EP3459601B1 - Sprinklerkopf - Google Patents

Sprinklerkopf Download PDF

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Publication number
EP3459601B1
EP3459601B1 EP18192252.7A EP18192252A EP3459601B1 EP 3459601 B1 EP3459601 B1 EP 3459601B1 EP 18192252 A EP18192252 A EP 18192252A EP 3459601 B1 EP3459601 B1 EP 3459601B1
Authority
EP
European Patent Office
Prior art keywords
sprinkler
electrical
closing body
sprinkler head
thermal release
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
EP18192252.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3459601A1 (de
Inventor
Bodo Müller
Jürgen Teschner
Rüdiger Klug
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.)
Job Lizenz GmbH and Co KG
Original Assignee
Job Lizenz 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 Job Lizenz GmbH and Co KG filed Critical Job Lizenz GmbH and Co KG
Priority to PL18192252T priority Critical patent/PL3459601T3/pl
Publication of EP3459601A1 publication Critical patent/EP3459601A1/de
Application granted granted Critical
Publication of EP3459601B1 publication Critical patent/EP3459601B1/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
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/04—Control of fire-fighting equipment with electrically-controlled release
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/005—Delivery of fire-extinguishing material using nozzles
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors

Definitions

  • the invention relates to a sprinkler head having the features of the preamble of claim 1.
  • Sprinkler systems have been used for many decades fire protection and fire fighting in buildings.
  • Such sprinkler systems typically include a pressurized sprinkler fluid storage vessel and a conduit system having manifolds that terminate in ceiling areas of spaces to be protected and into which sprinkler heads are inserted.
  • Such sprinkler heads have - in a normal case closed - valves that open in a triggering case and allow the sprinkler liquid escape.
  • the sprinkler heads have baffle and distributor plates bouncing and distributing the pressurized sprinkler liquid to wet a large area of the sprinkler liquid.
  • thermal tripping elements which are arranged between an abutment section designed for their support and a closure body of the valve and thus normally keep the valve and thus an outlet of the sprinkler liquid closed.
  • the thermal tripping elements heat up to a triggering temperature, causing them to trigger and release the closure body, the respective valve and thus open the outlet of the sprinkler liquid.
  • Typical thermal tripping elements may in particular comprise supporting bodies from a melting solder or else glass ampoules, also called glass vessels, which are filled with a triggering liquid, as a rule also with a gas bubble. The latter are triggered by the fact that, on heating, the thermal tripping liquid builds up a pressure inside the glass vessel due to its expansion, which finally causes the wall of the glass vessel to burst, so that the glass ampoule is destroyed.
  • the tripping principle described above functions purely passive, that is, the sprinkler head, in fact the thermal tripping element arranged thereon, responds to an increase in the ambient temperature which typically occurs as a result of a fire.
  • a sprinkler head for a sprinkler system initially has a line section for a sprinkler liquid, this line section being formed at a first end for connection to a connection of a sprinkler line of a sprinkler system (eg with a screw thread) and having an outlet opening at a second end.
  • the sprinkler head has a closure body, which is formed from an electrically conductive material and cooperates with a seal, for tightly closing the outlet opening of the line section. He further has a rigidly connected to the line section via a support member abutment portion, wherein the support member and the abutment portion formed of electrically conductive material and are electrically conductively connected.
  • the sprinkler head according to the invention comprises a thermal tripping element arranged between the abutment portion and the closure body such that the closure body is held in a normal position by the thermal tripping element in a position in which it seals the outlet opening of the line section in cooperation with the seal. that is tight against an outlet of sprinkler liquid, closes that in a release position in which the thermal release element thermally triggered, the closure body is released from its the outlet opening of the line section closing position.
  • triggering means are provided for the controlled active thermal release of the thermal tripping element by active heating of the thermal tripping element.
  • the triggering means comprise an electrical circuit board with a control arranged thereon and an electrical power supply and an electrical conduction path having an electrical resistance along the thermal tripping element
  • the electrical circuit board has an upper side and a lower side and is on a first of its sides, top or bottom, in electrical contact with the closure body, on a second of its sides, bottom or top, is in electrical contact with the support element, wherein the abutment portion and the closure body each electrically with the along the thermal tripping element guided electrical conduction path are connected, so that by means of the control on the circuit board fed by the electrical power supply current flow through the support element, the abutment section, the electric conduction path guided along the thermal tripping element and the closure body can be produced, which causes active heating and thus triggering of the thermal tripping element.
  • the active heating of the trigger element is carried out in particular by the heat flowing through the electrical resistance of the current line path.
  • the sprinkler head according to the invention is characterized in that the electrical circuit board is arranged on the sprinkler head itself and includes the electrical power supply, which may be formed for example by a battery or a rechargeable battery, for example a button cell battery, independent of an external electrical supply and thus can be used independently. It is therefore particularly suitable for retrofitting into existing sprinkler systems, without having to relocate there about electrical supply lines are.
  • the construction of the sprinkler head according to the invention is conceived simply conceivable, in particular the fact that the circuit which is closed for an active triggering of the thermal tripping element does not require its own cable, is formed solely by electrically conductive elements of the sprinkler head and corresponding tracks on the circuit board.
  • a communication interface for wireless communication of the controller with a digital remote station is arranged on the electrical circuit board.
  • a communication interface can be, for example, an interface according to the WLAN standard, but also an interface for communication by means of mobile radio technology (eg UMTS or LTE) or via standardized transmission protocols from the fire alarm industry or the like.
  • systems can be created that detect a source of fire via smoke detectors and - controlled by a central reporting or administrative office - then initiate a remote release of lying in the environment to the fire sprinkler heads, all this by means of wireless communication.
  • the fact that the thermal tripping element can also be passively triggered by an increased ambient temperature ensures that in the event of a failure of the communication or in case of failure, the active trip, for example due to a no longer sufficiently charged with energy electrical power supply the circuit board continues to passively fire the sprinkler head in a classical manner when the ambient air is heated due to a fire, the temperature rises above a trip temperature of the thermal trip element.
  • the thermal tripping element in the sprinkler head according to the invention may be a glass ampoule filled with a tripping liquid, wherein the conduction path is formed by an electrically conductive coating or an electrically conductive sleeve on an outer surface of the glass ampoule and / or an electrical guided inside the glass ampoule Head includes.
  • the electrical resistance of the line path is selected so that when exposed to a tripping current, this conduction path is heated to such a temperature that thereby the triggering temperature of the glass ampoule is reached or exceeded.
  • the electrical circuit board can be clamped in particular with contact portions on its top and on its underside between clamping portions of the closure body and the support member and held there electrically contact.
  • the support element does not necessarily have to be a separate part that is structurally separate or separable from the rest of the sprinkler head, it may for example be integrally formed with the line section or with the walls bounding it, so that these walls of the line section are also included in the support element can.
  • the abutment portion may be formed integrally with the support member.
  • Support member and closure body may be formed, for example, brass, copper, steel or other metal, which is electrically conductive.
  • the circuit board is formed with conductor tracks on both sides, wherein on the top and on the underside of the conductor tracks each contact areas are formed, which is clamped in the solution as described between the support element and closure body electrically contact each one of these elements, so form a circuit that leads along the electrically conductive conduction path along the thermal tripping element.
  • the printed circuit board can also be mechanically held in position by the entrapment. However, the mechanical holding in position of the circuit board can also, optionally in addition, be carried out by further means.
  • the sprinkler head according to the invention can also provide a possibility according to which the control a measuring current on the guided through support member, abutment portion, along the thermal tripping element electrical Conductor path and closing body formed circuit to close from the determined current flow and / or voltage to a state of the thermal tripping element.
  • an interruption of the current flow can show that the thermal tripping element has triggered.
  • This circumstance can then in turn be interpreted as an indication of a source of fire in the area of the sprinkler head concerned, wherein this signal can be made available to a higher-level controller and used there to actively trigger sprinkler heads possibly located in the vicinity of the affected sprinkler head.
  • this signal can be made available to a higher-level controller and used there to actively trigger sprinkler heads possibly located in the vicinity of the affected sprinkler head.
  • it is also possible to carry out a more detailed evaluation for example a change in the current flow with the same applied voltage or a change in the falling voltage at the same current flow to suggest a change in the properties of the electrical conduction path, which in turn, for example, as cracking in a glass ampoule can be valued or the like.
  • the sprinkler head thus formed by means of the control on the electrical circuit board send a signal that there is a defect and maintenance is required. This can be done, for example, via a wireless communication interface advantageously provided as described above.
  • the sprinkler head according to the invention can advantageously have a baffle and distributor plate for distributing the sprinkler liquid, as it is also known in principle in sprinkler heads from the prior art.
  • a baffle and distribution plate is used in particular a distribution of initially frontally flowing sprinkler liquid on a correspondingly large area in order to wet with the sprinkler liquid a large area, preventively protect against fire or to be able to fight a fire occurred there with the sprinkler liquid.
  • the electrical circuit board has advantageously a size and shape, in particular outer contour, with which it does not hinder a desired distribution of the sprinkler liquid in the event of triggering.
  • the printed circuit board for example, when a baffle and distribution plate is provided, in its outer contour so dimensioned that not bouncing from the baffle and distributor plate sprinkler liquid strikes against the circuit board and thus affects the distribution pattern of the sprinkler liquid.
  • the closure bodies are floating, so as to take into account, for example, caused by different temperatures changes in length of the thermal tripping elements, these compensate without compromising the function of the sprinkler head.
  • spring elements between the closure body and a generally already part of the support element forming the edge of the line section are arranged in the region of the outlet opening. This can also be the case with the sprinkler head according to the invention, in which case in order to prevent an electrical short circuit, corresponding insulations are to be provided which prevent an electrical conduction between the closure body and the support element via the spring element.
  • the sprinkler head 1 has a largely integrally formed body, in which on the one hand a line section 2 is formed for a sprinkler liquid, on the other hand, a support member 6, in which an abutment portion 7 is arranged.
  • the conduit section 2 is surrounded by a substantially cylindrical wall which has an external thread 3 on a side located at a first end of the conduit section 2 for screwing into an open tube end provided with a corresponding internal thread a sprinkler pipe or in a line end of a sprinkler line.
  • the line section 2 is provided with an outlet opening 4, from which sprinkler liquid emerges from the sprinkler head 1 in the event of activation.
  • This outlet opening 4 is sealingly closed in such a manner with a closure body 5, which cooperates with a sealing element, as will be described in more detail below, that with sprinkler head connected to a sprinkler pipe or to a sprinkler line and with sprinkler liquid present in the line section 2 this does not escape through the outlet opening 4.
  • the closure body 5 is held by a between the abutment portion 7 and the closure body 5 axially clamped thermal release element 8 in this sealing position, wherein the thermal release element 8 in this embodiment is filled with a thermal tripping liquid, closed glass ampoule.
  • Such glass ampoules are well known and are for example also produced by the present applicant in large quantities. They therefore need not be described in detail here in their general structure and mode of operation.
  • the thermal tripping element 8 in the form of the glass ampoule is provided with an electrical coating 9 applied to its surface, which extends over the longitudinal direction of the thermal tripping element 8 in the form of the glass ampoule.
  • abutment portion 7 is formed of an electrically conductive metal, wherein the abutment portion 7 is screwed into the support member 6 in such a way that an electrical connection between these two components is given
  • the closure body 5 also consists of an electrically conductive metal.
  • these elements may be formed from brass, but they may also be formed from various other electrically conductive materials, in particular metals, such as copper or steel. As in particular in FIG.
  • a spring element in the form of a plate spring 15 is inserted between a to be calculated to the support member 6 outer wall to the line section 2 and the closure body 5, a spring element in the form of a plate spring 15 is inserted.
  • a bias in the axial direction on the thermal Trigger element in the form of the glass ampule 8 by pressing this with a predetermined force against the abutment portion 7.
  • Part of the sprinkler head 1 according to the invention is also a printed circuit board 10, which may be designed in particular in the form of a conventional board or a PCB (printed circuit board) and which symbolizes with a controller, here in the form of a chip 12, and an electrical power supply, here shown in the form of a battery 11, is equipped.
  • the circuit board 10 is provided on its upper side and on its underside each with contact areas numeral 14, wherein the circuit board 10 with one of the contact areas 14, the closure body 5, with another of the contact areas 14, the support member 6 electrically contacted.
  • the contact regions 14 are - in a manner not shown here - connected to conductor tracks, which are formed on the circuit board 10 and via which, connected via the controller 12, an electrical voltage provided by the battery 11 can be applied. Due to this applied electrical voltage between the opposing contact regions 14 can then flow an electric current through the support member 6, the abutment portion 7, the electrically conductive coating 9 and the closure body 5.
  • This electric current can be selected by the controller 12 so that he due to the resistance of the electrical coating 9 leads there to such a warming that the thermal tripping element 8 is heated in the form of glass ampoule up to a triggering temperature, or beyond, so that it triggers, in the case of glass ampoule so through bursts the pressure built-up liquid, and thus releases the closure body 5, which - also driven by the spring force the plate spring 15 - then exits the outlet 4 and thus clears the way for sprinkler liquid to the outside.
  • the sprinkler liquid then impinges on a baffle and distribution plate 13, which ensures in a conventional manner for a large-scale distribution of the sprinkler liquid.
  • Recognizable here is thus an embodiment of a sprinkler head 1 given that controlled by the controller 12 can cause an active triggering of the thermal tripping element 8 by the current through the electrically conductive coating 9 can be routed through the circuit as described above on the glass ampoule, which Current then due to the electrical resistance of the coating 9 leads to a heating and thus an active thermal release of the trigger element 8.
  • the controller 12 is advantageously connected to a (not shown here) interface for wireless communication, via which - advantageously bidirectional - a data exchange with a corresponding remote site can take place.
  • the controller 12 may receive, for example, a trip command, in response to which it switches the current flow as described above and thus causes the triggering of the sprinkler head by triggering the thermal trip element 8.
  • a current lying below the current for triggering of the thermal tripping element 8 can be transmitted via the circuit as described above, which can be used as a detection or measuring current in order to obtain information about the state of the circuit
  • the controller 12 again on the not shown here provide a wireless communication interface to a higher-level system.
  • the controller 12 may, for example, emit a signal when the electrical energy stored in the battery 11 falls below a critical threshold, thereby indicating the need for replacement of the battery 11.
  • FIGS. 5 and 6 an alternative design variant is shown, in which case the structure and also the circuit to be formed are basically identical as described above, so that reference can be made to the above description with regard to the description.
  • the circuit board 10 is electrically contacted in a different manner with the elements closure body 5 and support member 6.
  • contact springs number 16 are arranged, which also press with a mechanical pressure against the respective contact elements.
  • Such an arrangement has the advantage that the printed circuit board 10 does not necessarily have to be mechanically clamped between the closure body 5 and the support element 6 in order to ensure reliable electrical contact.
  • the sprinkler head of the invention formed as a compact unit has a simple structure and is excellently suited to be integrated into a system which, with the active triggering of individual sprinkler heads, has additional functions for fire fighting or for a prophylactic loading of rooms in the vicinity of a fire with sprinkler liquid offers. But above all, the possibility of passive triggering of the sprinkler head remains unimpaired. Here the function is the same as with conventional, purely passive triggering sprinkler heads.
  • the thermal tripping element 8 is triggered by this temperature increase, so that the outlet opening 4 of the line section 2 is released and about sprinkler liquid which can be discharged via the sprinkler line to which the sprinkler head 1 is connected.
  • the sprinkler head 1 according to the invention is particularly well suited for retrofitting into existing sprinkler systems, which still offers no possibility for active triggering as the sprinkler heads.
  • This retrofitting can be done in particular, without this extra electrical supply lines or even electrical communication lines (namely, if the circuit board 10 is equipped with a wireless communication interface) would have to be laid.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP18192252.7A 2017-09-20 2018-09-03 Sprinklerkopf Active EP3459601B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18192252T PL3459601T3 (pl) 2017-09-20 2018-09-03 Głowica tryskacza

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202017105705.4U DE202017105705U1 (de) 2017-09-20 2017-09-20 Sprinklerkopf

Publications (2)

Publication Number Publication Date
EP3459601A1 EP3459601A1 (de) 2019-03-27
EP3459601B1 true EP3459601B1 (de) 2019-10-23

Family

ID=63490330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18192252.7A Active EP3459601B1 (de) 2017-09-20 2018-09-03 Sprinklerkopf

Country Status (10)

Country Link
US (1) US11000717B2 (es)
EP (1) EP3459601B1 (es)
JP (1) JP6845582B2 (es)
KR (1) KR102428643B1 (es)
CN (1) CN109513147B (es)
DE (1) DE202017105705U1 (es)
DK (1) DK3459601T3 (es)
ES (1) ES2764217T3 (es)
PL (1) PL3459601T3 (es)
RU (1) RU2724160C2 (es)

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WO2021009622A1 (en) * 2019-07-12 2021-01-21 Tyco Fire Products Lp Fire protection device with wax coating
EP4142895A4 (en) * 2020-04-28 2024-05-22 Tyco Fire Products Lp SYSTEMS AND METHODS FOR RESISTANCE TRACK SPRINKLER BULBS
CN111632330B (zh) * 2020-06-10 2022-03-08 湖北航天化学技术研究所 一种感温自启动气源装置
KR20240049997A (ko) 2022-10-11 2024-04-18 이정석 자가 점검이 가능한 스프링클러 시스템

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Also Published As

Publication number Publication date
US20190083833A1 (en) 2019-03-21
EP3459601A1 (de) 2019-03-27
DK3459601T3 (da) 2020-01-20
DE202017105705U1 (de) 2018-12-21
JP6845582B2 (ja) 2021-03-17
CN109513147A (zh) 2019-03-26
ES2764217T3 (es) 2020-06-02
KR102428643B1 (ko) 2022-08-02
RU2018132741A (ru) 2020-03-16
KR20190033016A (ko) 2019-03-28
RU2724160C2 (ru) 2020-06-22
PL3459601T3 (pl) 2020-05-18
US11000717B2 (en) 2021-05-11
JP2019055194A (ja) 2019-04-11
CN109513147B (zh) 2021-09-07
RU2018132741A3 (es) 2020-04-24

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