EP0766581A1 - Löschanlage mit wenigstens zwei sprühköpfen - Google Patents
Löschanlage mit wenigstens zwei sprühköpfenInfo
- Publication number
- EP0766581A1 EP0766581A1 EP95920700A EP95920700A EP0766581A1 EP 0766581 A1 EP0766581 A1 EP 0766581A1 EP 95920700 A EP95920700 A EP 95920700A EP 95920700 A EP95920700 A EP 95920700A EP 0766581 A1 EP0766581 A1 EP 0766581A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control
- piston
- control piston
- spray head
- line
- 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
Classifications
-
- 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
Definitions
- the invention relates to an extinguishing system with at least two spray heads, each with a pressurized water connection, with a distribution chamber, from the distribution channels to spray nozzles, and with a pressure water passage from the pressurized water connection to the distributor chamber, spring-loaded and via at least one control device controllable control pistons , de can be acted upon on both sides via two cylinder chambers, of which the cylinder chamber for piston loading in the opening direction is connected on the one hand to the pressurized water connection and on the other hand via a throttle line in the control piston to the other cylinder chamber
- control piston In known spray heads (WO 93/10861), the control piston is supported on a glass break safety device as a control device, against which it is pressed with the aid of a loading spring.
- the control piston In order to avoid overloading the glass breakage protection due to the spring load and the pressure water acting on the control piston in the same direction, the control piston can be acted upon on both sides via two cylinder chambers, of which the cylinder chamber for piston loading in the opening direction not only connects to the pressurized water connection, but also to the other cylinder chamber stands, namely via a throttle line in the control piston, so that in the closed position of the control piston via the throttle line, a pressure equalization in the two cylinder chambers.
- control piston is thus canceled, which is therefore only pressed by the spring in the opening direction against the glass break safety device. If the travel of the control piston is released due to a break in the glass break safety device, the load spring of the control piston initiates its opening movement, which is then quickly opened by the pressurized water flowing from the pressurized water connection into the distribution chamber due to the larger piston area in this area.
- a disadvantage of these known spray heads is that control of the spray head is one Destruction of the glass breakage protection is mandatory and therefore cannot be initiated by bypassing the glass breakage protection via other control devices.
- the glass breakage protection must be provided on the spray head itself and cannot be arranged independently of the spray head at locations that are often more convenient for fire monitoring and at a distance from the spray head.
- the distribution chambers of known spray heads are connected to one another by pressure lines, so that these distribution chambers are supplied with pressurized water by the spray head, bypassing the control piston. whose glass break protection was triggered.
- a disadvantage of such a supply of pressurized water to the adjacent spray heads is that the spray heads have to be connected in a complex manner to additional pressure lines.
- the invention is therefore based on the object of improving an extinguishing system with at least two spray heads of the type described at the outset with simple design means such that simple control of at least one spray head from another spray head is possible.
- the invention achieves the stated object in that the spray heads have an emptying line for the cylinder space for piston loading in the closing direction, which can be opened via the control device, and a control piston which is spring-loaded in the closing direction, and in that at least the control piston of the one spray head has a depending on the position of the control plunger of the other spray head can be actuated control line.
- the respective spray head can be actuated via various control devices, because only this emptying line has to be opened in order to ensure a pressure reduction in the associated cylinder chamber with the result that the control piston over the pressure water exposure on the opposite side is adjusted in the opening direction due to the pressure drop in the throttle cable. Since when the drain line is closed, an equal but opposite pressure builds up on the control piston in the two cylinder chambers and therefore there is a risk of unintentional adjustment of the control piston, which is not supported by a control device, in the opening direction, the biasing spring of the control piston must act in the closing direction and an opening movement of the control piston with the drain line closed.
- the opening of the drain line does not require an arrangement of the control device for actuating the spray head itself, so that it becomes possible to provide a fire alarm, for example a glass breakage device independently of the attachment of the spray head, without endangering proper operation of the spray head.
- the actuation of the spray head can also be initiated by two or more control devices, which only have to open an emptying line.
- a versatile control of an extinguishing system equipped with such spray heads is possible because, for example, several spray heads can also be controlled via a control device.
- the drain line of the spray head to be controlled can be opened via a control device, for example a valve.
- the control line required for the control of this control device can be designed as an electrical control signal line which is actuated via a switch which can be actuated by the control piston of the controlling spray head when the control valve for the drain line of the controlled spray head z.
- B. consists of an electromagnetic valve.
- the control line can also be formed by a hydraulic line for actuating a valve adjustable via a piston, whereby an application via the distribution chamber of the controlling spray head is recommended.
- control piston of at least one spray head has an additional piston surface for a piston action in the opening direction and that the associated cylinder chamber is connected to a hydraulic control line via which the control piston opens against the force of its load spring becomes.
- This control line can in turn be connected to the distribution chambers of adjacent spray heads, so that when a spray head is actuated, the correspondingly connected adjacent spray heads are also actuated, but with their own pressurized water supply. It is therefore only necessary to lay control lines and no pressurized water supply lines, which considerably simplifies the installation work for these extinguishing systems.
- control line can be provided with a suction valve which, when the piston is adjusted, causes water or air to be sucked into the area that increases with the piston adjustment Cylinder space allowed.
- the spray system shown has two spray heads 1 a and 1 b, which are identical to one another.
- Each of these spray heads 1a and 1b is provided with a pressure water connection 2 and a distribution chamber 3, which is connected to the pressure water connection 2 via a cylinder bore 4 which passes through the distribution chamber 3 and on the side remote from the pressure water connection 2 in an enlarged cylinder space 5 opens into this cylinder bore 4, a control piston 6 is inserted, which at its end facing the pressurized water connection 2 over- Flow channels 7 forms, which allow a pressurized water passage from pressurized water connection 2 to the distribution chamber 3 when the control piston 6 is stepped out of the marked closing division into an open position.
- the pressurized water can then flow out of the distributor chamber via distributor channels 8 to spray nozzles 9.
- the pressure connection 2 forms for the control piston 6 a cylinder chamber 10 to act upon the piston in the opening direction.
- This cylinder chamber 10 is connected to the opposite cylinder chamber 5 through a line 11 passing through the control piston 6, the throttle effect being determined by a corresponding throttle 1.
- About the throttle line 11 thus results in a closed control piston 6, a pressure equalization in the cylinder chambers 10 and 5, so that only the closing force of the loading spring 13 acts on the control piston 6 outside di, that is on a screw-through base 14 penetrated by the control piston 6 for the cylinder space 5 supports. So that the control piston 6 can be moved from the drawn closed position into an open position which enables the passage from the pressurized water connection 2 to the distribution chamber 3, it is necessary to reduce the pressure in the cylinder chamber 5.
- At least one drain line 15 is provided, which can be opened by a control device 16. If a de provided drain lines 15 via the associated control device 16 opens, the pressure in the cylinder space 5 drops, which is connected with an axial adjustment of the control piston 6 against the force of the load spring 13 due to the fact that it is now subjected to one side via the cylinder space 10. This clears the way for the pressurized water to the spray nozzles 9 from the pressurized water connection 2 via the distributor chamber 3 and the distributor channels 8.
- the control devices 16 can be constructed differently. According to the exemplary embodiment shown, in addition to a glass break safety device 18 held in a housing 17, an electromagnetically actuable control valve 19 is provided which, like the glass break safety device 18, blocks the associated drain line 15 as long as the control valve 19 is not opened or the glass break safety device 18 does not break, which breaks Opening the control piston 6 in the manner described entails due to its pressurized water. To ensure proper radio tion of the respective spray head 1a, 1b to check, the control valve 19 can also be opened by hand.
- the control piston 6 can be provided with an additional piston surface 20 in a cylinder space 21, which is connected to a control line 22. Since the control piston 6 can be acted upon in the opening direction via this piston surface 20, the spray head can also be actuated via the control line 22 if the application pressure applied via the control line permits a piston displacement against the loading spring 13 because pressure medium compensation takes place via the throttle line 11 between the cylinder rooms 5 and 10 results.
- This hydraulic control line 22 can be connected, for example, to the distribution chamber 3 of the adjacent spray head 1b in order to ensure that the connected spray head 1 is actuated when this adjacent spray head 1b responds.
- the control line provided for this purpose in the spray heads 1a and 1b and originating from the distribution chamber 3 is designated 23 in the exemplary embodiment. If the control lines 23 and 22 are not used, their connections can be closed by plugs.
- the cylinder space 21 would prevent an adjustment of the control piston 6 if no after-flow of the pressure medium or ventilation is provided.
- a Nachsaugventii 24 is connected to the control line 22, via which the cylinder space 20 is vented if necessary. Since this Nachsaugventii 24 acts as a check valve, the piston adjustment via the control line 22 is not impaired by this Nachsaugventii.
- the solenoid valve 16 could also be controlled via an electrical signal line, which is actuated via a switch which can be actuated by the control piston 6 of the spray head 1b, which in turn controls the control piston 6 of the spray head 1a as a function of the position of the control piston 6 of the spray head 1b allowed.
- the control line 23 can also be connected to such a control valve.
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)
- Nozzles (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1170/94 | 1994-06-13 | ||
| AT117094 | 1994-06-13 | ||
| PCT/AT1995/000116 WO1995034348A1 (de) | 1994-06-13 | 1995-06-13 | Löschanlage mit wenigstens zwei sprühköpfen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0766581A1 true EP0766581A1 (de) | 1997-04-09 |
| EP0766581B1 EP0766581B1 (de) | 1998-08-26 |
Family
ID=3508127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95920700A Expired - Lifetime EP0766581B1 (de) | 1994-06-13 | 1995-06-13 | Löschanlage mit wenigstens zwei sprühköpfen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0766581B1 (de) |
| AT (1) | ATE170085T1 (de) |
| DE (1) | DE59503362D1 (de) |
| DK (1) | DK0766581T3 (de) |
| WO (1) | WO1995034348A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19618092A1 (de) * | 1996-05-06 | 1997-11-13 | Total Feuerschutz Gmbh | Anregerelement |
| DE19618072A1 (de) * | 1996-05-06 | 1997-11-13 | Total Feuerschutz Gmbh | Feuerlöscheinrichtung für Kraftfahrzeuge, die in mehretagigen Parkhäusern abgestellt sind |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2104302C (en) * | 1991-02-28 | 2002-05-07 | Goran Sundholm | Spray-head for fighting fire |
| FI915669A0 (fi) * | 1991-11-26 | 1991-11-29 | Goeran Sundholm | Eldslaeckningsanordning. |
| FI915730A0 (fi) * | 1991-12-04 | 1991-12-04 | Goeran Sundholm | Eldslaeckningsanordning. |
-
1995
- 1995-06-13 DE DE59503362T patent/DE59503362D1/de not_active Expired - Fee Related
- 1995-06-13 AT AT95920700T patent/ATE170085T1/de not_active IP Right Cessation
- 1995-06-13 DK DK95920700T patent/DK0766581T3/da active
- 1995-06-13 WO PCT/AT1995/000116 patent/WO1995034348A1/de not_active Ceased
- 1995-06-13 EP EP95920700A patent/EP0766581B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9534348A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0766581B1 (de) | 1998-08-26 |
| WO1995034348A1 (de) | 1995-12-21 |
| DE59503362D1 (de) | 1998-10-01 |
| DK0766581T3 (da) | 1999-05-25 |
| ATE170085T1 (de) | 1998-09-15 |
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