EP3349866B1 - Rohrheizung - Google Patents

Rohrheizung Download PDF

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Publication number
EP3349866B1
EP3349866B1 EP16766926.6A EP16766926A EP3349866B1 EP 3349866 B1 EP3349866 B1 EP 3349866B1 EP 16766926 A EP16766926 A EP 16766926A EP 3349866 B1 EP3349866 B1 EP 3349866B1
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EP
European Patent Office
Prior art keywords
heating
extinguishing agent
pipe
heating sleeve
agent container
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
EP16766926.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3349866A1 (de
Inventor
Dipl.-Ing. Roger DIRKSMEIER
Ulrich Hiltemann
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.)
Fogtec Brandschutz GmbH and Co KG
Original Assignee
Fogtec Brandschutz GmbH and Co KG
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 Fogtec Brandschutz GmbH and Co KG filed Critical Fogtec Brandschutz GmbH and Co KG
Priority to PL16766926T priority Critical patent/PL3349866T3/pl
Publication of EP3349866A1 publication Critical patent/EP3349866A1/de
Application granted granted Critical
Publication of EP3349866B1 publication Critical patent/EP3349866B1/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
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/76—Details or accessories
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems

Definitions

  • the subject relates to a fire fighting system with a heating medium.
  • a fire extinguishing system based on the dry system is known.
  • the fire extinguishing system is operated by a preheated extinguishing agent which is introduced into a heated pipe.
  • the GB 2449131 A describes a piping system in which a heating wire is insulated from the outside around the pipeline to keep a sprinkler free of frost.
  • extinguishing agent container in which extinguishing agent, for example water, is stored.
  • extinguishing agent for example water
  • This system can trigger autonomously without the need for a pump or anything else Propellant is necessary to drive the extinguishing agent out of the extinguishing agent container.
  • the extinguishing agent is stored without pressure in one bottle and a second bottle stores the propellant, in particular a propellant gas, for example nitrogen under pressure. If triggered, a valve between the two bottles is opened so that the propellant drives the extinguishing agent out of the extinguishing agent container.
  • this increases the energy consumption for heating up the extinguishing agent and, on the other hand, the time until the extinguishing agent is heated up.
  • the liner also limits the energy to be introduced, since excessive energy flow would damage the liner.
  • the operational readiness of the fire-fighting system must be guaranteed immediately when the rail vehicle is put into operation. For example, if the vehicle is left in the cold overnight and the extinguishing agent is frozen, an unnecessarily long time must be waited at the start of operation before the rail vehicle can actually be used to transport people, namely only when the fire fighting system is ready for use, i.e. when the extinguishing agent is thawed .
  • the object was therefore based on the task of being able to produce the operational readiness of fire-fighting systems more quickly and to make the extinguishing medium more fluid in an energy-efficient manner.
  • the fire fighting system includes a pressure-resistant extinguishing agent container.
  • an extinguishing agent container can be, for example, a steel cylinder in which the extinguishing agent, for example water, can be stored under pressure or without pressure.
  • a so-called liner can be provided in the steel cylinder, which protects the inner wall of the steel cylinder against corrosion.
  • the extinguishing agent container can be, for example, a composite container, for example made of a plastic composite material, preferably made of a plastic fiber composite material. Type 4 composite containers are particularly suitable.
  • the fiber composite materials can be, for example, glass fiber composite materials or carbon fiber composite materials.
  • At least one opening is preferably arranged in the extinguishing agent container.
  • the opening is generally provided as an outlet on the bottle neck, but can preferably be provided at any other desired location of the extinguishing agent container in the case of composite containers.
  • the opening can not only be designed as an outlet, but it is also possible for the opening in question to be an inlet or to be formed merely as a service opening via which a heating medium and / or a sensor is introduced into the extinguishing agent container.
  • Extinguishing agent can be let into the extinguishing agent container via an inlet or, in the case of a two-bottle system, a propellant gas can be driven into the extinguishing agent container in order to expel the extinguishing agent from the extinguishing agent container.
  • a tube is preferably arranged in the opening.
  • This tube is preferably formed inside the extinguishing agent container, when the opening is the outlet, as a riser pipe, via which the extinguishing agent can be driven out of the extinguishing agent container.
  • the riser pipe ends in an adapter piece at the opening and is transferred to an outlet pipe outside the extinguishing agent container.
  • the riser pipe and the outlet pipe can be in one piece or in several pieces.
  • the adapter piece can preferably be designed as a seal of the tube at the opening, so that the tube is guided pressure-tight into the interior of the container.
  • the extinguishing agent is best heated up where the extinguishing agent itself is stored, that is to say directly on the extinguishing agent.
  • the heater be arranged inside the extinguishing agent container.
  • a heating agent is preferably applied to the pipe arranged in the opening, so that a double pipe consisting of heating agent and pipe is formed, which is guided through the opening into the interior of the extinguishing agent container.
  • the heating means is arranged directly on the tube, so that the tube and the heating means preferably form an assembly.
  • the flat heating means is arranged on the outer surface of the tube and at least partially surrounds it.
  • the heating means is preferably formed as a flat part, which carries at least one heating resistor in a uniform substrate.
  • the heating means can be a flat part in the development, which can be wrapped around the pipe. There are preferably no empty spaces in the interior of the heating means, at least in areas, so that the heating means can be clamped at the opening, in particular via the adapter piece, in order to be able to seal the opening with respect to the heating means together with the pipe.
  • heating means is formed as a heating jacket.
  • a heating jacket can be shaped as a flat component, which is preferably formed from a solid material.
  • At least one heating resistor can be guided as a heating coil in the solid material.
  • the heating sleeve surrounds the tube completely.
  • the opening By completely reaching around, in particular in parts along the longitudinal axis of the tube, in particular in a region of the opening, it can be ensured that the opening can be sealed.
  • the heating jacket provided for heating the extinguishing agent.
  • the heating sleeve can also grip the pipe at least in the area of the opening and inside the extinguishing agent container. If the heating sleeve surrounds the pipe inside the extinguishing agent container, the effective heating area is maximized. If the heating sleeve surrounds the tube in the area of the opening, it is possible, as described above, to close the extinguishing agent container gas-tight and / or liquid-tight between the heating sleeve and the inner circumference of the opening.
  • the tube it is possible for the tube to form a double-walled tube with the heating medium.
  • the heating means can be an outer tube arranged around the tube, an annular space preferably being formed between the tube and the outer tube.
  • the outer tube is preferably metallic and at least one, preferably two, heating resistors are guided in the annular space between the tube and the outer tube.
  • the heating resistor is preferably coiled in the annular space between the tube and the outer tube.
  • the volume not filled by the heating resistor in the annulus is filled with an electrically non-conductive material.
  • Non-conductive metal alloys or metal oxides in particular magnesium alloys or magnesium oxides or oxides of the respective alloys, are preferably suitable here.
  • the heating means be formed from a flat base body with at least one heating resistor arranged in the base body.
  • the heating means is preferably formed from a flat part made of solid material, in which the heating resistor is guided.
  • the heating resistor can be embedded in the solid material of the base body.
  • the solid material of the base body is preferably electrically non-conductive.
  • the heating means is a metallic heating jacket. Because the heating sleeve is metallic, the opening between the sleeve and the inner circumference of the opening can be sealed particularly easily, since, for example, a compression fitting or an O-ring can be used to seal the metallic heating sleeve in the same way as conventional sealing of the riser pipe arranged in the opening.
  • the sleeve is formed in particular from a non-conductive metal alloy or a non-conductive metal oxide, for example with a magnesium component.
  • a heating resistor is preferably arranged in the material of the heating sleeve, preferably embedded and completely encompassed by the material of the heating sleeve.
  • the heating sleeve or the heating resistor and the material of the heating sleeve are preferably formed from a plastically non-destructively deformable material.
  • the deformability is such that the heating sleeve can be wrapped around the circumference of the tube without being destroyed.
  • the pipe or pipe radius thus determines the minimum bending radius that the material of the heating jacket enables.
  • the heating sleeve is preferably bent or wound around the tube.
  • the pipe can be bent inside the extinguishing agent container. Together with the pipe, the heating sleeve can also be placed inside the extinguishing agent container be curved.
  • the tube is preferably bent in the direction of an outer wall of the extinguishing agent container.
  • a riser pipe is generally provided in an extinguishing center container, in particular if the opening is an outlet opening.
  • the pipe is a riser pipe according to one embodiment.
  • the heating means be arranged on the pipe at least in the area of the opening and inside the extinguishing agent container.
  • the arrangement in the area of the opening enables easy sealing, the arrangement in the interior of the extinguishing agent container allowing the heating medium to act directly on the extinguishing agent.
  • a valve be arranged at the opening, which is preferably an extinguishing agent outlet.
  • the riser pipe or the pipe opens inside the extinguishing agent container via the adapter piece in the valve.
  • the pipe can be opened and closed via the valve.
  • the heating means can extend through the opening into the interior of the extinguishing agent container along the tube.
  • the heating medium thus extends from the valve through the opening to the inside of the extinguishing medium container.
  • An electrical connection of the heating resistor can take place outside the extinguishing agent container, in particular in the area of the valve or the adapter piece.
  • the heating means is preferably designed in such a way that initially it has an electrical feed line which has a lower electrical resistance than in the area in which the heating is to take place.
  • the heating means preferably has a supply area and a heating area, both areas preferably being arranged in the same way on the tube, but having different electrical resistances.
  • the supply area preferably extends up to 10%, in particular up to 15%, of the pipe length into the interior of the container. This is particularly useful if the container only has a filling level of less is filled as 100%, in particular is filled with about 90%.
  • the heater must therefore be designed so that the upper area is not heated, i.e. the upper area which does not come into contact with the extinguishing medium during operation.
  • the electrical connection in the supply area should have a minimal electrical power loss.
  • the tube and the heating means are mounted so as to abut one another directly.
  • the fact that they are in direct contact with one another means that there is in particular no air gap between the pipe and the heating medium.
  • An adhesive is preferably provided between the heating means and the outer surface of the tube, which causes sealing by means of adhering or gluing the heating means to the tube.
  • the opening In order to be able to fill the extinguishing agent container with extinguishing liquid without fear of extinguishing liquid flowing out and also to be able to build up gas pressure in the extinguishing agent container, for example, the opening must be sealed.
  • the tube itself is preferably closed via the valve.
  • the outer wall of the heating jacket must be sealed against the opening of the extinguishing agent container. According to one exemplary embodiment, this seal is preferably liquid-tight and / or gas-tight.
  • the heating medium forms a double-walled cylinder together with the tube.
  • the heating medium is guided on its outer surface at the opening through a seal. This enables sealing between the outer surface of the heating means and the opening or inner circumference of the opening, so that the extinguishing agent container is sealed liquid-tight and / or gas-tight on the seal.
  • the heating means is preferably a heating resistor.
  • this heating resistor can be provided with an electrical connection outside the extinguishing agent container, so that it is connected to it electrical connection, the heating resistor can be supplied with electrical power.
  • a fire fighting system in which the heating means has at least two heating circuits which can be switched independently of one another. It has been recognized that the extinguishing agent can be heated up by two heating circuits which can be switched independently of one another, depending on the respective environmental conditions. It is usually possible to prevent the extinguishing agent from cooling down in normal operation by means of a relatively low power supply. It can be sufficient to prevent the extinguishing agent from cooling down at ambient temperatures around freezing with 50W to some 100W electrical heating power.
  • the heating medium be supplied with different heating power, the heating power being automatically adapted to the ambient conditions.
  • a second heating circuit can also be connected or supplied with electrical energy, which can be operated with a higher electrical output than the first heating circuit. Electrical heating energy can also be supplied according to the situation and adapted to the ambient conditions.
  • the heating circuits can be operated with heating resistors of different line cross sections.
  • the heating resistor with the smaller cable cross-section can be designed for the lower electrical power and, due to its corresponding specific resistance, even with a lower one electrical power with good efficiency convert electrical energy into heating energy.
  • the heating circuit with the heating resistor with the larger cable cross section can be used for rapid heating. In this case the current strength in the heating conductor with the lower line cross section would be too high and this would be destroyed.
  • the second heating circuit which is designed for the higher currents.
  • the two heating circuits can be switched independently of one another, but electrical power can also be applied simultaneously in order to achieve the maximum possible heating power.
  • the heating circuits each have at least one heating resistor.
  • the heating resistor is preferably a heating wire with a specific resistance and / or line cross section that is adapted to the heating power.
  • the line cross-section is relevant for the current carrying capacity, which is preferably different for the two heating resistors.
  • a first heating resistor have a smaller specific resistance value than a second heating resistor.
  • the heating resistor with the smaller electrical resistance carries the higher electrical current and is preferably operated with the higher electrical power.
  • the power loss via the heating resistor, which is converted into heating power, is thus higher at this heating resistor than at the heating resistor with the larger specific resistance.
  • the two heating resistors are preferably designed for the electrical heating power or electrical power applied to them, so that their melting points are preferably different from one another. With help different heating resistors, it is possible to adapt the heating power to the respective heating power, in particular the electrical power fed in in each case.
  • the two heating circuits can each be operated with different heating power, in particular different electrical power.
  • At least one of the voltage sources is preferably a DC voltage source.
  • the fire-fighting system in question is particularly suitable for heating the extinguishing liquid in different situations, so that it is advantageous to operate the voltage sources at different electrical voltages, so that different heating voltages are applied to the heating resistors.
  • the voltages are preferably direct voltages.
  • a low direct voltage for example a 24 V or a 110 V direct voltage
  • the 110 V DC voltage can also be used for thawing, and the 24 V for maintaining the liquid state. Both voltages can be fed from an accumulator, for example.
  • a second DC voltage can preferably be a voltage supply for an electrical system. In particular, a second DC voltage can be 380 V or 400 V. For example, the higher voltage can be pulsed to regulate the heating energy
  • the heating circuits are preferably encapsulated in a common housing of the heating means.
  • the heating circuits are arranged in the heating jacket.
  • the heating means can be arranged in and / or on the extinguishing agent container.
  • the heating sleeve can be arranged on a riser pipe inside the extinguishing agent container. It is also possible that the heating jacket is arranged on the outer surface of the extinguishing agent container, in particular in the form of a heating mat is wrapped around the extinguishing agent container.
  • Heating means can also be arranged only on the adapter or on the adapter head in the area of the opening of the extinguishing agent container. If the heating means is only arranged outside the extinguishing agent container, an improved thermal conductivity of the pipe, in particular of the riser pipe, can be used for better heat transport. For this reason, it is also proposed that the riser pipe be formed from a metal material, preferably copper material, which has a higher thermal conductivity than a stainless steel riser pipe.
  • the arrangement of the heating medium only on the adapter head is to be regarded as independent, but can be combined with all other features as described here.
  • At least one temperature sensor be arranged in or on the extinguishing agent container.
  • the heating means can be controlled by evaluating the temperature measured by the temperature sensor.
  • a controller controls the application of electrical voltage to the heating resistors as a function of a detected temperature of at least one temperature sensor.
  • a hysteresis can be programmed into the control so that a heating circuit is switched on when the temperature falls below a limit and the heating circuit is only switched off again when a second, higher than the first limit temperature is overwritten.
  • the extinguishing agent container is pressure resistant.
  • Another aspect is a method of operating a fire fighting system. At least one temperature of the extinguishing agent container and / or of the extinguishing agent is detected in the extinguishing agent container. If the measured temperature falls below a first limit temperature, only the first heating circuit is activated. If the temperature falls below a second, lower than the first limit temperature, the second heating circuit is activated. The second heating circuit can be activated cumulatively or alternatively to the first heating circuit.
  • the second heating circuit can initially remain activated when the second limit temperature is exceeded until a third, higher than the second limit temperature is reached and only then is the second heating circuit deactivated.
  • a hysteresis control can also be established for the first limit temperature or the first heating circuit, so that the first heating circuit is only deactivated when a fourth limit temperature that is greater than the first limit temperature is overwritten.
  • one of the electrical voltages can be an electrical system voltage of a rail vehicle.
  • the first heating circuit For use at different temperatures of the extinguishing agent, it makes sense if the first heating circuit is operated with a smaller heating output than the second heating circuit.
  • Fig. 1 shows a fire-fighting system 2 with an extinguishing agent container 4.
  • a riser pipe 6 is provided which opens into a valve 10 via an adapter piece 8.
  • the adapter piece 8 is arranged in the region of an outlet opening 12 of the extinguishing agent container 4 and is preferably screwed tightly there.
  • the extinguishing agent container 4 is a steel cylinder which has a plastic liner 14 on its inner surface in order to protect the material of the extinguishing agent container 4 from corrosion.
  • Extinguishing liquid 16 in this case in the form of water, is stored under pressure in the extinguishing agent container 4.
  • the extinguishing agent container 4 is preferably in a standby mode at a static pressure of over 5 bar, preferably over 20 bar, in particular over 100 bar.
  • the extinguishing liquid 16 is expelled from the extinguishing agent container 4 via the riser pipe 8 and can then be applied, for example, via a high-pressure water mist system or corresponding high-pressure mist nozzles.
  • the present fire-fighting system is used in conventional sprinkler systems, since the problem of freezing also exists there.
  • the heating device in question can be used on the fire fighting system 2 shown.
  • Fig. 2 shows the riser tube 6, which is encased by a heating sleeve 18.
  • the heating sleeve 18 is connected directly to the outer wall of the tube 6, for example glued.
  • the connection between the heating sleeve 18 and the riser pipe 6 is preferably such that no space is formed between the outer wall of the pipe 6 and the heating sleeve 8.
  • the connection between heating sleeve 18 and riser pipe 6 is such that no gas or liquid can flow between heating sleeve 18 and riser pipe 6.
  • At least one heating resistor 20 is provided in the heating jacket 18.
  • the heating resistor 20 is encapsulated in the heating sleeve 18 and wound around the riser pipe in the assembled state.
  • the material of the heating jacket 18 is preferably a solid material, in particular made of a non-conductive metal alloy or a non-conductive metal oxide.
  • At least one heating resistor 20 is guided as a heating wire in the interior of the heating jacket 18. Due to the insulating property of the material of the heating jacket 18, the / the heating resistors 20 can be guided directly in the material of the heating jacket 18.
  • Fig. 3a shows a development of a heating jacket 18 in a plan view.
  • Two heating resistors 20a, 20b which can be switched separately from one another are guided in the heating jacket 18. It can be seen that the heating resistors 20a, 20b each have two electrical connections 22 (22a ', 22a "and 22b', 22b"). Via each of these two electrical connections 22, the heating resistors 20a, 20b, which can be embodied as heating wires, can each be supplied with an electrical voltage, which can also be different.
  • the electrical power fed into the heating resistors 22a, 22b can be different, so that the heating resistors 22a, 22b can have different heating powers.
  • the heating sleeve 18 can be wrapped around the riser pipe 6 if the material of the heating sleeve 18 and the heating resistors 22a, 22b is plastically deformable.
  • a minimum bending radius can be predetermined by the outer radius of the riser pipe 16. Up to such a bending radius, the material of the heating sleeve 18 and the heating resistor 20a, 20b should be plastically deformable without destruction.
  • Fig. 3b shows a cross section through a heating jacket 18. It can be seen that the conductor cross sections of the heating resistors 20a, 20b can be of different sizes, which leads to different heating outputs, in particular different current carrying capacities. The melting points of the materials of the heating resistors 20a, 20b can also be different.
  • Fig. 4 shows a further embodiment of a heating means 24 on a riser tube 6.
  • the heating means 24 is formed from an outer tube 24a and filling material 24c arranged in an annular space 24b between the outer tube 24a and the riser tube 6 and at least one heating resistor 20.
  • the filling material 24 is preferably electrically non-conductive and thus insulates the Heating resistor 20.
  • the material is preferably a good thermal conductor, so that the heating power of the heating resistor 20 can be delivered to the extinguishing agent 16 via the outer tube 24a without a great time delay.
  • a heating jacket 18, as in Fig. 3a is shown can around the riser 6 in the in Fig. 5 shown form are wound or wound.
  • a heating wire can also be wound around the tube.
  • a single heating wire can be wrapped around the riser.
  • the heating wire can be formed from an outer layer with a non-conductive oxide and can have the actual heating element with an electrically conductive wire inside.
  • the heating wire is preferably plastically deformable, and a bending radius with which the wire can be bent without being destroyed or injured can correspond approximately to the outer radius of the tube.
  • the heating wire itself can be so flexible that it can be wrapped around the riser pipe.
  • the wire is not mounted directly on the tube, but on a holder attached to the tube.
  • the heating means do not necessarily have to be arranged on the riser pipe 6, but can also be arranged on the adapter piece 8 (not shown) and also on the outer lateral surface of the extinguishing agent container 6.
  • a heating mat 26 is shown which has two switching resistors 20 (not shown) which can be switched separately from one another.
  • the heating resistors can be operated at different times and with different electrical outputs via electrical connections 22 (not shown), so that depending on a temperature of the extinguishing agent container 6 or of the extinguishing agent 16 stored in the extinguishing agent container 6, only one heating resistor or optionally two heating resistors can be operated.
  • connection and disconnection of the electrical supply to the heating resistors 20a, 20b is in the Fig. 7 shown.
  • a 24 V DC voltage supply 28 is shown as an accumulator.
  • a rectifier 30 is provided, which is connected to the voltage supply of the vehicle, for example a rail vehicle, and provides an electrical direct voltage of 380 V or 400 V via its outlets.
  • the respective accumulator 28 and rectifier 30 are connected to the electrical connections 22 of the heating resistors 20a, 20b (not shown) via respective switches 32, 34.
  • a control circuit 36 receives a temperature signal 38 from a temperature sensor (not shown) and evaluates it. Depending on the evaluation of the temperature signal 38, the control circuit 36 closes or opens the switches 32, 34. Thus, if the temperature falls below a first limit, for example 10 ° C., the switch 32 can be closed while the switch 34 remains open.
  • the heating resistor 20a is operated with a relatively small electrical power and the temperature of the extinguishing agent 16 is only maintained. However, if the outside temperature continues to drop, this low heating output may not be sufficient. The temperature of the extinguishing agent then drops below a second limit temperature. Even when the two heaters are completely switched off, e.g.
  • the temperature of the extinguishing liquid 16 can drop below the second, lower than the first limit temperature.
  • a temperature triggers a corresponding temperature signal 38, which is evaluated by the control circuit 36 in such a way that the switch 34 is closed.
  • the switch 34 can be closed cumulatively to the switch 32 or alternatively to the switch 32.
  • Fig. 8 shows a detailed view of an opening 4a on an extinguishing agent container 4. It can be seen that the adapter piece 8 is screwed to the opening mouth of the opening 4.
  • a first temperature sensor 40a can be arranged outside the adapter piece 8.
  • a second temperature sensor 40b can be arranged inside the extinguishing agent container 4. The temperature sensors 40a, 40b can transmit a temperature signal 38 to the controller 36.
  • the heating wire can be detached from the riser pipe in the region of the opening 4a and to be guided outwards in a separately sealed manner through the valve body and to be connected to the energy source there.
  • the internal heating element e.g. the heating wire can either be led through the valve body or inside the riser pipe to the outside.
  • the heating wire can have an electrical connection to the voltage supply on the valve, wherein a pressure-tight closure with an external plug can be used. The electrical connection can then be implemented on the outside.
  • the heating sleeve 18 is arranged directly on the riser pipe 6.
  • the riser pipe 6 is passed through the adapter piece 8 together with the heating jacket 18, which is preferably made of metal at least on its outer surface.
  • the heating sleeve 18 is received in a sealing manner, which is indicated schematically by the O-rings 8a and 8b.
  • the seal is well known and is therefore not described in detail.
  • the electrical connections 22a and 22b are provided, via which the heating resistors 20a, 20b of the heating sleeve 18 can be electrically contacted.
  • the heating resistors 20a, 20b are included operated with a hysteresis.
  • Fig. 9 is a temperature value on the X axis in ° C.
  • Switching states 1 and 2 are also plotted on the Y axis. Switching state 1 means that only one heating resistor is activated and switching state 2 means that both heating resistors are activated, i.e. electrical power is applied.
  • a first heating resistor is activated, for example, when a temperature of 5 ° C. is reached. For example, this can be the one to which the lower electrical power is applied.
  • the first heating resistor remains switched on as long as the temperature is between 0 and 10 ° C. Switching state 1 is only exited and the first heating resistor is switched off again when the temperature exceeds 10 ° C.
  • switching state 2 is switched on.
  • both heating resistors are preferably supplied with electrical power, the second heating resistor being supplied with a considerably higher electrical power than the first heating resistor. If the temperature continues to drop, it remains in switching state 2. However, the second heating resistor is only deactivated again when the temperature exceeds 5 ° C. The switching frequency is reduced by this hysteresis.
  • Fig. 10 shows a rail vehicle 42 with a piping system 44 and water mist nozzles 46a-c.
  • the piping system 44 is coupled to two extinguishing agent containers 4.
  • the extinguishing agent containers 4 are controlled by a central controller 36, which is connected to a fire alarm center (not shown). In the event of a fire, the valves 10 are opened via the control center 36 and extinguishing agent emerges from the nozzles 46a-c.
  • the controller 36 also monitors a temperature of the extinguishing agent container 4 and controls one depending on the temperature Energy supply 50, which is coupled, for example, to the central energy supply of the rail vehicle 42.
  • the control of the extinguishing agent containers or the heaters therein takes place as described above.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pipe Accessories (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Catching Or Destruction (AREA)
  • Control Of Resistance Heating (AREA)
EP16766926.6A 2015-09-14 2016-09-14 Rohrheizung Active EP3349866B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16766926T PL3349866T3 (pl) 2015-09-14 2016-09-14 Rurowe urządzenie grzewcze

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015115450.1A DE102015115450A1 (de) 2015-09-14 2015-09-14 Rohrheizung
PCT/EP2016/071675 WO2017046154A1 (de) 2015-09-14 2016-09-14 Rohrheizung

Publications (2)

Publication Number Publication Date
EP3349866A1 EP3349866A1 (de) 2018-07-25
EP3349866B1 true EP3349866B1 (de) 2020-05-20

Family

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CN109373089A (zh) * 2018-11-22 2019-02-22 南通星球石墨设备有限公司 一种防止氯化钙溶液在管道内壁易结晶的装置
JP2020142032A (ja) * 2019-03-08 2020-09-10 ヤマトプロテック株式会社 凍結防止システム及び消火設備
CN111617424A (zh) * 2020-05-28 2020-09-04 湖北及安盾消防科技有限公司 灭火装置及灭火系统
CN112856482A (zh) * 2021-01-21 2021-05-28 胡兰英 一种用于农村厨房木材燃烧余渣的灭火装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355572A (en) * 1964-07-01 1967-11-28 Moore & Co Samuel Composite electrically heated tubing product
DE2235676A1 (de) * 1972-07-20 1974-02-07 Inter Control Koehler Hermann Vorrichtung zur bestimmung der temperatur eines mediums in einem gehaeuse
JPS60211191A (ja) 1984-04-04 1985-10-23 株式会社日立製作所 配管用長尺保温材
JPS61200988A (ja) 1984-08-13 1986-09-05 エイチエスシ−・リサ−チ・デイベロツプメント・コ−ポレ−シヨン 螢光測定法のための試薬
JPS61200988U (zh) * 1985-06-05 1986-12-16
DE3938394A1 (de) 1989-11-18 1991-05-23 Preussag Ag Minimax Feuerloeschanlage
JP2000130652A (ja) 1998-10-27 2000-05-12 Inax Corp フレキホース
JP4184647B2 (ja) * 2001-10-12 2008-11-19 ホーチキ株式会社 消火器および中和器
JP2003173864A (ja) 2001-12-05 2003-06-20 Ohsin Denko:Kk 凍結防止用加熱体
JP4293081B2 (ja) 2004-07-23 2009-07-08 パナソニック株式会社 流体加熱装置およびそれを用いた各種の洗浄装置
DE102005018235B4 (de) * 2005-04-19 2007-03-29 Bombardier Transportation Gmbh Brandbekämpfung in Lokomotiven
DE102006032503A1 (de) * 2006-07-12 2008-01-17 Fogtec Brandschutz Gmbh & Co. Kg Verfahren und Vorrichtung zur Brandbekämpfung
GB2449131A (en) * 2007-07-10 2008-11-12 Dean Wilkinson Fire sprinkler assembly
CN101411928A (zh) * 2008-11-28 2009-04-22 四川威龙消防设备有限公司 带有内置蒸发器的定压贮存式高压二氧化碳灭火装置
DE202011106751U1 (de) * 2011-10-14 2013-01-18 Voss Automotive Gmbh Zumindest teilweise beheizbarer Leitungsverbinder für eine beheizbare Medienleitung sowie konfektionierte Medienleitung mit einem solchen Leitungsverbinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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PL3349866T3 (pl) 2020-11-16
DK3349866T3 (da) 2020-08-24
JP2018534003A (ja) 2018-11-22
JP6474942B2 (ja) 2019-02-27
US20180250539A1 (en) 2018-09-06
ES2811910T3 (es) 2021-03-15
US11147994B2 (en) 2021-10-19
KR102001194B1 (ko) 2019-07-17
CN108348794A (zh) 2018-07-31
EP3349866A1 (de) 2018-07-25
KR20180049096A (ko) 2018-05-10
WO2017046154A1 (de) 2017-03-23
DE102015115450A1 (de) 2017-03-16

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