CN212898583U - Fire-fighting water supply system used in long and large highway tunnel - Google Patents

Fire-fighting water supply system used in long and large highway tunnel Download PDF

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CN212898583U
CN212898583U CN202021184793.4U CN202021184793U CN212898583U CN 212898583 U CN212898583 U CN 212898583U CN 202021184793 U CN202021184793 U CN 202021184793U CN 212898583 U CN212898583 U CN 212898583U
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water
fire
tunnel
pipe
fighting
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刘远明
彭琛
伍达富
刘建浩
蒋亮
贾圣东
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Guizhou University
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Guizhou University
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Abstract

The utility model relates to a highway tunnel fire control technical field of growing up especially relates to a fire prevention water supply system in being used for growing up highway tunnel hole, include the catch basin, fire pond, work cistern, the work pond and the ground life pond with tunnel center escape canal, side ditch intercommunication, draw forth the catch basin outlet pipe bottom the catch basin, the catch basin outlet pipe passes through horn mouth conduit and fire pond intercommunication, is provided with the fire outlet conduit who is used for connecting the fire hydrant system in the tunnel hole bottom side of fire pond, is provided with voltage stabilizer on fire outlet conduit, is provided with the overflow water pipe and communicates work cistern through the overflow water pipe at fire pond opposite side, and the work cistern communicates life water purification unit through its outlet pipe. The invention makes full use of water seepage and drainage in the tunnel operation period, avoids the difficulty of building a large high-level water pool at the entrance of a tunnel with a large tunnel, reduces the pressure of a fire-fighting pipe network, and simultaneously provides water source supply in refuge.

Description

Fire-fighting water supply system used in long and large highway tunnel
Technical Field
The utility model relates to a highway tunnel fire control technical field of growing up especially relates to a fire prevention water supply system in being used for highway tunnel hole of growing up.
Background
At present, the most common fire water supply system for highway tunnels sets up high-order fire water pool at tunnel mouth department, rely on gravity to supply water in the tunnel, water pressure and fire water consumption need satisfy the regulation in "fire water supply and fire hydrant system technical specification" GB 50974-2014 7.4.16, according to the regulation, the water storage capacity of the tunnel of growing up that exceeds 3000m reaches 600m and spends, only construct the huge high-order water pool of volume at the entrance to the cave and require too high to the place, possibly cause the landslide calamity even, and the complicated meeting requirements that are difficult to of mountain area topography. Even if high-level water pools are built at the opening, the tail end of the fire-fighting pipe network in the hole can form larger pressure, and a pressure reducing device is needed.
Therefore, according to the concept of green construction and utilization of the long tunnel, aiming at the characteristic of large water seepage and drainage amount in the operation period of the long tunnel, the invention provides a system for supplying fire-fighting water by collecting tunnel seepage and drainage water, which is constructed in a tunnel cross hole, not only utilizes the tunnel seepage and drainage water, but also ensures the pressure safety of a tunnel fire-fighting pipe network, and simultaneously, an emergency water source can be provided for the tunnel even if a pool or a municipal pipe network outside the tunnel is damaged in refuge or wartime.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fire control water supply system in being used for growing up highway tunnel hole to overcome prior art's not enough.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fire-fighting water supply system used in a tunnel of a long and large road comprises a water collecting tank (1) communicated with a central drainage ditch and side ditches of the tunnel, a fire-fighting water tank (4), a working water storage tank (5), a working water tank (17) and a ground domestic water tank (18), a water outlet pipe (15) of the water collecting tank is led out from the bottom of the water collecting tank (1), the water outlet pipe (15) of the water collecting tank is communicated with the fire pool (4) through a bell mouth water pipe (3), a fire-fighting water outlet pipeline (29) used for connecting a fire hydrant system in the tunnel is arranged at the bottom side of the fire pool (4), a pressure stabilizing device (30) is arranged on the fire-fighting water outlet pipeline (29), an overflow water pipe (24) is arranged on the other side of the fire-fighting water pool (4), the fire-fighting water pool (4) is communicated with the working water reservoir (5) through the overflow water pipe (24), and the working water reservoir (5) is communicated with the domestic water purifying device (6) through a water outlet pipe (25) of the working water reservoir; wherein the working reservoir (5) is communicated with a working water pool (17) through a water pump (26), the domestic water purifying device (6) is communicated with a ground domestic water pool (18) through a purified water booster pump (27), and the tail part of the domestic water purifying device (6) is provided with a blow-off pipe (28).
In the fire-fighting water supply system used in the tunnel of the long and large road, a plurality of water level high probes (8), middle probes (9) and long probes (10) are arranged in a water collecting tank (1), and the output ends of the high probes (8), the middle probes (9) and the long probes (10) are connected with a full-automatic water level controller (2); a standby water pipe (16) communicated with a water source outside the hole is arranged at the communication position of the water outlet pipe (15) of the water collecting tank and the bell mouth water pipe (3), an electric control valve (11) is arranged on the standby water pipe (16), and the output end of the full-automatic water level controller (2) is connected with the electric control valve (11) to realize the on-off control of the electric control valve (11).
The utility model provides an among the interior fire prevention water supply system of highway tunnel hole grows up, catch basin (1) is through catch basin inlet tube (7) connection tunnel center escape canal, side ditch, and sets up filter screen (14) in catch basin inlet tube (7).
The utility model provides an among the fire prevention water supply system in being used for growing up highway tunnel hole, be provided with spiral type elongated filter screen (19) in horn mouth water pipeline (3), be provided with fixed thin filter screen and can dismantle draw-in groove (20) at spiral type elongated filter screen (19) tail end, at horn mouth water pipeline (3) outside parcel insulation material layer (21).
The utility model provides an among the fire prevention water supply system in being used for growing up highway tunnel hole, be provided with access hole (22) on fire-fighting water pond (4) of horn mouth water pipeline (3) delivery port department, set up access ladder (23) in its inside, be provided with water quality testing probe (13) in fire-fighting water pond (4), and multi-parameter water quality monitoring ware (12) are connected to this water quality testing probe (13) output.
The utility model has the advantages that:
firstly, the tunnel on the long and large mountain has large water inflow, and the water resource is wasted due to the whole discharge and should be utilized.
And secondly, the fire-fighting water demand of the long and large tunnel is large, a fire-fighting water pool can be built in the tunnel, water can be supplied by utilizing the height difference formed by the gradient of the tunnel, and the pressure of a fire-fighting pipe network is greatly reduced.
And thirdly, the water supply mode is more guaranteed, because the water taking place is not only dependent on a certain well or a natural water pit falling into a water tunnel, the water source is from the whole section of the tunnel to seep water and the hillside drainage at the opening of the tunnel, so that the water source is more sufficient, especially in rainy season, the water quantity is larger, and the underground water system can be connected with underground rivers, karst caves and the like under the influence of the hydrogeological conditions of the mountain, so that the water source is more guaranteed than a high-level water pool at the opening of the tunnel.
And fourthly, when the tunnel plays the role of civil air defense engineering, the fire pool in the tunnel is arranged at the cross tunnel, so that water is convenient to take and can be used by people.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example (b): a fire-fighting water supply system used in a tunnel of a long and large road, as shown in figure 1, comprises a water collecting tank (1) communicated with a central drainage ditch and side ditches of the tunnel, a fire pool (4), a working water storage tank (5), a working water pool (17) and a ground domestic water pool (18), a water outlet pipe (15) of the water collecting tank is led out from the bottom of the water collecting tank (1), the water outlet pipe (15) of the water collecting tank is communicated with the fire pool (4) through a bell mouth water pipe (3), a fire-fighting water outlet pipeline (29) used for connecting a fire hydrant system in the tunnel is arranged at the bottom side of the fire pool (4), a pressure stabilizing device (30) is arranged on the fire-fighting water outlet pipeline (29), an overflow water pipe (24) is arranged on the other side of the fire-fighting water pool (4), the fire-fighting water pool (4) is communicated with the working water reservoir (5) through the overflow water pipe (24), and the working water reservoir (5) is communicated with the domestic water purifying device (6) through a water outlet pipe (25) of the working water reservoir; wherein the working reservoir (5) is communicated with a working water pool (17) through a water pump (26), the domestic water purifying device (6) is communicated with a ground domestic water pool (18) through a purified water booster pump (27), and the tail part of the domestic water purifying device (6) is provided with a blow-off pipe (28).
Wherein a plurality of water level high probes (8), middle probes (9) and long probes (10) are arranged in the water collecting tank (1), and the output ends of the high probes (8), the middle probes (9) and the long probes (10) are connected with a full-automatic water level controller (2); a standby water delivery pipe (16) communicated with a water source outside the hole is arranged at the communication position of the water outlet pipe (15) of the water collection tank and the bell mouth water delivery pipe (3), an electric control valve (11) is arranged on the standby water delivery pipe (16), and the output end of the full-automatic water level controller (2) is connected with the electric control valve (11) to realize the on-off control of the electric control valve (11); the water collecting tank (1) is connected with a central drainage ditch and a side ditch of the tunnel through a water collecting tank water inlet pipe (7), and a filter screen (14) is arranged in the water collecting tank water inlet pipe (7); a spiral elongated filter screen (19) is arranged in the bell mouth water pipe (3), a fixed thin filter screen and a detachable clamping groove (20) are arranged at the tail end of the spiral elongated filter screen (19), and a heat insulation material layer (21) is wrapped outside the bell mouth water pipe (3); an access hole (22) is arranged on the fire pool (4) at the water outlet of the bell mouth water pipe (3), an access ladder (23) is arranged in the fire pool, a water quality detection probe (13) is arranged in the fire pool (4), and the output end of the water quality detection probe (13) is connected with a multi-parameter water quality monitor (12).
Specifically, this embodiment only supplies water to the fire water pool 4 through the catch basin 1, and concrete catch basin 1 passes through catch basin inlet tube 7 and connects tunnel central drainage ditch, side ditch collection tunnel infiltration drainage, and through filter screen 14 prefilter some impurity, according to "highway tunnel traffic engineering design criteria" (JGT D71-2004), catch basin 1 need accomplish the fire water pool retaining within 48h, forecast tunnel gush water and prevent stifled back infiltration according to groundwater dynamics method, through the actual measurement comparison, can satisfy the requirement under the general condition of catch basin 1, and the water level can reach high probe 8 departments, and it is bigger to ooze the drainage in rainy season, and the water source is more sufficient. At the moment, the full-automatic water level controller 2 controls the electric control valve 11 to be in a closed state, water in the water collecting tank 1 flows out from the water collecting tank water outlet pipe 15 and is delivered to the fire pool 4 through the bell mouth water delivery pipeline 3.
Wherein, horn mouth conduit 3 can make the below that the turbid thing after the prefilter deposits the pipeline under the action of gravity, and 19 secondary filter debris in the long and thin filter screen of screw-tupe in the pipeline in addition simultaneously to fix in the pipeline through dismantling draw-in groove 20, there is access hole 22 on 4 upper portions of fire-fighting water pond, can enter into the fire-fighting water pond from access hole 22 on the ground and carry out work in through access ladder 23.
After fire-fighting water tank 4 holds full water, in importing water into work cistern 5 through overflow water pipe 24, there is water pump 26 in the work cistern 5, through filtration treatment many times, water in the fire-fighting water tank can satisfy generally washes, work water requirements such as afforestation, and send the water pump to ground work water tank 17 through water pump 26, unnecessary water is sent water to domestic water purification device 6 through the overflow mode equally, inlet tube 25 in the domestic water purification device 6 is the overflow outlet pipe of work cistern 5 promptly.
When water overflows step by step and enters the domestic water purification device 6, the purified water is treated by the purification equipment, the purified water is pumped to the ground domestic water pool 18 by the purified water booster pump for maintenance workers in the tunnel operation period and providing domestic water for emergency refuge, and the treated sewage is discharged by the sewage discharge pipe 28.
The tunnel samples the water quality analysis to infiltration gushing water at the construction stage, and as the important foundation of eliminating the pond site selection in the hole, detect the water in the water-proof pond again on this basis, collect information by water quality testing probe 13 and show in the multi-parameter water quality monitor 12 on cross-cut ground, can feed back to ground staff, monitor quality of water and can provide the basis for using on next step.
Wherein there is fire control outlet pipe way 29 of fire hydrant system in the connection hole bottom the fire-fighting water pool, because the pond is built at the below ground, for guaranteeing fire control water supply safety and regional water pressure that the discrepancy in elevation is not enough, increase voltage regulator device 30 in fire control outlet pipe way 29 department, guarantee pipe network pressure, even also have enough water pressure to supply water under the condition that appears leaking.
Example two:
the fire-fighting water supply system in the long and large tunnel hole of the embodiment is different from the first embodiment in that:
as shown in fig. 1, in the fire fighting water supply system in the long and large tunnel of the embodiment, water is supplied to the fire pool from the water collecting pool 1 and the spare water pipe (16) for receiving water sources outside the tunnel: when the tunnel site area is in a dry season, due to the fact that underground water environment is changeable and complex, the water collecting tank can not meet the requirement of supplying water to the fire pool in 48 hours in the dry season, at the moment, the water level is located between the middle probe 9 and the long probe 10, the long probe 10 and the middle probe 9 lose water resistance, water is separated from the two probes, an electric control valve 11 is opened by an internal relay in the full-automatic water level controller 2, a standby water pipe (16) connected with a water source outside the tunnel starts to supply water to the water collecting tank inside the tunnel, and the water is filtered and precipitated through the horn mouth water pipe 3, the fire-fighting water supply system is arranged in the tunnel, but the fire-fighting water supply system does not influence the fire-fighting water, and has the characteristics of more water sources, wide range and mutual independence, the two sets of water post-treatment devices can utilize the water, but not all are discharged, thereby not only meeting the green utilization idea of the underground water of the long and large tunnel but also solving the problem of fire-fighting water.
The utility model discloses in concrete application, the size in catch basin, fire pond and the quantity in whole tunnel can be according to the tunnel water inflow and water consumption and the tunnel slope and come concrete adjustment.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. The utility model provides a fire prevention water supply system in highway tunnel hole grows up, includes catch basin (1), fire-fighting water pond (4), work cistern (5), work pond (17) and ground domestic water pond (18) with tunnel center escape canal, side ditch intercommunication, its characterized in that: a water collecting tank water outlet pipe (15) is led out of the bottom of the water collecting tank (1), the water collecting tank water outlet pipe (15) is communicated with a fire-fighting water tank (4) through a bell mouth water conveying pipeline (3), a fire-fighting water outlet pipeline (29) used for connecting a fire hydrant system in a tunnel hole is arranged at the bottom side of the fire-fighting water tank (4), a pressure stabilizing device (30) is arranged on the fire-fighting water outlet pipeline (29), an overflow water pipe (24) is arranged at the other side of the fire-fighting water tank (4), the fire-fighting water tank (4) is communicated with a working water storage tank (5) through the overflow water pipe (24), and the working water storage tank (5) is communicated with a; wherein the working reservoir (5) is communicated with a working water pool (17) through a water pump (26), the domestic water purifying device (6) is communicated with a ground domestic water pool (18) through a purified water booster pump (27), and the tail part of the domestic water purifying device (6) is provided with a blow-off pipe (28).
2. The fire fighting water supply system in the tunnel of the long and big road according to claim 1, wherein: a plurality of water level high probes (8), middle probes (9) and long probes (10) are arranged in the water collecting tank (1), and the output ends of the high probes (8), the middle probes (9) and the long probes (10) are connected with a full-automatic water level controller (2); a standby water pipe (16) communicated with a water source outside the hole is arranged at the communication position of the water outlet pipe (15) of the water collecting tank and the bell mouth water pipe (3), an electric control valve (11) is arranged on the standby water pipe (16), and the output end of the full-automatic water level controller (2) is connected with the electric control valve (11) to realize the on-off control of the electric control valve (11).
3. The fire fighting water supply system in the tunnel of the long and big road according to claim 1, wherein: the water collecting tank (1) is connected with a central drainage ditch and a side ditch of the tunnel through a water collecting tank water inlet pipe (7), and a filter screen (14) is arranged in the water collecting tank water inlet pipe (7).
4. The fire fighting water supply system in the tunnel of the long and big road according to claim 1, wherein: the water pipe is characterized in that a spiral type elongated filter screen (19) is arranged in the horn mouth water pipe (3), a fixed thin filter screen and a detachable clamping groove (20) are arranged at the tail end of the spiral type elongated filter screen (19), and a heat insulation material layer (21) is wrapped outside the horn mouth water pipe (3).
5. The fire fighting water supply system in the tunnel of the long and big road according to claim 1, wherein: an access hole (22) is arranged on the fire pool (4) at the water outlet of the bell mouth water pipe (3), an access ladder (23) is arranged in the fire pool, a water quality detection probe (13) is arranged in the fire pool (4), and the output end of the water quality detection probe (13) is connected with a multi-parameter water quality monitor (12).
CN202021184793.4U 2020-06-23 2020-06-23 Fire-fighting water supply system used in long and large highway tunnel Active CN212898583U (en)

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CN202021184793.4U CN212898583U (en) 2020-06-23 2020-06-23 Fire-fighting water supply system used in long and large highway tunnel

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Application Number Priority Date Filing Date Title
CN202021184793.4U CN212898583U (en) 2020-06-23 2020-06-23 Fire-fighting water supply system used in long and large highway tunnel

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024055541A1 (en) * 2022-09-16 2024-03-21 中铁六局集团有限公司 Tunnel fire-fighting water supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024055541A1 (en) * 2022-09-16 2024-03-21 中铁六局集团有限公司 Tunnel fire-fighting water supply system

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