ALARM VALVE STATION OF A FIRE EXTINGUISHING SYSTEM, AND FIRE EXTINGUISHING SYSTEM

Abstract

The invention relates to an alarm valve station (1), in particular a wet alarm valve station, of a fire extinguishing system (100), having an alarm valve (3) with an extinguishing fluid inlet (5) and an extinguishing fluid outlet (7), wherein the alarm valve (3) has a closing body that can be moved back and forth between a blocking state and a release state, wherein the fluid inlet chamber and the fluid outlet chamber are separated from one another in the blocking state and communicate with one another fluidically in the release state, an alarm triggering device (9) for triggering a fire alarm, which is connected with the alarm valve (3), and a delay container (11a, 11b) in order to delay triggering of the fire alarm, wherein the alarm valve (3) is fluidically connected with a fluid inlet (13) of the delay container, and a fluid outlet (15a-15c) of the delay container (11a, 11b) is fluidically connected with the alarm triggering device (9).

The invention proposes that the delay container (11a, 11b) have several fluid inlets (13) and/or several fluid outlets (15a-15c).

Claims

1. An alarm valve station, in particular a wet alarm valve station, of a fire extinguishing system, having an alarm valve with an extinguishing fluid inlet and an extinguishing fluid outlet, wherein the alarm valve has a closing body that can be moved back and forth between a blocking state and a release state, wherein the fluid inlet chamber and the fluid outlet chamber are separated from one another in the blocking state and communicate with one another fluidically in the release state, an alarm triggering device for triggering a fire alarm, which is connected with the alarm valve, and a delay container in order to delay triggering of the fire alarm, wherein the alarm valve is fluidically connected with a fluid inlet of the delay container, and a fluid outlet of the delay container is fluidically connected with the alarm triggering device, wherein the delay container has several fluid inlets and/or several fluid outlets.

2. The alarm valve station according to claim 1, wherein one fluid outlet or several or all of the several fluid outlets of the delay container are connected with one or several respective alarm triggering devices.

3. The alarm valve station according to claim 1, wherein several fluid outlets are arranged on a first side of the delay container, and at least one fluid inlet is arranged on a second, opposing side of the delay container.

4. The alarm valve station according to claim 1, wherein the at least one fluid inlet on the second side of the delay container is not aligned flush with any of the several fluid outlets on the first side of the delay container.

5. The alarm valve station according to claim 1, wherein the delay container has a longitudinal axis that extends from the first side to the second side of the delay container, and a fluid inlet, several or all fluid inlets, and/or a fluid outlet, several or all fluid outlets of the delay container are spaced apart from the longitudinal axis.

6. The alarm valve station according to claim 1, wherein the delay container has a multipart design.

7. The alarm valve station according to claim 1, wherein the delay container has a first container part and a second container part that can be detached from the first container part.

8. The alarm valve station according to claim 7, wherein the first container part and second container part each have a flange section, wherein the flange sections of the first container part and second container part are designed to be mutually connected.

9. The alarm valve station according to claim 7, wherein the first container part and second container part are identical.

10. The alarm valve station according to claim 7, wherein the first container part and second container part can be connected with each other in various rotational angle positions.

11. The alarm valve station according to claim 7, wherein a gasket element is arranged between the first container part and second container part, which protrudes into the interior of the delay container.

12. The alarm valve station according to claim 11, wherein the fluid inlet or fluid inlets of the delay container each have a central axis, wherein the gasket element protrudes into the interior of the delay container in such a way that the central axis of the one fluid inlet or several fluid inlets intersects the gasket element.

13. The alarm valve station according to claim 1, wherein the fluid inlet or fluid inlets of the delay container is/are aligned flush with one or several fluid outlets of the delay container.

14. The alarm valve station according to claim 1, wherein a fluid outlet of the delay container is fluidically connected with an evacuation device, which is set up to automatically empty the delay container.

15. A fire extinguishing system, having an alarm valve station according to claim 1, an extinguishing fluid supply that is fluidically connected with the extinguishing fluid inlet of the alarm valve, and a sprinkler arrangement that is fluidically connected with the extinguishing fluid outlet of the alarm valve.

Description

[0035] Preferred embodiments of the invention will be explained and described in more detail below with reference to the attached drawings. Shown on:

[0036] FIG. 1 is a perspective view of an exemplary embodiment of a delay container of the alarm valve station according to the invention;

[0037] FIG. 2 is a sectional view of the delay container from FIG. 1;

[0038] FIG. 3 is another sectional view of the delay container from FIG. 1;

[0039] FIG. 4 is a side view of another exemplary embodiment of a delay container of the alarm valve station according to the invention;

[0040] FIG. 5 is a side view of an exemplary embodiment of the alarm valve station according to the invention;

[0041] FIG. 6 is a schematic view of an exemplary embodiment of the fire extinguishing system according to the invention;

[0042] FIG. 7 is a schematic view of another exemplary embodiment of the fire extinguishing system according to the invention;

[0043] FIG. 8 is a schematic view of another exemplary embodiment of the fire extinguishing system according to the invention;

[0044] FIG. 9 is a top view of an exemplary embodiment of the alarm valve station according to the invention.

[0045] On FIG. 1 and FIG. 2, the delay container 11a, 11b has a fluid inlet 13 and three fluid outlets 15a-15c.

[0046] Two fluid outlets 15b, 15c are arranged on a first side of the delay container 11a, 11b, while a fluid inlet 13 and a fluid outlet 15a in addition to the fluid inlet 13 are arranged on a second, opposing side of the delay container 11a, 11b.

[0047] The delay container 11a, 11b has a longitudinal axis 17, which extends from the first side to the second side of the delay container 11a, 11b. The fluid inlet 13 and fluid outlets 15a-15c of the delay container 11a, 11b are spaced apart from the longitudinal axis 17.

[0048] The delay container 11a, 11b has multiple parts, and sections thereof are designed rotationally symmetrical around a central axis, wherein the longitudinal axis 17 corresponds to the central axis. The first container part 11a and the second container part 11b that can be reversibly and nondestructively detached from the first container part 11a are connected with each other via flange sections 19a, 19b. The first container part 11a and second container part 11b are identical.

[0049] The first container part 11a of the delay container 11a, 11b has two fluid outlets 15b, 15c. The second container part 11b of the delay container 11a, 11b has a fluid inlet 13 and a fluid outlet 15a in addition to the fluid inlet 13.

[0050] The first container part 11a and second container part 11b can be connected with each other at eight different rotational angle positions. The first container part 11a can be rotated around the longitudinal axis 17 in the rotational directions 12a. The second container part 11b can be rotated around the longitudinal axis in the rotational directions 12b.

[0051] The first container part 11a has eight boreholes 20a-20e in the flange section 19a, while the second container part 11b also has eight boreholes 22a-22e in the flange section 19b.

[0052] As evident from FIG. 3, a gasket element 21 can be arranged between the first container part 11a and second container part 11b, which protrudes into the interior 23 of the delay container 11a, 11b. The fluid inlet 13 of the delay container 11a, 11b has a central axis 25, wherein the gasket element 21 protrudes into the interior space 23 of the delay container 11a, 11b in such a way that the central axis 25 of the fluid inlet 13 intersects the gasket element 21. The fluid inlet 13 of the delay container 11a, 11b is aligned flush with the fluid outlet 15b of the delay container 11a, 11b. The gasket element 21 serves as an impact element for the fluid entering into the delay container 11a, 11b. The gasket element 21 consists of an elastic sealing lip, which extends into the interior 23 of the delay container 11a, 11b.

[0053] The fluid inlet 13 of the delay container 11a, 11b has a threaded section 14. The fluid outlets 15a-15c of the delay container 11a, 11b also each have a threaded section 16a-16c.

[0054] According to FIG. 4, the first container part 11a and second container part 11b of the delay container 11a, 11b are connected with each other by eight screw fittings (24a-24e). The fluid outlets 15b, 15c of the delay container 11a, 11b lying one behind the other on FIG. 4 are each connected with alarm triggering devices, which have a pressure sensor 27. The pressure sensor 27 is designed as a pressure switch, and set up to detect a pressure change and convert it into an electrical signal.

[0055] FIG. 5 shows an alarm valve station 1 with an alarm valve 3, an alarm triggering device 9 and a delay container 11a, 11b. The alarm valve 3 consists of an extinguishing fluid inlet 5 and an extinguishing fluid outlet 7, wherein the alarm valve 3 is set up to detect the extinguishing fluid flow between the extinguishing fluid inlet 5 and extinguishing fluid outlet 7. The extinguishing fluid inlet 5 of the alarm valve 3 is set up to be fluidically connected with an extinguishing fluid supply 101 (FIG. 6). The extinguishing fluid outlet 7 of the alarm valve 3 is set up to be fluidically connected with a sprinkler arrangement 103 (FIG. 6). The alarm valve 3 is set up to release the inflow of extinguishing fluid into the alarm line upon opening one or several sprinklers of the sprinkler arrangement 103.

[0056] The alarm triggering device 9 is designed to trigger a fire alarm, and connected with the alarm valve 3. In order to trigger a fire alarm, the alarm triggering device 9 has two pressure sensors 27 designed as a pressure switch, wherein the pressure sensors are each connected with a fluid outlet 15a, 15b of the delay container 11a, 11b. The delay container 11a, 11b serves to delay the triggering of the fire alarm. In the event of a fire, the alarm valve 3 is fluidically connected with the fluid inlet 13 of the delay container 11a, 11b.

[0057] The first pressure sensor 27 is connected with a fire detector and/or extinguishing control panel in a signal-conducting manner. The second pressure sensor 27 is connected with an electrically operated alarm system in a signal-conducting manner. The electrically operated alarm system consists of an alarm horn (not shown).

[0058] The fluid inlet 13 of the delay container 11a, 11b is aligned flush with the fluid outlet 15b of the delay container 11a, 11b.

[0059] The fluid inlet 13 of the delay container 11a, 11b also serves as a fluid outlet, and is fluidically connected with an evacuation device 33. The evacuation device 33 is set up to automatically empty the delay container 11a, 11b.

[0060] A dirt trap 45 is arranged between the alarm valve 3 and delay container 11a, 11b.

[0061] In order to manually release the extinguishing fluid flow, the alarm valve station 1 has a shutoff unit 35, by means of which the extinguishing fluid flow can be released and blocked.

[0062] The extinguishing fluid inlet 5 and extinguishing fluid outlet 7 of the alarm valve 3 are connected with each other via a bypass line. The intermediate line has two stopcocks 39a, 39b, two vent valves 41a, 41b and two manometers 43a, 43b.

[0063] FIG. 6 shows a fire extinguishing system 100 with an alarm valve station 1, an extinguishing fluid supply 101, which is fluidically connected with the extinguishing fluid inlet 5 of the alarm valve 3, and a sprinkler arrangement 103, which is fluidically connected with the extinguishing fluid outlet 7 of the alarm valve. The extinguishing fluid inlet 5 and extinguishing fluid outlet 7 of the alarm valve 3 are also connected with each other via a bypass line. The bypass line has two stopcocks 39a, 39b, two vent valves 41a, 41b, two manometers 43a, 43b and a check valve 47.

[0064] The alarm valve has a closing body 4, which can be moved back and forth between a blocking state and a release state, wherein the fluid inlet chamber and fluid outlet chamber are separated from each other in the blocking state, and communicate with each other fluidically in the release state. FIG. 6 shows the blocking state.

[0065] A dirt trap 45, a shutoff valve 32 and a throttle 18 are arranged between the alarm valve 3 and delay container 11a, 11b. The delay container 11a, 11b has a multipart design, with a first container part 11a and a second container part 11b.

[0066] The first container part 11a of the delay container 11a, 11b has two fluid outlets 15a, 15b. The second container part 11b of the delay container 11a, 11b has one fluid inlet 13. The fluid inlet 13 simultaneously serves as a fluid outlet, and is fluidically connected with the evacuation device 33.

[0067] The two fluid outlets 15a, 15b are each fluidically connected with a pressure sensor 27. The two pressure sensors 27 are designed as pressure switches, and connected with a fire detector and/or extinguishing control panel 28 in a signal-conducting manner. The fire detector and/or extinguishing control panel 28 is connected with two electrically operated alarm systems 29 in a signal-conducting manner. The first electrically operated alarm system 29 is designed as an alarm horn. The second electrically operated alarm system 29 is designed as an optical warning unit. The pressure sensors 27, fire detector and/or extinguishing control panel 28 and electrically operated alarm systems 29 are part of the alarm triggering device 9,

[0068] FIG. 7 also shows a fire extinguishing system 100 with a hydraulic delay container 11a, 11b, wherein the delay container 11a, 11b has a fluid inlet 13 and three fluid outlets 15a-15c. The fluid outlet 15a is closed, and has no function. The fluid outlet 15b is fluidically connected with a pressure sensor 27 designed as a pressure switch. The fluid outlet 15c is fluidically connected with a hydraulically operated alarm system 31. The hydraulically operated alarm system 31 consists of a hydraulic alarm bell. The alarm bell serves to sound an alarm in the immediate environment. Otherwise, the structural design of the fire extinguishing system 100 corresponds to the structural design of the fire extinguishing system 100 from FIG. 6.

[0069] FIG. 8 also shows a fire extinguishing system 100 with a hydraulic delay container 11a, 11b, wherein the delay container 11a, 11b has a fluid inlet 13 and three fluid outlets 15a-15c. The fluid outlet 15a is fluidically connected with an evacuation device 33. The fluid outlet 15b is fluidically connected with a hydraulically operated alarm system 31 by way of a shutoff valve 32. The hydraulically operated alarm system 31 consists of a hydraulic alarm bell. The fluid outlet 15c is fluidically connected with a pressure sensor 27 designed as a pressure switch. The pressure sensor 27 is in turn connected with a fire detector and/or extinguishing control panel 28 in a signal-conducting manner. Otherwise, the structural design of the fire extinguishing system 100 corresponds to the structural design of the fire extinguishing system 100 from FIG. 6 and FIG. 7.

[0070] The top view on FIG. 9 shows an alarm valve station 1 according to the invention, which is arranged in the area of two wall sections 105a, 105b. The alarm valve 3 is fluidically connected with the fluid inlet 13 of the delay container 11a, 11b via a dirt trap 45 and shutoff valve 32. The fluid outlet 15a of the delay container 11a, 11b is fluidically connected with a hydraulically operated alarm system 31, which is designed as a hydraulic alarm bell. The fluid outlet 15b is fluidically connected with the pressure sensor 27. The pressure sensor 27 is connected with the fire detector and/or extinguishing control panel 28 in a signal-conducting manner. The lateral arrangement of the fluid inlet 13 and fluid outlets 15a, 15b makes it possible to lay the line sections connected with the fluid inlet 13 and fluid outlet 15b in directly proximity to the wall section 105a. The dashed line denotes that routing the lines in such a space-saving manner would not be possible with a known delay container. Using a delay container with a fluid inlet/outlet offset from the longitudinal axis or middle of the container enables an eccentric arrangement of the container relative to the line sections. In the arrangement shown, the longitudinal axis of the delay container is offset toward the left relative to the line sections, which are connected to the fluid inlet 13 and fluid outlet 15b. As a result of this offset arrangement, the alarm valve station takes up less area and width than would a concentric arrangement of the delay container (dashed line).

REFERENCE LIST

[0071] 1 Alarm valve station [0072] 3 Alarm valve [0073] 4 Closing body [0074] 5 Extinguishing fluid inlet [0075] 5 Extinguishing fluid outlet [0076] 7 Alarm triggering device [0077] 11a, 11b Delay container [0078] 12a, 12b Rotational directions of the container parts [0079] 13 Fluid inlet of the delay container [0080] 14 Threaded section [0081] 15a-15c Fluid outlets of the delay container [0082] 16a-16c Threaded sections [0083] 17 Longitudinal axis [0084] 18 Throttle [0085] 19a, 19b Flange sections [0086] 20a-20e Boreholes in the first flange section [0087] 21 Gasket element [0088] 22a-22e Boreholes in the second flange section [0089] 23 Interior of the delay container [0090] 24a-24e Screw fittings [0091] 25 Central axis [0092] 26a-26c Central axes [0093] 27 Pressure sensor [0094] 28 Fire detector and/or extinguishing control panel [0095] 29 Electrically operated alarm system [0096] 31 Hydraulically operated alarm system [0097] 32 Shutoff valve [0098] 33 Evacuation device [0099] 35 Shutoff unit [0100] 39a, 39b Stopcocks [0101] 41a, 41b Vent valves [0102] 43a, 43b Manometer [0103] 45 Dirt trap [0104] 47 Check valve [0105] 100 Fire extinguishing system [0106] 101 Extinguishing fluid supply [0107] 103 Sprinkler arrangement [0108] 105a, 105b Wall sections