Fire water supply equipment for expressway tunnel

Abstract

The utility model relates to the technical field of tunnel fire water supply, in particular to fire water supply equipment for an expressway tunnel. Comprising a low-position fire pool and an auxiliary mechanism, the auxiliary mechanism comprises a supporting frame, rolling wheels, a limiting screw rod, a water pump device, a filtering device and a water pipe device, a conveying pipeline is arranged to be of a multi-layer structure, and a stainless steel corrugated pipe, a spiral winding type electric tracing band and a polyurethane foaming heat preservation shell are sequentially arranged from inside to outside; connecting discs are welded to the ends of the two sides of the stainless steel corrugated pipe correspondingly, the outer side of the spiral winding type electric tracing band is wrapped with a ceramic fiber heat insulation blanket, and the surface of the polyurethane foaming heat preservation shell is covered with an aluminum alloy light reflection protection plate. Therefore, the problems that in an existing tunnel fire-fighting water supply pipeline, a water pipe is simple in structure, an anti-freezing structure is not arranged, the freezing phenomenon is prone to occurring in part of low-temperature mountain area tunnels, and use is affected can be solved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel fire water supply technology, and in particular to a fire water supply device for highway tunnels. Background Technology

[0002] With the increasing construction of highways, tunnels are frequently built, requiring fire-fighting pools for fire prevention. These pools need a continuous water supply and are typically constructed as elevated water tanks on mountainsides. The water source for these elevated pools is mountain streams. The water from the mountain streams enters the elevated pools and then flows through pipes into the fire-fighting pools for tunnel fire prevention. However, the mountain stream water contains impurities such as sand and gravel. As it enters the elevated pools and then the pipes, the sand and gravel can clog the pipes, making it difficult for water from the elevated pools to flow into the fire-fighting pools. This results in poor fire-fighting effectiveness.

[0003] A search revealed that existing technology CN218027961 U describes a tunnel fire-fighting water supply system, belonging to the technical field of tunnel fire protection. It includes a high-level water tank, a fire-fighting water tank, water pipes, and a filter tank. The high-level water tank is enclosed and located on a mountainside. The fire-fighting water tank is located within the tunnel, with its height exceeding that of the main fire-fighting water tank. One end of the water pipe is fixedly connected to the high-level water tank, and the other end is also fixedly connected. The water pipes are connected to both the fire-fighting water tank and the main fire-fighting water tank. The filter tank is located inside the high-level water tank and is slidably connected to it, with the sliding direction along the height of the high-level water tank. The filter tank is used to filter sand and gravel from the water. This application offers better fire-fighting performance.

[0004] However, the above-mentioned water supply system has the following problems in actual use: the water pipe structure is simple and no antifreeze structure is set. It is prone to freezing in some low-temperature mountain tunnels, which affects its use. Utility Model Content

[0005] The purpose of this utility model is to provide a fire-fighting water supply device for highway tunnels, which aims to solve the problem that the existing tunnel fire-fighting water supply pipelines have simple pipe structures and no anti-freezing structures, making them prone to freezing in some low-temperature mountain tunnels, thus affecting their use.

[0006] To achieve the above objectives, this utility model provides a fire-fighting water supply device for highway tunnels, including a low-level fire-fighting water tank, which is installed on the ground, and also includes auxiliary mechanisms;

[0007] The auxiliary mechanism includes a support frame, rollers, a limiting screw, a water pump device, a filter device, and a water pipe device. The support frame is fixed to the ground by the limiting screw, the rollers are located at the bottom of the support frame, the water pump device is located at the top of the support frame and is connected to the low-level fire water tank through the filter device, and the water pipe device is located on the outlet side of the water pump device.

[0008] The water pipe assembly includes a delivery pipe and clamps. The delivery pipe has a multi-layer structure, consisting of a stainless steel corrugated pipe, a spiral-wound electric heating tape, and a polyurethane foam insulation shell, from the inside out. Connecting discs are welded to both ends of the stainless steel corrugated pipe. The spiral-wound electric heating tape is wrapped with a ceramic fiber insulation blanket. The surface of the polyurethane foam insulation shell is covered with an aluminum alloy reflective protective plate. The outlet of the delivery pipe is connected to an external water supply network. The clamps are detachably connected to the delivery pipe and are located at the connecting discs of the stainless steel corrugated pipe.

[0009] The water pump device includes a main water pump, an auxiliary water pump, and a switching valve. The main water pump is fixed on the support frame, and its inlet is connected to the outlet side of the filter device. The auxiliary water pump is fixed on the support frame and close to the main water pump. Its inlet is connected to the outlet side of the filter device through a side branch pipe with a manual valve. The switching valve is respectively installed on the pipeline that cooperates with the main water pump and the auxiliary water pump in the delivery pipeline.

[0010] The filtration device includes a Y-shaped filter, a disc filter, and a control valve. The Y-shaped filter is installed on the outlet pipe of the low-level fire water tank. The disc filter is installed on the outlet side of the Y-shaped filter. The control valve is installed on the outlet side of the disc filter, and its outlet side is connected to the inlet side branch pipes of the main water pump and the auxiliary water pump respectively. The end of the branch pipe away from the auxiliary water pump is welded to the outside of the outlet hole on the inlet side of the control valve core.

[0011] A magnetic rust remover may also be installed between the stacked disc filter and the control valve.

[0012] The highway tunnel fire water supply equipment also includes a cooperating mechanism, which includes a fixed box and a filter screen. The fixed box is installed on the top of the low-level fire water tank, and the filter screen is welded to the bottom of the fixed box.

[0013] This utility model discloses a fire-fighting water supply device for highway tunnels. During use, water is filtered by a filtration device, then pumped and pressurized by a water pump, and finally transported to the network via a delivery pipeline. The delivery pipelines are secured with clamps for easy disassembly. The pipeline has a multi-layered structure, consisting of a stainless steel corrugated pipe, a spiral-wound electric heating tape, and a polyurethane foam insulation shell, arranged from the inside out. Connecting discs are welded to both ends of the stainless steel corrugated pipe. The spiral-wound electric heating tape is wrapped with a ceramic fiber insulation blanket, and the polyurethane foam insulation shell is covered with an aluminum alloy reflective protective plate. This multi-layered structure improves the pipeline's anti-freezing capability, thus solving the problem of existing tunnel fire-fighting water supply pipelines having simple pipe structures and lacking anti-freezing features, which easily freeze in some low-temperature mountain tunnels, affecting their use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of the fire-fighting water supply equipment for highway tunnels according to the first embodiment of this utility model.

[0016] Figure 2 This is a top view of the fire-fighting water supply equipment for highway tunnels according to the first embodiment of this utility model.

[0017] Figure 3 This is a schematic diagram of the conveying pipeline according to the first embodiment of this utility model.

[0018] Figure 4 This is a schematic diagram of the clamp structure according to the first embodiment of this utility model.

[0019] Figure 5 This is a schematic diagram of the overall structure of the fire-fighting water supply equipment for highway tunnels according to the second embodiment of this utility model.

[0020] In the diagram: 101-Low-level fire water tank, 102-Ground, 103-Support frame, 104-Roller, 105-Limit screw, 106-Transport pipeline, 1061-Stainless steel corrugated pipe, 1062-Spiral wound electric heating tape, 1063-Polyurethane foam insulation shell, 107-Clamping, 108-Main water pump, 109-Auxiliary water pump, 110-Switching valve, 111-Y-type filter, 112-Disc plate fine filter, 113-Control valve, 201-Fixed box, 202-Filter screen. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Example 1:

[0023] like Figures 1 to 4 As shown, where Figure 1 This is a schematic diagram of the overall structure of fire-fighting water supply equipment in a highway tunnel. Figure 2 This is a top view of the fire-fighting water supply equipment in a highway tunnel. Figure 3 This is a structural schematic diagram of the conveying pipe 106. Figure 4 This is a structural schematic diagram of clamp 107. This utility model provides a fire-fighting water supply device for highway tunnels: it includes a low-level fire water tank 101 and auxiliary mechanisms. The auxiliary mechanisms include a support frame 103, rollers 104, a limiting screw 105, a water pump device, a filter device, and a water pipe device. The water pump device includes a main water pump 108, an auxiliary water pump 109, and a switching valve 110. The filter device includes a Y-shaped filter 111, a disc filter 112, and a control valve 113. The water pipe device includes a delivery pipe 106 and clamp 107. This solution addresses the problem in existing tunnel fire-fighting water supply pipelines where the pipe structure is simple and lacks anti-freezing features, leading to freezing in some low-temperature mountain tunnels and affecting usability. It is understood that this solution improves the anti-freezing capability of the water supply pipeline.

[0024] In this embodiment, the low-level fire water tank 101 is installed on the ground 102, and the low-level fire water tank 101 is used to store fire water.

[0025] The support frame 103 is fixed to the ground 102 by the limiting screw 105. The rollers 104 are located at the bottom of the support frame 103. The water pump device is located at the top of the support frame 103 and is connected to the low-level fire water tank 101 through the filter device. The water pipe device is located on the outlet side of the water pump device. The ground 102 is cast with a fixing block with threaded holes to facilitate the fixing of the support frame 103 by the T-shaped limiting screw 105. The bottom of the support frame 103 is provided with multiple rollers 104. The rollers 104 can roll linearly in the guide grooves on the ground 102. The water pump device is used for water extraction and pressurization. The filter device is used for water filtration. The water pipe device is used for water transportation. The cooperation between the support frame 103 and the rollers 104 facilitates the movement of the water pump device and facilitates quick maintenance in some confined spaces.

[0026] The conveying pipe 106 has a multi-layer structure, consisting of a stainless steel corrugated pipe 1061, a spiral-wound electric heating tape 1062, and a polyurethane foam insulation shell 1063 from the inside out. Connecting discs are welded to both ends of the stainless steel corrugated pipe 1061. The spiral-wound electric heating tape 1062 is wrapped with a ceramic fiber insulation blanket. The surface of the polyurethane foam insulation shell 1063 is covered with an aluminum alloy reflective protective plate. The outlet of the conveying pipe 106 is connected to an external water supply network. The clamp 107 is detachably connected to the conveying pipe 106 and is located at the connecting disc of the stainless steel corrugated pipe 1061. The stainless steel corrugated pipe 1061 is made of 304 stainless steel, with a pressure resistance of ≥2.5MPa, and can expand and contract to compensate for thermal expansion and contraction. Compared with traditional single-layer metal pipes, it has better seismic resistance, and the joints are less prone to cracking due to pressure fluctuations. The spiral-wound electric heating tape 1062 is wrapped around the outside of the stainless steel corrugated pipe 1061, and a ceramic fiber insulation blanket is wrapped around its outside. Finally, a polyurethane foam insulation shell 1063 is set on the outside of the ceramic fiber insulation blanket. The clamp 107 is used for quick connection and disassembly of the conveying pipes 106, and the conveying pipes 106 are also connected and fixed to the water outlet side of the water pump device through the clamp 107, which facilitates quick disassembly. The upper clamp plate of the clamp 107 has an ear plate with a through U-shaped groove on the right side.

[0027] Secondly, the main water pump 108 is fixed on the support frame 103, and its inlet is connected to the outlet side of the filter device; the auxiliary water pump 109 is fixed on the support frame 103 and close to the main water pump 108, and its inlet is connected to the outlet side of the filter device through a side branch pipe with a manual valve; the switching valves 110 are respectively installed on the pipeline of the conveying pipe 106 that cooperates with the main water pump 108 and the auxiliary water pump 109. The main water pump 108 and the auxiliary water pump 109 are respectively fixed to the support frame 103 by bolts. Shock-absorbing rubber blocks are respectively installed between the bottom of the base on both sides and the support frame 103, and the shock-absorbing rubber blocks are sleeved on the outside of the fixing bolts. The auxiliary water pump 109 is a standby pump; when the main water pump 108 fails, the auxiliary water pump 109 can be switched to operate, facilitating water supply without shutting down the main pump. The switching valve 110 is connected and fixed to the delivery pipe 106 by clamps 107. When the main water pump 108 is operating, the manual valve on the side branch pipe of the auxiliary water pump 109 is closed, and the switching valve 110 on the auxiliary water pump 109 and the delivery pipe 106 are connected. When valve 110 is closed, the switching valve 110 on the main water pump 108 and the delivery pipeline 106 is open, and the control valve 113 is open, water is drawn by the main water pump 108 and then delivered through the delivery pipeline 106. When the main water pump 108 fails, the control valve 113 is closed, the switching valve 110 on the main water pump 108 and the delivery pipeline 106 is closed, and the manual valve on the side branch pipe of the auxiliary water pump 109 and the switching valve 110 on the auxiliary water pump 109 and the delivery pipeline 106 are opened. At this time, water can be supplied through the operation of the auxiliary water pump 109, and the main water pump 108 can be disassembled for maintenance.

[0028] Then, the Y-shaped filter 111 is installed on the outlet pipe of the low-level fire water tank 101; the disc-type fine filter 112 is installed on the outlet side of the Y-shaped filter 111; the control valve 113 is installed on the outlet side of the disc-type fine filter 112, and its outlet side is connected to the inlet side branch pipes of the main water pump 108 and the auxiliary water pump 109 respectively. The end of the branch pipe away from the auxiliary water pump 109 is welded to the outside of the outlet hole on the inlet side of the valve core of the control valve 113. The filter screen of the Y-shaped filter 111 has a mesh size of 5mm and is used for coarse filtration. The filter screen of the disc-type fine filter 112 has a mesh size of 0.1mm and is used for fine filtration. One flange of the control valve 113 is connected to the outlet flange of the disc-type fine filter 112 by a screw and nut, and the other side is fixed to the inlet side of the main water pump 108 by bolts.

[0029] Finally, a magnetic rust remover can also be installed between the disc filter 112 and the control valve 113. By installing a magnetic rust remover (not shown in the figure) between the disc filter 112 and the control valve 113, this structural arrangement can further improve the water filtration effect. The magnetic rust remover is a product of existing technology and can be used directly.

[0030] This invention addresses the problem of existing tunnel fire-fighting water supply pipelines having simple pipe structures and lacking anti-freezing features, leading to freezing issues in some low-temperature mountain tunnels and affecting their use. The invention utilizes a filtration device to filter the water, followed by pumping and pressurizing the water, and finally delivering it to the network via the delivery pipe 106. The delivery pipes 106 are secured by clamps 107 for quick disassembly. Furthermore, the delivery pipes 106 have a multi-layered structure, consisting of a stainless steel corrugated pipe 1061, a spiral-wound electric heating tape 1062, and a polyurethane foam insulation shell 1063, from the inside out. 61 is a 304 stainless steel corrugated pipe with a pressure resistance of ≥2.5MPa and the ability to compensate for thermal expansion and contraction. Compared with traditional single-layer metal pipes, it has better seismic resistance and the joints are less prone to cracking due to pressure fluctuations. The spiral-wound electric heating tape 1062 is wound around the outside of the stainless steel corrugated pipe 1061, and a ceramic fiber insulation blanket is wrapped around it. Finally, a polyurethane foam insulation shell 1063 is set on the outside of the ceramic fiber insulation blanket. Through the multi-layer structure of the conveying pipe 106, the antifreeze ability of the pipe can be improved, thereby solving the problem that the existing tunnel fire water supply pipeline has a simple water pipe structure and no antifreeze structure, which is prone to freezing in some low-temperature mountain tunnels, affecting its use.

[0031] Example 2:

[0032] like Figure 5 As shown in the figure, 5 is a schematic diagram of the overall structure of the fire-fighting water supply equipment for highway tunnels. Based on the first embodiment, this utility model provides a fire-fighting water supply equipment for highway tunnels. The fire-fighting water supply equipment for highway tunnels also includes a cooperating mechanism, which includes a fixed box 201 and a filter screen 202.

[0033] The fixing box 201 is located at the top of the low-level fire water tank 101; the filter screen 202 is welded to the bottom of the fixing box 201. The fixing box 201 has symmetrical fixing ears on the side away from the main water pump 108, which facilitates fixing to the top of the low-level fire water tank 101 with expansion bolts. The filter screen 202 is welded to ensure stability, and its filter screen aperture is larger than that of the Y-shaped filter 111.

[0034] In this embodiment, when water is introduced into the low-level fire water tank 101, the water guide pipe can be placed on top of the fixed box 201. Then, when the water falls into the low-level fire water tank 101, it can be initially filtered through the filter screen 202, thereby improving the water filtration effect.

[0035] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A fire-fighting water supply system for highway tunnels, comprising a low-level fire-fighting water tank, wherein the low-level fire-fighting water tank is installed on the ground, characterized in that: It also includes auxiliary mechanisms; The auxiliary mechanism includes a support frame, rollers, a limiting screw, a water pump device, a filter device, and a water pipe device. The support frame is fixed to the ground by the limiting screw, the rollers are located at the bottom of the support frame, the water pump device is located at the top of the support frame and is connected to the low-level fire water tank through the filter device, and the water pipe device is located on the outlet side of the water pump device. The water pipe assembly includes a delivery pipe and clamps. The delivery pipe has a multi-layer structure, consisting of a stainless steel corrugated pipe, a spiral-wound electric heating tape, and a polyurethane foam insulation shell, from the inside out. Connecting discs are welded to both ends of the stainless steel corrugated pipe. The spiral-wound electric heating tape is wrapped with a ceramic fiber insulation blanket. The surface of the polyurethane foam insulation shell is covered with an aluminum alloy reflective protective plate. The outlet of the delivery pipe is connected to an external water supply network. The clamps are detachably connected to the delivery pipe and are located at the connecting discs of the stainless steel corrugated pipe.

2. The fire-fighting water supply equipment for highway tunnels as described in claim 1, characterized in that: The water pump device includes a main water pump, an auxiliary water pump, and a switching valve. The main water pump is fixed on the support frame, and its inlet is connected to the outlet side of the filter device. The auxiliary water pump is fixed on the support frame and close to the main water pump. Its inlet is connected to the outlet side of the filter device through a side branch pipe with a manual valve. The switching valve is respectively installed on the pipeline that cooperates with the main water pump and the auxiliary water pump in the delivery pipeline.

3. The fire-fighting water supply equipment for highway tunnels as described in claim 2, characterized in that: The filtration device includes a Y-shaped filter, a disc filter, and a control valve. The Y-shaped filter is installed on the outlet pipe of the low-level fire water tank. The disc filter is installed on the outlet side of the Y-shaped filter. The control valve is installed on the outlet side of the disc filter, and its outlet side is connected to the inlet side branch pipes of the main water pump and the auxiliary water pump respectively. The end of the branch pipe away from the auxiliary water pump is welded to the outside of the outlet hole on the inlet side of the valve core of the control valve.

4. The fire-fighting water supply equipment for highway tunnels as described in claim 3, characterized in that: A magnetic rust remover can also be installed between the disc filter and the control valve.

5. The fire-fighting water supply equipment for highway tunnels as described in claim 1, characterized in that... : The fire-fighting water supply equipment for the highway tunnel also includes a cooperating mechanism, which includes a fixed box and a filter screen. The fixed box is installed on the top of the low-level fire water tank, and the filter screen is welded to the bottom of the fixed box.

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