EP3433584A1 - Measuring device, combustible gas supply device with said type of measuring device and internal combustion engine with said type of combustible gas supply device - Google Patents
Measuring device, combustible gas supply device with said type of measuring device and internal combustion engine with said type of combustible gas supply deviceInfo
- Publication number
- EP3433584A1 EP3433584A1 EP17727790.2A EP17727790A EP3433584A1 EP 3433584 A1 EP3433584 A1 EP 3433584A1 EP 17727790 A EP17727790 A EP 17727790A EP 3433584 A1 EP3433584 A1 EP 3433584A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- recess
- measuring device
- base body
- recesses
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
- G01K13/024—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
Definitions
- the invention relates to a measuring device for measuring at least one physical property of a fluid, a fuel gas supply device for an internal combustion engine with such a measuring device, and an internal combustion engine with such
- the appropriate measuring technology is about a factor of 20 more expensive than conventional, not
- the invention is based on the object, a measuring device, a
- Fuel gas supply device for an internal combustion engine with such
- Measuring device and an internal combustion engine with such
- the object is achieved in particular by providing a measuring device for measuring at least one physical property of a fluid, which has a base body closed along a circumferential line.
- the main body engages around a first, the main body in the axial direction passing recess, wherein the base body also has at least a second, the main body in the axial direction passing through recess.
- At least one sensor device for measuring the at least one physical property which can be brought into operative connection with the first recess, can be assigned to the main body. Due to the fact that the main body has the first recess and the second recess, it can in particular in a double-walled fluid line, in particular a
- Fuel gas line can be used, wherein a first combustible fluid, in particular fuel gas, can be passed through the first recess, and wherein a second, non-combustible fluid, in particular an inert gas or purging air, can be passed through the second recess.
- a first combustible fluid in particular fuel gas
- a second, non-combustible fluid in particular an inert gas or purging air
- Sensor device can be used, which is not designed explosion-proof.
- the sensor device can be arranged on the measuring device in a simple and cost-effective manner, wherein it can also be configured cost-saving itself.
- the second recess is fluidically separated from the first recess. In this way, the first fluid and the second fluid can be guided separately through the measuring device.
- a physical property of a fluid is understood here to be, in particular, a physical quantity which describes a state of the fluid, in particular a fluid
- Thermodynamic state variable of the fluid is under a
- a circumferential line is understood in particular to mean a line that extends around the
- Axialraum of the body extends around, wherein the circumferential line is preferably a closed perimeter is. It may be a circular circumferential line, which surrounds the axial direction preferably concentric. However, other shapes of circumferential lines are also possible, along which the base body is designed to be closed, for example oval or elliptical, polygonal, in particular rectangular or square, or even hexagonal geometries.
- the course of the circumferential line preferably determines a shape which, viewed in plan view, that is to say along the axial direction, the base body has.
- Basic body is intended to flow through a fluid.
- the first recess is preferably formed centrally on the base body, in particular preferably represents a central recess of the base body. It is possible that the first recess - seen in plan view - is round, in particular circular in shape; but there are also other Umrandungsformen the recess possible.
- the first recess passes through the base body, so it is preferably formed as a through hole.
- the second recess is preferably formed as a through hole and
- a passage area of the second recess is preferably smaller than a passage area of the first recess.
- the second recess preferably has a smaller diameter than the first recess.
- the second recess is preferably arranged radially outwardly of the first recess.
- a radial direction is understood to mean a direction which is perpendicular to the axial direction and intersects it, wherein it is in particular also perpendicular to the circumferential line. Since the base body engages around the first recess, it is arranged, as it were, in an interior of the base body.
- radially outward accordingly refers to a direction that faces away from the interior of the main body, so that the second recess is located at a greater distance from an imaginary central axis arranged inside the main body than the first recess, wherein preferably the imaginary central axis passes through a center of the first recess.
- the fact that the second recess is fluidically separated from the first recess means, in particular, that the measuring device is configured such that, at least in the assembled position Condition of the at least one sensor device is no fluid connection between the first recess and the second recess.
- a sensor device is understood in particular to mean a device which is suitable for measuring the at least one physical property of the fluid, in particular a thermodynamic state variable thereof.
- the body is at least one
- the measuring device thus has the sensor device.
- the measuring device is set up to have the sensor device, without actually having the sensor device already.
- the main body preferably has - seen in plan view - a round, in particular circular shape. This represents a particularly simple and particularly inexpensive
- the base body has a plurality of second recesses, which are preferably arranged around the first recess around.
- a larger passage area can be provided for a second fluid guided through the second recesses, without the aid of this
- the second recesses are arranged around the first recess, they can readily connect outer chambers of a double-walled pipeline, while the first recess can connect together inner chambers of the pipeline.
- the second recesses are arranged concentrically around the first recess. In this case, they are particularly preferably arranged on a circular line around the first recess, in particular symmetrically or uniformly distributed.
- the base body has three, four, six, eight, ten or twelve second recesses.
- a first fluid connection between at least two second recesses is provided, particularly preferably all second recesses are in the first with each other Fluid communication.
- the second recesses can communicate with one another, and a fluid passing through the second recesses can also be brought to other points of the basic body via the first fluid connection.
- Such a first fluid connection can be established on the base body, for example, on the front side. But it is also possible that such a first fluid connection - especially if the
- Base body is produced by prototyping, for example by sintering, metal injection molding and / or produced by a generative manufacturing process - is also internally, that is formed in an interior of the body, for example, as an inner loop around the first recess around.
- the base body has two end faces, namely a first end face and a second end face facing away from the first end face in the axial direction.
- an end face is to be understood as meaning, in particular, a side or surface bounding the base body, on which the axial direction is substantially perpendicular, preferably vertical. That the first
- Recess and open the at least one second recess in the front side means in particular that the first recess and the at least one second recess completely enforce the body along the axial direction, ie in particular as
- a first sealing device is arranged on at least one of the end faces-viewed in the radial direction-between the first recess and the at least one second recess. In this way, the first recess and the second recess can be sealed against each other at least when mounted sensor device.
- the first sealing device is preferably designed as a circumferential sealing device.
- the first sealing device preferably has a first annular groove in which an elastic seal, in particular an O-ring can be arranged.
- the first sealing device preferably has a first O-ring, which is arranged in the first annular groove.
- the base body has at least two second recesses, wherein the first fluid connection between the at least two second recesses is formed on at least one of the two end sides.
- the first fluid connection between at least two second recesses can be formed in a particularly simple manner on the front side, in particular by machining of the
- the first fluid connection may in particular be formed as a groove connecting the at least two second recesses, in particular as circumferentially extending, preferably circumferential second annular groove.
- Sealing device is arranged.
- the term "radially outward" means that the second sealing device is spaced farther from the imaginary center axis of the measuring device than the at least one second recess, in this way the entire arrangement of recesses, namely the first and second recesses, relative to an external environment of the Measuring device to be sealed by means of the second sealing device.
- the second sealing device seen in the circumferential direction - circumferentially formed. It may in particular have a groove, preferably a third annular groove, in which an elastic seal, in particular an O-ring, can be arranged.
- the second sealing device preferably has a second O-ring which is arranged in the third annular groove running around in the circumferential direction.
- the measuring device has both the first sealing device and the second sealing device. It is then a seal in particular two concentrically arranged sealing devices, in particular over two concentrically arranged O-rings in concentric sealing ring grooves, possible. This results in a very good seal of the measuring device.
- the base body has at least one radial bore for receiving the at least one sensor device.
- the at least one sensor device can then be arranged radially on the base body in a simple manner.
- the radial bore is formed as a threaded bore, so that the
- Sensor device can be screwed into the radial bore in a simple and at the same time stable and secure manner.
- the radial bore is preferably in fluid communication with the first recess. Depending on the configuration of the sensor device, it is possible that the
- Radial bore is designed as a stepped bore, in particular a
- the sensor device is designed as a pressure sensor, which is fluid-connected to the first recess via the smaller-diameter region of the radial bore.
- the radial bore formed as a threaded bore preferably has a load-bearing thread length according to an IEC standard applicable to the day determining the priority of the present application.
- at least two, preferably more, additional supporting threads are preferably provided, so that an accidental release of the sensor device first an audible pressure drop occurs without the sensor device due to a
- a puncture channel is preferably provided between the radial bore and the at least one second recess, or between the radial bore and the first fluid connection between at least two second recesses, in particular a puncture channel to a frontal groove connecting the second recesses.
- the radial bore it is also possible for the radial bore to be connected directly to the first fluid connection between at least two second recesses, in particular if the first fluid connection is formed on the inside, in particular in the case of a basic molded body.
- the measuring device flows along the second recess in particular an inert gas or a purge gas, in particular scavenging air, it being possible that the pressure in the second recess is larger - especially in the case of an inert gas - or smaller - especially in the case of scavenging air - than a pressure in the first recess.
- the radial bore is rinsed, wherein at a leak - depending on
- the measuring device has a pressure sensor as the at least one sensor device. So the measuring device points a sensor device which is designed as a pressure sensor. Alternatively or additionally, the measuring device preferably has a temperature sensor as the at least one
- thermodynamic state variables of a fluid passing through the first recess detectable by the measuring device are thermodynamic state variables of a fluid passing through the first recess detectable by the measuring device.
- the pressure sensor is preferably designed as an absolute pressure sensor.
- it has, in particular, an end-side measuring diaphragm which is in fluid communication with the first recess during operation of the measuring device, the measuring diaphragm being in fluid communication with the first one
- the pressure sensor Recess side remote with an evacuated or with an inert gas, in particular with nitrogen at low pressure, filled chamber communicates, which is designed as a support space for the membrane.
- the pressure sensor By means of the chamber evacuated or filled with inert gas at low pressure, the pressure sensor itself realizes the principle of double-walledness - in particular in the region of the radial bore of the measuring device - so that the measuring device as a whole satisfies high safety requirements.
- the pressure sensor is preferably designed as a piezoresistive, as a capacitive or other type of pressure sensor. It preferably has a galvanic separation between an electrical measuring sensor system and an electrical supply voltage, or it is designed as a so-called simple electrical operating means, wherein an operating current, an operating voltage and / or a capacitance
- the pressure sensor on both sides - that is radially inwardly and outwardly - by means of suitable sealing devices, preferably O-rings - and / or sealed by its thread, so that in this respect the principle of Doppelwandtechnik is also realized by the pressure sensor.
- the temperature sensor preferably has a protective cover, which is an actual
- Measuring element of the temperature sensor separates from the fluid flowing in the first recess. In this way, the temperature sensor itself realizes the principle of
- the temperature sensor is preferably designed as a simple electrical equipment or with a galvanic isolation.
- the sensor device preferably has a double seal, which additionally contributes to the safety of the measuring device.
- the inclusion of the sensor device, in particular the radial bore, meets the requirement for a flameproof seal both in a guide region and in a threaded region.
- the Threaded versions on the sensor device and the radial bore are preferably in accordance with the DIN standard DIN EN 60079-1, device protection by flameproof enclosure "d", which complies with the version governing the priority of the present application.
- the thread fit is preferably in accordance with ISO 965 -3 in the version in force on the day which determines the period of validity of the present application.
- the base body is designed as a flange for arrangement between two pipe sections, wherein the
- Pipe sections each having a first and a second chamber, wherein the first chambers are fluidically separated from the second chambers.
- the first recess of the main body is formed with each other for fluid communication of the first chambers of the pipe sections, and the at least one second recess is formed for fluid communication of the second chambers of the pipe sections with each other.
- the basic body designed as a flange is therefore in particular designed to connect two double-walled bodies
- Pipe sections in particular a fuel gas line.
- a fuel gas is preferably passed through a first, inner chamber, wherein the first, inner chamber is radially outwardly annularly surrounded by a second, outer chamber, wherein in the second, outer chamber, an inert gas is arranged or purge air flows. If air is provided as purge gas, it is preferable to rinse with a 30-fold space change. In this case, it is preferably provided that the purge gas pressure in the second chamber is smaller than the fuel gas pressure in the first chamber.
- the measuring device bridges both chambers of the pipe sections and thus realized in the area of
- Measuring device itself the principle of Doppelwandtechnik. It is possible that the base body is designed for arrangement between two flanges of the two pipe sections. In particular, it is possible that the base body is designed as a sandwich flange. It is possible that the main body own
- Mounting holes in particular threaded holes has. It is also possible that the base body has a smaller diameter than the flanges of the
- Pipe sections so that it can be clamped between the pipe sections by the two flanges of the pipe sections are bolted radially outside of the Grandismes together and so clamp the body between them.
- the measuring device which is arranged in particular as a measuring flange at a separation point of a fuel gas line, realizes a substantially increased security, since all
- Seal parts in particular O-rings, are completely covered by the measuring flange.
- O-ring seals FPM / FKM elastomers (fluorinated rubber), which have a permissible operating range of -20 ° C to 200 ° C, in the short term up to 230 ° C.
- the result is a very small amount of leakage even in case of fire in case of destruction of the O-rings, since in addition to the O-ring seal a complete metallic contact of the end faces of the flange is maintained in particular by Flanschverschraubung.
- the degree of coverage of the metallic contact surfaces between the end faces of the measuring device on the one hand and in particular flanges of pipe sections on the other meets requirements for effective gap lengths and requirements
- the seals can cover large temperature ranges, which are prescribed by classification societies, in particular for the classification of maritime applications of internal combustion engines.
- the measuring device - preferably including flanges of pipe sections with which the measuring device is connected - with a
- Fire protection sleeve is covered.
- Measuring device having fitting is covered with a fire sleeve.
- the base body an additional sensor device can be assigned, which can be brought into operative connection with the at least one second recess.
- an additional sensor device can be assigned, which can be brought into operative connection with the at least one second recess.
- the main body is an additional sensor device
- Active compound is.
- an additional pressure sensor for measuring the
- Inertgas horrs or scavenging air pressure may be provided in the second recess.
- the measuring device equipped with the at least one sensor device can be tested separately, independently of a line or fuel gas supply device, in particular with regard to its functionality, acceptance and / or ratification.
- Overall measuring device - including the sensor device - can be constructed inexpensively and simply, in particular, a cost-effective sensor device can be used.
- the object is also achieved by a fuel gas supply device for a
- Internal combustion engine which has an at least partially double-walled fuel gas line.
- the fuel gas line is associated with a measuring device according to one of the embodiments described above.
- Fuel gas supply device in particular, the advantages that already in
- Fuel gas supply device preferably the measuring device according to one of the embodiments described above.
- the fuel gas supply device preferably has two pipe sections, wherein the measuring device between the
- Pipe sections is arranged and connects them together.
- the main body of the measuring device is preferably designed as a flange, whereby the
- Measuring device itself is preferably designed as a measuring flange, wherein the measuring device is arranged between flanges of the pipe sections of the fuel gas line.
- Embodiments has. In connection with the internal combustion engine, in particular, the advantages that already in connection with the
- the internal combustion engine is preferably designed as a reciprocating engine. It is possible that the internal combustion engine is arranged to drive a passenger car, a truck or a commercial vehicle. In a preferred embodiment, the internal combustion engine is the drive in particular heavy land or water vehicles, such as mine vehicles, trains, the internal combustion engine in a
- Locomotive or a railcar is used, or by ships. It is also possible to use the internal combustion engine to drive a defense vehicle, for example a tank.
- An exemplary embodiment of the internal combustion engine is preferably also stationary, for example, for stationary power supply in emergency operation,
- the internal combustion engine in this Case preferably a generator drives. Also a stationary application of
- Internal combustion engine for driving auxiliary equipment such as fire pumps on oil rigs
- auxiliary equipment such as fire pumps on oil rigs
- an application of the internal combustion engine in the field of promoting fossil raw materials and in particular fuels, for example oil and / or gas possible.
- the internal combustion engine is preferably designed as a diesel engine, as a gasoline engine, as a gas engine for operation with natural gas, biogas, special gas or another suitable gas.
- the internal combustion engine is designed as a gas engine, it is suitable for use in a cogeneration plant for stationary power generation.
- the internal combustion engine is particularly preferably designed as a gas engine, in particular for marine applications, or for stationary applications.
- the gas engine in particular for marine applications, or for stationary applications.
- the internal combustion engine is in particular configured for operation with at least one
- Fuel gas as fuel wherein the internal combustion engine is preferably adapted for operation with a methane-containing fuel gas as fuel, in particular natural gas, LNG (Liquefied Natural Gas), CNG (Compressed Natural Gas), or the like.
- a methane-containing fuel gas as fuel in particular natural gas, LNG (Liquefied Natural Gas), CNG (Compressed Natural Gas), or the like.
- Figure 1 is an illustration of an embodiment of a measuring device
- FIG. 2 shows a sectional view through the measuring device according to FIG. 1.
- Fig. 1 shows a first representation - in plan view - an embodiment of a
- the measuring device 1 for measuring at least one physical property of a fluid.
- the measuring device 1 has a base body 3 which is closed along a circumferential line, the base body 3 here being circular in a plan view and in particular - as can be seen with reference to FIG. 2 - as a circular disk.
- the imaginary circumferential line, along which the main body 3 is designed to be closed, is in this respect a circular line extending in the image plane of FIG.
- the main body 1 has a first, passing through it in the axial direction recess 5, which is here as a central bore, in particular as a circular central bore formed.
- the axial direction is perpendicular to the image plane of Figure 1.
- the recess 5 is
- the base body 3 also has at least one, here exactly eight second recesses 7, which also pass through the base body 1 in the axial direction.
- the second recesses 7 are arranged radially outwardly of the first recess 5, wherein they are arranged in particular - seen in the circumferential direction - symmetrically about the first recess 5 around, so they are in particular on an imaginary circumference concentric in same
- the second recesses 7 are also formed as through holes. They each have a smaller passage cross-section than the first recess 5, and in particular, since they are of circular design, they have a smaller diameter than the first recess 5.
- the second recesses 7 are fluidically separated from the first recess 5, so there is no fluid path between the second recesses 7 and the first recess 5 within the main body 3.
- At least one sensor device is associated with the main body 3, with two sensor devices 9, 11 being assigned to it in the exemplary embodiment shown here, namely a pressure sensor 13 as the first sensor device 9, and a temperature sensor 15 as the second sensor device 11. Both sensor devices 9, 11 are in FIG Actively connected to the first recess 5.
- the sensor devices 9, 11 accordingly physical properties of a fluid can be measured, which is arranged in the first recess 5 and in particular the first recess 5 flows through.
- physical properties of a fluid can be measured, which is arranged in the first recess 5 and in particular the first recess 5 flows through.
- physical properties of a fluid can be measured, which is arranged in the first recess 5 and in particular the first recess 5 flows through.
- physical properties of a fluid can be measured, which is arranged in the first recess 5 and in particular the first recess 5 flows through.
- physical properties of a fluid can be measured, which is arranged in the first recess 5 and in particular the first recess 5 flows through.
- thermodynamic state variables of the fluid measurable, namely by means of the temperature sensor 15, a temperature by means of the pressure sensor 13, a pressure of the fluid.
- the main body 3 has two end faces, namely a shown in Figure 1, the
- first end face 17 and a second Viewer facing, first end face 17 and a second, in the axial direction of the first end face 17 facing away from the viewer in Figure 1 and therefore not shown end face 19.
- the second end face 19, however, is shown in Figure 2.
- the recesses 5, 7 are formed as through holes and therefore open into the first end face 17 on the one hand and in the second end face 19 on the other.
- first sealing devices 21 are arranged on both end faces 17, 19 -as seen in the radial direction-between the first recess 5 and the second recesses 7, in particular in the form of first annular grooves 23
- first sealing means 21 are thus in particular designed as circumferential sealing devices.
- the second recesses 7 relative to the first recess 5 can be sealed in the assembled state of the measuring device 1.
- the embodiment shown here are on both end faces 17, 19 first
- Fluid connections 27 are realized here in particular by on each end face 17, 19 each have a second annular groove 29, which - seen in the circumferential direction - circumferentially formed and concentrically so on the one hand to the first recess 5 and on the other hand to the
- a arranged in the interior of the main body 3 second fluid connection between the second recesses 7 is provided.
- This may be formed, for example, as an annular channel which extends concentrically around the first recess 5 around and the second recesses 7 fluidly interconnects.
- a second sealing device 31 is also arranged on both end faces 17, 19 radially outside the second recesses 7, which is here also realized in each case by a third annular groove 33 and a second O-ring 35 arranged therein.
- the third annular groove 33 of the second sealing device 31 extends concentrically both to the first recess 5 and to the arrangement of the second recesses 7, and - seen in the circumferential direction - circumferentially formed.
- the main body 3 has a first radial bore 37 for receiving the first
- This first radial bore 37 is designed in particular as a stepped bore, wherein it has a threaded portion 39 which has an internal thread with which an external thread of the first sensor device 9 meshes.
- the pressure sensor 13 is thus screwed in particular into the first radial bore 37.
- a sealing device 41 in the form of a contact surface and a cooperating with this fourth O-ring 42 is provided in per se known manner on the first radial bore 37, which seals in particular the threaded portion 39 to the outside.
- the main body 3 has a second radial bore 43, which is provided for receiving the second sensor device 11. This is also preferably as a stepped bore
- the second sensor device 11 is preferably also in the second
- Radial bore 43 at least partially screwed. But it is also possible that the second sensor device 11 glued into the second radial bore, soldered, welded or secured there in another suitable manner.
- the temperature sensor 15 provided as the second sensor device 11 has a protective sleeve 45.
- This is tight, for example by suitable arrangement of at least one fifth O-ring or by welding, gluing, soldering or the like, arranged in the second radial bore 43, so that no fluid connection of the first recess 5 radially outwardly over an edge of the protective sleeve 45 exists.
- the protective sleeve 45 fluidly separates an interior of the temperature sensor 15 from the first recess 5.
- the interior of the protective sleeve 45 is in turn sealed against an external environment of the measuring device 1.
- the temperature sensor 15 realizes a double-walled seal of the interior of the first recess 5 with respect to an exterior of the measuring device 1.
- Fig. 2 shows a sectional view of the embodiment of the measuring device 1 according to Figure 1.
- the same and functionally identical elements are provided with the same reference numerals, so reference is made to the preceding description.
- the sectional plane of FIG. 2 is chosen in particular such that the first sensor device 9 and thus the
- first radial bore 37 is in fluid communication with the second recesses 7, here in particular via a tap hole 47 as a second fluid connection
- second radial bore 43 in fluid communication with at least one of the second recesses 7.
- the second radial bore 43 may also be connected to the second annular groove 29 with a corresponding tap hole.
- Radial bore 37 can be flushed by a fluid flowing into the second recesses 7, wherein this fluid - when it is under higher pressure than that in the first
- the pressure sensor 13 is preferably designed as an absolute pressure sensor. In this case, it has a measuring membrane 49 and a support space 51, wherein the measuring membrane 49 is acted upon on one side with the pressure in the first recess 5, wherein on the other side of the measuring diaphragm 49 rests in the support chamber 51 pressure.
- the support space 51 is preferably evacuated or has an inert gas, for example nitrogen, under a low pressure, in particular below the normal pressure of 1013 mbar. Through the support space 51 is also in the region of the pressure sensor 13, a second chamber radially outside the first
- the base body 3 is designed as a flange for the arrangement between two pipe sections, wherein in particular the measuring device 1 is designed overall as a measuring flange.
- the base body 3 is preferably arranged - seen in the axial direction - between two pipe sections, each having a first chamber and a second chamber, wherein the first chamber is fluidically separated from the second chamber, and wherein the first recess 5 for fluid communication of the first Chambers of the pipe sections is provided, and wherein the second
- Recesses 7 are formed for fluid communication of the second chambers of the pipe sections with each other.
- Such pipe sections are thus double-walled and have - in particular concentric to each other - on chambers in which different fluids are arranged.
- a combustible or explosive first fluid is preferably guided in an inner, first chamber, wherein an inert gas or purging air is guided in a radially outer, second chamber. This double walling continues over the main body 3 of the measuring device 1 and is also in the field of
- Sensor devices 9, 11 maintained.
- their electrical or electronic parts are preferably arranged outside the double-walled structure, so that they do not have to be explosion-proof. Therefore, simple and inexpensive sensor devices 9, 11 can be used.
- the pipe sections between which the base body 3 is arranged may have flanges which have a larger diameter than the main body 3. This can then be clamped between the flanges of the pipe sections by the flanges of the pipe sections radially outside of the main body 3 clamped together, in particular be screwed. These clamp the body 3 between them.
- the main body 3 itself - not shown here - fastening means, in particular threaded holes, via which it can be connected to the flanges of the pipe sections.
- the measuring device 1 has an additional, arranged on the base body 3 sensor device which is in operative connection with the second recesses 7, in particular with at least one of the second recesses 7, so that at least one physical property of one in the second recesses. 7 arranged fluid is measurable by means of this additional sensor device.
- the measuring device 1 is in particular provided for arrangement in a
- Fuel gas supply device for an internal combustion engine which has an at least partially double-walled fuel gas line.
- the measuring device 1 is associated with this at least partially double-walled fuel gas line.
- the measuring device 1 is preferably arranged between flanges of the at least partially double-walled fuel gas line.
- the invention also includes an internal combustion engine, not shown here, which a
- Fuel gas supply device having an at least partially double-walled Has fuel gas line which in turn has the measuring device 1.
- the internal combustion engine can be designed in particular as a V or W engine, in particular having different cylinder banks. It is possible that each cylinder bank is assigned a separate measuring device 1, but it is also possible that the
- Fuel gas supply device is assigned a total of only one measuring device 1.
- Fuel gas supply device and the internal combustion engine is a mechanically simple and inexpensive way to measure physical properties of flammable and / or explosive fluids in a double-walled pipe system, in particular non-explosion-proof, cost-effective sensor devices 9, 11 can be used.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016204764.7A DE102016204764B4 (en) | 2016-03-22 | 2016-03-22 | Measuring device, fuel gas supply device with such a measuring device and internal combustion engine with such a fuel gas supply device |
PCT/EP2017/000357 WO2017162333A1 (en) | 2016-03-22 | 2017-03-21 | Measuring device, combustible gas supply device with said type of measuring device and internal combustion engine with said type of combustible gas supply device |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3433584A1 true EP3433584A1 (en) | 2019-01-30 |
Family
ID=59009642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17727790.2A Withdrawn EP3433584A1 (en) | 2016-03-22 | 2017-03-21 | Measuring device, combustible gas supply device with said type of measuring device and internal combustion engine with said type of combustible gas supply device |
Country Status (5)
Country | Link |
---|---|
US (1) | US10801866B2 (en) |
EP (1) | EP3433584A1 (en) |
CN (1) | CN108779994A (en) |
DE (1) | DE102016204764B4 (en) |
WO (1) | WO2017162333A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018134437A1 (en) * | 2017-01-23 | 2018-07-26 | Eltronic A/S | A process unit for hazardous material |
EP3786498A1 (en) * | 2019-08-26 | 2021-03-03 | Winterthur Gas & Diesel AG | Shut-off valve for a double-walled line, gas supply system and large engine |
DE102021118359A1 (en) | 2021-07-15 | 2023-01-19 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Probe housing and probe device with a sensor and a probe housing |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1559547A (en) | 1920-03-25 | 1925-11-03 | Francis H Brown | Pressure-responsive device |
DE3819026A1 (en) | 1988-06-03 | 1989-12-14 | Pfaudler Werke Ag | PROBE ARRANGEMENT |
DE20205242U1 (en) | 2002-04-04 | 2002-06-06 | Rupp Grasegger GmbH, 82467 Garmisch-Partenkirchen | connection device |
DE10357222A1 (en) | 2003-12-08 | 2005-06-30 | Basf Ag | Connecting piece for measuring instruments and measuring probe provided with such a connecting piece |
NO20043893L (en) * | 2004-09-17 | 2006-03-20 | Norsk Hydro As | Arrangement or arrangement of a probe or sensor for painting the condition of a rudder or the like |
US9938886B2 (en) * | 2008-03-12 | 2018-04-10 | Ge Oil & Gas Compression Systems, Llc | Internal combustion engine with shrouded injection valve and pre-combustion chamber system |
DE102008032833A1 (en) | 2008-07-14 | 2010-01-21 | Rational Ag | Food preparation appliance |
US8316875B2 (en) * | 2008-12-30 | 2012-11-27 | General Electric Company | Methods, apparatus and/or systems relating to fuel delivery systems for industrial machinery |
US8468884B2 (en) * | 2009-02-25 | 2013-06-25 | Pii (Canada) Limited | Motor controlled speed pipeline apparatus and method |
US20110160609A1 (en) * | 2009-12-29 | 2011-06-30 | Stone Robert T | Method and system for monitoring pressure in a body cavity |
US20120216608A1 (en) * | 2011-02-25 | 2012-08-30 | General Electric Company | System for measuring parameters of fluid flow in turbomachinery |
EP2589780A1 (en) * | 2011-11-04 | 2013-05-08 | Caterpillar Motoren GmbH & Co. KG | Fuel supply system with leakage detection means |
EP2927471A1 (en) * | 2014-04-04 | 2015-10-07 | Caterpillar Motoren GmbH & Co. KG | Double-walled fuel supply line element and connecting flange for the same |
US9605633B2 (en) | 2014-04-30 | 2017-03-28 | Electro-Motive Diesel, Inc. | Manifold assembly for dual-walled pipe |
CN104374438B (en) * | 2014-10-27 | 2017-09-19 | 哈尔滨汽轮机厂有限责任公司 | The air-flow detection method of lightweight gas turbine combustion chamber burner |
CN204573395U (en) * | 2015-04-16 | 2015-08-19 | 中船黄埔文冲船舶有限公司 | A kind of butt welding sampling peculiar to vessel and leak detection flange |
-
2016
- 2016-03-22 DE DE102016204764.7A patent/DE102016204764B4/en not_active Expired - Fee Related
-
2017
- 2017-03-21 EP EP17727790.2A patent/EP3433584A1/en not_active Withdrawn
- 2017-03-21 WO PCT/EP2017/000357 patent/WO2017162333A1/en active Application Filing
- 2017-03-21 US US16/085,197 patent/US10801866B2/en active Active
- 2017-03-21 CN CN201780019446.0A patent/CN108779994A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US10801866B2 (en) | 2020-10-13 |
WO2017162333A1 (en) | 2017-09-28 |
DE102016204764B4 (en) | 2020-04-23 |
US20190072418A1 (en) | 2019-03-07 |
DE102016204764A1 (en) | 2017-09-28 |
CN108779994A (en) | 2018-11-09 |
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