Fabricated integrated buried pump station for tunnel fire protection and greening irrigation

Abstract

The utility model discloses a tunnel fire-fighting and greening irrigation combined assembly type integrated buried pump station which is arranged at a highway tunnel portal and comprises a water tank and a pump room which are arranged adjacently, and the water tank and the pump room are both formed by splicing module plates. The water tank is provided with a water inlet pipeline and connected with a water outlet pipe of the deep-well pump through the water inlet pipeline to inject water into the water tank; an inspection manhole is formed in the top of the water tank and also serves as a greening irrigation and tunnel fire-fighting water intake; a water pump and a control cabinet which are mutually connected are arranged in the pump room, one end of the water pump is connected to the water tank through a water suction pipeline, and the other end of the water pump is connected to a high-position pool outside the pump room through a water outlet pipeline and used for supplementing water to the high-position pool. The utility model can be buried in the tunnel portal as a transfer pump station of a high-position fire pool, and can be used as a water taking source of a watering cart while ensuring the safety of tunnel fire water.

Description

Technical Field

[0001] The utility model belongs to the technical field of integrated equipment, and relates to a buried pump station, in particular to an assembled integrated buried pump station for combined use of tunnel fire fighting and greening irrigation. Background Technique

[0002] As an important part of highway engineering, highway tunnels have many complex factors affecting safe driving in the tunnel due to their semi-closed space conditions, making them prone to highway traffic accidents. It is difficult for people to escape and evacuate in long-distance tunnels, with high fire risks and great difficulties in fire fighting and rescue. Once an accident occurs, it will cause huge economic losses and social impacts. Therefore, higher requirements are put forward for the safety and reliability of tunnel fire fighting.

[0003] At present, most of the fire water supply systems for highway tunnels adopt the water supply mode of "deep well pump - high-level fire fighting water tank". Through the investigation of the actual operation of the tunnel fire fighting system, the following problems and deficiencies are found:

[0004] (1) The safety and reliability of the water supply form of directly supplying water from the deep well pump to the high-level fire fighting water tank are insufficient. Since the water intake of the deep well pump is greatly affected by the underground water level, and the factors affecting the water level change are complex during the operation period of the expressway, it is difficult for the water output of the deep well pump to meet the requirements of the code for the water replenishment flow of the fire fighting water tank.

[0005] (2) The contradiction between the demand for greening irrigation and maintenance of the expressway and the relatively small water intake sources along the expressway leads to the irregular operation of water sprinklers often taking water from the tunnel fire hydrants nearby during the maintenance process in the operation period. This water intake method not only cannot effectively ensure that the water consumption of the high-level fire fighting water tank is not used, but also poses a traffic safety hazard to other operating vehicles in the tunnel when the water sprinkler stays in the tunnel to take water.

[0006] (3) All the water for greening irrigation is replenished to the high-level water tank by the deep well pump and then taken from the fire hydrants at the tunnel entrance through gravity energy dissipation. This water supply method causes a large amount of energy consumption waste of the water pump.

[0007] (4) Due to the high frequency of water intake for greening maintenance, this water supply method results in the working condition of the deep well pump replenishing water frequently. The motor starts and stops repeatedly, which is easy to be damaged and affects the service life of the overall equipment. Summary of the Invention

[0008] Aiming at the above-mentioned disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide an assembled integrated buried pump station for combined use of tunnel fire fighting and greening irrigation. The pump station structure is assembled by precast modular plates, including two parts: a pump house and a combined fire fighting and greening water tank (water tank). It can be buried at the tunnel entrance as a transfer pump station for the high-level fire fighting water tank, and can be used as a water intake source for water sprinklers while ensuring the safety of tunnel fire fighting water.

[0009] The technical solution of the present utility model is as follows:

[0010] An assembled integrated underground pumping station for combined use of tunnel fire protection and greening irrigation. The assembled integrated underground pumping station is arranged at the entrance of a highway tunnel and includes an adjacent water tank and a pump house, both of which are assembled by modular plates; the water tank is provided with a water inlet pipeline and is filled with water by connecting the water outlet pipe of a deep well pump through the water inlet pipeline; a maintenance manhole is arranged at the top of the water tank, which also serves as a water intake for greening irrigation and tunnel fire protection; a water pump and a control cabinet are connected to each other in the pump house. One end of the water pump is connected to the water tank through a suction pipeline, and the other end of the water pump is connected to a high-level water tank outside the pump house through a water outlet pipeline for replenishing water to the high-level water tank.

[0011] Furthermore, both the water tank and the pump house are made of integrally formed metal modular plates and are assembled by bolts and sealing strips.

[0012] Furthermore, the pumping station foundation of the assembled integrated underground pumping station is located below the water tank and the pump house, and includes a concrete cushion layer and a concrete raft slab arranged in sequence from bottom to top. The concrete raft slab is connected to the side plates of the water tank and the pump house by grouting, and the water tank and the pump house do not need to be provided with bottom plates.

[0013] Furthermore, the interior of the water tank and the pump house is supported by an integral framework, and the integral framework structure includes columns, top cross beams and surrounding beams.

[0014] Furthermore, multiple square tube columns are evenly arranged on the four walls of the pump house, and multiple square tube columns are evenly arranged on the four walls and inside the water tank; the tops of the square tube columns are connected and fixed to the top cross beam and the surrounding beams through supports and bolts.

[0015] Furthermore, a ventilation pipe is arranged at the top of the water tank. Two ventilation pipes are arranged at different heights, and an insect-proof net is provided at the end of the ventilation pipe.

[0016] Furthermore, an overflow pipe and a drain pipe are arranged in the water tank and are connected to a sump in the pump house. A sewage pump and a supporting sewage pipeline valve arranged in the sump are discharged to a drainage pipeline outside the pump house.

[0017] Furthermore, multiple assembled diversion walls are erected in the water tank to guide the water flow direction.

[0018] Furthermore, a mechanical exhaust device is arranged at the top of the pump house.

[0019] Furthermore, a hydraulic maintenance chamber is arranged at the top of the pump house.

[0020] The present utility model has the following beneficial effects:

[0021] (1) The pump station of the present utility model is a modular prefabricated structure, adopting a factory production method. The standardized components ensure the stability and consistency of product quality, reducing errors and quality problems caused by on-site processing.

[0022] (2) The present utility model adopts an assembled construction process, which improves the construction efficiency compared with the on-site casting of traditional concrete pools, and effectively reduces the labor cost by significantly shortening the construction period.

[0023] (3) By using the integrated pump station of the present utility model to replenish water to the high-position fire pool, while improving the safety and reliability of fire water use, it can also effectively reduce the starting times of the front-end deep well pump and improve the service life of the equipment.

[0024] (4) By using the integrated pump station of the present utility model to replenish water to the high-position fire pool, it is no longer affected by the large influence of the underground water level on the water intake of the deep well pump, and can ensure the requirements of the code for the replenishing water flow of the high-position fire pool.

[0025] (5) The high-speed maintenance sprinkler can extract greening irrigation water through the special water intake plug of the water tank maintenance manhole 8 of the pump station of the present utility model, improving the operation standardization of the maintenance team and effectively reducing the accident risk brought by the maintenance work to the tunnel operation vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the top plan view of the present utility model;

[0027] Figure 2 is the underground plan view of the present utility model;

[0028] Figure 3 is Figure 1 and Figure 2 the A-A sectional view (the elevation view of the present utility model) in

[0029] Figure 4 is the sump sewage discharge diagram;

[0030] Figure 5 is the overall top view of the internal steel structure of the present utility model;

[0031] Figure 6 is Figure 5 the 1-1 perspective sectional view of

[0032] Figure 7 is Figure 5 the 2-2 perspective sectional view of

[0033] Figure 8 is Figure 5 the 3-3 perspective sectional view of

[0034] Figure 9 is Figure 54-4 perspective sectional view;

[0035] Among them, 1 is the pump house, 2 is the water tank, 3 is the C20 concrete cushion, 4 is the C30 concrete raft foundation, 5 is the liquid level gauge, 6 is the water inlet pipeline, 7 is the vent pipe, 8 is the manhole for water tank maintenance, 9 is the overflow pipe, 10 is the drain pipe, 11 is the mechanical exhaust device, 12 is the water pump, 13 is the sump, 14 is the sewage pump, 15 is the hydraulic maintenance chamber, 16 is the control cabinet, 17 is the bolt-assembled corner staircase, 18 is the assembled diversion wall, 19 is the elevated water tank, 20 is the outlet pipe of the deep well pump, 21 is the water inlet and intake;

[0036] 22 is the column, 23 is the I-beam, 24 is the bolt, 25 is the galvanized bolt connector, 26 is the channel steel, 27 is the modular formwork, 28 is the grouting material, 29 is the H-beam. Specific embodiments

[0037] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0038] The assembled integrated underground pump station for tunnel fire protection and greening irrigation in this embodiment is set at the entrance of the highway tunnel, specifically in the central isolation belt or outside the road red line at the entrance of the highway tunnel.

[0039] The setting method of the assembled integrated underground pump station for tunnel fire protection and greening irrigation in this embodiment is buried type, including the water tank 2 and the pump house 1. The boxes of the water tank 2 and the pump house 1 are both spliced by one-time stretch-formed metal modular formwork 27. The modular formwork 27 is an integrally formed metal modular formwork 27, such as a super-rigid bidirectional corrugated module in Chinese Patent ZL 202123151217.7. Specifically, the water tank 2 and the pump house 1 are adjacent to each other and both are assembled by the modular formwork 27 through bolts and sealing strips.

[0040] The pump station foundation of the assembled integrated underground pump station for tunnel fire protection and greening irrigation in this embodiment is located below the water tank 2 and the pump house 1. The pump station foundation includes a concrete cushion and a concrete slab foundation arranged in sequence from bottom to top; as Figure 3 shown, the pump station foundation includes a C20 concrete cushion 3 and a C30 concrete raft 4.

[0041] The C30 concrete raft 4 and the boxes of the water tank 2 and the pump house 1 are secondarily cast with high-strength concentrated grouting material. The method of concrete secondary casting can refer to Chinese Patent ZL2017206105129 for the connection structure between the buried water tank side plate and the reinforced concrete foundation, and there is no need to set a bottom plate at the bottom of the pump station (that is, the C30 concrete raft 4 is cast with the bottom of the side plate of the water tank 2 and the bottom of the side plate of the box of the pump house 1, and there is no bottom plate at the bottom of the water tank 2 and the bottom of the box of the pump house 1).

[0042] Preferably, the ground of the pump station foundation needs to be sloped towards the suction tank to ensure that the water in the water tank can be completely emptied.

[0043] One side of the water tank 2 is provided with a liquid level gauge 5. The liquid level gauge 5 is arranged in the pump house 1 and has the functions of local liquid level display and remote transmission.

[0044] The top of the water tank 2 is provided with a water inlet pipeline 6. One end of the water inlet pipeline 6 is connected to the outlet pipe 20 of the deep well pump and automatically injects water into the water tank 2 through a control valve to meet the normal water level in the water tank 2.

[0045] The water tank 2 is provided with a water tank maintenance manhole 8. The water tank maintenance manhole 8 is covered with a lid and equipped with a lock and an anti-fall net. The water tank maintenance manhole 8 also serves as a landscape water intake and a fire truck water intake. It can be used for maintenance and water intake. (The high-speed maintenance sprinkler can draw greening irrigation water through the water tank maintenance manhole 8, improving the operation standardization of the maintenance team and effectively reducing the accident risk brought by the maintenance work to the tunnel operation vehicles).

[0046] The top of the water tank 2 is provided with a vent pipe 7. The vent pipe 7 has one high and one low part, and uses the pressure difference of the ambient air formed by the height difference to conduct internal air circulation in the box body. And the end of the vent pipe 7 is provided with an insect-proof net.

[0047] The box body of the water tank 2 is provided with an overflow pipe 9 and a drain pipe 10, which are connected to the sump 13 in the pump house 1. When the water in the water tank 2 exceeds the overflow water level, the excess water is quickly discharged into the sump 13 in the pump house 1 to ensure the internal water level balance of the water tank 2. The sewage pump 14 and the supporting sewage pipeline valves arranged in the sump 13 discharge the water to the external drainage pipeline of the pump house 2. The minimum air gap of the overflow drainage outlet shall not be less than 150 mm, and the ends of the overflow pipe 9 and the drain pipe 10 are both provided with insect-proof nets.

[0048] An assembled flow guiding wall 18 is arranged in the water tank 2 (as Figure 2 shown), guiding the water flow direction, reducing the dead corners of the flow field in the water tank 2, enhancing the water body flow, and ensuring the water quality in the water tank 2.

[0049] Among them, a mechanical exhaust device 11 is arranged on the top of the pump house 1. The ventilation of the pump house 1 is controlled by the mechanical exhaust device 11, which is not restricted by natural conditions and can be controlled according to the axial flow fan, so as to obtain a stable ventilation frequency. The structure of the mechanical exhaust device 11 refers to a cap-type mechanical exhaust device with Chinese patent number ZL2023202138701.

[0050] Inside the pump house 1, there are a water pump 12 and a control cabinet 16 connected to each other. One end of the water pump 12 is connected to the water tank 2 through a suction pipeline, and the other end of the water pump 12 is connected to a high-level water tank 19 outside the pump house 1 through a water outlet pipeline.

[0051] Specifically, a water pump 12 is installed in the pump house 1. One end of the water pump 12 extends into the water tank 1 through a suction pipeline and a control valve, and the other end of the water pump 12 extends outside the pump house 1 through a control valve and a water outlet pipeline. The water outlet pipe is connected to the elevated water tank 19 on the roof for replenishing water to the elevated water tank 19. The water pump 12 in the pump house 1 is controlled by a control cabinet 16 to operate the water pump 12, and the control cabinet 16 is installed in the pump house 1. In this embodiment, the water pump 12 is a centrifugal pump.

[0052] A hydraulic maintenance chamber 15 is also provided at the top of the pump house 1. The structure of the hydraulic maintenance chamber 15 can refer to the sliding rail cover plate structure of the maintenance hole of the pump station in Chinese Patent ZL201720611190X or the electric cover plate mechanism of a pump station maintenance opening in Chinese Patent ZL2022202114543. A lock is configured on the door of the hydraulic maintenance chamber 15, and a corner staircase (bolt-assembled corner staircase 17) is provided at the lower part of the hydraulic maintenance chamber 15, through which the inside of the buried pump house 1 can be accessed.

[0053] Refer to Figures 5 to 9 As shown, the inside of the water tank 2 and the pump house 1 is fixedly supported by an integral frame structure composed of support columns 22, top cross beams, and surrounding beams (supporting the modular plates 27 on the top and sides). Special support members and hot-dip galvanized bolts 24 are used to connect between the integral structural members, and the welded parts of the structural load-bearing members are treated with hot-dip galvanization.

[0054] Multiple square tube columns 22 are evenly distributed on the four walls of the pump house 1, and multiple square tube columns 22 are evenly distributed on the four walls and inside of the water tank 2; the top of the square tube columns 22 is connected and fixed to the top cross beam and the surrounding beams through support members and galvanized bolts 24.

[0055] The above is only the preferred embodiment of the present utility model and does not constitute a limitation to the protection scope of the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. An assembled integrated underground pump station for tunnel fire fighting and greening irrigation, characterized in that: The assembled integrated underground pump station is arranged at the entrance of the highway tunnel, and includes a water tank and a pump room arranged adjacent to each other, and the water tank and the pump room are assembled by modular panels; the water tank is provided with a water inlet pipeline, and the water outlet pipe of the deep well pump is connected through the water inlet pipeline to inject water into the water tank; a maintenance manhole is arranged on the top of the water tank, which also serves as a water intake for greening irrigation and tunnel fire fighting; the pump room is provided with interconnected water pumps and control cabinets, one end of the water pump is connected to the water tank through a water suction pipe, and the other end of the water pump is connected to the high-level water tank outside the pump room through a water outlet pipe, which is used to replenish water in the high-level water tank.

2. The assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in claim 1, characterized in that: The water tank and the pump room are both made of one-piece metal module plates and assembled by bolts and sealing strips.

3. The assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in claim 1, characterized in that: The pump station foundation of the assembled integrated underground pump station is located below the water tank and the pump room, and includes a concrete cushion layer and a concrete raft slab arranged in sequence from bottom to top. The concrete raft slab is connected to the side plates of the water tank and the pump room by pouring grouting material, and there is no need to set a bottom plate for the water tank and the pump room.

4. An assembled integrated underground pump station for tunnel fire fighting and greening irrigation as described in any one of claims 1 to 3, characterized in that: The water tank and the pump room are supported by an integral frame, and the integral frame structure includes columns, a top cross beam and surrounding beams.

5. The assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in claim 4, characterized in that: A plurality of square tube columns are evenly arranged on the four walls of the pump room, and a plurality of square tube columns are evenly arranged on the four walls of the water tank and inside the water tank; the tops of the square tube columns are connected and fixed to the top cross beams and the surrounding beams through supporting members and bolts.

6. An assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in any one of claims 1 to 3, characterized in that: A ventilation pipe is arranged on the top of the water tank, two ventilation pipes are arranged one high and one low, and insect-proof nets are arranged at the ends of the ventilation pipes.

7. An assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in any one of claims 1 to 3, characterized in that: An overflow pipe and a drain pipe are provided in the water tank and are connected to the sump in the pump room. The sewage pump and the matching sewage pipe valve arranged in the sump are discharged to the drainage pipe outside the pump room.

8. An assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in any one of claims 1 to 3, characterized in that: A plurality of assembled guide walls are erected in the water tank to guide the water flow.

9. An assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in any one of claims 1 to 3, characterized in that: A mechanical exhaust device is arranged on the top of the pump room.

10. An assembled integrated underground pump station for tunnel fire fighting and greening irrigation as claimed in any one of claims 1 to 3, characterized in that: A hydraulic maintenance cabin is arranged on the top of the pump room.

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