EP3932496B1 - Flammensperre - Google Patents

Flammensperre Download PDF

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Publication number
EP3932496B1
EP3932496B1 EP20183483.5A EP20183483A EP3932496B1 EP 3932496 B1 EP3932496 B1 EP 3932496B1 EP 20183483 A EP20183483 A EP 20183483A EP 3932496 B1 EP3932496 B1 EP 3932496B1
Authority
EP
European Patent Office
Prior art keywords
sensor
sensor device
interface
adapter ring
housing
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.)
Active
Application number
EP20183483.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3932496A1 (de
Inventor
Martin Bender
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.)
Witt & Co Holding und Handels-Kg GmbH
Original Assignee
Witt & Co Holding und Handels-Kg 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 Witt & Co Holding und Handels-Kg GmbH filed Critical Witt & Co Holding und Handels-Kg GmbH
Priority to PL20183483.5T priority Critical patent/PL3932496T3/pl
Priority to EP20183483.5A priority patent/EP3932496B1/de
Priority to PCT/EP2021/068220 priority patent/WO2022003123A1/de
Priority to US18/013,676 priority patent/US20230364456A1/en
Priority to KR1020237003744A priority patent/KR20230031357A/ko
Publication of EP3932496A1 publication Critical patent/EP3932496A1/de
Application granted granted Critical
Publication of EP3932496B1 publication Critical patent/EP3932496B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/04—Removing or cutting-off the supply of inflammable material
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C4/00—Flame traps allowing passage of gas but not of flame or explosion wave
    • A62C4/02—Flame traps allowing passage of gas but not of flame or explosion wave in gas-pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/82—Preventing flashback or blowback
    • F23D14/825—Preventing flashback or blowback using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means

Definitions

  • the invention relates to a device for preventing flashback in a line carrying combustible gas, in particular a flame arrestor, the device having a housing with at least one post-flow barrier arranged therein, at least one gas non-return valve arranged therein and at least one sintered body arranged therein, the device having a sensor device includes.
  • Such devices have long been known, such as from DE 29 20 397 A1 , and are regularly used in the field of gas technology in particular. These are simple flame arresters that prevent a flashback into a line carrying combustible gas and thus prevent a gas storage tank connected to the line from exploding. Devices of this type are often prescribed for this reason, especially for accident prevention.
  • the object of the invention is therefore to specify a device which eliminates the disadvantages described and enables simple error analysis.
  • the sensor device records and stores data such as the frequency and intensity of flashbacks
  • data such as the frequency and intensity of flashbacks
  • a response of the device in the event of a flashback can be more easily detected and taken into account in the error analysis.
  • storing the frequency and intensity of flashbacks helps with subsequent fault analysis. In this way, the frequency and intensity of flashbacks can be easily logged, i.e. recorded and documented.
  • the sensor device has at least one sensor designed as a temperature sensor, pulse sensor, sound sensor, pressure sensor and/or as a piezo element.
  • a sensor makes it particularly easy to record the frequency and intensity of flashbacks.
  • a piezo element is particularly suitable for this purpose, which responds very well to sudden changes in pressure at the outlet of the device. As a result, a pressure surge, a pressure fluctuation or a pressure wave in the event of a flashback can easily be detected via the piezo element.
  • a piezo element of the type EPZ-15MS60W from Elektrotechnik Karl-Heinz Mauz GmbH is preferably used.
  • a sound sensor offers the possibility of detecting a flashback accompanied by a short, quiet popping or clicking noise.
  • a magnetic sound pickup is particularly suitable for this.
  • pressure sensors are particularly suitable whose transient measurement signal is analyzed in order to detect a short-term increase in pressure.
  • the pressure sensor can also be used to easily measure the pressure in the line carrying the combustible gas for other purposes.
  • a temperature sensor can also be used to detect slow gas burn-back based on a rise in temperature will. Such a temperature sensor can advantageously be used in addition to the sensor that detects the flashback, since a burn-back due to a temperature rise in the device is thereby detected independently of a flashback.
  • the pulse resulting from the flashback can be detected with a pulse sensor.
  • the sensor device transmits the recorded and/or stored data by means of an interface.
  • information about flashbacks that have occurred and their frequency can be output by means of a data stream, which significantly simplifies the subsequent error analysis.
  • the interface has a light-emitting diode.
  • this light-emitting diode which can also serve as an indicator for flashbacks that have occurred, it is possible to read out information on how flashbacks have occurred and their frequency by means of a modeled data stream.
  • the use of the light-emitting diode as an interface also offers advantages in terms of the device's susceptibility to errors, since the light-emitting diode is not susceptible to external influences such as moisture and dirt.
  • a light emitting diode can be used to easily indicate that a flashback has occurred, making it easy to signal to the user that the device needs to be reset.
  • the interface has a photo element.
  • This photo element can be used to transfer data from an external device to the device.
  • the memory of the device can be reset with these data made available, and on the other hand, the configuration of the device can also be changed.
  • a particular advantage is that the interface communicates with an external device, in particular a tablet or smartphone. This option makes error analysis much easier, since recorded and stored data can be easily transferred from the device to an external device. Furthermore, with the external device, the memory of the device can be easily accessed be reset or the configuration changed.
  • a preferred embodiment of the invention provides that the interface communicates with a cloud service. This option makes error analysis much easier, since recorded and stored data can be easily transferred from the device to a cloud and flexibly retrieved from there.
  • the interface is designed as a mesh component and can be integrated into a mesh network.
  • a wireless local mesh network can be formed from several WLAN components, which is seen as a uniform WLAN by the end devices located in the "mesh area" and which has the widest possible coverage by connecting and controlling the components (base and satellites). guaranteed with the same transmission speed.
  • an advantageous embodiment of the invention provides that the sensor device is arranged in an adapter ring.
  • the arrangement of the sensor device in such an additional element offers the advantage that the sensor device can be easily added to the housing.
  • the adapter ring can be easily coupled to the housing.
  • the adapter ring can preferably be screwed to the housing by means of a thread.
  • several adapter rings can also be connected to the housing.
  • a further advantageous embodiment of the invention provides that the sensor device is arranged in the housing.
  • the arrangement of the sensor device in the housing offers the advantage that it can be easily assembled with the housing and errors in the assembly of the device can thus be reduced.
  • a preferred embodiment of the invention provides that the device has a flow meter which is designed to check the continuity of the sintered body.
  • the highly porous structure of the sintered body causes incoming flames to branch out in a labyrinth of pores, lose their energy and cool down so that the flame goes out. With the flow meter of the device, the continuity of the highly porous structure can now be monitored in order to detect clogging of the sintered body with foreign matter.
  • a device according to the invention is shown.
  • the representation according to figure 1 shows a device 1 according to a first embodiment for preventing flashbacks in a non-illustrated line carrying combustible gas.
  • the device 1 can be connected to such a gas line, not shown, so that the device 1 protects the connectable gas line.
  • the device 1 includes two adapter rings 7 which are coupled to the housing 8 .
  • Sensor devices 2 are arranged in each of these adapter rings 7 .
  • the figure 2 shows the in figure 1 device 1 shown in a side view. It is easy to see how the adapter rings 7 are coupled to the housing 8 .
  • a sectional plane AA is also drawn, which corresponds to the sectional representation in figure 3 is equivalent to.
  • the device 1 comprises two adapter rings 7 screwed onto the housing 8 by means of a thread 12.
  • an after-flow barrier 9 is arranged in the housing 8 shown.
  • This Nachströmsperre 9 is temperature-controlled and ensures that any afterburning in the gas-carrying line is extinguished.
  • the plastic melt body 18 arranged in the device 1 melts and the valve 16, 17 loaded by the spring 15 is automatically triggered and the valve piston 16 moves towards the valve seat 17 and thus interrupts the gas supply. This prevents a critical ignition temperature from forming on the gas inlet side 19 of the device 1 .
  • the gas non-return valve 10 arranged in the housing 8 engages when gas flows back through the line.
  • a backflow is immediately stopped by the valve 13, which is loaded with the spring 14, in order to prevent the formation of an explosive gas mixture.
  • the spring 14 stops the return flow by moving the valve plate 13 in the direction of the gas inlet side 19 for this purpose.
  • the sintered body 11 made of sintered chrome-nickel steel and designed as a hollow cylinder prevents a flashback.
  • the highly porous structure of the sintered body 11 ensures that incoming flames branch out in a labyrinth of pores, lose their energy and cool down, so that the flame goes out.
  • Adapter rings 7 shown are coupled to the housing 8 and each have a sensor device 2 which detects and stores the frequency and intensity of flashbacks.
  • the sensor device 2 has at least one sensor 3, which can be designed as a temperature sensor, pulse sensor, sound sensor, pressure sensor and/or as a piezo element. Also in figure 3 a light-emitting diode 4 designed as a light ring is shown, which serves as a display to signal flashbacks that have occurred. In addition, the light-emitting diode 4 shown here serves as an interface for transmitting recorded and stored data from the sensor device 2.
  • An interface designed as a photo element 5 also enables communication with an external device, in particular a tablet or smartphone.
  • the sensor device 2 can be configured and/or reset via this interface.
  • a further possibility would be a radio interface (eg NFC, Bluetooth, etc.) via which data from the sensor device 2 can be read out or exchanged.
  • the sensor device 2 can log entire series of measurements or record other events that are of particular interest.
  • the sensor device 2 is preferably connected to a primary cell, not shown, and is operated via this.
  • the primary cell is advantageously in the device 1, further advantageously in the adapter ring 7, permanently installed.
  • passive sensor elements are used so that the sensor device 2 can be supplied with energy from the permanently installed primary cell over a longer period of time.
  • the fixed installation of the primary cell ensures a high level of functionality and prevents errors caused by incorrect, subsequent insertion of a replaceable primary cell.
  • the representation according to figure 4 shows a device 1 according to a second embodiment for preventing flashbacks in a non-illustrated line carrying combustible gas.
  • the device 1 can be connected to such a gas line, so that the device 1 protects the connectable gas line.
  • the device 1 includes an adapter ring 7 which is coupled to the housing 8 .
  • the sensor device 2 is arranged in this adapter ring 7 .
  • the sensor device 2 is accessible via an inspection opening covered with a cover 22 for maintenance, repairs or replacement.
  • the device 1 shown is shown in a side view from the outside.
  • For the internal structure in the housing 8 of the in figure 4 shown device 1 is also on figure 3 referred.
  • a sectional plane AA is also drawn in, which corresponds to the sectional view in figure 6 is equivalent to.
  • the representation also shows a sectional plane BB, which corresponds to the sectional representation in figure 7 is equivalent to.
  • the section plane CC is the section through the device 1 for figure 8 implied.
  • FIG. 1 is a plan view of the device 1 according to FIG figure 4 shown so that the valve plate 13 can be seen.
  • the figure 6 issues a sectional view according to the section plane AA figure 4 by the adapter ring 7 of the device 1.
  • the adapter ring 7 has a sensor device 2 which detects and stores the frequency and intensity of flashbacks.
  • the sensor device 2 has at least one sensor 3, which as a temperature sensor, pulse sensor, sound sensor, pressure sensor and / or as Piezo element can be formed.
  • a light-emitting diode 4 which serves as a display to signal flashbacks that have occurred.
  • the light-emitting diode 4 shown here serves as an interface for transmitting recorded and stored data from the sensor device 2.
  • An interface designed as a photo element 5 also enables communication with an external device, in particular a tablet or smartphone.
  • the sensor device 2 can be configured and/or reset via this interface.
  • a further possibility would be a radio interface (eg NFC, Bluetooth, etc.) via which data from the sensor device 2 can be read out or exchanged.
  • the sensor device 2 can log entire series of measurements or record other events that are of particular interest.
  • the sensor device 2 is preferably connected to a primary cell, not shown, and is operated via this.
  • the primary cell is advantageously permanently installed in the device 1 , more advantageously in the adapter ring 7 .
  • primarily passive sensor elements are used so that the sensor device 2 can be supplied with energy from the permanently installed primary cell over a longer period of time.
  • the device 1 includes a circuit board 21 which is connected to the sensor device 2 and the interface.
  • This circuit board 21 is advantageously curved in the shape of a circular arc and is arranged along the circumference of the adapter ring 7 .
  • Such a curved circuit board 21 enables particularly space-saving integration in the adapter ring 7.
  • FIG 7 the adapter ring 7 coupled to the housing 8 is shown in a schematic sectional view through the circuit board 21 . It can also be seen that a connection adapter 23 for connecting the device 1 to the line carrying the combustible gas is screwed into the adapter ring 7 via a thread.
  • figure 8 is a schematic sectional view through the device 1 according to the invention according to the sectional plane CC in figure 4 at the sensor device 2 shown.
  • the sensor device 2 is accommodated in a receptacle 24 which is screwed into the adapter ring 7 .
  • the sensor device 2 is preferably designed as a pressure and temperature sensor or piezo element 3 .
  • FIG. 24 shows a detailed view of the receptacle 24 according to FIG figure 8 for the sensor device 2. It can be seen that the sensor 3 is fixed by the receptacle 24 of the sensor device 2 in the adapter ring 7 by screwing. The sensor 3 in the adapter ring 7 can be exchanged quickly and easily via this screw connection.
  • the figure 10 shows a schematic plan view of the receptacle 24 of the sensor device 2.
  • Adapter bores 25 can be seen, via which the receptacle 24 can be screwed in and out of the adapter ring 7 using a special tool.
  • a bushing 26 for the wiring of the sensor 3 ( 9 ) to see.
  • figure 11 which is a schematic sectional view through the receptacle 24 of the sensor device 3 according to FIG figure 10 represents, it can be seen that the bushing 26 extends from the sensor receptacle 27 through the receptacle 24 for the sensor device.
  • the representations according to figures 12 and 17 show a device 1 according to a third or fourth embodiment for preventing flashbacks in a non-illustrated line carrying combustible gas.
  • the devices 1 can be connected to such a gas line, so that the devices 1 secure the connectable gas line.
  • the device 1 comprises an adapter ring 7 which is coupled to the housing 8 .
  • the sensor device 2 is arranged in this adapter ring 7 .
  • the in the figures 12 and 17 The device 1 shown is shown in a side view from the outside.
  • the internal structure in the housing 8 of the device 1 shown is also shown figure 3 referred.
  • FIG. 12 or 17 a sectional plane AA is also drawn in, which corresponds to the sectional view in figure 13 or. figure 18 is equivalent to.
  • the representation in figure 12 or 17 also shows a sectional plane BB, which corresponds to the sectional view in figure 14 or 19.
  • the section through the device is shown in FIG figure 12 or 17 for the figures 15 and 20 indicated.
  • the figures 13 and 18 issue a sectional view according to the section plane AA figure 12 and 17 by the adapter ring 7 of the respective device 1.
  • the adapter ring 7 has a sensor device 2 in both the third and the fourth embodiment, which detects and stores the frequency and intensity of flashbacks.
  • the sensor device 2 has at least one sensor 3, which can be designed as a temperature sensor, pulse sensor, sound sensor, pressure sensor and/or as a piezo element.
  • a light-emitting diode 4 which serves as a display to signal flashbacks that have occurred.
  • the light-emitting diode 4 shown here serves as an interface for transmitting recorded and stored data from the sensor device 2.
  • An interface designed as a photo element 5 also enables communication with an external device, in particular a tablet or smartphone.
  • the sensor device 2 can be configured and/or reset via this interface.
  • a further possibility would be a radio interface (eg NFC, Bluetooth, etc.) via which data from the sensor device 2 can be read out or exchanged.
  • the sensor device 2 can log entire series of measurements or record other events that are of particular interest.
  • the sensor device 2 is preferably connected to a primary cell, not shown, and is operated via this.
  • the primary cell is advantageously permanently installed in the device 1 , more advantageously in the adapter ring 7 .
  • the device 1 comprises the figures shown Embodiments each have a circuit board 21 which is connected to the sensor device 2 and the interface.
  • This circuit board 21 is advantageously curved in the shape of a circular arc and is arranged along the circumference of the adapter ring 7 . Such a curved circuit board 21 enables particularly space-saving integration in the adapter ring 7.
  • the sensor device 2 is accommodated in a receptacle 24 which is screwed into the adapter ring 7 .
  • the sensor device 2 is preferably designed as a pressure and temperature sensor or piezo element 3 . It can be seen that the sensor 3 is fixed by the receptacle 24 of the sensor device 2 in the adapter ring 7 by screwing. The sensor 3 in the adapter ring 7 can be exchanged quickly and easily via this screw connection.
  • the figure 15 shows a schematic sectional view through the device 1 according to the third embodiment
  • the figure 20 shows a sectional view through the device 1 according to the fourth embodiment.
  • a cover ring 28 is arranged on the adapter ring 7 , which protects the sensor device 2 and the circuit board 21 .
  • This cover ring 28 is secured against relative displacement by a displacement lock 29 on the adapter ring 7 .

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  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Emergency Alarm Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Fire-Detection Mechanisms (AREA)
EP20183483.5A 2020-07-01 2020-07-01 Flammensperre Active EP3932496B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL20183483.5T PL3932496T3 (pl) 2020-07-01 2020-07-01 Blokada płomieniowa
EP20183483.5A EP3932496B1 (de) 2020-07-01 2020-07-01 Flammensperre
PCT/EP2021/068220 WO2022003123A1 (de) 2020-07-01 2021-07-01 Flammensperre
US18/013,676 US20230364456A1 (en) 2020-07-01 2021-07-01 Flame Trap
KR1020237003744A KR20230031357A (ko) 2020-07-01 2021-07-01 화염 트랩

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20183483.5A EP3932496B1 (de) 2020-07-01 2020-07-01 Flammensperre

Publications (2)

Publication Number Publication Date
EP3932496A1 EP3932496A1 (de) 2022-01-05
EP3932496B1 true EP3932496B1 (de) 2022-09-07

Family

ID=71452013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20183483.5A Active EP3932496B1 (de) 2020-07-01 2020-07-01 Flammensperre

Country Status (5)

Country Link
US (1) US20230364456A1 (pl)
EP (1) EP3932496B1 (pl)
KR (1) KR20230031357A (pl)
PL (1) PL3932496T3 (pl)
WO (1) WO2022003123A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4386261A1 (de) * 2022-12-16 2024-06-19 Vaillant GmbH Verfahren zum betreiben eines heizgerätes, computerprogramm, regel- und steuer-gerät und heizgerät

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920397A1 (de) * 1979-05-19 1981-04-30 Zinser-Schweisstechnik Gmbh & Co, 7333 Ebersbach Vorrichtung zum verhindern des rueckschlagens einer flamme, insbesondere fuer einen schweiss- oder schneidbrenner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4386261A1 (de) * 2022-12-16 2024-06-19 Vaillant GmbH Verfahren zum betreiben eines heizgerätes, computerprogramm, regel- und steuer-gerät und heizgerät

Also Published As

Publication number Publication date
PL3932496T3 (pl) 2022-12-27
KR20230031357A (ko) 2023-03-07
EP3932496A1 (de) 2022-01-05
US20230364456A1 (en) 2023-11-16
WO2022003123A1 (de) 2022-01-06

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