EP0801962A2 - Installation d'extinction d'incendie - Google Patents

Installation d'extinction d'incendie Download PDF

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Publication number
EP0801962A2
EP0801962A2 EP97100906A EP97100906A EP0801962A2 EP 0801962 A2 EP0801962 A2 EP 0801962A2 EP 97100906 A EP97100906 A EP 97100906A EP 97100906 A EP97100906 A EP 97100906A EP 0801962 A2 EP0801962 A2 EP 0801962A2
Authority
EP
European Patent Office
Prior art keywords
valve
drinking water
line
hose
fire extinguishing
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Withdrawn
Application number
EP97100906A
Other languages
German (de)
English (en)
Other versions
EP0801962A3 (fr
Inventor
Rudolf Dipl.-Phys. Büssem
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.)
Total Walther GmbH Feuerschutz und Sicherheit
Original Assignee
Total Walther Feuerschutz GmbH
Total Feuerschutz 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 Total Walther Feuerschutz GmbH, Total Feuerschutz GmbH filed Critical Total Walther Feuerschutz GmbH
Publication of EP0801962A2 publication Critical patent/EP0801962A2/fr
Publication of EP0801962A3 publication Critical patent/EP0801962A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems

Definitions

  • the invention relates to a fire extinguishing system, in particular a sprinkler system, with a water supply connected to a public drinking water network, a physical separation stage being provided between the drinking water network and the fire extinguishing system.
  • Sprinkler systems are operated as wet or dry systems.
  • the pipe network behind the alarm valve is constantly filled with water.
  • the pipe network behind the alarm valve is filled with compressed air.
  • Fire extinguishing systems are rarely used for fire fighting during their lifespan. If they are filled with water and not flowed through, there is a risk that the water remains in the system for so long that it becomes hygienically unsafe. If such systems are connected to the drinking water supply, they can pose a danger to the drinking water.
  • the invention has for its object to prevent the formation of stagnant water in the removal of drinking water for the water supply of a fire extinguishing system with the simplest means and to ensure that it is kept away from the drinking water supply. Prevent fire-fighting water from running back into the drinking water pipe.
  • the separation stage consists of a T-shaped pipe section, the inlet leg connected to the drinking water pipe and the to An outlet leg led to a sewage pipe is each provided with a hose valve and the feed leg to the alarm valve of the sprinkler system is provided with a non-return valve which can be filled with pressurized water, and the hose valves can be controlled via control lines by means of a wind chamber provided with a membrane and a membrane valve.
  • the pump supplying the water boiler space of the wind boiler and the wind boiler sit in a control line originating from the drinking water line.
  • the valve blocking the suction side of the pump is arranged directly behind the tap on the drinking water line in order to make the dead water space as small as possible.
  • the control line feeding the water boiler room is connected at the other end to the check valve and a branch line to the underside of the diaphragm valve.
  • a second control line starting from the drinking water line is connected to the upper part of the diaphragm valve, which is provided with a spring-loaded piston, and two further control lines, each connected to one of the hose valves, extend from the upper part of the diaphragm valve.
  • the physical separation stage is in connection with the atmosphere via the open sewage pipe during the state of operational readiness and is kept absolutely water-free.
  • the diaphragm valve automatically opens the hose valve on the drinking water side and the drain valve on the drain side is closed. This enables the drinking water to flow into the sprinkler pipe network without any problems.
  • a physical separation stage 4 is provided between the drinking water line 1 of a public drinking water network and an alarm valve 3 of the sprinkler line 2 of a sprinkler system.
  • This consists of a T-shaped pipe section 5 with the inlet legs 6, an outlet leg 8 and a feed leg 11.
  • a hose valve 9 is provided between the drinking water line 1 and the inlet leg 6.
  • This consists of a support body 31, a hose 32 and a connecting piece 34 in the valve jacket 35.
  • the support body 31 and the valve jacket 35 form an annular cross section 33.
  • a hose valve 10 is also provided between the outlet leg 8 and a sewage line 7.
  • This valve also consists of a support body 36, a hose 37, a connecting piece 38 in the valve jacket 39 and an annular flow cross-section 40.
  • a check valve 12 is provided, which consists of a housing 41 and a valve plate 42.
  • the wet valve 3 is equipped in a manner known per se with a valve plate 43 and a pressure-increasing device 44, which sets the pressure in the sprinkler line 2 higher than the pressure under the valve plate 43.
  • a control line 13 with a branch line 13a extends from the drinking water line 1.
  • a pump 17 and a valve 18 are in the control line 13 intended. The end of the line 13 is connected to a nozzle 45 of the check valve 12.
  • a wind chamber 19 is connected to the control line 13 via a connection piece 46, a membrane 20 being provided within the wind chamber 19.
  • the wind boiler is divided into an upper and a lower boiler space 47 and 48.
  • the branch line 13a leading from the control line 13 is connected to the lower part 22 of a diaphragm valve 21.
  • a membrane 49 is arranged in this lower part 22.
  • a piston 25 is provided in an upper part 23 of the diaphragm valve 21 and acts on the diaphragm 49 by means of a spring 24.
  • the piston 25 is connected to recesses 26 and configured such that it can be connected to connecting pieces 50 to 52 of the diaphragm valve 21 in each case according to its position.
  • a further control line 14 extends from the drinking water line 1 and is connected to the connecting piece 50 of the diaphragm valve 21.
  • a control line 15 extends from the connecting piece 51 of the diaphragm valve 21 and is connected to the connecting piece 34 of the diaphragm valve 9.
  • a control line 16 extends from the connection piece 52 of the diaphragm valve 21 and is connected to the connection piece 38 of the hose valve 10.
  • Branch lines 27 and 28 are also connected to the control lines 15 and 16, at the end of which nominal leak points 29 and 30 are provided for water renewal and emptying of the control lines 15 and 16. These target leak points are provided with locking devices 53 and 54.
  • the operation of the invention is as follows. First, the system according to FIG. 1 is described in the state of operational readiness. In a manner known per se, the sprinkler pipe 2 and the alarm valve 3 are filled with pressurized water. With that the Valve plate 43 kept closed. When the valve 18 is open, the pump 17 is used to fill the lower boiler space 48 of the wind boiler 19 with pressurized water, so that the membrane 20 bulges upward, thus reducing the size of the upper boiler space 47 and compressing the air therein. At the same time, the housing 41 of the check valve 12 is filled with pressurized water, so that the valve flap 42 is kept closed. The pressure is designed by means of the pressure increasing device 44 so that the valve flap 43 of the alarm valve 3 is not raised.
  • the lower part 22 of the diaphragm valve 21 is filled with pressurized water via the line 13a, so that the diaphragm 49 is pushed upwards and thus the piston 25 is also pushed upwards.
  • the recesses 26 of the piston 25 are connected to the connecting pieces 50 and 51, so that drinking water is led from the drinking water line 1 via the control line 14 to the connecting piece 34 of the hose valve 9 via the recess 26, the connecting piece 51 and the control line 15.
  • the annular space 33 of the hose valve 9 is filled with drinking water and thus the hose 32 is pressed against the support body 31 and thus a flow of the drinking water from the drinking water line 1 into the T-shaped pipe section 5 is avoided.
  • the closure member 53 of the target leak point 29 is closed so far that drinking water can only escape at the target leak rate. In this state, the fire extinguishing system is ready for operation.
  • a sprinkler (or several) opens due to a fire, the pressure in the sprinkler pipe network 2 drops.
  • the pressure drop in the sprinkler pipe network 2 opens the valve flap 43, so that the valve in the non-return valve 12 and in the boiler chamber 48 also Wind boiler 19 located pressure can drop.
  • the compressed air located in the boiler space 47 of the wind boiler 19 can thus expand and the alarming of the alarm valve, which is not reproduced, can thus be operated.
  • the drop in the water pressure in the boiler space 48 of the wind boiler and in the control lines 13 and 13a connected to it leads to the drop in the water pressure in the lower part 22 of the diaphragm valve 21, so that the spring 24 can push the piston 25 downward.
  • the recesses 26 come into a position, whereby the connecting pieces 50 and 52 are brought into connection.
  • the drinking water now flows via the control line 16 to the diaphragm valve 10, so that the hose 37 is pressed against the support body 36 and the hose valve 10 is thus closed.
  • the drinking water escapes from the control line 15, so that the pressure in the annular chamber 33 of the hose valve 9 escapes and the hose valve 9 is thus opened.
  • the drinking water can now flow from the drinking water line 1 via the separation stage 4 into the sprinkler line 2, the valve plate 42 in the non-return valve 12 being opened due to the drinking water pressure.
  • the closure member 54 in the target leak point 30 is closed so far that only drinking water can escape at the target leak rate. This operating state required in the event of a fire is shown in FIG. 2.
  • the alarm valve 3 is provided as a dry alarm valve.
  • the sprinkler pipe network 2 is filled with compressed air in the operational state. If a sprinkler (or more than one) opens due to a fire, the air in the sprinkler pipe network 2 escapes, which had kept the valve flap 43 of the dry alarm valve closed. The water from the boiler room of the wind boiler 19 and the non-return valve 12 flows into the sprinkler pipe network 2. Its pressure drop leads to the previously described control process of the diaphragm valve 21 and to the opening of the hose valve 9 on the drinking water side and to the closing of the drain valve 10.

Landscapes

  • 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)
EP97100906A 1996-04-18 1997-01-22 Installation d'extinction d'incendie Withdrawn EP0801962A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996115268 DE19615268A1 (de) 1996-04-18 1996-04-18 Feuerlöschanlage
DE19615268 1996-04-18

Publications (2)

Publication Number Publication Date
EP0801962A2 true EP0801962A2 (fr) 1997-10-22
EP0801962A3 EP0801962A3 (fr) 1999-01-07

Family

ID=7791602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97100906A Withdrawn EP0801962A3 (fr) 1996-04-18 1997-01-22 Installation d'extinction d'incendie

Country Status (2)

Country Link
EP (1) EP0801962A3 (fr)
DE (1) DE19615268A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2468364A1 (fr) 2010-12-22 2012-06-27 Minimax GmbH & Co. KG Installation d'extinction d'incendie

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10349760A1 (de) * 2003-10-24 2005-06-02 Hemsing Sachverständigenbüro für Brandschutz GmbH Löschdüsenträger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1155866A (fr) * 1956-03-29 1958-05-09 Kodak Pathe Dispositif de jonction de conduites et installation comportant ce dispositif
US4079786A (en) * 1976-06-01 1978-03-21 Moling Leroy I Fire extinguishing system
DE2905751C2 (de) * 1979-02-15 1986-04-17 Bauknecht Feuerschutz Gmbh, 7550 Rastatt Trenneinrichtung
AU633513B2 (en) * 1988-09-21 1993-02-04 Back-Flo Alarm Valve Co., Inc. Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
EP0464052A4 (en) * 1989-03-08 1992-04-22 Agf Manufacturing, Inc. Supply valve and arrangement for fire suppression water sprinkler system
JP2704798B2 (ja) * 1991-06-28 1998-01-26 千住スプリンクラー株式会社 住宅用スプリンクラー消火設備の自動点検装置
DE4440155C2 (de) * 1994-11-10 1997-05-15 Total Feuerschutz Gmbh Löschsystem

Non-Patent Citations (1)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2468364A1 (fr) 2010-12-22 2012-06-27 Minimax GmbH & Co. KG Installation d'extinction d'incendie

Also Published As

Publication number Publication date
EP0801962A3 (fr) 1999-01-07
DE19615268A1 (de) 1997-10-23

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