CN208097169U - A kind of Combined type firefighting drencher and the tunnel fire proofing separating system being made from it - Google Patents

Abstract

The utility model discloses a kind of Combined type firefighting drenchers, including the nozzle body being connect using screw thread with fire protection pipeline, it is arranged in nozzle body side, and 2 window type water spray nozzles and 2 the first droop water spray nozzles that interval is laid, second droop water spray nozzle of nozzle body bottom center is set, inner flow passage in nozzle body is set, it is arranged in nozzle body, the first cavity being connected to inner flow passage for window type water spray nozzle and the first droop water spray nozzle, through the setting of the first cavity and the shunting body of tapered shape, and it is arranged in shunting body, for being connected to the second cavity of inner flow passage and the second droop water spray nozzle.The utility model additionally provides a kind of tunnel fire proofing separating system.The utility model has many advantages, such as that structure is simple, the water curtain thickness of injection is uniform, area coverage is wide, applied widely, heat-proof smoke-proof works well.There is very high practical value and promotional value in technical field of fire control.

Description

A combined fire water curtain sprinkler and a tunnel fire separation system composed of it

technical field

The utility model relates to the technical field of fire protection, in particular to a combined fire-fighting water curtain nozzle and a tunnel fire-proof separation system composed of the same.

Background technique

With the continuous improvement of social development and the continuous improvement of traffic conditions and engineering construction technology, traffic tunnels have developed rapidly and play an important role in transportation. Since the tunnel is a relatively closed space, and the terrain of the traffic tunnel is complex, the driving vehicle is affected by factors such as light and weather, and the probability of accidents in the tunnel is relatively high. Therefore, while controlling the speed of the driving vehicle, the traffic The tunnel itself also needs to meet fire protection, ventilation, lighting and other requirements.

Tunnel fires include tunnel ancillary room fires, tunnel equipment fires, and vehicle fires in tunnels. In order to prevent the spread of fires and ensure the safe evacuation of personnel. Especially in the case of large fires, traffic congestion and inaccessibility of fire engines, the fire must be contained in a certain area. Existing traffic tunnels generally adopt passive fire prevention measures such as spraying fireproof coatings and installing fireproof panels to improve the fire resistance of the tunnel structure. Fires are extinguished through automatic fire alarm systems, smoke prevention systems, fire hydrant systems, automatic sprinkler systems, and foam-water spraying. The system and other facilities improve the disaster prevention and mitigation capabilities of the tunnel, and set fire doors or fire shutter doors as fire separation in the pedestrian and vehicle cross passages between the two tunnels. However, there are no fire separation measures in the main tunnel (longitudinal direction) of the longitudinal traffic, so the fire smoke and heat can easily spread along the longitudinal direction of the tunnel, affecting the escape of personnel, and the fire may spread along the longitudinal direction of the tunnel. In order to ensure the escape conditions of tunnel personnel and avoid the further spread of fire, it is necessary to design a fire protection system that does not affect the passage of tunnel vehicles and can realize the fire separation of tunnels. This requires the application of water sprinkler or water curtain separation system. When using traditional open sprinkler or water curtain nozzle, there is a dead angle of spraying, and the formed water wall or water curtain cannot fully cover the cross section of the tunnel.

Therefore, it is necessary to design a water curtain nozzle with a wide coverage area, simple structure, and good heat and smoke insulation effects, and on this basis to form a tunnel water curtain separation system to meet the fire separation requirements.

Utility model content

In view of the above-mentioned problems, the purpose of this utility model is to provide a combined fire-fighting water curtain nozzle and a tunnel fire-proof partition system composed of it, which mainly solves the lack of fire-proof partition measures for the tunnel driving main tunnel in the prior art, and the traditional open sprinkler When spraying nozzles or water curtain nozzles, there are problems such as spraying dead angles, and the formed water wall or water curtain cannot fully cover the cross section of the tunnel.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A combined fire-fighting water curtain sprinkler head, comprising a sprinkler head body connected to a fire-fighting pipeline with threads, 2 window-type water curtain nozzles and 2 first drooping-type water curtain nozzles arranged at intervals on the side of the sprinkler body, set The second pendant water curtain nozzle at the center of the bottom of the sprinkler main body is arranged in the inner flow channel in the sprinkler main body, and is arranged in the sprinkler main body for the window type water curtain nozzle and the first pendant water curtain nozzle to be connected with the inner flow channel A connected first cavity, a cone-shaped sub-fluid that is arranged through the first cavity, and a second cavity that is arranged in the sub-fluid and is used to communicate with the inner flow channel and the second drooping water curtain nozzle; the window Type water curtain nozzle and the first drooping type water curtain nozzle are evenly arranged on the side of the shower head body, and the water curtain sprayed by the window type water curtain nozzle, the first drooping type water curtain nozzle and the second drooping type water curtain nozzle On the same plane; the bottom of the dividing fluid is fixedly connected with the sprinkler body and the top of the dividing fluid is arranged in the inner flow channel, and the fire-fighting water in the inner flow channel is divided through the second cavity.

Preferably, the window-type water curtain nozzle is one of a single-port type and a double-port type.

Further, the total flow rate of fire-fighting water sprayed by the window-type water curtain nozzle and the first pendant water curtain nozzle is four times that of the second pendant-type water curtain nozzle.

Furthermore, the water curtain spread angles of the first pendant water curtain nozzle, the window water curtain nozzle and the second pendant water curtain nozzle are all between 120° and 150°.

A tunnel fire separation system, including several combined fire-fighting water curtain nozzles installed on the top of the tunnel, fire branch pipes connected to the combined fire-fighting water curtain nozzles, water curtain system control valve group connected to the fire branch pipes, all connected to the water curtain The fire chief connected with the system control valve group and the fire alarm controller, the fire detector connected with the fire alarm controller and installed on the top of the tunnel, the main fire valve connected with the fire chief, the fire water pump connected with the main fire valve, and the The fire-fighting water pool connected to the fire-fighting water pump; the combined fire-fighting water curtain nozzles are arranged in at least 2 rows perpendicular to the longitudinal direction of the tunnel, and the combined fire-fighting water curtain nozzles in the same row are evenly arranged, and the combined fire-fighting water curtain nozzles in the same row The water curtain sprayed by the water curtain nozzle is perpendicular to the longitudinal direction of the tunnel.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model is cleverly equipped with a combined water curtain nozzle, and sprays fire-fighting water into a water curtain perpendicular to the longitudinal direction of the tunnel through the window type water curtain nozzle, the first drooping water curtain nozzle and the second drooping water curtain nozzle , and the water curtain can cover the position of the sprinkler and its surrounding area at 360° without dead angle. The combination of a small number of sprinklers can effectively and comprehensively cover the entire tunnel cross-section, providing protection for tunnel fire isolation. Wherein, the water curtain is sprayed left and right through the first pendant water curtain nozzle, the water curtain is sprayed downward by the second pendent water curtain nozzle, and the water curtain is sprayed upward by the single-port or double-port window-type water curtain nozzle. Since the spraying angles of the window type water curtain nozzle, the first pendant water curtain nozzle and the second pendent water curtain nozzle are all between 120° and 150°, any combined water curtain nozzle can be guaranteed to spray to form a continuous, seamless Clearance, 360° water curtain with no dead angle. In addition, the first cavity connecting the window type water curtain nozzle and the first drooping type water curtain nozzle and the second cavity composed of the sub-fluid are arranged in the main body of the sprinkler head, and the second cavity will discharge the fire-fighting water in the inner flow channel. The diversion ensures that the water volume and water pressure sprayed by the window type water curtain nozzle, the first pendant water curtain nozzle and the second pendent water curtain nozzle are equal, so that the thickness and distribution of the water curtain are more uniform and the combined water curtain is improved. Curtain nozzle fire separation effect.

(2) The utility model also provides a tunnel fire separation system composed of combined water curtain nozzles. in the longitudinal direction of the tunnel. The tunnel is divided into several areas through the combined water curtain nozzles distributed in rows, and fire detectors are installed in each area. The controller sends a signal to start the fire pump and the water curtain system control valve group at both ends of the section, and the combined water curtain nozzle forms a continuous and uniformly divided water curtain to control the fire in this area and prevent the fire from spreading. The utility model can effectively block the spread of fire and play an effective isolation role by setting a protective separation system. It can be said that the utility model has the advantages of simple structure, uniform thickness of sprayed water curtain, wide coverage area, wide application range, good heat and smoke insulation effect, etc., and has high practical value and popularization value in the field of fire protection technology.

Description of drawings

Figure 1 is a right view of the combined water curtain nozzle.

Figure 2 is a front view of the combined water curtain nozzle.

Fig. 3 is a schematic cross-sectional view of a combined water curtain nozzle.

Figure 4 is a bottom view of the combined water curtain nozzle.

Fig. 5 is a top view of the combined water curtain nozzle.

Figure 6 is a structural schematic diagram of the tunnel fire separation system.

In the above drawings, the names of components corresponding to the reference signs are as follows:

1-Nozzle body, 2-First pendant water curtain nozzle, 3-Window water curtain nozzle, 4-Second pendant water curtain nozzle, 5-Inner flow channel, 6-First cavity, 7-Split fluid , 8-second cavity, 11-combined fire water curtain nozzle, 12-water curtain system control valve group, 13-fire alarm controller, 14-fire detector, 15-fire supervisor, 16-fire main valve, 17-fire water pump, 18-fire water pool, 19-fire branch pipe.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and examples. The implementation of the utility model includes but not limited to the following examples.

Example 1

As shown in Figures 1 to 5, a combined fire-fighting water curtain nozzle in this embodiment can form a tunnel without dead ends to separate the fire-fighting water curtain, control the fire within a certain area, and effectively prevent the fire from spreading. Specifically, the combined fire-fighting water curtain nozzle includes a nozzle body 1 that is threaded and connected to a fire-fighting pipeline, two window-type water curtain nozzles 3 and two first The pendant water curtain nozzle 2, the second pendant water curtain nozzle 4 arranged in the center of the bottom of the nozzle main body 1, the inner flow channel 5 arranged in the nozzle main body 1, is arranged in the nozzle main body 1, and is used for the window type water curtain nozzle 3 and the first drooping water curtain nozzle 2 are all connected to the first cavity 6 of the inner flow channel 5, the first cavity 6 is set through the first cavity 6 and the taper-shaped sub-body 7, and the sub-body 7 is arranged in the sub-fluid 7 for It communicates with the inner runner 5 and the second cavity 8 of the second pendant water curtain nozzle 4 . The water curtain sprayed by the first pendant water curtain nozzle 2 and the second pendant water curtain nozzle 4 is on the same plane, and the water curtain sprayed by the window type water curtain nozzle 3 just makes the first pendent water curtain nozzle 2 and the second pendant The top of the water curtain sprayed by the type water curtain nozzle 4 is reliably blocked, because the volume of the nozzle main body 1 is small, the water sprayed by the window type water curtain nozzle 3, the first pendant water curtain nozzle 2 and the second pendant water curtain nozzle 4 The curtain can be regarded as the same plane, and the flow rate sprayed by the five nozzles is equal. In addition, the bottom of the sub-body 7 is fixedly connected to the nozzle body 1 and the top of the sub-body 7 is set in the inner flow channel 5, by matching the axial cross-sectional area of the inner flow channel 5 with the second cavity 8 where the fire water enters The ratio of the cross-sectional area realizes the diversion of the fire-fighting water flowing out of the inner flow channel 5, and ensures the fire-fighting water pressure and water volume sprayed by the first pendant water curtain nozzle 2, the window-type water curtain nozzle 3 and the second pendent water curtain nozzle 4 Both are equal. Not only that, the water curtain spread angles of the first pendant water curtain nozzle 2, the window type water curtain nozzle 3 and the second pendant water curtain nozzle 4 are all between 120° and 150°, because the volume of the shower head body is small , when the combined fire-fighting water curtain nozzle is used in the tunnel, the water curtain sprayed by the window type water curtain nozzle 3 and the first drooping water curtain nozzle 2 is infinitely close to the same plane, so the slight deviation of the water curtain can be ignored. In this embodiment, the window-type water curtain nozzle 3 can adopt a single-port type or a double-port type.

Example 2

As shown in Figure 6, a tunnel fire separation system provided by this embodiment includes several combined fire-fighting water curtain nozzles 11 installed on the top of the tunnel and evenly distributed in rows, connected with the combined fire-fighting water curtain nozzles 11 The fire branch pipe 19, the water curtain system control valve group 12 connected with the fire branch pipe 19, the fire chief 15 and the fire alarm controller 13 connected with the water curtain system control valve group 12 are connected with the fire alarm controller 13 and arranged in the tunnel The fire detector 14 on the top, the fire main valve 16 connected with the fire main 15, the fire water pump 17 connected with the fire main valve, and the fire water pool 18 connected with the fire water pump 17. In this embodiment, the tunnel is divided into several areas by several groups of 3 rows of combined fire-fighting water curtain nozzles 11, and the combined fire-fighting water curtain nozzles 11 in the same row are evenly arranged, and the combined fire-fighting water curtain nozzles in the same row The water curtain sprayed by the curtain nozzle 11 is all perpendicular to the longitudinal direction of the tunnel. Under normal circumstances, the length of the tunnel separation area is 25-40m. Taking a 200m tunnel as an example, the length of each section is 40m. A water curtain system control valve group 12 is arranged in one group, and at the same time, at least one fire detector 14 is arranged in each area. When a fire breaks out in a certain area, the fire detector in this area detects a fire signal and transmits the signal to the fire alarm controller to control the start of the fire pump and the 6-row (1 group of 3 rows) combined type fire pump at the edge of the area Fire-fighting water curtain nozzles form a 3-layer fire-fighting water curtain at both ends of the fire area. It has been verified by repeated tests that each group is equipped with 3 combined fire-fighting water curtain nozzles, the thickness of the formed water curtain is uniform, the effect of heat insulation and smoke insulation is the best, and the water consumption is less. It can be said that compared with the prior art, the utility model has outstanding substantive features and remarkable progress, and the utility model has broad promotion prospects in the field of fire protection technology.

The foregoing embodiments are only preferred embodiments of the present utility model, and are not limitations of the protection scope of the present utility model, but all the design principles of the present utility model, and the changes made by non-creative work on this basis, all should belong to the present utility model. within the scope of the new protection.

Claims (5)

1. a kind of Combined type firefighting drencher, which is characterized in that including the nozzle body being connect using screw thread with fire protection pipeline (1), the 2 window type water spray nozzles (3) laid at nozzle body (1) side and interval and 2 the first droop water curtains are set The second droop water spray nozzle (4) in nozzle body (1) bottom center is arranged in nozzle (2), and setting is in nozzle body (1) Inner flow passage (5), setting in the nozzle body (1), be used for window type water spray nozzle (3) and the first droop water spray nozzle (2) The first cavity (6) being connected to inner flow passage (5) runs through the shunting body (7) of the first cavity (6) setting and tapered shape, with And setting is in shunting body (7), the second cavity (8) for being connected to inner flow passage (5) and the second droop water spray nozzle (4)；Institute It states window type water spray nozzle (3) and first droop water spray nozzle (2) annular is disposed in an evenly spaced relation in nozzle body (1) side, And what the window type water spray nozzle (3), the first droop water spray nozzle (2) and the second droop water spray nozzle (4) sprayed Water curtain is in same plane；Shunting body (7) bottom is fixedly connected with nozzle body (1) and sets at the top of the shunting body (7) It sets in inner flow passage (5), is shunted by the fire water that the second cavity (8) will flow out inner flow passage (5).

2. a kind of Combined type firefighting drencher according to claim 1, which is characterized in that the window type water spray nozzle It (3) is one of single port type, twoport type.

3. a kind of Combined type firefighting drencher according to claim 1, which is characterized in that the window type water spray nozzle (3) and the total flow of the first droop water spray nozzle (2) injection fire water is the injection fire water of the second droop water spray nozzle (4) 4 times of flow.

4. a kind of Combined type firefighting drencher according to claim 3, which is characterized in that the first droop water curtain The water curtain exhibition angle of nozzle (2), window type water spray nozzle (3) and the second droop water spray nozzle (4) is between 120 ° to 150 °.

5. a kind of tunnel fire proofing separating system, which is characterized in that including it is several be mounted on tunnel top such as Claims 1 to 4 Described in any item Combined type firefighting drenchers (11), the fire-fighting branch pipe being connect with Combined type firefighting drencher (11) (19), the water curtain system control valve group (12) connecting with fire-fighting branch pipe (19) is connect with water curtain system control valve group (12) Fire chief (15) and fire alarm control unit (13), connect with fire alarm control unit (13) and tunnel top are arranged in Fire detector (14), the fire-fighting main valve (16) being connect with fire chief (15), the fire pump being connect with fire-fighting main valve (17), And the fire cistern (18) being connect with fire pump (17)；The Combined type firefighting drencher (11) is pressed vertical perpendicular to tunnel It arranges to direction and at least 2 rows is set, and the Combined type firefighting drencher (11) of same row is located at same row in uniformly arrangement Combined type firefighting drencher (11) injection water curtain be each perpendicular to tunnel longitudinal direction.