Tunnel fire water supply system

Abstract

The utility model discloses a tunnel fire -fighting water supply system belongs to the field of tunnel fire -fighting, a tunnel fire -fighting water supply system, including fire pump house, the surface of pipe body is provided with water source filtering mechanism with the input of water pump body, the surface of water suction pipe is provided with heat -preserving anti -icing mechanism, water suction pipe, water suction pump, pipeline body and the flange junction of flexible joint all are provided with anticorrosive mechanism. The utility model not only can filter out the sludge and impurity in water source when fire -fighting water supply system uses, make the water source more reliable, at the same time, the user is convenient to its dismounting maintenance, can avoid the phenomenon that water suction pipe appears fragile ageing even rupture because of low temperature in the use process of fire -fighting water supply system when fire -fighting water supply system uses, further prolongs the service life of water suction pipe, and prolongs the service life of flange plate, at the same time, can reduce the harm of external environment to the pipeline.

Description

Technical Field

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

[0002] Traditional tunnel fire-fighting water supply systems cannot monitor the water flow in the pipes during use, so it is impossible to determine whether the pipes are damaged or leaking. Water pressure data in the fire-fighting pipes cannot be monitored remotely. In order to meet market needs, a new tunnel fire-fighting water supply system is required.

[0003] A search revealed Chinese patent application number 202323568880.6, which discloses a tunnel anti-freezing fire-fighting water supply system. The system includes a storage tank containing a mixing chamber and a storage chamber. The mixing chamber is located above the storage chamber, and a hollow baffle is fixed between them. A cavity is formed through the center of the hollow baffle, connecting the mixing chamber, the cavity, and the storage chamber. The tunnel anti-freezing fire-fighting water supply system described in this patent has the following shortcomings: Firstly, the existing water supply system does not filter the water source effectively enough, failing to remove sludge and impurities, making the water supply unreliable. Secondly, it is inconvenient for users to disassemble and maintain. Thirdly, existing systems typically lack corrosion resistance, leading to rust and corrosion of the bolts at the flange connections of the suction pipe, pump, pipe body, and flexible joints. This also increases the risk of damage to the pipes from the external environment. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of insufficient water filtration, inadequate heat preservation and antifreeze effects, and lack of corrosion resistance in existing water supply systems, and to propose a tunnel fire-fighting water supply system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tunnel fire-fighting water supply system includes a fire pump room, a control box installed inside the fire pump room, a low-level water tank on one side of the fire pump room, a large-diameter seepage well on one side of the low-level water tank, and a high-level water tank on one side of the fire pump room. Suction pumps are installed inside the fire pump room via screws. A pump body is installed on the surface of the large-diameter seepage well. A pipe is installed at the output end of the pump body via screws. A water source filtration mechanism is provided on the surface of the pipe and at the input end of the pump body. A heat insulation and antifreeze mechanism is provided on the surface of the suction pipe. Corrosion-resistant mechanisms are provided at the flange connections of the suction pipe, the suction pump, the pipe body, and the flexible joint.

[0007] As a preferred technical solution of this application, the elevated water tank is positioned higher than the fire pump room. Both the input and output ends of the suction pump are fitted with flexible joints via screws. A suction pipe is fitted onto the surface of the flexible joint via screws. The output ends of the suction pump are fitted with pipe bodies via screws. A fire protection IoT gateway is fitted onto the surface of the top of the control box via screws. A filter screen is installed on the inner wall of the large-diameter seepage well. Wireless digital level gauges are fitted onto the surfaces of both the low-level and elevated water tanks via screws. The fire pump room and the low-level... Flexible sleeves are installed on the inner walls of the water tank, large-diameter seepage well, and elevated water tank on both sides. One end of the suction pipe passes through the flexible sleeve and extends into the interior of the lower-level water tank. A Y-type filter is installed on the surface of the suction pipe by screws. A water inlet pipe is installed inside the fire pump room, and the main pipe body is connected to the water inlet pipe. An inlet pipe is installed on the surface of the water inlet pipe. One end of the inlet pipe passes through the fire pump room, the flexible sleeve, and the elevated water tank in sequence and extends into the interior of the elevated water tank. A booster pump is installed on the inner wall of the fire pump room. The input end of the booster pump... The booster pump is connected to the interior of the pipeline body. A drain pipe is installed at the output end of the booster pump, with one end extending to the outside of the fire pump room. A water outlet pipe is installed on the surface of the elevated water tank, with one end extending into the interior of the elevated water tank. A valve is fitted onto the surface of the water outlet pipe. Butterfly valves are fitted onto the surfaces of the suction pipe, inlet pipe, and pipeline body. Second wireless digital pressure gauges are installed on the surfaces of the suction pipe, inlet pipe, and drain pipe. A first wireless digital pressure gauge is installed on the surface of the pipeline body. Below the check valve located on the surface of the pipe body, the check valve is installed on the surface of the pipe body, the door is installed on the surface of the fire pump room, the door rotates and engages with the surface of the fire pump room, flow meters are installed on the surfaces of the inlet pipe and the outlet pipe, one end of the pipe body extends into the interior of the large-diameter seepage well, the output end of the pump body extends into the interior of the low-level water tank, a support frame is fitted on the surface of the pipe body, the bottom end of the support frame is threadedly fastened to the inner wall of the fire pump room by screws, and a drain valve is installed on the surface of the pipe body.

[0008] As a preferred technical solution of this application, the water source filtration mechanism consists of a backwash filter, mounting studs, nuts and mounting flanges. The surface of the pipe body is provided with a backwash filter, and the pipe body is connected to the interior of the backwash filter. The input end of the water pump body extends into the interior of the backwash filter, and mounting flanges are installed on both sides of the backwash filter.

[0009] As a preferred technical solution of this application, the surfaces of the mounting flanges are all threaded with mounting studs. One end of each mounting stud passes through the mounting flange, the pipe body, and the pump body in sequence and extends to the outside of the input end of the pipe body and the pump body, respectively. Nuts are threaded onto the surfaces of the mounting studs, and the surfaces of the nuts are in contact with the surfaces of the input ends of the pipe body and the pump body, respectively.

[0010] As a preferred technical solution of this application, the heat preservation and antifreeze mechanism is composed of a self-adhesive aluminum foil layer, a heat preservation cotton sleeve, a rock wool layer and a polyethylene foam layer. The surface of the water suction pipe is covered with a heat preservation cotton sleeve for heat preservation of the surface of the water suction pipe, and the inner wall of the heat preservation cotton sleeve is equipped with a rock wool layer.

[0011] As a preferred technical solution of this application, the inner wall of the rock wool layer is provided with a polyethylene foam layer for improving the heat insulation effect on the surface of the water suction pipe. The inner wall of the polyethylene foam layer is in contact with the surface of the water suction pipe. The surface of the insulation cotton sleeve is adhered with a self-adhesive aluminum foil layer for installing the insulation cotton sleeve on the surface of the water suction pipe.

[0012] As a preferred technical solution of this application, the anti-corrosion mechanism consists of a first protective cover, a second protective cover, fastening bolts, rubber gaskets and sealing gaskets. The surface of the water suction pipe, water suction pump, pipe body and flexible joint is provided with a second protective cover, and the surface of the bottom position of the second protective cover is provided with a first protective cover. The surfaces of the first protective cover and the second protective cover rotate and cooperate with each other.

[0013] As a preferred technical solution of this application, the surface of the second protective cover is threaded with fastening bolts, one end of the fastening bolts penetrates the second protective cover and is threadedly fastened to the inner wall of the first protective cover. A rubber pad is installed on the inner wall of the second protective cover, and a sealing gasket is installed on the inner wall of the first protective cover. The sealing gasket is in contact with the surface of the rubber pad.

[0014] Compared with the prior art, this utility model provides a tunnel fire-fighting water supply system, which has the following beneficial effects:

[0015] 1. The tunnel fire water supply system, through the water source filtration mechanism, can filter out sludge and impurities in the water source, making the water source more reliable. At the same time, it is convenient for users to disassemble and maintain it, solving the problem of insufficient water source filtration effect in the existing technology.

[0016] 2. The tunnel fire water supply system, through the installation of a heat preservation and antifreeze mechanism, can prevent the water suction pipe from becoming brittle, aging, or even cracking due to low temperatures during the use of the fire water supply system, thereby extending the service life of the water suction pipe and solving the problem that the heat preservation and antifreeze effect in the existing technology needs to be further improved.

[0017] 3. The tunnel fire water supply system, through the installation of anti-corrosion mechanisms, can prevent the bolts at the flange connection points of the suction pipe, suction pump, pipe body, and flexible joint from rusting and corrosion, thus extending the service life of the flanges. At the same time, it can reduce the damage to the pipeline caused by the external environment, solving the problem that existing technologies usually do not have anti-corrosion functions. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0020] Figure 3 This is a top view cross-sectional structural diagram of the present invention;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 For the present utility model Figure 2 Enlarged structural diagram of the water source filtration mechanism;

[0023] Figure 6 For the present utility model Figure 2 Enlarged structural diagram of the thermal insulation and antifreeze mechanism;

[0024] Figure 7 For the present utility model Figure 2 Enlarged structural diagram of the anti-corrosion mechanism.

[0025] In the picture:

[0026] 1. Fire pump room; 101. Control box; 102. Low-level water tank; 103. Large-diameter seepage well; 104. High-level water tank; 105. Filter screen; 106. Wireless digital level gauge; 107. Door; 108. Booster pump; 109. Outlet pipe; 110. Valve; 111. Pump body; 112. Suction pipe; 113. Butterfly valve; 114. Suction pump; 115. Support frame; 116. Y-type filter; 117. Water inlet pipe; 118. Inlet pipe; 119. Drain pipe; 120. Pipe body; 121. Flexible joint; 122. First wireless digital pressure gauge 1. Drain valve; 1. Check valve; 1. Second wireless digital pressure gauge; 1. Flexible sleeve; 1. Flow meter; 1. Fire protection IoT gateway; 1. Pipe body; 2. Water source filtration mechanism; 2. Backwash filter; 2. Mounting studs; 2. Nuts; 2. Mounting flange; 3. Thermal insulation and antifreeze mechanism; 3. Self-adhesive aluminum foil layer; 3. Thermal insulation cotton sleeve; 3. Rock wool layer; 34. Polyethylene foam layer; 4. Corrosion protection mechanism; 41. First protective cover; 42. Second protective cover; 43. Fastening bolts; 44. Rubber gasket; 45. Sealing gasket. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0028] Reference Figure 1-4A tunnel fire-fighting water supply system includes a fire pump room 1. A control box 101 is installed inside the fire pump room 1. A low-level water tank 102 is located on one side of the fire pump room 1, and a large-diameter seepage well 103 is located on one side of the low-level water tank 102. A high-level water tank 104 is located on one side of the fire pump room 1, and the high-level water tank 104 is positioned higher than the fire pump room 1. A filter screen 105 is installed on the inner wall of the large-diameter seepage well 103. Wireless digital level gauges 106 are screwed onto the surfaces of both the low-level water tank 102 and the high-level water tank 104. The wireless digital level gauge 106 can be of the MD series. The output terminal of the wireless digital level gauge 106 is electrically connected to the input terminal of the control box 101. A suction pump is screwed into the interior of the fire pump room 1. 114. The suction pump 114 can be an SLG series model. The input end of the suction pump 114 is electrically connected to the output end of the control box 101. Both the input and output ends of the suction pump 114 are fitted with flexible joints 121 by screws. The surface of the flexible joints 121 is fitted with suction pipes 112 by screws. Flexible sleeves 126 are installed on the inner walls of both sides of the fire pump room 1, the low-level water tank 102, the large-diameter seepage well 103, and the high-level water tank 104. One end of the suction pipe 112 passes through the flexible sleeve 126 and extends into the interior of the low-level water tank 102. A Y-type filter 116 is fitted with a screw on the surface of the suction pipe 112. The output end of the suction pump 114 is fitted with a pipe body 120 by screws. A water inlet pipe 117 is installed inside the fire pump room 1. The main body of the pipeline 120 is connected to the water inlet pipe 117. An inlet pipe 118 is installed on the surface of the water inlet pipe 117. One end of the inlet pipe 118 passes through the fire pump room 1, the flexible sleeve 126, and the elevated water tank 104, extending into the interior of the elevated water tank 104. A booster pump 108 is installed on the inner wall of the fire pump room 1. The booster pump 108 can be a GPD series model. The input end of the booster pump 108 is electrically connected to the output end of the control box 101. The input end of the booster pump 108 is connected to the interior of the main body of the pipeline 120. A drain pipe 119 is installed at the output end of the booster pump 108. One end of the drain pipe 119 extends to the outside of the fire pump room 1. An outlet pipe 109 is installed on the surface of the elevated water tank 104. One end of the outlet pipe 109 extends into the elevated water tank 104. Inside the water tank 104, a valve 110 is fitted onto the surface of the outlet pipe 109. The valve 110 can be a TM series model. The input end of the valve 110 is electrically connected to the output end of the control box 101. A butterfly valve 113 is fitted onto the surfaces of the suction pipe 112, the inlet pipe 118, and the pipe body 120. A second wireless digital pressure gauge 125 is installed on the surfaces of the suction pipe 112, the inlet pipe 118, and the drain pipe 119. The second wireless digital pressure gauge 125 can be an RGY series model. The input end of the second wireless digital pressure gauge 125 is electrically connected to the output end of the control box 101. A first wireless digital pressure gauge 122 is installed on the surface of the pipe body 120. The first wireless digital pressure gauge 122 can also be an RGY series model.The input terminal of the first wireless digital pressure gauge 122 is electrically connected to the output terminal of the control box 101. The first wireless digital pressure gauge 122 is located below the check valve 124 on the surface of the pipe body 120. The check valve 124 is installed on the surface of the pipe body 120. A door 107 is provided on the surface of the fire pump room 1. The door 107 rotates with the surface of the fire pump room 1. Flow meters 127 are installed on the surfaces of the inlet pipe 118 and the drain pipe 119. The flow meter 127 can be of the DN series. The output terminal of the flow meter 127 is electrically connected to the input terminal of the control box 101. A fire protection IoT gateway 128 is installed on the surface of the top of the control box 101 by screws. The output terminal is electrically connected to the input terminal of the fire protection IoT gateway 128. A water pump body 111 is mounted on the surface of the large-diameter seepage well 103. The water pump body 111 can be an SLG series model. The input terminal of the water pump body 111 is electrically connected to the output terminal of the control box 101. A pipe body 129 is mounted on the output terminal of the water pump body 111 via screws. One end of the pipe body 129 extends into the interior of the large-diameter seepage well 103, and the output terminal of the water pump body 111 extends into the interior of the low-level water tank 102. A support frame 115 is fitted onto the surface of the pipe body 120. The bottom end of the support frame 115 is threadedly fastened to the inner wall of the fire pump room 1 via screws. A drain valve 123 is mounted on the surface of the pipe body 120.

[0029] Reference Figure 2 and Figure 5 Furthermore, the device also includes a water source filtration mechanism 2 provided on the surface of the pipe body 129 and at the input end of the water pump body 111. The water source filtration mechanism 2 consists of a backwash filter 21, mounting studs 22, nuts 23, and mounting flanges 24. The backwash filter 21 is provided on the surface of the pipe body 129 and is connected to the interior of the backwash filter 21. The input end of the water pump body 111 extends into the interior of the backwash filter 21. Mounting flanges 24 are installed on both sides of the backwash filter 21. Mounting studs 22 are threadedly connected to the surfaces of the mounting flanges 24. One end of the mounting stud 22 passes through the mounting flange 24, the pipe body 129, and the water pump body 111 in sequence and extends to the outside of the input ends of the pipe body 129 and the water pump body 111. Nuts 23 are threadedly fitted on the surface of the mounting stud 22. The surface of the nuts 23 contacts the surfaces of the pipe body 129 and the input ends of the water pump body 111. By setting up a water filtration system, sludge and impurities in the water source can be filtered out, making the water source more reliable. At the same time, it is convenient for users to disassemble and maintain.

[0030] Reference Figure 2 and Figure 6Furthermore, the surface of the suction pipe 112 is equipped with a thermal insulation and antifreeze mechanism 3. This mechanism 3 consists of a self-adhesive aluminum foil layer 31, an insulation cotton sleeve 32, a rock wool layer 33, and a polyethylene foam layer 34. The surface of the suction pipe 112 is covered with an insulation cotton sleeve 32 for surface insulation. A rock wool layer 33 is installed on the inner wall of the insulation cotton sleeve 32. A polyethylene foam layer 34, used to improve the insulation effect on the surface of the suction pipe 112, is installed on the inner wall of the rock wool layer 33. The inner wall of the polyethylene foam layer 34 is in contact with the surface of the suction pipe 112. A self-adhesive aluminum foil layer 31 is adhered to the surface of the insulation cotton sleeve 32 for attaching it to the surface of the suction pipe 112. By setting up this thermal insulation and antifreeze mechanism, the suction pipe 112 can be prevented from becoming brittle, aging, or even cracking due to low temperatures during the use of the fire-fighting water supply system, further extending the service life of the suction pipe 112.

[0031] Reference Figure 2 and Figure 7 Furthermore, the flange connections of the suction pipe 112, the suction pump 114, the pipe body 120, and the flexible joint 121 are all equipped with anti-corrosion mechanisms 4. The anti-corrosion mechanism 4 consists of a first protective cover 41, a second protective cover 42, fastening bolts 43, rubber gaskets 44, and sealing gaskets 45. The surfaces of the suction pipe 112, the suction pump 114, the pipe body 120, and the flexible joint 121 are provided with second protective covers 42. The surface of the bottom of the second protective cover 42 is provided with a first protective cover 41. The surfaces of the first protective cover 41 and the second protective cover 42 rotate and cooperate with each other. The surface of the second protective cover 42 is threaded with fastening bolts 43. One end of the fastening bolt 43 passes through the second protective cover 42 and is threadedly fastened to the inner wall of the first protective cover 41. The inner wall of the second protective cover 42 is equipped with rubber gaskets 44, and the inner wall of the first protective cover 41 is equipped with sealing gaskets 45. The surfaces of the sealing gaskets 45 and the rubber gaskets 44 are in contact. By setting up anti-corrosion mechanisms, the bolts at the flange connections of the suction pipe 112, suction pump 114, pipe body 120, and flexible joint 121 can be prevented from rusting and corroding, thus extending the service life of the flanges and reducing the damage to the pipeline caused by the external environment.

[0032] Specifically, in use, the tunnel fire-fighting water supply system works as follows: First, when river water enters the large-diameter seepage well 103, the filter screen 105 removes impurities such as weeds, silt, and suspended solids. The preliminarily filtered water is stored inside the large-diameter seepage well 103. The wireless digital level gauge 106 monitors the water levels in the low-level water tank 102 and the high-level water tank 104 in real time. When the wireless digital level gauge 106 detects that the water level in the low-level water tank 102 is too low, it sends a signal to the control box 101. After the control box 101 receives the signal, it automatically controls the water pump 111 to operate. The water pump 111 draws water from the large-diameter seepage well 103 into the low-level water tank 102. When the wireless digital level gauge 106 detects that the water level in the high-level water tank 104 is too low, it sends a signal to the control box 101.After receiving a signal from the wireless digital level gauge 106, the control box 101 automatically controls the water pump 114 to start. Under the action of the water pump 114, water is drawn into the low-level water tank 102 through the water suction pipe 112 and into the pipe body 120. The water then enters the high-level water tank 104 directly through the water inlet pipe 117 and the water outlet pipe 118 to supply water to the high-level water tank 104. If there is no high-level water tank 104, the booster pump 108 needs to be turned on so that the booster pump 108 draws water from the water inlet pipe 117 into the drain pipe 119. Under the action of the booster pump 108, the water is pressurized, and the pressure is increased by the first wireless digital pressure gauge 122 on the surface of the water suction pipe 112. The pressure inside the water pipe 112 is monitored. Since there are two or more sets of water pumps 114, if one set of water pumps 114 fails, the user can manually close the butterfly valve 113 on the surface of the faulty water pipe 112 to repair the faulty water pump 114, allowing the other water pumps 114 to work normally. When water enters the water pipe 112, the Y-type filter 116 filters out sludge and impurities in the water. The flexible joint 121 is installed at the input and output ends of the water pump 114 with screws. When the water pump 114 is working, it will vibrate. The flexible joint 121 can reduce the vibration of the water pump 114 and each pipe. The water enters the pipe body 120 and the inlet pipe 118 through the water inlet pipe 117. Backflow is prevented by the check valve 124. The first wireless digital pressure gauge 122 monitors the water pressure inside the pipe body 120, the second wireless digital pressure gauge 125 monitors the water pressure inside the inlet pipe 118, and the flow meter 127 monitors the water flow rate inside the inlet pipe 118 and the pipe body 120. This monitoring data is transmitted to the control box 101, and the fire protection IoT gateway 128 sends the monitored data to the equipment room or base station. Staff can view the data through the monitoring center or via [other means]. The cloud platform transmits data to the mobile terminal for inspection and debugging of various components inside the fire pump room 1. The support frame 115 supports the bottom of the pipe body 120, preventing damage from vertical pressure. For maintenance of the pipe body 120, the user manually closes the butterfly valve 113 and opens the drain valve 123 to release water. The flexible sleeve 126 protects the surfaces of the suction pipe 112, inlet pipe 118, and drain pipe 119. In the event of a fire in the tunnel, the control box 101 receives a signal and controls the valve 110 on the surface of the outlet pipe 109 to open, discharging water from the high-level water tank 104 through the outlet pipe 109 for fire extinguishing.

[0033] Subsequently, the user places the backwash filter 21 at the flange of the inlet end of the pipe body 129 and the water pump body 111, and then tightens the mounting stud 22, causing the mounting stud 22 to move to the outside of the pipe body 129 and the water pump body 111. The user then tightens the nut 23 on the surface of the mounting flange 24. With the threaded engagement of the nut 23 and the mounting stud 22, the backwash filter 21 is assembled onto the surface of the inlet end of the pipe body 129 and the water pump body 111. When the water pump body 111 draws water from the large-diameter seepage well 103 through the pipe body 129, the water enters the interior of the backwash filter 21 through the mounting flange 24. Under the action of the backwash filter 21, impurities such as sludge and aquatic plants in the water are filtered to achieve the function of filtering the water source of the fire-fighting water supply system. This allows the fire-fighting water supply system to filter out sludge and impurities from the water source, making the water source more reliable. At the same time, it facilitates the user's disassembly and maintenance. The specific structure and working principle of the backwash filter 21 are existing technologies and will not be described in detail here.

[0034] Subsequently, the suction pipe 112, which protrudes between the low-level water tank 102 and the fire pump room 1, is outdoors and is prone to freezing damage in cold weather. The user places an insulation cotton sleeve 32 on the surface of the suction pipe 112, causing the insulation cotton sleeve 32 to move the rock wool layer 33 and the polyethylene foam layer 34 to contact the surface of the suction pipe 112. The user then wraps the self-adhesive aluminum foil layer 31 around the surface of the insulation cotton sleeve 32. Under the action of the self-adhesive aluminum foil layer 31, the insulation cotton sleeve 32 is wrapped around the surface of the suction pipe 112. The combined action of the insulation cotton sleeve 32, the rock wool layer 33, and the polyethylene foam layer 34 provides insulation for the surface of the suction pipe 112, thereby achieving the function of heat preservation and antifreeze for the fire water supply system. This prevents the suction pipe 112 from becoming brittle, aging, or even breaking due to low temperatures during the use of the fire water supply system, further extending the service life of the suction pipe 112.

[0035] Subsequently, the flange connections of the suction pipe 112, the suction pump 114, the pipe body 120, and the flexible joint 121 are prone to rust and corrosion due to external environmental erosion. The user places the first protective cover 41 and the second protective cover 42 onto the surfaces of the suction pipe 112, the suction pump 114, the pipe body 120, and the flexible joint 121 respectively, and then rotates the second protective cover 42 on the surface of the first protective cover 41, causing the second protective cover 42 to move to the surface of the first protective cover 41. At this time, the second protective cover 42 drives the rubber gasket 44 to contact the surface of the sealing gasket 45. Under the combined action of the rubber gasket 44 and the sealing gasket 45, a seal is formed between the first protective cover 41 and the second protective cover 42. Then, tighten the fastening bolts 43 on the surface of the second protective cover 42. Under the action of the fastening bolts 43, the second protective cover 42 is installed on the surface of the first protective cover 41. The combined action of the first protective cover 41 and the second protective cover 42 can protect the flange connection of the suction pipe 112, the suction pump 114, the pipe body 120, and the flexible joint 121, thereby achieving the anti-corrosion function of the fire water supply system. This prevents the bolts at the flange connection of the suction pipe 112, the suction pump 114, the pipe body 120, and the flexible joint 121 from rusting and corrosion during the use of the fire water supply system, extending the service life of the flanges. At the same time, it can reduce the damage to the pipeline caused by the external environment. The control box 101 has sufficient processing capacity and interfaces to simultaneously monitor and control the operating status and actions of multiple electrical components, and perform centralized control to ensure the efficient operation of the entire water supply system. The specific connection and control method is existing technology and will not be described in detail here. Finally, the use of the water supply system is completed.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tunnel fire-fighting water supply system, comprising a fire pump room (1), characterized in that: The fire pump room (1) is equipped with a control box (101). A low-level water tank (102) is provided on one side of the fire pump room (1). A large-diameter seepage well (103) is provided on one side of the low-level water tank (102). A high-level water tank (104) is provided on one side of the fire pump room (1). A water pump (114) is installed inside the fire pump room (1) by screws. A water pump body (111) is installed on the surface of the large-diameter seepage well (103). A pipe body (129) is installed at the output end of the water pump body (111) by screws. A water source filter mechanism (2) is provided on the surface of the pipe body (129) and the input end of the water pump body (111). A heat preservation and antifreeze mechanism (3) is provided on the surface of the water suction pipe (112). An anti-corrosion mechanism (4) is provided at the flange connection of the water suction pipe (112), the water pump (114), the pipe body (120), and the flexible joint (121).

2. The tunnel fire-fighting water supply system according to claim 1, characterized in that: The elevated water tank (104) is located higher than the fire pump room (1). Both the input and output ends of the suction pump (114) are fitted with flexible connectors (121) by screws. A suction pipe (112) is fitted onto the surface of the flexible connector (121) by screws. The output end of the suction pump (114) is fitted with a pipe body (120) by screws. A fire IoT gateway (128) is fitted onto the surface of the top of the control box (101) by screws. A filter screen (105) is installed on the inner wall of the large-diameter seepage well (103). Wireless digital level gauges (106) are fitted onto the surfaces of both the low-level water tank (102) and the elevated water tank (104) by screws. The fire pump room (1) and the low-level water tank (104) are... 102) Flexible sleeves (126) are installed on the inner walls of both sides of the large-diameter seepage well (103) and the high-level water tank (104). One end of the suction pipe (112) passes through the flexible sleeve (126) and extends into the interior of the low-level water tank (102). A Y-type filter (116) is installed on the surface of the suction pipe (112) by screws. A water inlet pipe (117) is installed inside the fire pump room (1). The pipe body (120) is connected to the water inlet pipe (117). An inlet pipe (118) is installed on the surface of the water inlet pipe (117). One end of the inlet pipe (118) passes through the fire pump room (1), the flexible sleeve (126), and the high-level water tank (104) in sequence and extends into the interior of the high-level water tank (104). The fire pump room (1) is equipped with a booster pump (108) on its inner wall. The input end of the booster pump (108) is connected to the inside of the pipe body (120). The output end of the booster pump (108) is equipped with a drain pipe (119). One end of the drain pipe (119) extends to the outside of the fire pump room (1). The surface of the high-level water tank (104) is equipped with a water outlet pipe (109). One end of the water outlet pipe (109) extends to the inside of the high-level water tank (104). A valve (110) is fitted on the surface of the water outlet pipe (109). A butterfly valve (113) is fitted on the surface of the suction pipe (112), the inlet pipe (118), and the pipe body (120). 18) A second wireless digital pressure gauge (125) is installed on the surface of both the inlet pipe (118) and the drain pipe (119). A first wireless digital pressure gauge (122) is installed on the surface of the pipe body (120). The first wireless digital pressure gauge (122) is located below the check valve (124) on the surface of the pipe body (120). A check valve (124) is installed on the surface of the pipe body (120). A door (107) is provided on the surface of the fire pump room (1). The door (107) rotates with the surface of the fire pump room (1). Flow meters (127) are installed on the surfaces of both the inlet pipe (118) and the drain pipe (119). One end of the pipe body (129) extends into the interior of the large-diameter seepage well (103).The output end of the pump body (111) extends into the interior of the low-level water tank (102). A support frame (115) is fitted onto the surface of the pipe body (120). The bottom end of the support frame (115) is threadedly fastened to the inner wall of the fire pump room (1) with screws. A drain valve (123) is installed on the surface of the pipe body (120).

3. A tunnel fire-fighting water supply system according to claim 1, characterized in that: The water source filtration mechanism (2) consists of a backwash filter (21), mounting studs (22), nuts (23) and mounting flanges (24). The surface of the pipe body (129) is provided with a backwash filter (21). The pipe body (129) is connected to the interior of the backwash filter (21). The input end of the water pump body (111) extends into the interior of the backwash filter (21). Mounting flanges (24) are installed on both sides of the backwash filter (21).

4. A tunnel fire-fighting water supply system according to claim 3, characterized in that: The surface of the mounting flange (24) is threaded with mounting studs (22). One end of the mounting stud (22) passes through the mounting flange (24), the pipe body (129) and the water pump body (111) in sequence and extends to the outside of the input end of the pipe body (129) and the water pump body (111) respectively. The surface of the mounting stud (22) is threaded with a nut (23). The surface of the nut (23) contacts the surface of the input end of the pipe body (129) and the water pump body (111) respectively.

5. A tunnel fire-fighting water supply system according to claim 1, characterized in that: The heat preservation and antifreeze mechanism (3) is composed of a self-adhesive aluminum foil layer (31), a heat preservation cotton sleeve (32), a rock wool layer (33) and a polyethylene foam layer (34). The surface of the water suction pipe (112) is covered with a heat preservation cotton sleeve (32) for heat preservation of the surface of the water suction pipe (112), and the inner wall of the heat preservation cotton sleeve (32) is equipped with a rock wool layer (33).

6. A tunnel fire-fighting water supply system according to claim 5, characterized in that: The inner wall of the rock wool layer (33) is fitted with a polyethylene foam layer (34) to improve the heat insulation effect on the surface of the water suction pipe (112). The inner wall of the polyethylene foam layer (34) is in contact with the surface of the water suction pipe (112). The surface of the insulation cotton sleeve (32) is adhered with a self-adhesive aluminum foil layer (31) for installing the insulation cotton sleeve (32) on the surface of the water suction pipe (112).

7. A tunnel fire-fighting water supply system according to claim 1, characterized in that: The corrosion protection mechanism (4) consists of a first protective cover (41), a second protective cover (42), fastening bolts (43), rubber pads (44) and sealing gaskets (45). The surfaces of the water suction pipe (112), water suction pump (114), pipe body (120) and flexible joint (121) are provided with a second protective cover (42). The surface of the bottom position of the second protective cover (42) is provided with a first protective cover (41). The surfaces of the first protective cover (41) and the second protective cover (42) rotate and cooperate with each other.

8. A tunnel fire-fighting water supply system according to claim 7, characterized in that: The surface of the second protective cover (42) is threaded with fastening bolts (43). One end of the fastening bolt (43) passes through the second protective cover (42) and is threadedly fastened to the inner wall of the first protective cover (41). A rubber pad (44) is installed on the inner wall of the second protective cover (42), and a sealing gasket (45) is installed on the inner wall of the first protective cover (41). The sealing gasket (45) is in contact with the surface of the rubber pad (44).

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