EP3969547A1 - Dispositif d'injection destiné à l'injection d'un agent odorant liquide dans un flux de gaz s'écoulant à travers une conduite de gaz, son utilisation et son procédé de production - Google Patents

Dispositif d'injection destiné à l'injection d'un agent odorant liquide dans un flux de gaz s'écoulant à travers une conduite de gaz, son utilisation et son procédé de production

Info

Publication number
EP3969547A1
EP3969547A1 EP20724500.2A EP20724500A EP3969547A1 EP 3969547 A1 EP3969547 A1 EP 3969547A1 EP 20724500 A EP20724500 A EP 20724500A EP 3969547 A1 EP3969547 A1 EP 3969547A1
Authority
EP
European Patent Office
Prior art keywords
injection device
odorant
gas
inflow
venturi
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.)
Pending
Application number
EP20724500.2A
Other languages
German (de)
English (en)
Inventor
Sascha Niebialek
Steffen RIEBLING
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.)
Westnetz GmbH
Original Assignee
Westnetz GmbH
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 Westnetz GmbH filed Critical Westnetz GmbH
Publication of EP3969547A1 publication Critical patent/EP3969547A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0075—Nozzle arrangements in gas streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3123—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements
    • B01F25/31232—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof with two or more Venturi elements used simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3125—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characteristics of the Venturi parts
    • B01F25/31253—Discharge
    • B01F25/312532—Profiled, grooved, ribbed discharge conduit, or being provided with baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2486—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device with means for supplying liquid or other fluent material to several discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/02—Mixing fluids
    • F17C2265/025—Mixing fluids different fluids
    • F17C2265/027—Mixing fluids different fluids with odorizing

Definitions

  • Injection device for injecting a liquid odorant into a gas stream flowing through a gas line, its use and method for its production
  • the invention relates to an injection device for injecting a liquid
  • Injection device has a flow body for positioning in the gas flow in a gas line.
  • the invention also relates to the use of
  • Injection device a method for its production and a device for odorizing a gas flow in a gas line comprising such a device
  • odorants for example a sulfur-like odor
  • An example of a widely used odorant is tetrahydrothiophene (THT).
  • THT tetrahydrothiophene
  • low-sulfur and sulfur-free odorants have also been used for some years. Normally, natural gas is provided odorant-free in the gas transport networks (long-distance transport lines). This is then odorized
  • a liquid odorant is typically added via an odorization system in a local gas pressure control and measuring system (GDRM system).
  • GDRM system local gas pressure control and measuring system
  • the odorant is generally added in proportion to the amount of gas that has flowed through, in particular as a function of the size of a standardized gas volume flow calculated from the data from the gas meter and the gas temperature and gas pressure.
  • the odorant THT is supplied to the gas flow with a value of at least 10 mg / m 3 gas volume.
  • a predetermined limit value for example of 10 mg / m 3 for THT, is not fallen below during the entire distribution of the gas.
  • a corresponding amount of odorant is supplied by means of a pulse-controlled metering pump to an inoculation nozzle, which is designed as a dip tube with an evaporation body inserted into the line, onto which the inoculation nozzle is fed
  • Odorant is applied in liquid form.
  • the gas flow in the gas line flows against the evaporation body, so that the evaporating odorant gets into the gas flow and odorizes it.
  • Another odorization system is based on the principle of the two-substance pressure nozzle, in which an additional gas flow atomizes the odorant through a two-substance pressure nozzle. Such systems allow reliable atomization of the odorant, but require an additional feed line for the additional gas flow with a pressure that is higher than the gas pressure in the gas line, which increases the installation effort.
  • the present invention is based on the object of an injection device for injecting a liquid odorant into a gas flow flowing through a gas line, which can be installed with little installation effort, and a device for odorizing a gas flow with such a gas flow
  • Another object of the present invention is to provide a use of such an injection device and a method for producing such an injection device. This task is performed with an injection device for injecting the liquid
  • Odorant in a gas stream flowing through a gas line having an inflow body for positioning in the gas stream in a gas line, achieved according to the invention in that the inflow body has a Venturi nozzle with a Venturi nozzle channel running between an inflow opening and an outflow opening, the Venturi nozzle channel Channel has a region that is narrowed in cross section and into which an odorant feed line provided for supplying a liquid odorant opens.
  • Venturi nozzle into which an odorant feed line opens, can reliably atomize the odorant with little installation effort can be achieved.
  • the gas flow flowing in the gas line flows directly against the Venturi nozzle, so that it flows through the Venturi nozzle channel.
  • the odorant can be very finely atomized with a Venturi nozzle integrated into a flow body, whereby a larger surface of the odorant, ie the finely atomized droplets of the odorant, can be achieved, which then the evaporation process or the
  • Odorisation process improved so that the odorant can evaporate as completely as possible.
  • the inflow body is for positioning in the gas flow in a gas line
  • the injection device is particularly so
  • Injection device is positioned in the gas line.
  • the Venturi nozzle When properly installed, the Venturi nozzle can in particular be aligned such that a gas flow in a gas line can flow against it.
  • a gas flow in a gas line can therefore, in particular, flow directly onto the inflow opening.
  • a separate supply line for one of the Venturi nozzle for one of the Venturi nozzle
  • the inflow opening and the outflow opening of the Venturi nozzle can in particular be arranged on opposite sides of the inflow body.
  • a device for odorizing a gas flow in a gas line comprising such an injection device, the injection device being connected to a Gas line is connected, that the inflow body is arranged in the gas line.
  • the device preferably further comprises an odorant source connected to the injection device, for example an odorant container, so that, during operation, odorant passes from the odorant source through the odorant supply line into the Venturi nozzle. Between the odorant source and the injection device, the device can control means for controlling the
  • the gas line can in particular be a gas line for natural gas for
  • the gas flow in the gas line can in particular be a gas flow composed of natural gas, hydrogen and / or synthetic natural gas.
  • the injection device, its use and the device are described below, with the individual
  • the inflow body has several Venturi nozzles, each of the several Venturi nozzles having one between a respective one
  • the injection device has an inflow opening and a respective outflow opening running Venturi nozzle channel with a tapered area in cross section, into which a respective odorant feed line for a liquid odorant opens.
  • Providing the multiple Venturi nozzles on an inflow body of an injection device has the advantage that the installation effort is reduced since only the inflow body of the injection device has to be arranged and aligned in the gas line in order to install the multiple Venturi nozzles.
  • the injection device has mounting means for mounting the injection device on a gas line. In this way, the injection device can be more easily mounted on a gas line and the
  • Inflow body are positioned in the gas line. They are accordingly
  • Mounting means and the inflow body in particular aligned with one another in such a way that when the assembly means are used as intended for mounting on a gas line, the inflow body is arranged in the gas line.
  • the mounting means can, for example, be a mounting element for inserting the injection device into a sleeve attached to the gas line, for example a mounting element with a thread for screwing into such a sleeve. This makes installation of the
  • the mounting element can, for example, be adapted to a standardized% "socket.
  • the inflow body can be connected directly to the assembly means, in particular to the assembly element.
  • the inflow body and the assembly means can be manufactured in one piece.
  • the inflow body can be indirectly connected to the mounting means, for example via a frame that is connected on the one hand to the mounting means and on the other hand the
  • Inflow body carries.
  • the inflow body has an axial one
  • Extension direction in which the inflow body extends starting from the area of the mounting means and several of the Venturi nozzles are arranged offset to one another in the direction of the axial extension direction.
  • a Venturi nozzle can be arranged at various points in the cross section of the gas line, whereby a more effective odorization of the entire gas flow flowing through the gas line is made possible.
  • This configuration also simplifies the geometry of the inflow, which simplifies the manufacture of the inflow and improves its robustness.
  • Venturi nozzle channels at least two Venturi nozzles of the inflow body have directions of extension which run at an angle to one another, in particular at an angle of
  • the at least two Venturi nozzles run at such an angle to one another in relation to a section plane perpendicular to the axial direction of extent.
  • the direction of extent is as parallel as possible to the direction of the
  • Venturi nozzle channels arranged at an angle to one another ensure that at least one or more Venturi nozzle channels of the inflow body are aligned essentially parallel to the direction of the gas flow over a larger angular range, so that the effectiveness of the odorization is less dependent on the precise alignment of the inflow body with the gas flow depends.
  • one or more Venturi nozzles are arranged at the outflow opening. In this way, the gas emerging from the Venturi nozzle is swirled with the atomized odorant, whereby a better distribution of the atomized or evaporated odorant in the gas flow in the gas line is achieved.
  • the flow breaker elements can be designed in one piece with the inflow body, in particular if the inflow body is made by additive manufacturing will be produced. Alternatively, the flow breaker elements can also be attached to the inflow body at a later date.
  • the injection device has an inlet for connecting an odorant source with which the one or more
  • Odorant supply lines are connected in a liquid-conducting manner.
  • the inlet is preferably arranged in an area of the injection device that is arranged outside the gas line when installed as intended,
  • Injection device connected and the odorant supply lines are supplied with odorant during operation.
  • a distributor channel is preferably provided in the inflow body, via which the individual odorant supply lines are connected to the inlet.
  • Suitable materials for the inflow body are, in particular, ceramic, metal and / or plastic.
  • the inflow body is correspondingly in a further one
  • Embodiment preferably made of ceramic, metal and / or plastic.
  • the inflow body is a one-piece body into which the one or more Venturi nozzle channels and odorant feed lines are let. Compared to one of several individual parts
  • composite inflow body can so a higher stability and / or
  • Tightness of the ducts or supply lines running inside the inflow can be achieved.
  • the inflow body is a component produced by additive manufacturing.
  • Additive manufacturing is also commonly referred to as 3D printing.
  • the inflow body with the one or more Venturi nozzles and odorant supply lines as well as a possibly existing distribution channel is a quite complex component with internal channels and lines, the manufacture of which with conventional manufacturing processes is complex or - depending on the geometry - may not be possible.
  • additive manufacturing enables complex structures with internal channels and lines to be manufactured economically and in one piece.
  • FFF Fused filament fabrication
  • STA stereolithography
  • the above-mentioned object is further achieved according to the invention by a method for manufacturing the injection device described above, in which the injection device is at least partially manufactured by additive manufacturing, the inflow body being manufactured by additive manufacturing by a body with one or more Venturi nozzles embedded therein Channels and odorant supply lines are manufactured additively.
  • FIG. 1 shows an example of a device for odorizing a gas flow in a
  • Gas pipe, 2 shows an embodiment of the injection device according to the invention for injecting a liquid odorant into a through a
  • FIG. 3 shows a side sectional view of the injection device from FIG. 2
  • FIGS. 4a-c show different sectional views of the injection device from FIG. 2
  • FIGS. 6a-b show a further exemplary embodiment of the invention
  • FIG. 1 initially shows the structure of a device for odorizing a gas flow from the prior art in a schematic representation.
  • FIG. 1 a pipe section 1 of a gas line 2 is shown, which is connected downstream of a gas meter 3 in the direction of flow of the gas.
  • the device for odorization can for example in a GDRM system of a local
  • Be arranged gas distribution network In the present case, natural gas is provided in the gas line 2 from a high-pressure transport network for the gas pressure distribution network at a reduced pressure.
  • a liquid odorant for example in the form of THT, is introduced into the gas line 2 via an injection device 4.
  • the odorant is removed from an odorant container 5 and fed to the injection device 4 via a metering pump 6.
  • the metering pump 6 is connected to the gas meter 3 via a control device 7.
  • the gas meter 3 supplies the control device 7 with information about the gas volume flow in the gas line 2 and the control device 7 controls the metering pump 6 in such a way that the metering pump 6 conveys an amount of odorant to the injection device 4 that is adapted to the gas volume flow.
  • a flow meter 9 can be provided which measures the odorant volume flow pumped by the metering pump 6.
  • a level meter 10 can be provided to measure the level in the
  • a non-return valve 11 is preferably provided between the metering pump 6 and the injection device 4 in order to prevent a gas flow from the gas line 2 to the odorant container 5.
  • FIG. 2 shows a schematic side view
  • FIG. 3 shows a schematic side sectional view of the injection device 20 corresponding to the section plane "III" shown in FIGS. 4a-c.
  • FIGS. 4a-c show further schematic sectional views of the injection device 20 in different sectional planes 2 and 3, "IVa” denotes the sectional plane of FIG. 4a, "IVb" the sectional plane of FIG. 4b and "IVc" the sectional plane of FIG. 4c.
  • FIG. 5 also shows, in a schematic representation, the use of the injection device 20 for injecting a liquid odorant 22 into a gas stream 26 flowing through a gas line 24 and, as device 28, an exemplary embodiment of the device with the injection device 20.
  • the injection device 20 comprises an essentially cylindrical one
  • Inflow body 30 and mounting means 32 in the form of one, preferably with one
  • Thread 34 of the mounting element provided 36 whose external geometry is dimensioned so that it - as shown in FIG. 5 - in a sideways attached to a gas conduit 24 sleeve 38, for example, a standard 3/4 "sleeve used can be preferably screwed,,,.
  • the flow body 30 In the assembled state (see FIG. 5), the flow body 30 is positioned in the gas line 24 in such a way that the gas flow 26 flows against it.
  • the inflow body 30 extends from the mounting element 36 in an axial direction of extent A and has three Venturi nozzles 40a-c offset from one another in the axial direction of extent A, each of which has a Venturi nozzle channel running between an inflow opening 42a-c and an outflow opening 44a-c 46a-c.
  • the Venturi nozzle channels 46a-c each have an im
  • the odorant supply lines 50a-c are as shown in FIG. 3 via a
  • Distribution channel 52 is connected to an inlet 54 arranged on the mounting element 36, which in the assembled state (see FIG. 5) is arranged outside the gas line 24 and to which an odorant source 56 can be connected, for example in the form of an odorant container 58, in order to supply the odorant.
  • an odorant source 56 can be connected, for example in the form of an odorant container 58, in order to supply the odorant.
  • the Venturi nozzle channels 46a-c have respective directions of extent KA, KB and Kc, in which the respective Venturi nozzle channels 46a-c extend from the
  • Inflow opening 42a-c extend to outflow opening 44a-c.
  • Extension directions KA, KB and Kc run at angles to one another in relation to a sectional plane perpendicular to the axial extension direction A of the inflow body 30.
  • the angle ⁇ between KA and KB and the angle ⁇ between KB and Kc are preferably in the range from 5 ° to 45 °, for example 10 °.
  • FIG. 5 now shows the use of the injection device 20 for injecting a liquid odorant into a gas stream 26 flowing through the gas line 24 as well as the device 28 with the injection device 20.
  • the injection device 20 with the mounting element 36 is provided on the side of the gas line 24
  • the sleeve 38 is screwed in so that the inflow body 30 protrudes into the gas line 24 and the gas flow flows against it.
  • the direction of flow of the gas flow 26 is not always possible exactly when the mounting element 36 is screwed into the sleeve.
  • the extension directions KA, KB and Kc of the Venturi nozzle channels 46a-c which run at an angle to one another, ensure that, even if the inflow body 30 is rotated with respect to the gas line 24, one or more of the Venturi nozzles 40a-c in
  • the device 28 further comprises the odorant source 56 in the form of an odorant container 58, which is connected to the outside of the odorant via a supply line 60
  • Gas line 24 arranged inlet 54 of the injection device 20 is connected.
  • the inflow body (such as the inflow body 30) is with the
  • Venturi nozzles 40a-c, the odorizing agent feed lines 50a-c and in particular the distribution channel 52 are a very complex component with inner channels and lines.
  • the manufacture of the inflow body 30 using conventional manufacturing methods is quite complex and will generally require the production of several separate individual parts, which are then assembled to form the inflow body.
  • an inflow body such as the inflow body 30 can be manufactured in one piece with the Venturi nozzles 40a-c, the odorant feed lines 50a-c and the distribution channel 52.
  • the mounting element 36 can also be produced by additive manufacturing, possibly in one piece with the inflow body 30. However, it is also conceivable that
  • Assembly element 36 to be manufactured conventionally and then to be connected to the inflow body 30.
  • FIGS. 6a-b show a further embodiment of the injection device according to the invention.
  • the injection device 70 has a similar structure to the injection device 20 from FIG.
  • Injection device 70 in addition to the inflow body 72 shown in FIG. 6a, also has a mounting element (not shown) such as mounting element 36.
  • the injection device 70 differs from the injection device 20 in the structure of the inflow body.
  • the inflow body 72 of the inflow body 72 of the inflow body 72 differs from the injection device 20 in the structure of the inflow body.
  • FIG. 6a shows the one marked in FIG. 6a by the dashed frame
  • the inflow body 72 has a plurality of Venturi nozzles, of which five Venturi nozzles 74a-e are shown in FIG. 6a, each of which - as in the case of the injection device 20 - has a Venturi nozzle channel running from an inflow opening 76a-e to an outflow opening 78a-e 80a-e with a tapered region 82a-e into which an odorant supply line 84a-e opens. In FIG. 6b, this is shown by way of example with the odorant supply line 84b for the Venturi nozzle 74b.
  • the Venturi nozzles 74a-e are as shown in Fig. 6a in the direction of the axial
  • Extension direction A of the inflow body 72 arranged offset to one another.
  • odorant supply lines 84a-e of the Venturi nozzles 74a-e are shown in the area of the opening in the respective Venturi nozzle channel 80a-e in the form of injection needles.
  • the odorant feed lines 84a-e of the Venturi nozzles 74a-e can also open directly into the wall of the Venturi nozzle channels 80a-e, which simplifies the manufacture of the inflow body 72, in particular a one-piece manufacture.
  • the Venturi nozzle channels 80a-e are parallel to one another in FIG. 6a
  • Extension directions LA - LE effective odorization of the gas stream 26 flowing in a gas line 24 can be achieved if the inflow body 72 is precisely aligned so that the directions of extension of the Venturi nozzle channels 80a-e run parallel to the gas stream 26.
  • the directions of extension of several of the Venturi nozzle channels 80a-e can also run at an angle to one another, as in the case of the inflow body 30, so that effective odorization is achieved even with a less precise alignment of the inflow body 72 in the gas line 24.
  • Flow breaker elements 86 are provided, through which the gas flow emerging from the Venturi nozzle channel 80a-e is swirled, whereby a better
  • flow breaker elements can also be provided at the outflow openings 44a-c of the inflow body 30.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

L'invention concerne un dispositif d'injection (20, 70) destiné à l'injection d'un agent odorant liquide (22) dans un flux de gaz (26) s'écoulant à travers une conduite de gaz (24), le dispositif d'injection (20, 70) présentant un corps d'écoulement (30, 72) destiné à être positionné dans le flux de gaz (26) dans une conduite de gaz (24), le corps d'écoulement (30, 72) présentant une buse de Venturi (40a-c, 74a-e) dotée d'un canal de buse de Venturi (46a-c, 74a-e) s'étendant entre une ouverture d'entrée (42a-c, 76a-e) et une ouverture de sortie (44a-c, 76a-e), le canal de buse de Venturi (46a-c, 74a- e) présentant, dans la section transversale, une zone de rétrécissement (48a-c, 82a-e) dans laquelle débouche une conduite d'alimentation en agent odorant (50a-c, 84a-e) servant à introduire un agent odorant liquide (22). L'invention concerne en outre l'utilisation du dispositif d'injection (20, 70) pour l'odorisation d'un flux de gaz (26) dans une conduite de gaz (24), un moyen (28) pour l'odorisation d'un flux de gaz (26) dans une conduite de gaz (24) comprenant le dispositif d'injection (20, 70) ainsi qu'un procédé de production du dispositif d'injection (20, 70).
EP20724500.2A 2019-05-16 2020-05-07 Dispositif d'injection destiné à l'injection d'un agent odorant liquide dans un flux de gaz s'écoulant à travers une conduite de gaz, son utilisation et son procédé de production Pending EP3969547A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019112964.8A DE102019112964A1 (de) 2019-05-16 2019-05-16 Injektionseinrichtung zur Injektion eines flüssigen Odoriermittels in einen durch eine Gasleitung strömenden Gasstrom, deren Verwendung und Verfahren zu deren Herstellung
PCT/EP2020/062688 WO2020229293A1 (fr) 2019-05-16 2020-05-07 Dispositif d'injection destiné à l'injection d'un agent odorant liquide dans un flux de gaz s'écoulant à travers une conduite de gaz, son utilisation et son procédé de production

Publications (1)

Publication Number Publication Date
EP3969547A1 true EP3969547A1 (fr) 2022-03-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20724500.2A Pending EP3969547A1 (fr) 2019-05-16 2020-05-07 Dispositif d'injection destiné à l'injection d'un agent odorant liquide dans un flux de gaz s'écoulant à travers une conduite de gaz, son utilisation et son procédé de production

Country Status (3)

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EP (1) EP3969547A1 (fr)
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DE102022113593A1 (de) 2022-05-30 2023-11-30 Westnetz Gmbh Kompakte Mischungsvorrichtung zur Mischung von Fluiden
DE102022116154A1 (de) 2022-06-29 2024-01-04 Westnetz Gmbh Vorrichtung und Verfahren zum Bereitstellen eines odorierten Erdgas- und Wasserstoff-Gemisches

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US4845952A (en) * 1987-10-23 1989-07-11 General Electric Company Multiple venturi tube gas fuel injector for catalytic combustor
DE4135878A1 (de) * 1991-10-31 1993-05-06 Helmut Dipl.-Phys. 6759 Hohenoellen De Gehm Verfahren und vorrichtungen zum erzeugen grosser phasengrenzflaechen in gas/fluessig-systemen
DE10160709B4 (de) * 2001-12-11 2015-12-17 Tpi - Tecnimont Planung Und Industrieanlagenbau Gmbh Vorrichtung zum Mischen einer gasförmigen und einer flüssigen Komponente im überkritischen Bereich
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FR3006610B1 (fr) * 2013-06-10 2015-07-03 Gdf Suez Systeme et procede d'injection d'odorisant liquide dans une canalisation de gaz naturel
DE102014005550B4 (de) * 2014-04-16 2024-05-02 Rwe Deutschland Ag Vorrichtung und Verfahren zur Odorierung eines Gasstroms in einem Gasnetz

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