EP1095673A2 - Zumischeinrichtung für Feuerlöschanlagen - Google Patents
Zumischeinrichtung für Feuerlöschanlagen Download PDFInfo
- Publication number
- EP1095673A2 EP1095673A2 EP00890323A EP00890323A EP1095673A2 EP 1095673 A2 EP1095673 A2 EP 1095673A2 EP 00890323 A EP00890323 A EP 00890323A EP 00890323 A EP00890323 A EP 00890323A EP 1095673 A2 EP1095673 A2 EP 1095673A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- line
- additive
- conveyor
- mixing device
- admixing
- 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- Withdrawn
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
Definitions
- the present invention relates to an admixing device for fire extinguishing systems for Admixing a foam or film-forming additive to a stream of extinguishing water, with an admixture line for the additive, which is connected to an extinguishing water line, a feed line for the additive from a storage container, a conveyor with a drive for conveying the additive, which conveyor on the suction side with the Supply line and on the pressure side is connected to the admixing line, and one Control unit with which the amount of additive to be added to the extinguishing water is set by means of a control of the drive.
- Such admixing devices are known from the prior art, e.g. from EP 0 867 202 A, known.
- a problem with known fire extinguishing systems is the greatest possible flexibility in in relation to the flow rate of the extinguishing water and the concentration of the additive in the To have fire water. It is both necessary to have consistently high concentrations Additive with high throughput quantities as well as low concentrations of additive to be able to guarantee with low throughput quantities.
- a product called FoamPro ® 3000D is known from a prospectus from Hypro ® Corporation, in which a second smaller pump is provided to cover a larger range of the concentration of the additive or the throughput of the extinguishing water in addition to the pump provided as the standard delivery device.
- the smaller pump is intended to cover the areas of a low flow rate of extinguishing water that cannot be reached by the larger pump with a low concentration of the additive.
- it is very complex to have to provide two full-fledged pumps in a fire extinguishing system.
- the present invention has for its object a mixing device for To provide fire extinguishing systems, in which without additional equipment Effort with a single plant very large ranges of throughput of the Extinguishing water and concentration of the additive in the extinguishing water must be covered can.
- the conveyor comprises at least two conveyor units, of which at least one conveyor unit by means of the control unit on the suction side of the Supply line switched on or off the supply line and / or on the pressure side of the Mixing line can be switched on or off from the mixing line, and that the Conveyor units are driven by a single drive.
- the conveying member is preferably a positive-displacement pump.
- This is particularly preferred Conveying member a piston pump with two rows of pistons, further preferably each of the two rows of pistons comprises at least two pistons, preferably three pistons.
- the drive of the conveyor by means of the control device, e.g. by Changing the speed regulated. This means that the admixing of the Additive to the extinguishing water from a very low supply (only one when switched on Delivery unit and low speed of the drive) up to very high. Feed (at Switching on all conveyor units and high speed of the drive) at a very constant Operating performance possible.
- the individual pistons act as the Conveyor units.
- the piston pump is powered by a single drive, which is controlled by the controller e.g. is controlled by changing the speed.
- the individual pistons can e.g. by means of valves on the suction side with the feed line for the additive in Connect or be disconnected.
- the Piston connected on the pressure side to the admixture line or from it be separated. In combination with the regulation of the speed of the drive this results a great deal of flexibility with regard to the achievable throughput quantities of fire-fighting water or concentration of the admixed additive.
- the device according to the invention enables reliable operation of one Area with 100 l / min flow rate of extinguishing water and only 1% concentration of additive up to 3000 l / min extinguishing water possible with 6% concentration of additive.
- the preferred embodiment of the delivery element as a piston pump with two rows of pistons yet another advantage that due to the volumetric principle of funding Need for a flow meter in the admixing line, e.g. in EP 0 867 202 described, does not apply.
- Another preferred embodiment of the admixing device according to the invention is characterized in that a leading from the fire water line to the conveyor external bypass line and a control element controlled by the control unit, e.g. a valve which is used to selectively connect the suction side of a delivery unit with the Feed line or with the external bypass line is provided. So that can Conveyor unit in the sense of the present invention to and from the feed line be switched off.
- the delivery unit When a conveyor unit is disconnected from the feed line for the additive, in in this case, the delivery unit is connected to the external bypass line and promotes extinguishing water in the admixing pipe instead of the additive.
- the alternative or in addition to the external Bypass line is one of the at least one conveyor unit Pressure side of the delivery unit leading to the suction side internal bypass line and one of the Control unit controlled regulating body, e.g. a valve which can be selected Connect the pressure side of the delivery unit to the admixing line or to the internal one Bypass line is provided.
- the conveyor unit in the sense of the present Invention of the admixture line to be switched on or off.
- the control element can act as a simple closing element in the internal bypass line be arranged.
- two or more conveyor units can preferably be connected to one another internal bypass lines and a single regulatory body, which can be selected Connect the pressure sides of the conveyor units to the admixing line or to the internal one Bypass lines are used.
- the conveying units are preferably connected in parallel in the conveying body and each directly with connected to the feed line and the admixing line.
- control unit comprises the Mixing device according to the invention a frequency converter with which the drive of the funding body is regulated.
- 1 denotes a fire water pipe, by means of the fire water from a tank (not shown) is transported to a delivery point (not shown).
- About the Mixing line 2 is in the embodiment shown by means of two sub-lines 21 and 22 admixed admixture from the conveyor 5 of the fire water line 1.
- the additive is conveying member 5 from a tank (not shown) via feed line 3 supplied by means of the two sub-lines 31 and 32.
- the delivery member 5 is a piston pump with two Piston rows with three pistons 51 to 56.
- the pistons 51 to 56 of the pump 5 are driven by a single drive 6 by means of a gear 61.
- the speed of the Drive 6 is controlled by a frequency converter 71 controlled by control unit 7 regulated.
- the suction sides can be controlled by the valves 73 and 74 controlled by the control unit 7 the pistons 51 to 56 optionally with the feed lines 31 and 32 or with the Sub-lines 41 and 42 of an external branching from the extinguishing water line 1 Bypass line 4 are connected. In the embodiment shown, this is for the two Piston rows 51 to 53 or 54 to 56 each independently possible.
- the pistons 51 to 56 are connected on the suction side directly to the feed lines 31 and 32, which in 1 is only shown for the piston series 54 to 56.
- bypass line 57 and the tap 72 are the preferred ones Embodiment of the invention indicated, in which two conveyor units (here the Pistons 51 and 52) via interconnected bypass lines and a regulator a complex that can be switched on or off are connected.
- FIG. 1 A preferred embodiment of this connection can be seen in FIG
- the pressure side of the piston 52 leads to an internal bypass line 57a via a valve 72 Suction side of the piston 52.
- a similar arrangement is for the piston 51 with a given internal bypass line 57b.
- the two internal bypass lines 57a and 57b are connected to each other and are shared via the control unit 7 controlled valve 72 opened or closed.
- both pistons 51 and 52 promote the additive Admixture line. If the tap 72 is opened, the additive becomes instead of Mixing line in the bypass lines 57a and 57b and via the tap 72 to the Suction sides of the pistons 51 and 52 promoted, which results in an internal circuit.
- a flow meter 8 is provided in the extinguishing water line 1, the measured values of which are sent to the Control unit 7 are transmitted.
- Another flow meter in the admixing line 2, as proposed in the prior art, is due to the volumetric principle of delivery not necessary with a pump that constantly pumps according to the operating line.
- the desired concentration of additive in the Extinguishing water can be entered.
- the admixing device is idle, i.e. that both piston rows of the pump 5 via the valves 73 and 74 with the external Bypass lines 41 and 42 are connected and pure via the admixing lines 21 and 22 Pump fire water back to fire water line 1.
- the valve 73 first switches over and connects the piston series 51 to 53 with the feed line 32. Convey due to the position of the tap 72 shown in FIG. 1 the pistons 51 and 52 the additive via the internal bypass line 57 (or according to Figure 2 on the internal bypass lines 57a and 57b) in the circuit, and it is only about the piston 53 additive supplied via the admixing line 22 to the extinguishing water line 1.
- the The amount of additive added can be increased up to a fixed switchover point.
- valve 74 also connects the row of pistons 54 and 56 to the feed line 31 and delivers them via the Mixing line 21 Additive to fire water line 1.
- the speed of the Drive 6 lowered to half, which means that the amount of additive added to the last value reached by the piston series 51 to 53 remains.
- Additives can be increased continuously up to the maximum funding.
- the respective transitions are made by programming the control device accordingly from the conveyance of the additive by a piston to all pistons both in Can be flexibly regulated in the direction of higher or lower additional quantities.
- the described Switching points can e.g. if there is an immediate need for high quantities of additives appropriate programming are skipped, so that with the invention Setup with the admixture of the additive immediately at any operating point can be used.
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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)
Abstract
Description
Claims (8)
- Zumischeinrichtung für Feuerlöschanlagen zum Zumischen eines schaum- oder filmbildenden Zusatzmittels zu einem Löschwasserstrom, mit einer Zumischleitung für das Zusatzmittel, die an eine Löschwasserleitung angeschlossen ist, einer Zuführleitung für das Zusatzmittel aus einem Vorratsbehälter, einem Förderorgan mit einem Antrieb zur Förderung des Zusatzmittels, welches Förderorgan an der Saugseite mit der Zuführleitung und an der Druckseite mit der Zumischleitung verbunden ist, und einer Steuerungseinheit, mit der die Menge des zum Löschwasser zuzumischenden Zusatzmittels mittels einer Regelung des Antriebes eingestellt wird, dadurch gekennzeichnet, daß das Förderorgan zumindest zwei Fördereinheiten umfaßt, von denen zumindest eine Fördereinheit mittels der Steuerungseinheit an der Saugseite der Zuführleitung zu- bzw. von der Zuführleitung weggeschalten und/oder an der Druckseite der Zumischleitung zu- bzw. von der Zumischleitung weggeschalten werden kann, und daß die Fördereinheiten durch einen einzigen Antrieb angetrieben werden.
- Zumischeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Förderorgan eine zwangsfördernde Pumpe ist.
- Zumischeinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Förderorgan eine Kolbenpumpe mit zwei Kolbenreihen ist.
- Zumischeinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß jede der zwei Kolbenreihen zumindest zwei Kolben, vorzugsweise drei Kolben umfaßt.
- Zumischeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine von der Löschwasserleitung zum Förderorgan führende externe Bypassleitung und ein von der Steuerungseinheit gesteuertes Regelungsorgan zum wahlweisen Verbinden der Saugseite einer Fördereinheit mit der Zuführleitung bzw. mit der externen Bypassleitung vorgesehen sind.
- Zumischeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an einer Fördereinheit eine von der Druckseite der Fördereinheit zur Saugseite führende interne Bypassleitung und ein von der Steuerungseinheit gesteuertes Regelungsorgan zum wahlweisen Verbinden der Druckseite der Fördereinheit mit der Zumischleitung bzw. mit der internen Bypassleitung vorgesehen ist.
- Zumischeinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß an zwei oder mehreren Fördereinheiten miteinander verbundene interne Bypassleitungen und ein einziges Regelungsorgan zum wahlweisen Verbinden der Druckseiten der Fördereinheiten mit der Zumischleitung bzw. mit den internen Bypassleitungen vorgesehen sind.
- Zumischeinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Steuerungseinheit einen Frequenzumformer umfaßt, mit welchem der Antrieb des Förderorganes geregelt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0074199U AT3857U1 (de) | 1999-10-25 | 1999-10-25 | Zumischeinrichtung für feuerlöschanlagen |
| AT74199U | 1999-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1095673A2 true EP1095673A2 (de) | 2001-05-02 |
| EP1095673A3 EP1095673A3 (de) | 2002-02-06 |
Family
ID=3498587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00890323A Withdrawn EP1095673A3 (de) | 1999-10-25 | 2000-10-24 | Zumischeinrichtung für Feuerlöschanlagen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1095673A3 (de) |
| AT (1) | AT3857U1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1549401A4 (de) * | 2002-08-02 | 2007-08-08 | Pierce Mfg Inc | Schaumkonzentrateinteilungssystem und verfahren für rettungs- und feuerwehrfahrzeuge |
| CN113224653A (zh) * | 2021-05-12 | 2021-08-06 | 广州高旺消防设备有限公司 | 一种外储压灭火装置 |
| IT202200003083A1 (it) * | 2022-02-18 | 2023-08-18 | Magirus Gmbh | Sistema di pompa per un sistema di generazione di miscela antincendio |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867202A2 (de) | 1997-03-29 | 1998-09-30 | Erich Müller | Zumischeinrichtung für Feuerlöschanlagen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3726672A1 (de) * | 1986-10-09 | 1988-04-14 | Total Feuerschutz Gmbh | Einrichtung fuer feuerloeschfahrzeuge mit einem automatischen, elektronisch gesteuerten zumischer |
| US5174383A (en) * | 1988-09-08 | 1992-12-29 | Hypro Corporation | Apparatus and method for controlling the introduction of chemical foamant into water stream in fire-fighting equipment |
| US5803596A (en) * | 1996-05-17 | 1998-09-08 | Stephens; Patrick J. | Method and apparatus for high capacity production of finished aqueous foam with continuously adjustable proportioning |
| DE29903572U1 (de) * | 1999-02-18 | 1999-07-08 | Schmitz GmbH Feuerwehr- und Umwelttechnik, 14943 Luckenwalde | Mobile Pumpeneinheit zur Brandbekämpfung |
-
1999
- 1999-10-25 AT AT0074199U patent/AT3857U1/de not_active IP Right Cessation
-
2000
- 2000-10-24 EP EP00890323A patent/EP1095673A3/de not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0867202A2 (de) | 1997-03-29 | 1998-09-30 | Erich Müller | Zumischeinrichtung für Feuerlöschanlagen |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1549401A4 (de) * | 2002-08-02 | 2007-08-08 | Pierce Mfg Inc | Schaumkonzentrateinteilungssystem und verfahren für rettungs- und feuerwehrfahrzeuge |
| CN113224653A (zh) * | 2021-05-12 | 2021-08-06 | 广州高旺消防设备有限公司 | 一种外储压灭火装置 |
| IT202200003083A1 (it) * | 2022-02-18 | 2023-08-18 | Magirus Gmbh | Sistema di pompa per un sistema di generazione di miscela antincendio |
| EP4230267A1 (de) * | 2022-02-18 | 2023-08-23 | Magirus GmbH | Pumpensystem für ein feuerlöschmischungserzeugungssystem |
Also Published As
| Publication number | Publication date |
|---|---|
| AT3857U1 (de) | 2000-09-25 |
| EP1095673A3 (de) | 2002-02-06 |
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