, means for injecting the odorant into the gas line (2), at least one feed device (4 ), which is arranged in the gas line (2) and at least one gas-permeable and wettable with odoriferous evaporation body which extends within the gas line (2) and which fills at least 50% of the free cross-section of the gas line (2), wherein the at least one feed device (4) is arranged relative to the evaporation body so that the odorant exiting the feed device (4) wets the evaporation body. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Verdunstungskörper sich über die gesamte lichte Weite und vorzugsweise über den gesamten lichten Querschnitt der Gasleitung (2) erstreckt.Apparatus according to claim 2, characterized in that the evaporation body extends over the entire clear width and preferably over the entire clear cross-section of the gas line (2). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Verdunstungskörper einen offenporigen Schaumkörper umfasst oder als offenporiger Schaumkörper ausgebildet ist, wobei der Schaumkörper vorzugsweise ein Hartschaumkörper ist.Apparatus according to claim 1 or 2, characterized in that the evaporation body comprises an open-pore foam body or is formed as an open-pore foam body, wherein the foam body is preferably a hard foam body. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der Schaumkörper eine durchströmbare Makroporenstruktur aufweist und dass dieser vorzugsweise als Metallschaum ausgebildet ist.Apparatus according to claim 3, characterized in that the foam body has a flow-through macroporous structure and that this is preferably formed as a metal foam. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die wenigstens eine Einspeiseeinrichtung (4) in Strömungsrichtung vor dem Verdunstungskörper oder in dem Verdunstungskörper angeordnet ist.Device according to one of claims 1 to 4, characterized in that the at least one feed device (4) is arranged in the flow direction in front of the evaporation body or in the evaporation body. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die wenigstens eine Einspeiseeinrichtung (4) in Schwerkraftrichtung oberhalb des Verdunstungskörpers angeordnet ist, und vorzugsweise unmittelbar an diesen angeschlossen istDevice according to one of claims 1 to 4, characterized in that the at least one feed device (4) is arranged in the direction of gravity above the evaporation body, and is preferably connected directly to this Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Verdunstungskörper in einer durchströmbaren und vorzugsweise austauschbaren Kassette (12) angeordnet ist.Device according to one of claims 1 to 6, characterized in that the evaporation body is arranged in a flow-through and preferably exchangeable cassette (12). Vorrichtung nach einem der Ansprüche 1 bis 5 oder 7, dadurch gekennzeichnet, dass die wenigstens eine Einspeiseeinrichtung (4) am führenden Ende eines sich radial in die Gasleitung erstreckenden Tauchrohres (11) angeordnet ist und eine Mündung der Einspeiseeinrichtung (4) etwa co-axial zur Längsmittelachse und vorzugsweise etwa in der Längsmittelachse der Gasleitung (2) ausgerichtet ist.Device according to one of claims 1 to 5 or 7, characterized in that the at least one feed device (4) is arranged at the leading end of a radially extending into the gas pipe dip tube (11) and an orifice of the feed device (4) approximately co-axially is aligned to the longitudinal central axis and preferably approximately in the longitudinal central axis of the gas line (2). Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die wenigstens eine Einspeiseeinrichtung (4) am Umfang der Gasleitung (2) in eine Anschlussmuffe (10) eingesetzt ist.Device according to one of claims 1 to 8, characterized in that the at least one feed device (4) on the circumference of the gas line (2) in a connection sleeve (10) is inserted. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Anschlussmuffe (10) als Entnahmeschleuse für die wenigstens eine Einspeiseeinrichtung (4) oder einen mit der wenigstens einen Einspeiseeinrichtung (4) versehenes Tauchrohr (11) ausgebildet ist.Apparatus according to claim 9, characterized in that the connecting sleeve (10) as a removal lock for the at least one feed device (4) or with the at least one feed device (4) provided with dip tube (11) is formed. Verfahren zur Odorierung eines Gasstroms umfassend die Dosierung und die Injektion eines flüssigen Odoriermittels in einem Gasstrom in Abhängigkeit der Größe des durch die Gasleitung geförderten Gasvolumenstroms, wobei das Verfahren das Benetzen wenigstens eines innerhalb des Gasstroms angeordneten porösen, gasdurchströmten Verdunstungskörpers mit dem Odoriermittel umfasst, wobei der überwiegende Anteil des Gasvolumenstroms durch den Verdunstungskörper hindurchgeführt wird und der Verdunstungskörper mit einer in Abhängigkeit der Höhe des Gasvolumenstroms dosierten Menge des Odoriermittels vorzugsweise intermittierend benetzt wird.A method of odorizing a gas stream comprising metering and injecting a liquid odorant in a gas stream depending on the size of the gas volume flow delivered through the gas conduit, the method comprising wetting at least one porous gas-flowed evaporative body within the gas stream with the odorant; the majority of the gas volume flow is passed through the evaporation body and the evaporation body with a metered depending on the height of the gas flow rate amount of odorant is preferably intermittently wetted. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass das Odoriermittel in Schwerkraftrichtung auf den Verdunstungskörper verrieselt wird.A method according to claim 11, characterized in that the odorant is trickled in the direction of gravity on the evaporation body. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass das Odoriermittel stromaufwärts des Verdunstungskörpers in den Gasstrom eingedüst wird oder in diesen vernebelt wird.A method according to claim 11, characterized in that the odorant is injected upstream of the evaporation body in the gas stream or is atomized in this. Verfahren nach einem der Ansprüche 11 bis 13, gekennzeichnet durch die Verwendung der Vorrichtungen mit den Merkmalen eines der Ansprüche 1 bis 10.Method according to one of claims 11 to 13, characterized by the use of the devices having the features of one of claims 1 to 10.
EP15158410.9A 2014-04-16 2015-03-10 Device and method for odorising a gas flowing in a gas network Active EP2933015B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014005550.7A DE102014005550B4 (en) 2014-04-16 2014-04-16 Device and method for odorizing a gas stream in a gas network

Publications (2)

Publication Number Publication Date
EP2933015A1 true EP2933015A1 (en) 2015-10-21
EP2933015B1 EP2933015B1 (en) 2019-03-06

Family

ID=52672173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15158410.9A Active EP2933015B1 (en) 2014-04-16 2015-03-10 Device and method for odorising a gas flowing in a gas network

Country Status (3)

Country Link
EP (1) EP2933015B1 (en)
DE (1) DE102014005550B4 (en)
DK (1) DK2933015T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017128495A1 (en) 2017-11-30 2019-06-06 Westnetz Gmbh Apparatus and method for odorizing a gas stream in a gas line
CN110129095A (en) * 2019-06-06 2019-08-16 河南城建学院 One kind directly preparing methane device based on coal chemistry chain gasification
WO2020229293A1 (en) * 2019-05-16 2020-11-19 Westnetz Gmbh Injection device for the injection of a liquid odorant into a gas stream flowing through a gas pipeline, use thereof and method for producing the same
EP4303481A1 (en) * 2022-06-29 2024-01-10 Westnetz GmbH Device and method for providing an odorized natural gas and hydrogen mixture

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015217814A1 (en) * 2015-09-17 2017-03-23 Rwe Deutschland Ag Device for feeding a liquid odorant into a gas network
DE202018103234U1 (en) * 2018-06-08 2018-07-25 Gas-Anlagenbau Petzold GmbH Odoration device, odorization nozzle, change lock
DE102020117208A1 (en) 2020-06-30 2021-12-30 Westnetz Gmbh Feeding device and device for feeding a liquid odorant into a gas stream flowing through a gas line and their use

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501809A1 (en) * 1974-01-18 1975-09-18 Sun Oil Co Pennsylvania Controlled injection of additive fluid into main fluid - e.g. addn of odoriser into liquefied fuel gases
US5304327A (en) * 1992-07-13 1994-04-19 Welker Engineering, Inc. Mercaptan injection apparatus for use with a pipeline
US7137569B1 (en) * 2005-04-05 2006-11-21 Kenco International, Inc. Chemical injector
US20070245718A1 (en) * 2006-04-24 2007-10-25 Cheng C R Exhaust aftertreatment mixer with stamped muffler flange
WO2011095734A1 (en) * 2010-02-05 2011-08-11 Peugeot Citroën Automobiles SA Exhaust line for an internal combustion engine
FR2957119A1 (en) * 2010-03-02 2011-09-09 Peugeot Citroen Automobiles Sa Exhaust fumes reducing product mixing chamber for catalytic converter of vehicle i.e. motor vehicle, has reducing product injection device injecting reducing product at periphery of zone of chamber
EP2368625A1 (en) * 2010-03-22 2011-09-28 Sulzer Chemtech AG Method and device for dispersion

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD59604A (en) *
US2279705A (en) * 1938-08-08 1942-04-14 Standard Oil Co California Liquefied gas odorizer and method of using same
RO120932B1 (en) * 2003-11-25 2006-09-29 Ioan-Francisc Iosif-Gabriel Moisin Installation and process for odorizing natural gas

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2501809A1 (en) * 1974-01-18 1975-09-18 Sun Oil Co Pennsylvania Controlled injection of additive fluid into main fluid - e.g. addn of odoriser into liquefied fuel gases
US5304327A (en) * 1992-07-13 1994-04-19 Welker Engineering, Inc. Mercaptan injection apparatus for use with a pipeline
US7137569B1 (en) * 2005-04-05 2006-11-21 Kenco International, Inc. Chemical injector
US20070245718A1 (en) * 2006-04-24 2007-10-25 Cheng C R Exhaust aftertreatment mixer with stamped muffler flange
WO2011095734A1 (en) * 2010-02-05 2011-08-11 Peugeot Citroën Automobiles SA Exhaust line for an internal combustion engine
FR2957119A1 (en) * 2010-03-02 2011-09-09 Peugeot Citroen Automobiles Sa Exhaust fumes reducing product mixing chamber for catalytic converter of vehicle i.e. motor vehicle, has reducing product injection device injecting reducing product at periphery of zone of chamber
EP2368625A1 (en) * 2010-03-22 2011-09-28 Sulzer Chemtech AG Method and device for dispersion

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017128495A1 (en) 2017-11-30 2019-06-06 Westnetz Gmbh Apparatus and method for odorizing a gas stream in a gas line
WO2019105954A1 (en) 2017-11-30 2019-06-06 Westnetz Gmbh Device and method for odorizing a gas stream in a gas line
WO2020229293A1 (en) * 2019-05-16 2020-11-19 Westnetz Gmbh Injection device for the injection of a liquid odorant into a gas stream flowing through a gas pipeline, use thereof and method for producing the same
CN110129095A (en) * 2019-06-06 2019-08-16 河南城建学院 One kind directly preparing methane device based on coal chemistry chain gasification
EP4303481A1 (en) * 2022-06-29 2024-01-10 Westnetz GmbH Device and method for providing an odorized natural gas and hydrogen mixture

Also Published As

Publication number Publication date
DK2933015T3 (en) 2019-06-03
EP2933015B1 (en) 2019-03-06
DE102014005550A1 (en) 2015-10-22
DE102014005550B4 (en) 2024-05-02

Similar Documents

Publication Publication Date Title
EP2933015B1 (en) Device and method for odorising a gas flowing in a gas network
DE2106794C3 (en) Dispenser for oral or nasal application of individual doses of a finely divided drug
DE602005005081T2 (en) FLOW CONTROLLED LOW PRESSURE POWDER DISTRIBUTOR
EP1047488A1 (en) Device for supplying a reduction agent into an exhaust-gas purification system
EP0653218A1 (en) Atomizer device
EP3717139B1 (en) Device and method for odorizing a gas stream in a gas line
EP3969547A1 (en) Injection device for the injection of a liquid odorant into a gas stream flowing through a gas pipeline, use thereof and method for producing the same
DE102015217814A1 (en) Device for feeding a liquid odorant into a gas network
AT507433B1 (en) AIR LUBRICATOR
DE1806897B2 (en) DOSING DEVICE FOR DOSED ADDITION OF ONE LIQUID TO A SECOND LIQUID
WO2011116892A1 (en) Two-component internal mixing nozzle arrangement and method for atomizing a liquid
WO2009046466A1 (en) Device for introducing gas into a fluid
DE826486C (en) Method and device for enriching the air with medicaments by atomization
WO2022218695A1 (en) Inhalation actuator, insert and inhalation device
DD143546A1 (en) METHOD AND DEVICE FOR TRANSFERRING AEROSOLS
DD205336A1 (en) FIRE LOESCHER
DD254173A1 (en) COMBINED APPLICATION OF AGROCHEMICALS BY AGENT AIR CONSUMPTION PLANT ON AGRICULTURAL VEHICLES
DE358722C (en) Device for atomizing medicaments poured onto a porous mass by means of steam
DE102022116154A1 (en) Device and method for providing an odorized natural gas and hydrogen mixture
AT503643B1 (en) Device for supplying gas into liquid, comprises tube shaped filter fabric, inner tube, which has gas discharge openings distributed over its length and which is enclosed by radial distance, and liquid inlet and liquid outlet
DE102011101322A1 (en) Device for conditioning of liquid manure in fertilizer metering device in manure vehicle, has conditioning mobile base comprising mobile base support, where storage container is provided on mobile base for storing liquid manure
DE488991C (en) Device for inhaling two narcotic or therapeutic agents, one of which is gaseous (laughing gas) and the other liquid (ether), as well as a nutrient gas (oxygen)
DE102008005251A1 (en) Method and device for introducing substances, in particular water-storing substances, into and / or near the root region of a plant
DE102009020502A1 (en) Device for use in pharmaceutical products bottling plant to produce artificial mist, has probe that is connected to one of chambers via line for mist, and compressed air passage opening that is arranged between chambers
DE1575049A1 (en) Nebulizers, in particular for nebulizing drugs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20160420

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20170213

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181001

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1103802

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015008194

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: DENNEMEYER AG, CH

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20190528

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190606

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190607

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190606

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190706

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015008194

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190706

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190310

26N No opposition filed

Effective date: 20191209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150310

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502015008194

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B01F0005040000

Ipc: B01F0025300000

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190306

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230402

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240320

Year of fee payment: 10

Ref country code: LU

Payment date: 20240321

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20240318

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240321

Year of fee payment: 10

Ref country code: GB

Payment date: 20240322

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240320

Year of fee payment: 10

Ref country code: DK

Payment date: 20240321

Year of fee payment: 10

Ref country code: BE

Payment date: 20240320

Year of fee payment: 10