EP0374818B1 - Sprinkleranlage für Tiefkühlräume - Google Patents

Sprinkleranlage für Tiefkühlräume Download PDF

Info

Publication number
EP0374818B1
EP0374818B1 EP89123430A EP89123430A EP0374818B1 EP 0374818 B1 EP0374818 B1 EP 0374818B1 EP 89123430 A EP89123430 A EP 89123430A EP 89123430 A EP89123430 A EP 89123430A EP 0374818 B1 EP0374818 B1 EP 0374818B1
Authority
EP
European Patent Office
Prior art keywords
sprinkler system
sprinklers
distribution pipes
sprinkler
pipes
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.)
Expired - Lifetime
Application number
EP89123430A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0374818A1 (de
Inventor
Holger Dipl.-Ing. Gottschalk
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.)
Gottschalk Feuerschutzanlagen & Co GmbH
Original Assignee
Gottschalk Feuerschutzanlagen & Co 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 Gottschalk Feuerschutzanlagen & Co GmbH filed Critical Gottschalk Feuerschutzanlagen & Co GmbH
Publication of EP0374818A1 publication Critical patent/EP0374818A1/de
Application granted granted Critical
Publication of EP0374818B1 publication Critical patent/EP0374818B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/64—Pipe-line systems pressurised

Definitions

  • the invention relates to a sprinkler system for deep-freeze rooms as shelf protection or the like, consisting of a plurality of sprinklers which, in the operating state, are supplied with a predetermined volume flow of extinguishing water via pipes arranged in the deep-freeze room.
  • a sprinkler system for deep-freeze rooms as shelf protection or the like, consisting of a plurality of sprinklers which, in the operating state, are supplied with a predetermined volume flow of extinguishing water via pipes arranged in the deep-freeze room.
  • a sprinkler system is known from DE-A-2703004.
  • the systems are free of extinguishing water and filled with a sensor medium, e.g. compressed air at 3 bar, which escapes when the sprinkler is open and allows the extinguishing water to flow in.
  • a sensor medium e.g. compressed air at 3 bar
  • the sensor medium present in the system in the idle state must be largely dehumidified or most suitably completely dry, so that ice cannot accumulate in the pipelines or on the sprinkler opening mechanism in the idle state and the system is therefore inoperative in the idle state becomes.
  • the problem underlying the invention does not occur in the idle state, but in the operating state of the sprinkler system, i.e. after opening at least one sprinkler or if for any other reason the system is switched to the operating state and the extinguishing water flows into the system.
  • the object of the invention is therefore to provide a sprinkler system of the type defined above for deep-freeze rooms which nevertheless ensures the minimum time functionality of the system in the operating state without the use of commercially available insulating materials.
  • the diameters of the pipelines are larger, preferably several times larger, than is required for the mathematically predetermined volume flow of extinguishing water, and in that the sprinklers are designed as so-called dry sprinklers, in which the flow rate Shut-off valve lies essentially in the axial center of the pipelines and the feed lines to the sprinklers branched off from the pipelines are kept free from the sensor medium of the sprinkler system in the idle state of the system.
  • the pipeline cross section of the sprinkler system is deliberately to be built considerably larger than it would correspond to the mathematically predetermined pipe cross section of the system.
  • a pipe diameter calculated, for example, to 1-2 inches (25.4-50.8 mm) according to the previously customary calculation method should be several times larger and should be approximately 6 inches in the built system.
  • the teaching of the invention provides that the oversized pipes of the system are operated in combination with dry sprinklers, the essential features of which are set out in the characterizing part of claim 1.
  • the proposed sprinklers have the advantage that their flow shut-off valves are positioned approximately in the axial center of the pipelines, so that they lie in the region of the central flow cross section of the pipelines that remains longest from icing. Accordingly, the functionality in the operating state of the system is given for all sprinklers for a predictable minimum time.
  • the teaching of the invention is independent of whether there is flowing or standing water in the pipes of the system after switching on the operating state. It is also independent of the design of the pipeline network, which can optionally also be connected in a circuit with extinguishing water return lines, which can be arranged in or outside the freezer compartment.

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)
EP89123430A 1988-12-22 1989-12-19 Sprinkleranlage für Tiefkühlräume Expired - Lifetime EP0374818B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3843740A DE3843740C1 (enrdf_load_stackoverflow) 1988-12-22 1988-12-22
DE3843740 1988-12-22

Publications (2)

Publication Number Publication Date
EP0374818A1 EP0374818A1 (de) 1990-06-27
EP0374818B1 true EP0374818B1 (de) 1993-03-17

Family

ID=6370150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123430A Expired - Lifetime EP0374818B1 (de) 1988-12-22 1989-12-19 Sprinkleranlage für Tiefkühlräume

Country Status (3)

Country Link
EP (1) EP0374818B1 (enrdf_load_stackoverflow)
DE (2) DE3843740C1 (enrdf_load_stackoverflow)
ES (1) ES2040445T3 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29509072U1 (de) * 1995-06-01 1995-08-17 Minimax Gmbh, 23843 Bad Oldesloe Sprinkler-Trockenanlage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3834462A (en) * 1973-02-28 1974-09-10 Factory Mutual Res Corp Automatic fire protection system for low temperature environments
DE2440603C2 (de) * 1974-08-23 1982-08-05 Minimax Gmbh, 2060 Bad Oldesloe Selbsttätige Feuerlöschanlage mit Sprinklern, nach dem Trockensystem, für Räume mit Temperaturen im Gefrierbereich
DE2703004A1 (de) * 1977-01-26 1978-07-27 Klaus Muench Sprinkleranlage
CA1265972A (en) * 1985-07-18 1990-02-20 Alan George William Dry Dry sprinkler system

Also Published As

Publication number Publication date
ES2040445T3 (es) 1993-10-16
EP0374818A1 (de) 1990-06-27
DE3843740C1 (enrdf_load_stackoverflow) 1990-02-22
DE58903817D1 (de) 1993-04-22

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