EP1727598A1 - Berstschlauch für feuerlöschsysteme - Google Patents
Berstschlauch für feuerlöschsystemeInfo
- Publication number
- EP1727598A1 EP1727598A1 EP05716330A EP05716330A EP1727598A1 EP 1727598 A1 EP1727598 A1 EP 1727598A1 EP 05716330 A EP05716330 A EP 05716330A EP 05716330 A EP05716330 A EP 05716330A EP 1727598 A1 EP1727598 A1 EP 1727598A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hose
- bursting
- elements
- wall
- hose according
- 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.)
- Granted
Links
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 7
- 230000003313 weakening effect Effects 0.000 claims abstract description 7
- 230000009172 bursting Effects 0.000 claims description 59
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 36
- 229920001169 thermoplastic Polymers 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 4
- -1 Polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
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
-
- 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
- A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links
Definitions
- the invention relates to a burst hose intended for use in fire extinguishing systems.
- Such bursting hoses made of thermoplastic materials can be installed along possible sources of fire and can either be used in direct-acting systems in which the extinguishing agent is passed directly through the bursting hose through the bursting point to the source of the fire, or in indirectly-acting systems in which the hose is used as Sensor hose is connected to a pressure sensor and filled with a compressed gas, whereby the pressure drop in the bursting hose that occurs when the hose bursts due to strong heat triggers the actual extinguishing process by supplying extinguishing agent from separately laid lines (e.g. DE 19 84 863 AI, DE 101 63 527 Cl). Sensor hoses can also be used to switch off electrical systems and to operate flaps or the like. be used.
- burst hoses are extruded from polyamides and have an outer diameter of 4 mm and an outer diameter of 6 mm, i.e. a wall thickness of 1 mm.
- the bursting behavior of such bursting hoses is largely determined by the hose material, the wall thickness, the level of the internal pressure and, of course, the external temperature.
- Burst hoses must have a high gas tightness in order to maintain the gas pressure for as long as possible so that the extinguishing system remains operational.
- the pressure drops due to leaks in the hose, the temperature at which the hose bursts increases. In practice it has been shown that temperatures of approximately 200 ° C. are sometimes required in order to cause the hose to burst. At low pressure and low temperatures around 100 to 120 ° C, the hose can melt, which makes the hose unusable and the extinguishing system ineffective.
- the bursting hose breaks as quickly as possible under the influence of internal pressure when there is an inadmissible heat effect, for example due to direct flame at the source of the fire, and thus the direct or indirect extinguishing process or any other control functions triggers.
- the invention proposes a burst hose intended for use in fire extinguishing systems, which is extrusion-molded from a thermoplastic material, is diffusion-tight and therefore pressure-holding even at internal gas pressures of up to about 32 bar, and is flexible for installation at potential sources of fire in narrow spaces and at a temperature within a set temperature heat occurring and depending on the applied gas pressure bursts with the release of an extinguishing gas, gas or fire extinguishing agent, whereby elements are arranged on or in the wall of the hose, which cause an accelerated weakening of the wall of the hose at the relevant point when the heat occurs ,
- the bursting hose is equipped with elements which improve the heat transfer to the thermoplastic material of the hose, i.e. Accelerate so that the hose quickly reaches the softening temperature of the thermoplastic material at the point of inadmissibly high temperature and bursts with the desired consequences under the pressure of the hose.
- the elements according to claim 2 consist of a material which, compared to the thermoplastic plastic of the wall of the hose, has a significantly higher thermal conductivity.
- Elements made of metal, in particular pure metals, are particularly suitable for this, as specified in claim 3.
- the thermal conductivity of metals is characterized by the physical value of the coefficient of thermal conductivity. Pure copper, a preferred material for use in accordance with the invention, already has one at 20 ° C
- the elements can be arranged on or in the wall of the hose in different ways.
- they can already be molded or molded onto the wall of the tube by coextrusion during the extrusion molding of the tube.
- the elements can also have a particle shape and the thermoplastic be added before its tube-forming extrusion, as indicated in claim 5.
- the elements can be threaded according to claim 6 on the outer wall of the finished tube at the desired locations and in the desired distribution on the outer wall of the finished tube and in close contact therewith.
- This alternative embodiment permits the application of the invention also in connection with commercially available bursting hoses.
- the elements can also be metal profiles which, after extrusion molding of the hose, are pressed warm into the outer circumferential surface of the hose and are thus fastened to the hose.
- the elements can be attached specifically to those sections of the bursting hose at which the possibility of high exposure temperatures is particularly likely.
- the elements optionally after adhesion-promoting pretreatment of the hose, can be printed, evaporated or glued onto the outer circumferential surface of the hose, which also offers the possibility of only attaching the elements to certain sections of the hose Attach hose.
- the hose in order to increase the resistance of the bursting hose to chemical and / or climatic influences, in a further advantageous embodiment the hose, as specified in claim 11, including the elements arranged thereon, are made of a thin protective cover made of a thermoplastic with high chemical resistance and low water permeability or absorption capacity be tightly enclosed. Polyethylene and polypropylene are well suited as wrapping material.
- the protective sheath can expediently be shrunk onto the bursting hose or formed by wrapping the hose, as stated in claims 12 and 13.
- the bursting hose can be designed in different sections of its length for different bursting temperatures or can be composed of sections which are designed for different bursting temperatures. Due to the above-mentioned different possibilities for the design and arrangement of the elements, which cause an accelerated weakening of the hose wall when critical heat occurs, a continuous hose can be designed to respond to different temperatures in defined areas of its length, so that the hose Depending on the extinguishing system, it can be connected to a compressed gas source or an extinguishing agent source and has the same internal pressure at every point. This training enables the bursting hose to be laid through zones or chambers with different temperature expectations.
- the bursting hose is composed of individual lengths which are equipped with elements for thermal wall weakening in different ways, the bursting hose is also under a uniform internal pressure and can equally be laid through zones or chambers with different temperature expectations.
- the composition points of the individual lengths are expediently located at a zone boundary or on chamber partitions.
- Hose when critical temperatures occur can be metal elements which can be firmly attached from the side to hoses or hose sections, even to hoses or hose sections that have already been laid, and which enclose the outer wall of the hose in close contact. These metal elements can according to claim 16 slotted washers or helically coiled Be metal strips that protrude like ribs from the wall of the hose to the outside after attachment to the hose.
- FIG. 7 is a perspective view of a burst hose section with a slotted washer attached to it
- Fig. 8 is a perspective view of a burst hose section with a coiled metal strip attached to it
- FIG. 9 shows a control cabinet subdivided into chambers or zones with a bursting hose laid in the chambers.
- the bursting hose and the elements arranged on or in its wall are shown considerably enlarged, while Fig. 9 is drawn on a reduced scale.
- the bursting hose has the customary diameters, namely 4 mm inside diameter and 6 mm outside diameter.
- other diameter ratios are also possible, for example an inner diameter of 6 mm and an outer diameter of 8 mm.
- the bursting hose is extrusion molded from polyamide 6 and, due to this material and its dimensional relationships an elastic-stiff consistency and could therefore also be called a pipe.
- burst hoses 1 and 1 'shown in FIGS. 1 and 2 five metal profiles 2 to 6 and 2' to 6 'of different cross-sectional shape are distributed on the outer circumferential surface 7 and 7', respectively, as wall-weakening elements when a critical temperature occurs arranged.
- the metal profiles 2 to 6 are either molded or molded on during the extrusion molding of the tube 1 or are pressed warm into the outer circumferential surface 7 of the tube 1 after the tube 1 has been extruded. 2, the metal profiles 2 'to 6' are glued onto the outer peripheral surface 7 '.
- the metal profiles 2 to 6 and 2 'to 6' are shown in Figures 1 and 2 only to illustrate the possibilities in different cross-sectional shape and different cross-sectional dimensions.
- uniform cross-sectional shapes and cross-sectional dimensions can also be selected.
- the circumferential distribution and number of metal profiles can also be varied according to the desired bursting behavior.
- the cross-sectional dimensions, cross-sectional shape and number of metal profiles can be selected within wide limits insofar as the desired flexibility of the bursting hose, which may be necessary for laying in tight radii of curvature, is not significantly impaired.
- the metal profiles 2 to 6 or 2 'to 6' are attached parallel to the central axis of the bursting hose 1 or 1 ', but a helical course on the outer peripheral surface 7 or 7' is also possible.
- the metal profiles 2 to 6 or 2 'to 6' can be attached to the hose in shorter or longer sections, whereby the bursting behavior can be influenced in sections even during the manufacture of the bursting hose.
- Metal structures that closely enclose the bursting hose can also be used as thermally wall-weakening elements. In the embodiment shown in FIG. 3, the thermally wall-weakening elements have a particle shape and are added to the thermoplastic before it forms a tube and are evenly distributed in the plastic melt.
- the particles 8 made of metal can have different sizes and shapes as shown. At the points at which particles 8 are located in the outer peripheral surface 7 ′′ of the bursting hose 1 ′′, that is to say at or near the surface, the heat transfer to the
- Hose wall and heat conduction in the hose wall are particularly good in the event of a critical temperature.
- the burst hoses 1, 1 ', 1' 'shown in FIGS. 4 to 6 differ from the burst hoses described with reference to FIGS. 1 to 3 in that the hoses, including the thermally wall-weakening elements arranged thereon or therein, each have a thin protection - Cover 9 are tightly enclosed in a thermoplastic material.
- the protective cover 9 should have a low chemical permeability or a high water resistance and should protect the hose against mechanical, climatic and chemical attacks.
- the only thin protective sleeve 9, which is preferably made of PE or PP, is attached by shrinking or helically wrapping the hose, which does not significantly reduce the desired rapid heat transfer to the bursting hose when critical temperatures occur.
- thermally wall-weakening elements need not be arranged fixedly on the bursting hose or integrated therein.
- the elements can also be plugged or threaded onto the outer wall of the finished hose and in close contact with it.
- Fig. 7 an element in the form of an annular metal plate 10 is shown, which on the tube 11 in the axial direction can be pushed on, or if the annular metal plate 10 has a slot 12 as drawn, can also be plugged onto the tube 11 by temporary and preferably elastic bending from the side.
- the metal plate 10 or a plurality of such metal plates have been attached to the desired locations on the tube 11 to be laid or to be laid, the metal plate or ribs protrude from the tube 11 and expose to the surrounding atmosphere a considerable area, which in the case the occurrence of a critical temperature for a rapid heat transfer initially to the metal plate or plates and by heat conduction in the metal plate or plates to the hose wall.
- the metal platelets can have any geometrical outer contour shape, ie the exposed surfaces of such metal platelets can be varied in shape and size depending on the location and the expected critical temperature.
- a variant of a metal plate in the form of a helically coiled metal strip 13 is shown, which can be bent elastically, therefore can also be plugged onto the hose 11 from the side and, after springing back into its starting position with its coiled inner edge surface, the hose 11 closely encloses.
- the thermally wall-weakening element projects like a rib from the hose 11.
- the metal strip 13, a plurality of which can be arranged on the hose, should enclose the hose at least with one full turn. In the example shown there are 1 1/4 turns.
- the invention enables bursting hoses that have a thermally different bursting behavior.
- the bursting hose can therefore be designed in sections of its length for different bursting temperatures or can be composed of sections of length that are suitable for different bursting temperatures. are designed. Such an arrangement is shown in FIG. 9 using a direct-acting extinguishing system.
- a bursting hose composed of three longitudinal sections 21, 22, 23 is connected to a pressurized extinguishing agent unit 20 located outside the control cabinet 14, which in the example shown extends through the three chambers 15, 16, 17 in multiple S-shaped turns.
- Pressure-tight assembly points 24 and 25 for the longitudinal sections 21, 22, 23 are located on the dividing walls 18, 19.
- the entire burst hose is under the uniform internal pressure of the extinguishing agent unit 20 and ends with a pressure-tight closure 26 in the last chamber 17.
- a burst hose is proposed in different variants, which is intended for use in direct but also indirect fire extinguishing systems and systems.
- the pressure-maintaining hose which is extrusion-molded from a thermoplastic, is flexible for laying.
- elements are arranged which, when a critical heat occurs, for example when a fire develops, cause the hose wall to weaken rapidly due to rapid heat transfer to the hose wall and thus quickly cause the hose to burst and an extinguishing agent to escape lead from the bursting point with direct fire extinguishing systems or to pressure loss in the hose with indirect fire extinguishing systems.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410014831 DE102004014831B4 (de) | 2004-03-24 | 2004-03-24 | Berstschlauch für Feuerlöschsysteme |
| PCT/EP2005/003104 WO2005092446A1 (de) | 2004-03-24 | 2005-03-23 | Berstschlauch für feuerlöschsysteme |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1727598A1 true EP1727598A1 (de) | 2006-12-06 |
| EP1727598B1 EP1727598B1 (de) | 2017-02-22 |
Family
ID=34962092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05716330.5A Expired - Lifetime EP1727598B1 (de) | 2004-03-24 | 2005-03-23 | Berstschlauch für feuerlöschsysteme |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1727598B1 (de) |
| DE (1) | DE102004014831B4 (de) |
| WO (1) | WO2005092446A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632313A (zh) * | 2020-06-19 | 2020-09-08 | 杭州巴倍齐科技有限公司 | 一种自动灭火装置 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014106844A1 (de) * | 2014-05-15 | 2015-11-19 | Udo Schröer | Leitungselement zum Austausch thermischer Energie mit der Umgebung |
| US20150330534A1 (en) * | 2014-05-19 | 2015-11-19 | Thercom Holdings, Llc | Bundled pipe and method of manufacture |
| FR3051068B1 (fr) * | 2016-05-04 | 2018-04-20 | Sncf Mobilites | Systeme et methode de detection d'un incendie dans un vehicule ferroviaire |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1087989A (en) * | 1912-01-27 | 1914-02-24 | Francis Cook Simson | Fire-extinguishing means. |
| GB1357010A (en) * | 1971-05-03 | 1974-06-19 | Chubb Fire Security Ltd | Fire-extinguishing apparatus |
| GB8926849D0 (en) * | 1989-11-28 | 1990-01-17 | Melton David L | Fire extinguisher |
| GB9026894D0 (en) * | 1990-12-11 | 1991-01-30 | Melton David L | Damage sensing apparatus |
| CA2255979A1 (en) * | 1996-05-22 | 1997-11-27 | Siemens Aktiengesellschaft | Means and method for extinguishing a fire in at least one cable duct |
| EP0978297A3 (de) * | 1998-08-05 | 2003-05-14 | Ceodeux-Fire Extinguisher Valves Technology S.A. | Feuerlöschvorrichtung mit schmelzbarer Feuerlöschleitung |
| DE19840863A1 (de) | 1998-08-31 | 2000-03-09 | Feuerschutz G Knopf Gmbh | Sprinklerbaugruppe |
| DE10163527C1 (de) | 2001-12-21 | 2003-08-21 | Siemens Ag | Feuerlöschvorrichtung |
| DE10224505A1 (de) | 2002-05-31 | 2003-12-11 | Josef Steidle | Feuerlöschsystem |
-
2004
- 2004-03-24 DE DE200410014831 patent/DE102004014831B4/de not_active Expired - Fee Related
-
2005
- 2005-03-23 EP EP05716330.5A patent/EP1727598B1/de not_active Expired - Lifetime
- 2005-03-23 WO PCT/EP2005/003104 patent/WO2005092446A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005092446A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632313A (zh) * | 2020-06-19 | 2020-09-08 | 杭州巴倍齐科技有限公司 | 一种自动灭火装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004014831A1 (de) | 2005-10-13 |
| DE102004014831B4 (de) | 2015-02-12 |
| EP1727598B1 (de) | 2017-02-22 |
| WO2005092446A1 (de) | 2005-10-06 |
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